Volume 24, Issue 2
مرور بر اساس
ارسال های اخیر
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An analytical method for finding exact solitary wave solutions ofthe coupled (2 1)-dimensional Painlevé Burgers equation
(Sharif University of Technology, 2017-04-01)In this present study we obtained some new analytical solutions, such as trigonometric function, rational function, and hyperbolic function solutions by using of new extension of the (G'/G)-expansion method to the coupled ...
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Stress Analyses in Single Deck and Double Deck Floating Roofs Subjected to Earthquake Ground Motions
(Sharif University of Technology, 2017-04-01)This paper investigates the stress pattern in circular single and double deck floating roofs excited by earthquake ground motion. Variational formulation is employed to derive the governing equations. Response of the ...
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Multilevel optimization of profile of splitter blades in the impeller of a centrifugal compressor
(Sharif University of Technology, 2017-04-01)In this research a multilevel optimization on the profile of splitter blades of a turbocharger compressor is performed using genetic algorithm in order to improve its performance. Successive corrections of profile at hub, ...
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High frequency vibrations of quartz crystals subject to initial thermo-mechanical bias
(Sharif University of Technology, 2017-04-01)When a quartz resonator is exposed to an initial mechanical bias, its resonance frequency changes. This change in the resonance frequency is called the forcefrequency effect and isquantified by force frequency coefficient. ...
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Improving Lateral Dynamics of Vehicle Using Direct Yaw Moment Controller Based on Quantitative Feedback Theory
(Sharif University of Technology, 2017-04-01)In this paper a robust controller based on quantitative feedback theory is designed to improve the stability of a four wheel vehicle using direct yaw moment controller. The essential yaw moment is calculated by this robust ...
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Fatigue behavior of nano-grained pure copper processed by equal channel angular rolling
(Sharif University of Technology, 2017-04-01)The equal channel angular rolling process was successfully performed on commercial pure copper. After 4 passes of this process, grains with a diameter of about 70- 500 nm were formed. The fatigue test results showed that ...
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Application of Homotopy Perturbation Sumudu Transform Method for Solving Nonlinear Fractional Heat-like Equations
(Sharif University of Technology, 2017-04-01)In this paper, we propose an algorithm to find approximate solutions of the proposed system of the fractional heat-like equations. The proposed algorithm basically illustrates how the two powerful algorithms, the homotopy ...
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Economic and Environmental Evaluations of Different Operation Alternatives of an Aquifer Thermal Energy Storage in Tehran, Iran
(Sharif University of Technology, 2017-04-01)Aquifers are underground porous formations containing water. Confined aquifers are surrounded by impermeable layers on top and bottom, called cap rocks and bed rocks. A confined aquifer with a very low groundwater flow ...
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Effects of non-equilibrium condensation on aerodynamics of the flow field in a steam turbine cascade
(Sharif University of Technology, 2017-04-01)In the present paper an in-house CFD code is developed using Roe scheme to simulate condensing two-phase flow in blade to blade passage of a steam turbine. Effects of condensation on the flow field of steam turbine rotor ...
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On a Conceptual Method for the Extraction of Wind Energy Using Airfoil and Linear Generator
(Sharif University of Technology, 2017-04-01)In this paper, a new conceptual method is introduced in order to extract wind energy using a set of airfoils and a linear generator. Indeed, the idea of this method is inspired from the ocean wave energy extractor, and the ...



