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225 articles for “Existence”
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Research ArticleOpen accessIn the abstractStudy of the Flow Structure of A Thermal Plume Evolving in an Unlimited and in A Semi-Enclosed EnvironmentJamil Zinoubi, A. Ould Mohamed Mahmoud, Taoufik Naffouti et al.The basic objective of this study was to better knowledge the fine flow structure of thermal plume created by a heated disk, evolving in an unlimited and in a semi-enclosed environment. The flow visualization and the study of the temperature fluctuations spectrum show clearly a considerable change of the turbulent structure of the internal flow in comparison with the free … …American Journal of Applied Sciences, Vol. 3, Issue 1 · 31 Jan 2006 · 7,030 accessesView PDFCite
Research ArticleOpen accessIn the abstractFabric Behavior of Sand in Post-liquefactionSeyed Amirodin SadrnejadAn anisotropic plasticity model for post-liquefaction of the undrained behavior of sand is presented. The model incorporates the critical/steady state concept that postulates the existence of a state where sand continuously deforms at a certain constant effective stress depending two main parameters of both initial bulk parameters (void ratio or relative density) and the stress level (mean stress). The local … …American Journal of Applied Sciences, Vol. 2, Issue 12 · 31 Dec 2005 · 6,409 accessesView PDFCite
Research ArticleOpen accessIn the abstractPublicly Funded Education and Human Capital in the Presence of a Convex-Concave Education FunctionBinh Tran-Nam, Công Nghê TruongThis study investigates an aggregative optimal growth model in which short-lived individuals obtain their labour skill through education. The process of human capital formation is described by an increasing, convex-concave education function relating the success rate to the educational expenditure per student. The cost of education is publicly funded by an income tax imposed on adult workers. Despite the apparent … …American Journal of Applied Sciences, Vol. 2, Issue 13 · 7 Dec 2005 · 7,869 accessesView PDFCite
Research ArticleOpen accessIn the abstractOrigin and Trend of Distance Education in UgandaBbuye Juliana, Mango M. JohnDistance education has been in existence in Uganda since the 1960s, and it has grown steadily since that time. It is however a neglected area in terms of data collection and research. The courses that were running between 1960 and 1980s have scanty documentation. What can be traced include the upgrading course for teachers which upgraded 1000 teachers from vernacular … …Journal of Social Sciences, Vol. 1, Issue 3 · 30 Sep 2005 · 7,148 accessesView PDFCite
Research ArticleOpen accessIn the abstractForensic Considerations of HIV Infected and Those at RiskB. R. Sharma, Sumedha BangarWhile HIV infection is considered protected information in most parts of the world, it is clear that if a health care provider knows, that the patient is infected or is likely to be infected, then either the patient or those responsible for making their medical decisions must be informed of the infection or likelihood of infection. If not, the liability … …American Journal of Infectious Diseases, Vol. 1, Issue 3 · 30 Sep 2005 · 6,450 accessesView PDFCite
Research ArticleOpen accessIn the abstractTime-series Evidence for Export-led Growth Paradigm: A Case Study of ZimbabweCyril A. OgbokorThe study addresses empirically the Export-led Growth Hypothesis (ELGH) using Zimbabwe as a case study. This research work attempts to provide some evidence in this regard by examining the influence of trade on economic growth in the economy and ascertaining if the regressors utilised are good predictors of growth. Ordinary Least Squares (OLS) method is resorted in order to estimate … …Journal of Social Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 7,453 accessesView PDFCite
Research ArticleOpen accessIn the abstractHigh Density Groundwater Flow, Major-ion Chemistry and Field Experiments in a Closed Basin: Fuente de Piedra Playa Lake (Spain)Rodríguez-Rodríguez Miguel, Benavente Herrera José, Moral Martos FranciscoThis study presents the results of 10 years of field investigation in Fuente de Piedra Playa Lake located in southern Spain. These field observations along the playa's shore revealed evidence of a forced convective flow and the existence of density interface below the playa basin. An upward flux of groundwater from underlying formations could be a considerable part of its … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 6,305 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigation and Situation of Timber Harvesting Mechanization of Turkey and the Usage of Tractors in Timber ExtractionMurat Demir, Tolga OzturkIn this study is to summarize usage of tractors in timber extraction and major problems of mechanized timber harvesting in Turkey. Timber harvesting in Turkey is still carried out by manual methods due to economical, social and environmental constraints. Almost 80% of harvesting activities are mechanized in many developed countries while this value is only 5% in Turkey. Overall ratio … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 6,585 accessesView PDFCite
Research ArticleOpen accessIn the abstractModel for Load Balancing On Processors in Parallel Mining of Frequent ItemsetsRavindra Patel, S. S. Rana, K. R. PardasaniThe existence of many large transactions distributed databases with high data schemas, the centralized approach for mining association rules in such databases will not be feasible. Some distributed algorithms have been developed [FDM, CD], but none of them have considered the problem of data skews in distributed mining of association rules. The skewness of datasets reduces the workload balancing between … …American Journal of Applied Sciences, Vol. 2, Issue 5 · 31 May 2005 · 7,341 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Hybrid Fuzzy Neural Networks for the Detection of Tumors in Medical ImagesN. Benamrane, A. Freville, R. NekkacheIn this study, we propose an approach to detect suspect zones or tumors in medical images. The idea is to define with precision the existence of different kinds of lesions using a hybrid system, which combines Fuzzy Neural Networks and Expert System. After applying a method of image segmentation to extract regions (by region growing algorithm or by mathematical morphology … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,873 accessesView PDFCite