Penerbitan Terkini

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. 

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. 

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. 

mohd asri bin mat teridi;mohd hafidz bin haji ruslan;mohd adib bin ibrahim;lim chin haw.  (2019).  nanoscale engineering of semiconductor ferrite based composite for light-driven water splitting.  - 1-6. 

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. 

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.  -

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). 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

arina mohd noh, sohif mat and mohd hafidz ruslan.  (2018).  cfd simulation of temperature and air flow distribution inside industrial scale solar dryer.  - journal of advanced research in fluid mechanics and thermal sciences. 

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. 

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. 

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). 

hoy-yen chan, a a vinson, s s s baljit & m h ruslan.  (2018).  comparison of thermal performances between low porosity perforate plate and flat plate solar air collector.  - international conference on sustainable development and green technology (sdgt 2017). 

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. 

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. 

arina mohd noha, sohif mat, mohd hafiz ruslan.  (2018).  development and performance analysis of new solar dryer with continuous and intermittent ventilation.  - jurnal kejuruteraan. 

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). 

idris zulkifle, mohd hafidz hj ruslan, mohd yusof hj othman & zahari ibarahim.  (2018).  analytical analysis of solar thermal collector with glass and fresnel lens glazing.  - the 2017 ukm fst postgraduate colloquium, aip conference proceeding. 

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). 

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). 

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. 

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). 

chan hoy yen;mohd hafidz bin haji ruslan;ahmad fudholi.  (2018).  development of an innovative low cost construction material from recycled autoclaved aerated concrete (aac) waste powder for low energy architectures.  -

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. 

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. 

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.  -

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. 

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. 

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. 

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. 

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. 

ali, m. k. m., sulaiman, j., yasir, s. m., ruslan, m. h., fudholi, a., muthuvalu, m. s., and ramu, v..  (2017).  cubic spline as a powerful tools for processing experimental drying rate data of seaweed using solar drier.  - malaysian journal of mathematical sciences.  159-172. 

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. 

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. 

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). 

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. 

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. 

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

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

majid khan majahar ali, ahmad fudholi, jumat sulaiman, mohd hafidz ruslan, japson vun heung wong & suhaimi md. yasir.  (2015).  kaedah lelaran dalam permaslaahan saintifik.  - Bab 8 : 70-82. 

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.  -

dayang fredalina basri, nur faizah abu bakar, ahmad fudholi, mohd hafidz ruslan and im saroeun.  (2015).  comparison of selected metals content in cambodian striped snakehead fish (channa striata) using solar drying system and open sun drying.  - journal of environmental and public health.  1-6. 

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.  -

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. 

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. 

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.  -

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.  -

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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.  -

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

majid khan majahar ali, ahmad fudholi, jumat sulaiman, mohd hafidz ruslan, suhaimi md yasir.  (2014).  sauna technique, drying kinetic modeling and effectiveness on solar drying compared with direct drying in drying process of kappaphycus striatum in selakan island malaysia.  - energy and power engineering.  303-315. 

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). 

mohd syahriman mohd azmi, mohd yusof hj. othman, mohd hafidz hj. ruslan and zafri azran abdul majid..  (2014).  analisis prestasi fotovoltan terapung dan fotovoltan konvensional.  - educatum journal of science, mathematics and technology (ejsmt).  15-21. 

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. 

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. 

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. 

mohd syahriman mohd azmi, mohd yusof hj. othman, mohd hafidz hj. ruslan dan zafri azran abdul majid.  (2014).  analisis prestasi fotovoltan terapung dan fotovoltan konvensional.  - journal of science, mathematics and technology.  15-21. 

m.k.m ali, j.v.h wong, m.h. ruslan, j. sulaiman & s.md. yasir.  (2014).  effectiveness the drying time and kinetic of seaweed kappaphycus alvarezii var. tambalang in green v-roof hybrid solar drier.  - international journal of modern mathematical sciences.  125-136. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

mkm ali, mh ruslan, j sulaiman and sm yasir.  (2014).  optimization on process condition of refined carrageenan (rc) produced from seaweed kappaphycus striatum using respond surface methodology (rsm) in malaysia.  - the 3rd international symposium on processing of foods, vegetables and fruits(ispfvf 2014). 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

mohd syahriman mohd azmi, mohd yusof hj. othman, mohd hafidz hj. ruslan, and zafri azran abdul majid.  (2013).  thermal performance of solar collector with multi direction properties using cross absorber.  - aip conference proceeding -2012 national physics conference. 

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. 

rada zarasvand asadi, fatihah suja, mohd hafidz ruslan, nuruláin abd jalil.  (2013).  the application of a solar still in domestic and industrial wastewater treatment..  - solar energy.  93:63-71. 

zamry ibrahim, zahari ibarahim, baharudin yatim, and mohd hafidz ruslan.  (2013).  thermal efficiency of single-pass solar air collector.  - 2013 ukm faculty of science and technology post-graduate colloquium; selangor; malaysia - aip conference proceedings.  90-94. 

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. 

mohd syahriman mohd azmi, mohd yusof hj othman, mohd hafidz haj ruslan & zafri azran abdul majid.  (2013).  thermal performance of solar collector with multi direction properties using cross absorber.  - 2012 national physics conference. 

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. 

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. 

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. 

zahari ibarahim, mohd hafidz ruslan, and zamry ibrahim.  (2013).  mathematical analysis method for predicting temperature rise in bipv.  - aip conference proceedings : 2012 national physics conference (perfik 2012). 

zamry ibrahim, zahari ibarahim, baharudin yatim, and mohd hafidz ruslan.  (2013).  experimental studies on the thermal efficiency of the single-pass solar air collector with fins.  - aip conference proceedings : 2012 national physics conference (perfik 2012). 

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. 

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. 

dayang fredalina basri, ahmad fudholi, mohd hafidz ruslan, mohamad ahmed alghoul.  (2012).  drying kinetics of malaysian canarium odontophyllum (dabai) fruit.  - wseas transactions on biology and biomedicine.  9(3):77-82. 

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). 

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). 

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). 

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). 

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. 

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, 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). 

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. 

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). 

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. 

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. 

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, 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). 

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). 

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. 

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). 

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. 

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. 

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. 

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). 

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. 

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. 

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. 

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. 

dayang fredalina basri, ahmad fudholi, mohd hafidz ruslan, mohamad ahmed alghoul.  (2012).  study of the drying kinetics of baccaurea angulata merr. (belimbing dayak) fruit.  - recent researches in energy, environment and sustainable development : proceedings of the 6th wseas international conference on renewable energy sources (res `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. 

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). 

dayang fredalina basri, ahmad fudholi and mohd hafidz ruslan.  (2012).  drying characteristics of the borneo canarium odonthophyllum (dabai) fruit.  - american journal of agricultural and biological sciences.  7(3):347-356. 

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. 

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). 

dayang fredalina basri, ahmad fudholi, m.h. ruslan, m.a. alghoul.  (2012).  drying kinetics of malaysian canarium odontophyllum (dabai) fruit.  - models and methods in applied sciences, 2nd international conference on environment, economics, energy, devices, systems, communications, computers, mathematics, saint malo & mont saint-michel, france. 

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. 

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). 

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. 

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. 

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, 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). 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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). 

goh li jin, adnan ibrahim, yee kim chean, roonak daghigh, hafidz ruslan, sohif mat, mohd. yusof othman, kamaruzaman ibrahim, azami zaharim, kamaruzaman sopi.  (2010).  evaluation of single-pass photovoltaic-thermal air collector with rectangle tunnel absorber.  - proceedings of the american conference on applied mathematics (american-math `10), harvard university, cambridge, usa, january 27-29, 2010. 

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. 

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). 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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). 

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). 

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). 

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. 

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. 

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. 

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. 

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.  5(3):321-330. 

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. 

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). 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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.h.muasa, a. abdullah, w.a.w. mustapha, m.h.ruslan.  (2002).  effect of solar drying on the functional properties of surimi.  - proceeding of international conference on innovation in food processing technology and engineering.