Studying Mechanical Properties For Polymer Matrix Composite Material Reinforced By Fibers And Particles
Studying Mechanical Properties For Polymer Matrix Composite Material Reinforced By Fibers And Particles
Volume 28, Issue 4 , February 2010, Page 81-93

https://doi.org/10.30684/etj.28.4.18

Abstract
  The work focuses on the preparation of hybrid polymer matrix compositematerials prepared from the unsaturated polyester resin as matrix reinforced by wovenglass fiber kind ( E-glass ...  Read More ...
Study of The Effect of Carbon Contents on The Corrosion Rate of Carbon Steels
Study of The Effect of Carbon Contents on The Corrosion Rate of Carbon Steels
Volume 28, Issue 4 , February 2010, Page 94-107

https://doi.org/10.30684/etj.28.4.19

Abstract
  The Plain-Carbon steel are considered as one of the most commonmetallic materials used in engineering and industrial applications due to its abilityin altering the micro-structures ...  Read More ...
Study of Polymer Quenchants Effect on Some Properties of Alloyed Tool Steel (X155)
Study of Polymer Quenchants Effect on Some Properties of Alloyed Tool Steel (X155)
Volume 28, Issue 4 , February 2010, Page 108-121

https://doi.org/10.30684/etj.28.4.20

Abstract
  This study is concerned with the effect of polymer quenching on someproperties of an alloyed tool steel (X155). Three different operations of heat treatmenthave been done including ...  Read More ...
Analytic Technique For Active Mode-Locked Fiber Lasers
Analytic Technique For Active Mode-Locked Fiber Lasers

Mohammed S. Mehde; Adawiya J. Haider; Bushra R. Mahdi

Volume 28, Issue 4 , February 2010, Page 630-638

https://doi.org/10.30684/etj.28.4.1

Abstract
  In this work, Aِmplitude modulation mode-locked fiber laser isstudied,by using Ytterbium Doped Fiber Laser, single mode fiber,operating with 1055 nm wavelength with 976 nm optical ...  Read More ...
Buoyancy Heat Transfer In Staggered Dividing Square Enclosure
Buoyancy Heat Transfer In Staggered Dividing Square Enclosure

Ali L. Ekaid; Ayad F. Hameed; Ahmad F. Mehde

Volume 28, Issue 4 , February 2010, Page 639-663

https://doi.org/10.30684/etj.28.4.2

Abstract
  In this research, the Buoyancy heat transfer and flow patterns in a partiallydivided square enclosure with staggered partitions have been studied numerically.The partitions were distributed ...  Read More ...
New Proposed Algorithm To Conceals Error In Wireless Image Transmission Based on Framelet Transform
New Proposed Algorithm To Conceals Error In Wireless Image Transmission Based on Framelet Transform

Taha T. Abdul Qader; Atheer A. Sabri

Volume 28, Issue 4 , February 2010, Page 664-675

https://doi.org/10.30684/etj.28.4.3

Abstract
  In this paper, we present a new proposed error concealment algorithm toimprove the image quality degraded during its transmission over wireless channel.Different error concealment strategies ...  Read More ...
On-Chip RF Transformer Performance Improvement Technique
On-Chip RF Transformer Performance Improvement Technique

Ahmed Saadoon Ezzulddin; Mohammed Hussain Ali; Mutaz Shunasi Abdulwahab

Volume 28, Issue 4 , February 2010, Page 676-685

https://doi.org/10.30684/etj.28.4.4

Abstract
  In this work, a proposed on-chip radio-frequency (RF) transformer design andlayout technique is presented to achieve high magnetic coupling coefficient andlow insertion loss by segmenting ...  Read More ...
Integrating Neural Network With Genetic Algorithms For The Classification Plant Disease
Integrating Neural Network With Genetic Algorithms For The Classification Plant Disease

Alia Karim Abdul Hassan; Sarah Sadoon Jasim

Volume 28, Issue 4 , February 2010, Page 686-701

https://doi.org/10.30684/etj.28.4.5

Abstract
  In this work Aِِrtificial Neural Network (ANN) is used as a classifier capable ofrecognizing the most important features of the plant disease, with minimum errorvalue. Genetic algorithm ...  Read More ...
Investigation Of Heat Transfer Phenomena And Natural Flow Behavior Around A Heated Square Cylinder Placed In A Cooled Elliptical Enclosure
Investigation Of Heat Transfer Phenomena And Natural Flow Behavior Around A Heated Square Cylinder Placed In A Cooled Elliptical Enclosure

Sattar J. Habeeb

Volume 28, Issue 4 , February 2010, Page 702-722

https://doi.org/https://doi.org/10.30684/etj.28.4.6

Abstract
  In this paper, a numerical study of the effect of a hot square cylinder placed on acooled elliptical enclosure of a laminar natural convection was carried out. This problemis solved ...  Read More ...
Transparent Oxide MgO Thin Films Prepanred By Reactive Pused Laser Deposition
Transparent Oxide MgO Thin Films Prepanred By Reactive Pused Laser Deposition

Evan T. Salem; Farhan A.Mohamed

Volume 28, Issue 4 , February 2010, Page 723-729

https://doi.org/10.30684/etj.28.4.7

Abstract
  Transparent dielectric thin films of MgO have been deposited on glasssubstrates at different oxygen pressure between (50-300) mbar using a pulsed laserdeposition technique to ablation ...  Read More ...
Studying The Effect of Copper And Zinc Ions on The Corrosion Rate of Carbon Steel
Studying The Effect of Copper And Zinc Ions on The Corrosion Rate of Carbon Steel

Nervana A. Abd Alameer

Volume 28, Issue 4 , February 2010, Page 730-742

https://doi.org/10.30684/etj.28.4.8

Abstract
  An experimental work was performed to study the effect of Zn, Cu ions onthe corrosion rate of carbon steel in distilled and tap water solution containing, 25& 50 ppm concentration ...  Read More ...
The Effect Of Constraint Length And Interleaver On The Performance Of Turbo Code
The Effect Of Constraint Length And Interleaver On The Performance Of Turbo Code

Suad A. Essa; Eman F. Khalil; Najat Sh. Jasim

Volume 28, Issue 4 , February 2010, Page 743-758

https://doi.org/10.30684/etj.28.4.9

Abstract
  This paper presents a class derived from convolutional code called turbo code. Theperformance of turbo code is investigated through examining the effect of different constraintlength, ...  Read More ...
Prediction of Surface Roughness In Ceramic Cutting Tool Using SPSS Model
Prediction of Surface Roughness In Ceramic Cutting Tool Using SPSS Model

Saad Kariem Shather

Volume 28, Issue 4 , February 2010, Page 759-767

https://doi.org/10.30684/etj.28.4.10

Abstract
  The aim of this study is to predict surface roughness of workpiece whichmachined by ceramic cutting tool using SPSS program and compare the resultswith the experimental values which ...  Read More ...
Effect of Different Chemical Solution On Tensile Strength of Polymer Composite
Effect of Different Chemical Solution On Tensile Strength of Polymer Composite

Emad S. AL-Hassani; Sheelan R. Areef

Volume 28, Issue 4 , February 2010, Page 768-774

https://doi.org/10.30684/etj.28.4.11

Abstract
  Hand lay- up technique was used to prepare sheets of epoxy composites reinforcedwith woven roven (0ο-90ο) glass fiber in weight fraction (50%).The sheets were left tosolidify ...  Read More ...
Simple Adaptive Tracking Approach For Nonmaneuvering And Maneuvering Target
Simple Adaptive Tracking Approach For Nonmaneuvering And Maneuvering Target

Yousra Abd Mohammed

Volume 28, Issue 4 , February 2010, Page 775-784

https://doi.org/10.30684/etj.28.4.12

Abstract
  This article suggest a simple adaptive approach for tracking thenonmaneuvering and maneuvering target, this tracking approach uses two states percoordinate model to describe the target ...  Read More ...
A Study on The Effect Of Temperature on The Treatment of Industrial Wastewater Using Chlorella Vulgaris Alga
A Study on The Effect Of Temperature on The Treatment of Industrial Wastewater Using Chlorella Vulgaris Alga

Rana Abbas Azeez

Volume 28, Issue 4 , February 2010, Page 785-792

https://doi.org/10.30684/etj.28.4.13

Abstract
  Laboratory experiments were performed to study nutrient uptake by theunicellular green microalgae (Chlorella vulgaris ) grown in batch system uses Al-Asady Factory for Seeds and Animal ...  Read More ...
A Neural Network Based Fuzzy Controller For Pneumatic Circuit
A Neural Network Based Fuzzy Controller For Pneumatic Circuit

Mohammed Yousif Hassan

Volume 28, Issue 4 , February 2010, Page 793-806

https://doi.org/10.30684/etj.28.4.14

Abstract
  Pneumatic circuits are widely used in industrial automation, such as drilling,sawing, squeezing, gripping, and spraying. Furthermore, they are used in motioncontrol of materials and ...  Read More ...
Using Fuzzy System To Control Cell Multiplexing In Atm Networking
Using Fuzzy System To Control Cell Multiplexing In Atm Networking

Faisal Abdullah; Khalook Y; Nazhat Saeed Abdul-Razaq

Volume 28, Issue 4 , February 2010, Page 807-826

https://doi.org/10.30684/etj.28.4.15

Abstract
  The aim of this research is to design and simulate a fuzzy logiccontroller (FLC) to control the cell multiplexing in Asynchronous TransferMode(ATM) networking , which is a high performance ...  Read More ...
Hybrid Information Hiding Technique Using Parametric Spline and DFT
Hybrid Information Hiding Technique Using Parametric Spline and DFT

Hanaa M; Hala Bahjat Abdul Wahab; Abdul Monem S. Rahma

Volume 28, Issue 4 , February 2010, Page 827-835

https://doi.org/10.30684/etj.28.4.16

Abstract
  Information hiding is a means to conical and transmitting information usingapparently innocent carrier without depiction any suspicions. This paper presents anew means for information ...  Read More ...
An Investigation of Object Shadows Utilization In 3D Shape Re-Construction Using Inexpensive Equipment
An Investigation of Object Shadows Utilization In 3D Shape Re-Construction Using Inexpensive Equipment

Ghassan A. Al-Kindi; Ali Abbar Khleif

Volume 28, Issue 4 , February 2010, Page 836-852

https://doi.org/10.30684/etj.28.4.17

Abstract
  An approach for automatic 3D object re-construction using its shadow ispresented. The approach investigates the use of information inherited by thegenerated object shadows to re-construct ...  Read More ...