176 results for “Design Optimization”

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Research ArticleOpen accessAll words, across the recordModeling and Optimization of the Vortex Tube with Computational Fluid Dynamic AnalysisK.K. Zin, A. Hansske, F. ZieglerProblem statement: This study illustrated the influence of the Length to Diameter (L/D) on the fluid flow characteristics inside the counter-flow Ranque-Hilsch vortex tube predicted by Computational Fluid Dynamic (CFD) and validated through experiment. Approach: The swirl velocity, axial velocity, radial velocity component and also secondary circulation flow (back-flow) along with the pressure within the vortex tube were simulated and … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 7,828 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordOptimization of Micro Silica in Light Weight Lika ConcreteAlireza Mirza Goltabar Roshan, Mohammad Bagher Hosseinian, Hossein Khalilpasha, Reza AmirpourProblem statement: In this article, special kind of light weight aggregate named lika had been studied. Approach: The aim of this research was first, to achieve the best mix design of light weight concrete which could be in light weight concrete category and second, by applying the first part gain the main reason of this research which was finding the … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 7,620 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordOptimization Techniques for Variable Selection in Binary Logistic Regression Model Applied to Desire for Children DataS. K. Sarkar, Habshah MidiProblem statement: The population problem is the biggest problem in the world. In the global and regional context, Bangladesh population has drawn considerable attention of the social scientists, policy makers and international organizations. Bangladesh is now world’s 10th populous country having about 140 million people. The recent experience of Bangladesh shows that fertility can sustain impressive declines even when women’s … …Journal of Mathematics and Statistics, Vol. 5, Issue 4 · 31 Dec 2009 · 7,095 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordDesign of Modified Adaptive Huffman Data Compression Algorithm for Wireless Sensor NetworkC. Tharini, P. Vanaja RanjanProblem statement: Efficient utilization of energy has been a core area of research in wireless sensor networks. Sensor nodes deployed in a network are battery operated. As batteries cannot be recharged frequently in the field setting, energy optimization becomes paramount in prolonging the battery-life and, consequently, the network lifetime. The communication module utilizes a major part of the energy expenditure … …Journal of Computer Science, Vol. 5, Issue 6 · 30 Jun 2009 · 8,351 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordOptimization of the Correcting Gains of Fractional Order Hold Devices for Inter-sample Output ReconstructionM. D.L. Sen, A. BilbaoThe design of Fractional Order Holds (FROH) of correcting gains β ∈ [-1, 1] (potentially and possibly including zero-order holds, ZOH with β = 0, and firelation holds, FROH relating) is discussed related to achieving output deviations being close with respect to its sampled values. A squared error time- integral between the current output and its sampled values is minimized … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 7,024 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordAn Adaptive Modulation Scaling Scheme for Quality of Services Ensurance in Wireless Sensor NetwoksYong Yuan, Zongkai Yang, Jianhua HeEnergy consumption has been a key concern of data gathering in wireless sensor networks. Previous research works show that modulation scaling is an efficient technique to reduce energy consumption. However, such technique will also impact on both packet delivery latency and packet loss, therefore, may result in adverse effects on the qualities of applications. In this study, the problem of … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 6,780 accessesView PDF Cite