Author

K. Sopian

National University of Malaysia (UKM), Malaysia

6 articles in our journals

Articles where this person is an author, newest first. People are matched by their name as printed (no ORCID iD is recorded for them), not by name alone; search the name as text to find namesakes too.

Research ArticleOpen accessMOVING UP ON SOLAR INDUSTRY VALUE CHAIN: A RESPOND TO WORLD BANK’S PRESCRIPTION FOR MALAYSIAB. Bakhtyar, Ch. Lim, Y. Ibrahim et al.The pressure due to the changes in supplying energy and its price in the international community is in such an extent that it encourages industrialized and developing countries in seeking self-sufficiency in energy production. As one of the leading in countries South East Asia Nations (ASEAN), Malaysia has taken planning and specific investment for the Solar Industry into consideration, besides … …American Journal of Economics and Business Administration, Vol. 6, Issue 2 · 11 Jul 2014 · 7,139 accessesView PDF Cite

Research ArticleOpen accessFabrication of Single Layer SiO2 and Si3N4 as Antireflection Coating on Silicon Solar Cell Using Silvaco SoftwareA. Lennie, H. Abdullah, S. Shaari, K. SopianThe main objectives was to investigate and enhance the short circuit current density, Jsc and also to improve the efficiency of silicon solar cell by fabricating a layer of silicon dioxide (SiO2) and silicon nitride (Si3N4) coatings on silicon solar cell. This fabrication carried out on high temperature during annealing process from 800-1050°C and variable thickness of antireflection coating (ARC) … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 7,674 accessesView PDF Cite

Research ArticleOpen accessThermal Comfort Assessment and Optimization of Environmental Factors by Using Taguchi MethodA. R. Ismail, M. R.A. Rani, Z. K.M. Makhbul et al.Problem statement: The objective of this study was to determine the dominance effects of environmental factors such as Illuminance (lux), relative humidity (%) and WBGT (°C) on the operators’ productivity at Malaysian automotive industry. Approach: One automotive parts assembly factory had been chosen as a subject for the study. The subjects were workers at the assembly section of the factory. … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 7,188 accessesView PDF Cite

Research ArticleOpen accessThermal Comfort Assessment: A Case Study at Malaysian Automotive IndustryA. R. Ismail, N. Jusoh, R. Zulkifli et al.Problem statement: Thermal comfort has a great influence on the productivity and satisfaction of indoor building occupants. The exposure to excessive heat during work may cause discomfort and contributed to low productivity among workers. Malaysia known with its hot and humid weather where in most of the survey study published indicated that workers in Malaysia automotive industries had exposed to … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 7,576 accessesView PDF Cite

Research ArticleOpen accessStudy of the Drying Kinetics of Lemon GrassMustafa Ibrahim, K. Sopian, W. R.W. DaudProblem statement: The thin- layer drying experiments were conducted to examine the effect of drying air temperature and humidity on the drying kinetics. Approach: A model to estimate the drying behavior of Lemon grass was developed). Results: Four different thin-layer drying models were compared with respect to their coefficient of determination (R2), Mean Bias Error (MBE) and Root Mean Square … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,432 accessesView PDF Cite

Research ArticleOpen accessModeling the Effect of P-N Junction Depth on the Output of Planer and Rectangular Textured Solar CellsF. Jahanshah, K. Sopian, S. H. Zaidi et al.Problem statement: High cost of the solar cells is one of the important limitations in extensively using of the photovoltaic panels. Thin monocrystalline silicon solar cell could be reduce the cost but lost the absorption efficiency. Surface texturing help to enhance absorption. Using of advance texturing by diffraction grating was suggested for high absorption. It is necessary to investigate the … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 8,219 accessesView PDF Cite