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1,221 articles for “D-Efficiency”
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Research ArticleOpen accessEvery word in the titleA STOCHASTIC FRONTIER APPROACH FOR MEASURING TECHNICAL EFFICIENCY OF SMALL-SCALE IMPROVED SALT PRODUCTION IN GUINEABoubacar Siddighi Balde, Hajime Kobayashi, Makoto Nohmi et al.Salt production is a major driving force behind the loss of mangrove in Guinea. As the traditional salt production causes increasing deforestation, the intensive exploitation of mangrove resources has now reached a critical threshold. Therefore, improved techniques using sunlight as the source of energy has been introduced as an alternative to the traditional salt production techniques which consumes a significant … …American Journal of Applied Sciences, Vol. 11, Issue 8 · 14 May 2014 · 7,647 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleKEY FACTORS FOR IMPROVING TECHNICAL EFFICIENCY OF UPLAND RICE PRODUCTIONThanaporn Athipanyakul, Panusak Jitsaeng, Napa Pongkapan, Piansak PakdeeFood security problems are major issues in developing countries, especially under the conditions of restricted farm resources and environmental degradation. The re-allocation of existing farm resources in the upland in order to reach a production of maximum output under given technologies and the estimated value of the technical efficiency have been important information for this purpose. The objective of this … …American Journal of Applied Sciences, Vol. 11, Issue 2 · 24 Dec 2013 · 7,291 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGrowth Performance, Biomass and Phytoextraction Efficiency of Acacia mangium and Melaleuca cajuputi in Remediating Heavy Metal Contaminated soilShibli Nik Mohd, Nik Muhamad Majid, Noor Azhar Mohamed Shazili, Arifin AbduHeavy metals are very toxic and soil contaminated with sewage sludge urgently need remediation in order to avoid related health hazards. Phytoremediation is a low cost and reliable technique to remediate heavy metal contamination. However phytoremediation using timber species was rarely reported and its efficiency was questionable. A field study was conducted to examine the efficiency of two timber species … …American Journal of Environmental Sciences, Vol. 9, Issue 4 · 28 Aug 2013 · 7,412 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMeasuring the Operating Efficiency of Solar Cell Companies in Taiwan with Data Envelopment AnalysisJui-Min HsiaoThis study discusses the Data Envelopment Analysis (DEA) approach to measure the operating efficiency of solar cell companies. With active and constructive advancement of the government, competition in the solar cell industry became even tenser. When drawing up the competitive strategies, one firm should identify the key indicators of its operating efficiency. This study incorporates three inputs (the number of … …American Journal of Applied Sciences, Vol. 9, Issue 12 · 7 Nov 2012 · 6,923 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGaseous Emissions and Combustion Efficiency Analysis of Hydrogen-Diesel Dual Fuel Engine under Fuel-Lean ConditionPrateep Chaisermtawan, Sompop Jarungthammachote, Sathaporn Chuepeng, Thanya KiatiwatExhaust gas emissions from diesel engine combustion using alternative fuel may change in their quantities that can affect exhaust gas after-treatment devices and environmental ambient. This study presents theoretical analysis of combustion generated emissions and efficiency of hydrogen-diesel duel fuel in fuel-lean condition. A chemical equilibrium method by minimizing Gibbs free energy is employed to estimate exhaust gas products from … …American Journal of Applied Sciences, Vol. 9, Issue 11 · 1 Sep 2012 · 7,514 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Water Demand Management by Monitoring the Technology Performance and the Water Use EfficiencyFraj ChemakProblem statement: Given the climate constraints and the limited resources, Tunisia has developed the irrigated sector in order to diversify the agricultural production and to meet the food needs of the population. Today the policy of water supply reaches its limits and the efforts should be turned to the management of the water demand. Within this context, this research aims … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 23 Apr 2012 · 7,162 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Evaluation of Relative Efficiency of Teaching HospitalsFereshteh Farzianpour, Shayan Hosseini, Tahera Amali et al.Problem statement: The main purpose of applying practical and scientific ways to evaluate the hospital’s performance and activities the optimal use of physical facilities ‘technology and the present human power. One the scientific way used for this purpose is using economic analysis and tools one of which is to determining hospitals’ technical efficiency the present study tries to determine the … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 27 Jan 2012 · 7,583 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAntagonistic Effects of Fertilizer on Photochemical Efficiency of Hibiscus cannabinus L. (Kenaf) Planted on Beach Ridges Interspersed with Swales SoilMohd-Hazimy Yusoff, Hazandy Abdul-Hamid, Arifin Abdu et al.Problem statement: Hibiscus cannabinus L. or Kenaf is a highly productive, warmseasonal C3 annual crop and is one of the potential candidates to substitute kenaf fiber as raw product for pulp and paper production. It survives well on less fertile soils including those of Beach Ridges Interspersed with Swales (BRIS) soil. Approach: The objective of this study was to determine … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 3 · 19 Sep 2011 · 8,512 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSome Statistical Solutions and Methods in Evaluation of Efficiency in Sport and Effectiveness in the Phenomenon of Sportsmen' TrainingGheorghe Săvoiu, Ion Iorga, Marian Creţu, Ion MihăilăProblem statement: A general method for evaluation of efficiency in sport and effectiveness in the phenomenon of sportsmen’s training was proposed. Approach: The method of four “E” was a frame method focused on communication and evaluation, where efficiency acquired an essential importance and its variation related to the initial programme, with its time or space details, respectively related to the … …Journal of Social Sciences, Vol. 7, Issue 3 · 18 Jul 2011 · 7,881 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAnalytical and Experimental Studies on the Thermal Efficiency of the Double-Pass Solar Air Collector with Finned AbsorberAhmad Fudholi, Kamaruzzaman Sopian, Mohd Hafidz Ruslan et al.Problem statement: The design of suitable air collectors is one of the most important factors controlling the economics of the solar drying. Air type collectors have two inherent disadvantages: Low thermal capacity of air and low absorber to air heat transfer coefficient. Different modifications are suggested and applied to improve the heat transfer coefficient between the absorber plate and air. … …American Journal of Applied Sciences, Vol. 8, Issue 7 · 24 Jun 2011 · 7,417 accessesView PDFCite