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1,221 articles for “efficiency”
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Research ArticleOpen accessEvery word in the titleEffects of Adhesive on Coupling Efficiency of Planar Light Waveguide PackagingYang Bo, Duan Ji-anProblem statement: Advanced optoelectronic devices are a kind of key and basic components for next generation communication, untouched sensor, medical testing. They have lots of advantages including greater communication performance, larger capacity, and more fixable form. But light coupling and package structure seriously affects performance of optoelectronic devices. So a lot of attaching methods were proposed to package optoelectronic devices. … …Current Research in Nanotechnology, Vol. 1, Issue 2 · 21 Jun 2011 · 7,147 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThermal Efficiency of Double Pass Solar Collector with Longitudinal Fins AbsorbersAhmad Fudholi, Kamaruzzaman Sopian, Mohd Hafidz Ruslan et al.Problem statement: One of the most important components of a solar energy system is the solar collector. The performances of double-pass solar collector with longitudinal fins absorbers are analyzed. Approach: The study involves a theoretical study to investigate the effect of mass flow rate, number and height of fins on efficiency, which involves steady-state energy balance equations on the longitudinal … …American Journal of Applied Sciences, Vol. 8, Issue 3 · 25 Mar 2011 · 8,075 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBanking Efficiency in Lebanon: An Empirical InvestigationMouataz Zreika, Nasser ElkanjProblem statement: The main goal behind this study is to identify whether banks are working at full efficiency or not and spot the changes in efficiency for banks operating in Lebanon after 2007 financial crisis. Approach: This study was conducted to examine the technical efficiency of 40 banks operating in Lebanon over the two sub-periods 2002-2006 and 2006-2009 using Data … …Journal of Social Sciences, Vol. 7, Issue 2 · 12 Feb 2011 · 8,300 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAn Enhanced Russell Measure of Super-Efficiency for Ranking Efficient Units in Data Envelopment AnalysisAli Ashrafi, Azmi Bin Jaafar, Lai Soon Lee, Mohd Rizam Abu BakarProblem statement: Conventional Data Envelopment Analysis (DEA) helps decision makers to discriminate between efficient and inefficient Decision Making Units (DMUs). However, DEA does not provide more information about the efficient DMUs. Super-efficiency DEA model can be used in ranking the performance of efficient DMUs. Because of the possible infeasibility of radial super-efficiency DEA model, the ranking has been limited to … …American Journal of Applied Sciences, Vol. 8, Issue 1 · 31 Jan 2011 · 8,800 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNetwork Data Envelopment Analysis Model for Estimating Efficiency and Productivity in UniversitiesMohammad Mahallati Rayeni, Faranak Hosseinzadeh SaljooghiProblem statement: The aim of this study was to compute disaggregate performance measures of universities. The traditional models for Data Envelopment Analysis (DEA) type performance measurement are based on thinking about production as a "black box". Inputs are transformed in this box into outputs. One of the drawbacks of these models is the neglect of linking activities. Approach: Network DEA … …Journal of Computer Science, Vol. 6, Issue 11 · 23 Oct 2010 · 7,888 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleReduce Computation Steps Can Increase the Efficiency of Computation AlgorithmZulkarnain Md. AliProblem statement: Lucas function is a special form of second-order linear recurrence relation. It is used in LUC cryptosystems. The performance of LUC cryptosystem depends on the size of public key, messages and two relatively primes. The increasing of size of these parameters will increase the computation time need to perform the LUC Cryptosystem computation. The efficiency means the quality … …Journal of Computer Science, Vol. 6, Issue 10 · 24 Aug 2010 · 7,018 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEconomic Signaling and Distributive Efficiency of Judicial DecisionsEdmund H. MantellProblem statement: This study considered the problem of how a judge can render an optimal decision in a lawsuit where two litigants each assert a property right in a case where the relevant information is asymmetrically distributed between the parties and the judicial decision-maker. Approach: The research embodied in this study defines an optimal decision as one reflecting the distributive … …Journal of Social Sciences, Vol. 6, Issue 2 · 30 Jun 2010 · 8,212 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThermal Efficiency of a Combined Turbocharger Set with Gasoline EngineJarut KunanoppadonProblem statement: The technology of turbocharger has been used with internal combustion engines since 1905 to increase intake air pressure prior to putting it into the cylinders to increase thermal efficiency of the engine. Based on previous researches and uses of turbochargers, the pattern of turbocharger installation remains the same, either in series or in parallel. Therefore, this research aims … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,143 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEfficiency Decomposition with Enhancing Russell Measure in Data Envelopment AnalysisTien-Hui Chen, Chiao-Pin Bao, Chi-Ming Huang, I-Chiang WangProblem statement: Most studies about the application of Data Envelopment Analysis (DEA) follow the concept of radial and non-radial efficiency measures. Because of some difficulties with the measure of weights, Russell measure utilizes the mean of all input/output efficiency measurements as the efficiency score of a specific business unit. However, this may render bias. Approach: This study provided a reasonable … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,055 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTechnical Efficiency of Chili ProductionA. S.M. Anwarul Huq, Fatimah Mohamed ArshadProblem statement: Scarcity of resources has led to production economists to think about the reallocation of existing resources to produce a prescribed level of output with the minimum cost without changing the production technology. But there is a lack of information about the efficient use of inputs in chili production. Except for a few descriptive studies, econometric analysis has yet … …American Journal of Applied Sciences, Vol. 7, Issue 2 · 28 Feb 2010 · 8,600 accessesView PDFCite