The WLAN/ WCDMA Blind Multimode Wireless Receiving System
The WLAN/ WCDMA Blind Multimode Wireless Receiving System

Sattar B. Sadkhan; Hanan A. R. Akkar; Dr.Wafaa M. R. Shakir

Volume 31, 3A , March 2013, Page 386-399

https://doi.org/10.30684/etj.31.3A.1

Abstract
  This paper proposes a new multimode wireless receiving system based on Blind Source Separation (BSS) for Orthogonal Frequency Division Multiplexing (OFDM) signal (based on Wireless ...  Read More ...
Microstructure Investigation of Using Slope Plate Casting Hypereutectic Al-Si Alloy
Microstructure Investigation of Using Slope Plate Casting Hypereutectic Al-Si Alloy

Nawal Ezat; Osama Ibrahim

Volume 31, 3A , March 2013, Page 400-415

https://doi.org/10.30684/etj.31.3A.2

Abstract
  In this work, the effects of the overheating temperature and tilt angle on the microstructure and hardness of a hypereutectic Al-23%Si alloy were investigated. Al-23%Si melt was overheated ...  Read More ...
Experimental Study of the Effect of Shot Peening on Elevated Temperature Fatigue Behavior of 7075-T651 Al. alloy
Experimental Study of the Effect of Shot Peening on Elevated Temperature Fatigue Behavior of 7075-T651 Al. alloy

Hussain J. Al-Alkawi; Shakir Sakran Hassan; Salah F. Abd-El-Jabbar

Volume 31, 3A , March 2013, Page 416-433

https://doi.org/10.30684/etj.31.3A.3

Abstract
  There is a general interest in increasing the fatigue life of materials. Shot peening is the process commonly used in order to increase the fatigue strength and life of 7075-T651. The ...  Read More ...
Estimation of Liquidus Temperature of Duplex and Austenitic Stainless Steel
Estimation of Liquidus Temperature of Duplex and Austenitic Stainless Steel

Nassier Abdul-Hussain Nassir; Riad Harwill Abdul Abas

Volume 31, 3A , March 2013, Page 434-449

https://doi.org/10.30684/etj.31.3A.4

Abstract
  Differential Thermal Analysis (DTA) and high frequency )HF( coil measurement were carried out in present work in order to measure the liquidus temperature of some austenitic and duplex ...  Read More ...
Coloring the Layer Thickness of Anodized Aluminum by Integral Color Process
Coloring the Layer Thickness of Anodized Aluminum by Integral Color Process

Talib M. Naieff Al-Bayati

Volume 31, 3A , March 2013, Page 450-469

https://doi.org/10.30684/etj.31.3A.5

Abstract
  The identification of the self coloring process in anodizing process is integral color. In this research specimens of pure aluminum (1000) and AA 5056 anodized by using Alternative ...  Read More ...
Erosion and dispersion of sandy soil with addition of fine materials
Erosion and dispersion of sandy soil with addition of fine materials

Ibrahaim M. Al-Kiki

Volume 31, 3A , March 2013, Page 470-483

https://doi.org/10.30684/etj.31.3A.6

Abstract
  For a better understanding of the performance of earth structures, it is essential to define and evaluate the variables that determine the erosion and dispersion of soils. A laboratory ...  Read More ...
Acoustic and Mechanical Properties of Polymer Composites Reinforced by Pre-Deformed Palm Fiber
Acoustic and Mechanical Properties of Polymer Composites Reinforced by Pre-Deformed Palm Fiber

Sihama I.Salih

Volume 31, 3A , March 2013, Page 484-499

https://doi.org/10.30684/etj.31.3A.7

Abstract
  This research was carried out to study the mechanical properties and thermal and acoustic insulation properties of prepared polymer composite. Petiole date palm fibers with the length ...  Read More ...
Forward Kinematics Modeling of 5 DOF Stationary Articulated Robots
Forward Kinematics Modeling of 5 DOF Stationary Articulated Robots

Tahseen Fadhil Abbas

Volume 31, 3A , March 2013, Page 500-512

https://doi.org/10.30684/etj.31.3A.8

Abstract
  This paper present a direct kinematics modeling of 5 DOF stationary articulated robot arm which is used for educational tasks, and presents an adopted modeling method to represent and ...  Read More ...
Fabrication of Ceramic-Metal Functionally Graded Materials
Fabrication of Ceramic-Metal Functionally Graded Materials

Alaa A. Atiyah; Saad. B. H. Farid; Dheya N. Abdulamer

Volume 31, 3A , March 2013, Page 513-524

https://doi.org/10.30684/etj.31.3A.9

Abstract
  High order step wise functionally graded materials Al2O3-Ti are fabricated. These materials combine the high fracture toughness of Ti phase and the relatively low density of Al2O3 and ...  Read More ...
Detection of Failures in Alternator of Diesel Generator Based on theMicrocontroller Technique
Detection of Failures in Alternator of Diesel Generator Based on theMicrocontroller Technique

Sadiq Kamel Gharkan

Volume 31, 3A , March 2013, Page 525-540

https://doi.org/10.30684/etj.31.3A.10

Abstract
  The goal of the present paper is to design and build electronic protection unit for detection of failures in alternator of diesel generator because of the many technical problems and ...  Read More ...
Pretreatment of Sawdust for Producing Sawdust Concrete
Pretreatment of Sawdust for Producing Sawdust Concrete

Haitham H. Saeed

Volume 31, 3A , March 2013, Page 541-549

https://doi.org/10.30684/etj.31.3A.11

Abstract
  Sawdust concrete has some shortcomings due to the harmful effects of some organic soluble components existing in the sawdust which affects setting and strength of sawdust concrete. ...  Read More ...
Design and Implementation of Optimal Multi-rate Digital Down Converter Using MALAB and ModelSim
Design and Implementation of Optimal Multi-rate Digital Down Converter Using MALAB and ModelSim

Hazim Salah Abdalsatar

Volume 31, 3A , March 2013, Page 550-562

https://doi.org/10.30684/etj.31.3A.12

Abstract
  In this paper, a design and implementation of a digital down converter (DDC) filter for GSM, CDMA, WCDMA is presented. A powerful system design tool, Xilinx System Generator is adopted ...  Read More ...
Numerical and Experimental Analysis of the Bending Deflection of the Composite Beam
Numerical and Experimental Analysis of the Bending Deflection of the Composite Beam

Mena Faisal Khdeer

Volume 31, 3A , March 2013, Page 563-572

https://doi.org/10.30684/etj.31.3A.13

Abstract
  This work studies the numerical and experimental bending deflection of 3-point test of the composite beam made of epoxy reinforced by glass fibers and carbon fibers at different volume ...  Read More ...
Design of On-Line Tuned Controller for Congestion Avoidance in Computer Networks
Design of On-Line Tuned Controller for Congestion Avoidance in Computer Networks

Saba T. Salim

Volume 31, 3A , March 2013, Page 573-584

https://doi.org/10.30684/etj.31.3A.14

Abstract
  Active Queue Management (AQM) applies a suitable control policy upon detecting congestion in networks. In this paper, a Proportional-Integral (PI) controller based on the optimization ...  Read More ...
The Use of Gas-to-Liquid Technology (GTL) to Produce Gasoline and Diesel Fuels
The Use of Gas-to-Liquid Technology (GTL) to Produce Gasoline and Diesel Fuels

Khalid A. Sukkar; Farah T. Jassm; Aswar A. Alwasiti; Muayad M. Hasan

Volume 31, 3A , March 2013, Page 585-598

https://doi.org/10.30684/etj.31.3A.15

Abstract
  The conversion of methane gas to synthesis gas (CO ‏ and H2) and then into clean liquid fuels via Fischer–Tropsch synthesis is investigated in the present work. The effects ...  Read More ...