rohaida mat akir, kalaivani chellappan, noraide md yusop, mardina abdullah, mariyam jamilah homam.  (2021).  prediction of tec at low latitudes station using neural network model.  - 2021 7th international conference on space science and communication (iconspace).  94-98. 

k. chellappan & m. s. a. razak.  (2021).  adapting service robot mechanism in designing movable makerspace for knowledge society building.  - 6th international conference on robotics and automation engineering (icrae).  339-343. 

lazim, m.r.m.l.m., aminuddin, a., chellappan, k., ugusman, a., salamt, n., maskon, o., ahmad, w.a.n.w., mohamad, m.s.f., yusof, a.k.m..  (2019).  development and validation of heart rate - incorporated finger photoplethysmography fitness index algorithm for cardiovascular disease risk assessment.  - 2018 ieee-embs conference on biomedical engineering and sciences (iecbes).  75-79. 

ashrani aizzuddin abd rahni, gunawathi gunasekaran, israna hossain arka, kalaivani chellappan, shahizon azura mukari, ramesh sahathevan.  (2018).  reducing execution time in ct angiography and dynamic ct brain image registration through code optimisation.  - 2nd international conference on biosignal analysis, processing and systems (icbaps).  37-40. 

mohd syakir fathillah, rosmina jaafar, kalaivani chellappan, rabani remli & wan asyraf wan zaidi.  (2017).  complexity analysis on eeg signal via lempel-ziv and approximate entropy: effect of multiresolution analysis.  - international medical device and technology conference 2017 (imeditec 2017).  246-250. 

mohd syakir fathillah, rosmina jaafar, kalaivani chellappan, rabani remli, wan asyraf wan zainal.  (2017).  interictal epileptic discharge eeg detection based on wavelet and multiresolution analysis.  - ieee international conference on system engineering and technology (icset 2017).  . 

s. nur hidayah malek, k. chellappan, r. jaafar.  (2016).  short review of electrocardiogram (ecg) technique versus optical techniques for monitoring vascular health.  - international conference for innovation in biomedical engineering and life sciences.  222-225. 

ashrani aizzuddin abd rahni, israna hossain arka, kalaivani chellappan, shahizon azuramukari, zhe kang law, ramesh sahathevan.  (2016).  comparison of stroke infarction between ct perfusion and diffusion weighted imaging: preliminary results.  - spie medical imaging 2016: biomedical applications in molecular, structural, and functional imaging.  . 

abrar hussain, kalaivani chellappan & siti zamratol mai sarah mukari.  (2016).  speech enhancement using degenerate unmixing estimation technique and adaptive noise cancellation technique as a post signal processing.  - 2016 ieee embs conference on biomedical engineering and sciences.  280-285. 

mohd syakir fathillah, rosmina jaafar, kalaivani chellappan, rabani remli.  (2016).  a study on eeg signals during eye-closed and eye-open using discrete wavelet transform.  - 2016 ieee embs conference on biomedical engineering and sciences (iecbes).  674-678. 

norhayati mohd zainee & kalaivani chellappan.  (2016).  a preliminary dengue fever prediction model based on vital signs and blood profile.  - ieee embs conference on biomedical engineering and sciences (iecbes).  652-656. 

nor shahirah binti shaik amir, kalaivani chellappan, law zhe kang, shahizon mukari & ramesh sahathevan.  (2016).  mr image enhancement for ich classification.  - biomedical engineering and sciences (iecbes) 2016 ieee embs conference.  160-165. 

rohaida mat akir, mardina abdulla, kalaivani chellappan, alina marie hasbi.  (2015).  preliminary vertical tec prediction using neural network: input data selection and preparation.  - 2015 international conference on space science and communication (iconspace).  283-287. 

nordin k.m., chellappan k., sahathevan r..  (2015).  upper limb rehabilitation in post stroke patients: clinical observation.  - iecbes 2014, conference proceedings - 2014 ieee conference on biomedical engineering and sciences: "miri, where engineering in medicine and biology and humanity meet".  700-704. 

mohd zainee n., chellappan k..  (2015).  emergency clinic multi-sensor continuous monitoring prototype using e-health platform.  - iecbes 2014, conference proceedings - 2014 ieee conference on biomedical engineering and sciences: "miri, where engineering in medicine and biology and humanity meet".  32-37. 

hussain a., chellappan k., siti zamratol m..  (2015).  evaluation of multichannel speech signal separation with beamforming techniques.  - iecbes 2014, conference proceedings - 2014 ieee conference on biomedical engineering and sciences: "miri, where engineering in medicine and biology and humanity meet".  766-771. 

sattar r.r.m., chellappan k., aminuddin a., omar n., zakaria z., ali m.a., nordin n.a.m.m..  (2015).  correlation between lipid profile and finger photoplethysmogram morphological properties among young men with cardiovascular risk: a preliminary result.  - iecbes 2014, conference proceedings - 2014 ieee conference on biomedical engineering and sciences: "miri, where engineering in medicine and biology and humanity meet".  602-606. 

arka i.h., chellappan k., mukari s.a., law z.k., sahathevan r., abd. rahni a.a..  (2015).  automatic volumetric registration of ncct and cta brain images using intensity based image registration.  - iecbes 2014, conference proceedings - 2014 ieee conference on biomedical engineering and sciences: "miri, where engineering in medicine and biology and humanity meet".  821-826. 

shariff, a.r.m.; singh, m.s.j.; chellappan, k.; suparta, w.; tangang, f.t.; salimun, e.; muhammad, m.; abdullah, m.; islam, m.t..  (2015).  initial observations of cold surge frequency over southeast asia in relation to enso-induced anomalies.  - 2015 international conference on space science and communication (iconspace), langkawi, malaysia.  453-458. 

israna hossain arka, kalaivani chellappan, shahizon azura mukari, zhe kang law, ramesh sahathevan, ashrani aizzuddin abd. rahni.  (2015).  simultaneous tilt correction and registration of ct angiography and dynamic ct brain images.  - 2015 international conference on biosignal analysis, processing and systems (icbaps).  88-92. 

a. n. m. radzi, a. s. rambely and k. chellapan.  (2014).  a protocol of rope skipping exercise for primary school children: a pilot test.  - aip conference proceedings - 3rd international conference on mathematical sciences.  330-334. 

israna h. arka, kalaivani chellappan, shahizon a. mukari, zhe k. law, ramesh sahathevan, ashrani a. abd. rahni.  (2014).  automatic volumetric registration of ncct and cta brain images using intensity based image registration.  - 2014 ieee conference on biomedical engineering and sciences.  1-6. 

israna hossain arka, kalaivani chellappan.  (2014).  collaborative compressed i-cloud medical image storage with decompress viewer.  - procedia computer science, international conference on robot pride 2013-2014 - medical and rehabilitation robotics and instrumentation, confpride 2013-2014.  114-121. 

e. zahedi, k.b. gan, k. chellappan, m.a.m. ali1 & m.m. mustafa.  (2014).  a synergistic program between engineering and business schools towards medical technology commercialization.  - tensymp ieee region 10 technical symposium 2014.  456-461. 

vahid sohani, edmond zahedi, m. a. mohd. ali, gan kok beng, kalaivani chellappan.  (2014).  a dynamic model between central aortic pressure and radial photoplethysmogram: experimental proof of concept.  - 5th international conference on intelligent and advanced systems (icias) - technological convergence for sustainable future.  1-4. 

a. s. n mokhtar, m. b. i. reaz, k. chellappan, m. a. mohd ali.  (2013).  scaling free cordic algorithm implementation of sine and cosine function.  - proceedings of the world congress on engineering 2013 (wce 2013).  . 

kalaivani chellappan, sabirin abdullah.  (2013).  angkasa research knowledge organization system : a needs analysis study.  - proceeding of the 2013 ieee international conference on space science and communication (iconspace).  . 

kalaivani chellappan, noor k. mohsin, sawal hamid bin md ali, md. shabiul islam.  (2012).  post-stroke brain memory assessment framework.  - 2012 2nd ieee-embs conference on biomedical engineering and sciences, iecbes 2012; langkawi; malaysia.  . 

qawqzeh, y.k., reaz, m.b.i., maskon, o., chellappan, k., ali, m.a.m..  (2011).  photoplethysmogram reflection index and aging.  - international conference on graphic and image processing, icgip 2011; cairo.  . 

y. k. qawqzeh, m. b. i. reaz, o. maskon, kalaivani chellappan, m. t. islam, m. a. m. ali.  (2011).  the investigation of the effect of aging through photoplethysmogram signal analysis of erectile dysfunction subjects.  - 10th wseas international conf. on telecommunications and informatics, tele-info`11,.  .