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128 articles for “environmental studies”
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Research ArticleOpen accessIn the abstractThe Transboundary Movement of Hazardous Waste: A Contribution to Improve the Present Technical-Judicial ModelGiancarlo Carosso, Cesare Luceri, Pierpaolo OresteThe expression &#34the transboundary movement of hazardous waste&#34 refers, from the technical point of view, to a series of phases that begin with the creation of a hazardous waste and includes its identification according to international, regional and national standards, its delivery to specialized companies and its movement from the exporting country to the importing country; these phases end with … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 13 Jul 2012 · 7,156 accessesView PDFCite
Research ArticleOpen accessIn the abstractEcological Monitoring of Danube water Quality in Budapest RegionHosam E.A.F. Bayoumi Hamuda, Istvan PatkoProblem statement: Serious health problems and other economic costs related to water treatment, remediation and locating a new water supply, become an evidence of water pollution caused by human activities. The main problems of the Danube River basin are associated with nutrients, organic pollution and hazardous pollutants. The aim of the study is to assess the surface water of the … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 5 Apr 2012 · 9,033 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Mathematical Model of Power System with Static Var Compensator in Long Transmission LinePrechanon KumkratugProblem statement: It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rights-of-way issues and costs of construction and deregulation policies that introduced in recent years. The Static Var Compensator (SVC) has been proposed for the better control power flow and dynamic performance. The exact long transmission line model consists of the resistance … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 15 Mar 2012 · 7,099 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Mathematical Model of Power System with Thyristor Controlled Series Capacitor in Long Transmission LinePrechanon KumkratugProblem statement: It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rights-of-way issues and costs of construction and deregulation policies that introduced in recent years. The Thyristor Controlled Series Capacitor (TCSC) has been proposed for the better control power flow and dynamic performance. The exact long transmission line model consists of the … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 27 Feb 2012 · 6,837 accessesView PDFCite
Research ArticleOpen accessIn the abstractCreating New Spaces for Learning: Fostering Experiential and Service Learning, Journeys through the African American PastDolapo Adeniji-NeillProblem statement: Experiential education and service learning are interchangeable. They are defined as an approach to education that implicitly trusts the learner’s ability to learn through experience, rather than a movement for change that seeks to challenge mainstream education. While literature, research, communities and schools recognize the importnce of experiential education, controversies exit as to their efficacies in learning processes. … …Journal of Social Sciences, Vol. 8, Issue 2 · 25 Feb 2012 · 9,094 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Mathematical Model and Simulation of Thyristor Controlled Series Capacitor in Medium Transmission LinePrechanon KumkratugProblem statement: It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rights-of-way issues, costs of construction and deregulation policies that introduced in recent years. The Thyristor Controlled Series Capacitor (TCSC) has been proposed for the better control power flow and dynamic performance. The exact medium transmission line model consists of the resistance … …American Journal of Applied Sciences, Vol. 9, Issue 4 · 9 Feb 2012 · 7,722 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of the Static Var Compensator and R/X Ratio of Short Transmission Line on Transient Stability of Single Machine Infinite Bus SystemPrechanon KumkratugProblem statement: It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rights-of-way issues and costs of construction and deregulation policies that introduced in recent years. The Static Var Compensator (SVC) has been proposed for the better control power flow and dynamic performance. The exact short transmission line model consists of the resistance … …American Journal of Applied Sciences, Vol. 9, Issue 4 · 7 Feb 2012 · 6,989 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Thyristor Controlled Series Capacitor on Transient Stability of Single Machine Infinite Bus System with the Exact Short Transmission Line ModelPrechanon KumkratugProblem statement: It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rights-of-way issues, costs of construction and deregulation policies that were introduced in recent years. The Thyristor Controlled Series Capacitor (TCSC) has been proposed for better control power flow and dynamic performance. The exact short transmission line model consists of the resistance … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 2 Feb 2012 · 7,470 accessesView PDFCite
Research ArticleOpen accessIn the abstractCost Efficiencies and Rankings of Flagship UniversitiesG. Thomas SavProblem statement: Each state in the U.S. touts a premier university as the flagship of its publicly funded higher education system. With decreased government budgets and increased interest in public management reforms, these institutions are being pressured to provide evidence of and set examples for ever greater improvements in operating cost efficiencies. The problem, however, is that empirical measures of … …American Journal of Economics and Business Administration, Vol. 3, Issue 4 · 20 Jan 2012 · 7,507 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Abattoir and Saw-Mill Effluents on Water Quality of Upper Ogun River (Abeokuta)A. O. Adeogun, A. V. Chukwuka, O. R. IborProblem statement: The unregulated discharge of contaminants from point sources into inland freshwater aquatic systems and the resultant deterioration of water quality are largely undocumented in developing countries like Nigeria especially with respect to the role of seasonal factors on the recovery capacity of aquatic systems. Approach: The aim of this study was to assess the impact of abattoir and … …American Journal of Environmental Sciences, Vol. 7, Issue 6 · 6 Jan 2012 · 8,639 accessesView PDFCite