Appraisal Criteria-Space in Some Residential Urban Areas for Al-Kut City
Appraisal Criteria-Space in Some Residential Urban Areas for Al-Kut City

Riyad Al-Anbari

Volume 32, Issue 4 , May 2014, Page 800-811

https://doi.org/10.30684/etj.32.4A.1

Abstract
  In this paper, appraisal for residential environment type in Al-Kut city has been done by regular process for evaluation of 198 random samples from dwelling units have been selected ...  Read More ...
The New Ternary Ceramics of MAX Phases, the Solution of All Obstacles (Theoretical and Experimental Review)
The New Ternary Ceramics of MAX Phases, the Solution of All Obstacles (Theoretical and Experimental Review)

Ahmed M. H. Abdulkadhim Al-Ghaban

Volume 32, Issue 4 , May 2014, Page 812-821

https://doi.org/10.30684/etj.32.4A.2

Abstract
  In the recent years the new ternary carbides or nitrides materials with the formula of Mn+1AXn where M is a transition metal, A is an element from group IIIA or IVA, X is either Carbon ...  Read More ...
Assessing the Dynamic Behavior of Asphalt Stabilized Gypseous Soil
Assessing the Dynamic Behavior of Asphalt Stabilized Gypseous Soil

Mahmood D. Ahmed

Volume 32, Issue 4 , May 2014, Page 822-841

https://doi.org/10.30684/etj.32.4A.3

Abstract
  The study presents the test results of stabilizing gypseous soil embankment obtained from Al- Faluja University Campus at Al-Ramady province. The laboratory investigation was divided ...  Read More ...
Blind Detection Method of MIMO – Space Time Coded Wireless Systems Based on ICA
Blind Detection Method of MIMO – Space Time Coded Wireless Systems Based on ICA

Wafaa Mohammed R. Shakir AL-Dahan

Volume 32, Issue 4 , May 2014, Page 842-854

https://doi.org/10.30684/etj.32.4A.4

Abstract
  This paper presents a proposed blind detection method for Multiple Input Multiple Output-Space Time Coded (MIMO-STC) wireless systems based on Independent Component Analysis (ICA). ...  Read More ...
Evalution the Load Distribution Factors for Horizontally Curved Composite Concrete-Steel Girder Bridges
Evalution the Load Distribution Factors for Horizontally Curved Composite Concrete-Steel Girder Bridges

Eyad K. Say hood; Nisreen S. Mohammed; Ibtihal Fadhil Ali

Volume 32, Issue 4 , May 2014, Page 855-872

https://doi.org/10.30684/etj.32.4A.5

Abstract
  In this research paper, a 3-D finite element model was used for the analysis of curved concrete slab on steel girder bridges. A parametric study was carried out to calculate the load ...  Read More ...
Time Domain Simulation of Wind Shear and Tower Shadow in Wind Turbines
Time Domain Simulation of Wind Shear and Tower Shadow in Wind Turbines

Farouk O. Hamdoon; Mohammed I. Abu-Tabikh; Mauwafak A. Tawfik

Volume 32, Issue 4 , May 2014, Page 873-885

https://doi.org/10.30684/etj.32.4A.6

Abstract
  This paper presents an aerodynamic analysis of a three-bladed wind turbine using unsteady Blade Element Momentum (BEM) method. A MATLAB code has been written to perform the analysis ...  Read More ...
Evaluation of Flow Parameters around Tracking Solar Collectors with Different Collector Geometry and Different Operation Conditions
Evaluation of Flow Parameters around Tracking Solar Collectors with Different Collector Geometry and Different Operation Conditions

Khalid Hameed Hussein

Volume 32, Issue 4 , May 2014, Page 886-907

https://doi.org/10.30684/etj.32.4A.7

Abstract
  In the current study, the flow parameters around the tracking solar collectors were evaluated. Different site conditions with different tracking solar collector's geometry are combined ...  Read More ...
Durability of some Weak Rocks Selected from Nineveh
Durability of some Weak Rocks Selected from Nineveh

Mohammed K. Faris; Amina. A. Khalil; Suhail I. A. Khattab

Volume 32, Issue 4 , May 2014, Page 908-921

https://doi.org/10.30684/etj.32.4A.8

Abstract
  Some rocks are naturally weak, or it becomes weak due to weathering. Durability of weak rocks is one of the most important engineering properties to be evaluated. This study aims to ...  Read More ...
Study the Effect of Surface and Internal Heat Treatment on Mechanical Properties of C40 Steel Alloy
Study the Effect of Surface and Internal Heat Treatment on Mechanical Properties of C40 Steel Alloy

lamyaa kalel; Ahlam Abd Alamer Al khafaji; Sabah N. Mahmood

Volume 32, Issue 4 , May 2014, Page 922-931

https://doi.org/10.30684/etj.32.4A.9

Abstract
  The research aims to study the effect of quenching, tempering and laser surface treatment on the mechanical properties of C40 steel. The steel specimens were heated to a temperature ...  Read More ...
Effect of Alloying Elements (Mo and Al) on Biomaterials  Ti-Ta Shape Memory Alloys
Effect of Alloying Elements (Mo and Al) on Biomaterials Ti-Ta Shape Memory Alloys

Fatima J. Al-Hassani; Emad S. Al-Hassani; Sahib M. Al-Saffar

Volume 32, Issue 4 , May 2014, Page 932-951

https://doi.org/10.30684/etj.32.4A.10

Abstract
  Titanium-Tantalum shape memory materials have widespread potential in biomedical applications In this research the alloy of (Ti-Ta) has been prepared by powder metallurgy technique ...  Read More ...
Improvement of Iraqi Red Kaolin as a Refractory Material
Improvement of Iraqi Red Kaolin as a Refractory Material

Amel S. Merzah; Younis Muhsin; Yasamin k. Mahmood

Volume 32, Issue 4 , May 2014, Page 952-959

https://doi.org/10.30684/etj.32.4A.11

Abstract
  In this work refractory material was prepared from Iraqi red kaolin with the addition of different proportions of silica and alumina (10, 15, 20 %) for each one and the red kaolin 70%. ...  Read More ...
Singularity Analysis of Parallel Robot with Six Degrees-Of-Freedom of Six Legs
Singularity Analysis of Parallel Robot with Six Degrees-Of-Freedom of Six Legs

Hassan M. Alwan; Hayder Sabah Ahmed

Volume 32, Issue 4 , May 2014, Page 960-972

https://doi.org/10.30684/etj.32.4A.12

Abstract
  This paper suggests a mathematical solution to parallel manipulator with six degrees of freedom and follows the movement on a specific track to evaluate the singularity position. Mathematical ...  Read More ...
Design of a Nonlinear PID Neural Trajectory Tracking Controller for Mobile Robot based on Optimization Algorithm
Design of a Nonlinear PID Neural Trajectory Tracking Controller for Mobile Robot based on Optimization Algorithm

Khulood E. Dagher; Ahmed Al-Araji

Volume 32, Issue 4 , May 2014, Page 973-985

https://doi.org/10.30684/etj.32.4A.13

Abstract
  This paper presents a trajectory tracking control algorithm for a non-holonomic wheeled mobile robot using optimization technique based nonlinear PID neural controller in order to follow ...  Read More ...
Best Path Planning Algorithm for Mobile Robot Based on Modified Genetic Algorithm
Best Path Planning Algorithm for Mobile Robot Based on Modified Genetic Algorithm

Nadia Adnan Shiltagh; Kais Said Ismail; Zeyad Qasim Habeeb

Volume 32, Issue 4 , May 2014, Page 986-1006

https://doi.org/10.30684/etj.32.4A.14

Abstract
  In this paper a best path planning for mobile robot based on modified Genetic algorithm is introduced. The proposed algorithm read the map of the environment which expressed by grid ...  Read More ...
Behavior of Plate on Elastic Foundation under Impact Load
Behavior of Plate on Elastic Foundation under Impact Load

Mohammed Y. Fattah; Mohammed J. Hamood; Sura A. Abbas

Volume 32, Issue 4 , May 2014, Page 1007-1027

https://doi.org/10.30684/etj.32.4A.15

Abstract
  In this study, nonlinear three-dimensional finite element analysis has been used to conduct a numerical investigation of the effect of applied impact load on the foundation based on ...  Read More ...
Single Sand Column Stabilized by Lime Embedded in Soft Soil
Single Sand Column Stabilized by Lime Embedded in Soft Soil

Ahmed S.A. Al-Gharbawi; Hasan H. Joni; Namir K.S. Al-Saoudi

Volume 32, Issue 4 , May 2014, Page 1028-1037

https://doi.org/10.30684/etj.32.4A.16

Abstract
  The behavior of isolated sand columns stabilized with lime and embedded in bed of soft soil of untrained shear strength cu between 16 – 19 kPa, is investigated. Holes in the form ...  Read More ...
Effect of Holes Arrangement on Effusion Cooling Performance
Effect of Holes Arrangement on Effusion Cooling Performance

Muwafag Sh. Alwan; Reyadh Ch. Al-Zachary

Volume 32, Issue 4 , May 2014, Page 1038-1052

https://doi.org/10.30684/etj.32.4A.17

Abstract
  The present work concentrates on the experimental investigation of effusion cooling performance for different whole pitch ratios. The film cooling effectiveness and local heat transfer ...  Read More ...
The Performance of Oxidation Pond for Wastewater Treatment in Rural Areas a Case Study “Al-Dewaniyah Province
The Performance of Oxidation Pond for Wastewater Treatment in Rural Areas a Case Study “Al-Dewaniyah Province"

Mohammed Ali I.Al-Hashimi; Hayder TaleeHussan

Volume 32, Issue 4 , May 2014, Page 1053-1070

https://doi.org/10.30684/etj.32.4A.18

Abstract
  This research is concerned with study and checks the suitability of waste oxidation ponds (WOP) for treating wastewater in Al-Dewaniyah province by taking a sample of community of 10000 ...  Read More ...
Studying Abrasive Flow Machining Conditions by Using Taguchi Method
Studying Abrasive Flow Machining Conditions by Using Taguchi Method

Abbas F. Ibrahim; Saad K.Shather; Wissam K. Hamdan

Volume 32, Issue 4 , May 2014, Page 1071-1082

https://doi.org/10.30684/etj.32.4A.19

Abstract
  Abrasive Flow Machining (AFM) process can not only promote product’s inner surface quality but also economize the labor cost. However, the issue of inner surface quality includes ...  Read More ...
Studying the Process of Rising the Performance of the Cooling System by Using the Two Liquids R-12 &R-134a
Studying the Process of Rising the Performance of the Cooling System by Using the Two Liquids R-12 &R-134a

Ayad Kadhim Khlief

Volume 32, Issue 4 , May 2014, Page 148-164

https://doi.org/10.30684/etj.32.4A.20

Abstract
  In this research, has been studied the possibilities of replacing the refrigerant R-12 by R-134a and compare their thermal performance when working with the following variables (air ...  Read More ...