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191 results for “power level”
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Research ArticleOpen accessIn the abstractAn Investigation of Compressed Natural Gas Engine for Nitrogen Oxides ReductionP. M. Diaz, B. Durga PrasadProblem statement: This study describes the use of Reformer Gas (RG) to alter NOx emission in a CNG-fueled HCCI engine. Comparison with diesel, natural gas has a very high octane number (≈120) and high auto-ignition temperature (≈600°C). Composed mostly of methane, natural gas is the only common fuel to manifest relatively pure, single-stage combustion. Other fuels have stronger low-temperature reaction … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 15 May 2012 · 7,298 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Environmental Noises on Fundamental Frequency Contours of Thai DialectsSuphattharachai Chomphan, Chutarat ChompunthProblem statement: Fundamental Frequency (F0) is an important speech feature defining the human speech prosody. It is the resultant of the vibration of human’s vocal chords in speech production. In Thai, there are four main dialects spoken by Thai people residing in four core region including central, north, northeast and south regions. Environmental noises are also playing an important role … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 9 Mar 2012 · 7,031 accessesView PDFCite
Research ArticleOpen accessIn the abstractApproaches to Learning in First Year University PhysicsRachel Wilson, Steve Georgakis, Manjula SharmaProblem statement: In recent decades, discipline specific ways of thinking and knowing have gained increased recognition in understanding learning. However, there has been little empirical research examining student approaches to learning within specific disciplines or, even more specifically, within different streams of study or in response to different curriculum within a discipline. Approach: The aim of this study was to … …Journal of Social Sciences, Vol. 8, Issue 2 · 25 Feb 2012 · 9,211 accessesView PDFCite
Research ArticleOpen accessIn the abstractMisbehaving Node Detection in Mobile Ad Hoc Networks using Multi Hop Acknowledgement SchemeUsha Sakthivel, S. RadhaProblem statement: For any node in a Mobile Ad hoc Network conservation of battery power and bandwidth are the priority. Hence, they try to reduce the overload they would otherwise incur when they forward packets. This selfish behavior of a node affects the throughput of the network. The nodes may also choose a back off value of shorter duration. These … …Journal of Computer Science, Vol. 7, Issue 5 · 7 May 2011 · 6,712 accessesView PDFCite
Research ArticleOpen accessIn the abstractMeasuring Predictors of Student Retention RatesAllen L. Webster, Vince E. ShowersProblem statement: Colleges and universities place more emphasis on student retention rates than ever before. Educational institutions are intensifying efforts to discourage student departure and preserve their established student base. Economic pressures that bear heavily on academic administration make such efforts highly critical for institutional success. Research on this vital issue is especially important due to the vigorous competition among … …American Journal of Economics and Business Administration, Vol. 3, Issue 2 · 7 Apr 2011 · 7,254 accessesView PDFCite
Research ArticleOpen accessIn the abstractSeller Concentration in the Grain Milling IndustryMartin Charumbira, Tafirenyika SundeProblem statement: The main purpose of the study was to explore the levels of concentration in Zimbabwe’s grain-milling industry during period 1985-2005. The study could not be extended to periods after 2005 because the situation in the country had become economically chaotic. Approach: The methodology adopted involved the calculation of the concentration indices such as the Herfindall-Hirschman index, Hannah and … …American Journal of Economics and Business Administration, Vol. 2, Issue 3 · 30 Sep 2010 · 7,502 accessesView PDFCite
Research ArticleOpen accessIn the abstractPotential Contribution of Traffic to Air Pollution in the State of KuwaitN. Al-Mutairi, P. KoushkiProblem statement: The reduction in ambient air pollution is a universal goal-particularly in urban areas, the lack of resources often necessitates identification and prioritization of sources of air pollutants. Efficient planning and effective management of environmental pollutants is thus important for optimum utilization of limited resources. Approach: This study examined seven years of data from three air pollution monitoring stations … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,281 accessesView PDFCite
Research ArticleOpen accessIn the abstractProtection for an Immediate Split Structure of Tree-Based EPON Architecture-Ideal Condition AnalysisMohammad Syuhaimi Ab-Rahman, Siti Asma Che Aziz, Kasmiran JumariProblem statement: Ethernet Passive Optical Network (EPON) was proposed to overcome the bandwidth bottleneck at the Access Networks due to its simplicity, cost effective and wide spread deployment. A failure in access networks can cause serious problems, because access network transmit aggregated high speed traffic from hundreds of subscribers. Protection and restoration mechanisms have been applied in backbone networks, but … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 8,276 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Physiological Effects on Hormones levels and Kidneys Functions Induced by The Anabolic Androgenic Drug (Sustanon) in Male Guinea PigsAmeen Saleh Ahmed Bin BisherProblem statement: In recent years, the intentional abuse of anabolic androgenic drugs by athletes has increased rapidly in many countries to become a serious negative phenomenon. Athletes, specially in power sports, abuse these drugs such as Sustanon in high doses to obtain a rapid and huge increasing in the muscles mass and to improve their performance during the sport competitions. … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,020 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Adjustment of the Manufacturing Labors in the Northeastern, ThailandJunlasun Thuninart, Jaruwan Tammawat, Prasopsuk Rittidet, Budsakorn SaenyabudProblem statement: Northeastern labors used to live in the community cultures moved to work at the garment factory. The capitalism and the national economic and social development plan of Thailand were the causes. The policy of this plan was to make Thailand modern and emphasized development of an economic power. The Northeastern labors lacked of the lands for planting and … …Journal of Social Sciences, Vol. 5, Issue 1 · 31 Mar 2009 · 7,578 accessesView PDFCite