Volume 25, Issue 3
مرور بر اساس
ارسال های اخیر
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Analytical Investigation of Jeffery-hamel Fow with High Magnetic Field and Nano Particle by RVIM
(Materials and Energy Research Center, 2012-09-01)Many researchers have been interested in application of mathematical methods to find analytical solutions of nonlinear equations and for this purpose, new methods have been developed. One of the newest analytical methods ...
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Dispersion and Deposition of Micro Particles over Two Square Obstacles in a Channel via Hybrid Lattice Boltzmann Method and Discrete Phase model
(Materials and Energy Research Center, 2012-09-01)Dispersion and deposition of aerosol particles over two square cylinders confined in a channel in laminar unsteady vortical flow were investigated numerically. Lattice Boltzmann method was used to calculate fluid characteristics ...
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The Numerical Exergy Analysis of H2/Air Combustion with Detailed Chemical Kinetic Simulation Model
(Materials and Energy Research Center, 2012-09-01)Energy and exergy concepts come from thermodynamics laws and are applicable to all fields of science and engineering. This study considers numerical simulations of combustion of hydrogen with air in a constant pressure ...
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Fuzzy Reliability Evaluation of a Repairable System with Imperfect Coverage, Reboot and Common-cause Shock Failure
(Materials and Energy Research Center, 2012-09-01)In the present investigation, we deal with the reliability characteristics of a repairable system consisting of two independent operating units, by incorporating the coverage factor. The probability of the successful ...
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Working Vacation Queue with Second Optional Service and Unreliable Server
(Materials and Energy Research Center, 2012-09-01)An M/M/1 queueing system with second optional service and unreliable server is studied. We consider that the server works at different rate rather than being idle during the vacation period. The customers arrive to the ...
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Numerical Modeling of an Innovative Bipolar Plate Design Based on the Leaf Venation Patterns for PEM Fuel Cells
(Materials and Energy Research Center, 2012-09-01)Flow channel design on bipolar plates has a direct effect on Proton Exchange Membrane (PEM) fuel cell performance. It has been found out that the flow field design has a deterministic role on the mass transport and water ...
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Constrained Nonlinear Optimal Control via a Hybrid BA-SD
(Materials and Energy Research Center, 2012-09-01)The non-convex behavior presented by nonlinear systems limits the application of classical optimization techniques to solve optimal control problems for these kinds of systems. This paper proposes a hybrid algorithm, namely ...
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Comparison of MRAS Based Rotor Resistance Estimator Using Reactive Power and Flux Based Techniques for Space Vector PWM Inverter Fed Induction Motor Drives
(Materials and Energy Research Center, 2012-09-01)The performance of Vector Controlled Induction Motor drive depends on the accuracy of rotor resistance which will vary with temperature and frequency. The MRAS approach using reactive power and flux as a state variable for ...
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Impact of Service on Customers’ Demand and Members’ Profit in Supply Chain
(Materials and Energy Research Center, 2012-09-01)This paper investigates the impact of provided service by the retailers and manufacturers on customers’ demand and members’ profit in a supply chain. It focuses on a supply chain structure with one manufacturer and a common ...
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Boosting Passage Retrieval through Reuse in Question Answering
(Materials and Energy Research Center, 2012-09-01)Question Answering (QA) is an emerging important field in Information Retrieval. In a QA system the archive of previous questions asked from the system makes a collection full of useful factual nuggets. This paper makes ...
