Effect of Particle Size on the Physical and Mechanical Properties of Nano HA/HDPE Bio-Composite for Synthetic Bone Substitute
Effect of Particle Size on the Physical and Mechanical Properties of Nano HA/HDPE Bio-Composite for Synthetic Bone Substitute

Jenan Sattar Kashan; Jafar T.Al-Haidary; Amin D.Thamir

Volume 32, Issue 2 , February 2014, Page 286-297

https://doi.org/10.30684/etj.32.2A.1

Abstract
  The effect of using nano particle size of Hydroxyabatite to produce HA/HDPE biocomposite by Hot Pressing technique was studied by investigating the effect of particle size and production ...  Read More ...
Optimizing Overcut Parameter of Micro-Holes Machining by EDM Using Taguchi Method
Optimizing Overcut Parameter of Micro-Holes Machining by EDM Using Taguchi Method

Laith A. Mohammed; Shukry H. Aghdeab

Volume 32, Issue 2 , February 2014, Page 298-304

https://doi.org/10.30684/etj.32.2A.2

Abstract
  In this paper Taguchi method was performed to estimate the optimum overcut parameter for Electro Discharge Machining (EDM) to obtain micro-holes of copper alloy workpieces. Taguchi ...  Read More ...
OFDM Channel Estimation Based on Intelligent Systems
OFDM Channel Estimation Based on Intelligent Systems

Ismail Mohammad Jaber; Hanan A. R. Akkar; Haraa Raheim Hatem

Volume 32, Issue 2 , February 2014, Page 305-324

https://doi.org/10.30684/etj.32.2A.3

Abstract
  This work is dedicated to the study of reducing Bit Error Rate (BER) when transferring data in the system Orthogonal Frequency Division Multiplexing (OFDM) by estimating the carrier ...  Read More ...
Numerical Analysis of the Effect of Weld – Joints Preheating on Temperature Distributions In GMAW
Numerical Analysis of the Effect of Weld – Joints Preheating on Temperature Distributions In GMAW

Abbas Sh. Alwan; Jalal M. Jalil; Muna K. Abbass

Volume 32, Issue 2 , February 2014, Page 325-338

https://doi.org/10.30684/etj.32.2A.4

Abstract
  In this research , medium carbon steel type (AISI 1045 ) sheets with 8 mm thickness were welded by Gas Metal Arc Welding Process (GMAW), this study included the application of numerical ...  Read More ...
Fingerprint Recognition Using Gabor Filter with Neural Network
Fingerprint Recognition Using Gabor Filter with Neural Network

Ekbal H.Ali; Hussam A.A.Ali; Hanady a.Jaber

Volume 32, Issue 2 , February 2014, Page 339-353

https://doi.org/10.30684/etj.32.2A.5

Abstract
  The automated classification and matching of fingerprint images has been a challenging problem in pattern recognition over the past decades. This paper proposes a method to detect the ...  Read More ...
Corrosion Behavior for Al-Cu-Mg Alloy by Addition SiO2 Particles in Seawater
Corrosion Behavior for Al-Cu-Mg Alloy by Addition SiO2 Particles in Seawater

Rana A. Majed; Mervit Mahdi; Hanaa A. Al-Kaisy; Saja A. Abdul Maged

Volume 32, Issue 2 , February 2014, Page 354-364

https://doi.org/10.30684/etj.32.2A.6

Abstract
  This work involves studying the effect of adding SiO2 particles on corrosion behavior of Al-Cu-Mg alloy in 3.5% NaCl solution at room temperature using polarization method at scan rate ...  Read More ...
Fe Analysis of Residual Stresses Induced by Spot Welding of Stainless Steel Type Aisi 316
Fe Analysis of Residual Stresses Induced by Spot Welding of Stainless Steel Type Aisi 316

Ahmed N. Al-Khazraji; Samir A. Al-Rabii; Ali Hussein F. Al-Jelehawy

Volume 32, Issue 2 , February 2014, Page 365-384

https://doi.org/10.30684/etj.32.2A.7

Abstract
  Specimens of the as-received stainless steel type 316, according to AISI standard, in form of sheet with 1.5 mm thickness were first spot welded and thenshot peened to obtain the influence ...  Read More ...
Edge Detection Using Scaled Conjugate Gradient Algorithm in Back propagation Neural Network
Edge Detection Using Scaled Conjugate Gradient Algorithm in Back propagation Neural Network

Walaa M. Khalaf; Mohammed Ali Tawfeeq; Kadhum Al-Majdi

Volume 32, Issue 2 , February 2014, Page 385-395

https://doi.org/10.30684/etj.32.2A.8

Abstract
  This paper introduces a proposed method based on a backpropagation artificial neural network using Scaled Conjugate Gradient (SCG) training algorithm so as to gain the edges of any ...  Read More ...
Design Aspects and Sensitivity Analysis of Tenth Order Active Bandpass Filter
Design Aspects and Sensitivity Analysis of Tenth Order Active Bandpass Filter

Muneer A. Hashem; Wail I. Khalil; Raad B. Raheem

Volume 32, Issue 2 , February 2014, Page 396-413

https://doi.org/10.30684/etj.32.2A.9

Abstract
  The design and sensitivity aspects of five stages tenth order active bandpass filter suitable for signal processing in electronic circuits are introduced. Simulation process performed ...  Read More ...
Design and Simulation of 11/0.4 kV Distribution Transformer Using ANSYS
Design and Simulation of 11/0.4 kV Distribution Transformer Using ANSYS

Thamir M. Abdul Wahhab; Methaq Talib Jabbar

Volume 32, Issue 2 , February 2014, Page 414-438

https://doi.org/10.30684/etj.32.2A.10

Abstract
  This work presents a Finite Element Method (FEM) modeling of a 3-phase, 11/0.4 kV, 50 Hz, oil immersed, core (stack) type distribution transformer. In this work The ANSYS package is ...  Read More ...
Study Fatigue Behavior of Friction Stir Welded Joints for Dissimilar Aluminum Alloys (2024 -T3 and 7020 -T6)
Study Fatigue Behavior of Friction Stir Welded Joints for Dissimilar Aluminum Alloys (2024 -T3 and 7020 -T6)

Muna K. Abbass; Ali H. Ataiwi; Ahmed Ameed

Volume 32, Issue 2 , February 2014, Page 439-452

https://doi.org/10.30684/etj.32.2A.11

Abstract
  The aim of the present work is to investigate the fatigue behavior of friction stir welded joints for dissimilar aluminum alloys (2024 -T3 and 7020-T6). Friction stir welding (FSW) ...  Read More ...
Power Management of LED Street Lighting System Based on FPGA
Power Management of LED Street Lighting System Based on FPGA

Hanan A.R Akar; Naseer K. Kasim; Noor A. Jasim

Volume 32, Issue 2 , February 2014, Page 453-464

https://doi.org/10.30684/etj.32.2A.12

Abstract
  Light Emitting Diode (LED) lamp is new lighting technology used over the world, its high efficiency, low power consumption, dimming capability, long lifetime, environmental friendly ...  Read More ...
Dynamics and Control of Heat Exchanger Networks
Dynamics and Control of Heat Exchanger Networks

Duraid Fadhil Ahmed; Cizan A. Ali

Volume 32, Issue 2 , February 2014, Page 465-480

https://doi.org/10.30684/etj.32.2A.13

Abstract
  In this paper dynamics of plate heat exchanger networks is given by combining dynamic models of plate heat exchangers in the network. A mathematical model for plate heat exchanger is ...  Read More ...
Suboptimal Resource Allocation for MIMO-FDMA Systems
Suboptimal Resource Allocation for MIMO-FDMA Systems

Salah AwadAliesawi

Volume 32, Issue 2 , February 2014, Page 481-493

https://doi.org/10.30684/etj.32.2A.14

Abstract
  In this paper, a pragmatic resource allocation algorithm for single-cell downlink multi input-multi-output (MIMO) based orthogonal frequency division multiple access(OFDMA) systems ...  Read More ...
Numerical Investigation of Energy Storage in Packed Bed of Cylindrical Capsules of PCM
Numerical Investigation of Energy Storage in Packed Bed of Cylindrical Capsules of PCM

Ahmed K. Alshara; Mohammed Kh. Kadhim

Volume 32, Issue 2 , February 2014, Page 494-510

https://doi.org/10.30684/etj.32.2A.15

Abstract
  A theoretical study of storage thermal energy using capsulated cylinders filled with phase change material PCM is performed. These cylinders are arranged in-line in the direction of ...  Read More ...
Punching Shear Resistance of Reinforced Concrete Flat Plate Slabs Strengthened with CFRP
Punching Shear Resistance of Reinforced Concrete Flat Plate Slabs Strengthened with CFRP

Eyad K. Sayhood; Mohammed J.Hamood; Aseel A. Abdul Ridha

Volume 32, Issue 2 , February 2014, Page 511-529

https://doi.org/10.30684/etj.32.2A.16

Abstract
  The purpose of this study is to present a model suitable for analyzing reinforced concrete (RC) slabs strengthened with Carbon fiber reinforced polymer (CFRP) failing in punching shear ...  Read More ...
Influence of Adding Different Amounts of Super Plasticizers on the Mechanical Properties of Concrete (Impact and Abrasion)
Influence of Adding Different Amounts of Super Plasticizers on the Mechanical Properties of Concrete (Impact and Abrasion)

Ali Hussain Ali; Mohammed Hazim Yasin

Volume 32, Issue 2 , February 2014, Page 530-550

https://doi.org/10.30684/etj.32.2A.17

Abstract
  Trial laboratory batches were used to study the effect of adding different amounts of superp lasticizers on the mechanical properties (Compressive strength, abrasion resistance, and ...  Read More ...
Evaluation of Mechanical Properties of Roller Compacted Concrete
Evaluation of Mechanical Properties of Roller Compacted Concrete

Mohamed Abdul-Razzaq Ahmed; Hisham K.Ahmed

Volume 32, Issue 2 , February 2014, Page 551-572

https://doi.org/10.30684/etj.32.2A.18

Abstract
  The main aim of this research is to study the effect of using the additive materials (hydrated lime and metakaolin) on the behavior of roller compacted concrete. The experimental work ...  Read More ...
In-Between Space Iin Architecture A Study in the Nature of Active In-Between Space
In-Between Space Iin Architecture A Study in the Nature of Active In-Between Space

Asmaa M.H.Al-Muqaram; Jinan Hassan Al- Anbaki

Volume 32, Issue 2 , February 2014, Page 19-43

https://doi.org/10.30684/etj.32.2A.19

Abstract
  The in-between concept has emerged as one of the basic concepts in the architecture which was based at a bilateral relationship between two contradictory objects. Some studies focused ...  Read More ...
Study The Effect of Rotational Speed and Pouring Temperature on the Distribution of Si in Functionally Graded Material Produced by Centrifugal Casting
Study The Effect of Rotational Speed and Pouring Temperature on the Distribution of Si in Functionally Graded Material Produced by Centrifugal Casting

Nawal Ezzat Abdul-Latiff; Rabiha Salih Yaseen; Abdul-jabbar Saad Jomah

Volume 32, Issue 2 , February 2014, Page 44-61

https://doi.org/10.30684/etj.32.2A.20

Abstract
  The aim of this study was to prepare a functionally graded material using centrifugal casting process and study the effect of process parameters (the rotational speed of casting mold ...  Read More ...