Penerbitan Terkini

kamaruzzaman sopian;mohd. yusof bin hj. othman;norasikin binti ahmad ludin;sohif bin mat;masita binti mohammad.  (2021).  formulating a renewable energy r&d framework for research universities in malaysia based on theories of economy, diffusion of innovation and learning curve.  -

kamaruzzaman sopian;mohd. yusof bin hj. othman;norasikin binti ahmad ludin;sohif bin mat;masita binti mohammad.  (2021).  formulating a renewable energy r&d framework for research universities in malaysia based on theories of economy, diffusion of innovation and learning curve.  -

kamaruzzaman sopian;mohd. yusof bin hj. othman;norasikin binti ahmad ludin;sohif bin mat;masita binti mohammad.  (2021).  formulating a renewable energy r&d framework for research universities in malaysia based on theories of economy, diffusion of innovation and learning curve.  -

ahmad fazlizan bin abdullah;kamaruzzaman sopian;sohif bin mat;lim chin haw;halim bin hj razali.  (2021).  vertical axis wind turbine aspect ratio and solidity optimization for low wind speed application.  -

nilofar asim;kamaruzzaman sopian;chan hoy yen;masita binti mohammad;halim bin hj razali.  (2021).  development of modified photocatalytic self-cleaning concrete (geopolymer) for reducing pollution from air.  -

halim bin hj razali;kamaruzzaman sopian;mohd saiful dzulkefly bin zan;mohd sukor bin su`ait;lee tian khoon.  (2021).  optimization of fast charging battery management system for electric vehicle (ev) in malaysia.  -

zalita binti zainuddin;kamaruzzaman sopian;mohd hafidz bin haji ruslan;idris bin zulkifle.  (2021).  sistem pengering suria rumah hijau untuk peningkatan kualiti herba kering.  -

kamaruzzaman sopian;nilofar asim;ahmad fazlizan bin abdullah;adnan bin ibrahim.  (2021).  jet impingement photovoltaic-thermal (pvt) solar air collector for higher electricity production.  -

kamaruzzaman sopian;md. akhtaruzzaman;puvaneswaran a/l chelvanathan.  (2021).  development of high efficiency, low cost and non-toxic all-sputtered cu2znsns4 (czts) thin film solar cells.  -

emy zairah ahmad, kamaruzzaman sopian, hasila jarimi, ahmad fazlizan, abdelnaser elbreki, ag sufiyan abd hamid, shirin rostami, adnan ibrahim.  (2021).  recent advances in passive cooling methods for photovoltaic (pv) performance enhancement.  - international journal of electrical and computer engineering.  146-154. 

zeki ahmed darwish, kamaruzzaman sopian, ahmad fudholi.  (2021).  reduced output of photovoltaic modules due to different types of dust particles.  - journal of cleaner production.  1-16. 

fairuz suzana mohd chachuli, sohif mat, norasikin ahmad ludin, kamaruzzaman sopian.  (2021).  performance evaluation of renewable energy r&d activities in malaysia.  - renewable energy.  544-560. 

nilofar asim , marzieh badiei, mohammad torkashvand, masita mohammad , mohammad a. alghoul , shawkat s. gasaymeh, kamaruzzaman sopian.  (2021).  wastes from the petroleum industries as sustainable resource materials in construction sectors: opportunities, limitations, and directions.  - journal of cleaner production.  1-14. 

a.m.elbreki, f. muftah, k. sopian, h. jarimi, a. fazlizan, a. ibrahim.  (2021).  experimental and economic analysis of passive cooling pv module using fins and planar reflector.  - case studies in thermal engineering.  1-8. 

refat moshery, tan yong chai, kamaruzzaman sopian, ahmad fudholi , ali h. a. al-waeli.  (2021).  thermal performance of jet-impingement solar air heater with transverse ribs absorber plate.  - solar energy.  355-366. 

raheem k. ajeel, k. sopian, rozli zulkifli.  (2021).  a novel curved-corrugated channel model: thermal-hydraulic performance and design parameters with nanofluid.  - international communications in heat and mass transfer.  1-21. 

asmaa soheil najm, puvaneswaran chelvanathan, sieh kiong tiong ,mohammad tanvirul ferdaous, seyed ahmad shahahmadi, yulisa yusoff, kamaruzzaman sopian, nowshad amin.  (2021).  numerical insights into the influence of electrical properties of n-cds buffer layer on the performance of slg/mo/p-absorber/n-cds/n-zno/ag configured thin film photovoltaic devices.  - coatings.  1-17. 

wong min jin karen, j.h. wong, zhipeng wang , nancy j. siambun, willey y.h. liew, w. k. muzammil, k. sopian, g.j.h. melvin.  (2021).  facile mild hydrothermal treatment for surface functionalization of carbonized sawdust.  - materials chemistry and physics.  1-8. 

k. nurhafiza, p. chelvanathan, k. sobayel, f. t. munna, huda abdullah, mohd adib ibrahim, kuaanan techato, k. sopian, n. amin, md. akhtaruzzaman.  (2021).  effect of cd2 molar concentration in cdzns thin film by chemical bath deposition technique using alternative sulfur precursor.  - ecs journal of solid state science and technology.  1-6. 

ali h. a. al-waeli, hussein a. kazem, miqdam t. chaichan, k. sopian.  (2021).  pipe flow configurations in waterbased photovoltaic thermal collectors.  - wsset - world society of sustainable energy technologies.  3. 

m. isah, k.s. rahman, c. doroody, m.n. harif, h.n. rosly, k. sopian, s.k. tiong, n. amin.  (2021).  design optimization of cdte/si tandem solar cell using different transparent conducting oxides as interconnecting layers.  - journal of alloys and compounds.  1-6. 

raheem k. ajeel, rozli zulkifli, k. sopian, saba n. fayyadh, ahmad fazlizan , adnan ibrahim.  (2021).  numerical investigation of binary hybrid nanofluid in new configurations for curved-corrugated channel by thermal-hydraulic performance method.  - powder technology.  144-159. 

raheem kadhim ajeel, k. sopian, rozli zulkifli.  (2021).  thermal-hydraulic performance and design parameters in a curved-corrugated channel with l-shaped baffles and nanofluid.  - journal of energy storage.  1-24. 

ft munna, vidhya selvanathan, k sobayel, ghulam muhammad, nilofar asim, nowshad amin, kamaruzzaman sopian, md akhtaruzzaman.  (2021).  diluted chemical bath deposition of cdzns as prospective buffer layer in cigs solar cell.  - ceramics international.  11003-11009. 

m.a.s.m.tarminzi, a.a.razak, m.a.a.azmi, a.fazlizan, z.a.a.majid, k.sopian.  (2021).  comparative study on thermal performance of cross-matrix absorber solar collector with series and parallel configurations.  - case studies in thermal engineering.  1-17. 

muhd hatim rohaizar, suhaila sepeai, p. j. ker, n. a. ludin, m. a. ibrahim, k. sopian, saleem h. zaidi.  (2021).  influence of front surface single pulse laser drilling on a bifacial solar cell determined through simulation and experiment.  - optical and quantum electronics.  1-13. 

nurul aiman mhd safri, zalitazainuddin, mohd syahriman mohd azmi, idris zulkifle, ahmad fudholi,mohd hafidz ruslan,kamaruzzaman sopian..  (2021).  current status of solar-assisted greenhouse drying systems for drying industry (food materials and agricultural crops).  - trends in food science & technology.  633-657. 

vidhya selvanathan, mohd hafidz ruslan, ammar ahmed nasser alkahtani, nowshad amin, kamaruzzaman sopian , ghulam muhammad, md akhtaruzzaman.  (2021).  organosoluble, esterified starch as quasi-solid biopolymer electrolyte in dye-sensitized solar cell.  - journal of materials research and technology.  1638-1648. 

zairul azrul zakaria, zafri azran abdul majid, muhammad amin harun, ahmad faris ismail, sany izan ihsan, kamaruzzaman sopian, amir abdul razak, ahmad fadzil sharol.  (2021).  investigation on the thermal performance of evacuated glass-thermal absorber tube collector (egatc) for air heating application.  - journal of advanced research in fluid mechanics and thermal sciences.  48-64. 

ahmad halal, kazi sajedur rahman, siti fazlili abdullah, kamaruzzaman sopian, nowshad amin.  (2021).  an investigation on cds1-xtex interface compound in cds/cdte hetero-junction solar cells by density functional theory (dft).  - superlattices and microstructures.  1-12. 

hussein a. kazem, ali h.a. al-waeli, miqdam t. chaichan, kamaruzzaman sopian.  (2021).  numerical and experimental evaluation of nanofluids based photovoltaic/thermal systems in oman: using silicone-carbide nanoparticles with water-ethylene glycol mixture.  - case studies in thermal engineering.  1-13. 

hasila jarimi, devrim aydin, mohd nazari abu bakar, adnan ibrahim, ahmad fazlizan, ahmad afif safwan and kamaruzzaman sopian.  (2021).  exergy based sustainability analysis of a dual fluid hybrid photovoltaic/thermal (pv/t) solar collector.  - international journal of exergy.  358-373. 

hassan ahmoum, puvaneswaran chelvanathan mohd sukor su'ait, mourad boughrara, guojian li, ralph gebauer, kamaruzzaman sopian, mohamed kerouad, nowshad amin qiang wang.  (2021).  sol-gel prepared cu2znsns4 (czts) semiconductor thin films: role of solvent removal processing temperature.  - materials science in semiconductor processing.  1-7. 

ali h. a. al-waeli, hussein a. kazem, miqdam t. chaichan, k. sopian.  (2021).  a review of photovoltaic thermal systems: achievements and applications.  - international journal of energy research.  1269-1308. 

samiya mahjabin, md. mahfuzul haque, sobayel khan, vidhya selvanathan, m. s. jamal, m. s. bashar, hend i. alkhammash, mohammad ismail hossain, md. shahiduzzaman, nowshad amin, kamaruzzaman sopian, md. akhtaruzzaman.  (2021).  effects of oxygen concentration variation on the structural and optical properties of reactive sputtered wox thin film.  - solar energy.  202-211. 

a. a. ammar, k. sopian, m. mohanraj.  (2021).  photovoltaic thermal collector assisted heat pumps using environment-friendly working fluids.  - proc imeche part e: journal of process mechanical engineering.  694-706. 

saadah ahmad sowi, shahrir abdullah, kamaruzzaman sopian.  (2021).  the effect of linearly increasing/decreasing pitch ratio twisted tape with various progression rate and nanofluid towards the system performance.  - thermal science and engineering progress.  1-16. 

hussein a. kazem, miqdam t. chaichan, ali h.a. al-waeli, kamaruzzaman sopian.  (2021).  investigation of a nanofluid-based photovoltaic thermal system using single-wall carbon nanotubes: an experimental study.  - international journal of energy research.  10285-10303. 

ali sotoodeh, kamaruzzaman sopian, adnan ibrahim.  (2021).  experimental studies of drying pineapple with an active indirect solar tunnel dryer in malaysia.  - journal of advanced research in fluid mechanics and thermal sciences.  105-117. 

o.r. alobaidi, p. chelvanathan, b. bais, k. sopian, m.a. alghoul, md. akhtaruzzaman, n. amin.  (2021).  vacuum annealed ga:zno (gzo) thin films for solar cell integrated transparent antenna application.  - materials letters.  1-5. 

a. r. m. rais , s. sepeai , m. k. m. desa , m. a. ibrahim , p. j. ker , s. h. zaidi , k. sopian.  (2021).  photo-generation profiles in deeply-etched, two-dimensional patterns in interdigitated back contact solar cells.  - journal of ovonic research.  283-289. 

kamaruzzaman sopian, ali h. a. al-waeli, hussein a. kazem.  (2021).  nano enhanced fluids and latent heat storage material for photovoltaic modules: a case study and parametric analysis.  - international journal of energy research.  12944-12967. 

m. bassam abdulsahib, k. sopian, adnan ibrahim.  (2021).  photovoltaic thermal (pvt) with advanced tube design and working fluid - a review.  - international journal of renewable energy research.  600-617. 

m.yahya, r. hasibuan, r. sundari, k. sopian.  (2021).  experimental investigation of the performance of a solar dryer integrated with solid desiccant coloums using water based solar collector for medicinal herb.  - international journal of power electronics and drive system.  1024-1033. 

mohammed. abd al -amir khadim, wisam a. abd al-wahid, dhafer m. hachima, kamaruzzaman sopian.  (2021).  experimental study of the performance of cylindrical solar still with a hemispherical dome.  - smart science.  30-39. 

md. akhtaruzzaman, md. shahiduzzaman, nowshad amin, ghulam muhammad, mohammad aminul islam, khan sobayel bin rafiq, kamaruzzaman sopian.  (2021).  impact of ar flow rates on micro-structural properties of ws2 thin film by rf magnetron sputtering.  - nanomaterials.  1-16. 

norasikin ahmad ludin, nurfarhana alyssa ahmad affandi, kathleen purvis roberts , azah ahmad, mohd adib ibrahim, kamaruzzaman sopian, sufian jusoh.  (2021).  environmental impact and levelised cost of energy analysis of solar photovoltaic systems in selected asia pacific region: a cradle to grave approach.  - sustainability.  1-23. 

abshir m. ashour, taib iskandar mohamad, syed mohammad azeem, selvin p. thomas, yusuf a. aina, kamaruzzaman sopian, adnan ibrahim.  (2021).  deployment of rooftop solar photovoltaic electrification for residential buildings in an industrial city: a study on public perception and acceptance.  - international journal of renewable energy research.  945-951. 

puteri nor aznie fahsyar, norasikin ahmad ludin, noor fadhilah ramli, mohamad firdaus mohamad noh, rozan mohamad yunus, suhaila sepeai, mohd adib ibrahim, mohd asri teridi, kamaruzzaman sopian.  (2021).  ambient fabrication of perovskite solar cells through delay deposition technique.  - materials for renewable and sustainable energy.  1-8. 

puteri nor aznie fahsyar, norasikin ahmad ludin, noor fadhilah ramli, suhaila sepeai, mohd sukor suait, mohd adib ibrahim, mohd asri teridi, kamaruzzaman sopian.  (2021).  correlation of simulation and experiment for perovskite solar cells with mos2 hybrid htl structure.  - applied physics a-materials science & processing.  1-8. 

marshahida mat yashim, muhammad hanif sainorudin, masita mohammad, ahmad fudholi, nilofar asim, halim razali, kamaruzzaman sopian.  (2021).  recent advances on lightweight aerogel as a porous receiver layer for solar thermal technology application.  - solar energy materials and solar cells.  1-22. 

miqdam t. chaichan, hussein a. kazem, ali h.a. al-waeli, k. sopian.  (2021).  controlling the melting and solidification points temperature of pcms on the performance and economic return of the water-cooled photovoltaic thermal system.  - solar energy.  1344-1357. 

nilofar asim, marzieh badiei, kamaruzzaman sopian.  (2021).  review of the valorization options for the proper disposal of face masks during the covid-19 pandemic.  - environmental technology & innovation.  1-15. 

muhammad amin harun, zafri azran abdul majid, zairul azrul zakaria, ahmad faris ismail, sany izan ihsan, kamaruzzaman sopian, ahmad fadzil sharol, amir abdul razak.  (2021).  study on selection of a suitable material and the parameters for designing a portable flat plate base-thermal cell absorber (fpbtca).  - journal of advanced research in fluid mechanics and thermal sciences.  71-92. 

norhayati mat wajid, abdul murad zainal abidin, mirhamed hakemzadeh, hasila jarimi, ahmad fazlizan, mohd faizal fauzan, adnan ibrahim, ali h. a. al-waeli, kamaruzzaman sopian.  (2021).  solar adsorption air conditioning system - recent advances and its potential for cooling an office building in tropical climate.  - case studies in thermal engineering.  1-11. 

j. assadeg, ali h.a. al-waeli, a. fudholi, k. sopian.  (2021).  energetic and exergetic analysis of a new double pass solar air collector with fins and phase change material.  - solar energy.  260-271. 

nilofar asim, marzieh badiei, ahmad fudholi, halim razali, masita mohammad, nurul asma samsudin, md. akhtaruzzaman, nowshad amin, kamaruzzaman sopian.  (2021).  prospect of aerogels as desiccant materials: possibilities and challenges.  - journal of porous media.  49-56. 

hasrul nisham rosly, kazi sajedur rahman, siti fazlili abdullah, muhammad najib harif, camellia doroody, puvaneswaran chelvanathan, halina misran, kamaruzzaman sopian, nowshad amin.  (2021).  the role of deposition temperature in the photovoltaic properties of rf-sputtered cdse thin films.  - crystals.  1-13. 

s. mohamadi, m.h. yazdi, e. solomin, a. fudholi, k. sopian, p.l. chong.  (2021).  heat transfer and entropy generation analysis of internal flow of nanorefrigerant with slip condition at wall.  - thermal science and engineering progress.  1-11. 

hussein a. kazem, miqdam t chaichan, ali h.a. al-waeli, k sopian.  (2021).  comparison and evaluation of solar photovoltaic thermal system with hybrid collector: an experimental study.  - thermal science and engineering progress.  1-15. 

ammar m. abdulateef, marek jaszczur, qusay hassan, r anish, hakeem niyas, kamaruzzaman sopian, jasim abdulateef.  (2021).  enhancing the melting of phase change material using a fins nanoparticle combination in a triplex tube heat exchanger.  - journal of energy storage.  1-14. 

asmaa soheil najm, norasikin a. ludin, norul hisham hamid, mohd adib ibrahim, mohd asri mat teridi, kamaruzzaman sopian, hazim moria, araa mebdir holi, asla a. al-zahrani, hasanain salah naeem.  (2020).  effect of chenodeoxycholic acid on the performance of dye-sensitized solar cells utilizing pinang palm (areca catechu) dye.  - sains malaysiana.  3017-3028. 

siti kartom binti kamarudin;kamaruzzaman sopian;mohd adib bin ibrahim;umi azmah binti hasran;sahriah binti basri;azran bin mohd zainoodin.  (2020).  development of ethanol based micro fuel cells powers the hearing aids of the future.  -

ahmad fazlizan bin abdullah;kamaruzzaman sopian;sohif bin mat;lim chin haw.  (2020).  design and testing of extendable arm vertical axis wind turbine.  -

mohd hafidz bin haji ruslan;mohd. yusof bin hj. othman;kamaruzzaman sopian;zahari bin ibarahim;sohif bin mat;mohamad yusof bin sulaiman;ahmad fudholi bin jurlius.  (2020).  program: rural transformation through net neutral renewable energy sustainable community. sub projek: advanced fresnel lens in solar thermal system under tropical diffused sky conditions.  -

mohd adib bin ibrahim;kamaruzzaman sopian;norasikin binti ahmad ludin;mohd asri bin mat teridi;suhaila binti sepeai.  (2020).  development of a prototype nanocrystal non-toxic semiconductor in quantum dot sensitized solar cell.  -

badariah binti bais;kamaruzzaman sopian;sawal hamid bin md ali;nowshad amin;iskandar bin yahya.  (2020).  development of cost-effective, stable and environmental friendly czts thin film solar cell on flexible substrates for versatile application.  -

shuhib mamat, halim haji razali, kamaruzzaman sopian, lee tian khoon, azizan ahmad, noriyoshi matsumi, mohd sukor su'ait.  (2020).  conductivity and dielectric behavior studies on solid polymer electrolyte based poly(methyl methacrylate) (pmma) grafted natural rubber (mg49) polymer blends.  - jurnal kejuruteraan.  599-606. 

k. sopian, m alkhair,a m abed, b elhub, a m elbreki , ali h a al-waeli.  (2020).  recent advances in solar thermal assisted air conditioning systems.  - icemis'20: proceedings of the 6th international conference on engineering & mis 2020.  1-10. 

h.ahmoum, p.chelvanathan, m.s.su'ait, m.boughrara, g.li, ali h.a.al-waeli, k.sopian, m.kerouad, n.amin.  (2020).  impact of preheating environment on microstructural and optoelectronic properties of cu2znsns4 (czts) thin films deposited by spin-coating.  - superlattices and microstructures.  1-8. 

muhd hatim rohaizar, suhaila sepeai, norasikin ahmad ludin, mohd adib ibrahim, kamaruzzaman sopian, saleem h.zaidi.  (2020).  an improved efficiency by surface modification using pulse laser for partial transparent bifacial solar cell.  - jurnal kejuruteraan.  157-163. 

s. s. s. baljit, h. y. chan, s. h. zaidi, k. sopian.  (2020).  performance study of a dual-fluid photovoltaic thermal collector with reflection and refraction solar concentrators.  - international journal of low-carbon technologies.  25-39. 

j. assadeg, ali h. a. alwaeli, k. sopian, h. moria, a. s. a. hamid, a. fudholi.  (2020).  solar assisted heat pump system for high quality drying applications: a critical review.  - international journal of renewable energy research.  303-316. 

k. sopian,m. alkhair,a.m. abed,b. elhub,a. m. elbreki, ali h.a. alwaeli.  (2020).  recent advances in solar thermal assisted air conditioning systems.  - international conference on electrical engineering and information technology.  372-381. 

nurul huda abdul razak, kamaruzzaman sopian, nowshad amin, md akhtaruzzaman.  (2020).  investigation on the post-treatment after pulsed nd:yag laser texturing on silicon solar cells surfaces.  - proceedings of spie - energy harvesting and storage: materials, devices, and applications x.  1-7. 

ahmad fudholi, nur farhana mohd razali, mohd hafidz ruslan, kamaruzzaman sopian.  (2020).  application of nanofluids for photovoltaic thermal (pvt) collectors: a review.  - journal of advanced research in fluid mechanics and thermal sciences.  35-44. 

nur fairuz rostan, suhaila sepeai, rozan mohamad yunus, norasikin ahmad ludin, mohd asri mat teridi, mohd adib ibrahim, kamaruzzaman sopian.  (2020).  optoelectronic and morphology properties of perovskite/silicon interface layer for tandem solar cell application.  - surface and interface analysis.  422-432. 

miqdam t. chaichan, hussein a. kazem, ali h.a. al-waeli and kamaruzzaman sopian.  (2020).  the effect of dust components and contaminants on the performance of photovoltaic for the four regions in iraq: a practical study.  - renewable energy and environmental sustainability.  1-7. 

siti nor fazlina abdul hamid, nurul aqidah mohd sinin, zon fazlila mohd ahir, suhaila sepeai, kamaruzzaman sopian and saleem h zaidi.  (2020).  electrical investigation of ito films in al-doped crystalline silicon solar cells.  - materials research express.  1-8. 

hussein a. kazem, miqdam t. chaichan, ali h.a. al-waeli, k. sopian.  (2020).  a review of dust accumulation and cleaning methods for solar photovoltaic systems.  - journal of cleaner production.  1-22. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2020).  electrical characteristics of photovoltaic thermal collector with water titania nanofluid flow.  - journal of advanced research in fluid mechanics and thermal sciences.  20-28. 

md. shahariar chowdhury, kazi sajedur rahman, tanjia chowdhury, narissara nuthammachot, kuaanan techato, md. akhtaruzzaman, sieh kiong tiong, kamaruzzaman sopian, nowshad amin.  (2020).  an overview of solar photovoltaic panels end-of-life material recycling.  - energy strategy reviews.  1-11. 

hussein a. kazem, miqdam t. chaichan, ali h.a.alwaeli, k sopian.  (2020).  evaluation of aging and performance of grid connected photovoltaic system northern oman: seven years experimental study.  - solar energy.  1247-1258. 

mohammad yacoub al shdaifat, rozli zulkifli, kamaruzzaman sopian, abeer adel salih.  (2020).  thermal and hydraulic performance of cuo water nanofluids: a review.  - micromachines.  1-19. 

f.t.munna, p.chelvanathan, k.sobayel k.nurhafiza, d.k.sarkar, majid nour, hatem sindi, m.rawa, k. sopian, n.amin, md.akhtaruzzaman.  (2020).  effect of zinc doping on the optoelectronic properties of cadmium sulphide (cds) thin films deposited by chemical bath deposition by utilising an alternative sulphur precursor.  - optik.  1-9. 

k.sobayel, m.shahinuzzam, n.amin m.r.karime m.a.dare r.gul, m.a.alghoul, k.sopian, a.k.m.hasan, md.akhtaruzzaman.  (2020).  efficiency enhancement of cigs solar cell by ws2as window layer throughnumerical modelling tool.  - solar energy.  479-485. 

a. k. mahmud hasan, itaru raifuku, n. amin, yasuaki ishikawa, d. k. sarkar, k. sobayel, mohammad r. karim, anwar ul-hamid, h. abdullah, md. shahiduzzaman, yukiharu uraoka, kamaruzzaman sopian, md. akhtaruzzaman.  (2020).  air-stable perovskite photovoltaic cells with low temperature deposited niox as an efficient hole-transporting material.  - optical materials express.  1801-1816. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2020).  improvement of photovoltaic module efficiency using spiral absorber and water.  - journal of advanced research in fluid mechanics and thermal sciences.  131-139. 

m. shahinuzzaman, zahira yaakob, farah hannan anuar, parul akhtar, n. h. a. kadir, a. k. mahmud hasan, k. sobayel, majid nour, hatem sindi, nowshad amin, k. sopian, md. akhtaruzzaman.  (2020).  in vitro antioxidant activity of ficus carica l. latex from 18 different cultivars.  - scientific reports.  1-14. 

muslizainun mustapha, ahmad fudholi, kamaruzzaman sopian.  (2020).  mathematical modelling of bifacial photovoltaic-thermal (bpvt) collector with mirror reflector.  - international journal of renewable energy research.  654-662. 

raheem k. ajeel,w. saiful-islam, k. sopian, m.z. yusoff.  (2020).  analysis of thermal-hydraulic performance and flow structures of nanofluids across various corrugated channels: an experimental and numerical study.  - thermal science and engineering progress.  1-17. 

saadah ahmad, shahrir abdullah and kamaruzzaman sopian.  (2020).  numerical and experimental analysis of the thermal performances of sic/water and al2o3/water nanofluid inside a circular tube with constant-increased-pr twisted tape.  - energies.  1-24. 

saadah ahmad, shahrir abdullah and kamaruzzaman sopian.  (2020).  a review on the thermal performance of nanofluid inside circular tube with twisted tape inserts.  - advances in mechanical engineering.  1-26. 

muhammad aslam mohd safari, nurulkamal masseran, alias jedi, sohif mat, kamaruzzaman sopian, azman bin abdul rahim, azami zaharim.  (2020).  rural public acceptance of wind and solar energy: a case studyfrom mersing, malaysia.  - energies.  1-24. 

hussein a. kazem, miqdam t. chaichan, ali h.a. al-waeli, k. sopian.  (2020).  a novel model and experimental validation of dust impact on grid-connected photovoltaic system performance in northern oman.  - solar energy.  564-578. 

mohd yusof hj. othman, kamaruzzaman sopian, mohd hafidz ruslan, sohif mat, and suhaila abdul hamid.  (2020).  renewable energy and sustainable buildings : selected paper from the world renewal energy congress wrec 2018.  - 461. 

zainab saberi, ahmad fudholi, noorlina mohd zainuddin, zahari ibarahim, kamaruzzaman sopian.  (2020).  thermal performance of an absorber rod type solar air collector with single-path design.  - journal of advanced research in fluid mechanics and thermal sciences.  1-12. 

zainab saberi, ahmad fudholi, kamaruzzaman sopian.  (2020).  fitting of weibull distribution method to analysis wind energy potential at kuala terengganu, malaysia.  - journal of advanced research in fluid mechanics and thermal sciences.  13-22. 

kamaruzzaman sopian, ali h. a. alwaeli, ali najah al-shamani, mohd yusof hj. othman.  (2020).  cooling of pv panels for performance cooling of pv panels for performance enhancement of grid-connected systems.  - world renewable energy congress wrec 2018.  139-147. 

samiya mahjabin, md. mahfuzul haque, k. sobayel, m. s. jamal, m. a. islam, v. selvanathan, abdulaziz k. assaifan, hamad f. alharbi, k. sopian, n. amin, md. akhtaruzzaman.  (2020).  perceiving of defect tolerance in perovskite absorber layer for efficient perovskite solar cell.  - ieee access.  10634-10653. 

ali h.a.al-waeli, kamaruzzaman sopian, hussein a. kazema, miqdam t. chaichan.  (2020).  evaluation of the electrical performance of a photovoltaic thermal system using nano-enhanced paraffin and nanofluids.  - case studies in thermal engineering.  1-8. 

n. azmi, p. chelvanathan, y. yusoff, s.a. shahahmadi, s.k. tiong, k. sopian, n. amin.  (2020).  a comprehensive study on the effects of alternative sulphur precursor on the material properties of chemical bath deposited cds thin films.  - ceramics international.  18716-18724. 

amin shahsavar, hossein moayedi, ali h. a. al-waeli, kamaruzzaman sopian, puvaneswaran chelvanathan.  (2020).  machine learning predictive models for optimal design of building-integrated photovoltaic-thermal collectors.  - international journal of energy research.  5675-5695. 

ali h.a. al-waeli, hussein a. kazem , jabar h. yousif, miqdam t. chaichan, k. sopian.  (2020).  mathematical and neural network modeling for predicting and analyzing of nanofluid-nano pcm photovoltaic thermal systems performance.  - renewable energy.  963-980. 

mohammed islam elsmani, jinyoun cho, maria recamán payo, ivan gordon , elena tresso, noshin fatima , mohd adib ibrahim , kamaruzzaman sopian, jef poortmans.  (2020).  analysis of the interface of rf-sputtered moox based hole-selective contacts for silicon heterojunction solar cells.  - 37th european photovoltaic solar energy conference and exhibition.  74-78. 

a.m. elbreki, k. sopian, a. fazlizan, a. ibrahim.  (2020).  an innovative technique of passive cooling pv module using lapping fins and planner reflector.  - case studies in thermal engineering.  1-8. 

kamaruzzaman sopian, ali h.a. al-waeli, hussein a. kazem.  (2020).  energy, exergy and efficiency of four photovoltaic thermal collectors with different energy storage material.  - journal of energy storage.  1-10. 

a. k. mahmud hasan, k. sobayel, itaru raifuku, yasuaki ishikawa, md. shahiduzzaman, majid nour, hatem sindi, k. sopian, n. amin, md. akhtaruzzaman.  (2020).  optoelectronic properties of electron beam-deposited niox thin films for solar cell application.  - results in physics.  1-9. 

a. s. a. hamid, a. ibrahim, j. assadeg, e. z. ahmad, k. sopian.  (2020).  techno-economic analysis of a hybrid solar dryer with a vacuum tube collector for hibiscus cannabinus l fiber.  - international journal of renewable energy research.  1608-1613. 

nilofar asim, mohamad hassan amin, nurul asma samsudin, marzieh badiei, halim razali, md akhtaruzzaman, nowshad amin, kamaruzzaman sopian.  (2020).  development of effective and sustainable adsorbent biomaterial from an agricultural waste material: cu(ii) removal.  - materials chemistry and physics.  1-11. 

ahmed zayed al shaqsi, kamaruzzaman sopian, amr al-hinai.  (2020).  review of energy storage services, applications, limitations, and benefits.  - energy reports.  288-306. 

saadah ahmad sowi, kamaruzzaman sopian, shahrir abdullah.  (2020).  turbulent convective heat transfers of sic/water through circular pipe equipped with modified twisted tape.  - proceedings of mechanical engineering research day 2020, pp. 381-382, december 2020.  381-382. 

nurul aqidah mohd sinin, mohd norizam md daud, mohd adib ibrahim, suhaila sepeai, kamaruzzaman sopian.  (2020).  texturization of silicon nanowire (sinw) process for p-type silicon wafer.  - proceedings of mechanical engineering research day 2020.  123-124. 

kamaruzzaman sopian, ali h a alwaeli, hussein a kazem.  (2020).  advanced photovoltaic thermal collectors.  - journal of process mechanical engineering.  206-213. 

mir hamed hakemzadeh, aghil shavalipour, kamaruzzaman sopian, saleem h. zaidi.  (2020).  an investigation of modelling diffuse solar radiation under tropical climatic conditions.  - international journal of renewable energy research.  499-511. 

a.m.elbreki, a.f.muftah, k.sopian, h.jarimi, a.fazlizan, a.ibrahim.  (2020).  solar module passive cooling with lapping fins.  - pv magazine.  1-2. 

a. s. a. hamid, a. b. a. rahman, j. dayou, a. ibrahim and k. sopian.  (2020).  variation of solar energy resources throughout the year in the city of kota kinabalu malaysia.  - e-international conference on earth sciences and environment icemen2020.  1-12. 

a. sotoodeh, a. s. a. hamid, a. ibrahim, k. sopian.  (2020).  experimental investigation on thermal efficiency of indirect forced convection solar tunnel dryer.  - 7th international conference on innovation in science and technology.  1-14. 

mulyanef, kaidir, z. kadafi, k sopian.  (2020).  performance experimental study on stepped type basin solar still to produce salt and fresh water.  - the 5th engineering science & technology international conference 2020.  1-5. 

fairuz suzana mohd chachuli, norasikin ahmad ludin, sohif mat, kamaruzzaman sopian.  (2020).  renewable energy performance evaluation studies using the data envelopment analysis (dea): a systematic review.  - journal of renewable and sustainable energy.  1-15. 

vidhya selvanathan, rosiyah yahya, mohd hafidz ruslan, kamaruzzaman sopian, nowshad amin, majid nour, hatem sindi, muhyaddin rawa,md. akhtaruzzaman.  (2020).  organosoluble starch-cellulose binary polymer blend as a quasi-solid electrolyte in a dye-sensitized solar cell.  - polymer.  1-17. 

ghaith yahay abusaibaa, anwer basim al-aasam, ali h a al-waeli, ali wadi abbas al-fatlawi, kamaruzzaman bin sopian.  (2020).  performance analysis of solar absorption cooling systems in iraq.  - international journal of renewable energy research.  223-230. 

kamaruzzaman sopian;md. akhtaruzzaman.  (2019).  back (al2o3) and front (cdzns) contact heterointerface optimization for single quaternary target sputtered cu2znsns4 (czts) based thin film photovoltaic devices .  -

kamaruzzaman sopian;mohd hafidz bin haji ruslan;mohd adib bin ibrahim;sohif bin mat;chan hoy yen;mohd asri bin mat teridi;suhaila binti sepeai;lim chin haw;saleem hussain zaidi;nilofar asim;md. akhtaruzzaman;masita binti mohammad;ahmad fudholi;halim bin h.  (2019).  grid connected solar photovoltaic thermal (pvt) system with nano fluids and nano pcm.  -

norasikin ahmad ludin, kamaruzzaman sopian, mohd adib ibrahim, mohamad yusof sulaiman, suhaila sepeai, nilofar asim.  (2019).  modelling and fabrication of low cost silicon quantum dot (siqd) solar cell for industrial application.  - 1-6. 

nilofar asim, mohamad hassan amin, m.a. alghoul, marzieh badiei, masita mohammad, shawkat s. gasaymeh, nowshad amin, kamaruzzaman sopian.  (2019).  key factors of desiccant-based cooling systems: materials.  - applied thermal engineering.  1-9. 

m.s jamal, s.a. shahahmadi, p. chelvanathana, hamad f. alharbid, mohammad r. karim, mushtaq ahmad dar, monis luqman, nabeel h. alharthi, yahya s. al-harthi, m. aminuzzaman, nilofar asim, k. sopian, s.k. tiong, nowshad amin, md. akhtaruzzaman.  (2019).  effects of growth temperature on the photovoltaic properties of rf sputtered undoped nio thin films.  - results in physics.  1-7. 

ahmad fudholi, nur farhana mohd razali, mohammad h.yazdi, adnan ibrahim, mohd hafidz ruslan, mohd yusof othman, kamaruzzaman sopian.  (2019).  tio2/water-based photovoltaic thermal (pvt) collector: novel theoretical approach.  - energy.  305-314. 

ammar m. abdulateef, jasim abdulateef, kamaruzzaman sopian, sohif mat, adnan ibrahim.  (2019).  optimal fin parameters used for enhancing the melting and solidification of phase-change material in a heat exchanger unite.  - case studies in thermal engineering.  1-12. 

ali h.a. al-waeli, hussein a. kazem, miqdam t. chaichanc,k. sopian.  (2019).  experimental investigation of using nano-pcm/nanofluid on a photovoltaic thermal system (pvt): technical and economic study.  - thermal science and engineering progress. 

nurul shahirah binti rukman, ahmad fudholi, nur farhana mohd razali, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  energy and exergy analyses of photovoltaic-thermal (pv/t) system with tio2/water nanofluid flow.  - iop conf. series: earth and environmental science.  1-8. 

nurul shahirah binti rukman, ahmad fudholi, nur farhana mohd razali, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  investigation of tio2 and mwcnt nanofluids-based photovoltaicthermal (pv/t) system.  - iop conf. series: earth and environmental science.  1-6. 

ewe win eng, ahmad fudholi, chan hoy yen, nilofar asim, kamaruzzaman sopian.  (2019).  performance of solar air collector-thermoelectric hybrid system.  - iop conf. series: earth and environmental science.  1-5. 

zainab saberi, ahmad fudholi, zahari ibarahim, kamaruzzaman sopian.  (2019).  performance evaluation of absorber rod type solar air collector.  - iop conf. series: earth and environmental science.  1-7. 

zainab saberi, ahmad fudholi, kamaruzzaman sopian.  (2019).  potential evaluation of wind energy in kuala terengganu, malaysia through weibull distribution method.  - iop conf. series: earth and environmental science.  1-7. 

m y zulakmal, a fudholi, n s rukman, s mat, h y chan, k sopian.  (2019).  solar photovoltaic/thermal-thermoelectric generator performance review.  - iop conf. series: earth and environmental science.  1-10. 

wen-tong chong, wan khairul muzammil, hwai-chyuan ong, kamaruzzaman sopian, mohammed gwani, ahmad fazlizan, sin-chew poh.  (2019).  performance analysis of the deflector integrated cross axis wind turbine.  - renewable energy.  675-690. 

ag sufiyan abd hamid, adnan ibrahim, sohif mat, kamaruzzaman sopian.  (2019).  experimental evaluation on large scale solar dryer for drying natural fiber in malaysia.  - international journal of renewable energy research.  598-604. 

ali h.a. al-waeli, miqdam t. chaichan, k. sopian, hussein a. kazem.  (2019).  influence of the base fluid on the thermo-physical properties of pv/ t nanofluids with surfactant.  - case studies in thermal engineering.  1-8. 

ali h.a. al-waeli, miqdam t. chaichan, hussein a. kazem, k. sopian.  (2019).  evaluation and analysis of nanofluid and surfactant impact on photovoltaic-thermal systems.  - case studies in thermal engineering.  1-11. 

win eng ewe, ahmad fudholi, kamaruzzaman sopian, nilofar asim.  (2019).  evaluation of solar air collector-thermoelectric hybrid system.  - journal of advanced research in fluid mechanics and thermal sciences.  142-147. 

mohd norizam md daud, nurul aqidah mohd sinin, suhaila sepeai, kamaruzzaman sopian.  (2019).  transmission of different surface textured on si wafer using ir measurement system.  - 3rd international symposium on advanced materials and nanotechnology.  1-2. 

naser g.a. khrit, kamaruzzaman sopian, mohammad alghoul, lim chin haw, nik lukman nik ibrahim, abdelnaser muftah a. elbreki.  (2019).  comparison of measured and modelled mean radiant temperature in the tropical urban environment.  - alam cipta: international journal of sustainable tropical design research and practice.  35-42. 

ahmad fudholi, muslizainun mustapha, ivan taslim, fitrotun aliyah, arthur gani koto, kamaruzzaman sopian.  (2019).  photovoltaic thermal (pvt) air collector with monofacial and bifacial solar cells: a review.  - international journal of power electronics and drive systems.  2021-2028. 

raheem k. ajeel, w.s.i. salim , k. sopian, m.z. yusoff, khalid hasnan, adnan ibrahim ali, h.a. alwaeli.  (2019).  turbulent convective heat transfer of silica oxide nanofluid through corrugated channels: an experimental and numerical study.  - international journal of heat and mass transfer.  1-15. 

ali h.a. al-waeli, kamaruzzaman sopian, hussein a. kazem, miqdam t. chaichan.  (2019).  novel criteria for assessing pv/t solar energy production.  - case studies in thermal engineering.  1-8. 

ali h. a. al-waeli, hussein a. kazem, miqdam tariq chaichan, kamaruzzaman sopian.  (2019).  photovoltaic/thermal (pv/t) systems: principles, design, and applications.  - 282. 

samir mahmmod ahmad, cheow siu leong, richard w. winder, k. sopian, saleem h. zaidi.  (2019).  electrical, morphological, and compositional characterization of screen-printed al contacts annealed in horizontal and vertical configurations.  - journal of electronic materials.  6382-6396. 

norasikin ahmad ludin mirratul mukminah junedi nurfarhana alyssa ahmad affandi mohd adib ibrahim kamaruzzaman sopian mohd asri mat teridi suhaila sepeai mohd sukor suait, lim chin haw.  (2019).  energy efficiency action plan for a public hospital in malaysia.  - alam cipta: international journal of sustainable tropical design research and practice.  73-79. 

mohamad azman bin che mat isa, kamaruzaman sopian, sohif mat, halim razali.  (2019).  determination of parameters for biochar production from biomass waste using rocking kiln-fluidized bed system.  - international journal of engineering research & technology.  509-513. 

muhd hatim rohaizar, suhaila sepeai, nurfarizza surhada, n.a. ludin, m.a. ibrahim, k. sopian, saleem h. zaidi.  (2019).  light transmission and internal scattering in pulsed laser-etched partially-transparent silicon wafers.  - heliyon.  1-9. 

m.mohanraj, p.chandramohan, m.sakthivel, kamaruzzaman sopian.  (2019).  performance of photovoltaic water pumping systems under the influence of panel cooling.  - renewable energy focus.  31-44. 

ahmed mohamed abdulmula, kamaruzzaman sopian, lim chin haw, ahmad fazlizan.  (2019).  performance evaluation of standalone double axis solar tracking system with maximum light detection mld for telecommunication towers in malaysia.  - international journal of power electronics and drive system (ijpeds). 

h. heriche, p. chelvanathan, s. a. shahahmadi, y. yusoff, b. bais, z. rouabah, s. k. tiong, k. sopian, n. amin.  (2019).  impact of dc-sputtered mo interlayer on the structural and compositional properties of cu2 znsns4 (czts) thin films on flexible mo substrates.  - chalcogenide letters.  595-602. 

k. sopian, ali h. a. alwaeli, hussein a. kazem.  (2019).  novel designs of photovoltaic thermal (pv/t) systems.  - international journal of recent technology and engineering.  6223-6229. 

mohd hafidz ruslan, mohd. yusof othman, kamaruzzaman sopian, zahari ibarahim, sohif mat.  (2019).  pembangunan protaip sistem pengeringan pam haba suria menggunakan pengumpul terma multifungsi utk pengeringan hasil pertanian & her.  - 1-4. 

m.s. jamal, s.a. shahahmadi, mohd. aizat abdul wadi, p. chelvanathan, n. asim, h. misran, m.i. hossain, n. amin, k. sopian, md. akhtaruzzaman.  (2019).  effect of defect density and energy level mismatch on the performance of perovskite solar cells by numerical simulation.  - optik - international journal for light and electron optics.  1204-1210. 

ali h.a. alwaeli, hussein a. kazem, jabar h. yousif, miqdam t. chaichan, kamaruzzaman sopian.  (2019).  mathematical and neural network models for predicting the electrical performance of a pvt system.  - international journal of energy research.  8100-8171. 

jalal assadeg, kamaruzzaman sopian, ahmad fudholi.  (2019).  performance of grid-connected solar photovoltaic power plants in the middle east and north africa.  - international journal of electrical and computer engineering.  3375-3383. 

marzieh badiei, nilofar asim, masita mohammad, md akhtaruzzaman, nowshad amin, mohammad alghoul.  (2019).  photocatalysis: perspective, mechanism, and applications.  - 35. 

ahmad fudholi, kamaruzzaman sopian.  (2019).  a review of solar air flat plate collector for drying application.  - renewable and sustainable energy reviews. 

ahmad fudholi, mariyam fazleena musthafa, abrar ridwan, rado yendra, ari pani desvina, rahmadeni, tri suyono, kamaruzzaman sopian.  (2019).  energy and exergy analysis of air based photovoltaic thermal (pvt) collector: a review.  - international journal of electrical and computer engineering (ijece).  109-117. 

ahmad fudholi, mariyam fazleena musthafa, abrar ridwan, rado yendra, hartono, ari pani desvina, majid khan bin majahar ali, kamaruzzaman sopian.  (2019).  review of solar photovoltaic/thermal (pv/t) air collector.  - international journal of electrical and computer engineering (ijece).  126-133. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  experiment study of water based photovoltaic-thermal (pv/t) collector.  - international journal of electrical and computer engineering (ijece).  118-125. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  review of water-nanofluid based photovoltaic/thermal (pv/t) systems.  - international journal of electrical and computer engineering (ijece). 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  electrical characteristic of photovoltaic thermal collector with water-multiwalled carbon nanotube nanofluid flow.  - indonesian journal of electrical engineering and computer science. 

ammar, a.a., sopian, k., alghoul, m.a., elhub, b., elbreki, a.m..  (2019).  performance study on photovoltaic/thermal solar-assisted heat pump system.  - journal of thermal analysis and calorimetry. 

nilofar asim, mohamad hassan amin, suresh k. bhargava, and kamaruzzaman sopian.  (2019).  study of acid treatment conditions on the water and moisture absorbency of coconut coir.  - international journal of chemical engineering and applications. 

kamaruzzaman sopian, ali h. a. alwaeli, ali najah al-shamani, a. m. elbreki.  (2019).  thermodynamic analysis of new concepts for enhancing cooling of pv panels for grid-connected pv systems.  - journal of thermal analysis and calorimetry. 

ali h.a. alwaeli, k. sopian, jabar h. yousif, hussein a. kazem, john boland, miqdam t. chaichan.  (2019).  artificial neural network modeling and analysis of photovoltaic thermal system based on the experimental study.  - energy conversion and management. 

a.a. lahimer, k. sopian, a.a. razak, m.h. ruslan. a. alghoul.  (2019).  experimental investigation on the performance of solar chimney for reduction of vehicle cabin soak temperature.  - applied thermal engineering.  247-260. 

ahmad fazlizan, ahmed abdulmula, akmal naim amran, chin haw lim and kamaruzzaman sopian.  (2019).  performance evaluation of maximum light detection solar tracking system in the tropics.  - journal of mechanical science and technology. 

kamaruzzaman sopian, ali h.a. alwaeli, adnan ibrahim, hussein a. kazem.  (2019).  evaluation and design criteria of photovoltaic thermal (pv/t).  - materials today: proceedings.  1111-1119. 

ammar m. abdulateef, abduljalil a. al-abidi, kamaruzzaman sopian, sohif mat, mustafa s. mahdi.  (2019).  a combination of fins-nanoparticle for enhancing the discharging of phasechange material used for liquid desiccant air conditioning unite.  - journal of energy storage.  1-12. 

ahmed abdulmula, kamaruzzaman sopian, lim chin haw.  (2019).  power consumption modeling based on real-time data traffic for balancing power supply and energy demand to develop green telecommunication tower: a case study.  - engineering, technology & applied science research.  4159-4164. 

masoud afrand, amin shahsavar, pouyan talebizadeh sardari, kamaruzzaman sopian, hamzeh salehipour.  (2019).  energy and exergy analysis of two novel hybrid solar photovoltaic geothermal energy systems incorporating a building integrated photovoltaic thermal system and an earth air heat exchanger system.  - solar energy.  83-95. 

nur ifthitah mustafa, norasikin ahmad ludin, norani muti mohamed, mohd adib ibrahim, mohd asri mat teridi, suhaila sepeai, azami zaharim, kamaruzzaman sopian.  (2019).  environmental performance of window-integrated systems using dye sensitised solar module technology in malaysia.  - solar energy.  379-392. 

aisyah bolhan, norasikin ahmad ludin, najah syahirah mohd nor, mohd adib ibrahim, suhaila sepeai, mohd asri mat teridi, kamaruzzaman sopian & azami zaharim.  (2019).  prestasi pemangkin pt/rgo menggunakan teknik susunan berlapis untuk elektrod lawan bagi sel suria terpeka pewarna.  - jurnal kejuruteraan.  115-122. 

a.a. ammar, k. sopian, m. moharaj.  (2019).  photovoltaic thermal solar-assisted heat pump (pv/t sahp) system using r134a as heat removal fluid.  - proceedings of international conference cum exhibition on energy and environment (icee2019).  374-382. 

k. sopian, ali h a alwaeli, hussein a kazem.  (2019).  advanced working fluids in photovoltaic thermal (pv/t) collectors.  - proceedings of international conference cum exhibition on energy and environment (icee2019).  158-164. 

j. assadeg, k. sopian, ahmad fudholi, ali h. a. alwaeli.  (2019).  energetic and exergetic analysis of a new double pass solar air collector with fins and phase change material.  - proceedings of international conference cum exhibition on energy and environment (icee2019).  15-28. 

nurul shahirah binti rukman, ahmad fudholi, ivan taslim, merita ayu indrianti, intan noviantari manyoe, uce lestari, kamaruzzaman sopian.  (2019).  electrical and thermal efficiency of air-based photovoltaic thermal (pvt) systems: an overview.  - indonesian journal of electrical engineering and computer science.  1134-1140. 

nurul shahirah binti rukman, ahmad fudholi, ivan taslim, merita ayu indrianti, intan noviantari manyoe, uce lestari, kamaruzzaman sopian.  (2019).  energy and exergy efficiency of water-based photovoltaic thermal (pvt) systems: an overview.  - international journal of power electronics and drive system.  987-994. 

muhammad yahya zulakmal, ahmad fudholi, nurul shahirah rukman, nurul syakirah nazri, chan hoy yen, nilofar asim, sohif mat, kamaruzzaman sopian.  (2019).  computational fluid dynamics analysis of thermoelectric generators performance under solar photovoltaic-thermal (pvt) system.  - journal of advanced research in fluid mechanics and thermal sciences.  223-232. 

nurul syakirah nazri, ahmad fudholi, wan mustafa, chan hoy yen, masita mohammad, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  exergy and improvement potential of hybrid photovoltaic thermal/thermoelectric (pvt/te) air collector.  - renewable and sustainable energy reviews.  132-144. 

ali h.a. al-waeli, miqdam t. chaichan, k. sopian, hussein a. kazem, hameed b. mahood, anees a. khadom.  (2019).  modeling and experimental validation of a pvt system using nanofluid coolant and nano-pcm.  - solar energy.  178-191. 

m.t. ferdaous, s.a. shahahmadi, p. chelvanathan, md. akhtaruzzaman, f.h. alharbid, k. sopian, s.k. tiong, n. amin.  (2019).  elucidating the role of interfacial mos2 layer in cu2znsns4 thin film solar cells by numerical analysis.  - solar energy. 

nilofar asim, mohammad alghoul, masita mohammad, mohamad hassan amin, m.akhtaruzzaman, nowshad amin, kamaruzzaman sopian.  (2019).  emerging sustainable solutions for depollution: geopolymers.  - construction and building materials. 

ejarder sabbir hossain, puvaneswaran chelvanathan, seyed ahmad shahahmadi, badariah bais, md. akhtaruzzaman, sieh kiong tiong, kamaruzzaman sopian, nowshad amin.  (2019).  fabrication of cu2sns3 thin film solar cells by sulphurization of sequentially sputtered sn/cusn metallic stacked precursors.  - solar energy. 

ahmad fudholi, muhammad zohri, nurul shahirah binti rukman, nurul syakirah nazri, muslizainun mustapha, chan hoy yen, masita mohammad, kamaruzzaman sopian.  (2019).  exergy and sustainability index of photovoltaic thermal (pvt) air collector: a theoretical and experimental study.  - renewable and sustainable energy reviews. 

nurul nazli rosli, mohd adib ibrahim, norasikin ahmad ludin, mohd asri mat teridi, kamaruzzaman sopian.  (2019).  a review of graphene based transparent conducting films for use in solar photovoltaic applications.  - renewable and sustainable energy reviews. 

a.a. razak, z.a.a. majid, f. basrawi, a.f. sharol, m.h. ruslan, k. sopian.  (2019).  a performance and technoeconomic study of different geometrical designs of compact single-pass cross-matrix solar air collector with square-tube absorbers.  - solar energy.  314-330. 

mohammad shakeri, mohsen shayestegan, s.m. salim reza, iskandar yahya, badariah bais, md akhtaruzzaman, kamaruzzaman sopian, nowshad amin.  (2018).  implementation of a novel home energy management system (hems) architecture with solar photovoltaic system as supplementary source.  - renewable energy.  108-120. 

m.t. ferdaous, p. chelvanathan, s.a. shahahmadi, m.m.i. sapeli , k. sopian, n. amin.  (2018).  compositional disparity in cu2znsns4 (czts) thin film deposited by rf-sputtering from a single quaternary compound target.  - materials letters. 

ali h. a. al-waeli, hussein a. kazem, k. sopian, miqdam t. chaichan.  (2018).  techno-economical assessment of grid connected pv/t using nanoparticles and water as base-fluid systems in malaysia.  - international journal of sustainable energy.  558-575. 

nortazi sanusi, azami zaharim, sohif mat, kamaruzzaman sopian.  (2018).  comparison of univariate and bivariate parametric model for wind energy analysis.  - journal of advanced research in fluid mechanics and thermal sciences. 

ali najah al-shamani, m.a. alghoul, a.m. elbreki, a.a. ammar , azher m. abed, k. sopian.  (2018).  mathematical and experimental evaluation of thermal and electrical efficiency of pvt collector using different water based nano-fluids.  - energy.  770-792. 

nortazi sanusi, azami zaharim, sohif mat, kamaruzzaman sopian.  (2018).  a finite mixture von mises distribution for wind direction analysis in kuala terengganu, malaysia.  - international journal of engineering & technology. 

mulyanef, duskiardi, kamaruzzaman sopian, kaidir, zulfika rahman.  (2018).  performance experimental study of solar still with reflector to produce fresh water and salt.  - matec web of conferences volume 248 (2018), 4th engineering science and technology international conference (estic 2018)..  1-6. 

md. akhtaruzzaman;kamaruzzaman sopian;mohd adib bin ibrahim;nowshad amin;mohd asri bin mat teridi;takhirdjon m. razykov.  (2018).  an investigation on the optoelectronic properties of lead (pb) based perovskite and chalcogenide quantum dots in organic-inorganic thin film hetero-junctions.  -

lim chin haw;kamaruzzaman sopian;mohd adib bin ibrahim;norasikin binti ahmad ludin;sohif bin mat;mohd asri bin mat teridi;mohamad yusof bin sulaiman;elias @ ilias bin salleh.  (2018).  advanced concentrated photovoltaic (cpv) system for celcom telecommunication base station.  -

mohd hafidz bin haji ruslan;mohd. yusof bin hj. othman;kamaruzzaman sopian;zahari bin ibarahim;nilofar asim.  (2018).  kajian pemindahan haba oleh aliran udara pada pengumpul fotovoltan terma (pvt) dengan penyerap konfigurasi z.  -

masita binti mohammad;kamaruzzaman sopian;zahira binti yaakob;mohd adib bin ibrahim;norasikin binti ahmad ludin;suhaila binti sepeai.  (2018).  metal/polymer interphases study in aqueous solution on conductive thermoset nanomaterial.  -

nowshad amin;kamaruzzaman sopian;muhammad faiz bin bukhori;iskandar bin yahya;md. akhtaruzzaman;masita binti mohammad.  (2018).  development of non-toxic cu2znsns4 (czts) thin film solar cells and mini modules over 15% conversion efficiency by co-evaporation for versatile application.  -

norasikin binti ahmad ludin;kamaruzzaman sopian;azami bin zaharim;mohd adib bin ibrahim;marlia binti mohd hanafiah;mohd asri bin mat teridi;suhaila binti sepeai;mohd sukor bin su`ait.  (2018).  environmental impact assessment and techno-economic analysis of quantum dot photovoltaic (qdpv).  -

edy herianto;wan ramli bin wan daud;kamaruzzaman sopian;abu bakar bin mohamad;masli irwan bin rosli;loh kee shyuan;t. husaini.  (2018).  reka bentuk dan pembinaan sistem modul pintar 3 kw sel fuel membran pertukaran proton mudah alih pelbagai guna.  -

lim chin haw;kamaruzzaman sopian;mohamad yusof bin sulaiman;elias @ ilias bin salleh.  (2018).  thermal behaviour of radiant barriers in enhancing energy efficiancy and thermal comfort in malaysian buildings.  -

ruhizan bt. mohammad yasin;madeline berma;kamaruzzaman sopian;fariza binti khalid;mohd nizam bin ab rahman.  (2018).  program: rural transformation through net neural renewable energy sustainable community. sub projek: development and implementation of net neutral renewable energy model for rural education & social a.  -

kamaruzzaman sopian;mohd. yusof bin hj. othman;mohd adib bin ibrahim;sohif bin mat;chan hoy yen;mohamad yusof bin sulaiman.  (2018).  program: rural transformation through net neutral renewable energy sustainable community. sub projek: absorption enhancement in nanostructure bifacial solar cell foe diffused sky conditions.  -

shuhib mamat, mohamad faizzi, mohd sukor su'ait, norasikin ahmad ludin, kamaruzzaman sopian, nurul akmaliah dzulkarnain, azizan ahmad, loh kee shyuan, lee tian khoon & daniel brandell.  (2018).  kajian elektrolit polimer berasaskan getah asli terubah suai (mg49) dalam sel suria terpeka pewarna.  - sains malaysiana. 

mohd adib bin ibrahim;kamaruzzaman sopian;zahira binti yaakob;norasikin binti ahmad ludin;mohd asri bin mat teridi;mohamad yusof bin sulaiman.  (2018).  optoelectronic properties of nanofibres cu-based transparent conductive film with graphene additive.  -

baljit singh sarban singh, chan hoy yen, saleem hussain zaidi, kamaruzzaman sopian.  (2018).  part ii: enhanced performance of concentrating photovoltaic- thermal air collector with fresnel lens and compound parabolic concentrator (cpc).  - journal of advanced research in fluid mechanics and thermal sciences. 

hassan ahmoum, mourad boughrara, mohamed kerouad, puvaneswaran chelvanathan, kamaruzzaman sopian, mohd sukor su'ait, lee tian khoon, baohai jia & guojian li.  (2018).  p-type cu2znsns4 as multifunctional material for photovoltaic and thermoelectric application: theoretical investigation.  - jurnal kejuruteraan. 

samir mahmmod ahmad, cheow siu leong, k. sopian, saleem h. zaidi.  (2018).  role of firing temperature, sheet resistance, and contact area in contact formation on screen-printed metal contact of silicon solar cell.  - journal of electronic materials.  2120-2134. 

n. sanusi, a. zaharim, s. mat and k. sopian.  (2018).  bivariate probability model for wind power density analysis: case study.  - arpn journal of engineering and applied sciences.  656-659. 

m.a. alghoul, s.a. shahahmadi, bita yeganeh, nilofar asim, a.m. elbreki, k. sopian, s.k. tiong, n. amin.  (2018).  a review of thermoelectric power generation systems: roles of existing test rigs/ prototypes and their associated cooling units on output performance.  - energy conversion and management. 

idris zulkifle, ali h.a. alwaeli, mohd hafidz ruslan, zahari ibarahim, mohd yusof hj othman, kamaruzzaman sopian.  (2018).  numerical investigation of v-groove air-collector performance with changing cover in bangi, malaysia.  - case studies in thermal engineering. 

mohd norizam md daud, suhaila sepeai, nurul aqidah mohd sinin & kamaruzzaman sopian.  (2018).  development of a phosphorus blade method for emitter formation in bifacial solar cells.  - putra research symposium 2018 (prs 2018). 

kok hoe wong, wen tong chong, nazatul liana sukiman, yui-chuin shiah, sin chew poh, kamaruzzaman sopian, wei-cheng wang.  (2018).  experimental and simulation investigation into the effects of a flat plate deflector on vertical axis wind turbine.  - energy conversion and management.  109-125. 

amanda halim, ahmad fudholi, kamaruzzaman sopian, mohd hafidz ruslan,stephen j. phillips.  (2018).  feasibility study on hybrid solar photovoltaic with diesel generator and battery storage design and sizing using homer pro.  - jurnal kejuruteraan. 

husam abdulrasool hasan, kamaruzzaman sopian, ahmad fudholi.  (2018).  photovoltaic thermal solar water collector designed with a jet collision system.  - energy. 

puteh melor wesma salehen, halim razali, kamaruzzaman sopian, mohd sukor su'ait, lee tian khoon.  (2018).  charge-discharge characteristics improvement through optimization of voltage range for linicomno2 electrode for high energy density lithium ion batteries.  - jurnal kejuruteraan.  229-234. 

kamaruzzaman sopian, ali h a alwaeli, husam abdulrasool hasan, ali najah al-shamani.  (2018).  advances in high efficiency photovoltaic thermal solar collectors.  - journal of advanced research in fluid mechanics and thermal sciences. 

a.a. lahimer, m.a. alghoul, k. sopian, n.g. khrit.  (2018).  potential of solar reflective cover on regulating the car cabin conditions and fuel consumption.  - applied thermal engineering. 

ali h.a. al-waeli, k. sopian, hussein a kazem, miqdam t chaichan.  (2018).  nanofluid based grid connected pv/t systems in malaysia: a technoeconomical assessment.  - sustainable energy technologies and assessments. 

ali h.a. al-waeli, miqdam t. chaichan, hussein a. kazem, k. sopian, javad safaei.  (2018).  numerical study on the effect of operating nanofluids of photovoltaic thermal system (pv/t) on the convective heat transfer.  - case studies in thermal engineering. 

zeki ahmed darwish, hussein, a. kazem, k. sopian, m. a. alghoul, hussain alawadhi.  (2018).  experimental investigation of dust pollutants and the impact of environmental parameters on pv performance: an experimental study.  - environment development and sustainability. 

ali h.a. al-waelia, k. sopian, hussein a. kazem, jabar h. yousif, miqdam t. chaichan, adnan ibrahim, sohif mat, mohd hafidz ruslan.  (2018).  comparison of prediction methods of pv/t nanofluid and nano-pcm system using a measured dataset and artificial neural network.  - solar energy.  378-396. 

muhazri abd mutalib, norasikin ahmad ludin, nik ahmad aizudden nik ruzalman, vincent barrioz, suhaila sepeai, mohd asri mat teridi, mohd sukor suait, mohd adib ibrahim, kamaruzzaman sopian.  (2018).  progress towards highly stable and lead free perovskite solar cells.  - material for renewable and sustainable energy. 

nurul aqidah mohd sinin, mohd adib ibrahim, suhaila sepeai, mohd asri mat teridi, norasikin ahmad ludin, kamaruzzaman sopian & saleem h. zaidi.  (2018).  kebergantungan suhu dengan penggunaan tiub kuarza relau ke atas sel suria dwi-muka.  - sains malaysiana. 

saba a. salih, sohif mat and k. sopian.  (2018).  optimization of 300 watt vertical axis wind turbine for low wind speed regions: a case study of malaysia.  - research journal of applied sciences, engineering and technology. 

nurul syakirah nazri, ahmad fudholi, bardia bakhtyar, can hoy yen, adnan ibrahim, mohd hafidz ruslan, sohif mat, kamaruzzaman sopian.  (2018).  energy economic analysis of photovoltaic-thermal-thermoelectric (pvt-te) air collectors.  - renewable and sustainable energy reviews. 

monadhil al-chaderchi, k. sopian, t. salameh, d. zhang, m. a. alghoul.  (2018).  enhancing the performance of pv panel undergoing shading effects.  - international journal of power electronics and drive system (ijpeds). 

b. elhub, sohif mat, k. sopian, a.m. elbreki, mohd hafidz ruslan, a.a. ammar.  (2018).  performance evaluation and parametric studies on variable nozzle ejector using r134a.  - case studies in thermal engineering. 

husam abdulrasool hasan, kamaruzzaman sopian, kayser aziz ameen.  (2018).  numerical investigation of microjet impingement of water for cooling photovoltaic solar cell.  - journal of advanced research in fluid mechanics and thermal sciences. 

nurul syakirah nazri, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  mathematical modeling of photovoltaic thermalthermoelectric (pvt-te) air collector.  - international journal of power electronics and drive system (ijpeds). 

ahmad fudholi, kamaruzzaman sopian.  (2018).  r&d of photovoltaic thermal (pvt) systems: an overview.  - international journal of power electronics and drive system (ijpeds). 

mohd azman che mat isa, kamaruzaman sopian, sohif mat, halim razali.  (2018).  efficiency of the rocking kiln- fluidised bed for charcoal production.  - jurnal kejuruteraan.  81-86. 

towhid h. chowdhury, ryuji kaneko, md. emrul kayesh, md. akhtaruzzaman, kamaruzzaman bin sopian, jae-joon lee, ashraful islam.  (2018).  nanostructured niox as hole transport material for low temperature processed stable perovskite solar cells.  - materials letters.  109-111. 

m. a. m. rosli, s. mat, k. sopian, e. salleh and m. k. a. sharif.  (2018).  experimental development to determine time constant for polymer collector.  - arpn journal of engineering and applied sciences.  1523-1527. 

husam abdulrasool hasan, zainab alquziweeni, kamaruzzaman sopian.  (2018).  heat transfer enhancement using nanofluids for cooling a central processing unit (cpu) system.  - journal of advanced research in fluid mechanics and thermal sciences. 

nur ezyanie safie, norasikin ahmad ludin*, norul hisham hamid, mohd sukor suait, mohd asri mat-teridi, suhaila sepeai, mohd adib ibrahim, kamaruzzaman sopian, hironori arakawa.  (2018).  co-sensitization of natural sensitizers extracted from rengas (gluta spp.) and mengkulang (heritiera elata) wood with ruthenium dye (n719) to enhance the performance of dye-sensitized solar cells.  - malaysian journal of analytical sciences.  95-106. 

norshazlinah abdul karim, norasikin ahmad ludin*, mohd asri mat-teridi, suhaila sepeai, mohd adib ibrahim, m. kouhnavard, kamaruzzaman sopian, hironori arakawa.  (2018).  effect of deposition time on of cobalt sulfide thin film electrode formation.  - malaysian journal of analytical sciences.  80-86. 

towhid hossain chowdhury, mohammad tanvirul ferdaous, mohd. aizat abdul wadi, puvaneswaran chelvanathan, nowshad amin, ashraful islam, nurhafiza kamaruddin, muhammad irsyamuddin m. zin, mohd hafidz ruslan, kamaruzzaman bin sopian and md. akhtaruzzaman.  (2018).  prospects of ternary cd1xznxs as an electron transport layer and associated interface defects in a planar lead halide perovskite solar cell via numerical simulation.  - journal of electronic materials.  3051-3058. 

ahmad fudholi, lim chin haw , kamaruzzaman sopian, ahmed mohamed omer abdulmula.  (2018).  a primary study of tracking photovoltaic system for mobile station in malaysia.  - international journal of power electronics and drive system.  427-432. 

mashasriyah ismail, norasikin ahmad ludin, norul hisham hamid, mohd adib ibrahim, kamaruzzaman sopian.  (2018).  the effect of chenodeoxycholic acid (cdca) in mangosteen (garcinia mangostana) pericarps sensitizer for dyesensitized solar cell (dssc).  - 6th international conference of solid state science and technology and workshop on advanced materials technology: growth and characterization, icssst amtgc 2017. 

n. n. rosli, m. a. ibrahim, m. a. mat teridi, n. ahmad ludin and k. sopian.  (2018).  optical and electrical properties of cu-based thin films by aerosol assisted chemical vapor deposition.  - asm science journal. 

suhaimi misha, sohif mat, mohd hafidz ruslan, elias salleh, kamaruzzaman sopian.  (2018).  a study of drying uniformity in a new design of tray dryer.  - journal of advanced research in fluid mechanics and thermal sciences. 

mohamed atta elmanan bakhit alhaj and kamaruzzaman sopian.  (2018).  techno-economic study of photovoltaics and dish stirling engines for decentralised power generation in sudan: part 1: overview and methodology.  - international journal of sudan research. 

n. samsudin, m.t. ferdaous, s.a. shahahmadi, s.n. mustafa, md. akhtaruzzaman, k. sopian, p. chelvanathan, n. amin.  (2018).  deposition and characterization of rf-sputtered-ta2o5 thin films for o2 reduction reaction in polymer electrolyte membrane fuel cells (pemfc).  - optik - international journal for light and electron optics. 

mohd afzanizam mohd rosli, yap joon ping, suhaimi misha, mohd zaid akop, kamaruzzaman sopian, sohif mat, ali najah al-shamani, muhammad asraf saruni.  (2018).  simulation study of computational fluid dynamics on photovoltaic thermal water collector with different designs of absorber tube.  - journal of advanced research in fluid mechanics and thermal sciences. 

ahmed abdulmula, kamaruzzaman sopian & lim chin haw.  (2018).  optimal sizing of hybrid power system for telecommunication towers in off-grid site using homer pro: a case study.  - proceedings of the international conference on resilient smart technology, environment and design 2018 (rested 2018). 

mohsen shayestegan, mohammad shakeri, hamza abunima, s.m. salim reza, m. akhtaruzzaman, badariah bais, sohif mat, kamaruzzaman sopian, nowshad amin.  (2018).  an overview on prospects of new generation single-phase transformerless inverters for grid-connected photovoltaic (pv) systems.  - renewable & sustainable energy reviews.  515-530. 

ahmad fudholi, kamaruzzaman sopian.  (2018).  review on solar collector for agricultural produce.  - international journal of power electronics and drive system (ijpeds).  414-419. 

ali.f. muftah, k. sopian,m.a. alghoul.  (2018).  performance of basin type stepped solar still enhanced with superior design concepts.  - desalination.  198-209. 

nurul shahirah binti rukman, ahmad fudholi, saleem h. zaidi, kamaruzzaman sopian.  (2018).  overview of bifluid-based photovoltaic thermal (pvt) systems.  - international journal of power electronics and drive system (ijpeds). 

ahmad fudholi, abrar ridwan, rado yendra, ari pani desvina, hartono, majid khan bin majahar ali, tri suyono, kamaruzzaman sopian.  (2018).  solar drying technology in indonesia: an overview.  - international journal of power electronics and drive system (ijpeds). 

ahmad fudholi, nur farhana mohd razali, abrar ridwan, rado yendra, hartono, ari pani desvina, majid khan bin majahar ali, kamaruzzaman sopian.  (2018).  overview of photovoltaic thermal (pvt) water collector.  - international journal of power electronics and drive system (ijpeds). 

ahmad fudholi, kamaruzzaman sopian.  (2018).  review on exergy and energy analysis of solar air heater.  - international journal of power electronics and drive system (ijpeds).  420-426. 

m.yahya, hendriwan fahmi, ahmad fudholi, kamaruzzaman sopian.  (2018).  performance and economic analyses on solar-assisted heat pump fluidised bed dryer integrated with biomass furnace for rice drying.  - solar energy. 

alsanossi m. aboghrara, m. a. alghoul, b. t. h. t. baharudin, a. m.elbreki,a. a. ammar, k. sopian, and a. a. hairuddin.  (2018).  parametric study on the thermal performance and optimal design elements of solar air heater enhanced with jet impingement on a corrugated absorber plate.  - international journal of photoenergy.  1-21. 

kamaruzaman sopian, halim razali.  (2018).  tenaga keterbaharuan : revolusi teknologi hijau di malaysia.  - 155. 

m.s. jamala, m.s. bashar, a.k. mahmud hasan, zeyad a. almutairi, hamad f. alharbi, nabeel h. alharthi, mohammad r. karim, h. misran, nowshad amin, kamaruzzaman bin sopian, md. akhtaruzzaman.  (2018).  fabrication techniques and morphological analysis of perovskite absorber layer for high-efficiency perovskite solar cell: a review.  - renewable and sustainable energy reviews. 

samir mahmmod ahmad, cheow siu leong, richard w. winder, k. sopian & saleem h. zaidi.  (2018).  a phenomenological model of the screen printed, silver paste contact to si substrate.  - journal of electronic materials. 

ammar m. abdulateef, sohif mat, jasim abdulateef, kamaruzzaman sopian, abduljalil a. al-abidia.  (2018).  geometric and design parameters of fins employed for enhancing thermal energy storage systems: a review.  - renewable and sustainable energy reviews.  1620-1635. 

poorya ooshaksaraei, khalid mokhtar, syed zulklifi syed zakaria & kamaruzzaman sopian.  (2018).  renewable energy in developing countries: local development and techno-economic aspects.  - 20. 

suhaila abdul hamid, hoy-yen chan, ah choy er, wong chin yew & kamaruzzaman sopian.  (2018).  renewable energy in developing countries: local development and techno-economic aspects.  - 12. 

hoy-yen chan & kamaruzzaman sopian.  (2018).  renewable energy in developing countries: local development and techno-economic aspects.  - 189. 

adnan ibrahim, sohif mat, ahmad fazlizan abdullah, ahmad fudholi, kamaruzzaman sopian.  (2018).  outdoor performance evaluation of building integrated photovoltaic thermal (bipvt) solar collector with spiral flow absorber configurations.  - international journal of power electronics and drive systems (ijpeds). 

ali h. a. alwaeli, kamaruzzaman sopian, adnan ibrahim, sohif mat & mohd hafidz ruslan.  (2018).  application of nanofluids and phase change material (pcm) in photovoltaic thermal (pv/t) collectors.  - the 2 malaysia university industry green building collaboration symposium (muigbc 2018). 

ag sufiyan abd hamid, adnan ibrahim, sohif mat, mohd hafidz ruslan, kamaruzzaman sopian & siti nur aniza mohamad jilani.  (2018).  preliminary evaluation of kenaf fibre using solar drying chamber.  - the 2 malaysia university industry green building collaboration symposium (muigbc 2018). 

a. bolhan, n. a. ludin*, , m. s. suait, m. a. mat-teridi, k. sopian, norani muti mohamed, h. arakawa.  (2018).  enhancing the performance of dye-sensitized solar cells by incorporating various ratios of platinum and reduced graphene oxide thin film as a counter electrode.  - malaysian journal of catalysis.  29-31. 

nurul syakirah nazri, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  experimental study of photovoltaic thermal-thermoelectric (pvt-te) air collector.  - international journal of power electronics and drive system (ijpeds). 

muslizainun mustapha, ahmad fudholi, chan hoy yen, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  review on energy and exergy analysis of air and water based photovoltaic thermal (pvt) collector.  - international journal of power electronics and drive system (ijpeds). 

amanda halim, ahmad fudholi, stephen phillips, kamaruzzaman sopian.  (2018).  review on optimised configuration of hybrid solar-pv diesel system for off-grid rural electrification.  - international journal of power electronics and drive system (ijpeds). 

m.s. suait, f.j. jumaah, m. faizal, n.n. mobarak, k.h. badri, a. ahmad, n.a. ludin, k. sopian, a.d. jodlowski & m.k. nazeeruddin.  (2018).  high performance solid-state dye-sensitized solar cell using bio-based polyurethane polycation.  - international symposium of polymer electrolytes 2018. 

norasikin ahmad ludin, nur ifthitah mustafa, marlia m. hanafiah, mohd adib ibrahim, mohd asri mat teridi, suhaila sepeai, azami zaharim, kamaruzzaman sopian.  (2018).  prospects of life cycle assessment of renewable energy from solar photovoltaic technologies: a review.  - renewable and sustainable energy reviews. 

ameen m. ali, yulisa yusoff, lamya m. ali, halina misran, md. akhtaruzzaman, mohammad a. alghoul, kamaruzzaman sopian, shahidan radiman, nowshad amin.  (2018).  synthesis of sphere-like-crystal cds powder and thin films using chemical residue in chemical bath deposition (cbd) for thin film solar cell application.  - solar energy. 

ammar m. abdulateef, jasim abdulateef, sohif mat, kamaruzzaman sopian, bashir elhub, munther abdullah mussa.  (2018).  experimental and numerical study of solidifying phase-change material in a triplex-tube heat exchanger with longitudinal/triangular fins.  - international communications in heat and mass transfer.  73-84. 

norasikin a. ludin, mahmoud a.m. al-alwani, abu bakar mohamad, abd. amir h.kadhum, norul hisham hamid, mohd adib ibrahim, mohd asri mat teridi, tarik m. ali al-hakeem, abduljabbar mukhlus, kamaruzzaman sopian.  (2018).  utilization of natural dyes from zingiber officinale leaves and clitoria ternatea flowers to prepare new photosensitisers for dye-sensitised solar cells.  - international journal of electrochemical science. 

muhd hatim rohaizar, suhaila sepeai, m.k.m.desa, n.a.ludin, m.a.ibrahim, k.sopian & saleem h.zaidi.  (2018).  modeling of bifacial solar cell on partial transparent si wafer by silvaco software.  - e-proceedings of the 2nd malaysia university-industry green building collaboration symposium (mu-igbc 2018). 

norasikin ahmad ludin, mirratul mukminah junedi, nurfarhana alyssa ahmad affandi, mohd adib ibrahim, kamaruzzaman sopian, mohd asri mat teridi, suhaila sepeai, mohd sukor suait & lim chin haw.  (2018).  the need for a sustainable hospital: why and how?.  - the 2nd malaysia university: industry green building collaboration symposium (mu igbc 2018). 

ahmed abdulmula, kamaruzzaman sopian, lim chin haw & ahmad fazlizan.  (2018).  the effect of haze on the performance of a double axis photovoltaic solar tracking system with maximum light detection (mld) in malaysia.  - the 2nd malaysia university: industry green building collaboration symposium (mu igbc 2018). 

alkhair m., c.h. lim & k. sopian.  (2018).  experimental investigation of cycle and transient time effect of solar assisted adsorption air conditioning system.  - the 2nd malaysia university: industry green building collaboration symposium (mu igbc 2018). 

chin haw lim, kamaruzzaman sopian, seong aun chan, kok leong von & adeline ong yuk ting.  (2018).  the impact of air gaps on the performance of reflective insulations and radiant barriers.  - the 2nd malaysia university: industry green building collaboration symposium (mu igbc 2018). 

n.g. khrit, k.sopian, m. alghoul, ch lim, n.l.n. ibrahim & a.m. elberki..  (2018).  comparison of measured and modelled mean radiant temperature in the tropical urban environment.  - the 2nd malaysia university - industry green building collaboration symposium (mu - igbc 2018). 

ashraful islam, towhid h. chowdhury, chuanjiang qin, liyuan han, jae-joon lee, idriss m. bedja, md. akhtaruzzaman, kamaruzzaman sopian, antoine mirloupeand nicolas leclerc.  (2018).  panchromatic absorption of dye sensitized solar cells by co-sensitization of triple organic dyes.  - sustainable energy & fuels.  209-214. 

azman hussin, lim chin haw, kamaruzzaman sopian & elias salleh.  (2018).  energy usage and energy saving potential of airconditioning mosque in penang malaysia.  - the 2nd malaysia university - industry green building collaboration symposium (mu - igbc 2018) energising green buildings. 

azman hussin, lim chin haw, elias salleh & kamaruzzaman sopian.  (2018).  energy usage and energy saving potential of air conditoning mosques in penang malaysia.  - the 2nd malaysia university-industry green building collaboration symposium (mu-igbc 2018) energising green buildings. 

nor liyana muhammad abu kari, halim razali, kamaruzzaman sopian, mohd sukor su'ait , lee tiankhoon & afida ayob.  (2018).  a brief overview: intelligent battery management system for lithium-ion battery in electric vehicle.  - the 2nd malaysia university-industry green building collaboration symposium (mu-igbc 2018). 

cheku nurul aisyah, ahmad fudholi, mohd yusof othman, adnan ibrahim, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  kecekapan pengumpul pv/t menggunakan pengumpul terma reka bentuk pilin (efficiency of pv/t collector using spiral thermal absorber design).  - sains malaysiana. 

idris zulkifle, mohd hafidz hj ruslan, mohd. yusof hj othman, zahari ibarahim, kamaruzzaman sopian.  (2018).  pengeringan asam gelugur (garcinia atroviridis) menggunakan sistem pengering suria.  - jurnal teknologi (sciences & engineering). 

siti noor amirah1, ahmad fudholi2, mohd hafidz ruslan2, kamaruzzaman sopian2, zahari ibarahim1 & mohd syahriman mohd azmi1.  (2018).  pengeringan pegaga menggunakan sistem pengeringan suria dan pengeringan terbuka.  - undergraduate research journal for applied physics and novel materials. 

m.m.i. sapeli, m.t. ferdaous, s.a. shahahmadi, k. sopian, p. chelvanathan , n. amin.  (2018).  effects of cr doping in the structural and optoelectronic properties of cu2znsns4 (czts) thin film by magnetron co-sputtering.  - materials letters.  22-25. 

ali h. a. alwaeli, kamaruzzaman sopian, adnan ibrahim, sohif mat, mohd hafidz ruslan.  (2018).  concepts and challenges of nanofluids and phase change material (pcm) in photovoltaic thermal (pv/t) collectors: a review.  - jurnal kejuruteraan. 

p. chelvanathan, s.a. shahahmadi, m.t. ferdaous, m.m.i. sapeli , k. sopian , n. amin.  (2018).  controllable formation of mos2 via preferred crystallographic orientation modulation of dc-sputtered mo thin film.  - materials letters.  174-177. 

idris zulkifle , mohd hafidz ruslan, mohd. yusof hj othman, zahari ibarahim , kamaruzzaman sopian.  (2018).  the v-groove solar collector performance using fresnel lens and glass glazing.  - journal of engineering and applied sciences. 

ahmad fudholi, muhammad zohri, goh li jin, adnan ibrahim, chan hoy yen, mohd yusof othman, mohd hafidz ruslan & kamaruzzaman sopian.  (2018).  energy and exergy analyses of photovoltaic thermal collector with v-groove.  - solar energy.  742-750. 

mohd yusof hj othman, kamaruzzaman sopian, mohd hafidz ruslan, sohif mat & suhaila abdul hamid.  (2018).  evolution of photovoltaic thermal hybrid solar technology for the tropics a case study of malaysia.  - world renewable energy congress wrec xviii renewable energy & sustainable buildings are the best solution for climate change. 

kamaruzzaman sopian, ali h. a. alwaeli, ali najah al-shamani & mohd yusof othman.  (2018).  cooling of pv panels for performance enhancement of grid connected systems.  - world renewable energy congress wrec xviii renewable energy & sustainable buildings are the best solution for climate change. 

ahed hameed jaaz, kamaruzzaman sopian, tayser sumer gaaz.  (2018).  study of the electrical and thermal performances of photovoltaic thermal collector-compound parabolic concentrated.  - results in physics.  500-510. 

nilofar asim, zeynab emdadi, n a abdullah, masita mohammad, marzieh badiei, kamaruzzaman sopian.  (2017).  study of pyrolysed acid and based treated coconut coir as green photocatalyst substrate.  - 3rd international conference on smart material research, icsmr 2017(iop conference series: materials science and engineering). 

masita mohammad, sabariah kamarudin, nur hasimah mohamed, nilofar asim and kamaruzzaman sopian.  (2017).  homogenization effect on nanostructure and conductivity of polyaniline nanofibre synthesis by mini-emulsion polymerization technique.  - 3rd international conference on smart material research, icsmr 2017; (iop conference series: materials science and engineering). 

masita mohammad, ibrahim yakub, zahira yaakob, nilofar asim and kamaruzzaman sopian.  (2017).  adsorption isotherm of chromium (vi) into zncl2 impregnated activated carbon derived by jatropha curcas seed hull.  - 3rd international conference on smart material research, icsmr 2017 (iop conf. series: materials science and engineering). 

nur ezyanie safie, norasikin ahmad ludin, norul hisham hamid, suhaila sepeai, mohd asri mat teridi, mohd adib ibrahim, kamaruzzaman sopian, hironori arakawa.  (2017).  energy levels of natural sensitizers extracted from rengas (gluta spp.) and mengkulang (heritiera elata) wood for dye-sensitized solar cells.  - materials for renewable and sustainanble energy.  1-9. 

kamaruzzaman sopian, husam abdulrasool hasan , ali najah al-shamani, azher m. abed,m.m.s.dezfouli, b.elhub & a.m.elbreki.  (2017).  numerical investigations on heat transfer enhancement by using sio2water nanofluid in a parabolic trough solar collector.  - proceeding of the 3rd engineering science and technology international conference (estic) 2016, padang indonesia. 

m. yahya, ahmad fudholi, kamaruzzaman sopian.  (2017).  energy and exergy analyses of solar-assisted fluidized bed drying integrated with biomass furnace.  - renewable energy.  22-29. 

muhammad zohri, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2017).  performance analysis of photovoltaic thermal (pvt) with and without v-groove collector.  - journal of engineering and applied sciences.  6029-6032. 

azhar ghazali, elias salleh, lim chin haw, sohif mat and kamaruzzaman sopian.  (2017).  feasibility of a vertical photovoltaic system on a high-rise building in malaysia: economic evaluation.  - internationa of low carbon technologies.  349-357. 

p. m.w. salehen, h. razali, k. sopian, t. k. lee & m. s. suait.  (2017).  optimization of charge-discharge characteristic of lithium cobalt nickel manganese oxide for high-energy density lithium-ion batteries.  - 2nd international conference on sustainable mobility. 

nur ezyanie safie,norasikin ahmad ludin, norul hisham hamid, paridah md. tahir, mohd asri mat teridi, suhaila sepeai, mohd adib ibrahim, and kamaruzzaman sopian.  (2017).  electron transport studies of dye-sensitized solar cells based on natural sensitizer extracted from rengas (gluta spp.) and mengkulang (heritiera elata) wood..  - bioresources.  9227-9243. 

azami zaharim, sohif mat, kamaruzzaman sopian, alias jedi, muhammad aslam mohd safari, nurulkamal masseran & azman bin abdul rahim.  (2017).  public acceptance on stand-alone renewable energy project in rural area of malaysia.  - 2017 international conference in energy and sustainability in small developing economies (es2de).  1-6. 

wan zulhafizhazuan, suhaila sepeai, cheow siu leong, kamaruzzaman sopian , saleem h. zaidi.  (2017).  performance analysis of simplified silicon solar cell on p-type crystalline silicon wafer.  - malaysian journal analytical sciences.  1127-1133. 

ejarder sabbir hossain, puvaneswaran chelvanathan, seyed ahmad shahahmadi, kamaruzzaman sopian, badariah bais, nowshad amin.  (2017).  performance assessment of cu2sns3 (cts) based thin film solar cells by amps-1d.  - current applied physics.  79-89. 

nurfarizza surhada mohd nasir, suhaila sepeai, cheow siu leong, kamaruzzaman sopian, saleem h.zaidi.  (2017).  infra-red investigation on silicon solar cells.  - malaysian journal of analytical sciences.  1134-1142. 

m.b. azwan, a.l. norasikin, k. sopian, s. abd rahim, k. norman, k. ramdhan, d. solah.  (2017).  assessment of electric vehicle and photovoltaic integration for oil palm mechanisation practise.  - journal of cleaner production.  1365-1375. 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian.  (2017).  a review of combustion-driven thermoelectric (te) and thermophotovoltaic (tpv) power systems.  - renewable and sustainable energy reviews.  572-584. 

nortazi sanusi, azami zaharim, sohif mat & kamaruzzaman sopian.  (2017).  a weibull and finite mixture of the von mises distribution for wind analysis in mersing, malaysia.  - international journal of green energy.  1057-1062. 

k. sopian, b. elhub, sohif mat, a. n. al-shamani, am elbreki, azher m. abed, husam abdulrasool, hasan and m. m. s. dezfouli.  (2017).  effect of the nozzle exit position on the efficiency of ejector cooling system using r134a.  - arpn journal of engineering and applied sciences.  5245-5250. 

m. m. s. dezfouli, k. sopian, ali najah al-shamani, husam abdulrasool hasan, azher m. abed, a. melbreki, b. elhub and sohif mat.  (2017).  energy saving potential of solar cooling systems in hot and humid region.  - arpn journal of engineering and applied sciences.  5241-5244. 

ali h.a. al-waeli, k. sopian, miqdam t. chaichan, hussein a. kazem, adnan ibrahim, sohif mat, mohd hafidz ruslan.  (2017).  evaluation of the nanofluid and nano-pcm based photovoltaic thermal (pvt) system: an experimental study.  - energy conversion and management.  693-708. 

mahmoud a. m. al alwani, abu bakar mohamad, abdul amir h. kadhum, norasikin a. ludin, n.e. safie, m.z. razali, m. ismail, kamaruzzaman sopian.  (2017).  natural dye extracted from pandannus amaryllifolius leaves as sensitizer in fabrication of dye sensitized solar cells.  - international journal of electrochemical sciences.  747-761. 

azami zaharim, sohif mat, kamaruzzaman sopian, alias jedi, nurulkamal masseran & muhammad aslam mohd safari.  (2017).  the impact of wind technology among rural community in mersing malaysia.  - 2017 international conference in energy and sustainability in small developing economies (es2de).  1-6. 

ammar m. abdulateef, sohif mat, kamaruzzaman sopian, jasim abdulateef, ali a. gitan.  (2017).  experimental and computational study of melting phase-change material in a triplex tube heat exchanger with longitudinal/triangular fins.  - solar energy.  142-153. 

samir mahmmod ahmad, siu leong cheow , norasikin a. ludin, k. sopian, saleem h. zaidi.  (2017).  in depth investigation of spin on doped solar cells with thermally grown oxide passivation.  - results in physics.  2183-2193. 

ahed hameed jaaz, husam abdulrasool hasan, kamaruzzaman sopian, abdul amir h. kadhum, tayser sumer gaaz and ahmed a. al-amiery.  (2017).  outdoor performance analysis of a photovoltaic thermal (pvt) collector with jet impingement and compound parabolic concentrator (cpc).  - materials.  1-16. 

p. chelvanathan, s.a. shahahmadi, f. arith, k. sobayel, m. aktharuzzaman, k. sopian, f.h. alharbi, n. tabet, n. amin.  (2017).  effects of rf magnetron sputtering deposition process parameters on the properties of molybdenum thin films.  - thin solid films.  213-219. 

s. m. ahmad, c.s. leong, k. sopian, s.h. zaidi.  (2017).  performance evaluation of screen-printed c-si solar cells fabricated by the simple and low-cost process.  - digest journal of nanomaterials and biostructures.  495-506. 

ali h.a. al-waeli, miqdam t. chaichan, hussein a. kazem, k. sopian.  (2017).  comparative study to use nano-(al2o3, cuo, and sic) with water to enhance photovoltaic thermal pv/t collectors.  - energy conversion and management.  963-973. 

azher m. abed, k. sopian, m.a. alghoul, hasan sh. majadi, ali najah al-shamani.  (2017).  experimental evaluation of single stage ejector absorption cooling cycle under different design configurations.  - solar energy.  130-141. 

kamaruzzaman sopian, sohif mat, mohd hafidz ruslan and azher m. abed.  (2017).  compact high efficiency solar cooling system.  - innovation & commercialisation conference 2017 (iccon2017). 

kamaruzzaman sopian, sohif mat, mohd hafidz ruslan, ali najah alshamani.  (2017).  cost competitive photovoltaic thermal solar panel for building integrated and grid connected application.  - innovation & commercialisation conference 2017 (iccon2017). 

p. m.w. salehen, h. razali, k. sopian, t. k. lee, m. s. suait.  (2017).  evaluation of charge-discharge characteristic of lithium cobalt nickel manganese oxide for high-energy density lithium-ion batteries.  - journal of the society of automotive engineers malaysia (jsaem).  183-190. 

kamaruzzaman sopian, azami zaharim, sohif mat, ahmad fazlizan, alias jedi, nurulkamal maseran, muhammad aslam mohd safari & azman abdul rahim.  (2017).  the theoretical framework of smart energy management system for rural area in mersing malaysia.  - 2017 international conference in energy and sustainability in small developing economies (es2de).  1-5. 

muhammad zohri, ahmad fudholi, mohd hafidz ruslan & kamaruzzaman sopian.  (2017).  mathematical modeling of photovoltaic thermal pv/t system with v-groove collector.  - international symposium on current progress in mathematics and sciences 2016 (iscpms 2016), aip conference proceedings.  1-7. 

mashasriyah ismail, norasikin ahmad ludin , mohd adib ibrahim, norul hisham hamid, mohd syafiq zulfakar, norani muti mohamed and kamaruzzaman sopian.  (2017).  characterizations of natural dye from garcinia mangostana with graphene oxide (go) as sensitizer in dye-sensitizer solar cells.  - the 1st ukm-isesco-comsats international workshop on nanotechnology for young scientists (iwys2016), aip conference proceeding.  1-7. 

s.s.s. baljit, h. y. chan, v.a. audwinto, s.a. hamid, ahmad fudholi, s.h. zaidi, m.y. othman, k. sopian.  (2017).  mathematical modelling of a dual-fluid concentrating photovoltaic thermal (pv-t) solar collector.  - renewable energy.  1258-1271. 

zeynab emdadi, nilofar asim, mohamad hassan amin, mohd ambar yarmo, ali maleki , mojtaba azizi and kamaruzzaman sopian.  (2017).  development of green geopolymer using agricultural and industrial waste materials with high water absorbency.  - applied sciences.  1-15. 

zeynab emdadi, nilofar asim, mohd ambar yarmo, mehdi ebadi, masita mohammad and kamaruzzaman sopian.  (2017).  chemically treated rice husk blends as green desiccant materials for industrial application.  - chemical engineering & technology.  1619-1629. 

kamaruzzaman sopian, suhaila abdul hamid, baljit singh sarban singh, mohd yusof othman, chan hoyyen & saleem h. zaidi.  (2017).  performance of double pass pv/t combi solar collector with cpc: theoretical approach.  - proc of international conference in energy and sustainability in small developing economies (es2de). 

azhar ghazali, elias salleh, lim chin haw, sohif mat, kamaruzzaman sopian.  (2017).  performance and financial evaluation of various photovoltaic vertical facades on highrise building in malaysia.  - energy and buildings.  306-318. 

nurfarizza surhada mohd nasir, nurul aqidah mohd sinin, suhaila sepeai, cheow siu leong, kamaruzzaman sopian, saleeem h. zaidi.  (2017).  investigation near ir absorption in thin crystalline si wafers with randomly etched nano-pillarsestigation.  - the 1st ukm-isesco-comsats international workshop on nanotechnology for young scientists (iwys2016), aip conference proceeding.  20001-20008. 

puteh melor wesma bt. salehen, mohd.sukor suait, halim razali, kamaruzzaman sopian.  (2017).  development of battery management systems (bms) for electric vehicles (evs) in malaysia.  - matec web of conferences.  1-8. 

b. bakhtyar, a. fudholi, kabir hassan, m. azam, c.h. lim, n.w. chan, k. sopian.  (2017).  review of co2 price in europe using feed-in tariff rates.  - renewable and sustainable energy reviews.  685-691. 

azhar ghazali, elias @ ilias salleh, lim chin haw, sohif mat, kamaruzzaman sopian.  (2017).  feasibility of vertical photovoltaic system on high-rise building in malaysia: performance evaluation.  - international journal of low carbon technologies.  263-271. 

p. m. w. salehen, m. s. su`ait, h. razali, and k. sopian.  (2017).  battery management systems (bms) optimization for electric vehicles (evs) in malaysia.  - 7th international conference on mechanical and manufacturing engineering,aip conference proceedings.  20031. 

suhaila sepeai, wan zulhafizhazuan, cheow siu leong, n.a .ludin, m.a.ibrahim, k.sopian, saleem h.zaidi.  (2017).  analisis arus-voltan bagi pengubahsuaian proses fabrikasi sel suria silikon jenis-p ke atas wafer silikon jenis-n.  - sains malaysiana.  1943-1949. 

ali h. a. al-waeli, k. sopian, hussein a kazem and miqdam t chaichan.  (2017).  photovoltaic thermal pv/t systems: a review.  - international journal of computation and applied sciences.  62-67. 

m.w. kareem, khairul habib, k. sopian, m.h. ruslan.  (2017).  multi-pass solar air heating collector system for drying of screw-pine leaf (pandanus tectorius).  - renewable energy.  413-424. 

poorya ooshaksaraei, kamaruzzaman sopian, saleem h. zaidi, rozli zulkifli.  (2017).  performance of four air based photovoltaic thermal collectors configurations with bifacial solar cells.  - renewable energy.  279-293. 

nur izzati abdul aziz, shahril irwan sulaiman, sulaiman shaari, ismail musirin, kamaruzzaman sopian.  (2017).  optimal sizing of stand-alone photovoltaic system by minimizing the loss of power supply probability.  - solar energy.  220-228. 

ali najah al-shamani, k. sopian, sohif mat, azher m. abed.  (2017).  performance enhancement of photovoltaic grid-connected system using pvt panels with nanofluid.  - solar energy.  38-48. 

ali h.a. al-waelia, k. sopian, hussein a. kazem, miqdam t. chaichan.  (2017).  photovoltaic thermal (pv/t) systems: status and future prospects.  - renewable and sustainable energy reviews.  109-130. 

adnan ali, s.l. cheow, a.w. azhari , k. sopian, saleem h. zaidi.  (2017).  enhancing crystalline silicon solar cell efficiency with sixge1x layers.  - results in physics.  225-232. 

ameen m. ali, k.s. rahman, lamya m. ali, m. akhtaruzzaman, k. sopian, s. radiman, n. amin.  (2017).  a computational study on the energy bandgap engineering in performance enhancement of cdte thin film solar cells.  - results in physics.  1066-1072. 

ali h.a. al-waeli, k. sopian, miqdam t. chaichan, hussein a. kazem , husam abdulrasool hasan and ali najah al-shamani.  (2017).  an experimental investigation of sic nanofluid as a base-fluid for a photovoltaic thermal pv/t system.  - energy conversion and management.  547-558. 

ahed hameed jaaz, husam abdulrasool hasan, kamaruzzaman sopian, mohd hafidz bin haji ruslan, saleem hussain zaidi.  (2017).  design and development of compound parabolic concentrating for photovoltaic solar collector: review.  - renewable and sustainable energy reviews.  1108-1121. 

mahmoud a.m. al-alwani, norasikin a. ludin, abu bakar mohamad, abd. amir h. kadhum, kamaruzzaman sopian.  (2017).  extraction, preparation and application of pigments from cordyline fruticosa and hylocereus polyrhizus as sensitizers for dye-sensitized solar cells.  - spectrochimica acta part a: molecular and biomolecular spectroscopy.  23-31. 

husam abdulrasool hasan, kamaruzzaman sopian, ahed hameed jaaz, ali najah al-shamani.  (2017).  experimental investigation of jet array nanofluids impingement in photovoltaic/thermal collector.  - solar energy.  321-334. 

mohammad shakeri, mohsen shayestegan, hamza abunima, s.m. salim reza,m. akhtaruzzaman, a.r.m. alamoud, kamaruzzaman sopian, nowshad amin.  (2017).  an intelligent system architecture in home energy management systems (hems) for efficient demand response in smart grid.  - energy and buildings.  154-164. 

a.a. lahimer, m.a. alghoul, k. sopian, n. g. khrit.  (2017).  the effect of solar reflective cover on soak air temperature and thermal comfort of car parked under the sun.  - 17th world renewable energy congress, wrec 2016; university of bahrain (uob)manama; bahrain. 

m.a. alghoul, amer ali, f.v. kannanaikal, n. amin, and k. sopian.  (2017).  concise approach for determining the optimal annual capacity shortage percentage using technoeconomic feasibility parameters of pv power system.  - world renewable energy congress-17, bahrain. 

o.k elayeb, m.a. alghoul, k. sopian, n.g. khrit.  (2017).  optimum design parameters of box window dsf office at different glazing types under sub interval of intermediate sky conditions (20-40 klux).  - world renewable energy congress-17, bahrian. 

m.a. alghoul, amer ali, f.v. kannanaikal, n. amin, a.a. aljaafar, mohammed kadhim and k. sopian.  (2017).  effect of different solar radiation data sources on the variation of techno-economic feasibility of pv power system.  - 17th world renewable energy congress, wrec 2016; university of bahrain (uob)manama; bahrain. 

n.g. khrit, m.a. alghoul, k. sopian, a.a. lahimer, and o.k. elayeb.  (2017).  assessing the accuracy of globe thermometer method in predicting outdoor mean radiant temperature under malaysia tropical microclimate.  - world renewable energy congress-17, bahrain. 

zeki ahmed darwish, k. sopian, hussein a kazem, m.a. alghoul and hussain alawadhi.  (2017).  investigating the effect of titanium dioxide (tio2) pollution on the performance of the mono-crystalline solar module.  - 17th world renewable energy congress, wrec 2016; university of bahrain (uob)manama; bahrain. 

monadhil al-chaderchi, k. sopian, m. a. alghoul, t. salameh.  (2017).  experimental study of the effect of fully shading on the solar pv module performance.  - 17th world renewable energy congress, wrec 2016; university of bahrain (uob)manama; bahrain. 

ali h a alwaeli, k. sopian, adnan ibrahim, sohif mat, and mohd hafidz ruslan.  (2017).  nanofluid based photovoltaic thermal (pvt) incorporation in palm oil production process.  - international journal of computation and applied science.  292-294. 

a.m. elbreki, m.a. alghoul, k. sopian, t. hussein.  (2017).  towards adopting passive heat dissipation approaches for temperature regulation of pv module as a sustainable solution.  - renewable and sustainable energy reviews.  961-1017. 

kamaruzzaman sopian, azami zaharim, mohd syafiq zulfakar & norasikin ahmad ludin.  (2017).  review on recent performance titanium dioxide for flexible dye sensitized solar cell.  - energy and sustainability in small developing economies 2017. 

k sopian, sl cheow & sh zaidi.  (2017).  an overview of crystalline silicon solar cell technology: past, present, and future.  - 4th international conference on the advancement of materials and nanotechnology, aip conference proceedings. 

k. sopian, p. ooshaksaraei, s.h. zaidi & m.y. othman.  (2017).  photovoltaics for sustainable electricity and buildings.  - 15. 

enggsa z.m., rachman a., sulaiman y., asmidzam m., mat s., sopian k..  (2016).  performance and energy analysis of a solar hybrid desiccant air-conditioning system.  - aip conference proceedings.  1-4. 

ahmad fudholi, b. bakhtyar, habibis saleh, mohd hafidz ruslan, mohd yusof othman & kamaruzzaman sopian.  (2016).  drying of salted silver jewfish in a hybrid solar drying system and under open sun: modeling and performance analyses.  - international journal of green energy.  1135-1144. 

mohd. yusof hj. othman, faridah hussain, kamaruzzman sopian, baharuddin yatim & hafidz ruslan.  (2016).  renewable energy in the service of mankind vol ii.  - 10. 

ahmed samir naje, shreeshivadasan chelliapan, zuriati zakaria, mohammed a. ajeel, kamaruzzaman sopiand and husam abdulrasool hasan.  (2016).  electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode.  - rsc advances.  1-43. 

mohd yusof othman, faridah hussain & kamaruzzaman sopian.  (2016).  photovoltaic-thermal solar collector technology & development.  -

mohd yusof othman, faridah hussain & kamaruzzaman sopian.  (2016).  photovoltaic-thermal solar collector technology & development.  - 17th world renewable energy congress 2016. 

abed a.m., abed i.a., majdi h.s., al-shamani a.n., sopian k..  (2016).  a new optimization approach for shell and tube heat exchangers by using electromagnetism-like algorithm (em).  - heat and mass transfer/waerme- und stoffuebertragung.  2621-2634. 

zeynab emdadi, nilofar asim, m. ambar yarmo, roslinda shamsudin, masita mohammad and k. sopian.  (2016).  the study of naoh and aging time effects on green geopolymers compressive strength.  - advances in environmental biology.  119-125. 

k. sopian, a.m elbreki, m.h. ruslan, ali najah al-shamani, b. elhub, azher m. abed, husamabdulrasool hasan & m. m. s. dezfouli.  (2016).  a stand-alone photovoltaic system design and sizing: a greenhouse application in sabha city: case study in libya.  - proceeding of the 3rd engineering science and technology international conference (estic) 2016, padang indonesia. 

m.y. othman, s.a. hamid, m.a.s. tabook, k. sopian, m.h. ruslan & z. ibarahim.  (2016).  performance analysis of pv/t combi with water and air heating system: an experimental study.  - renewable energy.  716-722. 

mahmoud a.m. al alwani, norasikin a. ludin, abu bakar mohamad, abdul amir h. kadhum, muneer m. baabbad, kamaruzzaman sopian.  (2016).  optimization of dye extraction from cordyline fruticosa via response surface methodology to produce a natural sensitizer for dye sensitized solar cells.  - result in physics.  520-529. 

c.h. lim, k.s. teh, e. salleh, sohif mat, k. sopian, t.s. tan.  (2016).  field study on the performance of radiant barriers under hot climatic conditions.  - weentech proceedings in energy: international conference on energy, environment and economics, heriot-watt university, edinburgh, united kingdom.  150-154. 

chin hoong teh, rusli daik, eng liang lim, chi chin yap, mohd adib ibrahim, norasikin ahmad ludin, kamaruzzaman sopian, mohd asri mat teridi.  (2016).  a review of organic small molecule-based hole transporting materials for meso-structured organic-inorganic perovskite solar cells.  - journal of materials chemistry a.  15788-15822. 

towhid h. chowdhury, ashraful islam, a. k. mahmud hasan, m. asri mat terdi, m. arunakumari, surya prakash singh, md. khorshed alam, idriss m. bedja, mohd hafidz ruslan, kamaruzzaman sopian, nowshad am.  (2016).  prospects of graphene as a potential carrier-transport material in third-generation solar cells.  - the chemical record.  614-632. 

ayu wazira azhari, kamaruzzaman sopian, dewi suriyani che halin, abdul haqi ibrahim, saleem h. zaidi.  (2016).  response surface methodology (rsm) in fabrication of nanostructured silicon.  - material science forum.  151-155. 

muhammad arif riza, mohd adib ibrahim, ubani charles ahamefula, mohd asri mat teridi, norasikin ahmad ludin, suhaila sepeai, kamaruzzaman sopian.  (2016).  prospects and challenges of perovskite type transparent conductive oxides in photovoltaic applications. part ii - synthesis and deposition.  - solar energy.  309-317. 

ahmad fudholi, chan hoy yen, habibis saleh, dayang fredalina basri, mohd hafidz ruslan, rado yendra, ari pani desvina, rahmadeni and kamaruzzaman sopian.  (2016).  mathematical modeling of belimbing dayak fruit (baccaurea angulata) influence of different drying air temperature.  - research journal of applied sciences, engineering and technology.  153-157. 

ahmad fudholi, chan hoy yen, habibis saleh, dayang fredalina basri, mohd hafidz ruslan, rado yendra, ari pani desvina, rahmadeni and kamaruzzaman sopian.  (2016).  drying kinetics and drying models of terong dayak (solanum lasiocarpum).  - research journal of applied sciences, engineering and technology.  197-201. 

ahmad fudholi, chan hoy yen, habibis saleh, dayang fredalina basri, mohd hafidz ruslan, rado yendra, ari pani desvina, rahmadeni and kamaruzzaman sopian.  (2016).  activation energy of thin-layer drying kinetics of belimbing dayak fruit (baccaurea angulata).  - research journal of applied sciences, engineering and technology.  295-300. 

c.a. ubani, m.a. ibrahim, m.a.m. teridi, k. sopian, j. ali, k.t. chaudhary.  (2016).  application of graphene in dye and quantum dots sensitized solar cell.  - solar energy.  531-550. 

muhammad arif riza, mohd adib ibrahim, ubani charles ahamefula, mohd asri mat teridi, norasikin ahmad ludin, suhaila sepeai, kamaruzzaman sopian.  (2016).  prospects and challenges of perovskite type transparent conductive oxides in photovoltaic applications. part i - material developments.  - solar energy.  371-378. 

a. ghazali, e. salleh, c. h. lim, k. sopian and s. mat.  (2016).  economic evaluation of vertical photovoltaic system on high-rise building in malaysia.  - journal of advanced research in business and management studies.  123-138. 

c.h. lim, m. alkhair, s. mirrahimi, e. salleh and k. sopian.  (2016).  optimization of wind driven rain barrier for tropical natural ventilated building.  - research journal of applied sciences, engineering and technology.  69-85. 

zeynab emdadi, nilofar asim, mohd ambar yarmo, roslinda shamsudin, masita mohammad and kamaruzaman sopian.  (2016).  green material prospects for passive evaporative cooling systems: geopolymers.  - energies.  1-19. 

ahmad fudholi, rado yendra, dayang fredalina basri, mohd hafidz ruslan, kamaruzzaman sopian.  (2016).  energy and exergy analysis of hybrid solar drying system.  - contemporary engineering sciences.  215 - 223. 

s.s.s. baljit, hoy-yen chan, kamaruzzaman sopian.  (2016).  review of building integrated applications of photovoltaic and solar thermal systems.  - journal of cleaner production.  677-689. 

m. yahya, ahmad fudholi, hadian hafizh, kamaruzzaman sopian.  (2016).  comparison of solar dryer and solar-assisted heat pump dryer for cassava.  - solar energy.  606-613. 

a.m.elbreki,m.a.alghoul,a.n.al-shamani,a.a.ammar,bita yegani, alsanossi m.aboghrara,m.h.rusaln,k.sopian.  (2016).  the role of climatic design operational parameters on combined pv/t collector performance a critical review.  - renewable and sustainable energy reviews.  602-647. 

subramaniam sohila, ramesh rajendran, zahira yaakob, mohd asri mat teridi, kamaruzzaman sopian.  (2016).  photoelectrochemical water splitting performance of flower like zno nanostructures synthesized by a novel chemical method.  - journal of materials science: materials in electronics.  2846-2851. 

abdul rahman th. mohammad, sohif bin mat, k.sopian , abduljalila.al-abidi.  (2016).  review:survey of the control strategy of liquid desiccant systems.  - renewable and sustainable energy reviews.  250-258. 

fatah o. al ghuol, k. sopian, and shahrir abdullah.  (2016).  enhancement of integrated solar collector with spherical capsules pcm affected by additive aluminum powder.  - journal of thermodynamics.  1-7. 

ali najah alshamani, sohif mat, m. h. ruslan, azher m. abed,and k. sopian.  (2016).  effect of new ellipse design on the performance enhancement of pv/t collector cdf approach.  - international journal of environment and sustainability.  54-60. 

darwish z.a., sopian k., alawadhi h., kazem h.a., alghoul m.a..  (2016).  the impact of calcium carbonate on the photovoltaic performance: an indoor experimental study.  - international journal of applied engineering research.  2091-2097. 

mojgan kouhnavard,norasikin ahmad ludin,babak vazifehkhah ghaffari,kamaruzzaman sopian,norshazlinah abdul karim and mikio miyake.  (2016).  an efficient metal free hydrophilic carbon as a counter electrode for dye sensitized solar cells.  - international journal of photoenergy.  1-7. 

m.a. alghoul, p. poovanaesvaran, m.h. mohammed, a.m. fadhil, a.f. muftah,m.m. alkilani, k. sopian.  (2016).  design and experimental performance of brackish water reverse osmosis desalination unit powered by 2 kw photovoltaic system.  - renewable energy.  101-114. 

mehdi ebadi, mohamad y. sulaiman, mohd a. mat-teridi, wan j. basirun, maziar a. golsefidi, kamaruzzaman sopian, aryan sateei, ramin zafar mehrabian.  (2016).  efficient photo electrochemical performance using cuo based electrodes in aqua medium.  - journal of applied electrochemistry.  645-653. 

mahmoud a.m. al-alwani, abu bakar mohamad, norasikin a. ludin, abd. amir h. kadhum, kamaruzzaman sopian.  (2016).  dye-sensitised solar cells: development, structure, operation principles, electron kinetics, characterisation, synthesis materials and natural photosensitisers.  - renewable and sustainable energy reviews.  183-213. 

m.f.abdullah, m.a.alghoul, hameed naser, nilofar asim, shideh ahmadi, b. yatim, k.sopian.  (2016).  research and development efforts on texturization to reduce the optical losses at front surface of silicon solar cell.  - renewable and sustainable energy reviews.  380-398. 

nik muhammad hafiz, mohd radzi abu mansor, wan mohd faizal wan mahmood, fadzli ibrahim, shahrir abdullah, kamaruzzaman sopian.  (2016).  numerical study of hydrogen fuel combustion in compression ignition engine under argon-oxygen atmosphere.  - jurnal teknologi.  77-83. 

ali najah al-shamani , k. sopian , sohif mat , husam abdulrasool hasan , azher m. abed, m.h. ruslan.  (2016).  experimental studies of rectangular tube absorber photovoltaic thermal collector with various types of nanofluids under the tropical climate conditions.  - energy conversion and management.  528-542. 

m.w. kareem, khairul habib, k. sopian, kashif irshad.  (2016).  performance evaluation of a novel multi pass solar air heating collector.  - procedia engineering , 4th international conference on process engineering and advanced materials.  638 - 645. 

a.a.razak, z.a.a.majid, w.h.azmi, m.h.ruslan, sh.choobchian, g.najafi, k. sopian.  (2016).  review on matrix thermal absorber designs for solar air collector.  - renewable and sustainable energy reviews.  682-693. 

m.w.kareem, khairul habib, and k. sopian.  (2016).  dynamic modeling of solar air collector with thermal storage material.  - applied mechanics and materials.  58-62. 

mohd afzanizam mohd rosli, sohif mat, kamaruzzaman sopian, mohd khairul anuar sharif, m.yusof sulaiman, elias salleh.  (2016).  validation of thermal modelling for the back surface temperature of a photovoltaic module for hot and humid climate.  - applied mechanics and materials.  23-28. 

ali h al-waeli, k sopian, hussein a kazem, miqdam t chaichan.  (2016).  photovoltaic solar thermal (pv/t) collectors past, present and future: a review.  - international journal of applied engineering research.  10757-10765. 

a. a. razak, z. a. a. majid, m. h. ruslan, k. sopian.  (2016).  thermal absorber material selection for solar thermal bimetallic multilayer crosses absorber.  - international journal of advanced and applied sciences.  57-60. 

s. misha, s. mat, m.h. ruslan, e. salleh , k. sopian.  (2016).  performance of a solar assisted solid desiccant dryer for oil palm fronds drying.  - solar energy.  415-429. 

azher m. abed, m.a. alghoul, k. sopian.  (2016).  performance evaluation of flash tank-absorption cooling cycle using two ejectors.  - applied thermal engineering.  47-60. 

kamaruzzaman sopian, husam abdulrasool hasan, ali najah al-shamani, azher m. abed, ,m.m.s.dezfouli, b.elhub & a.m.elbreki.  (2016).  numerical investigations on heat transfer enhancement by using sio 2 - water nanofluid in a parabolic trough solar collector.  - proceeding of the 3rd engineering science and technology international conference (estic) 2016. 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian.  (2016).  comparative assessment of a porous burner using vegetable cooking oil-kerosene fuel blends for thermoelectric and thermophotovoltaic power generation.  - fuel.  137-147. 

k. sopian, ali najah al-shamani, sohif mat, husam abdulrasool hasan, azher m. abed, m. m. s. dezfouli, a.m elbreki & b. elhub.  (2016).  optimizing nanofluids with the optimum of round tube design on the performance of pvt collector.  - proceeding of the 3rd engineering science and technology international conference (estic) 2016,. 

k. sopian, a.m elbreki, m.h. ruslan, ali najah alshamani, b elhub, azher m. abed, husam abdulrasool hasan & m. m. s. dezfouli.  (2016).  a stand-alone photovoltaic system design and sizing a greenhouse application in sabha city case study in libya.  - proceeding of the 3rd engineering science and technology international conference (estic) 2016. 

chan hoy yen, kamaruzzaman sopian & mazlin mokhtar.  (2016).  creating & promoting green pasar malam community.  - impact: research & innovation.  49. 

nurul aqidah mohd sinin, mohd adib ibrahim, suhaila sepeai, norasikin ahmad ludin, mohd asri mat teridi, mohd norizam md daud, kamaruzzaman sopian and saleem h. zaidi.  (2016).  investigation of cell performance with different firing technique on bifacial solar cell.  - solid state science and technology.  306-314. 

h. razali1*, k. sopian1, s. mat 1 , m.r.a. mansor2 and n. amon3.  (2016).  hydrogen mixture with gasoline for conventional motorcycles and effect on mass flow rate, brake thermal efficiency and emissions.  - international journal of automotive and mechanical engineering (ijame).  3681-3695. 

samir mahmmod ahmad, wan zulhafizhazuan, cheow siu leong, kamaruzzaman sopian and saleem h. zaidi.  (2016).  investigation of screen-printed metal contacts to n-doped multi-crystalline si substrate.  - solid state science and technology.  14-29. 

siti nur farhana mohd nasir, mohd khairul najib yahya, norfaizzatul wahidah mohamad sapian, norasikin ahmad ludin, mohd adib ibrahim, kamaruzzaman sopian and mohd asri mat teridi.  (2016).  heterojunction cr2o3/cuo:ni photocathodes for enhanced photoelectrochemical performance.  - rsc advances.  1-7. 

mojgan kouhnavard,norasikin ahmad ludin,babak vazifehkhah ghaffari,shoichiro ikeda,kamaruzzaman sopian,mikio miyake1.  (2016).  hydrophilic carbon/tio2 colloid composite a potential counter electrode for dye-sensitized solar cells.  - journal of applied electrochemistry.  1-8. 

m.k. mat desa , s. sapeai, a.w. azhari, k. sopian, m.y. sulaiman , n. amin, s.h. zaidi.  (2016).  silicon back contact solar cell configuration: a pathway towards higher efficiency.  - renewable and sustainable energy reviews.  1516-1532. 

c.h. lim, e. salleh, alkhair m., k.sopian, s.a. chan, k.l. von.  (2016).  thermal characterization and performance of reflective insulations and radiant barriers using heat flow meter.  - weentech proceedings in energy: international conference on energy, environment and economics, heriot-watt university, edinburgh, united kingdom.  95-99. 

saba a. salih, sohif mat, e. salleh, k. sopian, c.h. lim.  (2016).  optimization of vertical axis wind turbine (vawt) performance using venturi effect (ve).  - weentech proceedings in energy: international conference on energy, environment and economics, heriot-watt university, edinburgh, united kingdom.  83-87. 

alkhair m., c.h. lim, k. sopian, b.b. saha.  (2016).  switching time effect in solar adsorption air conditioning system in hot and humid climate.  - weentech proceedings in energy: international conference on energy, environment and economics, heriot-watt university, edinburgh, united kingdom..  225-231. 

azhar ghazali, elias salleh, lim chin haw, kamaruzzaman sopian, sohif mat.  (2016).  photovoltaic façade in malaysia: the development and current issues.  - research journal of applied sciences, engineering and technology.  652-663. 

m. yahya, ahmad fudholi, kamaruzzaman sopian.  (2016).  design and performance of solar-assisted fluidized bed drying of paddy.  - research journal of applied sciences, engineering and technology.  420-426. 

ahmad fudholi, sohif mat, dayang fredalina basri, mohd hafidz ruslan, kamaruzzaman sopian.  (2016).  performances analysis of greenhouse solar dryer with heat exchanger.  - contemporary engineering sciences.  135 - 144. 

alkhair m., m.y. sulaiman, c.h. lim, e. salleh & k. sopian.  (2015).  experimental setup of solar assisted adsorption air conditioning system.  - advances in renewable energy research 2015.  1-15. 

chan hoy yen, kamaruzzaman sopian, mazlin bin mokhtar.  (2015).  mencipta dan mempromosi komuniti pasar malam hijau.  - impak kongress 2015 @ ukm. 

nurul aqidah mohd sinin, mohd adib ibrahim, mohd asri mat teridi, norasikin ahmad ludin, suhaila sepeai, kamaruzzaman sopian.  (2015).  si functionalization with dye molecular as lightharvesting material.  - malaysian journal of analytical sciences (mjas).  1256-1263. 

i m abolgasem, m a alghoul, m h ruslan, h y chan, n g khrit and k sopian.  (2015).  a computation ann model for quantifying the global solar radiation: a case study of al-aqabah-jordan.  - iop conference series: materials science and engineering.  1-6. 

c.h. lim, m. alkhair, s. mirrahimi, e. salleh, k. sopian.  (2015).  a case study of wind driven rain in tropical building.  - 4th international conference on energy and environment technologies and equipment (eeete `15). 

s. moghimi, f. azizpour, c.h. lim, e. salleh, s. mat & k. sopian.  (2015).  renewable energy in the service of mankind vol. 1.  - 6. 

a n al-shamani,k sopian,a m. abed,m a alghoul,m h ruslan,s mat.  (2015).  study of heat transfer due to turbulent flow of nanofluids through rib groove channel.  - iop conf. series: materials science and engineering.  1-6. 

zeynab emdadi, nilofar asim, m. ambar yarmo, and k. sopian.  (2015).  effect of chemical treatments on rice husk (rh) water absorption property.  - international journal of chemical engineering and applications.  273-276. 

m.a.m.rosli, s.misha, k.sopian, s.mat, m.yusof sulaiman, e.salleh.  (2015).  thermal efficiency of the photovoltaic thermal system with serpentine tube collector.  - applied mechanics and materials.  455 - 461. 

mohd syahriman mohd azmi, mohd. yusof hj. othman, mohd hafidz hj. ruslan, kamaruzzaman sopian, zafri azran abdul majid and ahmad fudholi.  (2015).  research and development work on solar assisted drying systems.  - research journal of applied sciences, engineering and technology.  701-714. 

al-shamani a.n., sopian k., mohammed h.a., mat s., ruslan m.h., abed a.m..  (2015).  enhancement heat transfer characteristics in the channel with trapezoidal rib-groove using nanofluids.  - case studies in thermal engineering.  48-58. 

bakhtyar b., saadatian o., alghoul m.a., ibrahim y., sopian k..  (2015).  solar electricity market in malaysia: a review of feed-in tariff policy.  - environmental progress and sustainable energy.  600-606. 

alkhair m., sulaiman m.y., sopian k., lim c.h., salleh e., mat s., saha b.b..  (2015).  design and modeling of one refrigeration ton solar assisted adsorption air conditioning system.  - journal of solar energy engineering, transactions of the asme. 

halim razali, kamaruzzaman sopian, sohif mat.  (2015).  green fuel: 34% reduction of hydrocarbons via hydrogen (al+hcl) blended with gasoline at maximum torque for motorcycle operation.  - arpn journal of engineering and applied sciences.  7780-7783. 

ali najah al-shamani, mohd yusof hj othman, sohif mat, m.h. ruslan, azher m. abed,k. sopian.  (2015).  design & sizing of stand-alone solar power systems a house iraq.  - proceedings of the 9th international conference on renewable energy sources (res `15).  145-150. 

m.m.s. dezfouli, a.ibrahim, s.mat, a. zakaria, m.r. idris, k. sopian.  (2015).  ability of conventional air condition system to produce suitable supply air in hot and humid region.  - 9th international conference on renewable energy sources.  15-20. 

ali najah al shamani, sohif mat, m. h. ruslan, azher m. abed, k. sopian..  (2015).  numerical study on the characteristics of a specially designed rectangular tube absorber photovoltaic thermal collector (pvt).  - wseas transactions on environment and development.  23-28. 

hyder h. balla, shahrir abdullah, wan mahmood wan mohd faizal, rozli zulkifli, kamaruzaman sopian.  (2015).  enhancement of heat transfer coefficient multi-metallic nanofluid with anfis modeling for thermophysical properties.  - thermal science.  1613-1620. 

azher m.abed, k.sopian, h.a.mohammed, m.a.alghoul, mohd hafidz ruslan, sohif mat, ali najah al-shamani.  (2015).  enhance heat transfer in the channel with v-shaped wavy lower plate using liquid nanofluids.  - case studies in thermal engineering.  13-23. 

abed a.m., alghoul m.a., sopian k., mohammed h.a., majdi h.s., al-shamani a.n..  (2015).  design characteristics of corrugated trapezoidal plate heat exchangers using nanofluids.  - chemical engineering and processing: process intensification.  88-103. 

khan n.a., rahman k.s., haque f., dhar n., islam m.a., akhtaruzzaman m., sopian k., amin n..  (2015).  design optimization of cdte thin film solar cells from numerical analysis.  - 8th international conference on electrical and computer engineering: advancing technology for a better tomorrow, icece 2014.  508-511. 

abed a.m., alghoul m.a., sirawn r., al-shamani a.n., sopian k..  (2015).  performance enhancement of ejector-absorption cooling cycle by re-arrangement of solution streamlines and adding rhe.  - applied thermal engineering.  65-75. 

halim razali, kamaruzzaman sopian, sohif mat, sazali ibrahim.  (2015).  modification of motorcycle with hydrogen mixture and effect on emission.  - arpn journal of engineering and applied sciences.  7719-7722. 

halim razali, kamaruzzaman sopian & sohif mat.  (2015).  hidrogen: kesan prestasi enjin, pencemaran dan kos kitaran hayat.  - 222. 

zuraini mohd enggsa, arfidian rachman, lisa nesti, sohif mat, kamaruzzaman sopian.  (2015).  performance analysis of heat pipe heat exchanger for solar hybrid desiccant air-conditioning system.  - advanced materials research.  488-493. 

haque f., khan n.a., rahman k.s., islam m.a., alam m.m., sopian k., amin n..  (2015).  prospects of zinc sulphide as an alternative buffer layer for czts solar cells from numerical analysis.  - 8th international conference on electrical and computer engineering: advancing technology for a better tomorrow, icece 2014.  504-507. 

roonak daghigh, mohd hafidz ruslan,kamaruzzaman sopian.  (2015).  parametric studies of an active solar water heating system with various types of pvt collectors.  - sadhana-academy proceedings in engineering sciences.  2177-2196. 

ahmad fudholi,kamaruzzaman sopian, mohamed gabbasa, b.bakhtyar, m. yahya, mohd hafidz ruslan, sohif mat.  (2015).  techno-economic of solar drying systems with water based solar collectors in malaysia: a review.  - renewable and sustainable energy reviews.  809-820. 

fatah. o. al ghuol, k.sopian, shahrir abdullah, mohammed al-ghoul & ali whaad.  (2015).  heat transfer enhancement techniques for solar air collector hater a review.  - modern applied science.  20-34. 

w.j.hee , m.a.alghoul, b.bakhtyar, om kalthum elayeb, m.a.shameri, m.s.alrubaih, k.sopian.  (2015).  the role of window glazing on daylighting and energy saving in buildings.  - renewable and sustainable energy reviews.  323-343. 

majid z.a.a., razak a.a., ruslan m.h., sopian k..  (2015).  characteristics of solar thermal absorber materials for cross absorber design in solar air collector.  - international journal of automotive and mechanical engineering.  2582-2590. 

i a audwinto, c s leong, k sopian, and s h zaidi.  (2015).  temperature dependences on various types of photovoltaic (pv) panel.  - iop conf. series: materials science and engineering 88 (2015) 012066.  1-6. 

azher m. abed, m.a. alghoul, ali najah al-shamani, k. sopian.  (2015).  evaluating ejector efficiency working under intermediate pressure of flash tank-absorption cooling cycle: parametric study.  - chemical engineering and processing: process intensification.  222-234. 

janusz nowotny, mohammad abdul alim, tadeusz bak, mohammad asri idris, mihail ionescu, kathryn prince, mohd zainizan sahdan, kamaruzzaman sopian, mohd asri mat teridi and wolfgang sigmund.  (2015).  defect chemistry and defect engineering of tio2 based semiconductors for solar energy conversion.  - chemical society reviews.  8424-8442. 

zaihasraf zakaria, puvaneswaran chelvanathan, mohammad junaebur rashid, md akhtaruzzaman, mohammad mezbaul alam, zeid abdullah al-othman, abdulrahman alamoud, kamaruzzaman sopian and nowshad amin.  (2015).  effects of sulfurization temperature on cu2znsns4 thin film deposited by single source thermal evaporation method.  - japanese journal of applied physics.  1-5. 

azher m. abed , m.a. alghoul , r. sirawn , ali najah al-shamani , k. sopian.  (2015).  performance enhancement of ejector - absorption cooling cycle by re-arrangement of solution streamlines and adding rhe.  - applied thermal engineering.  65-75. 

victor lim chee huat, cheow siu leong, kamaruzzaman sopian, saleem hussain zaidi.  (2015).  pulsed laser interactions with silicon nanostructures in emitter formation.  - malaysian journal of analytical sciences.  1274-1283. 

ayu wazira azhari, kamaruzzaman sopian, saleem hussain zaidi.  (2015).  heteroepitaxial growth of vacuum evaporated sige films on nanostructured silicon substrates.  - malaysian journal of analytical sciences.  1229-1242. 

amir abdul razak, zafri azran abdul majid, mohd hafidz ruslan, kamaruzzaman sopian.  (2015).  thermal performance analysis of staging effect of solarthermal absorber with cross design.  - malaysian journal of analytical sciences.  1264-1273. 

m.k. anuar sharif, a.a. al-abidi, s. mat, k. sopian, m.h. ruslan, m.y. sulaiman & m.a.m. rosli.  (2015).  review of the application of phase change material for heating and domestic hot water systems.  - renewable and sustainable energy reviews.  557-568. 

darwish z.a., kazem h.a., sopian k., al-goul m.a., alawadhi h..  (2015).  effect of dust pollutant type on photovoltaic performance.  - renewable and sustainable energy reviews.  735-744. 

abed a.m., alghoul m.a., yazdi m.h., al-shamani a.n., sopian k..  (2015).  the role of enhancement techniques on heat and mass transfer characteristics of shell and tube spray evaporator: a detailed review.  - applied thermal engineering.  923-940. 

k.f. mustafa, s. abdullah, m. z. abdullah, and k. sopian.  (2015).  combustion characteristics of butane porous burner for thermoelectric power generation.  - journal of combustion.  1-13. 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian.  (2015).  experimental analysis of a porous burner operating on kerosene-vegetable cooking oil blends for thermophotovoltaic power generation.  - energy conversion and management.  544-560. 

yunus ahmed, zahira yaakob, parul akhtar, kamaruzzaman sopian.  (2015).  production of biogas and performance evaluation of existing treatment processes in palm oil mill effluent (pome).  - renewable and sustainable energy reviews.  1260-1278. 

n. a. khan, k. s. rahman, m. i. kamaruzzaman, f. haque, m. a. islam, m. m. alam, z. a. alothman, k. sopian, n. amin.  (2015).  effect of laser annealing on cdte thin film deposited by thermal evaporation.  - chalcogenide letters.  191 - 201. 

s. misha, s. mat, m.h. ruslan, e. salleh, k. sopian.  (2015).  performance of a solar assisted solid desiccant dryer for kenaf core fiber drying under low solar radiation.  - solar energy.  194-204. 

p. chelvanathan, y. yusoff, f. haque, m. akhtaruzzaman, m.m. alam,z.a. alothman, m.j. rashid, k. sopian, n. amin.  (2015).  growth and characterization of rf-sputtered zns thin film deposited at various substrate temperatures for photovoltaic application.  - applied surface science.  138-144. 

mojgan kouhnavard, norasikin ahmad ludin, babak v. ghaffari, kamarozzaman sopian and shoichiro ikeda.  (2015).  carbonaceous materials and their advances as a counter electrode in dye-sensitized solar cells: challenges and prospects.  - chemsuschem.  1510-1533. 

p. chelvanathan, z. zakaria, y. yusoff, m. akhtaruzzaman, m.m. alam,m.a. alghoul, k. sopian, n. amin,.  (2015).  annealing effect in structural and electrical properties of sputteredmo thin film.  - applied surface science.  129-137. 

t. khatib, a. mohamed, k. sopian, m. mahmoud.  (2015).  optimal sizing of hybrid pv/wind systems for malaysia using loss of load probability.  - energy sources part a:recovery, utilisation and environmental effects.  687-695. 

tamer khatib, azah mohamed, m mahmoud, kamaruzzaman sopian.  (2015).  optimization of the tilt angle of solar panels in malaysia.  - energy sources part a:recovery, utilisation and environmental effects.  606-613. 

m. ebadi, m. a. mat-teridi, m. y. sulaiman, w. j. basirun, n. asim, n. a. ludin, m. a. ibrahim, k. sopian.  (2015).  electrodeposited p-type co3o4 with high photoelectrochemical performance in aqueous medium.  - rsc advances.  36820-36827. 

mohd asri mat teridi, mohd adib ibrahim, norasikin ahmad ludin, siti nur farhana mohd nasir, mohamad yusof sulaiman, and kamaruzzaman sopian.  (2015).  graphene based energy devices.  - 16 407-430. 

lim chin haw, kamaruzzaman sopian, mohamad yusof bin sulaiman, elias @ ilias bin salleh, sohif bin mat.  (2015).  characterization and droplets spatial distribution analysis of wind-driven rain effects on builidng facade in equatorial climatic conditions.  -

nowshad amin, kamaruzzaman sopian, mohd. yusof bin hj. othman, takhirdjon m. razykov, mohammad ahmed moh`d alghoul.  (2015).  bandgap optimization mechanism of novel zinc cadmium sulfide (znxcd1-xs) window layer for high efficiency cdte thin film solar cells.  -

elias @ ilias bin salleh, mohd hafidz bin haji ruslan, kamaruzzaman sopian, sohif bin mat.  (2015).  development of solar assisted solid desiccant drying system for kenaf industry.  -

nilofar asim, zeynab emdadi, masita mohammad, m. a. yarmo, k. sopian.  (2015).  agricultural solid wastes for green desiccant applications: an overview of research achievements, opportunities and perspectives.  - journal of cleaner production.  26-35. 

m.b. farriz, m.n. hashim, n.a rais, a.a. zulkefle, m.s.a. khiar, sohif mat, k. sopian.  (2015).  the effect of viscous losses factor on a simple pico-hydro reaction type turbine.  - international journal of applied engineering research.  44489-44492. 

mohd afzanizam mohd rosli, suhaimi misha, kamaruzzaman sopian, sohif mat, mohd yusof sulaiman and elias salleh.  (2015).  thermal modeling of photovoltaic thermal system with polymer sheet in tube absorber collector.  - applied mechanics and materials.  468-47. 

mohammad ahmed moh`d alghoul, kamaruzzaman sopian, mohd. yusof bin hj. othman, mohd hafidz bin haji ruslan.  (2015).  cooling characteristics of underground chilled storage system for low energy house in malaysia.  -

mohd. adib bin ibrahim, kamaruzzaman sopian, norasikin binti ahmad ludin, saleem hussain zaidi, mohamad yusof bin sulaiman, takhirdjon m. razykov.  (2015).  high efficiency low cost solar cells through light harvesting of molecular nanostructure.  -

sohif bin mat, kamaruzzaman sopian, mohd hafidz bin haji ruslan, mohamad yusof bin sulaiman, elias @ ilias bin salleh, lim chin haw.  (2015).  high efficiency evacuated solar collector incorporating an integrated absorber phase change materials storage system.  -

nik muhammad hafiz, mohd radzi abu mansor, wan mohd faizal wan mahmood, fadzli ibrahim, shahrir abdullah, kamaruzzaman sopian.  (2015).  preliminary study of hydrogen fuel combustion in compression ignition engine under argon-oxygen atmosphere.  - 3rd international conference on recent advances in automotive engineering & mobility research (recar 2015). 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian, a.k. ismail.  (2015).  experimental investigation of the performance of a liquid fuel-fired porous burner operating on kerosene-vegetable cooking oil (vco) blends for micro-cogeneration of thermoelectric power.  - renewable energy.  505-516. 

mohd syahriman mohd azmi, mohd. yusof hj. othman, mohd hafidz hj. ruslan, kamaruzzaman sopian, zafri azran abdul majid and ahmad fudholi.  (2015).  research and development work on solar assisted drying systems..  - research journal of applied sciences, engineering and technology.  701-714. 

nilofar asim, mohd. ambar bin yarmo, norasikin binti ahmad ludin, kamaruzzaman sopian, takhirdjon m. razykov, saleem hussain zaidi.  (2015).  studies on solar detoxification performance of tio2, wo3 and their composites as photocatalysts.  -

willy tjiu,tjukup marnoto, sohif mat,mohd hafidz ruslan,kamaruzzaman sopian.  (2015).  darrieus vertical axis wind turbine for power generation ii: challenges in hawt and the opportunity of multi-megawatt darrieus vawt development.  - renewable energy.  560-571. 

nilofar asim, norasikin binti ahmad ludin, kamaruzzaman sopian, saleem hussain zaidi.  (2015).  study and evaluation of different porous geopolymers for green passive cooling application.  -

mohd asri bin mat teridi, kamaruzzaman sopian, norasikin binti ahmad ludin, mohamad yusof bin sulaiman, mohd hafidz bin haji ruslan.  (2015).  heterojunction of p-type semoconductor solar cells based on nio as photocathode.  -

kamaruzzaman sopian; abd halim shamsuddin; abdul wahab mohammad; abu bakar jaafar; baharudin yatim; chong wen tong; hamdani saidi; masjuki bin haji hassan; mohd ali hassan; mohd yusof hj othman; chan hoy yen.  (2015).  carbon free energy: roadmap for malaysia.  - 134. 

ahmad fudholi, kamaruzzaman sopian, b. bakhtyar, mohamed gabbasa, mohd yusof othman, mohd hafidz ruslan.  (2015).  review of solar drying systems with air based solar collectors in malaysia.  - renewable and sustainable energy reviews.  1191-1204. 

m.y. othman, mussalim a.s. tabook, k. sopian, m.h. roslan & z. ibarahim.  (2015).  an experimental study of pv/t combi with water and air heating system.  - journal of novel applied sciences.  725-731. 

willy tjiu, tjukup marnoto, sohif mat, mohd hafidz ruslan, kamaruzzaman sopian.  (2015).  darrieus vertical axis wind turbine for power generation i: assessment of darrieus vawt configurations.  - renewable energy.  50-67. 

nurulkamal masseran, ahmad mahir razali, kamarulzaman ibrahim, azami zaharim, kamaruzzaman sopian.  (2015).  fitting a circular distribution based on nonnegative trigonometric sums for wind direction in malaysia.  - the 2nd ism international statistical conference 2014 with applications in sciences and engineering (ism-ii).  305-311. 

ahmad fudholi, kamaruzzaman sopian, m a alghoul, mohd hafidz ruslan & mohd yusof othman.  (2015).  performances and improvement potential of solar drying system for palm oil fronds.  - renewable energy.  561-565. 

f. hussain, myh othman, b yatim, h ruslan, k sopian, z. anuar & s. khairuddin.  (2015).  an improved design of photovoltaic/thermal solar collector.  - solar energy.  885-891. 

ivan adidharma audwinto, h.y. chan, k. sopian and saleem h. zaidi.  (2015).  low concentration optical enhancement in solar panels.  - research journal of applied sciences, engineering and technology.  873-878. 

m. a. islam, n. a. khan, m. akhtaruzzaman, k. s. rahman, m. aghaei, a. r. m. alamoud, k. sopian, and n. amin.  (2015).  fabrication of cdte ultra thin film solar cell with wide bandgap window layer of cds:o by magnetron sputtering.  - 31st european photovoltaic solar energy conference and exhibition. 

m. s. hossain, m. a. islam, a. m. ali, m. aghaei, m. m. alam, a. r. m. alamoud, k. sopian and n. amin.  (2015).  effect of substrate temperature of znxcd1-xs thin film growth by rf magnetron sputtering.  - proceedings of the 31st european photovoltaic solar energy conference and exhibition. 

n. a. khan, k. s. rahman, m. aghaei, f. haque, m. a. islam, a. r. m. alamoud, k. sopian and n. amin.  (2015).  comparative study of thermal annealed and laser annealed cdte thin films grown by rf magnetron sputtering.  - proceedings of the 31st european photovoltaic solar energy conference and exhibition. 

s. a. shahahmadi, b. yeganeh, n. huda, n. asim, m. hafidz, m. m. alam, z. a. alothman, k. sopian, and n. amin.  (2015).  properties of a-sige thin films on glass by co- sputtering for photovoltaic absorber application.  - journal of nanoscience and nanotechnology.  9275-9280. 

ayu wazira azhari, kamaruzzaman sopian, mohd khairunaz mat desa, saleem h. zaidi.  (2015).  optimization of silver assisted nano pillar etching process in silicon.  - applied surface science.  1863-1877. 

assim m. fadhil, m.a. alghoul, p. poovanaesvaran, and k. sopian.  (2015).  cost variation of 2kwpv-bw reverse osmosis desalination unit at different latitudes.  - proceedings of the 9th international conference on renewable energy sources (res 15), kuala lumpur, 23 - 25 april 2015.  151-156. 

azher m.abed, m.a.alghoul, ali najah alshamani,k. sopian.  (2015).  optimizing the generator and absorber thermal load of combined absorption-ejector refrigeration system.  - proceedings of the 9th international conference on renewable energy sources (res 15), kuala lumpur, malaysia april 23 25, 2015.  89-93. 

k. s. rahman, n. a. khan, m. n. imamzai, m. akhtaruzzaman, k. sopian, z. a. alothman, n. amin.  (2015).  investigation of the annealing time effects on cu deposited cdte thin films for photovoltaic application.  - ieee regional symposium on micro and nanoelectronics (rsm 2015).  4. 

m. a. islam, k. s. rahman, f. haque, n.a. khan, m. akhtaruzzaman, m. m. alam, h. ruslan, k. sopian, n. amin.  (2015).  effect of sn doping on the properties of nano-structured zno thin films deposited by co-sputtering technique.  - journal of nanoscience and nanotechnology.  9184-9191. 

n. dhar, n. a. khan, p. chelvanathan, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian, n. amin.  (2015).  a comprehensive study on mo/cdte metal-semiconductor interface deposited by radio frequency magnetron sputtering.  - journal of nanoscience and nanotechnology.  9291-9297. 

m.b. farriz, h. boejang, m. masjuri, m.s.m. aras, n.h.a. razik, s. mate, k. sopian.  (2015).  evolution of simple reaction type turbines for pico hydro applications.  - jurnal teknologi.  1-9. 

ahmad aizan zulkefle, maslan zainon, zaihasraf zakaria, mohd ariff mat hanafiah, nurul huda abdul razak, seyed ahmad shahahmadi, md. akhtaruzzaman, kamaruzzaman sopian and nowshad amin.  (2015).  a comparative study between silicon germanium and germanium solar cells by numerical simulation.  - applied mechanics and materials.  341-346. 

m. a. islam, n. a. khan, a. m.o. sulaiman, m. s. hossain, m. akhtaruzzaman, a.r.m. alamoud, k. sopian and n. amin.  (2015).  growth optimization of cdte thin films by sputtering for cds:o/cdte solar cells.  - pvsec25:25th international photovoltaic science and engineering conference and exhibition. 

ahmad aizan zulkefle, maslan zainon, zaihasraf zakaria, nurul huda abdul razak, kamaruzzaman sopian and nowshad amin.  (2015).  influence of laser annealing on amorphous sige thin film deposited by rf magnetron co-sputtering technique for solar cell application.  - pvsec25: 25th international photovoltaic science and engineering conference and exhibition. 

n. a. khan, k. s. rahman, t. h. chowdhury, k. sopian, a. m. ali, m. m. alam, n. amin.  (2015).  influence of laser wavelength variation on the laser annealed cdte thin films grown by thermal evaporation.  - ieee regional symposium on nanoelectronics (rsm), 2015 k. terengganu, malaysia).  1-4. 

a m abed, k sopian, m a alghoul, a n al-.shamani, m h ruslan, s mat.  (2015).  theoretical study of new combined absorption-ejector refrigeration system.  - iop conf. series: materials science and engineering.  1-7. 

p poovanaesvaran, ma alghoul, a fadhil, mm abdul-majeed, n asim, k sopian.  (2014).  techno-economic evaluation of a small-scale pv-bwro system at different latitudes.  - desalination and water treatment.  7082-7091. 

halim razali, kamaruzzaman sopian, sohif mat.  (2014).  hydrogen blended with gasoline for internal combustion engine effect on specific fuel consumption based on load tests (l0,l1,l2).  - applied mechanics and materials.  1239-1244. 

suhaila  sepeai, saleem  h. zaidi, m.y. sulaiman,  k. sopian,  m.a. ibrahim m.k.m. desa  and  m.d. norizam.  (2014).  detailed  analysis  of  shallow  and  heavily-­doped  emitters  for  al-­bsf   bifacial  solar  cells.  - advanced materials research.  459-463. 

m. a. m. rosli,s. misha, k. sopian, s. mat, m.yusof sulaiman and e. salleh.  (2014).  thermal efficiency of the photovoltaic thermal system with serpentine tube collector.  - applied mechanics and materials.  455-461. 

ali najah al-shamani, k. sopian, h.a. mohammed, sohif mat, mohd hafidz ruslan, azher m. abed.  (2014).  enhancement heat transfer characteristics in the channel with trapezoidal rib-groove using nanofluids.  - case studies in thermal engineering.  48-58. 

siti nur farhana mohd nasir mohamad yusof sulaiman norasikin ahmad ludin mohd adib ibrahim kamaruzzaman sopian mohd asri mat teridi.  (2014).  review of polymer dye sensitized and hybrid solar cells.  - international journal of photoenergy.  12. 

yazdi m.h., hashim i., sopian k.b..  (2014).  slip boundary layer flow of a power-law fluid over moving permeable surface with viscous dissipation and prescribed surface temperature.  - international review of mechanical engineering.  502-510. 

p. chelvanathan, m. shakeri, m. a. alghoul, m. m. alam, k. sopian and n. amin.  (2014).  gps assisted open loop circuitry based solar tracker.  - the 6th world conference on photovoltaic energy conversion. 

afida ayob, a. m. buhari, m. shakeri , c. puvaneswaran, k. sopian and n. amin.  (2014).  two-mode multi-channel high accuracy real-time data logger for photovoltaic energy harvesting systems.  - the 6th world conference on photovoltaic energy conversion, kyoto, japan. 

p. chelvanathan, f. arith, m. m. alam, z. a. alothman, k. sopian and n. amin.  (2014).  thickness dependent properties of molybdenum thin films induced by growth parameters in magnetron sputtering.  - the 6th world conference on photovoltaic energy conversion, kyoto, japan. 

z. zakaria, p. chelvanathan, m. j. rashid, m. akhtaruzzaman, m. m. alam, k. sopian, n. amin.  (2014).  effects of sulfurization on cu2znsns4(czts) thin films deposited by single source thermal evaporation method.  - the 6th world conference on photovoltaic energy conversion. 

kazi s rahman, faiazul haque, naveed a khan, mohammad a islam, mohammad m alam, md akhtaruzzaman, kamaruzzaman sopian, nowshad amin.  (2014).  properties of cu incorporated cdte thin films for photovoltaic application.  - international conference on electronic materials and nanotechnology for green environment. 

dhar n., chowdhury t.h., islam m.a., khan n.a., rashid m.j., alam m.m., alothman z.a., sopian k., amin n..  (2014).  effect of n-type transition metal dichalcogenide molybdenum telluride (n-mote2) in back contact interface of cadmium telluride solar cells from numerical analysis.  - chalcogenide letters.  271 - 279. 

p. chelvanathan, z. zakaria, n. asim, m. m. alam, k. sopian and n. amin.  (2014).  growth and characterization of tin sulphide (sns) thin films for potential photovoltaic absorber layer application.  - the 6th world conference on photovoltaic energy conversion, kyoto, japan. 

m aminul islam, kazi sajedur rahman, faiazul haque, naveed a khan, md akhtaruzzaman, mohammad m alam, kamaruzzaman sopian, nowshad amin.  (2014).  effect of sn doping on the properties of nano-structured zno thin films deposited by co-sputtering technique.  - international conference on electronic materials and nanotechnology for green environment. 

m. a.islam, m.s. hossain, k.s. rahman, f. haque, m.y. sulaiman, k. sopian, nowshad amin.  (2014).  enhancement of optical properties of cds thin films prepared from sputtering technique: effect of thermal annealing.  - australian journal of basic and applied sciences.  284-287. 

roslizar a., alghoul m.a., bakhtyar b., asim n., sopian k..  (2014).  annual energy usage reduction and cost savings of a school: end-use energy analysis.  - scientific world journal. 

majeed a.m.a., suliman m.y., sopian k..  (2014).  weather effect on the solar adsorption air-conditioning system using activated carbon fiber/ethanol as pair of refrigeration: a case study of malaysia.  - research journal of applied sciences, engineering and technology.  1069 - 1075. 

rosli m.a.m., mat s., sharif m.k.a., sopian k., sulaiman m.y., salleh e..  (2014).  collector efficiency of the polymer solar collector.  - advances in environmental biology.  2583 - 2588. 

emdadi z., asim n., ramali z.a.c., yarmo m.a., shamsudin r., sopian k..  (2014).  feasibility study of using rice husk and its treated forms with alkali solution as a desiccant material.  - wseas transactions on environment and development.  306 - 311. 

naveed a. khan, mohammad a. islam, kazi s. rahman, faiazul haque, puvaneswaran chelvanathan, mohammad m. alam, kamaruzzaman sopian and nowshad amin.  (2014).  study on laser annealed cdte thin films deposited by thermal evaporation technique.  - the 6th world conference on photovoltaic energy conversion, kyoto, japan. 

manoj pudukudy, zahira yaakob, masita mohammad, binitha narayanan, kamaruzzaman sopian.  (2014).  renewable hydrogen economy in asia - opportunities and challenges: an overview.  - renewable and sustainable energy reviews.  743-757. 

hussein a. kazem, tamer khatib, k. sopian, wilfried elmenreich.  (2014).  performance and feasibility assessment of a 1.4 kw roof top grid connected photovoltaic power system under desertic weather conditions.  - energy and buildings.  82:123-129. 

ramesh rajendran, zahira yaakob, mohd asri mat teridi, muhammad syukri abd rahaman, kamaruzzaman sopian.  (2014).  preparation of nanostructured p-nio/n-fe2o3 heterojunction and study of their enhanced photoelectrochemical water splitting performance.  - materials letters.  123-126. 

kamaruzzaman sopian, sawal hamid md ali, nasharuddin zainal, muhammad faiz bukhori, rosdiadee nordin.  (2014).  mega science 2.0 sectoral report: electrical & electronics.  - 260. 

m. a. islam, k. s. rahman, f. haque, n. dhar, mohammad salim, m. akhtaruzzaman, k. sopian, n. amin.  (2014).  opto-electrical properties of in doped cds thin films by co-sputtering technique.  - journal of ovonic research.  185-190. 

m. n. imamzai, m. a. islam, m. j. rashid, t. h. chowdhury, m. m. alam, zeid a. alothman, k. sopian, n. amin.  (2014).  optimization of graded bandgap cd1-xznxte thin film solar cells from numerical analysis.  - chalcogenide letters.  541-551. 

f. haque, n.a. khan, k.s. rahman, m.a. islam, m. m. alam, k. sopian and n.amin.  (2014).  prospects of zinc sulphide as an alternative buffer layer for czts solar cells from numerical analysis.  - 8th international conference on electrical and computer engineering, 20-22 december, 2014, dhaka, bangladesh.  504 - 507. 

imamzai, m.n., rashid, m.j. ; khan, n.a. ; huda, q. ; akhtaruzzaman, m. ; sopian, k. ; amin, n.  (2014).  prospects of novel cdznte thin film solar cells from numerical analysis.  - 2nd international conference on green energy and technology (icget) 2014.  126-131. 

puvaneswaran chelvanathan, yulisa yusoff, mohammad istiaque hossain, md akhtaruzzaman, m mezbaul alam, zeid a alothman, kamaruzzaman sopian, nowshad amin.  (2014).  structural and optical property evolution of rf-sputtered zns thin film.  - international conference on electronic materials and nanotechnology for green environment. 

sayyed a. shahahmadi, b. yeganeh, nilofar asim, m. m. alam, z. a. alothman, kamaruzzaman sopian, nowshad amin.  (2014).  properties of a-sige thin films on glass by co-sputtering for photovoltaic absorber application.  - international conference on electronic materials and nanotechnology for green environment. 

s. a. shahahmadi, m. m. alam, z. a. alothman, k. sopian and n. amin.  (2014).  deposition of morphous silicon germanium thin films on glass by co-sputtering for photovoltaic application.  - nanosmat-usa conference. 

ali ahmed gitan, rozli zulkifli, kamaruzaman sopian, shahrir abdullah.  (2014).  twin pulsating jets impingement heat transfer for fuel preheating in automotives.  - applied mechanics and materials.  322-328. 

s.a. nadi, c. puvaneswaran, m. m. alam, z. a. alothman, m. akhtaruzzaman, k. sopian and n. amin.  (2014).  effects of post deposition treatments in nano-scale growth of czts thin films.  - nanosmat-usa conference. 

n. dhar, k.s. rahman, m.a. islam, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian, n. amin.  (2014).  analysis of mo/cdte interfaces deposited on various substrates.  - nanosmat-usa conference. 

m. a. islam, k.s. rahman, f. haque, m. m. alam, z. a. alothman, m. akhtaruzzaman, y. sulaiman, k. sopian and n. amin.  (2014).  cdte thin film solar cell with wide bandgap window layer of cds:o by magnetron sputtering.  - nanosmat-usa conference. 

ahmad fudholi, kamaruzzaman sopian, mohammad h. yazdi, mohd hafidz ruslan, mohamed gabbasa, hussein a. kazem.  (2014).  performance analysis of solar drying system for red chili.  - solar energy.  99:47-54. 

p.chelvanathan, f. haque, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian and n. amin.  (2014).  growth and characterization of rf-sputtered zns thin film deposited at various substrate temperatures for photovoltaic application.  - nanosmat-usa conference. 

p.chelvanathan, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian and n. amin.  (2014).  annealing effect in structural and electrical properties of sputtered mo thin film.  - nanosmat-usa conference. 

m. a. islam, k.s. rahman, f. haque, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian and n. amin.  (2014).  properties of low temperature vacuum annealed czts thin films deposited on polymer substrate.  - chalcogenide letters.  11(5): 233-239. 

adnan ibrahim, ahmad fudholi, kamaruzzaman sopian, mohd yusof othman, mohd hafidz ruslan.  (2014).  efficiencies and improvement potential of building integrated photovoltaic thermal (bipvt) system.  - energy conversion and management.  527-534. 

ahmad fudholi, kamaruzzaman sopian, mohammad h. yazdi, mohd hafidz ruslan, adnan ibrahim, hussein a. kazem.  (2014).  performance analysis of photovoltaic thermal (pvt) water collectors.  - energy conversion and management.  78:641-651. 

ahmad fudholi, kamaruzzaman sopian, mohd yusof othman, mohd hafidz ruslan.  (2014).  energy and exergy analyses of solar drying system of red seaweed.  - energy and buildings.  68:121-129. 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman. th. mohammad.  (2014).  experimental study of melting and solidification of pcm in a triplex tube heat exchanger with fins.  - energy and buildings.  68:33-41. 

ali. f. muftah, m.a.alghoul, ahmad fudholi, m.m.abdul-majeed, k.sopian.  (2014).  factors affecting basin type solar still productivity: a detailed review.  - renewable and sustainable energy reviews.  32:430-447. 

m. m. s. dezfouli, s. mat, g. pirasteh, k. s. m. sahari, k. sopian, and m. h. ruslan.  (2014).  simulation analysis of the four configurations of solar desiccant cooling system using evaporative cooling in tropical weather in malaysia.  - international journal of photoenergy.  2014:Article ID 843617. 

azami zaharim, kamaruzzaman sopian, d. subbaram naidu, maria isabel garcia-planas, alexander zemliak.  (2014).  manufacturing engineering, automatic control and robotics.  - proceedings of the 14th international conference on robotics, control and manufacturing technology.  234. 

azami zaharim, kamaruzzaman sopian, aida bulucea, vincenzo niola, vaclav skala.  (2014).  computer applications in environmental sciences and renewable energy.  - 267. 

zeynab emdadi, nilofar asim, m. a. yarmo, roslinda shamsudin, zatil amali che ramli & k. sopian.  (2014).  investigation of possibility using of rice husk as desiccant materials.  - computer applications in environmental sciences and renewable energy. 

azami zaharim, kamaruzzaman sopian, gen qi xu, maria isabel garcia-planas.  (2014).  mathematical and computational methods in science and engineering.  - 234. 

kamaruzzaman sopian, nowshad amin, mohamad yusof bin sulaiman, saleem hussain zaidi, takhirdjon m. razykov.  (2014).  high efficiency low-cost manufacturing of silicon solar cells with non-toxic and low temperature processes.  -

k.s. rahman, f. haque, n.a. khan, m. a. islam, m.m. alam, z.a. alothman, k. sopian, n. amin.  (2014).  effect of cdcl2 treatment on thermally evaporated cdte thin films.  - chalcogenide letters.  11(3): 129-139. 

s. moghimi, f. azizpour, s. mat, c. h. lim, e. salleh, k. sopian.  (2014).  building energy index and end use energy analysis in large scale hospitals - case study in malaysia.  - energy efficency.  7:243-256. 

azami zaharim, kamaruzzaman sopian, kleanthis psarris, maurice margenstern.  (2014).  applied computational science.  - proceedings of the 13th international conference on applied computer and applied computational science (acacos `14). 

ali ahmed gitan,rozli zulkifli,shahrir abdullah,kamaruzzaman sopian.  (2014).  development of pulsating twin jets mechanism for mixing flow heat transfer analysis.  - the scientific world journal.  2014;1-8. 

f. haque, k. s. rahman, m. a. islam, m. j. rashid, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian, n. amin.  (2014).  growth optimization of zns thin films by rf magnetron sputtering as prospective buffer layer in thin film solar cells.  - chalcogenide letters.  11(4):189-197. 

samia ahmed nadi, puvaneswaran chelvanathan, zaihasraf zakaria, mohammad mezbaul alam, zeid a. alothman, kamaruzzaman sopian, and nowshad amin.  (2014).  postdeposition annealing effect on cu2znsns4 thin films grown at different substrate temperature.  - international journal of photoenergy.  2014, 589027:1-7. 

ramesh rajendran, zahira yaakob , manoj pudukudy , muhammad syukri abd rahaman , kamaruzzaman sopian.  (2014).  photoelectrochemical water splitting performance of vertically aligned hematite nanoflakes deposited on fto by a hydrothermal method.  - journal of alloys and compounds.  608: 207-212. 

ali najah al-shamani, mohammad h.yazdi, m.a.alghoul,azher m.abed, m.h. ruslan, sohif mat, k.sopian.  (2014).  nanofluids for improved efficiency in cooling solar collectors - a review.  - renewable and sustainable energy reviews.  38:348-367. 

b. bakhtyar, y. ibrahim, m.a. alghoul, n. aziz, a. fudholi, k. sopian.  (2014).  estimating the co2 abatement cost:substitute price of avoiding co2 emission (spae) by renewable energys feed in tariff in selected countries.  - renewable and sustainable energy reviews.  35:205-210. 

yazdi m.h., hashim i., moey l.k., sopian k..  (2014).  slip velocity effect on non-newtonian fluid flow over moving permeable surface with nonlinear velocity and internal heat generation/absorption.  - international review on modelling and simulations.  661-670. 

suhaila  sepeai,  saleem  h.  zaidi,  m.y.  sulaiman,  k.  sopian,  m.a.  ibrahim,   m.k.m.  desa  and  m.d.  norizam.  (2014).  advanced material research.  - detailed  analysis  of  shallow  and  heavily-­doped  emitters  for  al-­bsf   bifacial  solar  cells.  896:459-463. 

c.h. lim, elias salleh, k. sopian, m. yusof sulaiman, sohif mat, k.c. ng..  (2014).  design configurations analysis of wind-induced natural ventilation tower in hot humid climate using computional fluid dynamics.  - 10th international advanced school on wind engineering, university of malaysia pahang.. 

s. misha,s. mat, m.h. ruslan,k. sopian and e. salleh.  (2014).  comparison between 2d and 3d simulations of a tray dryer system using cfd software.  - world applied sciences journal.  29 (10): 1301-1309. 

halim razali, kamaruzzaman sopian, sohif mat.  (2014).  hydrogen blended with gasoline for internal combustion engine effect on specific fuel consumption based on load tests (l0,l1,l2).  - applied mechanics and materials.  465-466 (2014):1239-124. 

m.m.s. dezfouli, s. moghimi, f. azizpour, s. mat, k. sopian.  (2014).  feasibility of saving energy by using vsd in hvac system, a case study of large scale hospital in malaysia.  - wseas transactions on environment and development.  10 (2014) : 15-25. 

m.a.m. rosli, s. misha, k. sopian, s. mat, m.yusof sulaiman and e. salleh.  (2014).  parametric analysis on heat removal factor for a flat plate solar collector of serpentine tube.  - world applied sciences journal.  29 (2): 184-187. 

halim razali, kamaruzzaman sopian, sohif mat.  (2014).  the application of aluminum and hydrochloric acid to produce hydrogen for internal combustion engine via hydrogen mixture with gasoline based on specific fuel consumption.  - advanced materials research. 

zuraini mohd enggsa, arfidian rachman, tri suyono, m. mehdi, sohif mat, kamaruzzaman sopian.  (2014).  theoretical and experimental analysis of desiccant wheel performance for solar hybrid desiccant air-conditioning system.  - advanced materials research. 

nilofar asim, mohd. ambar bin yarmo, roslinda binti shamsudin, kamaruzzaman sopian, norasikin binti ahmad ludin, sohif bin mat.  (2014).  study of using agriculture wates (rice and palm reidues) as desiccant for air conditionin system in humid climate.  -

mohd afzanizam mohd rosli, sohif mat, kamaruzzaman sopian, mohdyusof sulaiman, elias @ ilias salleh and mohdkhairulanuar sharif.  (2014).  thermal performance on unglazed photovoltaic thermal polymer collector.  - advanced materials research. 

m.a. mat teridi, asif ali tahir, s. senthilarasu, k.g.u. wijayantha, m.y. sulaiman, n. ahmad ludin, m.a. ibrahim and k. sopian.  (2014).  fabrication of nio photoelectrodes by aerosol assisted chemical vapour deposition (aacvd).  - physica status solidi (rrl) rapid research letters.  982-986. 

m. alkhair, m.y. sulaiman, k. sopian, c.h. lim, s. mat, e. salleh.  (2014).  simulation analysis of weather effect on cooling capacity and cooling load for a small building cooled by solar adsorption air conditioning system.  - energy, environmental and structural engineering series : 8th international conference on renewable energy sources (res`14) / wseas press. 

selbin p.k., c.h. lim, seyedehzahra mirrahimi, m. alkhair, elias salleh, k. sopian.  (2014).  performance of variable design configurations for wind driven rain (wdr) shading device in tropical climate.  - energy, environmental and structural engineering series : 8th international conference on renewable energy sources (res`14) / wseas press. 

mohd adib ibrahim, nurul aqidah mohd sinin, ayu wazira azhari, suhaila sepeai, mohd norizam md daud, mohd asri mat teridi, norasikin ahmad ludin, kamaruzzaman sopian.  (2014).  relation of surface roughness and photo-induced charge trapping of porous si nanowires.  - energy, environmental and structural engineering series : 8th international conference on renewable energy sources (res`14) / wseas press. 

shideh ahmadi, nilofar asim, m.a. alghoul, f. y. hammadi, kasra saeedfar, n. a. ludin , saleem h. zaidi, k. sopian.  (2014).  the role of physical techniques on the preparation of photoanodes for dye sensitized solar cells.  - international journal of photoenergy.  2014:1-19. 

m. kouhnavard, s. ikeda, n. a. ludin, nb ahmad khairudin, b. v. ghaffari, m. teridi, m. a. ibrahim, s. sepeai, k. sopian.  (2014).  a review of semiconductor materials as sensitizers for quantum dot-sensitized solar cells.  - renewable and sustainable energy reviews.  37(2014):397-407. 

musallam ahmed tabook, mohd yusof othman, kamaruzzaman sopian & mohd hafidz ruslan.  (2014).  a review paper on pv/t combination flat plate collector system and design.  - world essays journal.  1(1): 1-5. 

mohd yusof hj othman, saleem h. zaidi, kamaruzzaman sopian & marhama jelita.  (2014).  analisis terma dan prestasi tetingkap dwi kaca dengan modul fotovoltan semi-lutsinar.  - sains malaysiana.  43(4): 575-582. 

suhaila abdul hamid, mohd yusof othman, kamaruzzaman sopian, saleem h. zaidi.  (2014).  an overview of photovoltaic thermal combination (pv/t combi) technology.  - renewable and sustainable energy reviews.  38:212-222. 

zatil amali che ramli, nilofar asim, wan n. r. w. isahak, zeynab emdadi, norasikin ahmad ludin, m. ambar yarmo and kamaruzzaman sopian.  (2014).  photocatalytic degradation of methylene blue under uv light irradiation on prepared carbonaceous tio2.  - the scientific world journal.  Volume 2014,ID 415136. 

chan hoy yen, mohd hafidz bin haji ruslan, kamaruzzaman sopian.  (2014).  development of jet absorber solar collector for air heating.  -

z. a. a. majid, m. h. ruslan, k. sopian, m. y. othman, and m. s. m. azmi.  (2014).  study on performance of 80 watt floating photovoltaic panel.  - journal of mechanical engineering and sciences.  1150-1156. 

musallam ahmed tabook, mohd yusof othman, kamaruzzaman sopian & mohd hafidz ruslan.  (2014).  double glass pv cell efficiency in pv/t combination water and air heating flat plate collector system.  - journal of novel applied sciences.  1629-1634. 

n. a. khan, k. s. rahman, f. haque, n. dhar, m. a. islam, m. akhtaruzzaman, k. sopian and n. amin.  (2014).  design optimization of cdte thin film solar cells from numerical analysis.  - 8th international conference on electrical and computer engineering; 20-22 december, 2014, dhaka, bangladesh.  508 - 511. 

el-ladan a.h., ruslan m.h., chan h.y., sopian k., zaidi s.h..  (2014).  comparative evaluation of reflective and refractive optical concentration systems in tropical climate.  - research journal of applied sciences, engineering and technology.  1319 - 1325. 

othman m.y.h., zaidi s.h., sopian k., jelita m..  (2014).  thermal analysis and performance of double glazing window with semi-transparent photovoltaic module [analisis terma dan prestasi tetingkap dwi kaca dengan modul fotovoltan semi-lutsinar].  - sains malaysiana.  575 - 582. 

s. n. f. mohd-nasir, m. a. mat-teridi, m. y. sulaiman, n. ahmad-ludin, m. a. ibrahim, k. sopian.  (2014).  inverted organic photovoltaic with dye.  - energy, environmental and structural engineering series : 8th international conference on renewable energy sources (res`14) / wseas press. 

hoy-yen chan, jie zhu, mohd hafidz ruslan, kamaruzzaman sopian, saffa riffat.  (2014).  thermal analysis of flat and transpired solar facades.  - energy procedia - international conference on solar heating and cooling for buildings and industry (shc 2013). 

musallam ahmed tabook, mohd yusof othman, kamaruzzaman sopian & mohd hafidz ruslan.  (2014).  developing a new design of pv/t combination flat plate collector system.  - applied science reports.  27-31. 

m. alkhair, mohd yusof sulaiman, kamaruzzaman sopian, chin haw lim, elias salleh, sohif bin mat, b.b. saha.  (2014).  design and modeling of one refirgeration ton (rt) solar assisted adsorption air conditioning system.  - journal of solar energy engineering.  2014. 

kamaruzzaman sopian, mohd hafidz bin haji ruslan, mohammad ahmed moh`d alghoul, lim chin haw, sohif bin mat.  (2014).  publication related to experimental & simulation studies on advanced solar thermal system for low temperature industrial process heat applications.  -

marzieh badiei, nilofar asim, jamilah m jahim and kamaruzzaman sopian.  (2014).  comparison of chemical pretreatment methods for cellulosic biomass.  - apcbee procedia.  170-174. 

norasikin a. ludin, a.m. al-alwani mahmoud, abu bakar mohamad, abd. amir h. kadhum, kamaruzzaman sopian, nor shazlinah abdul karim.  (2014).  review on the development of natural dye photosensitizer for dye-sensitized solar cells.  - renewable and sustainable energy reviews.  31:386-396. 

mohamed gabbasa, kamaruzzaman sopian, ahmad fudholi, nilofar asim.  (2014).  a review of unitized regenerative fuel cell stack: material, design and research achievements.  - international journal of hydrogen energy.  17765-17778. 

bakhtyar b., c.h. lim, y. ibrahim, r. islam, k.sopian.  (2014).  moving up on solar industry value chain: a respond to world bank`s prescription for malaysia.  - american journal of economics and business administration.  72-80. 

vinson adidhrama audwinto, sina enthesari n., k. sopian, mohd. yusof hj. othman, mohd. hafidz bin haji ruslan & chan hoy yen.  (2014).  thermal analysis of jet impingment solar air collector.  - proceedings of the 8th international conference on renewable energy sources(res `14) : proceedings of the 2nd international conference on environmental informatics (eninf `14).  221-224. 

norasikin a. ludin, m.azwan m. bakri, norman kamaruddin, kamaruzzaman sopian, m. solah deraman, norul hisham hamid, nilofar asim, m. yusuf othman.  (2014).  malaysian oil palm plantation sector: exploiting renewable energy toward sustainability production.  - journal of cleaner production.  65(2014):9-15. 

z. a. a. majid, m. h. ruslan, k. sopian, m. y. othman and m. s. m. azmi.  (2014).  study on performance of 80 watt floating photovoltaic panel.  - journal of mechanical engineering and sciences.  1150-1156. 

m. h. yazdi, i. hashim, a. fudholi, p. ooshaksaraei, and k. sopian.  (2014).  entropy generation analysis of power-law non-newtonian fluid flow caused by micropatterned moving surface.  - mathematical problems in engineering.  1-16. 

abdulrahman t. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  a statistical analysis of a liquid desiccant dehumidifier/regenerator in an air conditioning system.  - international journal of thermal & environmental engineering.  5(1):41-50. 

nortazi sanusi, azami zaharim, kamaruzzaman sopian.  (2013).  an initial review : stochastic application in wind speed forecasting.  - proceedings of the 7th international conference on energy and development, environment and biomedicine (edeb `13):recent advances in energy, environment and development / wseas press. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian.  (2013).  measurements of spectral-band solar irradiance in bangi, malaysia.  - solar energy.  89:62-80. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  survey of hybrid liquid desiccant air conditioning systems.  - renewable and sustainable energy reviews.  20:186-200. 

abduljalil a. al-abidin, sohif bin mat, k. sopian, m.y. sulaiman, abdulrahman th. mohammed.  (2013).  cfd applications for latent heat thermal energy storage: a review.  - renewable and sustainable energy reviews.  20:353-363. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  optimization of process parameters using d-optimal design for synthesis of zno nanoparticles via solgel technique.  - journal of industrial and engineering chemistry.  99-105. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  the effect of process parameters on the size of zno nanoparticles synthesized via the sol-gel technique.  - journal of alloys and compounds.  550:63-70. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  implementation and validation of an artificial neural network for predicting the performance of a liquid desiccant dehumidifier.  - energy conversion and management.  67:240-250. 

mohammad h. yazdi, shahrir abdullah, ishak hashim & kamaruzzaman sopian.  (2013).  reducing entropy generation in mhd fluid flow over open parallel microchannels embedded in a micropatterned permeable surface.  - entropy.  15(11):4822-4843. 

mohamed gabbasa, kamaruzzaman sopian.  (2013).  potential and status of the renewable energy technologies for sustainable energy development in organization of islamic conference (oic) countries.  - wseas transactions on environment and development.  4(9):253-263. 

azami zaharim, kamaruzzaman sopian.  (2013).  latest trends in renewable energy and environmental informatics.  - 378. 

azami zaharim, kamaruzzaman sopian.  (2013).  computational methods in science and engineering:proceedings of the 15th international conference on mathematical and computational methods in science and engineering (macmese `13).  - proceedings of the 15th international conference on mathematical and computational methods in science and engineering (macmese `13). 

nicolae patrascoiu, azami zaharim, kamaruzzaman sopian.  (2013).  latest trends in circuits, control and signal processing.  - 205. 

emil pop, camelia barbu, nicole patrascoiu, azami zaharim, kamaruzzaman sopian.  (2013).  latest trends in applied computational science : proceedings of the 12th international conference on applied computer and applied computational science (acacos `13).  - proceedings of the 12th international conference on applied computer and applied computational science (acacos `13). 

kamaruzzaman sopian, adnan ibrahim, ahmad fudholi,mohd yusof othman, mohd hafidz ruslan, hussein a. kazem.  (2013).  experimental studies on building integrated photovoltaic thermal collectors with different absorber design.  - recent advances in energy, environment and geology : 2nd international conference on energy systems, environment, entrepreneurship and innovation (iceseei `13). 

ahmad fudholi, adnan ibrahim, mohd yusof othman, mohd hafidz ruslan, hussein a. kazem, azami zaharim, kamaruzzaman sopian.  (2013).  energy and exergy analyses on water based photovoltaic thermal(pvt) collector with spiral flow absorber.  - recent advances in energy, environment and geology : 2nd international conference on energy systems, environment, entrepreneurship and innovation (iceseei `13).  70-74. 

k. sopian, p. ooshaksaraei, a. fudholi, r. zulkifli, s.h. zaidi, hussein a. kazeem.  (2013).  performance characterization of single path and double path air based bifacial photovoltaic thermal solar collector.  - recent advances in energy, environment and geology : 2nd international conference on energy systems, environment, entrepreneurship and innovation (iceseei `13). 

p. ooshaksaraei, k. sopian, r. zulkifli, and saleem h. zaidi.  (2013).  characterization of air-based photovoltaic thermal panels with bifacial solar cells.  - international journal of photoenergy.  2013:Article ID 978234. 

aghil shavalipour, mir hamed hakemzadeh, k. sopian, sallehuddin mohamed haris, and saleem h. zaidi.  (2013).  new formulation for the estimation of monthly average daily solar irradiation for the tropics: a case study of peninsular malaysia.  - international journal of photoenergy.  2013:Article ID 174671. 

azami zaharim, kamaruzzaman sopian, giri kattel, rares halbac-cotoara0zamfir, pablo fernandez de arroyabe, sorin radu, thomas panagopoulos, eugen teodor man, susana arad.  (2013).  recent advances in energy, environment and geology.  - 167. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  artificial neural network analysis of liquid desiccant regenerator performance in a solar hybrid air-conditioning system.  - sustainable energy technologies and assessments.  4:11-19. 

b. bakhtyar, k. sopian, m.y. sulaiman, s.a. ahmad.  (2013).  renewable energy in five south east asian countries: review on electricity consumption and economic growth.  - renewable and sustainable energy reviews.  26:506-514. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  artificial neural network analysis of liquid desiccant dehumidifier performance in a solar hybrid air-conditioning system.  - applied thermal engineering.  59:389-398. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  survey of liquid desiccant dehumidification system based on integrated vapor compression technology for building applications.  - energy and buildings.  62:1-14. 

b. bakhtyar, k. sopian, a. zaharim, e. salleh, c.h. lim.  (2013).  potentials and challenges in implementing feed-in tariff policy in indonesia and the philippines.  - energy policy.  60:418-423. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  historical review of liquid desiccant evaporation cooling technology.  - energy and buildings.  67:22-33. 

mohamed gabbasa, kamaruzzaman sopian, zahira yaakob, m. reza faraji zonooz , ahmad fudholi, nilofar asim.  (2013).  review of the energy supply status for sustainable development in the organization of islamic conference.  - renewable and sustainable energy reviews.  28:18-28. 

ranj sirwan, m.a. alghoul, k. sopian, yusoff ali.  (2013).  thermodynamic analysis of an ejector-flash tank-absorption cooling system.  - applied thermal engineering.  58:85-97. 

ahmad fudholi, kamaruzzaman sopian, mohd hafidz ruslan, mohd yusof othman.  (2013).  performance and cost benefits analysis of double-pass solar collector with and without fins.  - energy conversion and management.  76:8-19. 

mohd yusof othman, adnan ibrahim, goh li jin, mohd hafidz ruslan, kamaruzzaman sopian.  (2013).  photovoltaic-thermal (pv/t) technology - the future energy technology.  - renewable energy.  171-174. 

hyder h. balla, shahrir abdullah, emad a. jaffar al-mulla, wan mohd faizal wan mahmood, rozli zulkifli, kamaruzaman sopian.  (2013).  effect of reynolds number on heat transfer and flow for multi-oxide nanofluids using numerical simulation.  - research on chemical intermediates.  39(5):2197-2210. 

omidreza saadatian, kamaruzzaman bin sopian, elias salleh.  (2013).  adaptation of sustainability community indicators for malaysian campuses as small cities.  - sustainable cities and society.  6:40-50. 

tamer khatib, azah mohamed, k. sopian & m. mahmoud.  (2013).  optimal sizing of the energy sources in hybrid pv/diesel systems: a case study for malaysia.  - international journal of green energy.  10(1):41-52. 

zahira yaakob, masita mohammad, mohammad alherbawi, zahangir alam, kamaruzaman sopian.  (2013).  overview of the production of biodiesel from waste cooking oil.  - renewable & sustainable energy reviews.  18:184-193. 

m.s. hossain, m.a. islam, q. huda, m.m. aliyu, t. razykov, m.m. alam, z.a. alothman, k. sopian, n. amin.  (2013).  growth optimization of znxcd1 _ xs thin films by radio frequency magnetron co-sputtering for solar cell applications.  - thin solid films.  548(2013):202-209. 

khatib, tamer; sopian, kamaruzzaman; kazem, hussein a..  (2013).  actual performance and characteristic of a grid connected photovoltaic power system in the tropics: a short term evaluation.  - energy conversion and management.  71:115-119. 

razykov, t. m.; amin, n.; alghoul, m.; ergashev, b.; ferekides, c. s.; goswami, y.; hakkulov, m. k.; kouchkarov, k. m.; sopian, k.; sulaiman, m. y.; ullal, h. s..  (2013).  revolutionary novel and low cost cmbd method for fabrication of cdte absorber layer for use in thin film solar cells.  - materials technology.  28(1-2):15-20. 

eman sad ashour, mohamad yusof bin sulaiman, mohd hafidz ruslan and kamaruzzaman sopian.  (2013).  a-si:h/sinw shell/core for sinw solar cell applications.  - nanoscale research letters.  8(1):Art no.466. 

mohd syahriman mohd azmi, mohd yusof hj othman, mohd hafidz hj ruslan, kamaruzzaman sopian & zafri azran abdul majid.  (2013).  study on electrical power output of floating photovoltaic and conventional photovoltaic.  - the 2013 ukm fst postgraduate colloquium.  95-101. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman & kamaruzzaman sopian.  (2013).  energy consumption of hybrid solar drying system (hsds) with rotating rack for salted silver jewfish drying.  - 7th wseas international conference on renewable energy sources (res13).  294-298. 

a. fudholi, n. m. ariffin, m. h. ruslan, m. y. othman, & k. sopian.  (2013).  mathematical modeling for for the drying curves of turmeric.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, kamaruzzaman sopian.  (2013).  prediction the outlet temperature of finned double-pass solar air collector.  - proceedings of the 7th international conference on renewable energy sources (res `13).  284-289. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, kamaruzzaman sopian.  (2013).  mathematical model of double-pass solar air collector.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

kamaruzzaman sopian, ahmad fudholi, mohd yusof othman, mohd hafidz ruslan, sohif mat.  (2013).  r&d of advanced solar dryers in malaysia: (2) air based solar collectors.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

k. sopian, a. fudholi, m. y. othman, m. h. ruslan, & s. mat.  (2013).  r&d of advanced solar dryers in malaysia: (1) air based solar collectors.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

a. fudholi, m. y. othman, m. h. ruslan, s. mat & k. sopian.  (2013).  prospect and future of solar dryer for agricultural and marine product: perspective malaysia.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

goh li jin, mohd yusof hj othman, hafidz ruslan, kamaruzzaman sopian.  (2013).  photovoltaic thermal (pv/t) water collector experiment study.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

mohd. yusof hj. othman, faridah hussain, kamaruzzman sopian, baharuddin yatim & hafidz ruslan.  (2013).  performance study of air-based photovoltaic-thermal (pv/t) collector with different designs of heat exchanger.  - sains malaysiana.  42(9):1319-1325. 

nurulkamal masseran, ahmad mahir razali, kamarulzaman ibrahim, azami zaharim & kamaruzzaman sopian.  (2013).  application of the single imputation method to estimate missing wind speed data in malaysia.  - research journal of applied sciences, engineering and technology.  6(10):1780-1784. 

nurulkamal masseran, ahmad mahir razali, kamarulzaman ibrahim, azami zaharim & kamaruzzaman sopian.  (2013).  the probability distribution model of wind speed over east malaysia.  - research journal of applied sciences, engineering and technology.  6(10):1774-1779. 

charles ahamefula ubani, mohammad yusof sulaiman, ibarahim zahari, kamaruzzaman sopian, noor bayaa ibrahim, mohd yusof hj othman.  (2013).  effect of oxygen on size-controlled systhesis of cdse qds.  - malaysian journal of fundamental and applied sciences.  9(2):93-98. 

mohd syariman mohd azmi, mohd yusof hj othman, mohd hafidz hj ruslan, kamaruzzaman sopian & zafri azran abdul majid.  (2013).  study on electrical power output of floating photovoltaic and conventional photovoltaic.  - aip conference proceeding- the 2013 ukm fst postgraduate colloquium. 

f. hussain, myh othman, b. yatim, h ruslan, k sopian & z. ibarahim.  (2013).  a study of pv/t collector with honeycome heat exchanger.  - aip conference proceeding- the 2013 ukm fst postgraduate colloquium. 

md. akhtaruzzaman, h.n.m. ekramul mahmud, ashraful islam, ahmedei shafei, mohammed rezaul karim , kamaruzzaman sopian , liyuan han , yoshinori yamamoto.  (2013).  simple indoline based donoreacceptor dye for high efficiency dye-sensitized solar cell.  - materials chemistry and physics.  142(1):82-86. 

s.m.c. fairuz m.y. sulaiman c.h. lim s. mat b. ali o. saadatian m.h. ruslan e. salleh k. sopian.  (2013).  long term strategy for electricity generation in peninsular malaysia - analysis of cost and carbon footprint using message.  - energy policy.  62:493-502. 

suhaila sepeai, cheow siu leong, k. sopian, and saleem h. zaidi.  (2013).  surface photovoltage characterization of si wafers and solar cells.  - photovoltaic science and engineering conference (pvsec). 

ayu wazira azhari, adnan ali, victor c.h. lim, suhaila sepeai, kamaruzzaman sopian, saleem h. zaidi.  (2013).  heteroepitaxial growth and simulation of sixge1-x /si solar cells.  - photovoltaic science and engineering conference (pvsec). 

suhaila sepeai, m.k.m.desa, m.y.sulaiman, k.sopian, n.a.ludin, m.d.norizam and saleem h.zaidi.  (2013).  investigation on new combination method of emitter-bsf formation in npp+ bifacial solar cell.  - photovoltaic science and engineering conference (pvsec). 

f. azizpour, s. moghimi, c.h. lim, s. mat, e. salleh, k. sopian.  (2013).  a thermal comfort investigation of a facility department of a hospital in hot-humid climate: correlation between objective and subjective measurements.  - indoor and built environment.  22(5):836-845. 

m. khairunaz, suhaila sepeai, a. w azhari, k. sopian, saleem h. zaidi.  (2013).  investigation of xef2 dry etching for contact isolation of screen printed ibc solar cell.  - 39th ieee photovoltaic specialists conference, tampa, florida. 

a.w.azhari, b. t. goh, suhaila sepeai, m. khairunaz, k. sopian and saleem h. zaidi.  (2013).  synthesis and characterization of self-assembled, high aspect ratio nm-scale columnar silicon structures.  - 39th ieee photovoltaic specialists conference, tampa, florida. 

suhaila sepeai, s. l. cheow, m. y. sulaiman, k. sopian, and saleem h. zaidi.  (2013).  fabrication and characterization of al-bsf bifacial solar cell.  - 39th ieee photovoltaic specialists conference, tampa, florida. 

suhaila sepeai, m. y. sulaiman, m. khairunaz, a.w.azhari, k.sopian, and saleem h.zaidi.  (2013).  numerical analysis of bifacial solar cell using pc1d software.  - 39th ieee photovoltaic specialists conference, tampa, florida. 

f. azizpour, s. moghimi, e. salleh, s. mat, c.h. lim, k. sopian.  (2013).  thermal comfort assessment of large-scale hospitals in tropical climates: a case study of university kebangsaan malaysia medical centre (ukmmc).  - energy and buildings.  64:317-322. 

omidreza saadatian, chin haw lim, kamaruzzaman sopian and elias salleh.  (2013).  a state of the art review of solar walls: concepts and applications.  - journal of building physics.  37(1):55-79. 

sohif mat, abduljalil a. al-abidi, k. sopian, m.y. sulaiman, abdulrahman th mohammad.  (2013).  enhance heat transfer for pcm melting in tripex tube with internal-external fins.  - energy conversion and management.  74:223-236. 

suhaila sepeai, saleem h. zaidi, m.k.m. desa, m.y. sulaiman, n.a. ludin, m. adib ibrahim, k. sopian.  (2013).  design optimization of bifacial solar cell by pc1d simulation.  - journal of energy technologies and policy.  3(5):1-11. 

mahdi shahmiri, nor azowa ibrahim, norhazlin zainuddin, nilofar asim, b bakhtyar, a zaharim, k sopian.  (2013).  effect of ph on the synthesis of cuo nanosheets by quick precipitation method.  - wseas transactions on environment and development.  9(2):243-252. 

s. moghimi, b. bakhtyar, f. azizpour, k. sopian, c.h. lim, s. mat, e. salleh.  (2013).  maximization of energy saving and minimization of insulation cost in a tropical hospital: a case study in malaysia.  - wseas transactions on environment and development.  9(2):211-221. 

n. ahmad-ludin, n. h. hamid, m.a. mohd-bakri, m.a mat-teridi, s. sapeai, m. a. ibrahim, k. sopian, s. mat, c. siwar.  (2013).  current financing models and issues in the malaysian green technology projects.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

n. ahmad-ludin, n. abdul-karim, m.a. mat-teridi, m.a. ibrahim, s.sepeai, k.sopian, m.y.sulaiman, nilofar asim.  (2013).  absorption spectrum of n719 and sq1 dye on tio2 surface of dye-sensitized solar cell.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

mohd adib ibrahim, mohd asri mat teridi, norasikin ahmad ludin, suhaila sepeai, kamaruzzaman sopian, nicholas alderman, lefteris danos, tomas markvart.  (2013).  stability study of alkyl monolayers directly attached to si (111) surface for solar cells application.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

f. azizpour, s. moghimi, e. salleh, s.mat, c.h. lim, k. sopian.  (2013).  thermal comfort and indoor air quality evaluation of hospital patient ward in malaysia.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

s. moghimi, f. azizpour, e. salleh, c.h. lim, s. mat, k. sopian.  (2013).  energy saving and emission reduction by applying radiant barrier insulation on external wall layers, case study of large scale medical center in malaysia.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

c.h. lim, omidreza saadatian, m. yusof sulaiman, sohif mat, k. sopian, mohd. razali mahyuddin, k.c. ng.  (2013).  using computational fluid dynamics (cfd) method in analyzing different design configurations of venturi-shaped wind-induced natural ventilation towers.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

m.k. mat desa, s.a. shahahmadi, suhaila sepeai, k. sopian, m.y. sulaiman and saleem h. zaidi.  (2013).  an investigation of front surface field, emitter and base doping concentration on p-type screen printed back contact solar cells.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

suhaila sepeai, saleem h.zaidi, s.l. cheow, m.y. sulaiman, k. sopian, a.w. azhari, n.a. ludin and m. khairunaz.  (2013).  evaluation of surface photovoltage (spv) in al-back surface fields bifacial solar cell.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

omidreza saadatian, k. sopian, e. salleh, c.h. lim, safa riffat, elham saadatian, arash toudeshki, m.y. sulaiman.  (2013).  a review of energy aspects of green roofs.  - renewable and sustainable energy reviews.  23:155-168. 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman th. mohammad.  (2013).  internal and external fin heat transfer enhancement technique for latent heat thermal energy storage in triplex tube heat exchangers.  - applied thermal engineering.  53(1):147-156. 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman th. mohammad.  (2013).  experimental study of pcm melting in triplex tube thermal energy storage for liquid desiccant air conditioning system.  - energy and buildings.  60:270-279. 

suhaimi misha, sohif mat, mohd hafidz ruslan, kamaruzzaman sopian, elias salleh.  (2013).  the effect of drying air temperature and humidity on the drying kinetic of kenaf core.  - applied mechanics and materials. 

hussein a kazem, tamer khatib, k. sopian, frank buttinger, wilfried elmenreich, ahmed said albusaidi.  (2013).  effect of dust deposition on the performance of multi-crystalline photovoltaic modules based on experimental measurements.  - international journal of renewable energy research.  3(4):850-853. 

m. a. islam, k. s. rahman, f. haque, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian and n. amin.  (2013).  wide bandgap cds:o thin films grown by reactive rf-sputtering.  - 23rd international photovoltaic science and engineering conference (pvsec 23), taipei, taiwan. 

n. amin, f. arith, p. chelvanathan, s. ahmed nadi, k. sopian, m. m. alam and z. a. alothman.  (2013).  an investigation on structural and electrical properties of rf-sputtered molybdenum thin films.  - 23rd international photovoltaic science and engineering conference (pvsec 23), taipei, taiwan. 

a. m. ali, m. a. islam, k sopian, s. radiman, m. m. alam, z. a. alothman and n. amin.  (2013).  the structural and optical properties of vacuum annealed cds thin films prepared by thermal evaporation.  - 23rd international photovoltaic science and engineering conference (pvsec 23), taipei, taiwan. 

n. dhar, p. chelvanathan, k. s. rahman, m.a. m. bhuiyan, m. m. alam, k. sopian and n. amin.  (2013).  effect of p-type transition metal dichalcogenide molybdenum ditelluride (p-mote2) layer formation in cadmium telluride solar cells from numerical analysis.  - 39th ieee photovoltaic specialists conference, tampa, florida. 

s. a. nadi, p. chelvanathan, , m. m. alam, m. akhtaruzzaman, k. sopian, a.s.m. mukter uzzaman and n. amin.  (2013).  effect of substrate temperature on the growth of czts thin films by rf magnetron sputtering.  - 2013 ieee conference on clean energy and technology (ceat). 

m. i. hossain, p. chelvanathan, m. m. alam, m. akhtaruzzaman, k. sopian and n. amin.  (2013).  potential buffer layers for cu2znsns4 (czts) solar cells from numerical analysis.  - ieee conference on clean energy and technology (ceat 2013). 

n. dhar, p. chelvanathan, m. zaman, k. sopian, n. amin.  (2013).  an investigation on structural and electrical properties of rf-sputtered molybdenum thin film deposited on different substrates.  - energy procedia - pv asia pacific conference 2012. 

m.s. hossain, m.a. islam, m.m. aliyu, p. chelvanathan, t. razykov, k. sopian, n. amin.  (2013).  effect of annealing on the properties of znxcd1-xs thin film growth by rf magnetron co-sputtering.  - energy procedia - pv asia pacific conference 2012. 

m.a. islam, m.s. hossain, m.m. aliyu, p. chelvanathan, q. huda, m.r. karim, k. sopian, n. amin.  (2013).  comparison of structural and optical properties of cds films grown by csvt, cbd and sputtering techniques.  - energy procedia - pv asia pacific conference 2012. 

kazi sajedur rahman, mohammad aminul islam, md. sharafat hossain, m. m. alam, kamaruzzaman sopian and nowshad amin.  (2013).  the effect of cu2te as the back surface field layer cds/cdte solar cell.  - 2nd international conference on solar energy material, solar cell and solar energy application (solar asia 2013). 

mohammed mannir aliyu, m. sajedur rahman, towhid h. chowdhury, jessie siaw, kok-keong chong, kamaruzzaman sopian and nowshad amin.  (2013).  the effect of temperature on the growth of high quality al-doped zinc oxide thin films by rf magnetron sputtering.  - 28th european photovoltaic solar energy conference and exhibition. 

victor c.h. lim, a.w.azhari, nowshad amin, kamaruzzaman sopian, and saleem h. zaidi.  (2013).  investigation of laser-fired aluminum foil back-contact in silicon solar cells.  - photovoltaic science and engineering conference (pvsec). 

ahmad fudholi, kamaruzzaman sopian, mohd yusof othman, mohd hafidz ruslan, b. bakhtyar.  (2013).  energy analysis and improvement potential of finned double-pass solar collector.  - energy conversion and management.  75:234-240. 

hyder h. balla, shahrir abdullah, wan mohd faizal wan mahmood, rozli zulkifli, kamaruzaman sopian.  (2013).  numerical study of the enhancement of heat transfer for hybrid cuo-cu nanofluids flowing in a circular pipe.  - journal of oleo science.  62(7):533-539. 

hyder h. balla, shahrir abdullah, wan mohd faizal wan mahmood, m. abdul razzaq, rozli zulkifli, kamaruzaman sopian.  (2013).  modelling and measuring the thermal conductivity of multi-metallic zn/cu nanofluid.  - research on chemical intermediates.  39(6):2801-2815. 

muneer m.ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd. s. takriff, kamaruzzaman sopian and salmin s. al-shamali.  (2013).  kinetics transformation of anatase to rutile phase for titanium dioxide nanoparticles prepared by sol gel method.  - material science forum / trans publication switzerland. 

q. huda, m. m. aliyu, m. a. islam, m. s. hossain, m. m. alam, m. r. karim, m. a.m. bhuiyan, k. sopian and n. amin.  (2013).  cdznte thin films growth by rf sputtering for cdte solar cells.  - conference record of the ieee photovoltaic specialists conference.  3480-3483. 

m.a. islam, q. huda, m.s. hossain, m.m. aliyu, m.r. karim, k. sopian, n. amin.  (2013).  high quality 1 um thick cdte absorber layers grown by magnetron sputtering for solar cell application.  - current applied physics.  13(Supp.2):S115-S121. 

m.a. islam , m.s. hossain, m.m. aliyu, m.r. karim , t. razykov, k. sopian, n. amin.  (2013).  effect of cdcl2 treatment on structural and electronic property of cdte thin films deposited by magnetron sputtering.  - thin solid films.  546:367-374. 

f. hussain, m.y.h. othman, k. sopian, b. yatim, h. ruslan, h. othman.  (2013).  design development and performance evaluation of photovoltaic/thermal(pv/t) air base solar collector.  - renewable and sustainable energy reviews.  25:431-441. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, azami zaharim, kaamruzzaman sopian.  (2013).  mathematical modelling of solar drying of thin layer ginger.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

b bakhtyar, a zaharim, k sopian, ch lim.  (2013).  malaysian low cost housing; needs and barriers.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, azami zaharim, kamaruzzaman sopian.  (2013).  drying curve modelling of salted silver jewfish under open and solar drying.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

b bakhtyar, a zaharim, k sopian, o saadatian, s moghimi.  (2013).  quality housing in affordable price for malaysian low income.  - wseas transactions on environment and development.  9(2):184-197. 

b bakhtyar, a zaharim, k sopian, s moghimi.  (2013).  housing for poor people: a review on low cost housing process in malaysia.  - wseas transactions on environment and development.  9(2):232-242. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  visible light photocatalytic activity of fe3+-doped zno nanoparticle prepared via sol-gel technique.  - chemosphere.  91(11):1604-1611. 

m. a. islam, m. s. hossain, m. m. aliyu, yusuf sulaiman, t. razykov, k. sopian and n. amin.  (2013).  structural, optical and electrical properties of in doped cds thin films prepared from co-sputtering technique.  - 7th wseas international conference on renewable energy sources (res`13) - latest trends in renewable energy and environmental informatics. 

emil pop, camelia barbu, azami zaharim, kamaruzzaman sopian.  (2013).  recent technological advances in education.  - 9th international conference on educational technologies (edute `13) 1st international conference on engineering and technology education (ete `13). 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman th mohammad.  (2013).  numerical study of pcm solidification in a triplex tube heat exchanger with internal and external fins.  - international journal of heat and mass transfer.  61:684-695. 

a.a. lahimer, m.a. alghoul, fadhil yousif, t.m. razykov, n. amin, k. sopian.  (2013).  research and development aspects on decentralized electrification options for rural household.  - renewable and sustainable energy reviews.  24:314-324. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  photocatalytic degradation of chlorophenols under direct solar radiation in the presence of zno catalyst.  - research on chemical intermediate.  1981-1996. 

ranj sirwan, m.a. alghoul, k. sopian, yusoff ali, jasim abdulateef.  (2013).  evaluation of adding flash tank to solar combined ejector-absorption refrigeration system.  - solar energy.  91:283-296. 

masita mohammad, thushara kandaramath hari, zahira yaakob, yogesh chandra sharma, kamaruzzaman sopian.  (2013).  overview on the production of paraffin based-biofuels via catalytic hydrodeoxygenation.  - renewable and sustainable energy reviews.  121-132. 

md. sharafat hossain, mahmud abdul matin, m a islam, mohammad mannir aliyu, takhir razykov, kamaruzzaman sopian and nowshad amin.  (2013).  towards ultra thin and high efficiency znxcd1-xs/cdte solar cell by amps 1d.  - advanced materials research. 

m a islam, shrarafat hossain, nowshad amin, m. mannir aliyu, yusuf sulaiman and kamaruzzaman sopian.  (2013).  investigation for optimum structure of cds:o/cdte solar cell from numerical analysis.  - advanced materials research. 

m. a. islam, m. s. hossain, m. m. aliyu, y. sulaiman, m. r. karim, k. sopian and n. amin.  (2013).  comparative study of zns thin films grown by chemical bath deposition and magnetron sputtering.  - ieee: 7th international conference on electrical and computer engineering, 20-22 dec. 2012, dhaka, bangladesh. 

tamer khatib, azah mohamed, k. sopian.  (2013).  a review of photovoltaic systems size optimization techniques.  - renewable and sustainable energy reviews.  22:454-465. 

hussein a. kazem, tamer khatib, k. sopian.  (2013).  sizing of a standalone photovoltaic/battery system at minimum cost for remote housing electrification in sohar, oman.  - energy and buildings.  61:108-115. 

m.a. shameri, m.a. alghoul, omkalthum elayeb, m. fauzi m. zain, m.s. alrubaih, halizawati amir, k. sopian.  (2013).  daylighting characterstics of existing double-skin facade office buildings.  - energy and buildings.  59:279-286. 

ahmad fudholi, mohd yusof othman, mohd hafidz ruslan, and kamaruzzaman sopian.  (2013).  drying of malaysian capsicum annuum l. (red chili) dried by open and solar drying.  - international journal of photoenergy.  Article no.167895. 

puvaneswaran chelvanathan, mohammad istiaque hossain, jamilah husna, mohammad alghoul, kamaruzzaman sopian, and nowshad amin.  (2012).  effects of transition metal dichalcogenide molybdenum disulfide layer formation in copper-zinc-tint-sulfur solar cells from numerical analysia.  - japanese journal of applied physics.  51:321-324. 

m. i. fadhel, s. shaunmuganathan, m. a. alghoul, malek ali, k. sopian, a. zaharim.  (2012).  drying kinetics of chilli pepper in a force convection indirect solar drying.  - recent researches in energy, environment and sustainable development - proc. int. conf. res `12, epese `12, wwai `12, meptepse `12 and fiaac `12. 

malek ali, ali samer muhsan, m. i. fadhel, m. a. alghoul, k. sopian, a. zaharim.  (2012).  developments of al-12si alloys by reinforcing tin particles.  - recent researches in energy, environment and sustainable development - proc. int. conf. res `12, epese `12, wwai `12, meptepse `12 and meptepse `12. 

manoj k. jha, myriam lazard, azami zaharim & kamaruzzaman sopian.  (2012).  recent advance in business administration : 6th wseas international conference on business administration (icba `12).  - proceedings of the 6th wseas international conference on business administration (icba `12). 

manoj k. jha, myriam lazard, azami zaharim & kamaruzzaman sopian.  (2012).  applied mathematics in electrical & computer engineering.  -

ranj sirwan, yusoff ali, lim chin haw, sohif mat, a.zaharim & k. sopian.  (2012).  modelling and optimization of heat transfer in smooth circular tube used in the shell and tube evaporator.  - proceedings of the 10th wseas international conference on heat transfer, thermal engineering and environment. 

z a abdul majid, n hazali, m a k m hanafiah,a a abdullah,a f ismail, m,h ruslan, k sopian and m s mohd azmi.  (2012).  design and performance of 20 watts portable solar generator.  - 1st international conference in mechanical engineering research (icmer) 2011. 

zulkifli mohd nopiah, maznah banu mohamed habiboo raman, ahmad mohd yusof dan kamaruzzamman sopian.  (2012).  a linear programming approach for integrated malaysian energy model (imem): crude oil and natural gas subsystems.  - international journal of mathematical sciences and applications.  2(1):349-355. 

manoj k. jha, myriam lazard, azami zaharim, kamaruzzaman sopian.  (2012).  recent advances in business administration : proceedings of the 6th wseas international conference on business administration (icba `12).  - recent advances in business administration : proceedings of the 6th wseas international conference on business administration (icba `12). 

b bakhtyar, omidreza saadatian, k sopian.  (2012).  estimating quality of life in new subsidies affordable housing projects.  - journal design + built.  5:1-7. 

mohamed gabbasa,kamaruzzaman sopian.  (2012).  review of the electrodes layer for unitized regenerative proton exchange membrane fuel cells.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

f.azizpour, s. moghimi, s.mat, c.h.lim & k. sopian.  (2012).  a thermal comfort evaluation based on different occupancy levels in hospitals in a hot-humid region.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

s.sadrzadehrafiei, k. sopian, s.mat, c.h.lim.  (2012).  application of triple glazing to mid-rise office building in malaysia.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

mm salehi dezfouli, z hashim, mhruslan, b bakhtyar, k sopian, a zaharim,s mat, a rachman,.  (2012).  experimental investigation of solar hybrid desiccant cooling system in hot and humid weather of malaysia.  - recent advances in energy, environment and economic development : proceedings of the 3rd international conference on development, energy, environment, economics (deee `12). 

b bakhtyar, a zaharim, n asim, k sopian, ch lim,.  (2012).  renewable energy in malaysia : review on energy policies and economic growth.  - recent advances in energy, environment and economic development : proceedings of the 3rd international conference on development, energy, environment, economics (deee `12). 

b bakhtyar, a zaharim, k sopian, omidreza saadatian, n.a. ludin.  (2012).  the effects of feed in tariff on foreign direct investment in malaysia.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

s. moghimi, b.j. raatjes, p.m.van moorsel, f.azizpour,s.mat, c.h.lim, k. sopian.  (2012).  optimum insulation material and thickness in the external walls and determination of the energy saving cost in hospital: case study in malaysia.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

omidreza saadatian, m.y. sulaiman, e. salleh, lc. haw, nilofar asim, k. sopian.  (2012).  energy perspective of roof gardens.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

raed kafafy, muhammad hanafi azami, moumen idres, azami zaharim, kamaruzzaman sopian.  (2012).  development of generic algorithm in wheel-typed hybrid rocket grain design for performance estimation.  - advances in environment, computational chemistry and bioscience :10th wseas international conference on environment, ecosystems and development (eed `12). 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, omidreza saadatian, azami zaharim, kamaruzzaman sopian.  (2012).  investigation of medical herbs moisture in solar drying.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

omidreza saadatian, lim chin haw, k sopian, elias salleh, n.a. ludin.  (2012).  solar walls: the neglected components of passive designs.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, azami zaharim, kamaruzzaman sopian.  (2012).  solar open drying kinetics method for drying chilies.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

masoud dalman, e salleh, omidreza saadatian, ch. lim, k. sopian.  (2012).  the dark sides of the modern urban design in the persian gulf region.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

omidreza saadatian, k sopian, b r elhab, mh ruslan, nilofar asim.  (2012).  optimal solar panels tilt angles and orientations in kuala lumpur, malaysia.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

ahmad fudholi, mohd hafidz ruslan, mohammad fadzlee ngatiman, mohd syahriman mohd azmi, zafri azran, mohd yusof othman, kamaruzzaman sopian.  (2012).  performance of solar drying system with rotating rack for malaysian red chili (chili bangi).  - advances in environment, computational chemistry and bioscience :10th wseas international conference on environment, ecosystems and development (eed `12). 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, kamaruzzaman sopian.  (2012).  performance of solar drying for malaysian capsicum annuum l. (chili bangi).  - advances in environment, computational chemistry and bioscience :10th wseas international conference on environment, ecosystems and development (eed `12). 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, kamaruzzaman sopian.  (2012).  performance of hybrid solar drying system for salted silver jewfish.  - advances in environment, computational chemistry and bioscience :10th wseas international conference on environment, ecosystems and development (eed `12). 

m.s. sapuan, a.m.razali, k.ibrahim, a.zaharim, k. sopian.  (2012).  mapping of wind energy potential using weibull distribution.  - advances in environment, computational chemistry and bioscience :10th wseas international conference on environment, ecosystems and development (eed `12). 

ahmad fudholi, nurul radhia reza, mohd hafidz ruslan, mohd yusof othman, kamaruzzaman sopian.  (2012).  drying kinetics studies of onion (allium cepa l.).  - advances in environment, computational chemistry and bioscience :10th wseas international conference on environment, ecosystems and development (eed `12). 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, m.a. alghoul,azami zaharim, kamaruzzaman sopian.  (2012).  mathematical modeling for the drying curves of seaweed gracilaria cangii using a hot air drying.  - recent researches in energy, environment and sustainable development : proceedings of the 6th wseas international conference on renewable energy sources (res `12). 

omidreza saadatian, sohif bin mat, elias salleh, ch lim, bardia bkhtyar,k sopian.  (2012).  sustainable campus in malaysia.  - technology innovations in education : proceedings of the 8th wseas international conference on educational technologies (edute `12). 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian.  (2012).  issues concerning atmospheric turbidity indices.  - renewable and sustainable energy reviews.  16(8):6285-6294. 

omidreza saadatian, k. sopian, c.h. lim, nilofar asim, m.y. sulaiman.  (2012).  trombe walls: a review of opportunities and challenges in research and development.  - renewable and sustainable energy reviews.  16(1):6340-6351. 

a.a. lahimer, m.a. alghoul, k. sopian, nowshad amin, nilofar asim, m.i. fadhel.  (2012).  research and development aspects of pico-hydro power.  - renewable and sustainable energy reviews.  16:5861-5878. 

mannir m. aliyu, sharafat hossain, md. aminul islam, n. r. hamzah, m. r. karim, k. sopian and nowshad amin.  (2012).  evaluation of the effects and impacts of the cdste interlayer in cds/cdte solar cells through modeling and simulations.  - 2nd international conference on the developments in renewable energy technology [icdret` 2012], dhaka, january 5-7, bangladesh. 

m. mannir aliyu, n. r. hamzah, aminul islam, m.a.matin, mr. r. karim, kamaruzzaman sopian and nowshad amin.  (2012).  the significance of substrate surfaces in flexible thin film cdte solar cells fabrication.  - 2nd international conference on the developments in renewable energy technology [icdret` 2012], dhaka, january 5-7, bangladesh.. 

m. s. hossain, m.m. aliyu, m.a. matin, m.a. islam, k.sopian, m. r. karim and n. amin.  (2012).  prospects of znxcd1-xs window layer in cdte thin film solar cells from numerical analysis.  - 2nd international conference on the developments in renewable energy technology [icdret`12], jan 5-7, dhaka, bangladesh. 

halim razali, kamaruzzaman sopian, baharuddin ali and sohif mat.  (2012).  hydrogen blended with gasoline, diesel, natural gas (ngv) as an alternative fuel for ice in malaysia.  - regional conference on automotive research, recar 2011;kuala lumpur (applied mechanics and materials). 

omidreza saadatian, sohif bin mat, ch lim, saman daneshmand, k sopian.  (2012).  the birth of sustainable development.  - international journal of energy and environment.  6(3):310-317. 

abduljalil a. al-abidi, sohif bin mat, k. sopian, m.y. sulaiman, c.h. lim, abdulrahman th.  (2012).  review of thermal energy storage for air conditioning systems.  - renewable and sustainable energy reviews.  16:5802-5819. 

s. misha, s.mat, m.h.ruslan, k. sopian.  (2012).  review of solid/liquid desiccant in the drying applications and its regeneration methods.  - renewable and sustainable energy reviews.  16:4686-4707. 

t. m. razykov, n. amin, m. a. alghoul, b. ergashev, c. s. ferekides, y. goswami, m. k. hakkulov, k. m. kouchkarov, k. sopian, m. y. sulaiman, and h. s. ullal.  (2012).  effect of the composition on physical properties of cdte absorber layer fabricated by chemical molecular beam deposition for use in thin film solar cells.  - journal of applied physics.  112(2):Art no.023517. 

a. azraf, shahrir abdullah, kamaruzzaman sopian.  (2012).  cooling profile of beryllium filter for small angle neutron scattering cryostat using cfd.  - international review of mechanical engineering.  6(2):251-255. 

hyder h. balla, shahrir abdullah, rozli zulkifli, wan mohd faizal and kamaruzzaman sopian.  (2012).  effect of oxides nanoparticle materials on the pressure loss and heat transfer of nanofluids in circular pipes.  - journal of applied sciences.  12(13):1396-1401. 

saleem h. zaidi and kamaruzzaman sopian.  (2012).  crystalline silicon photovoltaics : a sustainable solution to energy generation.  - myforesighttm. 

tamer khatib, azah mohamed, k. sopian, and m. mahmoud.  (2012).  assessment of artificial neural networks for hourly solar radiation prediction.  - international journal of photoenergy.  2012:ID 946890. 

suhaila sepeai, m.y. sulaiman, saleem h. zaidi and kamaruzzaman sopian.  (2012).  non-destructive evaluation of bifacial solar cell through sem characterization.  - journal of solid state science and technology.  20(1&2):75-81. 

tamer khatib, azah mohamed, kamaruzzaman sopian.  (2012).  on the monthly optimum tilt angle.  - ieee international conference on power engineering and optimization conference. 

tamer khatib, k. sopian, azah mohamed, mohd zamri ibrahim.  (2012).  sizing of a wind charger at minimum cost for remote housing electrification: a case study for nine coastal sites in malaysia.  - energy and buildings.  51:185-190. 

tamer khatib, azah mohamed, k. sopian and m. mahmoud.  (2012).  solar energy prediction for malaysia using artificial neural networks.  - international journal of photoenergy.  2012:Article Id 419504. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad ,mohd s. takriff, kamaruzzaman sopian.  (2012).  synthesis and catalytic activity of tio2 nanoparticles for photochemical oxidation of concentrated chlorophenols under direct solar radiation.  - international journal of electrochemical science.  4871-4888. 

shahril irwan sulaiman, titik khawa abdul rahman, ismail musirin, sulaiman shaari, kamaruzzaman sopian.  (2012).  an intelligent method for sizing optimization in grid-connected photovoltaic system.  - solar energy.  86(7):2067-2082. 

tamer khatib, azah mohamed. m. mahmoud, k. sopian.  (2012).  a new approach for meteorological variables prediction at kuala lumpur, malaysia, using artificial neural networks: application for sizing and maintaining photovoltaic systems.  - journal of solar energy engineering, transactions of the asme.  134(2):art. no. 021005. 

mohd. moniruzzaman, ghulam muhammad, asrar ul haque, md. rafiqul islam, kamaruzzaman sopian, saleem h. zaidi.  (2012).  application of partial grounding technique for ultra wide band antenna.  - advances in natural and applied sciences.  6(2): 230-234. 

tamer khatib, azah mohamed, and k. sopian.  (2012).  a software tool for optimal sizing of pv systems in malaysia.  - modelling and simulation in engineering.  Article ID:969248: 1-12. 

ahmad fudholi, m.h. ruslan, m.a. alghoul, m.y. othman, a. zaharim, k. sopian.  (2012).  mathematical modeling for the drying characteristics of seaweed gracilaria cangii in a solar dryer.  - models and methods in applied sciences : proceedings of the 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics (edscm `12). 

j. m. abdulateef, m. a. alghoul, ranj sirwan, a. zaharim, k. sopian.  (2012).  second law thermodynamic analysis of a solar single-stage absorption refrigeration system.  - models and methods in applied sciences : proceedings of the 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics (edscm `12). 

a. w. azhari, m. a. alghoul, s. h. zaidi, a. h. ibrahim, j. m. abdulateef, a. zaharim, k. sopian.  (2012).  development of diffused solar radiation maps using gis software for malaysia.  - models and methods in applied sciences : proceedings of the 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics (edscm `12). 

k. sopian, m. i. fadhel, w. r. w. daud, m. a. alghoul, a. zaharim.  (2012).  design and performance evaluation of solar assisted chemical heat pump dryer.  - models and methods in applied sciences : proceedings of the 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics (edscm `12). 

tamer khatib, azah mohamed, k. sopian and marvan mahmoud.  (2012).  an iterative method for calculating the optimum size of inverter in pv systems for malaysia.  - electrical review.  88(4):281-284. 

tamer khatib, azah mohamed, k. sopian, m. mahmoud.  (2012).  estimating ambient temperature for malaysia using generalized regression neural network.  - international journal of green energy.  9(3):195-201. 

imre j. rudas, azami zaharim, kamaruzzaman sopian, jiri strouhal.  (2012).  recent researches in communications, electronics, signal processing and automatic control.  - 232. 

imre j. rudas, azami zaharim, kamaruzzaman sopian, jiri strouhal.  (2012).  recent researches in artificial intelligence and database management.  - 181. 

imre j. rudas, azami zaharim, kamaruzzaman sopian, jiri strouhal.  (2012).  recent researches in engineering education and software engineering.  - 137. 

imre j. rudas, azami zaharim,kamaruzzaman sopian, jiri strouhal.  (2012).  recent researches in engineering mechanics, urban & naval transportation and tourism.  - 270. 

tamer khatib, azah mohamed, k. sopian.  (2012).  a review of solar energy modeling techniques.  - renewable and sustainable energy reviews.  16(5):2864-2869. 

ahmad fudholi, mohd hafidz ruslan, mohammad fadzlee ngatiman, mohd syahriman mohd azmi, zafri azran, mohd yusof othman & kamaruzzaman sopian..  (2012).  performance of solar drying system with rotating rack for malaysian red chili (chili bangi)..  - the 10th wseas international conference on environment, ecosystem and development. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, mohd syahriman mohd azmi, azami zaharim and kamaruzzaman sopian..  (2012).  drying of palm oil fronds in solar dryer with finned double-pass solar collectors..  - wseas transactions on heat and mass transfer.  105-114. 

msm azmi, my othman, k sopian, mh ruslan, zaa majid, a fudholi & jm yasin.  (2012).  development of a solar assisted drying system using double- pass solar collector with finned absorber.  - 1st international conference on mechanical engineering research 2011 (icmer2011) - iop conference series materials science and engineering. 

kamaruzzaman sopian, mohd yusof othman, saleem h. zaidi, and nowshad amin.  (2012).  advanced solar assisted drying systems for marine and agricultural products.  - journal of mechanical engineering.  9-14. 

alshrif mustafa, m.a. alghoul, nilofar asim, kh. glaisa, kh. abulqasem, m.n.mohammed, a. zaharim, k. sopian.  (2012).  potential of renewable system powering a mosque in libya.  - models and methods in applied sciences : proceedings of the 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics (edscm `12). 

m. i. fadhel, w. r. w. daud, m.a. alghoul, a.zaharim & k. sopian.  (2012).  economic analysis of solar assisted chemical heat pump dryer.  - models and methods in applied sciences : proceedings of the 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics (edscm `12). 

omidreza saadatian, sohif bin mat,ch lim,k sopian.  (2012).  sustainable development review; from development review; from old tribal beliefs to rio + 20.  - mathematical modelling and simulation in applied sciences : proceedings of the 3rd international conference on energy,environment, devices,systems,communications, computers, ineee 12. 

omidreza saadatian, sohif bin mat, ch lim, k sopian, saman daneshmand.  (2012).  important sustainability in higher educational institutions events.  - latest advances in biology, environment and ecology:proceedings of the 1st international conference on sustainable development, sustainable chemical industry, pollution, hazards & environment (sdscip. 

kamaruzaman sopian, mohd yusof othman, saleem h. zaidi.  (2012).  advances in solar assisted drying systems for marine and agricultural products.  - world renewable energy forum 2012. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, m. i. fadhel1, a. zaharim & k. sopian.  (2012).  spectral transmittance under cloudless sky over bangi-malaysia.  - models and methods in applied sciences : proceedings of the 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics (edscm `12). 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian & t.m. razykov.  (2012).  solar attenuation by aerosols: an overview.  - renewable and sustainable energy reviews.  16(6):4264-4276. 

mohd yusof hj othman, goh li jin, hafidz ruslan, kamaruzaman sopian.  (2012).  photovoltaic thermal (pv/t) air collector`s performance analysis.  - world renewable energy forum 2012. 

f. hussain, z. anuar, s. khairuddin, m.y.h. othman, b. yatim, h. ruslan, k. sopian.  (2012).  performance of a single pass air base photovoltaic / thermal solar collector with and without hexagonal honeycomb heat exchanger.  - world renewable energy forum 2012. 

f. hussain, z. anuar, s. khairuddin, m.y.h. othman, b. yatim, h. ruslan, k. sopian.  (2012).  comparison study of air-based photovoltaic / thermal (pv/t) collector with different designs of heat exchanger.  - world renewable energy forum 2012. 

b. bakhtyar, a. zaharim, k. sopian, o. saadatian, j. abdulateef.  (2012).  affordable quality housing for urban low income earners in malaysia.  - 5th wseas international conference on sensors and signals (sensig` 12), sliema malta. 

halim razali, kamaruzzaman sopian & sohif mat..  (2012).  hidrogen bahan api enjin pembakaran dalam.  - 158. 

asim, n., sadaatian, o., ludin, n.a., reza faraji zonooz, m., sopian, k..  (2012).  perspective of agriculture wastes usage as a resource.  - 2nd international conference on chemical engineering and advanced materials, ceam 2012;guangzhou (advanced materials research). 

azmi, msm; othman, my; sopian, k; ruslan, mh; majid, zaa; fudholi, a; yasin, jm.  (2012).  development of a solar assisted drying system using double-pass solar collector with finned absorber.  - 1st international conference on mechanical engineering research (icmer) 2011; kuantan (iop conference series-materials science and engineering). 

hossain, m.s., islam, m.a., aliyu, m., zaidi, s.h., razykov, t., sopian, k., amin, n..  (2012).  an analysis on structural and optical properties of znxcd 1-xs thin film deposited by rf magnetron sputtering.  - conference record of the ieee photovoltaic specialists conference, pvsc 2012;austin. 

islam, m.a., hossain, m.s., aliyu, m.m., husna, j., karim, m.r., sopian, k., amin, n..  (2012).  effects of thermal annealing on structural and optical properties of sputtered cds thin films for photovoltaic application.  - conference record of the ieee photovoltaic specialists conference, pvsc 2012;austin. 

aliyu, m.m., hossain, s., husna, j., dhar, n., huda, m.q., sopian, k., amin, n..  (2012).  high quality indium tin oxide (ito) film growth by controlling pressure in rf magnetron sputtering.  - 38th ieee photovoltaic specialists conference, pvsc 2012; austin, tx; united states. 

t.m.razykov, n. amin, b.ergashev, c.s.ferekides, d. y.goswami, m.k.hakkulov, k.m.kouchkarov, k.sopian, m.y.sulaiman, m.a.alghoul, h.s.ullal.  (2012).  effect of cdcl2 treatment on raman spectra and electrical properties of cdte films with different compositions fabricated by cmbd.  - 27th european photovoltaic solar energy conference and exhibition. 

mohammed ikbal kabir, seyed a. shahahmadi, victor lim, saleem zaidi, kamaruzzaman sopian, and nowshad amin.  (2012).  amorphous silicon single-junction thin-film solar cell exceeding 10% efficiency by design optimization.  - international journal of photoenergy.  2012:Article ID 460919. 

salwan dihrab, tamer khatib, kamaruzzaman sopian, habeeb al-ani, saleem h. zaidi.  (2012).  on the performance of hybrid pv/unitized regenerative fuel cell system in the tropics.  - international journal of photoenergy.  2012:Article ID 942784. 

tri suyono, kamaruzzaman sopian, sohif mat, muhammad yahya, mohd hafidz ruslan, mohd yusuf sulaiman, azami zaharim.  (2012).  performance of desiccant wheel for low humidity drying system.  - wseas transactions on heat and mass transfer.  4(7):115-124. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, mohd syahriman mohd azmi, azami zaharim, kamaruzzaman sopian.  (2012).  drying of palm oil fronds in solar dryer with finned double-pass solar collectors.  - wseas transactions on heat and mass transfer.  4(7):105-114. 

rozli zulkifli, ali ahmed gitan, kamaruzzaman sopian, shahrir abdullah.  (2012).  multiple pulsating jets mechanism for heat transfer enhancement.  - international review of mechanical engineering.  6(3):654-658. 

ali hajiah, tamer khatib, k. sopian, and m. sebzali.  (2012).  performance of grid-connected photovoltaic system in two sites in kuwait.  - international journal of photoenergy.  Art no.178175. 

omidreza saadatian, lim chin haw, k. sopian, m.y. sulaiman.  (2012).  review of windcatcher technologies.  - renewable and sustainable energy reviews.  16:1477-1495. 

m. s. hossain, m. a. islam , q. huda, m. m. aliyu, t. razykov, k. sopian and n. amin.  (2012).  growth of high quality znxcd1-xs thin film window layers by rf magnetron sputtering.  - the 22nd international photovoltaic science and engineering conference, november 05-09, 2012, hangzhou, china. 

mohd. yusof hj. othman, ahmad fudholi, kamaruzzaman sopian, mohd. hafidz ruslan & muhammad yahya.  (2012).  analisis kinetik pengeringan rumpai laut gracilaria changii menggunakan sistem pengering suria.  - sains malaysiana.  41(2):245-252. 

m. m. aliyu, m. s. hossain, q. huda, m. r. karim, t. razykov, k. sopian and n. amin.  (2012).  fabrication of ultra thin (<1um) cdte films by rf sputtering for cdte solar cells.  - the 22nd international photovoltaic science and engineering conference, november 05-09, 2012, hangzhou, china. 

a. shahi, p. chelvanathan, m. i. hossain, m. zaman, k. sopian, n. amin.  (2012).  performance analysis of cu2znsns4 (czts) solar cells by solar cell capacitance simulator (scaps).  - the 22nd international photovoltaic science and engineering conference, november 05-09, 2012, hangzhou, china. 

chin haw lim, omidreza saadatian, baharuddin ali, sohif mat, mohamad yusof sulaiman, kamaruzzaman sopian.  (2012).  case study of win-induces natural ventilation tower in hot and humid climatic conditions.  - 2012 ieee business engineering and industrial applications colloquium. 

masoud dalman, elias salleh, omidreza saadatian, chin haw lim, kamaruzzaman sopian.  (2012).  effects of urban canyons and thermal comfort in persian gulf.  - 2012 ieee business engineering and industrial applications colloquium. 

m. a. islam, m. s. hossain, m. m. aliyu, j. husna, q. huda, m. r. karim, k. sopian and n. amin.  (2012).  growth of wide bandgap cds thin films as window layers of ultra thin cdte solar cells.  - the 22nd international photovoltaic science and engineering conference, november 05-09, 2012, hangzhou, china. 

lim chin haw, omidreza saadatian, m.y.sulaiman, sohif mat, kamaruzzaman sopian.  (2012).  empirical study of a wind-induced natural ventilation tower under hot and humid climatic conditions.  - energy and buildings.  52:28-38. 

nilofar asim, kamaruzzaman sopian, shideh ahmadi, kasra saeedfar, m.a. alghoul, omidreza saadatian, saleem h. zaidi.  (2012).  a review on the role of materials science in solar cells.  - renewable and sustainable energy reviews.  16(8):5834-5847. 

suhaila sepeai, m. y. sulaiman, kamaruzzaman sopian, and saleem h. zaidi.  (2012).  surface passivation studies on n+pp+ bifacial solar cell.  - international journal of photoenergy.  2012:Article ID 278764. 

suhaila sepeai, m.y.sulaiman, saleem h.zaidi, kamaruzzaman sopian.  (2012).  enhanced light absorption in bifacial solar cells.  - ieee-icse2012 proc., 2012, kuala lumpur, malaysia. 

alkhair m. abdul majeed, m.y. sulaiman, k. sopian, c.h. lim, s. elias, s.mat.  (2012).  thermal analysis of concentrating flat plate solar water heater absorber using "ansys" simulation.  - international conference on engineering and built environment (icebe 2012). 

f. azizpour, s. moghimi, c.h. lim, s. mat, e. salleh, k. sopian.  (2012).  a thermal comfort investigation of a facility department of a hospital in hot-humid climate: correlation between objective and subjective measurements.  - indoor and built environment.  2012: 1-10. 

b.r. elhab, k. sopian, sohif mat, ch lim, m.y. sulaiman, m.h. ruslan, omidreza saadatian.  (2012).  optimizing tilt angles and orientations of solar panels for kuala lumpur, malaysia.  - scientific research and essays.  7(4):3758-3765. 

s. n. sharifah nurain, saleem h. zaidi, m. y. sulaiman, and kamaruzzaman sopian.  (2012).  self-aligned cu electroplating of the front surface contact on silicon solar cells.  - aip conference proceeding - international conference on nanotechnology - research and commercialization 2011 (icont 2011). 

chin haw lim, omidreza saadatian, m. yusof sulaiman, sohif mat, k. sopian.  (2012).  air changes and extraction flow rate analysis of wind-induced natural ventilation tower under hot and humid climatic conditions.  - international journal of energy and environment.  6(5):488-495. 

nowshad amin, puvaneswaran chelvanathan, m. istiaque hossain and kamaruzzaman sopian.  (2012).  numerical modelling of ultra thin cu(in,ga)se2 solar cells.  - energy procedia. 

tamer khatib, azah mohamed, marwan mahmoud and k. sopian.  (2012).  an assessment of diffuse solar energy models in terms of estimation accuracy.  - energy procedia - 2nd international conference on advances in energy engineering (iceaa 2011). 

m. m. aliyu, m. a. islam, n. r. hamzah, m. r. karim, m. a. matin, k. sopian, and n. amin.  (2012).  recent developments of flexible cdte solar cells on metallic substrates: issues and prospects.  - international journal of photoenergy.  2012:Article ID 351381. 

omidreza saadatian,k sopian, sohif bin mat,b r elhab,ch lim,m.h.ruslan.  (2012).  solar collectors as shading devices for kuala lumpur malaysia.  - advances in environment, biotechnology and biomedicine : 1st wseas international conference on energy and environment technologies and equipment (eeete `12). 

tamer khatib, azah mohamed, k. sopian, and m.mahmoud.  (2012).  a new approach for optimal sizing of standalone photovoltaic systems.  - international journal of photoenergy.  2012:Art. no 391213. 

mohammad h. yazdi, shahrir abdullah, ishak hashim and kamaruzzaman sopian.  (2012).  entropy generation analysis of open parallel microchannels embedded within a permeable continuous moving surface: application to magnetohydrodynamics (mhd).  - entropy.  14(1):1-23. 

mohd. moniruzzaman, md. rafiqul islam, kamaruzzaman sopian and saleem h. zaidi.  (2012).  wideband patch antenna design using selective particle swarm optimization.  - journal of applied sciences research.  8(1):431-433. 

ranj sirwan, yusoff ali, lim chin haw, sohif mat, a. zaharim, k. sopian.  (2012).  modelling and optimization of heat transfer in smooth circular tube used in the shell and tube evaporator.  - proceedings of the 9th wseas international conference on heat and mass transfer (hmt `12) harvard, cambridge, usa january 25-27. 

ahmad fudholi, mohd hafidz ruslan, lim chin haw, sohif mat, mohd yusof othman, azami zaharim, kamaruzzaman sopian.  (2012).  performance of finned double-pass solar air collector.  - proceedings of the 9th wseas international conference on heat and mass transfer (hmt `12) harvard, cambridge, usa january 25-27. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, lim chin haw, sohif mat, azami zaharim, kamaruzzaman sopian.  (2012).  mathematical model of double-pass solar air collector with longitudinal fins.  - proceedings of the 9th wseas international conference on heat and mass transfer (hmt `12). 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, lim chin haw, sohif mat, azami zaharim, kamaruzzaman sopian.  (2012).  cost analysis of double-pass solar collector with finned absorber.  - proceedings of the 9th wseas international conference on heat and mass transfer (hmt `12). 

ahmad fudholi, mohd zamri ibrahim, mohd hafidz ruslan, lim chin haw, sohif mat,mohd yusof othman, azami zaharim, kamaruzzaman sopian.  (2012).  techno-economics analysis of a wind / pv hybrid system to provide electricity for a household in malaysia.  - proceedings of the american conference on applied mathematics (american-math `12). 

ahmad fudholi, mohd hafidz ruslan, lim chin haw, sohif mat, mohd yusof othman, azami zaharim, kamaruzzaman sopian.  (2012).  mathematical modelling of brown seaweed drying curves.  - proceedings of the american conference on applied mathematics (american-math `12). 

s. sadrzadehrafiei, k. sopian, s. mat, ch. lim, h.s. hashim, a. zaharim.  (2012).  life cycle cost analysis on glass type of malaysian office buildings for reducing energy consumption co2 emissions.  - international journal of energy and environment.  6(2):292-299. 

omidreza saadatian, lim chin haw, sohif bin mat, and kamaruzzaman sopian.  (2012).  perspective of sustainable development in malaysia.  - international journal of energy and environment.  6(2):260-267. 

manoj k. jha, myriam lazard, azami zaharim, kamaruzzaman sopian.  (2012).  applied mathematics in electrical and computer engineering.  - american conference on applied mathematics (american-math `12), 6th wseas int.conf on : circuits, systems, signal and telecommunications (csst `12), computer engineering & applications ((cea `12). 

manoj k. jha, myriam lazard, azami zaharim, kamaruzzaman sopian.  (2012).  recent advances in fluid mechanics, heat & mass transfer and biology.  - proceedings of the 9th wseas international conference on fluid mechanics (fluids `12), heat and mass transfer (hmt `12) and mathematical biology and ecology (mabe `12). 

s. sadrzadehrafiei, k. sopian, s. mat, c. lim, h.s. hashim, a. zaharim.  (2012).  enhancing energy efficiency of office buildings in a tropical climate, malaysia.  - international journal of energy and environment.  6(2):209-216. 

tamer khatib, azah mohamed, m. mahmoud, k. sopian.  (2012).  estimating global solar energy using multilayer perception artificial neural network.  - international journal of energy.  6(1):25-33. 

tamer khatib, azah mohamed, k. sopian.  (2012).  optimization of a pv/wind micro-grid for rural housing electrification using a hybrid iterative/genetic algorithm: case study of kuala terengganu, malaysia.  - energy and buildings.  47:321-331. 

ahmah mohd yusof, zulkifli mohd nopiah, maznah banu mohamed habiboo raman, kamaruzzaman sopian.  (2012).  modelling electricity generation in malaysia using imen: initial results.  - prosiding persidangan kebangsaan ekonomi malaysia (perkem vii) 2012. 

m. i. kabir, zahari ibarahim, m. alghoul, kamaruzzaman sopian, md. rezaul karim, nowshad amin.  (2012).  bandgap optimization of absorber layers in amorphous silicon single and multijunction junction solar cells.  - chalcogenide letters.  9(1):51-59. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and a. a. abass.  (2012).  building integrated photovoltaics (bipv) module in urban housing in khartoum: concept and design considerations.  - international journal of the physical sciences.  7(3):487-494. 

halim razali, kamaruzaman sopian & sohif mat.  (2012).  hidrogen bahan api enjin pembakaran dalam.  - 158. 

m. reza faraji, baharudin ali, kamaruzzaman sopian , o. saadatian dan ahmad mohd yusof.  (2012).  review of current national energy policies in malaysia.  - 3rd international conference on business and economic research (3rd icber), bandung indonesia. 

zulkifli mohd nopiah, maznah banu mohamed habiboo raman, ahmad mohd yusof and kamarruzaman sopian.  (2011).  forecasting the extraction of crude oil and natural gas resources in malaysia using imem.  - international conference on applied sciences, mathematics and humanities (icasmh`11) seremban, negeri sembilan. 

maznah banu mohamed habiboo raman, zulkifli mohd nopiah, ahmad mohd yusof, kamaruzzaman sopian.  (2011).  a linear programming approach for integrated malaysian energy model (imem): crude oil and natural gas subsystems.  - 1st international conference on mathematical sciences and applications. 

azami zaharim, kamaruzaman sopian, nikos mastorakis, valeri mladenov.  (2011).  recent researches in power systems and systems science.  - proceedings of the 11th wseas/ia sme international conference on electric power systems, high voltages, electric machines (power `11) & 10th wseas/iasme (icossse `11). 

azami zaharim, kamaruzaman sopian, nikos mastorakis, valeri mladenov.  (2011).  recent researches in applied informatics and remote sensing.  - proceedings of the 11th wseas international conference on applied computer science (acs`11) & proceedings of the 7th wseas international conference on remote sensing (remote `11). 

md. sharafat hossain, nowshad amin, m. m. aliyu, m.a. matin, m. k. siddiki, t. razykov and k. sopian.  (2011).  znxcd1-xs as prospective window layer in cdte thin film solar cells from numerical analysis.  - 37th ieee photovoltaic specialists conference (pvsc), 2011. 

azraf azman, shahrir abdullah, kamaruzzaman sopian, mohd rizal mamat@ibrahim, anwar abdul rahman, megat harun al rashid megat ahmad, abdul aziz mohamed and muhammad rawi mohd zin.  (2011).  analysis of cryostat for small angle neutron scattering at small research triga reactor by using computational fluid dynamic (cfd).  - journal of nuclear and related technologies.  8(2): 1-7. 

abdulateef j.m., murad n.m., alghoul m.a., zaharim a., sopian k..  (2011).  economic analysis of combined solar-assisted ejector absorption refrigeration system.  - 4th wseas int. conf. on emeseg`11, 2nd int. conf. on world-geo`11, 5th int. conf. on edeb`11; corfu island. 

abdulateef j.m., murad n.m., alghoul m.a., zaharim a., sopian k..  (2011).  experimental study on combined solar-assisted ejector absorption refrigeration system.  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

razali h., ali b., mat s., zaharim a., sopian k..  (2011).  life cycle cost (lcc) analysis: hydrogen as an alternative fuel for internal combustion engine (h 2ice).  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

mohammed m.n., alghoul m.a., abulqasem kh., mustafa a., glaisa kh., ooshaksaraei p., yahya m., zaharim a., sopian k..  (2011).  trnsys simulation of solar water heating system in iraq.  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

mohammad b. kassim, wan ramli wan daud, lorna jeffery minggu, kamaruzzaman sopian, mohd hafizuddin hj. jumali, akrajas ali umar, ibrahim n. hassan, siti fairus mohd yusoff, yap chi chin.  (2011).  progress in photoelectrochemical research 2011.  - 99. 

zulkifli mohd nopiah, maznah banu mohamed habiboo raman, ahmad mohd yusof , kamaruzzaman sopian.  (2011).  the extraction profile of crude oil and natural gas resources in malaysia using imem.  - international conference on applied sciences, mathematics and humanities, 2011 uitm, negeri sembilan. 

suhaila sepeai, m.y.sulaiman, saleem h.zaidi, kamaruzzaman sopian.  (2011).  fabrication on nano-textured silicon bifacial solar cells.  - 2011 ieee conference on sustainable utilisation development in engineering and technology (student2011), the university of nottingham, malaysia campus, semenyih, selangor.. 

suhaila sepeai, m.y.sulaiman, saleem h.zaidi, kamaruzzaman sopian.  (2011).  microstructural studies on fire-through front contact metallization of si solar cells.  - 2011 ieee regional symposium on micro and nano electronics, rsm 2011; kota kinabalu, sabah. 

t.m. razykov, n.amin, c.s. ferekides, y.goswami, k.sopian,
h.s. ullal, and h.m. upadhyaya.  (2011).  thin film solar cells: past, present and future (review).  - 1st annual of low carbon earth summit (lces 2011). 

adnan ibrahim, mohd yusof othman, mohd hafidz ruslan, sohif mat, kamaruzzaman sopian.  (2011).  recent advances in flat plate photovoltaic/thermal (pv/t) solar collectors.  - renewable and sustainable energy reviews.  352-365. 

suhaila sepeai, mohamad yusof sulaiman, kamaruzzaman sopian, saleem h.zaidi.  (2011).  investigation of back surface fields effect on bifacial solar cells.  - international conferenece on nanotechnology- research and commercialization (icont2011), sabah, malaysia. 

suhaila sepeai, mohamad yusof sulaiman, kamaruzzaman sopian..  (2011).  optimization of rapid thermal firing on silver metal contact for crystalline silicon solar cells.  - source: malaysia annual physics conference 2010 (perfik-2010) book series: (aip conference proceedings). 

c.h.lim, omidreza saadatian, m.yusof sulaiman, sohif mat, k.sopian.  (2011).  performance of wind-induced natural ventilation tower in hot and humid climatic conditions.  - proceedings of the 9th wseas international conference on environment, ecosystems and development (eed`11), montreux, switzerland. 

omidreza saadatian, lim chin haw, sohif mat, kamaruzzaman sopian, masoud dalman, elias salleh.  (2011).  sustainable development in malaysia- planning and initiatives.  - proceedings of the 9th wseas international conference on environment, ecosystems and development (eed`11), montreux, switzerland. 

s.sadrzadehrafiei, k.sopian, s.mat, c.lim.  (2011).  application of advanced glazing to mid-rise office buildings in malaysia.  - proceedings of the 9th wseas international conference on environment, ecosystems and development (eed`11), montreux, switzerland. 

f.azizpour, s.moghimi, s.mat, c.h.lim, k.sopian.  (2011).  objective and subjective assessments of thermal comfort in hot-humid region.  - proceedings of the 9th wseas international conference on environment, ecosystems and development (eed`11), montreux, switzerland. 

u.c. ahamefula, m. y. sulaiman, z. ibarahim, k. sopian, y. m. othman, n. b. ibrahim.  (2011).  "away with conventional deteriorants" treasures of cdse quantum dot for solar cell enhancement.  - international conference on nanotechnology research and commercialization (icont 2011). 

u. c. ahamefula, m. y. sulaiman, z. ibarahim, k. sopian, n. b. ibrahim, y. m. othman, m. a. alghoul.  (2011).  particle size-controlled synthesis, caracterization and the effect of oxygen on cdse quantum dot.  - international conference on materials for advanced technology symposium b: synthesis and architecture of nanomaterials (icmat). 

mohd. moniruzzaman, md. rafiqul islam, kamaruzzaman
sopian, saleem h. zaidi.  (2011).  antenna design using particle swarm optimization.  - international journal of electromagnetism and applications.  2(1):17-22. 

mohd. moniruzzaman, md. rafiqul islam, kamaruzzaman
sopian, saleem h. zaidi.  (2011).  clustered particle swarm optimization for planar antenna design.  - journal of science, technology and environment.  2(1):46-48. 

siti khadijah najid, ahmad mahir razali, kamaruzaman ibrahim, kamaruzzaman sopian and azami zaharim.  (2011).  estimating wind energy using extrapolated data of cameron highlands.  - 5th international conference on applied mathematics, simulation, modelling, asm`11; corfu island. 

kh.abulqasem, m.a. alghoul, m.n.mohammed, alshrif.mustafa, kh.glaisa, nowshad.amin, a.zaharim and k.sopian.  (2011).  optimization of renewable power system for small scale seawater reverse osmosis desalination unit in mrair-gabis village, libya.  - 5th international conference on applied mathematics, simulation, modelling, asm`11; corfu island. 

arfidian rachman, kamaruzzaman sopian, sohif mat and muhammad yahya.  (2011).  feasibility study and performance analysis of solar assisted desiccant cooling technology in hot and humid climate.  - american journal of environmental sciences.  7(3):207-211. 

ahmad fudholi, kamaruzzaman sopian, mohd hafidz ruslan,
mohd. yusof othman and muhammad yahya.  (2011).  analytical and experimental studies on the thermal efficiency of the double-pass solar air collector with finned absorber.  - american journal of applied sciences.  8(7):716-723. 

md. sharafat hossain, nowshad amin, nur radhwa hamzah, m.m. aliyu, m.a. matin1, t. razykov and kamaruzzaman sopian.  (2011).  investigation of buffer layers, front and back contacts for znxcd1-xs/cdte photovoltaic.  - 2011 ieee first conference on clean energy and technology cet, 28-29 june 2011,kuala lumpur, malaysia. 

tamer khatib, azah mohamed, kamaruzzaman sopian.  (2011).  modeling of wind speed and relative humidity for malaysia using anns: approach to estimate dust deposition on pv systems.  - 2011 5th international power engineering and optimization conference, peoco 2011; shah alam, selangor. 

f.jahanshah, k. sopian, s. h. zaidi, e.gholipour.  (2011).  simulations of implantation temperature impact on three-dimensional texturing in silicon solar cells.  - world renewable energy congress 2011, lingkoping, sweden.. 

m.h. yazdi, s. abdullah, i. hashim, k. sopian.  (2011).  slip mhd liquid flow and heat transfer over non-linear permeable stretching surface with chemical reaction.  - international journal of heat and mass transfer.  54(15-16):3214-3225. 

mohd s. takriff, muneer m. ba-abbad, abdul amir h. kadhum,
abu bakar mohamad, kamaruzzaman sopian.  (2011).  solar photocatalytic degradation of 2,4-dichlorophenol by tio2 nanoparticle prepared by sol-gel method.  - 2011 international conference on chemical engineering and advanced materials, ceam 2011; changsha (advanced materials research). 

ahmad fudholi, kamaruzzaman sopian, mohd hafidz ruslan,
mohd. yusof othman and muhammad yahya.  (2011).  thermal efficiency of double pass solar collector with longitudinal fins absorbers.  - american journal of applied sciences.  8(3):254-260. 

shahrul anizan, cheow siu leong, khairymaza lee yusri,
nowshad amin, saleem zaidi and kamaruzzaman sopian.  (2011).  the effect of rapid thermal annealing towards the performance of screen-printed si solar cell.  - american journal of applied sciences.  8(3):267-270. 

a.m. muzathik, w.b.w. nik, m.z. ibrahim, k.b. samo, k. sopian and m.a. alghoul.  (2011).  daily global solar radiation estimate based on sunshine hours.  - international journal of mechanical and materials engineering.  6(1):75-80. 

md. sharafat hossain, nowshad amin, m.a. matin, m. mannir aliyu, takhir razykov, and kamaruzzaman sopian.  (2011).  a numerical study on the prospects of high efficiency ultra thin znxcd1-xs/cdte solar cell.  - chalcogenide letters.  8(4):263-U59. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and arafa awadalla.  (2011).  design of building integrated photovoltaic system for a low energy residences in hot dry climatic conditions in khartoum.  - research journal of applied sciences.  6(2):110-115. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and arafa awadalla.  (2011).  output energy of photovoltaic module directed at optimum slope angle in kuala lumpur, malaysia.  - research journal of applied sciences.  6(2):104-109. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and arafa awadalla.  (2011).  design of hybrid power system of renewable energy for domestic used in khartoum.  - journal of applied sciences.  11(12):2270-2275. 

m.i. fadhel, k.sopian, w.r.w.daud, m.a. alghoul.  (2011).  review on advanced of solar assisted chemical heat pump dryer for agriculture produce.  - renewable and sustainable energy reviews.  15:1152-1168. 

mohd. moniruzzaman, md. rafiqul islam, kamaruzzaman
sopian, saleem h. zaidi.  (2011).  an ism band antenna using clustered particle swarm optimization.  - journal of science, technology and environment.  2(1):68-70. 

p. poovanaesvaran, m.a. alghoul, k. sopian, n. amin, m.i. fadhel, m. yahya.  (2011).  design aspects of small-scale photovoltaic brackish water reverse osmosis (pv-bwro) system.  - desalination and water treatment.  27:210-223. 

mahmud m. alkilani, kamaruzzaman sopian and sohif mat.  (2011).  fabrication and experimental investigation of pcm capsules integrated in solar air heater.  - american journal of environmental sciences.  7(6):542-546. 

azami zaharim, kamaruzzaman sopian, nikos mastorakis, valeri mladenov.  (2011).  recent researches in education.  -

m. i. fadhel, ramez abdulwasea abdo, b. f. yousif, azami zaharim and k. sopian.  (2011).  thin-layer drying characteristics of banana slices in a force convection indirect solar drying.  - 6th iasme / wseas international conference on energy & environment (ee `11), cambridge, uk. 

a ibrahim, my othman, mh ruslan, s mat, a zaharim, k sopian.  (2011).  a pilot study of the building integrated photovoltaic thermal (bipvt) collector for commercial applications in malaysia.  - recent researches in geography, geology, energy, environment and biomedicine.  139-142. 

r. daghigh, m.h. ruslan, a.zaharim, k. sopian.  (2011).  effect of packing factor on the performance of pv/t water heater.  - 6th iasme / wseas international conference on energy & environment (ee `11), cambridge, uk. 

roonak daghigh, mohd hafidz ruslan, azami zaharim and kamaruzzaman sopian.  (2011).  monthly performance of a photovoltaic thermal (pv/t) water heating system.  - 6th iasme / wseas international conference on energy & environment (ee `11), cambridge(recent researches in energy and environment). 

m.h. yazdi, s. abdullah, i. hashim, a. zaharim and k. sopian.  (2011).  entropy generation analysis of the mhd flow over nonlinear permeable stretching sheet with partial slip.  - 6th iasme / wseas international conference on energy & environment (ee `11), cambridge, uk. 

a.w. shahrul, m.y. khairy, s.l. cheow, n. amin, s.h. zaidi, a. zaharim and k. sopian.  (2011).  effect of contact resistive variations of screen printed si solar cell.  - 6th iasme / wseas international conference on energy & environment (ee `11), cambridge, uk. 

ronak daghigh , adnan ibrahim, goh li jin, mohd hafidz ruslan, kamaruzzaman sopian.  (2011).  predicting the performance of amorphous and crystalline silicon based photovoltaic solar thermal collectors.  - energy conversion and management.  52: 1741-1747. 

s. sadrzadehrafiei, k. sopian, s. mat, ch. lim.  (2011).  determining the cost saving and emission reduction of optimum insulation thickness and air gap for building walls.  - australian journal of basic and applied sciences.  5(12):2287-2294. 

mohammed i. kabir, zahari ibarahim, kamaruzzaman sopian and nowshad amin.  (2011).  a review on progress of amorphous and microcrystalline silicon thin-film solar cells.  - recent patents on electrical engineering.  4(1):50-62. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian, and a. a. abass.  (2011).  optimum arrangement of photovoltaic systems in housing at khartoum: application of renewable energy in urban design.  - urban studies research.  Article ID 983742:1-6. 

o. saadatian, e. salleh, o.m. tahir, l.c. haw, k. sopian.  (2011).  a survey on campus sustainability assessment framework (csaf) in malaysia.  - journal of design+ built.  4(4):9-22. 

dalia attan, m.a. alghoul, b.b. saha, j. assadeq, k. sopian.  (2011).  the role of activated carbon fiber in adsorption cooling cycles.  - renewable and sustainable energy reviews.  15:1708-1721. 

mohd. moniruzzaman, md. rafiqul islam, kamaruzzaman sopian, saleem h. zaidi.  (2011).  cubic spline based particle swarm optimization for microstrip antennas.  - australian journal of basic and applied sciences.  5(12):804-807. 

ranj sirwan, yusoff ali, and kamaruzzaman sopian.  (2011).  effect of spray nozzle flow rate and saturation temperature on the heat transfer rate inside shell and tube evaporator.  - epc 2011 regional engineering postgraduate conference 2011, ukm, bangi, selangor d.e. 

ranj sirwan, yusoff ali, a. zaharim & k. sopian.  (2011).  effect of adding flash tank on the evaporator`s thermal load.  - proceedings of the 10th wseas international conference on system science and simulation in engineering (icossse `11),ukm 2011. 

m.s. hossain, m.m. aliyu, m.a. matin, m.a. islam, m.r. karim, t. razykov, k. sopian and n. amin.  (2011).  effect of different bsr in front and back contacts for znxcd1-xs/cdte solar cell.  - international journal of mechanical and materials engineering.  6(3):350-355. 

mohd hafidz ruslan, ahmad fudholi, mohd. yusof othman, mohd syahriman mohd azmi,muhammad yahya, azami zaharim, kamaruzzaman sopian.  (2011).  the double-pass solar dryer for drying palm oil fronds.  - proceedings of the 10th wseas international conference on system science and simulation in engineering (icossse `11),ukm. 

cheow siu leong, saleem zaidi, nowshad amin, azami zaharim, kamaruzzaman sopian.  (2011).  investigate the effect of thermal oxidation on crystalline silicon solar cells.  - proceedings of the 10th wseas international conference on system science and simulation in engineering (icossse `11),ukm. 

tri suyono, sohif mat, muhammad yahya, muhd. hafiz ruslan, azami zaharim, kamaruzzaman sopian.  (2011).  theoretical and experimental analysis of desiccant wheel performance for low humidity drying system.  - 10th wseas international conference on system science and simulation in engineering (icossse `11). 

p. ooshaksaraei, r. zulkifli, s. h. zaidi, m. alghoul, a. zaharim, k. sopian.  (2011).  terrestrial applications of bifacial photovoltaic solar panels.  - proceedings of the 10th wseas international conference on system science and simulation in engineering (icossse `11),ukm. 

mohammad h. yazdi, shahrir abdullah, ishak hashim and kamaruzzaman sopian.  (2011).  effects of viscous dissipation on the slip mhd flow and heat transfer past a permeable surface with convective boundary conditions.  - energies.  4: 2273-2294. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian, m.i. fadhel.  (2011).  measurement of total and spectral solar irradiance: overview of existing research.  - renewable and sustainable energy reviews.  15:1403-1426. 

m.a. shameri, m.a. alghoul, k. sopian, m. fauzi m. zain, omkalthum elayeb.  (2011).  perspectives of double skin facade systems in buildings and energy saving.  - renewable and sustainable energy reviews.  15(3):1468-1475. 

mahmud m. alkilani, k. sopian, m.a. alghoul, m. sohif, m.h. ruslan.  (2011).  review of solar air collectors with thermal storage units.  - renewable and sustainable energy reviews.  15:1476-1490. 

nilofar asim and kamaruzzaman sopian.  (2011).  perspective on nanomaterials in solar cell.  - international journal of nanoscience.  10(6):1197-1208. 

ahmad fudholi, mohd. yusof othman, mohd hafidz ruslan, muhammad yahya, azami zaharim, kamaruzzaman sopian.  (2011).  techno-economic analysis of solar drying system for seaweed in malaysia.  - proceedings of the 7th iasme/wseas international conference on energy, environment, ecosystems and sustainable development (eeesd `11) angers, france november 17-19, 2011. 

li jin goh, mohd yusof othman, sohif mat, hafidz ruslan, kamaruzzaman sopian.  (2011).  review of heat pump systems for drying application.  - renewable and sustainable energy reviews.  15:4788-4796. 

kamaruzzaman sopian, baharuddin ali, nilofar asim.  (2011).  strategies for renewable energy applications in the organization of islamic conference (oic) countries.  - renewable and sustainable energy reviews.  15:4706- 4725. 

khairul nizam abdul maulud, othman a. karim, kamaruzzaman sopian.  (2011).  potensi penjanaan tenaga ombak di malaysia.  - the malaysian surveyor.  46(3):36-44. 

nowshad amin, mannir a. aliyu, kamaruzzaman sopian, mohd yusof sulaiman, jamilah husna.  (2011).  annealing temperature optimization of cds window layer for use in cds/cdte solar cells.  - pv asia pacific conference 2011. 

nowshad amin, puvaneswaran chelvanathan, mohammad istiaque hossain, kamaruzzaman sopian.  (2011).  prospects of ultra thin cu(in,ga)se2 solar cells from numerical modeling.  - international conference on materials for advanced technologies (icmat 2011), 26 june -1 july,. 

kamaruzzaman sopian, goh li jin, mohd. yusof othman, saleem h. zaidi, mohd hafidz ruslan.  (2011).  advanced absorber design for photovoltaic thermal (pv/t) collectors.  - proceedings of the 7th iasme/wseas international conference on energy, environment, ecosystems and sustainable development (eeesd `11). 

ronak daghigh, adnan ibrahim, goh li jin, mohd hafidz ruslan, kamaruzzaman sopian.  (2011).  predicting the performance of amorphous and crystalline silicon based photovoltaic solar thermal collectors.  - energy conversion and management.  1741-1747. 

tamer khatib, a. mohamed, k. sopian, m. mahmoud.  (2011).  optimal sizing of building integrated hybrid pv/diesel generator system for zero load rejection for malaysia.  - energy and buildings.  43:3430-3435. 

f. hussain, m. y. h. othman, b. yatim, h. ruslan, k. sopian, z. anuar, s. khairuddin.  (2011).  fabrication and irradiance mapping of a low cost solar simulator for indoor testing of solar collector.  - journal of solar energy engineering.  133(4):Art. no. 044502. 

shahrul anizan, khairymazalee yusri, cheow siu leong,
nowshad amin, saleem zaidi and kamaruzzaman sopian.  (2011).  effects of the contact resistivity variations of the screen-printed silicon solar cell.  - american journal of engineering and applied sciences.  4(3):320-323. 

tamer khatib, azah mohamed, k sopian, m mahmoud.  (2011).  an iterative method for designing high reliable standalone pv systems at minimum cost for malaysia.  - international symposium on industrial electronics and applications isiea 2011. 

tamer khatib, azah mohamed, k sopian, m mahmoud.  (2011).  modeling of solar energy for malaysia using artificial neural networks.  - 11th wseas/iasme international conference on electric power systems, high voltages, electric machines (power `11) : recent researches in power systems and systems science. 

md. sharafat hossain, m.m. aliyu, m.a. matin, t. razykov, k. sopian and nowshad amin.  (2011).  numerical analysis on znxcd1-xs/cdte solar cells with different buffer layers, front and back contacts.  - 2011 ieee regional symposium on micro and nano electronics, rsm 2011; kota kinabalu, sabah. 

masjuri musa@othman, juhari ab. razak, md razali ayob, mohd afzanizam rosli, safarudin gazali herawan, kamaruzzaman sopian.  (2011).  development of model system for cost-effective pico-hydro turbine.  - 2011 3rd international symposium & exhibition in sustainable energy & environment, 1-3 june 2011, melaka. 

tamer khatib, azah mohamed, marwan mahmoud, k sopian.  (2011).  modeling of daily solar energy on a horizontal surface for five main sites in malaysia.  - international journal of green energy.  8(8):795-819. 

a. ibrahim, m. y. othman, m. h. ruslan, s. mat, a. zaharim and k. sopian.  (2011).  a pilot study of the building integrated photovoltaic thermal (bipvt) collector for commercial applications in malaysia.  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

n. asim, a. zaharim and k. sopian.  (2011).  the requirements and challenges in energy policy formulation for selected oic countries.  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

a. fudholi, m. y. othman, m. h. ruslan, m. yahya, a. zaharim and k. sopian.  (2011).  the effects of drying air temperature and humidity on the drying kinetics of seaweed.  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

a. fudholi, m. y. othman, m. h. ruslan, m. yahya, a. zaharim and k.sopian.  (2011).  design and testing of solar dryer for drying kinetics of seaweed in malaysia.  - 4th wseas int. conf. on emeseg`11, 2nd int. conf. on world-geo`11, 5th int. conf. on edeb`11; corfu island. 

r. daghigh, m.h. ruslan, k. sopian.  (2011).  advances in liquid based photovoltaic/thermal (pv/t) collectors.  - renewable and sustainable energy reviews.  15(8):4156-4170. 

saeid moghimi, s.mat, c.h. lim, a.zaharim & k. sopian.  (2011).  building energy index (bei) in large scale hospital: case study of malaysia.  - 4th wseas int. conf. on emeseg`11, 2nd int. conf. on world-geo`11, 5th int. conf. on edeb`11; corfu island. 

fatemeh azizpour, saeid moghimi, chinhaw lim, sohif mat, azami zaharim and kamaruzzaman sopian.  (2011).  thermal comfort assessment in large scale hospital: case study in malaysia.  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, a. zaharim and k. sopian.  (2011).  effect of cloudless sky parameters on global spectral solar radiation within 0.3-1.1 im region.  - 4th wseas international conference on engineering mechanics, structures, engineering geology, emeseg`11. 

a. r. ismail, m. y. m. yusof, k. sopian, m. r. a. rani, z. k. m. makhbul and n.k. makhtar.  (2010).  optimizing humidity level and illuminance to enhance worker performance in an automotive industry.  - journal of applied sciences.  10(14):1389-1396. 

m. k. mat desa, k. sopian, m. y. sulaiman.  (2010).  performance of silicon solar cell of various texturing methods.  - international conference on advances in renewable energy technologies (icaret 2010). 

m.y. sulaiman, u.c. ahamefula, k. sopian, z. ibarahim, m.a. alghoul, m.y. othman and n. amin.  (2010).  exploiting quantum confinement for future solar cell application.  - journal of energy and power engineering.  4(1):27-34. 

tamer t n khatib, a mohamed, n amin, k sopian.  (2010).  an improved indirect maximum power point tracking method for standalone photovoltaic system.  - 9th wseas international conference on applications of electrical engineering. 

goh li jin, adnan ibrahim, yee kim chean, roonak daghigh, hafidz ruslan, sohif mat, mohd. yusof othman and kamaruzzaman sopian.  (2010).  evaluation of single-pass photovoltaic-thermal air collector with rectangle tunnel absorber.  - american journal of applied sciences.  7(2):277-282. 

m. m. aliyu, a. islam, n. r. hamzah, m. r.karim, m. a. matin, k. sopian and n. amin.  (2010).  cdte-based flexible solar cells on metallic substrates: issues and prospects.  - international conference on advances in renewable energy technologies (icaret 2010). 

m.m. tahir, m.f.m. zain, k. sopian, i.m.s. usman, m.surat, n.a.g. abdullah, n.m. tawil, m.f.i. mohd-nor, a.i. che-ani.  (2010).  the development of a sustainably responsive ultra low energy terrace housing for the tropics incorporating the raised floor innovation.  - the 5th iasme/wseas international conference on energy and environment (ee?10). university of cambridge, cambridge, united kingdom. 23-25 february 2010.. 

salwan s. dihrab, j. abdulateef, kamarulzaman ibrahim, azami zaharim & k. sopian.  (2010).  theoretical study on a solar powered unitized regenerative fuel cell system.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

adnan ibrahim, roonak daghigh, goh li jin, mohd huzmin mohamed salleh, mohd yusof othman, mohd hafidz ruslan, sohif mat, kamaruzaman ibrahim, aazmi zaharim & k. sopian.  (2010).  thermal theoretical study on pv/t water based collectors.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

poorya ooshaksaraei, sohif mat, m. yahya , ahmad mahir razali, azami zaharim & k. sopian.  (2010).  solar absorption aqua-ammonia absorption system simulation base on climate of malaysia.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

r. daghigh, a. ibrahim, g. l. jin, m. h. ruslan, sohif mat, zulkifli mohd nopiah, azami zaharim, k. sopian.  (2010).  simulation of amorphous and crystalline silicon based photovoltaic thermal system.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

m. a. matin, m. m. aliyu, m. r. karim, m. y. sulaiman, k.sopian, nowshad amin.  (2010).  towards ultra thin and high efficiency cdte solar cell.  - international conference on advances in renewable energy technologies (icaret 2010). 

a. islam, m. m. aliyu, m. a. matin, n. r. hamzah, nowshad amin, m.y. sulaiman and k. sopian.  (2010).  investigation of cds:o/cdte solar cell structures from numerical analysis.  - international conference on advances in renewable energy technologies (icaret 2010). 

r daghigh, a ibrahim, g li jin, mh ruslan, sohif mat, zulkifli mohd nopiah, azami zaharim, k sopian.  (2010).  simulation of amorphous and crystalline silicon based photovoltaic thermal system.  - proceeding american-math`10 proceedings of the 2010 american conference on applied mathematics.  534-539. 

tamer t.n. khatib, a. mohamed, n. amin, k. sopian.  (2010).  an efficient maximum power point tracking controller for photovoltaic systems using new boost converter design and improved control algorithm.  - wseas transactions on power systems.  5(2):53-63. 

m.i. kabir, zahari ibrahim, kamaruzzaman sopian, nowshad amin.  (2010).  effect of structural variations in amorphous silicon based single and multi-junction solar cells from numerical analysis.  - solar energy materials & solar cells.  94:1542-1545. 

m.h. yazdi, s. abdullah, i. hashim, zulkifli mohd nopiah, azami zaharim & k. sopian.  (2010).  convective heat transfer of slip liquid flow past horizontal surface within the porous media at constant heat flux boundary conditions.  - proceedings of the american conference om applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

j.a. razak, y. ali, m.a. alghoul, mohammad said zainol, azami zaharim, k. sopian.  (2010).  application of crossflow turbine in off-grid pico hydro renewable energy system.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

poorya ooshaksaraei, baharudin ali, sohif mat, m. yahya, kamaruzaman ibrahim, azami zaharim & kamaruzaman sopian.  (2010).  large scale solar hot water heating systems for green hospital.  - proceedings of the amerizan conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

m. ibrahim, w.r.w. daud, kamaruzaman ibrahim, azami zaharim and kamaruzaman sopian.  (2010).  performance of solid-gas chemical heat pump subsystem of solar dryer.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

mohammad said zainol, siti meriam zahari, kamarulzaman ibrahim, azami zaharim & kamaruzaman sopian.  (2010).  detection of temporary change (tc) outliers in garch (1, 1) processes.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

mohammad said zainol, siti meriam zahari, kamaruzaman ibrahim, azami zaharim & kamaruzaman sopian.  (2010).  detecting level change outliers (lc) in garch (1, 1) processes.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

mohammad said zainol, siti meriam zahari, kamarulzaman ibrahim, azami zaharim, kamaruzzaman sopian.  (2010).  additive outliers (ao) and innovative outliers (io) in garch (1, 1) processes.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

a.u. ude, a.k. ariffin, k. sopian, a. arifin and c.h. azhari.  (2010).  the impact damage response of plain woven natural silk/epoxy laminated composite plates.  - international journal of engineering, science and technology.  2(5):128-140. 

dihrab s.s., sopian k..  (2010).  electricity generation of hybrid pv/wind systems in iraq.  - renewable energy.  35(6):1303-1307. 

m.m.ba-abbad, a.a.h.kadhum, a.b.mohamad, m.s. takriff and k.sopian.  (2010).  solar photocatalytic degradation of 2,4-dichlorophenol in water solution using zno catalyst.  - environmental science and technology conference (estec2009), kuala terengganu, 7-8 disember 2009. 

kamaruzzaman sopian, mohd yusof othman, adnan ibrahim, roonak daghigh and goh li jin.  (2010).  recent advances in photovoltaic thermal solar collectors.  - 11th world renewable energy congress ? wrec xi. 

salwan s. dihrab, a.m. razali, a. zaharim and k. sopian.  (2010).  studies on a single cell unitized regenerative fuel cells.  - proceedings of the wseas international conferences -- 9th wseas international conference on system science and simulation in engineering (icossse '10). 

a.m. razali, m.s. sapuan, k. ibrahim, a. zaharim and k. sopian.  (2010).  mapping of annual extreme wind speed analysis from 12 stations in peninsular malaysia.  - proceedings of the wseas international conferences -- 9th wseas international conferences on system science and simulation in engineering (icossse '10)--. 

m. a. alghoul, m.y.sulaiman, k.sopian, b.z. azmi, m. abd. wahab and a. zaharim.  (2010).  parametric analysis of multipurpose solar adsorption system- cooling and heating (dalam international journal of energy).  - proceedings of the 3rd iasme/wseas international conference on energy & environment - energy and environment iii. 

a. fudholi, k. sopian, m.h. ruslan, m.a. alghoul, m.y. sulaiman.  (2010).  review of solar dryers for agricultural and marine products.  - renewable and sustainable energy reviews.  14(1):1-30. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian, salmin s. al-shamali.  (2010).  solar photolytic degradation of aromatic chlorinated compound using zinc oxide nanoparticles prepared by sol-gel method.  - international conference on environment 2010 (icenv 2010). 

m.h. yazdi, s. abdullah, i. hashim and k. sopian.  (2010).  slip mhd flow over permeable stretching surface with chemical reaction.  - 17th australasian fluid mechanics conference. 

adnan ibrahim, mohd yusof othman, mohd hafidz ruslan, sohif mat, azami zaharim and kamaruzzaman sopian.  (2010).  experimental studies on water based photovoltaic thermal collector (pvt).  - proceedings of the wseas international conferences, 9th wseas international conferences on system science and simulation in engineering (icossse '10), iwate prefectural university, japan. 

goh li jin, hafidz ruslan, sohif mat, mohd. yusof othman, azami zaharim and kamaruzzaman sopian.  (2010).  experiment study on single-pass photovoltaic-thermal (pv/t) air collector with absorber.  - proceedings of the wseas international conferences, 9th wseas international conferences on system science and simulation in engineering (icossse '10), iwate prefectural university, japan. 

a. fudholi, m.h. ruslan, m.y. othman, m. yahya, supranto, a. zaharim and k. sopian.  (2010).  collector efficiency of the double-pass solar air collectors with fins.  - proceedings of the wseas international conferences, 9th wseas international conferences on system science and simulation in engineering (icossse '10), iwate prefectural university, japan. 

a.w. shahrul, s.l. cheow, m.y. khairy, n. amin, a. zaharim and k. sopian.  (2010).  effect of rapid thermal annealing in the performance of si solar cell.  - proceedings of the wseas international conferences, 9th wseas international conferences on system science and simulation in engineering (icossse '10), iwate prefectural university, japan. 

arfidian rachman, sohif mat, taib iskandar, m. yahya, azami zaharim and kamaruzzaman sopian.  (2010).  solar air conditioning system using desiccant wheel technology.  - proceedings of the wseas international conferences, 9th wseas international conferences on system science and simulation in engineering (icossse '10), iwate prefectural university, japan. 

a. fudholi, m.h. ruslan, m.y. othman, m. yahya, supranto, a.zaharim and k. sopian.  (2010).  experimental study of the double-pass solar air collector with staggered fins.  - proceedings of the wseas international conferences, 9th wseas international conferences on system science and simulation in engineering (icossse '10), iwate prefectural university, japan. 

nowshad amin, m. a. matin, m. m. aliyu, m. a. alghoul, m. r. karim, and k. sopian.  (2010).  prospects of back surface field effect in ultra-thin high-efficiency cds/cdte solar cells from numerical modeling.  - international journal of photoenergy.  2010:1-8. 

nowshad amin, mohammad istiaque hossain, puvaneswaran chelvanathan, a.s.m. mukter uzzaman, kamaruzzaman sopian.  (2010).  prospects of cu2znsns4 (czts) solar cells from numerical analysis.  - 6th ieee international conference on electrical and computer engineering, icece 2010, dhaka, bangladesh. 

r. zulkifli, k. sopian, s. abdullah, m. s. takriff.  (2010).  analysis of pulse air jet flow profiles.  - international review of mechanical engineering.  4(5):495-501. 

r. daghigh, m.h. ruslan, a. zaharim and k. sopian.  (2010).  air source heat pump system for drying application.  - proceedings of the wseas international conferences, 9th wseas international conferences on system science and simulation in engineering (icossse '10), iwate, japan. 

albert uchenna ude, ahmad kamal ariffin, kamaruzzaman sopian and che husna azhari.  (2010).  energy attenuation capability of woven natural silk/epoxy composite plates subjected to drop-weight impacts.  - arpn journal of engineering and applied sciences.  5(8):75-87. 

n. amin, m. a. matin, m. m. aliyu, a.s.m m. zaman, k. sopian and m. y. sulaiman.  (2010).  ultra thin absorber layer with novel back contact for high efficiency cds/cdte solar cell.  - world renewable energy congress xi. 

nowshad amin, mohammad istiaque hossain, puvaneswaran chelvanathan, m. r. karim and kamaruzzaman sopian.  (2010).  benefits of cigs/cdte hetero-structure based solar cells by scaps.  - world renewable energy congress xi. 

n. amin, m. m. aliyu, m. a. matin, a. islam, m. r. karim, m. y. sulaiman and k. sopian.  (2010).  prospects of ternary cdznte in a graded bandgap thin film solar cells.  - world renewable energy congress xi. 

nowshad amin, m. i. kabir, n. r. hamzah, zahari ibarahim and kamaruzzaman sopian.  (2010).  effect of hydrogenated microcrystalline silicon oxide (?c-sio:h) in amorphous si based thin film solar cells.  - world renewable energy congress xi. 

k.n. abdul maulud, o.a karim, k. sopian & z. md. darus.  (2010).  marine power generation in west coast of peninsular malaysia.  - international technical conference cau-ukm, seoul korea selatan. 

nowshad amin, puvaneswaran chelvanathan, mohammad istiaque hossain, m. r. karim and kamaruzzaman sopian.  (2010).  investigation of band gap grading in cu(in,ga)se2 solar cells by numerical modeling.  - world renewable energy congress xi. 

mohd yusof othman, adnan ibrahim, goh li jin, mohd hafidz ruslan and kamaruzzaman sopian.  (2010).  photovoltaic-thermal (pv/t) technology - the future energy technology.  - world renewable energy congress xi. 

f.jahanshah, h.r. fallah, k.sopian, s.h.zaidi.  (2010).  simulation of implantation impact on two dimensional texturing in silicon solar cells.  - 18th international conference on photochemical conversion and storage of solar energy, ips-18, seoul, korea, 2010. 

lim chin haw, sohif m, yusof sulaiman, kamaruzzaman sopian.  (2010).  energy efficiency features and renewable energy technologies in malaysian office buildings.  - world renewable energy congress xi. 

m. a. matin, nowshad amin, azami zaharim and kamaruzzaman sopian.  (2010).  a study towards the possibility of ultra thin cds/cdte high efficiency solar cells from numerical analysis.  - wseas transactions on environment and development.  8(6): 571-580. 

m.i. fadhel, k. sopian, w.r.w. daud.  (2010).  performance analysis of solar-assisted chemical heat-pump dryer.  - solar energy.  84:1920-1928. 

ronak daghigh, mohd hafidz ruslan, mohamad yusof sulaiman, kamaruzzaman sopian.  (2010).  review of solar assisted heat pump drying systems for agricultural and marine products.  - renewable and sustainable energy reviews.  14:2564-2579. 

a.w. shahrul, s.l. cheow, m.y. khairy, a.g.n. salwa, n. amin and k. sopian.  (2010).  the optimisation aspect of screen printed si solar cell.  - ecs transaction.  27(1):1117-1122. 

s. l. cheow, a. g. n. salwa, m. y. khairy, a. w. shahrul, n. amin, k. sopian, and s. h. zaidi.  (2010).  optimisation on junction formation by three-stack furnace pocl3 diffusion and analysis on solar cell performance.  - ecs transaction.  27(1):1053-1059. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2010).  solar photocatalytic degradation of environmental pollutants using zno prepared by sol-gel: 2, 4-dichlorophenol as case study.  - international journal of thermal & environmental engineering.  1(1):37-42. 

salvador guel sandoval, m. khizar, j. anderson, r. p. manginell, g. m. peake,n. amin, k. sopian, t. rotter, g. balakrishnan, s. r. j. brueck, and saleem h. zaidi.  (2010).  characterization of thin gaas films grown on nanostructured silicon substrates.  - 35th ieee photovoltaic specialist conference, honolulu, haiwaii, 20 - 23 june, 2010. 

salvador guel sandoval, m. khizar, d. modisette, j. anderson,ron manginell,nowshad amin, kamaruzzaman sopian, and saleem h. zaidi.  (2010).  optical absorption in microstructured crystalline silicon thin films.  - 35th ieee pv specialist conference, 20 -25 june, honolulu, hawaii, usa.. 

lim chin haw & kamaruzzaman sopian.  (2010).  an approach to zero energy homes.  - 13th national housing and property summit 2010. 

t.m.razykov, n. amin, g.contreras-puente, b.ergashev, c.s.ferekides, d. y.goswami, m.k.hakkulov, a.hubbimov, s.jimenez-sandoval, k.m.kouchkarov, k.sopian, h.s.ullal , h.m.upadhyaya.  (2010).  is cdcl2 treatment necessary for thin-film cds-cdte solar cells?.  - 35th ieee photovoltaic specialists conference, hawaii, usa. 

kamaruzzaman sopain.  (2010).  manufacturing of pv panels- cottage industry approach.  - international seminar in britain - world renewable energy congress & (wren). 

n. amin, m. i. hossain, p. chelvanathan, m. r. karim, t. razykov and k. sofian.  (2010).  advantages of indium sulphide as an alternative buffer layer in cigs solar cells from numerical analysis.  - 35th ieee photovoltaic specialists conference, hawaii, usa. 

wan ramlee, ahmad sairi, azami zaharim, and kamaruzzaman sopian.  (2010).  basic perceptions of integrated waste management concepts in majlis perbandaran kajang malaysia.  - 4th international conference on energy & development, environment & biomedicine, corfu island, greece, july 22-24, 2010. 

ude, a.u.*, sopian, k., azhari, c.h..  (2010).  energy attenuation capability of woven natural silk (wns)/epoxy composites plates subjected to drop-weight impacts.  - tms 2010-139th annual meeting and exhibition; seattle, wa; 14 february 2010 through 18 february 2010. 

cheow siu leong, m. y. khairy, a. w. shahrul,
n. amin, k. sopian, saleem h. zaidi.  (2010).  emitter formation through pocl3 diffusion in crystalline silicon solar cell.  - international conference on advances in renewable energy technologies (icaret 2010). 

r.daghigh, m.h.hafidz, k.sopian.  (2010).  effect of collector area on performance of pv/t water heater.  - international conference on advances in renewable energy technologies (icaret 2010). 

f. jahanshah, k. sopian, s.h. zaidi, m.y. othman, n. amin, n. asim.  (2009).  modeling the effect of pn junction depth on the output of planer and rectangular textured solar cells.  - american journal of applied science.  667-671. 

adnan ibrahim, goh li jin, roonak daghigh, mohd huzmin mohamed salleh, mohd yusof othman, mohd hafidz ruslan, sohif mat, kamaruzzaman sopian.  (2009).  hybrid photovoltaic thermal (pv/t) air and water based solar collectors suitable for building integrated applications.  - american journal of environmental sciences.  618-624. 

adnan ibrahim, mohd hafidz ruslan, sohif mat, mohd yusof othman, azami zaharim, k. sopian.  (2009).  predicting the characteristics of a special designed photovoltaic thermal collector absorber (pvt).  - proceedings of the 3rd wseas int. conf. on renewable energy sources.  336-341. 

m. a. matin, nowshad amin, aminul islam, kamaruzzaman sopian and kok-keong chong.  (2009).  effect of structural variation in cadmium telluride thin film solar cells from numerical analysis.  - 24th european photovoltaic solar energy conference, 21-25 september 2009, hamburg, germany. 

alkilani mahmud, sopian k., alghoul m. a., mat sohif and abdualbasit m. graisa.  (2009).  using a paraffin wax-aluminium compound as a thermal storage material in a solar air heater.  - arpn journal of engineering and applied sciences.  4(10):74-77. 

nowshad amin, puvaneswaran chelvanathan and kamaruzzaman sopian.  (2009).  numerical analysis of thickness and temperature effect on copper-indium-gallium-diselenide (cigs) solar cell with various buffer layers by scaps.  - the 19th international photovoltaic science and engineering conference. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah and mohd sobri takriff.  (2009).  correlations between local nusselt number and reynolds for steady and pulsating circular jet.  - international journal of engineering and technology.  6(1): 9-20. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah and mohd sobri takriff.  (2009).  correlations between local nusselt number and reynolds number for steady and pulsating circular jet.  - international engineering convention, damascus, syria, 11-14 may 2009. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah and mohd sobri takriff.  (2009).  flow structures of circular air jet at steady and different pulsating frequency.  - international engineering convention, damascus, syria, 11-14 may 2009. 

khairul nizam abdul maulud, othman a. karim, kamaruzaman sopian, siti nur farhana abdul aziz.  (2009).  determination of tidal energy resource location in east cost of peninsular malaysia using geographical information system.  - proceeding of the 3rd wseas international conference on energy planning, energy saving, environmental education (epses ?09), university of la laguna, tenerife, canary islands, spain. 

mohammad syafiq sapuan, ahmad mahir razali, kamarulzaman ibrahim, nor azura md ghani, azami zaharim & kamaruzzaman sopian.  (2009).  investigation of wind energy potential in kuala terengganu, malaysia.  - seminar on engineering mathematics 2009 (emas`09). 

dihrab s.s., sopian k., alghoul m.a., sulaiman m.y..  (2009).  review of the membrane and bipolar plates materials for conventional and unitized regenerative fuel cells.  - renewable and sustainable energy reviews. 

abdulateef j.m., sopian k., alghoul m.a., sulaiman m.y..  (2009).  review on solar-driven ejector refrigeration technologies.  - renewable and sustainable energy reviews. 

hassan n.s.m., daud w.r.w., sopian k., sahari j..  (2009).  water management in a single cell proton exchange membrane fuel cells with a serpentine flow field.  - journal of power sources.  193(1):249-257. 

zonooz m.r.f., nopiah z.m., mohd.yusof a., sopian k..  (2009).  a review of markal energy modeling.  - european journal of scientific research. 

nowshad amin, chin wen lung, kamaruzzaman sopian.  (2009).  a practical field study of various solar cells on their performance in malaysia.  - renewable energy.  34(8):1939-1946. 

ebrahim m. ali alfegi, kamaruzzaman sopian, mohd yusof hj. othman, baharudin bin yatim.  (2009).  the effect of flow rates on the performance of finned single pass, double duct photovoltaic thermal solar air heaters.  - european journal of scientific research.  25(2):339-344. 

ismail a.r., manap a.h.a.a., wahab d.a., zulkifli r., makhtar n.k., sopian k..  (2009).  concurrent engineering approach in designing pressure vessel.  - european journal of scientific research.  30(2):245-252. 

alghoul m.a., poovanaesvaran p., sopian k., sulaiman m.y..  (2009).  review of brackish water reverse osmosis (bwro) system designs.  - renewable and sustainable energy reviews.  13(9):2661-2667. 

kamaruzzaman sopian, haris, d. rouss & m.a. yusof.  (2009).  strategies for long term cost reduction of building integrated photovoltaic (bipv) development in malaysia.  - proceedings of 2nd bangi world conference on environmental management, 13-14 september 2004 (2nd: bangi). 

sopian, k; razak, ja
.  (2009).  pico hydro: clean power from small streams.  - energy problems and environmental engineering. 

lim chin haw, kamaruzzaman sopian, yusof sulaiman, m. hafidz, m. yahya.  (2009).  assessment of public perception on photovoltaic application in malaysia urban residential areas using trudgill`s framework for analysis.  - european journal of social sciences.  8(4):589-603. 

m.a. alghoul, m.y. sulaiman, k. sopian, b.z. azmi.  (2009).  performance of a dual-purpose solar continuous adsorption system.  - renewable energy.  34(3):920-927. 

lim chin haw, kamaruzzaman sopian, yusof sulaiman, m. hafidz, m. yahya.  (2009).  european journal of social sciences.  - assessment of public perception on photovoltaic application in malaysia urban residential areas using trudgill`s framework for analysis.  8(4):589-603. 

nor habibi saadah musa, huda abdullah, sahbudin shaari, nowshad amin, kamaruzzaman sopian.  (2009).  effect of annealing temperature on the properties of zns thin film grown by chemical bath deposition (cbd) technique for pv application.  - international conference on materials for advanced technologies 2009, singapore.. 

a.lennie, h.abdullah, s.shaari and k.sopian.  (2009).  fabrication of single layer sio2 and si3n4 as antireflection coating on silicon solar cell using silvaco software.  - american journal of applied sciences.  6 (12): 2043-2049. 

zuhairuse md darus, afaq chawdar, othman abdul karim, khairul nizam abdul maulud & kamaruzaman sopian.  (2009).  potential for adoption of renewable energy as alternative energy sources in developing region.  - proceeding of the 2nd wseas international conference on landscape architecture (la `09). 

siti khadijah najid, azami zaharim, ahmad mahir razali & kamaruzzaman sopian.  (2009).  using frechet and weibull distribution in modelling malaysian wind speed data.  - seminar on engineering mathematics 2009 (emas`09). 

m. ibrahim, k. sopian, w.r.w. daud.  (2009).  experimental and theoretical study on the performance of solid-gas chemical heat pump subsystem of solar dryer.  - environmental science and technology conference (estec2009) kuala terengganu malaysia, december 7-8, 2009. 

r. daghigh, a. ibrahim, g. li jin, m.h. ruslan, m.y.sulaiman and k. sopian.  (2009).  building integrated photovoltaic/thermal (bipvt) water based systems.  - environmental science and technology conference (estec2009) kuala terengganu malaysia, december 7-8, 2009. 

roonak daghigh and kamaruzzaman sopian.  (2009).  the impact of air exchange effectiveness on thermal comfort in an air-conditioned office.  - american journal of applied sciences.  6(11):1974-1981. 

adnan ibrahim, goh li jin, roonak daghigh, mohd huzmin mohamed salleh, mohd yusof othman, mohd hafidz ruslan, sohif mat and kamaruzzaman sopian.  (2009).  hybrid photovoltaic thermal (pv/t) air and water based solar collectors suitable for building integrated applications.  - american journal of environmental sciences.  5(5):618-624. 

ebrahim m. ali alfegi, kamaruzzaman sopian, mohd yusof hj othman and baharudin bin yatim.  (2009).  mathematical model of double pass photovoltaic thermal air collector with fins.  - american journal of environmental sciences.  5(5):592-598. 

siti khadijah najid, azami zaharim, ahmad mahir, kamaruzzaman ibrahim & kamaruzzaman sopian.  (2009).  penyuaian taburan kebarangkalian terhadap data halaju angin di johor.  - prosiding simposium kebangsaan sains matematik ke-17 (sksm17), jilid 1. 

a.r. ismail, m.r.a. rani, z.k.m. makhbul, k. sopian, b.m. deros.  (2009).  thermal comfort assessment and optimization of environmental factors by using taguchi method.  - american journal of applied sciences.  6(9):1731-1741. 

mohd zuki salleh, roslinda nazar, azami zaharim & kamaruzzan sopian.  (2009).  free convection boundary layer flow near the lower stagnation point of a sphere with newtonian heating in a micropolar fluid.  - proceedings of the 4th wseas international conference on continuum mechanics (cm`09), cambridge, uk. 

a.r. ismail, n. jusoh, r. zulkifli, k. sopian and b.m. deros.  (2009).  thermal comfort assessment: a case study at malaysian automotive industry.  - american journal of applied sciences.  6(8):1495-1501. 

nowshad amin, kamaruzzaman sopian, s. salwan and m.a. alghoul.  (2009).  pv power unitized regenerative fuel cell system performance in malaysia.  - the renewable energy world conference & expo north america 2009, las vegas, nv, usa. 

fariborz jahanshah, muhammad khizar, dave modisette, ron manginell, john anderson, nowshad amin, kamaruzzaman sopian, saleem h. zaidi.  (2009).  investigation of optical absorption in thin-film si/ge solar cells.  - 34th ieee photovoltaic specialists conference (pvsc); june 2009, philadelphia, usa. 

rajiv prinja, nowshad amin, kamaruzzaman sopian, saleem h. zaidi.  (2009).  electroplating of plasma doped back surface contact silicon solar cells.  - 34th ieee photovoltaic specialists conference (pvsc); june, philadelphia, usa. 

nowshad amin, mahmud abdul matin bhuiyan, kamaruzzaman sopian.  (2009).  investigation of different buffer layers, front and back contacts for cds/cdte pv from numerical analysis.  - 34th ieee photovoltaic specialists conference (pvsc); june 7-12, 2009, philadelphia, usa. 

nowshad amin, lam zi yi, kamaruzzaman sopian.  (2009).  microcontroller based smart charge controller for stand-alone solar photovoltaic power systems.  - 34th ieee photovoltaic specialists conference (pvsc), philadelphia, usa. 

f. jahanshah , k. sopian, y. othman, h.r. fallah.  (2009).  pn junction depth impact on short circuit current of solar cell.  - solar energy.  83(9):1629-1633. 

mohd zamri ibrahim, kamaruzzaman sopian, wan ramli wan daud.  (2009).  experimental performance of pv-wind-battery hybrid system for hydrogen production in tropical climatic condition through water electrolysis: a case study for terengganu state, malaysia.  - reric international energy journal.  10(1):11-18. 

a.s. hussein, m. ibrahim, azami zaharim and k. sopian.  (2009).  predicting the performance of chemical heat pump with various metallic-salts drying system.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

m.a. alghoul, h. khamies, m.y. sulaiman, j. assadeq, m. yahya, ebrahim m. alfegi, a. zaharim and k. sopian.  (2009).  impact of aerosol optical depth on solar radiation budget.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

m.a. alghoul, jalal. assadeq, m.y. sulaiman, h. khamies, m. yahya, ebrahim m. alfegi, a. zaharim and k. sopian.  (2009).  evaluation of water vapour thickness on solar radiation budget.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

zafri azran abdul majid, mohd yusof othman, mohd hafidz ruslan, sohif mat, baharudin ali, azami zaharim and k. sopian.  (2009).  multifunctional solar thermal collector for heat pump application.  - proceedings of the 3rd wseas int. conf. on renewable energy spurces tenerife canary island, spain, july 1-3 2009. 

adnan ibrahim, mohd hafidz ruslan, sohif mat, mohd yusof othman, azami zaharim and k. sopian.  (2009).  predicting the characteristics of a special designed photovoltaic thermal cllector absorber (pvt).  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

supranto, m. h. ruslan, m.a.alghoul, m.y. sulaiman, azami zaharim and k. sopian.  (2009).  estimating the a solar assisted drying system capacity for marine products.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

supranto, mohammad hafidz ruslan, muhamad yahya, mohd yusof sulaiman, mohamad al ghoul, azami zaharim and k. sopian.  (2009).  some design aspects of the assisted solar drying system with double-pass finned solar collectors.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

m.y.khairy, a.g.n.salwa, s.l.cheow, a.w.shahrul, m.y.othman, m.y.sulaiman, azami zaharim and k. sopian.  (2009).  enhancing efficiency of thin film silicon solar cell.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

r. dadhigh, m.h. ruslan , azami zaharim and k. sopian.  (2009).  amorphous silicon based photovoltaic thermal for building integrated applications.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

a.w. shahrul, m.y. khairi, a.g.n. salwa, s.l. cheow, azami zaharim, k. sopian and saleem h. zaidi.  (2009).  several aspects on the optimisation of screen printed si solar cell.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

a.g.n.salwa, s.l.cheow, m.y.khairy, a.w.shahrul, azami zaharim and k. sopian.  (2009).  effect of plasma enhanced chemical deposition on the textured c-si solar cells properties.  - proceedings of the 3rd wseas international conference on reneweable energy sources tenerife canary island, spain, july 1-3 2009. 

cheow siu leong, nowshad amin, m.y. sulaiman, azami zaharim, k.sopian and saleem h. zaidi.  (2009).  some key issues in the processing and fabrication of higher efficiencies silicon solar cells.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

m. yahya, m.h. ruslan, m. y. othman, b. yatim, m.y. sulaiman, s. mat, lim. c. h, m. a. alghoul, azami zaharim and k. sopian.  (2009).  evaluation of energy requirement for drying of green tea using a solar assited drying system (v-groove solar collector).  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

m. yahya, m. y. othman, s.mat, lim. c.h., m. a. alghoul, azami zaharim and k. sopian.  (2009).  incorporation of two columns of desiccant beds into a solar drying system: evaluation of drying system performances.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

azimin samsul mohd tazilan, zafri arzan, kamarul afizi kosman, prof.emiritus dato` hood salleh, prof dr kamarulzaman sopian, ahmad rasdan ismail, prof dr ibrahim komoo, prof dr. mohd tajuddin rasdi.  (2009).  ecscubet: eco-street micro-architecture cubicle in zero.  - pengumpulan maklumat asas. 

r. daghigh, m.h. ruslan, m.a. alghoul, azami zaharim and k. sopian.  (2009).  design of nomogram to predict performance of heat pump dryer.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

a.m. razali, m.s. sapuan, k. ibrahim, a.r. ismail, a. zaharim and k. sopian.  (2009).  fitting of weibull distribution to study wind energy potentialin kuala terengganu, malaysia.  - proceedings of the 14th wseas international conference on applied mathematics (math `09). 

m. a. m. sobri, nowshad amin, s. sapeai, azami zaharim and k. sopian.  (2009).  effect of different lamination temperature on the quality of solar module.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

jasim abdulateef, mohammed alghoul, azami zaharim and kamaruzzaman sopian.  (2009).  experimental investigation on solar absorption refrigeration system in malaysia.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

ebrahim m. ali alfegi, mohd. yusof othman, baharudin yatim, azami zaharim and kamaruzzaman sopian.  (2009).  cost analysis of a single pass, double duct photovoltaic thermal solar air heater.  - proceedings of the 3rd wseas int. conf. on renewable energy sources tenerife canary island, spain, july 1-3 2009. 

ayu wazira azhari, azami zaharim, kamaruzzaman sopian and abdul haqi ibrahim.  (2009).  cloud based models in determination of solar radiation.  - proceedings of the 3rd wseas international conference on renewable energy sources, tenerife canary island, spain, july 1-3 2009. 

m. a. matin, nowshad amin, azami zaharim and kamaruzzaman sopian.  (2009).  ultra thin high efficiency cds/cdte thin film solar cells from numerical snalysis.  - proceedings of the 8th wseas int. conf. on non-linear analysis, non-linear systems and chaos, tenerife canary island, spain, july 1-3 2009. 

m. i. kabir, nowshad amin, azami zaharim and kamaruzzaman sopian.  (2009).  effect of energy bandgap of the amorphous silicon carbide (a-sic: h) layers on a-si multijuntion solar cells from numerical analysis.  - proceedings of the 8th wseas int. conf. on non-linear analysis, non-linear systems and chaos, tenerife canary island, spain, july 1-3 2009. 

azami zaharim, siti meriam zahid, mohammad said zainol and k. sopian.  (2009).  detection of level change (lc) outlier in garch (1, 1) processes.  - proceedings of the 8th wseas int. conf. on non-linear analysis, non-linear systems and chaos. 

m. ibrahim, k. sopian, w.r.w. daud and m.a. alghoul.  (2009).  an experimental analysis of solar-assisted chemical heat pump dryer.  - international journal of low-carbon technologies.  4(2):78-83. 

kamaruzzaman sopian, mohd yusof sulaiman, mohd yusof othman, sohif mat, muhamad yahya, mohamad a. alghoul, baharudin ali, lim chin haw, mohd hafidz ruslan, azami zaharim.  (2009).  advances in solar assisted drying systems for agricultural produce.  - 4th iasme / wseas international conference on energy & environment (ee`09). 

j. m. abdulateef, m. y. sulaiman, lim chin haw, baharudin ali, sohif mat, muhammad yahya, m. a. alghoul, a, zaharim and k. sopian.  (2009).  an economic viability analysis and optimization of solar cooling system.  - 4th iasme / wseas international conference on energy & environment (ee`09). 

azami zaharim, siti khadijah najid, ahmad mahir razali and kamaruzzaman sopian.  (2009).  analyzing malaysian wind speed data using statistical distribution.  - 4th iasme / wseas international conference on energy & environment (ee`09),. 

m. ibrahim, k. sopian, a. s. hussein, w.r.w. daud and a. zaharim.  (2009).  experimental performance of solid-gas chemical heat pump in solar chemical heat pump dryer.  - 4th iasme / wseas international conference on energy & environment (ee`09). 

kamaruzzaman sopian, ahmad fudholi, mohd hafidz ruslan, mohd yusof sulaiman, mohammad ahmed alghoul, muhammad yahya,nowshad amin, lim chin haw and azami zaharim.  (2009).  hydrogen production from combined wind/pv energy hybrid system in malaysia.  - 4th iasme / wseas international conference on energy & environment (ee`09). 

salwan s. dihrab, a. zaharim and k. sopian.  (2009).  membrane catalysts and bipolar plate materials for proton exchange membrane fuel cell.  - 4th iasme / wseas international conference on energy & environment (ee`09). 

kamaruzzaman sopian, ahmad fudholi, mohd hafidz ruslan, mohd yusof sulaiman, mohammad ahmed alghoul, muhammad yahya, nowshad amin, lim chin haw and azami zaharim.  (2009).  optimization of a stand-alone wind/pv hybrid system to provide electricity for a household in malaysia.  - 4th iasme / wseas international conference on energy & environment (ee`09). 

r. daghigh, k. sopian, m.h. ruslan, m. a. alghoul, c. h. lim, s. mat, b. ali, m. yahya, a. zaharim, m.y. sulaiman.  (2009).  survey of hybrid solar heat pump drying systems.  - 4th iasme / wseas international conference on energy & environment (ee`09). 

a. r. ismail, y. c. soon, s. abdullah, r. zulkifli, k. sopian, m.n.a. rahman.  (2009).  reverse engineering in fabrication of piston crown.  - european journal of scientific research.  29(1):136-146. 

azami zaharim, siti khadijah najid, ahmad mahir razali, kamaruzzaman sopian.  (2009).  wind speed analysis in the east coast of malaysia.  - european journal of scientific research.  32(2):208-215. 

m. ibrahim, k. sopian, w. r. w. daud, m. a. alghoul, m. yahya, m. y. sulaiman, and a. zaharim.  (2009).  solar chemical heat pump drying system for tropical region.  - wseas transactions on environment and development.  5(5):404-413. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah and mohd sobri takriff.  (2009).  comparison of local nusselt number between steady and pulsating jet at different jet reynolds number.  - wseas transactions on environment and development.  5(5):384-393. 

m.z. ibrahim, k. sopian, r. zailan and a.m. muzathik.  (2009).  the potential of a small scale environmentally friendly renewable hybrid photovoltaic and wind energy generation system at terengganu state coastal area.  - international energy journal.  10:81-92. 

sohif mat,kamaruzzaman sopian, mazlin mokhtar, baharuddin ali, halimaton saadiah hashim, abdul khalim abdul rashid, muhammad fauzi mohd zain, nurakmal goh abdullah.  (2009).  managing sustainable campus in malaysia - organisational approach and measures.  - european journal of social sciences.  8(2):201-214. 

mohd nizam ab rahman, ruhizan mohd yasin, kamaruzzaman sopian, ahmad rasdan ismail, juhari ab razak.  (2009).  initial study on increasing productivity of orang asli in malaysia.  - european journal of social sciences.  8(3):441-448. 

a. g. hussin, s. f. hassan, y. z. zubairi, a. zaharim, k. sopian.  (2009).  an approximation of error concentration parameter for simultaneous circular functional relationship model.  - european journal of scientific research.  27(2):258-263. 

azami zaharim, mokhtar shaharuddin, mohd. jailani mohd. nor, othman a. karim, kamaruzzaman sopian.  (2009).  relationships between airborne particulate matter and meteorological variables using non-decimated wavelet transform.  - european journal of scientific research.  27(2):308-312. 

a.a. shariff, a. zaharim, k. sopian.  (2009).  the comparison logit and probit regression analyses in estimating the strength of gear teeth.  - european journal of scientific research.  24(4):548-553. 

m.a. alghoul, m.y. sulaiman, k. sopian, m. yahya, and a. zaharim.  (2009).  experimental and simulation study on malaysian activated carbon as adsorbent in a dual purpose solar system.  - wseas transactions on environment and development.  5(3):331-339. 

kamaruzzaman sopian, mohd zamri ibrahim, wan ramli wan daud, mohd yusof othman, baharuddin yatim, nowshad amin.  (2009).  performance of a pv-wind hybrid system for hydrogen production.  - renewable energy.  34(8):1973-1978. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah, mohd sobri takriff.  (2009).  comparison of local nusselt number for steady and pulsating circular jet at reynolds number of 16000.  - european journal of scientific research.  29(3):369-378. 

salwan s. dihrab, k. sopian, m.a. alghoul, m.y. sulaiman.  (2009).  review of the membrane and bipolar plates materials for conventional and unitized regenerative fuel cells.  - renewable and sustainable energy reviews.  13(6-7):1663-1668. 

j.m. abdulateef, k. sopian, m.a. alghoul, m.y. sulaiman.  (2009).  review on solar-driven ejector refrigeration technologies.  - renewable and sustainable energy reviews.  13(6-7):1338-1349. 

a. lennie, h. abdullah, s.m.mustaza, k.sopian.  (2009).  photovoltaic properties of si3n4 layer on silicon solar cell using silvaco software.  - european journal of scientific research.  29(4):447-453. 

mustafa ibrahim, k. sopian and w.r.w. daud.  (2009).  study of the drying kinetics of lemon grass.  - american journal of applied sciences.  6(6):1070-1075. 

a. r. ismail, m. r .a. rani, z. k. m. makhbul, k. sopian, m.m. tahir, j.a. ghani, c. meier.  (2009).  optimization of environmental factors: a study at malaysian automotive industry.  - european journal of scientific research.  27(4):500-509. 

a. r. ismail. n. jusoh, k. sopian, i.m.s. usman, r. zulkifli, m.n.a. rahman.  (2009).  thermal comfort assessment: a study at malaysia car manufacturer.  - european journal of scientific research.  27(4):510-523. 

m.h. yazdi, s. abdullah, i. hashim, k. sopian, a. zaharim.  (2009).  entropy generation analysis of liquid fluid past embedded open parallel microchannels within the surface.  - european journal of scientific research.  28(3):462-470. 

roonak daghigh and kamaruzzaman sopian.  (2009).  effective ventilation parameters and thermal comfort study of air-conditioned offices.  - american journal of applied sciences.  6(5):943-951. 

m. m. alkilani, k. sopian, sohif mat, m. a. alghoul.  (2009).  output air temperature prediction in a solar air heater integrated with phase change material.  - european journal of scientific research.  27(3):334-341. 

sulaiman shaari, kamaruzzaman sopian, nowshad amin and mohd nizan kassim.  (2009).  the temperature dependence coefficients of amorphous silicon and crystalline photovoltaic modules using malaysian field test investigation.  - american journal of applied sciences.  6(4):586-593. 

f. jahanshah, k. sopian, s.h. zaidi, m.y. othman, n. amin and n. asim.  (2009).  modeling the effect of p-n junction depth on the output of planer and rectangular textured solar cells.  - american journal of applied sciences.  6(4):667-671. 

f.y. lim, s. abdullah, i. ahmad , b.y. majlis & k.sopian.  (2009).  simulation of the macroscopic heat transfer and flow behaviours in microchannel heat sinks using porous media approximation.  - proceedings of the 4th iasme/wseas international conference on energy & environment (ee09), cambridge, united kingdom. 

r daghigh, nm adam, k sopian and bb sahari.  (2009).  thermal comfort of an air-conditioned office through different windows-door opening arrangements.  - building services engineering research and technology.  30(1):49-63. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah, mohd sobri takriff.  (2009).  correlations of percentage increases in local nusselt number with radial distance for steady and pulsating jet.  - international review of mechanical engineering.  3(5): 613-618. 

mohammad reza faraji zonooz, z.m. nopiah, ahmad mohd.yusof, kamaruzzaman sopian.  (2009).  a review of markal energy modeling.  - european journal of scientific research.  26(3):352-361. 

roonak daghigh, kamaruzzaman sopian, jalil moshtagh.  (2009).  thermal comfort in naturally ventilated office under varied opening arrangements: objective and subjective approach.  - european journal of scientific research.  26(2):260-276. 

baharuddin ali, kamaruzzaman sopian, mohamad al ghoul, mohd yusof othman, azami zaharim, ahmad mahir razali.  (2009).  economics of domestic solar hot water heating systems in malaysia.  - european journal of scientific research.  26(1):20-28. 

ari pani desvina, ahmad mahir razali, khairiah jusoh, azami zaharim, kamaruzzaman sopian.  (2009).  model statistik untuk data karbon monoksida (co).  - prosiding simposium kebangsaan sains matematik ke-17. 

baharuddin ali, kamaruzzaman sopian, mohdazhar abd. rahman, mohd yusof othman, azami zaharim, ahmad mahir razali.  (2009).  hybrid photovoltaic diesel system in a cable car resort facility.  - european journal of scientific research.  26(1):13-19. 

azami zaharim, ahmad mahir razali, rozaimah zainal abidin, kamaruzzaman sopian.  (2009).  fitting of statistical distributions to wind speed data in malaysia.  - european journal of scientific research.  26(1):6-12. 

nowshad amin, m. i. kabir and kamaruzzaman sopian.  (2009).  effect of structural variations in amorphous silicon based singleand multi junction solar cells from numerical analysis.  - 18th international photovoltaic science and engineering conference and exibition. 

nowshad amin, mahmud a. matin and kamaruzzaman sopian.  (2009).  prospects of novel front and back contacts for high efficiency cadmium telluride thin film solar cells from numerical analysis.  - 18th international photovoltaic science and engineering conference and exhibition. 

nowshad amin, mohd fadhirul nazeri and kamaruzzaman sopian.  (2009).  cost effective inverter development for one-panel-house application in developing countries.  - 18th interntional photovoltaic science and engineering conference and exihition. 

azami zaharim, siti meriam zahid, mohammad said zainol, ibrahim mohamed, kamaruzaman sopian.  (2009).  modeling the kuala lumpur composite index (klci).  - european journal of scientific research.  25(3):499-512. 

azami zaharim, ahmad mahir razali, tee pei gim, kamaruzzaman sopian.  (2009).  time series analysis of solar radiation data in the tropics.  - european journal of scientific research.  25(4):672-678. 

juhari ab. razak, kamaruzzaman sopian, yusoff ali, mohammad ahmed alghoul, azami zaharim, ibrahim ahmad.  (2009).  optimization of pv-wind-hydro-diesel hybrid system by minimizing excess capacity.  - european journal of scientific research.  25(4):663-671. 

k. sopian, m.a. alghoul, ebrahim m. alfegi, m.y. sulaiman, e.a. musa.  (2009).  evaluation of thermal efficiency of double-pass solar collector with porous-nonporous media.  - renewable energy.  34(3):640-645. 

adnan ibrahim, m.y. othman, m.h. ruslan, m.a. alghoul, m. yahya, a. zaharim and k. sopian.  (2009).  performance of photovoltaic thermal collector (pvt) with different absorbers design.  - wseas transactions on environment and development.  321-330. 

siti khadijah najid, azami zaharim, ahmad mahir razali, mohd said zainol, kamarulzaman ibrahim & kamaruzzaman sopian.  (2009).  analyzing the east coast malaysia wind speed data.  - international journal of energy and environment.  3(2):53-60. 

mohd yusof hj othman, hafidz ruslan, kamaruzzaman sopain & goh li jin.  (2009).  kajian prestasi pengumpul suria fotovoltan-terma (pv/t) dengan plat penyerap lengkuk-v.  - sains malaysiana.  38(4):537-541. 

a.r. ismail, s.c. abdullah, k.sopian, s.abdullah, m. m. tahir, i.m.s. usman and d.a.wahab.  (2008).  re in modelling of cngdi piston head.  - proceeding of the 7th international conference on system science and simulation in engineering (icossse?08), world scientific and engineering academy and society (wseas). 

mohamad yusof sulaiman dan kamarulzzaman sopian.  (2008).  progress of solar energy research and development 2008.  - 357. 

sopian, k, a, zaharim and m.algoul.  (2008).  analysis of single and double passes with and without porous media for v groove absorber.  - proceedings of the 9th wseas int conf on mathematical and computational methods in science and engineering, trinidad and tabago, nov 5-7 2007. 

a.r. ismail, s.c. abdullah, a.h. a. a. manap, k.sopian, m. m. tahir, i.m.s. usman and d.a. wahab.  (2008).  dfm and dfa approach on designing pressure vessel.  - proceeding of the 7th international conference on system science and simulation in engineering (icossse?08), world scientific and engineering academy and society (wseas). 

a. r. ismail,m. r. a. rani,z. k. m. makhbul, i.m.s.usman,c. meier,m.n.ab.rahman, k. sopian,m. m. tahir.  (2008).  assessment of environmental factors at automotive industry:a case study at car body assembly line.  - proceeding of 2nd wseas/iasme international conference on energy planning, energy saving, environmental education (epese?08). 

a. r. ismail,s.mat, n.jusoh, m.n.ab.rahman,k. sopian, i.m.s. othman, m. m. tahir, b.m.deros.  (2008).  indoor thermal comfort: a study at malaysian automotive industry.  - 2nd international conference on waste management, water pollution, air pollution, indoor climate (wwai 08). corfu, greece.. 

mohd nizam ab rahman, ruhizan mohd yasin, kamaruzzaman sopian, juhari ab razak, ahmad rasdan ismail and azami zaharim.  (2008).  initial study of renewable energy system in rural malaysia.  - proceeding of 2nd wseas/iasme on renewable energy sources (res?08). 

a.r. ismail, m. radzi a.m., m.j.m.nor, m.z.nuawi, r. zulkifli, k.sopian.  (2008).  noise modeling scenario from industrial projects in malaysia.  - proceedings of international conference on energy, environment, ecosystems and sustainable development (eeesd`08). 

i.e. saeed, k. sopian and z. zainol abidin.  (2008).  drying characteristics of roselle: study of the two-term exponential model and drying parameters.  - agricultural engineering international:the cigr ejournal.  FP 08 016. Vol. X. 

m.a. mussa, s. abdullah, c.s. nor azwadi, n. muhamad and k. sopian.  (2008).  numerical simulation of lid-driven cavity flow using the lattice boltzmann method.  - proceedings of the 13th wseas international conference on applied mathematics (math`08), tenerife, spain. 

m.h. yazdi, s. abdullah, i. hashim and k. sopian.  (2008).  reducing exergy losses of liquid fluid using embedded open parallel microchannels within the surface.  - proceedings of the 13th wseas international conference on applied mathematics (math`08), tenerife, spain. 

n. amin and k. sopian.  (2008).  an analytical performance study of gaas based single and multi junction solar cells by amps.  - proceedings of the 3rd international solar cities congress 2008; adelaide, australia, feb 17-21, 2008; isbn 978-0-9803168-7-2, pages 165-174. 

nowshad amin, md. anwarul azim and kamaruzzaman sopian.  (2008).  development of cost effective charge controller with data acquisition options for pv powered sensor nodes.  - 33rd ieee photovoltaic specialists conference (pvsc), may 11-16, 2008, san diego, california, usa. 

kamaruzzaman sopian, nowshad amin,nilofar asim,saleem h. zaidi.  (2008).  plasma implantation for emitter and localized back surface field (bsf) formation in silicon solar cells.  - european journal of scientific research.  24(3):365-372. 

kamaruzzaman sopian, nilofar asim, nowshad amin, saleem h. zaidi.  (2008).  enhancement of optical absorption in thin-film silicon solar cells in silicon-on-insulator (soi) configuration.  - european journal of scientific research.  24(3):358-364. 

fairborz jahanshah, rajiv prinja, john anderson, ron manginell, nowshad amin, k. sopian and saleem h. zaidi.  (2008).  an investigation of three-dimensional texturing in silicon solar cells for enhanced optical absorption.  - 33rd ieee photovoltaic specialists conference (pvsc), may 11-16, 2008, san diego, california, usa. 

m. ebrahim ali alfegi, kamaruzzaman sopian, mohd yusof hj othman and baharudin bin yatim.  (2008).  experimental investigation of single pass, double duct photovoltaic thermal (pv/t) air collector with cpc and fins.  - american journal of applied sciences.  5(7):866-871. 

a.r.ismail, m.r.a.mansor, m.j.m.nor, m.z.nuawi, r. zulkifli, m. n. ab. rahman and k. sopian.  (2008).  comparative studies and impact analysis of environmental noise modeling from malaysian industrial projects.  - wseas transactions on environment and development.  4(8):666-675. 

zahari ibrahim, kamaruzzaman sopian, azami zaharim, m.a. ghoul and baharudin ali.  (2008).  estimation of flow rates in naturally ventilated buildings using simplified method.  - wseas transactions on environment and development.  4(1):56-65. 

mokhtar shaharuddin, azami zaharim, mohd. jailani mohd. nor, othman a. karim, kamaruzzaman sopian.  (2008).  application of wavelet transform on airborne suspended particulate matter and meteorological temporal variations.  - wseas transactions on environment and development.  4(2):89-98. 

rajiv prinja, john anderson, ron manginell, j.w. tringe, k. sopian, nowshad amin and saleem h. zaidi.  (2008).  absorption enhancement in thin-film silicon solar cells in soi configuration using physical and geometrical optics.  - 33rd ieee photovoltaic specialists conference (pvsc), may 11-16, 2008, san diego, california, usa.. 

silvia rita, huda abdullah, n.p. ariyanto, k. sopian.  (2008).  study of structural and optical properties of nanostructure al doped zno as anti-reflecting coating.  - 2nd international conference on functional materials & devices 2008. 

nowshad amin, kamaruzzaman sopian, m. yahya and a. zaharim.  (2008).  significance of absorber thickness reduction in cdte thin film solar cells for promising terrestrial usage - from the perspective of numerical analysis.  - proceedings of the 8th wseas international conference on power systems (ps 2008) santander, cantabria, spain, september 23-25, 2008. 

n.p. ariyanto, h. abdullah, silvia rita, n.s.a. ghani, k. sopian.  (2008).  surface morphology characterization of sn-doped zno films for anti reflective coating.  - 2nd international conference on functional materials & devices 2008. 

chan hoy yen, kamaruzzaman sopian, baharuddin ali, mazlin mokhtar.  (2008).  energy indicators for sustainable development in malaysia.  - european journal of social sciences.  6(2):213-231. 

mahmud abdul matin bhuiyan, nowshad amin and kamaruzzaman sopian.  (2008).  effects of absorber and window layer thickness on cds/cdte thin film solar cells from numerical analysis by scaps 1d.  - proceedings of 2008 student conference on research and development (scored 2008) november 26-27. 

m.a. alghoul, m.y. sulaiman, k. sopian and b. z azmi.  (2008).  adsorption properties of malaysian activated carbon for cooling system.  - world renewable energy congress (wrecx) 2008. 

sohif mat, kamaruzzaman sopian, mazlin mokhtar, baharuddin ali, halimaton saadiah hashim, abdul khalim abdul rashid and muhammad fauzi mohd zain.  (2008).  managing sustainability in universiti kebangsaan malaysia.  - proceeding of the 1st wseas international conference on urban rehabilitation and sustainability. 

kamaruzzaman sopian.  (2008).  tenaga keterbaharuan: laluan masa depan bebas karbon.  - 88. 

kamaruzzaman sopian, abdul latif ibrahim, nilofar asim, nowshad amin, saleem h. zaidi.  (2008).  can a high-tech silicon photovoltaic (pv) be a cottage industry?.  - european journal of scientific research.  24(2):263-269. 

zuhairuse md darus, siti nurhidayah abdul manan, nor atikah hashim, roslan saat, azami zaharim & zaidi omar.  (2008).  native regionalism in development of sustainable resort in malaysia.  - wseas transactions on environment and development.  4(12):1109-1119. 

salwan s. dihrab, k. sopian and a. zaharim.  (2008).  review on the unitized regenerative fuel cells materials.  - wseas transactions on environment and development.  4(12):1151-1160. 

baharuddin ali, kamaruzzaman sopian, chan hoy yen, sohif mat, azami zaharim.  (2008).  key success factors in implementing renewable energy programme in malaysia.  - wseas transactions on environment and development.  4(12):1141-1150. 

che-ani a.i., ramly a., m. jamil, m.fm. zain, k. sopian.  (2008).  role and methods of building defects inspection.  - building maintenance course: performance monitoring and building inspection technology. 

m.f.m.zain, suhad m. abd, k. sopian, m. jamil, che-ani a.i..  (2008).  mathematical regression model for the prediction of concrete strength.  - the 10th wseas internatioal conference on mathematical methods, computational techniques and intelligent systems (mamectis `08). 26-28 october 2008. corfu island, greece.. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah and mohd sobri takriff.  (2008).  effect of pulsating circular hot air jet frequencies on local and average nusselt number.  - american journal of engineering and applied sciences.  1(1):58-62. 

zuhairuse md darus, nor atikah hashim, siti nurhidayah abdul manan, mohd azhar abdul rahman, khairul nizam abdul maulud & othman abdul karim..  (2008).  potential of wind energy in sustainable development of resort island in malaysia: a case study of pulau perhentian (perhentian island).  - wseas international conferences corfu, greece, october 26-28, 2008. proceedings of the 10th wseas international conference on mathematical methods, computational techniques and intelligent systems. 

k.n. abdul maulud, o.a karim, k. sopian, z. md. darus, e.e. mohd. ramly..  (2008).  identification a potential wave energy location in malaysia using gis.  - wseas international conferences corfu, greece, october 26-proceedings of the 10th wseas international conference on mathematical methods, computational techniques and intelligent systems. 

khairul nizam abdul maulud, othman a. karim, kamaruzzaman sopian & erma elliza mohd ramly.  (2008).  gis application in identify a potential marine energy in malaysia.  - 7th international symposium & exhibition on geoinformation (isg2008). 

m.d.t. afandie, k. sopian, j. sahari, m. yahya, m.a. alghoul,m.y. othman, s. ahmad and a. zaharim.  (2008).  evaluation of natural rubber composites solar collector absorber tubes.  - 2nd wseas/iasme international conference on renewable energy sources (res'08) corfu, greece, october 26-28, 2008. 

m.h. yazdi, s. abdullah, i. hashim, a. zaharim ,k. sopian.  (2008).  friction and heat transfer in slip flow boundary layer at constant heat flux boundary conditions.  - mathematical methods, computational techniques, non-linear systems, intelligent systems, corfu, greece. 

jasim m.a. al-lateef, k. sopian, m.a. alghoul, and baharuddin ali.  (2008).  new working fluids for solar absorption refrigeration system.  - isesco science and technology vision.  4(5):16-20. 

kamaruzzaman sopian, juhari ab. razak, zulkifli mohd nopiah, yusoff ali.  (2008).  optimal operational strategies for pico hydro wind photovoltaic diesel hybrid energy system using genetic algorithms.  - isesco science and technology vision.  4(5):55-59. 

i.e. saeed, k. sopian and z. zainol abidin.  (2008).  drying characteristics of roselle (1): mathematical modeling and drying experiments.  - agricultural engineering international: the cigr ejournal..  08 015 (X):1-25. 

r. daghigh, n. m. adam, b. b. sahari, k. sopian and m. a. alghoul.  (2008).  influences of air exchange effectiveness and its rate on thermal comfort: naturally ventilated office.  - journal of building physics.  32(2):175-194. 

ayu wazira azhari, kamaruzzaman sopian, azami zaharim, mohamad al ghoul.  (2008).  a new approach for predicting solar radiation in tropical environment using satellite images - case study of malaysia.  - wseas transactions on environment and development.  4(4):373-378. 

j. m. abdulateef, k. sopian and m. a. alghoul.  (2008).  optimum design for solar absorption refrigeration systems and comparison of the performances using ammonia-water, ammonia-lithium nitrate and ammonia-sodium thiocyanate solutions.  - international journal of mechanical and materials engineering.  3(1):17-24. 

kamaruzzaman sopian, azami zaharim, yusoff ali, zulkifli mohd nopiah, juhari ab. razak, nor salim muhammad.  (2008).  optimal operational strategy for hybrid renewable energy system using genetic algorithms.  - wseas transactions on mathematics.  7(4):130-140. 

kamaruzzaman sopian, wan ramli wan daud.  (2008).  development of the hydrogen energy roadmap and current status on r&d for malaysia.  - isesco science and technology vision.  4(5):12-15. 

wendy hardyono kurniawan, shahrir abdullah, kamaruzzaman sopian, zulkifli mohd. nopiah and azhari shamsudeen.  (2008).  cfd investigation of fluid flow and turbulence field characteristics in a four-stroke automotive direct injection engine.  - journal - the institution of engineers, malaysia.  69(1):1-12. 

mohd yusof othman, kamaruzzaman sopian.  (2008).  renewable energy education for asean.  - renewable energy.  16(1-4):1225-1230. 

jahanshah, f; sopian, k; ahmad, i; othman, my; zaharim, a; zaidi, sh.  (2008).  evaluation of 1d and 2d texturing of monocrystalline solar cell.  - proceedings of the 3rd iasme/wseas international conference on energy & environment - energy and environment iii. 

fudholi, a; sopian, k; othman, my; ruslan, mh; alghoul, ma; zaharim, a; zulkifly, r.  (2008).  heat transfer correlation for the v-groove solar collector.  - smo 08: proceedings of the 8th wseas international conference on simulation, modeling and optimization. 

dihrab, ss; sopian, k; zaharim, a.  (2008).  membrane and bipolar plates materials for regenerative fuel cells.  - smo 08: proceedings of the 8th wseas international conference on simulation, modeling and optimization. 

othman, my; yatim, b; sopian, k; zaharim, a; abu bakar, mn.  (2008).  performance analysis of a hybrid photovoltaic-thermal solar air heater.  - res 08: proceedings of the 2nd wseas/iasme international conference on renewable energy sources. 

sopian, k.  (2008).  plenary lecture vii renewable energy application in some selected islamic countries.  - res 08: proceedings of the 2nd wseas/iasme international conference on renewable energy sources. 

abdulateef, jm; sopian, k; alghoul, a; sulaiman, my; zaharim, a; ahmad, i.  (2008).  solar absorption refrigeration system using new working fluid pairs.  - proceedings of the 3rd iasme/wseas international conference on energy & environment - energy and environment iii. 

othman, my; yatim, b; sopian, k; zaharim, a; abu bakar, mn.  (2008).  studies of a photovoltaic-thermal solar drying system for rural applications.  - res 08: proceedings of the 2nd wseas/iasme international conference on renewable energy sources. 

ibrahim, a; sopian, k; othman, my; alghoul, ma; zaharim, a.  (2008).  simulation of different configuration of hybrid photovoltaic thermal solar collector (pvts) designs.  - advances in applied mathematics, systems, communications and computers. 

sopian, k; mat, s; ali, b; sulaiman, my; alghoul, ma; zaharim, a.  (2008).  simulation of a residential solar assisted air conditioning system in malaysia.  - advances in applied mathematics, systems, communications and computers. 

razak, ja; sopian, k; ali, y; alghoul, ma; zaharim, a; ahmad, i.  (2008).  optimization of renewable energy hybrid system by minimizing excess capacity.  - proceedings of the 3rd iasme/wseas international conference on energy & environment - energy and environment iii. 

azhari, aw; sopian, k; zaharim, a; al ghoul, m.  (2008).  solar radiation maps from satellite data for a tropical environment - case study of malaysia.  - proceedings of the 3rd iasme/wseas international conference on energy & environment - energy and environment iii. 

wan ramli w.d, jaafar s., kamaruzzaman s., che hassan c.h., abu bakar m., abdul amir h.k., siti kartom k., meor zainal m.talib, edy herianto majlan, masli irwan, shahbudin mastar@masdar.  (2008).  fuel cell process system engineering group.  - research prospectus, department of chemical and process engineering, universiti kebangsaan malaysia, bangi. 

pn. lorna jeffery minggu, prof. ir. dr. wan ramli wan daud, prof. dr.kamaruzzaman sopian, prof.madya dr.mohammad kassim, prof. dr. abu bakar mohamad, prof. dr.abdul amir hassan kadhum.  (2008).  development of photoelectrochemical water splitting to prodecu hydrogen.  - seminar pemantauan projek penyelidikan (gup) 2007. 

k. sopian, m. yahya, m. y. othman, m. a. alghoul, m.a.m.teridi and a. zaharim.  (2008).  optimum arrangement for photovoltaic arrays in the tropics.  - proceedings of the international conference on power system. 

k. sopian, m. yahya, m. y.othman, m. a. alghoul, m.a.m.teridi and a. zaharim.  (2008).  optimum arrangement of photovoltaic panels for bipv application.  - proceedings of the international conference on power system. 

juhari ab. razak, kamaruzzaman sopian, m. yahya, yusoff ali, mohammad ahmed alghoul and a. zaharim.  (2008).  optimization of renewable energy hybrid system.  - proceedings of the international conference on power system. 

supranto, k. sopian, m. yahya, m. y. othman, m. y. sulaiman and a. zaharim.  (2008).  development of a sizing procedure for solar assisted drying system.  - proceedings of the international conference on computing and computational techniques in sciences, santander, spain. 

m. yahya, k.sopian, m.y. theeran, m. y. othman, m.a. alghoul, m. hafidz and a. zaharim.  (2008).  analysis of double pass solar air heater with porous media.  - 2nd wseas/iasme international conference on renewable energy sources (res`08) corfu, greece. 

mohammad reza faraji zonooz, maznah banu mohamed habiboo raman, ahmad mohd yusof, z.m nopiah, kamaruzzaman sopian.  (2008).  a review of markal energy modelling.  - seminar on progress of solar energy research & development 2008. 

mohammad reza faraji zonooz, maznah banu mohamed habiboo raman, ahmad mohd yusof, z.m nopiah, kamaruzzaman sopian.  (2008).  a review of markal energy modelling.  - seminar on progress of solar energy research & development 2008. 

m.a. alghoul, m.y. sulaiman, k. sopian, and b.z. azmi.  (2008).  adsorption properties of malaysian activated carbon for cooling system.  - world renewable energy congress (wrecx). 

m. yahya, k. sopian, w. r. w. daud, m. y. othman, b. yatim, m. a. alghoul and a. zaharim.  (2008).  experimental and theoretical performances of a solar assisted dehumidification system for drying centella asiatica l.  - proceedings of the 7th wseas international conference on system science and simulation in engineering (icossse `08). 

m. yahya, k. sopian, m. syahri, s. abdullah, m.a. alghoul and a. zaharim.  (2008).  cfd analysis of solar hot water heater with integrated storage system.  - proceedings of the 7th wseas international conference on system science and simulation in engineering (icossse `08). 

m. yahya, k. sopian, m. y. theeran, m. y. othman, m. a. alghoul, m. hafidz and a. zaharim.  (2008).  experimental and theoretical thermal performance of double pass solar air heater with porous media.  - proceedings of the 7th wseas international conference on system science and simulation in engineering. 

m.a. alghoul, m.y. sulaiman, k. sopian, and m.yahya, and azami zaharim.  (2008).  potential of malaysian activated carbon in dual purpose adsorption system.  - proceedings of the international conference on system science and simulation in engineering. 

adnan ibrahim, k. sopian, m.y. othman, m.h. ruslan, m.a. alghoul, m. yahya, and azami zaharim.  (2008).  hybrid photovoltaic thermal collector (pvt) for the production of hot water and electricity.  - proceedings of the international conference on system science and simulation in engineering. 

kamaruzzaman sopian, baharuddin ali, m.yahya, m. a. alghoul, chan hoy yen and a. zaharim.  (2008).  renewable energy in some selected islamic countries.  - proceedings of the international conference on renewable energy sources. 

m. yahya, k. sopian, w. r. w. daud, m. y. othman and b. yatim.  (2008).  performance of a solar assisted dehumidification system for centella asiatica l.  - proceedings of the international conference on power system. 

m.yahya, k. sopian, m. syahri, s. abdullah, m. y. othman, m. a. alghoul, a. zaharim and b. yatim.  (2008).  reducing the heat loss at night time from an unglazed solar hot water with integrated storage system.  - proceedings of the international conference on renewable energy sources. 

m. ibrahim, k. sopian, w.r.w. daud, m. yahya, m. a. alghoul and a. zaharim.  (2008).  performance predication of solar assisted chemical heat pump drying system in tropical region.  - proceedings of the international conference on renewable energy sources. 

kamaruzzaman sopian, tjukup marnoto, wan ramli wan daud, m. a. alghoul, a. zaharim nowshad amin and m.yahya.  (2008).  grid connected solar hydrogen production system.  - proceedings of the international conference on renewable energy sources. 

j. abdulateef, k.sopian, m.yahya, a. zaharim and m. alghoul.  (2008).  optimization of the thermodynamic model of a solar driven aqua - ammonia absorption refrigeration system.  - proceedings of the international conference on renewable energy sources. 

ahmad rasdan ismail, mohd radzi abu mansor, chew bok kim, mazlan md. tahir, ismar m.s. usman, kamaruzzaman sopian,mohd nizam ab rahman, abu bakar sulong, baba md.deros.  (2008).  the relation between the discomfort level of malaysian automotive industries` operators towards their workstation design and work environment.  - proceeding of 9th global congress on manufacturing and management (gcmm2008), 12-14 november 2008, holiday inn, surfers paradise, australia. 

m. i. kabir, nowshad amin, and kamaruzzaman sopian.  (2008).  a comparative study on amorphous silicon based thin film solar cells by amps-1d.  - 2008 regional student conference on research and development, scored 2008, ieee, utm malaysia, november 26-27, page-228.. 

fariborz jahanshah, nowshad amin, nilofar asim, kamaruzzaman sopian and saleem h.zaidi.  (2008).  implantation impact on silicon solar cells with two-dimensional texturing.  - proceedings of 2008 student conference on research and development (scored 2008), 26-27 nov. 2008, johor, malaysia. 

rozaimah zainal abidin, ahmad mahir razali, azami zaharim & kamaruzzaman sopian.  (2008).  penyuaian taburan kebarangkalian bagi data halaju angin.  - prosiding simposium kebangsaan sains matematik ke-16. 

arfah ahmad, ahmad mahir razali, azami zaharim & kamaruzzaman sopian.  (2008).  penyuaian taburan kebarangkalian bagi data arah tiupan angin.  - prosiding simposium kebangsaan sains matematik ke-16, universiti malaysia terengganu. 

ahmad mahir razali, tee pei gim, azami zaharim, kamaruzzaman sopian.  (2008).  time series analysis of solar radiation data.  - proceedings of the 4th iasme/wseas international conferences on energy, environment, ecosystems and sustainable development (eeesd`08), algarve, portugal, june 11-13, 2008. 

ahmad mahir razali, rozaimah zainal abidin, azami zaharim, kamaruzzaman sopian.  (2008).  fitting of statistical distributions to wind speed data.  - proceedings of the 4th iasme/wseas international conferences on energy, environment, ecosystems and sustainable development (eeesd'08), algarve, portugal, june 11-13, 2008. 

baharuddin ali, kamaruzzaman sopian, mohdazhar abd. rahman, mohd yusof othman, azami zaharim, ahmad mahir razali.  (2008).  performance of a hybrid photovoltaic diesel system in a cable car resort facility.  - proceedings of the 4th iasme/wseas international conferences on energy, environment, ecosystems and sustainable development (eeesd'08), algarve, portugal, june 11-13, 2008. 

baharuddin ali, kamaruzzaman sopian, baharudin yatim, mohd yusof othman, azami zaharim, ahmad mahir razali.  (2008).  potential for large scale solar assisted hot water heating systems for public and commercial buildings.  - proceedings of the 4th iasme/wseas international conferences on energy, environment, ecosystems and sustainable development (eeesd'08), algarve, portugal, june 11-13, 2008. 

baharuddin ali, kamaruzzaman sopian, mohdazhar abd. rahman, mohd yusof othman, azami zaharim, ahmad mahir razali.  (2008).  economics of residential solar hot water heating systems in malaysia.  - proceedings of the 4th iasme/wseas international conferences on energy, environment, ecosystems and sustainable development (eeesd'08), algarve, portugal, june 11-13, 2008. 

adnan ibrahim, kamaruzzaman sopian, mohd yusof othman & mohd hafidz ruslan.  (2008).  simulation of building integrated photovoltaic thermal (bipvt) for commercial application.  - proc. of 10th world renewable energy congress ? wrec x. elsevier, united kingdom. 

k. sopian, m.y. sulaiman, m.a. alghoul, and m.y. othman.  (2008).  radiative cooling in the tropics ? a case study in malaysia.  - proc. of 10th world renewable energy congress ? wrec x. elsevier, united kingdom. 

mohd hafidz ruslan, mohd yusof hj othman, kamaruzzaman sopian, zafri azran abdul majid & wirat ai him.  (2008).  development of photovoltaic-thermal (pv/t) water based system.  - proc. of 10th world renewable energy congress ? wrec x. elsevier, u. kingdom isbn: 978 008 056 8973. 

ebrahim m. ali alfegi, kamaruzzaman sopian, mohd yusof hj. othman & baharudin yatim.  (2008).  performance analysis of single pass, double duct photovoltaic/thermal (pv/t) solar air heater..  - proc. of 10th world renewable energy congress ? wrec x. elsevier, u. kingdom isbn: 978 008 056 8973.. 

mohd. yusof othman, baharudin yatim, kamaruzzaman sopian and mohd. nazari abu bakar.  (2008).  advances in hybrid photovoltaic-thermal (pv/t) solar air heaters.  - proc. of 10th world renewable energy congress ? wrec x. elsevier, u. kingdom isbn: 978 008 056 8973. 

mohd yusof othman, mohd hafidz ruslan, kamaruzzaman sopian, & zafri azran abdul majid.  (2008).  heat pump dryer using multifunctional solar thermal collector.  - proc. of 10th world renewable energy congress ? wrec x. elsevier, u. kingdom isbn: 978 008 056 8973. 

ahmad mahir razali, ali a. salih, asaad a. mahdi, azami zaharim, kamarulzaman ibrahim and kamaruzzaman sopian.  (2008).  on simulation study of mixture of two weibull distributions.  - proceedings of the 7th wseas international conference on system science and simulation in engineering (icossse`08). 

mohd nizam ab rahman, hernadewita, baba md deros, ahmad rasdan ismail, kamaruzzaman sopian, azami zaharim.  (2008).  applying cleaner production concepts in improving quality of environment.  - proceeding of 2nd wseas/iasme on renewable energy sources (res/08). 

azami zaharim, siti khadijah najid, ahmad mahir razali and kamaruzzaman sopian.  (2008).  the suitability of statistical distribution in fitting wind speed data.  - wseas transactions on mathematics.  7(12):718-727. 

shahrir abdullah, wendy hardyono kurniawan, kamaruzzaman sopian and zulkifli mohd nopiah.  (2008).  development of the four-cylinder moving mesh model for a 1.6-litre four-stroke direct-injection engine.  - jurnal kejuruteraan.  20:135-149. 

nowshad amin, puvaneswaran chelvanathan and kamaruzzaman sopian.  (2008).  effect of thickness and operating temperature on copper-indium-selenium (cis) solar cells with various buffer layers from numerical analysis.  - proceedings of 2008 student conference on research and development (scored 2008) november 26-27. 

ahmad mahir razali, arfah ahmad, azami zaharim & kamaruzzaman sopian.  (2008).  statistical analysis of wind direction data.  - the 3rd international conference on mathematics and statistics (icoms-3)institut pertanian bogor, indonesia, 5-6 august 2008. 

ahmad mahir razali, arfah ahmad, azami zaharim & kamaruzzaman sopian.  (2008).  fitting the probability distribution to wind direction data in bangi.  - proceedings of the seminar on engineering mathematics, universiti kebangsaan malaysia (isbn 983-2982-21-0). 

sulaiman shaari, kamaruzzaman sopian, ahmad maliki omar.  (2008).  solar irradiation handbook for photovoltaic systems design in malaysia.  - 66. 

ahmad mahir razali, rozaimah zainal abidin, azami zaharim & kamaruzzaman sopian.  (2008).  modelling wind speed data via two parameters weibull.  - proceedings of the seminar on engineering mathematics, ukm, bangi. 

ahmad mahir razali, ali a. salih, azami zaharim & kamaruzzaman sopian.  (2008).  some applications of weibull and mixed-weibull distributions in engineering.  - proceedings of the seminar on engineering mathematics, ukm, bangi. 

ahmad mahir razali, tee pei gim, azami zaharim & kamaruzzaman sopian.  (2008).  time series analysis of global solar radiation.  - proceedings of the seminar on engineering mathematics, ukm, bangi. 

tee pei gim, ahmad mahir razali, azami zaharim & kamaruzzaman sopian.  (2008).  pemodelan data radiasi solar global.  - prosiding simposium kebangsaan sains matematik ke-16, 3-5 jun 2008. 

ebrahim m. ali el gefi, kamaruzzaman sopian, mohd yusof othman, baharudin yatim.  (2007).  transient mathematical model on both side single pass photovoltaic thermal air collector.  - arpn journal of engineering and applied sciences.  Vol 2 (5) pp 22- 27. 

mohd yusof othman, baharudin yatim, kamaruzzaman sopian and mohd nazari abu bakar.  (2007).  performance studies on a finned double-pass photovoltaic/thermal (pv/t) solar collector.  - desalination.  209(1-3):43-49. 

k.sopian, m. syahri, s. abdullah, m.y. othman, and b. yatim.  (2007).  unglazed fiberglass reinforced polyester solar water heater with integrated storage system.  - journal of energy engineering.  133(1):26-31. 

rozli zulkifli and kamaruzzaman sopian.  (2007).  studies on pulse jet impingement heat transfer: flow profile and effect of pulse frequencies on heat transfer.  - international journal of engineering and technology.  4(1):86-94. 

nowshad amin, michael tang and kamaruzzaman sopian.  (2007).  numerical modeling of the copper-indium-selenium (cis) based solar cell performance by amps-1d.  - the 5th student conference on research and development ? scored 2007, 11-12 december 2007, selangor, malaysia.. 

kamaruzzaman sopian, tjukup marnoto, wan ramli wan daud, m. a. alghoul, and nowshad amin.  (2007).  grid connected photovoltaic solar hydrogen production system.  - 2007 world renewable energy conference ?pacific rim region. 

tjukup marnoto, kamaruzzaman sopian, wan ramli wan daud, mohamad algoul and azami zaharim.  (2007).  mathematical model for determining the performance characteristics of multi- crystalline photovoltaic modules.  - proceedings of the 9th wseas int.conf. on mathematical and computational methods in science and engineering (macmese`07) ,trinidad and tobago,. 

bashria a, a. yousef and adam n. m, k sopian, a. zaharim and m. alghoul.  (2007).  analysis of single and double passes v-grooves solar collector with and without porous media.  - international journal of energy and environment.  2(1):109-114. 

sohif mat, kamaruzzaman sophian, baharuddin ali, mazlan tahir, ruhizan mohammad yasin.  (2007).  architectural & engineering design and simulation study of a high performance school and its relationship on the productivity and performance of teachers and student.  - 2nd international conference on development of aceh, universitas malikussaleh, lhoikseumawe, aceh, 18-19 deecember, 2007. 

mazlin bin mokhtar, kamaruzzaman sopian, zuriati zakaria, chamhuri siwar, lee yoke heng, abdul latiff bin mohamed, chan hoy yen & goh choo ta.  (2007).  development and implementation of a programme monitoring system for the malaysian-danish environmental cooperation programme.  -

nowshad amin, michael tang and kamaruzzaman sopian.  (2007).  numerical analysis of thickness and temperature effect on copper-indium-selenium (cis) based solar cells with various buffer layers.  - 17th international photovoltaic science and engineering conference - pvsec-17, fukuoka, japan, dec 3 -7, 2007. 

mohd. yusof othman, baharudin yatim, kamaruzzaman sopian and mohd. nazari abu bakar,.  (2007).  performance studies on a finned double-pass photovoltaic-thermal (pv/t) solar collector.  - desalination.  209, 43-55. 

w. h. kurniawan, s. abdullah, z. m. nopiah and k. sopian.  (2007).  multiobjective optimisation of combustion process in a cngdi engine using genetic algorithm and gaussian processes.  - proceedings of computational & experimental mechanics (cem) 2007, bangi, malaysia. 

ebrahim m. ali alfegi, kamaruzzaman sopian, mohd yusof hj othman and baharudin bin yatim.  (2007).  comparative study on performance of single pass, double duct photovoltaic thermal collector with and without cpc.  - european journal of social sciences.  5 (3) 119-124. 

tjukup marnoto, wan ramli wan daud, kamaruzzaman sopian, rozli zulkifli, mohd nizam ab rahman, m. alghou and nowshad amin.  (2007).  performance of a grid connected solar hydrogen pv system in malaysia.  - proceeding 17th international photovoltaic science and engineering conference, 3-7 december 2007, fukuoka, japan.. 

w. h. kurniawan, s. abdullah and k. sopian.  (2007).  computational study of homogeneous and stratified combustion in a compressed natural gas direct injection engine.  - proceedings of computational & experimental mechanics (cem) 2007, bangi, malaysia. 

f. jahanshah, k. sopian, i. ahmad, m. y. othman, azami zaharim, s. h. zaidi.  (2007).  evaluation of 1d and 2d texturing of monocrystalline solar cell.  - international journal of energy.  3(1):88-90. 

kamaruzzaman sopian, sulaiman shaari, nowshad amin, rozli zulkifli, and mohd nizam abdul rahman.  (2007).  performance of a grid-connected photovoltaic system in malaysia.  - international journal of engineering and technology.  4(1):57-65. 

jasim m. abdulateef, kamaruzzaman sopian, m. a. alghoul, mohd yusof sulaiman,azami zaharim and ibrahim ahmad.  (2007).  solar absorption refrigeration system using new working fluid pairs.  - international journal of energy.  3(1):82-87. 

m. a. alghoul, m. y. sulaiman, b.z. azmi, k sopian, and m. abdul wahab.  (2007).  review of materials for adsorption refrigeration technology.  - anti-corrosion methods and materials.  54(4):225-229. 

wendy h. kurniawan, shahrir abdullah, zulkifli m. nopiah and kamaruzzaman sopian.  (2007).  the application of artificial neural network in predicting and optimizing power and emissions in a compressed natural gas direct injection engine.  - sae technical paper.  2007-01-4264. 

wendy h. kurniawan, shahrir abdullah, zulkifli m. nopiah and kamaruzzaman sopian.  (2007).  the development of artificial neural network for prediction of performance and emissions in a compressed natural gas engine with direct injection system.  - sae technical paper.  01-4101. 

wendy h. kurniawan, shahrir abdullah, zulkilfli m. nopiah and kamaruzzaman sopian.  (2007).  multi-objective optimization of combustion process in a compressed natural gas direct injection engine using coupled code of cfd and genetic algorithm.  - jsae technical paper, japan society of automotive engineers.  1 2007-01-1902. 

nowshad amin, kamaruzzaman sopian, makota konagai.  (2007).  numerical modeling of cds/cdte and cds/cdte/znte solar cells as a function of cdte thickness.  - solar energy materials and solar cells.  91(13):1202-1208. 

sopian, k., supranto, othman, m.y., daud, w.r.w., yatim, b..  (2007).  double-pass solar collectors with porous media suitable for higher-temperature solar-assisted drying systems.  - journal of energy engineering.  133 (1):13-18. 

tjukup marnoto, wan ramli wan daud, kamaruzzaman sopian, mohd nizam ab rahman, rozli zulkifli, m alghouand nowshad amin.  (2007).  economic analysis of a grid connected solar hydrogen pv system.  - proceedings 17th international photovoltaic science and engineering conference, 3-7 december 2007, fukuoka, japan,. 

kamaruzzaman sopian, sulaiman shaari, rozli zulkifli and mohd nizam abdul rahman.  (2007).  performance of a grid-connected photovoltaic system in malaysia.  - proceedings 2nd international engineering convention 2007: globalisation in growing economies ? building capacity, 10 - 14 march 2007, jeddah, saudi arabia.. 

r. zulkifli , k. sopian.  (2007).  studies on pulse jet impingement heat transfer: flow profile and effect of pulse frequencies on heat transfer.  - proceedings 2nd international engineering convention 2007: globalisation in growing economies ? building capacity, 10-14 march 2007, jeddah, saudi arabia.. 

m. y. othman, b. yatim,k. sopian, and m. n. a. bakar.  (2006).  double-pass photovoltaic-thermal solar collector.  - journal of energy engineering.  ASCE(Disember), 2006: 121. 

mohd. yusof hj. othman & kamaruzzaman sopian.  (2006).  sistem pengumpul suria termaju untuk industri pengeringan.  - prosiding seminar ukm-unri ke-4, 1-2 ogos 2006, ukm bangi selangor.. 

myh othman, k sopian, b yatim and wrw daud.  (2006).  development of advanced solar assisted drying systems.  - int journal of renewable energy.  Vol 31(5). 703-709. 

m. y. othman, b. yatim, k. sopian and m. n. bakar.  (2006).  double-pass photovoltaic-thermal solar air collector with compound parabolic concentrator and fins.  - journal of energy engineering asce.  132(3): 116-120. 

rozli zulkifli and kamaruzzaman sopian.  (2006).  pulsating circular air jet impingement heat transfer.  - journal of institution of engineers malaysia.  67(3): 47-53. 

kamaruzzaman sopian and wan ramli wan daud.  (2006).  challenges and future developments in proton exchange membrane fuel cells.  - renewable energy.  31(5):719-727. 

imad eldin saeed, k. sopian & z. b. zainol abidin.  (2006).  drying kinetics of roselle (hibiscus sabdariffa l.): dried in constant temperature and humidity chamber.  - seminar penyelidikan siswazah fakulti kejuruteraan (sps2006), ukm, 29-30 ogos 2006. 

mohd yusof hj othman dan kamaruzzaman sopian.  (2005).  kecemerlangan penyelidikan dalam tenaga suria.  - persidangan sempena 35 tahun universiti kebangsaan malaysia. 

mohd. yusof hj. othman, baharudin yatim, kamaruzzaman sopian, mohd. nazari abu bakar.  (2005).  performance analysis of a double-pass photovoltaic/thermal (pv/t) solar collector with cpc and fins..  - renewable energy.  30(2005)2005-2017. 

yushaizad yusof, rozana romainor, mohd. zamri che wanik dan kamaruzzaman sopian.  (2005).  simulation of control algorithms for maximum power point tracker.  - brunei international conference on engineering and technology 2005 (bicet 2005). 

shahrir abdullah, belal f. yousif & kamaruzzaman sopian.  (2005).  design consideration of low temperature differential double-acting stirling engine for solar application.  - renewable energy.  30:1923-1941. 

k. sopian, m.y. othman, b. yatim, and w.r.w. daud.  (2005).  future directions in malaysian environment friendly renewable energy technologies r&d.  - isesco science and technology vision, (special edition on renewable energy.  Vol 1(1):30-36. 

f. assilzadeh, s.a. kalogirou, y. ali, k. sopian.  (2005).  simulation and optimization of a libr solar absorption cooling system with evacuated tube collectors.  - renewable energy.  30 (2005) 1143-1159. 

kamaruzzaman sopian.  (2004).  opportunities and challenges in renewable energy technology development.  - proceedings of bangi world conference on environmental management, 13-14 september 2004 (2nd: bangi). 

t.m.i. alamsyah, kamaruzzaman sopian, shahrir abdullah.  (2004).  predicting average energy conversion of photovoltaic system in malaysia using a simplified method.  - renewable energy.  29(3):403-411. 

kamaruzzaman s, mohd yusof o, baharudin y, wan ramli w.d, yusoff a, zainol abidin a.r, shahrir a, zahari i, mohd hafidz r, mohd fauzi m.z, zuhairuse m.d, mastor s, mazlan m.t,..., wan mohd faizal w.m,.  (2004).  sustainable and environment friendly solar energy technologies research and development in universiti kebangsaan malaysia.  - national conference on engineering and technology (nacet 2004). 

k. sopian, m.y.h. othman, b. yatim, and w.r.w. daud.  (2002).  sustainable and environment friendly solar drying technologies for agricultural produce.  - world renewable energy congress vii (wrec 2002), cologne germany (inivited paper).. 

k. sopian, r. zulkifli, j. sahari, and m.y. othman.  (2002).  thermal performance of thermoplastic natural rubber solar collector.  - journal of material processing and technology, vol 123 (1).  123(2002):179-184. 

k. sopian, s. abdullah, m. syahri, m. y.othman, and b. yatim.  (2002).  experimental investigation of a fiberglass reinforced polyester solar hot water heater with integrated storage system.  - world renewable energy congress vii (wrec 2002), cologne germany. isbn. 

mohd. yusof hj. othman dan kamaruzzaman sopian.  (2002).  teknologi tenaga suria.  - 226. 

mohd. yusof othman, baharudin yatim, kamaruzzaman sopian and mohd. nazari abu bakar,.  (2002).  the development of hybrid photovoltaic-thermal(pvt) solar air heater systems.  - world renewable energy congress vii (wrec 2002), cologne germany (invited paper). 

zain-ahmed a, sopian, k, zainol abidin z, othman m. y. h.  (2002).  the availability of daylight from tropical skies – a case study of malaysia.  - renewable energy vol. 25(1).. 

kamaruzzaman sopian, mohd. yusof hj. othman & baharudin yatim.  (2001).  harnessing the sun for environment-friendly solar energy technologies.  - proceedings of the national seminar on environmental management issues and challenges in malaysia, ukm bangi, 25-26 july 2000. 

ilmi abdullah, kamaruzzaman sopian, abdul halim shamsuddin and vivi eulis diana.  (2001).  pengurusan enapcemar minyak mentah: kajian menggunakan kaedah terma.  - proceedings of the national seminar on environmental management issues and challenges in malaysia, ukm bangi, 25-26 july 2000. 

baharudin yatim, mohd. yusof othman & kamaruzzaman sopian.  (2001).  isu-isu tenaga dan alam sekitar di malaysia.  - proceedings of the national seminar on environmental management issues and challenges in malaysia, ukm bangi, 25-26 july 2000. 

kamaruzzaman sopian & hung yee han.  (2001).  pengurusan dan perawatan enapcemar petroleum dari aspek radioaktif.  - proceedings of the national seminar on environmental management issues and challenges in malaysia, ukm bangi, 25-26 july 2000. 

supranto, sopian, k., daud, w.r.w., othman, m.y. and yatim,b.  (1999).  design of an experimental solar assisted dryer for palm oil fronds.  - renewable energy.  16 (1999):643-646. 

k. sopian, supranto, w.r. w. daud, b. yatim and m.y. othman.  (1999).  thermal performance of the double-pass solar collector with and without porous media.  - renewable energy.  18 (1999): 557-564. 

abdul rahman abdullah, ang mei choo dan kamaruzzaman sopian.  (1997).  simulasi komputer suhu air untuk sistem pemanas air suria termosifon.  - journal of industrial technology.  6(1): 47-56.