مرور Volume 33, Issue 10 بر اساس عنوان
در حال نمایش موارد 1 - 20 از 26
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An Adaptively-damped Compressible-liquid Model for Non-cavitating Hydraulic Surges (Materials and Energy Research Center, 2020-10-01)This research presents a compact and computationally-efficient two-equation compressible-liquid model. The model is specifically developed for the numerical computation of hydraulic surges in pipes under high fluid pressure ...
 
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A Closed-loop Supply Chain Network Design Problem in Copper Industry (Materials and Energy Research Center, 2020-10-01)Undoubtedly, metals are the basis of the sustainable development of all human societies. In the last century, the role of copper, as the third most widely used metal, after steel and aluminum, has been crucial. Copper is ...
 
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Co-TiO2 Nanoparticles as the Reinforcement for Fe Soft Magnetic Composites with Enhanced Mechanical and Magnetic Properties via Pulse Electrodeposition (Materials and Energy Research Center, 2020-10-01)This study is an attempt to produce surface nanocrystalline composite of Fe-Co-TiO2 at various current densities in the range of 20 to 50 mA/cm2 via pulse electrodeposition method. The prepared ...
 
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The Comparison of Punching Shear Capacity in Solid and Void Two-Way Slabs on Soil Substrate in Relation to Spring Stiffness Changes (Materials and Energy Research Center, 2020-10-01)This study aims to investigate punching shear in solid and void slabs as well as simulated soil and spring models as distributed loads on the mentioned slabs. To this end, the slabs were tested using the nonlinear finite ...
 
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Control of a Single Stage Boost Inverter Based on Dynamic Sliding Mode Control with Power Decoupling (Materials and Energy Research Center, 2020-10-01)In this paper, the problem of control a single-stage boost inverter is studied. The goal is to achieve a system with robustness against variations in parameters, fast response, high-quality AC voltage, and smooth DC current. ...
 
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Effect of Porous Medium Positioning on Heat Transfer of Micro-channel with Jet (Materials and Energy Research Center, 2020-10-01)In this paper, the influence of the locating additive or placing porous-medium film on the heat transfer of a micro-channel by injecting fluid from its lower wall is investigated. The boundary condition slip-walls for the ...
 
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Experimental Investigation of Spur Gear Tooth Crack Location and Depth Detection using Short-time Averaging Method and Statistical Indicators (Materials and Energy Research Center, 2020-10-01)Gear systems are one of the most functional power transmission systems in the industry. Crack is one of the common defects in gears which is caused by excessive loading, sudden impact and shortcomings in the gears construction. ...
 
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A Fast Processing Discontinuous Control Strategy for Vienna Rectifier (Materials and Energy Research Center, 2020-10-01)In this paper, Vienna rectifier has been inspected as one of the prominent topologies among three-level switched-mode rectifiers. A fast processing discontinuous modulation strategy has been proposed with the aim of improving ...
 
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Heat Transfer Performance Analysis and Optimization of Exhaust Gas Recirculation Cooler with Different Structural Characteristics (Materials and Energy Research Center, 2020-10-01)In order to improve the heat transfer performance of an exhaust gas recirculation (EGR) cooler, different structural characteristics are numerically and experimentally studied. In numerical analyses, the presented pitted ...
 
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Hybrid Artificial Intelligence Model Development for Roller-compacted Concrete Compressive Strength Estimation (Materials and Energy Research Center, 2020-10-01)This study implemented the artificial bee colony (ABC) metaheuristic algorithm to optimize the Artificial Neural Network (ANN) values for improving the accuracy of model and evaluate the developed model. Compressive strength ...
 
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Improving Thermal and Mechanical Property of Lightweight Concrete Using N-Butyl Stearate/Expanded Clay Aggregate with Alccofine1203 (Materials and Energy Research Center, 2020-10-01)Phase change material (PCM) as n-butyl stearate (n-BS) was immersed in expanded clay aggregate (ECA) by two methods, direct immersion at room temperature and immersion at elevated temperature (30oC, 40oC ...
 
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In-depth Investigation of Project Planning and Control Software Package Application in the Construction Industry of Iran (Materials and Energy Research Center, 2020-10-01)Inefficient project planning and control have been identified as the main contributor to the reduced performance of the construction industry in Iran. Meanwhile, improper use of planning and control software packages ...
 
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Influence of Fiber on Shear Behavior of Concrete Exposed to Elevated Temperature (Materials and Energy Research Center, 2020-10-01)Fire accidents are inevitable and it is one of the significant hazards, which causes loss of life and valuables. The present investigation focused to study the influence of fibers on shear strength of concrete exposed to ...
 
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Influence of Geological and Technological Parameters on Effectiveness of Hydrochloric Acid Treatment of Carbonate Reservoirs (Materials and Energy Research Center, 2020-10-01)Hydrochloric acid treatment is the most common oil production stimulation treatment to date. Yet, most of operations fail to deliver the targeted results. For a more competent design of acid treatment of carbonate reservoirs, ...
 
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Investigation of Vibration Modes of Double-lap Adhesive Joints: Effect of Slot (Materials and Energy Research Center, 2020-10-01)Adhesive joints represent a viable alternative to traditional joining methods. The analysis of frequencies and modal shapes is fundamental to predict the vibrational behaviour of a structural component subjected to dynamic ...
 
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Joint Optimization of a Bilevel Logistics Network and an Arc Interdiction Location-routing Problem (Materials and Energy Research Center, 2020-10-01)There is a high interest in optimization of transportation and logistics networks due to its high impact on the economic performance of supply chain networks. This paper presents a bilevel mixed-integer programming model ...
 
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Micro-structural Deformation Field Analysis of Aluminum Foam using Finite Element Method and Digital Image Correlation (Materials and Energy Research Center, 2020-10-01)Porous materials especially closed-cell metallic foams play important roles among novel materials because of their good characteristics e.g. high strength to weight ratio and crashworthiness. On the other hand, mechanical ...
 
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A Multilayer Motion Direction Based Model for Tracking Vehicles at Intersections (Materials and Energy Research Center, 2020-10-01)Visual vehicle tracking is an important topic in intelligent transportation systems. Intersections are challenging locations for visual systems to track vehicles which are simultaneously moving in different directions. In ...
 
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New Steel Divergent Braced Frame Systems for Strengthening of Reinforced Concrete Frames (Materials and Energy Research Center, 2020-10-01)The seismic strengthening methods are very important in earthquake-prone countries. Steel divergent bracing with replaceable link beam tied in steel frame and embedded in a concrete frame is a new method for a concrete ...
 
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A Novel Excellence Model of the ICT Industry: Case Study on Telecommunications Backbone Network of Iran (Materials and Energy Research Center, 2020-10-01)Todays, Information and Communications Technology (ICT), as one of the most effective factors of the advancement in all the aspects such as governance, security and risk, economics and technology, which is among the ...
 



