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67 articles for “M. Y.M. Yusof”
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Research ArticleOpen accessIn the author namesImproving the Polypropylene-Clay Composite Using Carbon Nanotubes as Secondary FillerSalawudeen T. Olalekan, Suleyman A. Muyibi, Qasim H. Shah et al.Problem statement: Current researches have shown that the thermoplastic-clay nanocomposites have failed to live up to the earlier predictions albeit they have found some niche area of applications. This research work therefore aimed at studying the effect of carbon nanotube as secondary filler on the mechanical properties of polypropylene-clay nanocomposite. Approach: Hybrid polypropylene-clay nanocomposite was prepared in the presence of … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 8,671 accessesView PDFCite
Research ArticleOpen accessIn the author namesDifferences in Soil Physical and Chemical Properties of Rehabilitated and Secondary ForestsM. H. Akbar, O. H. Ahmed, A. S. Jamaluddin et al.Problem statement: The soil properties of tropical rain forest in Southeast Asia have been characterized by several researchers; however empirical data on soil characteristics under rehabilitation program are still limited or even lacking. This research is important to determine the soil physical and chemical properties of a rehabilitated degraded forest land 19 years after planting with various indigenous species in … …American Journal of Applied Sciences, Vol. 7, Issue 9 · 30 Sep 2010 · 12,550 accessesView PDFCite
Research ArticleOpen accessIn the author namesSelected Soil Morphological, Mineralogical and Sesquioxide Properties of Rehabilitated and Secondary ForestsB. T. Saga, O. H. Ahmed, A. S. Jamaluddin et al.Problem statement: The tropical rain forests in Southeast Asia have been characterized by several researchers. However empirical data on soil characteristics under degraded forest land in tropical rain forest and rehabilitated program are limited. A study was conducted to evaluate the soil morphology, mineralogical and sesquioxide properties of a rehabilitated degraded forest land (19 years after it was planted with … …American Journal of Environmental Sciences, Vol. 6, Issue 4 · 31 Aug 2010 · 8,022 accessesView PDFCite
Research ArticleOpen accessIn the author namesDevelopment of Empirical Prediction Formula for Penetration of Ogive Nose Hard Missile into Concrete TargetsAhmad Mujahid Ahmad Zaidi, Qadir Bux Alias Imran Latif, Ismail Abdul Rahman, Muhammad Yusof IsmailProblem statement: Concrete is basic construction material used for most of structures. However, the typical vital structures have to be designed as self-protective such as nuclear plants, power plants, weapon industries, weapons storage places and water retaining structures, against any threats like natural disaster tragedy incident or intentionally produced by horrible incidents such as dynamic loading, incident occurs in nuclear … …American Journal of Applied Sciences, Vol. 7, Issue 5 · 31 May 2010 · 8,451 accessesView PDFCite
Research ArticleOpen accessIn the author namesRisk and Health Effect of Boric AcidAng Swi See, Abu Bakar Salleh, Fatimah Abu Bakar et al.Problem statement: Boric acid is a pesticide usually used to kill mites, fungi, plants and insect including fleas, termites, cockroaches and wood decay fungi. Besides, it was also used in many fields such as food preservative, in newborn baby’s nurseries and antiseptic. Many reports indicated that boric acid poisoning occurred due to the misuse of household product and illegal use … …American Journal of Applied Sciences, Vol. 7, Issue 5 · 31 May 2010 · 11,276 accessesView PDFCite
Research ArticleOpen accessIn the author namesOptimization 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 · 7,338 accessesView PDFCite
Research ArticleOpen accessIn the author namesEvaluation of Single-Pass Photovoltaic-Thermal Air Collector with Rectangle Tunnel AbsorberGoh Li Jin, Adnan Ibrahim, Yee Kim Chean et al.Problem statement: Photovoltaic solar cell generate electric by receiving sun light or solar irradiance. But solar cell received heat from solar irradiance as well and this will reduced the efficiency of the solar cell. The heat trap at the solar photovoltaic panel become waste energy. Approach: The solution for this was by adding a cooling system to the photovoltaic panel. … …American Journal of Applied Sciences, Vol. 7, Issue 2 · 28 Feb 2010 · 8,332 accessesView PDFCite
Research ArticleOpen accessIn the author namesComparing Reading Processing Strategies of Second Language ReadersParilah M. Shah, Aminuddin Yusof, Suhana M. Lip et al.Problem statement: The message that a writer tries to convey in a text would be subjected to several interpretations by readers. Apparently, reading is a complex process of getting input. A well-known researcher offers two views of reading: (i) reading is a process of decoding written symbols and (ii) reading is a process of reconstructing meaning. It has also been … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 7,912 accessesView PDFCite
Research ArticleOpen accessIn the author namesHybrid Photovoltaic Thermal (PV/T) Air and Water Based Solar Collectors Suitable for Building Integrated ApplicationsAdnan Ibrahim, Goh Li Jin, Roonak Daghigh et al.Problem statement: Experiments have been conducted to investigate the effect of mass flow rates on the electrical, thermal and combined of photovoltaic thermal efficiencies of the hybrid collectors. Approach: Two photovoltaic thermal solar collectors were designed and fabricated. The first collector, known as spiral flow absorber collector, designed to generate hot water and electricity. The second collector, known as single … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 8,094 accessesView PDFCite
Research ArticleOpen accessIn the author namesMathematical Model of Double Pass Photovoltaic Thermal Air Collector with FinsEbrahim M. Ali Alfegi, Kamaruzzaman Sopian, Mohd Yusof Hj Othman, Baharudin Bin YatimProblem statement: The efficiency of photovoltaic cells is generally temperature dependent (efficiency decrease when the temperature of the photovoltaic cells increase). This problem can be solved by cooling the solar cells during operation and operated at low temperature. Approach: This study presented a numerical model of double pass Photovoltaic Thermal (PV/T) solar air collector with fins attached to the back … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 8,011 accessesView PDFCite