Analysis the Effects of Shot Peening Upon the Mechanical and Fatigue Properties of 2024-T351 Al-Alloy
Analysis the Effects of Shot Peening Upon the Mechanical and Fatigue Properties of 2024-T351 Al-Alloy

Alalkawi H. J. M; Talal Abed-Aljabar; Safaa H. Alokaidi

Volume 30, Issue 1 , January 2012, Page 1-12

https://doi.org/10.30684/etj.30.1.1

Abstract
  This paper presents an experimental study on the effect of shot peening onmechanical properties and residual stresses of 2024-T351 Aluminum alloy. Under theeffects of shot peening time ...  Read More ...
A Modified Grouped Linear ZF Algorithm Using Different Modulation Schemes for MIMO Systems
A Modified Grouped Linear ZF Algorithm Using Different Modulation Schemes for MIMO Systems

Ahmed Gh. Wadday; Saod A. Alseyab; Abdulkareem S. bdullah

Volume 30, Issue 1 , January 2012, Page 13-23

https://doi.org/10.30684/etj.30.1.2

Abstract
  A new algorithm for a group iterative linear Zero-Forcing (ZF) receiver formultiple-input multiple-output (MIMO) systems is proposed in this paper. Theproposed algorithm merges between ...  Read More ...
Studying a Buckling Behavior for Edge Cracked Plates Under Compression
Studying a Buckling Behavior for Edge Cracked Plates Under Compression

Nathera Abdual Hassan Saleh; Saddam Kallsan Kuess

Volume 30, Issue 1 , January 2012, Page 24-42

https://doi.org/10.30684/etj.30.1.3

Abstract
  In this work, the buckling behavior for edge cracked plates undercompression loading is studied considering the influence of the crack parameters(i.e. size, location and orientation), ...  Read More ...
Fabrication and Study Nanostructure Deposited Thin Films Heterojunction Solar Cell
Fabrication and Study Nanostructure Deposited Thin Films Heterojunction Solar Cell

Khaled Z.Yahya; Muhanad Adel Ahmed

Volume 30, Issue 1 , January 2012, Page 43-50

https://doi.org/10.30684/etj.30.1.4

Abstract
  In the present paper, nanostructure tin oxide (SnO2) thin films on Si P-type substrates heterojunction solar cell has been made by using a pulsed 532 nm Nd:YAG laser. Deposition of ...  Read More ...
Modeling and Control of pH Process for Weak Acid-Weak Base System
Modeling and Control of pH Process for Weak Acid-Weak Base System

Karima M. Butrus; Hayder A. Mohsin; Ali R. Mohammad Jawad

Volume 30, Issue 1 , January 2012, Page 51-66

https://doi.org/10.30684/etj.30.1.5

Abstract
  This paper studies the model and control of pH neutralization process of waste water system using different control schemes. An experimental investigation was conducted for the dynamic ...  Read More ...
Phosphate Rock Treatment with Hydrochloric Acid for Increasing P2O5 Content
Phosphate Rock Treatment with Hydrochloric Acid for Increasing P2O5 Content

Adel Sharif Hamadi; Shurooq Talib Remedhan; Haider Abd Ali

Volume 30, Issue 1 , January 2012, Page 67-76

https://doi.org/10.30684/etj.30.1.6

Abstract
  The present paper deals with the treatment of phosphate obtained from a commercial sample of Akashat phosphate ore in hydrochloric acid. The factors studied are effects of the temperature ...  Read More ...
Predictions on Surface Finish In EDM Based Upon Genetic Network Model
Predictions on Surface Finish In EDM Based Upon Genetic Network Model

Shukry H. Aghdeab

Volume 30, Issue 1 , January 2012, Page 77-86

https://doi.org/10.30684/etj.30.1.7

Abstract
  In this study, the comparisons on predictions of surface finish for borosilicate glass work material based upon genetic network model by used Simulnet program. Genetic network (GN) ...  Read More ...
Effect of Adding Fine Gravel and Cement on Settlement of Sabkha Soil
Effect of Adding Fine Gravel and Cement on Settlement of Sabkha Soil

Hassan Obaid Abbas

Volume 30, Issue 1 , January 2012, Page 87-97

https://doi.org/10.30684/etj.30.1.8

Abstract
  Sabkha soil is one of the many types of collapsible soils and in turn is on of the many types of problematic soils. This soil is totally having good engineering properties when dry ...  Read More ...
The Influence of Laser Surface Hardening on Dry Sliding Wear Behaviour of Steel Ck45
The Influence of Laser Surface Hardening on Dry Sliding Wear Behaviour of Steel Ck45

Dunia Hermez Esckanda

Volume 30, Issue 1 , January 2012, Page 98-108

https://doi.org/10.30684/etj.30.1.9

Abstract
  This paper describes the effect of laser surface treatment on wearesistance of steel Ck45 .A Pulse Nd:YAG laser with wave length 1064 nm and pulse duration 100 ns was used by applying ...  Read More ...
Modified Method For Generating B-Spline Curves of Degree Three And Their Controlling
Modified Method For Generating B-Spline Curves of Degree Three And Their Controlling

Abdul Monem S. Rahma; A.Y. Abdullah; A.M. J. Abdul-Hussen

Volume 30, Issue 1 , January 2012, Page 109-127

https://doi.org/10.30684/etj.30.1.10

Abstract
  The reaction between designer, and design needs modified methods to control the design. This paper presents modified mathematical technique for controlling the generation of the 2D ...  Read More ...
Water Recycling / Reuse in Factories Case Study Soft Drink Factory
Water Recycling / Reuse in Factories Case Study Soft Drink Factory

Riyadh S. Almukhtar; Nagham A. Ageena

Volume 30, Issue 1 , January 2012, Page 128-141

https://doi.org/10.30684/etj.30.1.11

Abstract
  The aim of the present work is to study water recycling and reuse in a soft drink Factory. Water is an essential raw material in the soft drink productions with a consumption of 2.5 ...  Read More ...
Face Recognition using DWT with HMM
Face Recognition using DWT with HMM

Eyad I. Abbas; Hameed R. Farhan

Volume 30, Issue 1 , January 2012, Page 142-154

https://doi.org/10.30684/etj.30.1.12

Abstract
  This paper presents an efficient face recognition system based on Hidden Markov Model (HMM) and the simplest type “Haar” of the Discrete Wavelet Transform (DWT). The one ...  Read More ...
Correlation Study Between Point Load Test And Uniaxial Compressive Strength and Tensile Strength of Some Sedimentary Rocks In Mosul City
Correlation Study Between Point Load Test And Uniaxial Compressive Strength and Tensile Strength of Some Sedimentary Rocks In Mosul City

Thamer M. Nuri; Abdul Nasser Y. Ali; Shaima Ahmed

Volume 30, Issue 1 , January 2012, Page 155-166

https://doi.org/10.30684/etj.30.1.13

Abstract
  The point load test is used as a quick and inexpensive means of obtaining rock strength indexes when logging core samples in either a field or laboratory setting. In order to estimate ...  Read More ...
Approximate Solution for Linear Time- Delayed Improper Integral Equation Using Orthogonal Polynomials
Approximate Solution for Linear Time- Delayed Improper Integral Equation Using Orthogonal Polynomials

Hayat Adel Ali

Volume 30, Issue 1 , January 2012, Page 167-174

https://doi.org/10.30684/etj.30.1.14

Abstract
  In this paper we adopt the collocation method based on orthogonal polynomials (Laguerre, Hermite) to solve linear time delayed improper integral equation approximately. Some examples ...  Read More ...
Registration of Satellite Images by Using the Linear Transformations
Registration of Satellite Images by Using the Linear Transformations

Intehaa Abd-Allah M. Al-Juboury

Volume 30, Issue 1 , January 2012, Page 175-188

https://doi.org/10.30684/etj.30.1.15

Abstract
  The processes of rectification and registration that conducted at the satellite images of the most important steps in images interpretation and extract information for use in various ...  Read More ...