Number of Articles: 15
Effect of Orifice Shape and Bore-Area on Noise Attenuation in a Reactive Muffler
Volume 31, Issue 11 , July 2013, Page 2014-2029
Abstract
IC engines are a major source of noise pollution. Mufflers require specific design and construction. Considering various noise parameters produced by the engine,the conventional design ... Read More ...Mechanical Properties of Friction Stir Welded Aluminum Alloy with Butt and Lap Cases
Volume 31, Issue 11 , July 2013, Page 2030-2038
Abstract
Mechanical properties were investigated in base and friction stir linear welds of 7075 aluminum alloy. Welding tools consist of a shoulder with a pin and with-out pin. This work addresses ... Read More ...Studying the Effect of Both Gas Oil and Diesel Fuel on Polypropylene-Polycarbonate Reinforcement with Carbon Black
Volume 31, Issue 11 , July 2013, Page 2039-2054
Abstract
In the present research, the diffusion of prepared sample blends (PP/PC) unfilled-filled with different amounts of carbon black (2 – 7) wt% and at different temperatures (25oC, ... Read More ...A Design Study and Performance Prediction of an Internal Compression Supersonic Air Intake
Volume 31, Issue 11 , July 2013, Page 2055-2075
Abstract
The aim of this research is to carryout a design study on a variable geometry rectangular supersonic air-intake at different flight conditions. The design of the air-intake at supersonic ... Read More ...Accuracy Assessment of 2D and 3D Geometric Correction Models for Different Topography in Iraq
Volume 31, Issue 11 , July 2013, Page 2076-2085
Abstract
In recent decades, Remote sensing data becomes one of the basic information required for mapping and different applications in geomatics. In this research, different mathematical models ... Read More ...Design and Implementation of MC-CDMA Technique Using FPGA
Volume 31, Issue 11 , July 2013, Page 2085-2097
Abstract
Multicarrier Code Division Multiple Access (MC-CDMA) is attractive technique for high speed wireless data transmission; it's a combination of Orthogonal Frequency Division Multiplexing ... Read More ...Drinking Water Quality for Al-Mustansiriya University
Volume 31, Issue 11 , July 2013, Page 2098-2115
Abstract
The aim of the research is to study water quality in Al-Mustansiriya university, which is supplied by water through a4 inch diameter pipe, water collected in a very old ground tank ... Read More ...Design and Simulation of Optical Filter for Dense Wavelength Division Multiplexing (DWDM) System
Volume 31, Issue 11 , July 2013, Page 2116-2127
Abstract
In this paper, it is demonstrated, by means of simulations, the practical feasibility of an interference filter, implemented from a stack of high and low index birefringent thin films ... Read More ...PSO-FL Controller of Separately Excited DC Motor
Volume 31, Issue 11 , July 2013, Page 2128-2140
Abstract
This paper presents an application of highbrid controller of a Separately Exited DC Motor (SEDM) using PSO-FL techniques. The controller is designed depending on fuzzy logic rules are ... Read More ...Real Time System Used to Improve the Production and Quality of Mushroom
Volume 31, Issue 11 , July 2013, Page 2141-2156
Abstract
Mushroom is one of agricultural products that are in increasing demand several folds in recent years so, mushroom cultivation represents important income source for farmers and countries. ... Read More ...Implementation of Golay Complementary Code Sequences Generator Based on FPGA
Volume 31, Issue 11 , July 2013, Page 2157-2165
Abstract
Golay sequences have some properties make it distinctive in the applications and results. However, for this distinction must select the code sequences carefully and accurately. Therefore, ... Read More ...Study of Short Cracks Growth Behavior for Duralumin 7075- T6 Enhanced by Artificial Ageing as Thermal and Chemical Treatments Under Rotating Bending Loading
Volume 31, Issue 11 , July 2013, Page 2166-2182
Abstract
The fatigue life of ductile metals is controlled mainly by the propagation life of a short surface crack; to clarify the growth behavior of short cracks is crucial factor to the safe ... Read More ...Computer Simulation Using Fuzzy LogicModel to Predict Hot Corrosion Kinetics in Molten Salt of Steel-T21 Coated by Simultaneous Yttrium-Doped Aluminizing-Siliconizing Process
Volume 31, Issue 11 , July 2013, Page 2183-2197
Abstract
The present paper describes fuzzy logic simulation of an experimental study on the behavior of hot corrosion in molten salt (Na2SO4) of steel-T21 coated by simultaneous yttrium-doped ... Read More ...Formation of Compressive Residual Stresses by Shot Peening for Spot Welded Stainless Steel Plates
Volume 31, Issue 11 , July 2013, Page 2198-2210
Abstract
In this paper, a stainless steel 316 was selected for this study and tested to obtain its chemical composition, mechanical properties and stress relieving. Then, two plates (55*55*1) ... Read More ...An Economic Importance for Using the Flat Plate Solar Receiver in a Single Effect Cooling System Operation
Volume 31, Issue 11 , July 2013, Page 149-168