مرور Volume 5, Issue 5 بر اساس عنوان
در حال نمایش موارد 1 - 11 از 11
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Automated detection of inner surface defects in pipes using image processing algorithms
(Islamic Azad University Majlesi Branch, 2012-12-01)This paper presents a new methodology for the automated inspection of pipes. Standard inspection systems are based on closed-circuit television cameras which are mounted on remotely controlled robots and connected to remote ...
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Effect of Mandrel, Its Clearance and Pressure Die on Tube Bending Process via Rotary Draw Bending Method
(Islamic Azad University Majlesi Branch, 2012-12-01)One of the most prominent industries is bending, while using rotary draw bending method is known to be the most conventional approach for thin wall tube bending. Pressure die is one effective tool which boosts the tube ...
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Effects of Mechanical Alloying on microstructure and microhardness of Nanocrystalline Ni–50at.% Ti Shape Memory Alloy’
(Islamic Azad University Majlesi Branch, 2012-12-01)In this work, nanostructured NiTi shape memory alloy with equal atomic percentage was produced through mechanical alloying. The result exhibited that after 60 h of mechanical alloying of high purity elemental powder mixtures ...
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Impact Behavior of Ceramic-Metal Armour by Al2O3-Nano SiC Nano Composite
(Islamic Azad University Majlesi Branch, 2012-12-01)Abstract: Alumina (Al2O3) is one of the most practical ceramics used in making ceramic-metal armours. To improve the properties of alumina, some other materials are added to it. In this paper, SiC material as Nano powder ...
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Investigating Effect of Using Piezoelectric layers on the Forced Vibration of Circular Plates
(Islamic Azad University Majlesi Branch, 2012-12-01)This deals with the harmonic forced vibration of a circular plate surface bonded by two piezoelectric layers, based on the Kirchhoff plate model. The form of electric potential field in the piezoelectric layer is assumed ...
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Kinematic Analysis of a Novel 3-CRS/PU Parallel Manipulator
(Islamic Azad University Majlesi Branch, 2012-12-01)In this research work, a novel parallel manipulator with high positioning and orienting rate is introduced. This mechanism has two rotational and one translational degree of freedom. Kinematics and Jacobian analysis are ...
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Numerical Simulation of Turbulent Flow and Heat Transfer in a B-Type Section Pipe with Porous Bottom Wall
(Islamic Azad University Majlesi Branch, 2012-12-01)In this work, three-dimensional turbulent forced convection flow through a B-Type Section Pipe, which porous material inserted at the bottom wall, is investigated numerically. The B-Type section pipe are used in cooling ...
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Obtain the Optimum Parameters for Cutting Hard and Tough Material (Hardox Steel) by Abrasive Water Jet Cutting Process
(Islamic Azad University Majlesi Branch, 2012-12-01)Abstract: Nowadays, the non-traditional processes such as “LASER, EDM and AWJ” used for cutting high thickness sheet metal. Hardox is hard and tough steel alloy and it has many industrialize applications. One best process ...
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Performance Improvement of Solar Stills via Experimental Investigation
(Islamic Azad University Majlesi Branch, 2012-12-01)Abstract: There is always a need to increase a distillate output of Solar still. If plates will be used inside solar still then distillate output of solar still are expected to increase. Hence, an experimental study is ...
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Prohibition of boiler feed water pump failure in Power Plant
(Islamic Azad University Majlesi Branch, 2012-12-01)This paper deals with a failure investigation of boiler feed pump’s shaft of a steam power plant. Boiler feed water pump is a specific type of pump used to pump, feed water into a steam boiler and is one of most important ...
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Stress analysis of rotational shaft with a constant angular speed using strain gradient theory
(Islamic Azad University Majlesi Branch, 2012-12-01)In classical mechanics, considering Hook’s law stress is a linear function of strain. While in strain gradient theory stress is a function of strain and strain differentials. In this paper, Novel formulation relating stress ...



