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1,006 articles for “Economic”
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Research ArticleOpen accessIn the abstractA Novel Method for Optimal Location and Expansion of Subtransmission Substations Considering Existing Medium-Voltage Distribution FeedersM. Farrokhifar, M. Bana Sharifian, R. EsmaeilzadehThis research presents an accurate comprehensive cost function for the problem of optimal location of subtransmission substations. Technical constraints and economical parameters are investigated in the modeling. Genetic algorithm is used to optimize the cost function. Coding of decision variables is done in a way that finding the correct solutions is achieved faster. For the first time in this study, … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,788 accessesView PDFCite
Research ArticleOpen accessIn the abstractTropospheric Ozone Effects on the Productivity of Some Crops in Central Saudi ArabiaAkram Ali, Ahmad Alfarhan, Ernest Robinson et al.This study was conducted to evaluate damaging degree of ambient ozone (O3) levels in certain economically important crops in typical areas of the central KSA (Riyadh). Daily mean ozone concentrations were recorded by portable O3 analyzers in the center of Batha, Naseem, Oleya and Industrial City, from the beginning of October, 2006 to middle of June, 2007. Maseef area was … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 7,247 accessesView PDFCite
Research ArticleOpen accessIn the abstractProspects of Wind Farm Development in AlgeriaY. Himri, A. Boudghene Stambouli, B. DraouiThis study utilized wind speed data over a period of almost 10 years between 1977 and 1988 from three stations, namely Adrar, Timimoun and Tindouf in order to assess the energy output for a 30 MW installed capacity wind farm at each site in Algeria, in terms of gross energy, renewable energy delivered, specific yield and wind farm capacity factor. … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 6,083 accessesView PDFCite
Research ArticleOpen accessIn the abstractSeismic Behavior of Vertical Shear Links made of Easy-Going SteelAmir Saedi Daryan, Hesam Bahrampoor, Masood Ziaei et al.Problem Statement: Since the time that steel was first used as a construction material, engineers have attempted to increase strength, reduce weight and produce more economical structures by using elegant member sections. However, the increase in steel strength and the decrease in cross section area are not always useful and in some cases it is necessary to reduce the strength … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 7,211 accessesView PDFCite
Research ArticleOpen accessIn the abstractBehavior of Stabilized Peat Soils in Unconfined Compression TestsWong Leong Sing, Roslan Hashim, Faisal Haji AliProblem statement: Deep stabilized peat columns were known to be economical at forming foundations to support highway embankments constructed on deep peat land. However, failure in the formation of the columns with adequate strength was often attributed to unsuitable type and insufficient dosage of binder added to the soil. Organic matter in peat was known to impede the cementing process … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 7,452 accessesView PDFCite
Research ArticleOpen accessIn the abstractDeterminants of Success within an Integrated Business Curriculum Context: An Econometric AssessmentIsmail H. Genc, Selahattin BekmezThis paper studies an ongoing curriculum innovation at the College of Business and Economics at the University of Idaho, with junior level economics and business classes under one common team taught course, the Integrated Business Curriculum (IBC), instead of independent classes. In our study, there were six modules (classes) within IBC. The students were required to form teams, along with … …Journal of Social Sciences, Vol. 4, Issue 3 · 30 Sep 2008 · 7,671 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Comparative Study of Iranian Consumers' Versus Extension Experts' Attitudes towards Agricultural Organic Products (AOP)Morteza Akbari, Ali AsadiThe main purpose of this study was to asses the attitudes of consumers and extension experts towards Agricultural Organic Products (AOP) in Iran. The statistical population included all of the consumers and extension experts (1000). A sample of 416 consumers and 289 extension experts were selected by the use of proportional random sampling methods. Questionnaires were used to collect data. … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 3 · 30 Sep 2008 · 7,850 accessesView PDFCite
Research ArticleOpen accessIn the abstractRandom Walk Models Classifications: An Empirical Study for Malaysian Stock IndicesChin Wen CheongThis article studied the Random Walk models introduced by Campbell et al.[2] for Malaysian stock market. The analysis is implemented under the possible drastic economics structural change using an iterative structural change test. After the break-date identification, the random walk hypothesis is tested by multiple variance ratios test in two separate periods. We further examined the serial correlations of return’s … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 6,850 accessesView PDFCite
Research ArticleOpen accessIn the abstractHow Prepared are Trainee Teachers of University Putra Malaysia (UPM) to Integrate Computer Technology in Classroom Teaching?Shamsiah Mohamed, Ab. Rahim BakarThis research is a presentation of a study on trainee teachers' preparedness to integrate computer technology in teaching. One-hundred and thirty-nine trainee teachers participated in the study. They comprised 12.2% male students and 87.8% female. They majored in agricultural science, home-science, language, economics or accounting and science and mathematics. Their academic achievements were between 2.00 and 3.74 (Mean = 2.91, … …Journal of Social Sciences, Vol. 4, Issue 1 · 31 Mar 2008 · 7,799 accessesView PDFCite
Research ArticleOpen accessIn the abstractUse of Capital Budgeting Methods for Investment Project Evaluation in the Field of Civil EngineeringIgor Pšunder, Nadja FerlanThe present article deals with use of capital budgeting methods in investment and project evaluation, with special emphasise on their use in the field of civil engineering. The research, presented in this article, was performed among project managers of Slovene companies. Their personal opinions about the use of capital budgeting methods and knowledge of their faults were studied during the … …American Journal of Applied Sciences, Vol. 5, Issue 1 · 31 Jan 2008 · 7,014 accessesView PDFCite