Volume 31, Issue 5
مرور بر اساس
ارسال های اخیر
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Energy Efficiency Analyses of Toolpaths in a Pocket Milling Process
(Materials and Energy Research Center, 2018-05-01)This paper presents an approach to analytically determine the most energy efficient toolpath strategy in mechanical machining. This was achieved by evaluating the electrical energy requirement of the NC codes generated for ...
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Estimate the Performance of Catalytic Converter Using Turbulence Induce Devices
(Materials and Energy Research Center, 2018-05-01)In this manuscript, the experimental setup was designed and fabricated for optimizing the parameters of a catalytic converter of INDICA V2 exhaust system. Three turbulence intensify devices, namely Swirl Venturi, Swirl ...
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Effect of Ambient Condition on the Shower Cooling Tower in Four Type of Climates Condition
(Materials and Energy Research Center, 2018-05-01)Water cooling by ambient takes place with two mechanisms of heat and mass transfer. Using packings at wet cooling towers has disadvantages such as obstruction, reduction of life expectancy and production of algae and fungi. ...
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Evaluation of Biogas as an Alternative Driving Force of Electrically Operated Vehicles: A Case Study
(Materials and Energy Research Center, 2018-05-01)In the present world, energy is indispensable for maintaining the comfort level and living standard of the human. On the other hand, the energy crisis is a major problem in most of the developing countries like Bangladesh. ...
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Experimental Investigations on the Thermal Performance of a Vertical Closed Loop Pulsating Heat Pipe Using Binary Mixture of Fluids
(Materials and Energy Research Center, 2018-05-01)This paper presents the experimental investigations conducted on a vertical closed loop pulsating heat pipe (VCLPHP) to evaluate the thermal performance. The values of thermal resistance and heat transfer coefficient ...
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An Algorithm based on Predicting the Interface in Phase Change Materials
(Materials and Energy Research Center, 2018-05-01)Phase change materials are substances that absorb and release thermal energy during the process of melting and freezing. This characteristic makes phase change material (PCM) a favourite choice to integrate it in buildings. ...
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A Study on the Contact Ellipse and the Contact Pressure During the Wheel Wear through Passing the Tracks including Several Sharp Curves
(Materials and Energy Research Center, 2018-05-01)Wheel wear has been a concern in the railway for several decades. Studying the form change of the wheel/rail contacts in particular railways consisting of sharp curves helps to identify the risk of severe or catastrophic ...
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Enhancement of the Cooling System Performance of the Proton-exchange Membrane Fuel Cell By Baffle-restricted Coolant Flow Channels
(Materials and Energy Research Center, 2018-05-01)The performance of proton-exchange membrane fuel cell cooling system using coolant flow channels enhanced with baffles was numerically investigated. To do this, the maximum temperature of the cooling plate, temperature ...
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Experimental Study on Flow Characteristics Around Twin Wind Blades (RESEARCH NOTE)
(Materials and Energy Research Center, 2018-05-01)In the current study, twin wind blades are designed, fabricated and the effect of various gap ratio (g*) at various angle of attacks (α) on a next to each other twin wind blades are examined in an open-channel wind tunnel. ...
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A New Multi-objective Model for Multi-mode Project Planning with Risk
(Materials and Energy Research Center, 2018-05-01)The purpose of this problem is to choose a set of project activities for crashing, in a way that the expected project time, cost and risk are minimized and the expected quality is maximized. In this problem, each project ...
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A Study of the Tribological Properties of Sputter-deposited MoSX/Cr Coatings
(Materials and Energy Research Center, 2018-05-01)In this investigation, MoSx/Cr coatings were deposited by direct-current magnetron sputter onto Ck45 (AISI 1045) plain carbon steel substrates. The MoSx/Cr ratio in the coatings was controlled by sputtering the composite ...
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Test Power Reduction by Simultaneous Don’t Care Filling and Ordering of Test Patterns Considering Pattern Dependency
(Materials and Energy Research Center, 2018-05-01)Estimating and minimizing the maximum power dissipation during testing is an important task in VLSI circuit realization since the power value affects the reliability of the circuits. Therefore during testing a methodology ...
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Optimal Decisions in a Dual-channel Supply Chain for the Substitute Products with the Special Orders under DisruptionRisk and Brand Consideration
(Materials and Energy Research Center, 2018-05-01)In this paper, a three-echelon supply chain , including two producers, distributor and retailer who produce products in different brands have been considered. Any manufacturer, has a separate channel and the exclusive ...
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Project Scheduling with Simultaneous Optimization, Time, Net Present Value, and Project Flexibility for Multimode Activities with Constrained Renewable Resources
(Materials and Energy Research Center, 2018-05-01)Project success is assessed based on various criteria, every one of which enjoys a different level of importance for the beneficiaries and decision makers. Time and cost are the most important objectives and criteria for ...
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Vertical Ground Reaction Force Gait Patterns During Walking in Children with Autism Spectrum Disorders
(Materials and Energy Research Center, 2018-05-01)The characteristics of vertical ground reaction force (VGRF) gait patterns in children with autism spectrum disorders (ASD) are poorly understood. The purpose of this study was to identify VGRF gait features that discriminate ...
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Process Optimization of Deposition Conditions for Low Temperature Thin Film Insulators used in Thin Film Transistors Displays
(Materials and Energy Research Center, 2018-05-01)Deposition process for thin insulator used in polysilicon gate dielectric of thin film transistors are optimized. Silane and N2O plasma are used to form SiO2 layers at temperatures below 150 ºC. The deposition conditions ...
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Design, Modeling and Experiments of An In-pipe Magnetostrictive Impact Drive Mechanism
(Materials and Energy Research Center, 2018-05-01)This paper presents a magnetostrictive in-pipe impact drive mechanism (IDM). To estimate the output performances of the IDM, a dynamics model was developed based on the magnetostrictive material constitutive model and ...
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A Unique Approach of Noise Elimination from Electroencephalography Signals between Normal and Meditation State
(Materials and Energy Research Center, 2018-05-01)In this paper, unique approach is presented for the electroencephalography (EEG) signals analysis. This is based on Eigen values distribution of a matrix which is called as scaled Hankel matrix. This gives us a way to find ...
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Sensitivity Analysis of a Wideband Backward-wave Directional Coupler Using Neural Network and Monte Carlo Method (RESEARCH NOTE)
(Materials and Energy Research Center, 2018-05-01)In this paper sensitivity analysis of a wideband backward-wave directional coupler due to fabrication imperfections is done using Monte Carlo method. For using this method, a random stochastic process with Gaussian ...
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A Novel Method for Modeling and Simulation of Asymmetrical Impedance-source Converters
(Materials and Energy Research Center, 2018-05-01)Z-Source converter or impedance-source converter is a kind of power converters, which has the responsibility to convert the direct current to alternative current. This converter with respect to its circuit diagram acts as ...
