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848 articles for “Performance analysis”
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Research ArticleOpen accessAll words, across the recordKinematic Analysis of Exoskeleton Suit for Human ArmSurachai PanichProblem statement: There are many robotic arms developed for providing care to physically disabled people. It is difficult to find robot designs in literature that articulate such a procedure. Therefore, it is our hope that the design work shown in this study may serve as a good example of a systematic method for rehabilitation robot design. Approach: The arm exoskeleton … …Journal of Computer Science, Vol. 6, Issue 11 · 23 Oct 2010 · 7,803 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordA New Engineering Method for Fuzzy Reliability Analysis of Surge Control in Centrifugal CompressorAhmed Hafaifa, Ferhat Laaouad, Moulod GuemanaProblem statement: The surge phenomenon in the centrifugal compressor, the non-linearities and uncertainties of the compression system make it impossible to use a conventional controller over a wide range of operation. Approach: A new dual fuzzy controller for nonlinear model of compression system was proposed in this study. This fuzzy controller was designed that consisted of active surge control and … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 8,224 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordThermal-Mechanical Analysis of a Different Leadframe Thickness of Semiconductor Package under the Reflow ProcessS. Abdullah, M. F. Abdullah, A. K. Ariffin, A. JalarThe copper-based leadframe is practically proven effective in the thermal and reliability of a Quad Flat No Lead (QFN) three dimension (3D) stacked-die semiconductor package. Reducing the copper thickness is understood to present various thermal and reliability failure mode and mechanisms, such as die cracking and delamination. However, no in-depth study has been pursued in order to determine the capability … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,715 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordThe Random Walk Hypothesis for the Zimbabwe Stock Exchange: January 1998-November 2006Tafirenyika Sunde, James ZivanomoyoThe main intention of this study was to investigate, using monthly data, whether prices in the Zimbabwe Stock Exchange (ZSE) follow a random-walk process as required for there to be market efficiency. The study applied the unit root tests to establish if the ZSE followed a random walk or not. If the ZSE follows a random walk it is said … …Journal of Social Sciences, Vol. 4, Issue 3 · 30 Sep 2008 · 8,085 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordFuzzy Assignment Procedure based on Categories' BoundariesGeorge Rigopoulos, John Psarras, Dimitrios Th. AskounisWe presented a procedure for multicriteria assignment problems. Assignment to a category is based on the comparison between an action and categories’s boundaries. Boundary is represented by the least typical action that can be included in the category, and is considered as the category’s inclusion threshold. Comparison is executed considering performance on evaluation criteria and calculation of a fuzzy inclusion … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 7,040 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordDesign, Validation, Simulation and Parametric Evaluation of a Novel Protocol for Locating Mobile Agents in Multiregion EnvironmentRama Sushil, Kumkum Garg, Rama BhargavaMobile agents are processes that can be dispatched from source computer and be transported to remote servers for execution, have been widely argued to be an important enabling technology for future systems. Location management is a necessity for locating mobile agents in a network of mobile agent hosts for controlling, monitoring and communication during processing and it still represents an … …Journal of Computer Science, Vol. 4, Issue 3 · 31 Mar 2008 · 6,936 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordNonparametric Analysis on System Availability: Confidence Bound and Power FunctionJau-Chuan Ke, Yunn-Kuang ChuIn this study we consider the steady-state availability, denoted A, of a system with distribution-free failure and repair time. In particular, we are interested in constructing a lower confidence bound and a testing framework for A. We first show that the natural estimator  of A, defined as the ratio of the failure time sample mean to the sum of … …Journal of Mathematics and Statistics, Vol. 3, Issue 4 · 31 Dec 2007 · 6,692 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordContractor's PerceptioFaridah Muhamad HalilContractor selection is one of the main activities of clients. Without a proper and accurate method for selecting the most appropriate contractor, the performance of the project will be affected. The usage of statistical method is implemented by Public Works Department as a better tool for the selection of suitable contractor. This method would avoid a personal preference during selection … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 6,834 accessesView PDFCite