Superiority The Use of WiMAX System on Wi-Fi System in The Iraqi Topographic
Superiority The Use of WiMAX System on Wi-Fi System in The Iraqi Topographic

Riyadh Mitieb Mahmood; Mohamed Hasan Darwish; Izz Kadhum Abboud

Volume 34, 8A , August 2016, Page 219-231

https://doi.org/10.30684/etj.34.8A.20

Abstract
  The high prevalence of the Internet services in Iraq have led to the emergence of tight and crowded towers Wi-Fi (Wireless Fidelity) services in residential neighborhoods because of ...  Read More ...
Fungi Colonies Effect on Fatigue Behavior of 7075Al Alloy
Fungi Colonies Effect on Fatigue Behavior of 7075Al Alloy

Hussain J. Al-Alkawi; Amer Hameed Majeed; Fatima Ali Hussain

Volume 34, 8A , August 2016, Page 1483-1490

https://doi.org/10.30684/etj.34.8A.1

Abstract
  The effect of fungi colonies on fatigue of 7075 aluminum alloys was studied for specimens corroded at different media. 57 specimensof aluminum alloys were submerged in Shat-Arab water ...  Read More ...
Synthesis of Mullite Powder from Aluminum Nitrate and Precipitated Silica using Sol-Gel Process
Synthesis of Mullite Powder from Aluminum Nitrate and Precipitated Silica using Sol-Gel Process

Hussein Alaa Jaber

Volume 34, 8A , August 2016, Page 1491-1498

https://doi.org/10.30684/etj.34.8A.2

Abstract
  In this work, a new route for possibility synthesizing high purity submicron size mullite (3A12O3.2SiO2) powder at relatively low temperature. Mullite precursor has been prepared from ...  Read More ...
Finite Element Analysis of Suppression the Vibration of Dish Using Closed Loop Control System
Finite Element Analysis of Suppression the Vibration of Dish Using Closed Loop Control System

Nahedh Mahmood Ali

Volume 34, 8A , August 2016, Page 1499-1513

https://doi.org/10.30684/etj.34.8A.3

Abstract
  A closed loop simulation is used for minimizing of undemanding vibration caused in the dish system. The finite element method is used to model the closed loop control via ANSYS- APDL. ...  Read More ...
Modeling of a Greater-Zab River Watershed Using Arc SWAT for Stream Flow and Hydrologic Budget
Modeling of a Greater-Zab River Watershed Using Arc SWAT for Stream Flow and Hydrologic Budget

Thair S. K

Volume 34, 8A , August 2016, Page 1514-1529

https://doi.org/10.30684/etj.34.8A.4

Abstract
  Soil Water Assessment Tool (ArcSWAT2009) model is applied on the Greater-ZabRiver catchment at north of Iraq. The model was calibrated from 1993-2002 and validated from 2003-2013.The ...  Read More ...
Optimal Robust Controller Design for Heartbeat System
Optimal Robust Controller Design for Heartbeat System

Amjad J. Humaidi; Kadhim Yakoob Yousif; Ruaa Muayad AL Wardie

Volume 34, 8A , August 2016, Page 1530-1537

https://doi.org/10.30684/etj.34.8A.5

Abstract
  In the present work, an optimal control approach is suggested to design a robust controller for the heart system. The work objective is to generate artificial or synthetic optimal Electrocardiogram ...  Read More ...
Predicting the Delivery Time of Public School Building Projects Using Nonlinear Regression
Predicting the Delivery Time of Public School Building Projects Using Nonlinear Regression

Zeyad S. M. Khaled; Raid S. Abid Ali; Mussab Faleh Hassan

Volume 34, 8A , August 2016, Page 1538-1548

https://doi.org/10.30684/etj.34.8A.6

Abstract
  The delay in delivering public school building projects in Iraq is one of the major problems that face the construction of new school buildings. In order to enable the concerned governmental ...  Read More ...
Influence of Uniaxial Loading on the Strength of Slender Columns
Influence of Uniaxial Loading on the Strength of Slender Columns

Alyaa Hussein Mohammed AL-Najafi

Volume 34, 8A , August 2016, Page 1549-1563

https://doi.org/10.30684/etj.34.8A.7

Abstract
  A column is said to be slender if its cross-sectional dimensions are small compared with its length, and its strength is reduced by second-order deformations. Several methods are available ...  Read More ...
Fuzzy-TOPSIS Model for Optimization Hot Corrosion Resistance of Inconel718 Coated by Yttrium-doped Aluminizing-Siliconizing Process
Fuzzy-TOPSIS Model for Optimization Hot Corrosion Resistance of Inconel718 Coated by Yttrium-doped Aluminizing-Siliconizing Process

Abbas Khammas Hussein; Abdulmajeed Majid Hameed; Neamah Hashim Shareef

Volume 34, 8A , August 2016, Page 1564-1574

https://doi.org/10.30684/etj.34.8A.8

Abstract
  The objective of this study is to find out the optimum hot corrosion resistance and hardness for Inconel718 coated by simultaneous yttrium-doped aluminizing-siliconizingprocess. The ...  Read More ...
On-Line Tuning Sliding Mode Controller Design for Nonlinear Inverted Pendulum System based on Bees Algorithm
On-Line Tuning Sliding Mode Controller Design for Nonlinear Inverted Pendulum System based on Bees Algorithm

Khulood E. Dagher; Ahmed Ibraheem Abdulkareem

Volume 34, 8A , August 2016, Page 1575-1587

https://doi.org/10.30684/etj.34.8A.9

Abstract
  This paper proposes a modified swing control for a nonlinear inverted pendulum system by utilizing the sliding mode controller based on the on-line tuningBeesalgorithm as speed of optimization ...  Read More ...
Experimental Study of Heat Transfer Parameters of Impingement Heating System Represented by Conductive Target Plate of Resistive film
Experimental Study of Heat Transfer Parameters of Impingement Heating System Represented by Conductive Target Plate of Resistive film

Assim H. Yousif; Amer M. Al Dabagh; Salah H. Abid Aun

Volume 34, 8A , August 2016, Page 1588-1604

https://doi.org/10.30684/etj.34.8A.10

Abstract
  The current experimental study focuses on the heat transfer characteristics and pressure losses for impingement systemwhich is used in cooling the liner of gas turbine combustor. Recent ...  Read More ...
Topographic Survey with Analytical Close Range Photogrammetry
Topographic Survey with Analytical Close Range Photogrammetry

Abbas Zedan Khalaf; Sally Salwan

Volume 34, 8A , August 2016, Page 1605-1614

https://doi.org/10.30684/etj.34.8A.11

Abstract
  Topographic survey uses to determine the relative locations of points (coordinates) on the earth's surface by measuring horizontal distances, differences in elevations and directions. ...  Read More ...
Bearing Capacity of Closed and Open Ended Pipe Piles in Clayey Soil
Bearing Capacity of Closed and Open Ended Pipe Piles in Clayey Soil

Ban S. Hussein; Falah H. Rahil; Mohammed A. Mahmoud

Volume 34, 8A , August 2016, Page 1615-1623

https://doi.org/10.30684/etj.34.8A.12

Abstract
  This paper investigates the impact of close and open ended condition on the capacity of pipe piles installed in medium clayey soil using pressed or jacked and hammered techniques and ...  Read More ...
Heat and Chemical Treatments for Sawdust/UPE Composites
Heat and Chemical Treatments for Sawdust/UPE Composites

Mohammed H. Alzuhairi; Kadhum M. Shabbeb; Sally A. Hussain Alsaedy

Volume 34, 8A , August 2016, Page 1624-1635

https://doi.org/10.30684/etj.34.8A.13

Abstract
  Sawdust filler taken from White Cham (a type of wood) were mixed with unsaturated polyester (UPE) at 20, 30 and 40% volume fractions. the mechanical and physical properties of the composites ...  Read More ...
Electroflotocoagulation of Emulsified Cooling Oils as a Method of Pollution Control
Electroflotocoagulation of Emulsified Cooling Oils as a Method of Pollution Control

Thamer J. Mohammed; Dhia AL-DeenMohammed; Abbas A.K.AL-Rikaby

Volume 34, 8A , August 2016, Page 1636-1650

https://doi.org/10.30684/etj.34.8A.14

Abstract
  This research includes the removal of pollution produced from used coolant emulsion oils especially soluble oil (7201). In many types of liquid effluents, oil – water emulsions ...  Read More ...
PSO-Based EKF Estimator Design for PMBLDC Motor
PSO-Based EKF Estimator Design for PMBLDC Motor

Ahmed Hammood Abed; Mohammed Moanes E. Ali

Volume 34, 8A , August 2016, Page 1651-1665

https://doi.org/10.30684/etj.34.8A.15

Abstract
  The estimation of motor state variables is an important criterion in the drive performance, especially for high accuracy required, for that reason it’s-necessary to estimate rotor-position-continuously ...  Read More ...
Prediction of Contact Angle for Sintered Alloy for Solid Freeform Fabrication
Prediction of Contact Angle for Sintered Alloy for Solid Freeform Fabrication

Falih Hamza Edan

Volume 34, 8A , August 2016, Page 1666-1672

https://doi.org/10.30684/etj.34.8A.16

Abstract
  The present study aimed to predict theoretically the contact angle between liquid copper dropson well-polished carbons steel. The theoretically established model was relied on standard ...  Read More ...
Shear Lag in Reinforced Concrete T-Beams with Web Openings
Shear Lag in Reinforced Concrete T-Beams with Web Openings

Eyad Kadhum Sayhood; Nisreen Saleh; Ahmed S.Hanon

Volume 34, 8A , August 2016, Page 1673-1687

https://doi.org/10.30684/etj.34.8A.17

Abstract
  In this paper, an extensive study is carried out 18 beams on the behavior of T-beams (8 with web openings, 10 without openings). Compressive strains distribution at the flanged are ...  Read More ...
Effect of Using Plastic and Rubber Wastes as Fine Aggregate on Some Properties of Cement Mortar
Effect of Using Plastic and Rubber Wastes as Fine Aggregate on Some Properties of Cement Mortar

Basil S. Al-Shathr; Iqbal N. Gorgis; Rafid F. Motlog

Volume 34, 8A , August 2016, Page 1688-1699

https://doi.org/10.30684/etj.34.8A.18

Abstract
  This research describes the production of lightweight cement mortar using four types of fine aggregates including chopped rubber tires, chopped plastic wastes, a mixture from the previous ...  Read More ...
Human Thermal Comfort Evaluation in Open Spaces of Two Multi-Story Residential Complexes Having Different Design Settings, Duhok-Iraq
Human Thermal Comfort Evaluation in Open Spaces of Two Multi-Story Residential Complexes Having Different Design Settings, Duhok-Iraq

Turki Hasan Ali

Volume 34, 8A , August 2016, Page 1700-1715

https://doi.org/10.30684/etj.34.8A.19

Abstract
  To achieve a sustainable residential area, open spaces must promote comfort and invite people to stay outdoors and prolonging their stays, which will contribute to a more lively residential ...  Read More ...