An experimental study of diverging angle effect on separation location in two - dimensional diffuser
An experimental study of diverging angle effect on separation location in two - dimensional diffuser

Zeina Khalifa. Kazem; Qusay Jihad Abdul-Ghafoor; Wesam Abed katea

Volume 27, Issue 5 , March 2009, Page 157-170

https://doi.org/10.30684/etj.27.5.16

Abstract
  The present study deals with flow of air in a two dimensional diffuser. A numberof test models of diffusers with different angles raging between (0◦ - 30◦) weremanufactured. The ...  Read More ...
Experimental study of Inclination angle and Surface Area Effects For Longitudinally Finned Cylinder on Free Convection Heat Transfer in an open Enclosure
Experimental study of Inclination angle and Surface Area Effects For Longitudinally Finned Cylinder on Free Convection Heat Transfer in an open Enclosure

Salem Khalifa Kazem; Kamel Abed-Hussain

Volume 27, Issue 5 , March 2009, Page 171-180

https://doi.org/10.30684/etj.27.5.17

Abstract
  This study deals with heat transfer by free convection from the outer surface of twocylinders (Triangular & Rectangular shape fined cylinder 12-fins). The experimentalwork was conducted ...  Read More ...
Effect of partial heat treatment on the mechanical properties of high carbon tool steel used in manufacturing active parts in cold work tool steel dies
Effect of partial heat treatment on the mechanical properties of high carbon tool steel used in manufacturing active parts in cold work tool steel dies
Volume 27, Issue 5 , March 2009, Page 181-189

https://doi.org/10.30684/etj.27.5.18

Abstract
  Effect of partial heat treatment on the mechanical properties of high carbon tool steel used in manufacturing active parts in cold work tool steel dies was investigated in this work. ...  Read More ...
Blended Learning in medicine collage
Blended Learning in medicine collage

Inaam Abbas Hyder

Volume 27, Issue 5 , March 2009, Page 190-199

https://doi.org/10.30684/etj.27.5.19

Abstract
  The university education Almtmazj model combines the traditional way ofeducation and the use of modern technology. And has many benefits, is to shorten the time, effort and cost, in ...  Read More ...
Effect Of Temperature On Gas Misaligned Journal Bearing Under Dynamic Loads
Effect Of Temperature On Gas Misaligned Journal Bearing Under Dynamic Loads

Moufiq Ali. Tawfiq; Ameer Tophan. Shafeq

Volume 27, Issue 5 , March 2009, Page 200-217

https://doi.org/10.30684/etj.27.5.20

Abstract
  This study investigates the effect of a temperature on thehydrodynamic lubrication of misaligned gas ( air ) journal bearingunder dynamic loads and study this effect on the distribution ...  Read More ...
(Preparation of Pyrolytic Graphite (PG) Shell Using CVD Technique)
(Preparation of Pyrolytic Graphite (PG) Shell Using CVD Technique)

Abdul- Qader Dawood Faisal

Volume 27, Issue 5 , March 2009, Page 868-879

https://doi.org/10.30684/etj.27.5.1

Abstract
  A Pyrolytic graphite (PG) shell was produced by Chemical Vapor Deposition (CVD) using a new modified vacuum furnace. The deposition experiments of (PG) were achieved on a substrate ...  Read More ...
The Effect of Thermal Annealing on the Diffusion Profile of Nickel in GaAs Substrates
The Effect of Thermal Annealing on the Diffusion Profile of Nickel in GaAs Substrates

Aseel A.K. Hadi

Volume 27, Issue 5 , March 2009, Page 880-885

https://doi.org/10.30684/etj.27.5.2

Abstract
  Diffusion of nickel in GaAs has been studied at 950ºC. The diffusion wasenhanced during limited interval and for different quantities of As. Nickel atomshad diffused in the beginning ...  Read More ...
Approximation Solution of Volterra Integral Equation Using Adomian Decomposition Method
Approximation Solution of Volterra Integral Equation Using Adomian Decomposition Method

Khawla A. AL-Zubaidy

Volume 27, Issue 5 , March 2009, Page 886-890

https://doi.org/10.30684/etj.27.5.3

Abstract
  In this paper, Adomian Decomposition method has been used to find the approximationsolution for the linear Volterra integral equation of the second kind. In this method the solution ...  Read More ...
Synthesis of novel metal complexes of 5-(4-isopropoxyphenyl)-Nphenyl- 1,3,4-thiadiazol-2-amine
Synthesis of novel metal complexes of 5-(4-isopropoxyphenyl)-Nphenyl- 1,3,4-thiadiazol-2-amine

Ahmed AbdulAmier Hussain Al-Amiery; Muna A. Shakir; Maysoon Yousif

Volume 27, Issue 5 , March 2009, Page 891-897

https://doi.org/10.30684/etj.27.5.4

Abstract
  New5-(4-isopropoxyphenyl)-N-phenyl-1,3,4-thiadiazol-2-amine have beensynthesized in good yield by the reaction of N-phenylhydrazinecarbothioamide with a 4-isopropoxybenzoic acid in ...  Read More ...
A High Quality Output Voltage for HEPWM of Single Phase AC Motor Drive
A High Quality Output Voltage for HEPWM of Single Phase AC Motor Drive

Jamal A. Mohammed; Ali H. Jabbar; Mohammed K. Edan

Volume 27, Issue 5 , March 2009, Page 898-912

https://doi.org/10.30684/etj.27.5.5

Abstract
  provide the exact on-line solution to the optimal PWM problem. The proposedalgorithm optimization technique is applied to a 3-level unipolar single-phase inverter todetermine optimum ...  Read More ...
Experimental Tests on Orthotropically RC Rectangular Slabs Having Various Restrained Edges and Subjected to Uniform Load
Experimental Tests on Orthotropically RC Rectangular Slabs Having Various Restrained Edges and Subjected to Uniform Load

Husain M. Husain; Hisham M.AL-Hassani; Sarmad S. Abdul-Qader AL-Badri

Volume 27, Issue 5 , March 2009, Page 913-929

https://doi.org/10.30684/etj.27.5.6

Abstract
  In this research, nine orthotropically reinforced concrete (RC) rectangular slabshaving various boundary restraints at the edges are tested under uniformly distributedload. The main ...  Read More ...
An Investigation of the Inhibition of the Oxygen Reduction Reaction at a Rotating Cylinder Electrode under Isothermal and Controlled Conditions of Heat and Mass Transfer
An Investigation of the Inhibition of the Oxygen Reduction Reaction at a Rotating Cylinder Electrode under Isothermal and Controlled Conditions of Heat and Mass Transfer

Shatha. A. Sameh; Sadiq. H. Alwash

Volume 27, Issue 5 , March 2009, Page 930-941

https://doi.org/10.30684/etj.27.5.7

Abstract
  The inhibition of the oxygen reduction reaction on a carbon steel rotatingcylinder electrode in naturally aerated 600 ppm Cl- solution was studied using anoptimum inhibitor blend, i.e., ...  Read More ...
Analysis of Composite Bridge Superstructures Using Modified Grillage Method
Analysis of Composite Bridge Superstructures Using Modified Grillage Method

Sabeeh Z. Al-Sarraf; Ammar A. Ali; Rana A. Al-Dujaili

Volume 27, Issue 5 , March 2009, Page 942-953

https://doi.org/10.30684/etj.27.5.8

Abstract
  The analysis principle was used to analyze anisotropic plates (having differentelastic properties and geometries in different directions), the model consists of four sidebeams with ...  Read More ...
A Restriction Enzyme from Escherichia coli Purification and General Properties
A Restriction Enzyme from Escherichia coli Purification and General Properties

Mukaram Shikara; Nadia Tariq Barakat; Maysem Modaffer Al-Obaidy

Volume 27, Issue 5 , March 2009, Page 954-961

https://doi.org/10.30684/etj.27.5.9

Abstract
  An endonuclease restriction enzyme has been purified from E. coli about 40-fold withDNAse and RNAse recoveries of about 3%. The purification steps included precipitationof the enzyme ...  Read More ...
Three-Dimensional, Unsteady, Inviscid Flow in an Axial Turbine Stage
Three-Dimensional, Unsteady, Inviscid Flow in an Axial Turbine Stage

Abdulhassan A. Karamallah; Talib Z. Farge; Sudad I. Younis

Volume 27, Issue 5 , March 2009, Page 962-972

https://doi.org/10.30684/etj.27.5.10

Abstract
  This paper presents an advanced approach to compute the three-dimensional,rotational, adiabatic, inviscid flow of a perfect gas in a highly twisted transonic axial turbinestage. The ...  Read More ...
Neuro-Snake Pattern Recognition And Classification Using Gradiant Vector Flow (Gvf And Hnn)
Neuro-Snake Pattern Recognition And Classification Using Gradiant Vector Flow (Gvf And Hnn)

Wissam Hassan Ali

Volume 27, Issue 5 , March 2009, Page 973-982

https://doi.org/10.30684/etj.27.5.11

Abstract
  The most popular applications of Hopfield neural network algorithm (HNN) arepattern recognition and classification. But the HNN has some limitation like the localminima (oscillation) ...  Read More ...
Sliding Mode Control For Gust Responses In Tall Building
Sliding Mode Control For Gust Responses In Tall Building

Usama Yasien Mahmoud; Farazdaq Rafeeq Yasien; Taghreed M. Mohammad Ridha

Volume 27, Issue 5 , March 2009, Page 983-992

https://doi.org/10.30684/etj.27.5.12

Abstract
  The race toward new heights has led to the construction of tall flexible buildingswith low inherent structural damping. As buildings get taller their sensitivity to windexcitations ...  Read More ...
Corrosion of Copper in Deaerated and Oxygenated 0.1M H2SO4 Solutions under Controlled Conditions of Mass Transfer
Corrosion of Copper in Deaerated and Oxygenated 0.1M H2SO4 Solutions under Controlled Conditions of Mass Transfer

Shatha A.Sameh; Issam K.Salih; Sadiq H.Alwash; Asawer AL-Waisty

Volume 27, Issue 5 , March 2009, Page 993-1007

https://doi.org/10.30684/etj.27.5.13

Abstract
  The corrosion behavior of copper in deaerated and oxygenated 0.1 H2SO4solutions has been investigated using the rotating cylinder electrode under turbulentflow conditions. Potentiostatic ...  Read More ...
Recovery of PVA Using Polyethersulfone (PES) Hollow Fiber Ultrafiltration Membranes: Part II: Effect of Carboxymethyl Cellulose (CMC) Concentration
Recovery of PVA Using Polyethersulfone (PES) Hollow Fiber Ultrafiltration Membranes: Part II: Effect of Carboxymethyl Cellulose (CMC) Concentration

Najat J. Saleh; Amel Alhelaly; Jamal M. Ali; Qusay Alsalhy

Volume 27, Issue 5 , March 2009, Page 1008-1016

https://doi.org/10.30684/etj.27.5.14

Abstract
  Polyethersulfone (PES) hollow fiber ultrafiltration (UF) membrane with the molecularweight cut-off (MWCO) 20,000 was used for the recovery of polyvinyl alcohol (PVA) fromthe simulated ...  Read More ...
Integrating Assembly Planning and Line Balancing Using Precedence Diagram
Integrating Assembly Planning and Line Balancing Using Precedence Diagram

Bushra Basheer Abdulhasan

Volume 27, Issue 5 , March 2009, Page 1017-1025

https://doi.org/10.30684/etj.27.5.15

Abstract
  Traditionally, assembly planning and assembly line balancing are considered astwo independent tasks. Assembly planning represents a fundamental step in the operationof a manufacturing ...  Read More ...