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1,104 results for “Temperature”

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Research ArticleOpen accessEvery word in the titleThe Effect of Temperature on the Performance of Uncooled Semiconductor Laser Diode in Optical NetworkMohammad Syuhaimi Ab-Rahman, Nurain Izzati ShuhaimiProblem statement: The characteristics of a laser diode are highly dependent on the temperature of the laser chip. Thus, the effect of temperature on the network performance of uncooled semiconductor laser diode are studied by simulating its equivalent electrical circuit, developed from the rate equations that governing optical components directly into an electrical simulation framework. Approach: The simulations are carried … …Journal of Computer Science, Vol. 8, Issue 1 · 29 Oct 2011 · 7,685 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Sintering Temperature Effect on the Shrinkage Behavior of Cobalt Chromium AlloyM. Ghazali Kamardan, N. Hidayah A. Zaidi, M. Noh Dalimin et al.Problem Statement: Co-Cr based alloys which is well known for its high Young’s modulus, fatigue strength, wear resistance and corrosion resistance is an important metallic bio-material. However, till date there are only two type of Co-Cr alloy which are the castable and wrought cobalt alloy. Powder Metallurgy route for cobalt is expected to give better result of Co-Cr alloy. The … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,792 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSeasonal Variation of Soil Resistivity and Soil Temperature in Bayelsa StateJohn Tarilanyo Afa, C. M. AnaeleProblem statement: Due to the climatic variation for the year and it's sever harmattan during the month of December to March with the high keraunic level (80-90) in the areas, it was necessary to know the seasonal variation of soil resistivity. The seasonal variation and the nature of soil have considerable influence on electrical characteristics and therefore affect the earthling … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 5 Nov 2010 · 8,724 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePotted Plants on Flat Roof as a Strategy to Reduce Indoor Temperature in Malaysian ClimateAsmat Ismail, Muna Hanim Abdul Samad, Abdul Malek Abdul RahmanProblem statement: The phenomenon of global warming or climate change has led to many environmental issues including higher atmospheric temperatures, intensive precipitation, increase greenhouse gaseous emission and of course increase indoor discomfort condition. Researchers worldwide collectively agreed that one way of reducing the impact of global warming is by implementing green roof technology which integrates vegetation, growing medium and water … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 3 · 30 Sep 2010 · 8,664 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNatural Ventilation of Indoor Air Temperature: A Case Study of the Traditional Malay House in PenangAhmad Sanusi Hassan, Mahyuddin RamliProblem statement: It was the aim of the study to analyze the level of performance of natural air ventilation with a case study of the traditional Malay house in Penang, Malaysia. This study provided information on the architectural design in relation to natural air ventilation. It promoted passive design in contrast to most housing design which has poor natural air … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 3 · 30 Sep 2010 · 11,956 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Different Uniform Temperature with Thickness-Wise Linear Temperature Gradient on Interfacial Stresses of a Bi-Material AssemblyD. Sujan, Z. Oo, M. V.V. Murthy, K. N. SeetharamuProblem statement: The thermal mismatch induced interfacial stresses are one of the major reliability issues in electronic packaging and composite materials. Consequently an understanding of the nature of the interfacial stresses under different temperature conditions is essential in order to eliminate or reduce the risk of structural and functional failure. Approach: In this analysis, a model was proposed for the … …American Journal of Applied Sciences, Vol. 7, Issue 6 · 30 Jun 2010 · 7,068 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTemperature Trends and Distribution in the Arabian PeninsulaMohammad N. ElNesr, Majed M. Abu-Zreig, Abdurrahman A. AlazbaProblem statement: Temperature trend’s investigation is important for proper water resources management and urban planning. This study aims to investigate trends and distribution of temperature in the past thirty years for the Kingdom of Saudi Arabia (KSA), which represents about 86% of the Arabian Peninsula’s area. Approach: The trend in the temperature time series, including the recorded maximum, average and … …American Journal of Environmental Sciences, Vol. 6, Issue 2 · 30 Apr 2010 · 9,371 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptimization of Cutting Parameters Based on Surface Roughness and Assistance of Workpiece Surface Temperature in Turning ProcessAdeel H. Suhail, N. Ismail, S. V. Wong, N. A. Abdul JalilProblem statement: In machining operation, the quality of surface finish is an important requirement for many turned workpieces. Thus, the choice of optimized cutting parameters is very important for controlling the required surface quality. Approach: The focus of present experimental study is to optimize the cutting parameters using two performance measures, workpiece surface temperature and surface roughness. Optimal cutting parameters … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 1 · 31 Mar 2010 · 12,941 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptimization of Temperature Level to Enhance Worker Performance in Automotive IndustryA. R. Ismail, M. Y.M. Yusof, N. K. Makhtar et al.Problem statement: Production of automotive parts is among the largest contributor to economic earnings in Malaysia. The dominant work involve in producing automotive part were manual assembly process. Where it is definitely used a manpower capability. Thus the quality of the product heavily depends on worker’s comfort in the working condition. Temperature is one of the environmental factors that give … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,335 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Temperature Dependence Coefficients of Amorphous Silicon and Crystalline Photovoltaic Modules Using Malaysian Field Test InvestigationSulaiman Shaari, Kamaruzzaman Sopian, Nowshad Amin, Mohd Nizan KassimThe temperature dependence coefficients of amorphous silicon and crystalline photovoltaic (PV) modules using Malaysian field data have been obtained using linear regression technique. This is achieved by studying three test stand-alone PV-battery systems using 62 Wp a-Si, 225 Wp multi-crystalline and 225 Wp mono-crystalline PV modules. These systems were designed to provide electricity for rural domestic loads at 200 W, … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,281 accessesView PDFCite