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155 articles for “Empirical analysis”

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Research ArticleOpen accessAll words, across the recordComparing Approaches for Quality Evaluation of Software Engineering Experiments: An Empirical Study on Software Product Line ExperimentsViviane R. Furtado, Henrique Vignando, Victor França, Edson OliveiraJrThe Software Engineering (SE) research area must provide results of a certain quality for the sake of value. High quality research results may ensure experience and knowledge, which are essential for the technology to be transferred to the industry. One of the means to obtain such quality results is experimentation. Experimentation is a scientific method that aims to provide evidence … …Journal of Computer Science, Vol. 15, Issue 10 · 25 Apr 2019 · 7,747 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordSulfur Dioxide and Volatile Organic Compound Exposure to a Community in Texas City, Texas Evaluated Using Aermod and Empirical Monitoring DataJoyce A. Chen, Andrew R. Zapata, Anders J. Sutherland et al.According to emissions data reported to the United States Environmental Protection Agency (USEPA) and the Texas Commission on Environmental Quality (TCEQ), the BP Products North America Inc. (BP) Texas City Refinery is the worst polluter of all the industries in Texas City and is one of the worst polluting refineries in the country. The facility has reported releasing substantial emissions … …American Journal of Environmental Sciences, Vol. 8, Issue 6 · 1 Jan 2013 · 8,715 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordAn Empirical Study on E-Learning versus Traditional Learning among Electronics Engineering StudentsWai Kit Wong, Poh Kiat NgIn academia, it appears that many lecturers are still contented in using traditional lecturing methods. Cultivating the use of e-learning requires proper understanding of its difference with traditional learning. In this study, the difference between e-learning with traditional learning was descriptively and empirically investigated, with an emphasis on a module in Electronics Engineering known as Fundamentals of Operational Amplifier. This … …American Journal of Applied Sciences, Vol. 13, Issue 6 · 27 Jun 2016 · 8,265 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordFrom the Chicago School to Post-sub Cultural Carriage: A Review and Analysis of Contemporary Trends in Youth Culture ResearchMohd. Aslam BhatThe historicity of youth culture studies is much challenging to date exactly. Sociologists however, trace its genesis from Chicago School and then leap to Birmingham’s Centre for Contemporary Cultural Studies. Theoretically it was, with the works of post subculturists that youth culture research gained ascendency. Global youth culture posture further revamped the field. This paper constructs a critical dialogue between … …Journal of Social Sciences, Vol. 12, Issue 1 · 18 Feb 2016 · 8,519 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordAnalysis of the Application of Turbulence Models in the Calculation of Supersonic Gas JetIlina Ekaterina Evgenevna, Ilina Tamara Evgenevna, Bulat Pavel ViktorovichThis article considers the adequacy of the usage of various two-parameter differential turbulence models for the calculation of supersonic non-calculative (overexpanded and underexpanded) gas jet flowing into the environment that have a pressure equal to atmospheric. A brief historical background on the development of methods for calculating turbulent supersonic jet, which contain developed shock wave structures, is given. For each … …American Journal of Applied Sciences, Vol. 11, Issue 11 · 7 Jan 2015 · 7,199 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordThe Impact of a Letter of Map Amendment on Floodplain Property ValueJames E. LarsenSubstantial empirical evidence indicates properties across the United States that are located within a Special Flood Hazard Area (SFHA) sell at a discount compared to similar properties otherwise located. This result is also true in our sample. Researchers have suggested the price discount equals a combination of the present value of the required flood insurance premiums and the value of … …American Journal of Economics and Business Administration, Vol. 4, Issue 3 · 14 Aug 2012 · 6,894 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordEmpirical Performance Metrics Study of Execution of Database Queries in Implementation of Web ServicesK. Velmurugan, M. A. Maluk MohamedProblem statement: Web services are increasingly being deployed in business applications, due to its unique features such as flexibility, interoperability and other features. Most of the business applications involve extensive use of database operations for data management in back end. Further business applications demand very high level of performance from software solutions and it is a continual and never-ending process. … …Journal of Computer Science, Vol. 8, Issue 8 · 30 Jul 2012 · 6,737 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordInfluence of Host Plant Species and Flush Growth Stage on the Asian Citrus Psyllid, Diaphorina citri KuwayamaStephen Leong Chan Teck, Abang Fatimah, Andrew Beattie et al.Problem statement: In order to establish the important host range of D. citri, the performance of this psyllid on different rutacous host plants was assessed. Apparent regional differences in host preferences of D. citri as noted above and the need for empirical knowledge of its host preferences in Malaysia where it is lacking. Approach: Experiments on host plant preference between … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 4 · 27 Dec 2011 · 10,043 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordEstimation Methods for Multicollinearity Proplem Combined with High Leverage Data PointsMoawad El-Fallah, Abd El-SallamProblem statement: Least Squares (LS) method has been the most popular method for estimating the parameters of a model due to its optimal properties and ease of computation. LS estimated regression may be seriously affected by multicollinearity which is a near linear dependency between two or more explanatory variables in the regression models. Although LS estimates are unbiased in the … …Journal of Mathematics and Statistics, Vol. 7, Issue 2 · 18 May 2011 · 7,617 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordFree Enterprise and Entrepreneurship in Serbia: An Analysis of Motivations, Financing and ObstaclesNina Radojevich-KelleyProblem statement: Entrepreneurship is considered to be a major driving force to economic development throughout the world. Free enterprise is challenging in any country, especially in a developing nation such as Serbia where communism and socialism prevailed for decades. The purpose of this study is to examine entrepreneurship and free enterprise in Serbia as well as the challenges or obstacles … …American Journal of Economics and Business Administration, Vol. 3, Issue 2 · 21 Apr 2011 · 8,046 accessesView PDFCite