Laser Treatment of Plasma Spraying Alloyed Coatings
Laser Treatment of Plasma Spraying Alloyed Coatings

Mohammed Jasim Kadhim; Sami Ibrahim Jaffar; Eman Adnan Anon

Volume 30, Issue 16 , September 2012, Page 343-354

https://doi.org/10.30684/etj.30.16.15

Abstract
  Ni23Cr6Al0.4Y plasma sprayed coating on nimonic75 substrate was remelted using a 1 kW continues CO2 laser. The topography, microstructure, phases and chemical analysis of plasma sprayed ...  Read More ...
Design Optimization and Efficiency Enhancement of Linear Induction Motor
Design Optimization and Efficiency Enhancement of Linear Induction Motor

Adil H. Ahmad; Marwa Mohammad Marei

Volume 30, Issue 16 , September 2012, Page 2745-2756

https://doi.org/10.30684/etj.30.16.1

Abstract
  This paper presents the dynamic behavior of a Single Sided Linear Induction Motor (SLIM) by changing many design parameters of a reference model of SLIM then an optimization process ...  Read More ...
The Effect of Curvature Estimations and Lighting Factor In The Edge Detection For 3D Rendered Images
The Effect of Curvature Estimations and Lighting Factor In The Edge Detection For 3D Rendered Images

Alaa Noori Mazher

Volume 30, Issue 16 , September 2012, Page 2757-2766

https://doi.org/10.30684/etj.30.16.2

Abstract
  This paper presents new approach in the edge detection of 3D images (for nonphotorealistic rendering). This new approach uses curvature estimations with lighting effect on triangle ...  Read More ...
The Influence of Operation Conditions on the Permeative Flux of (PVC/PS) Hollow Fiber Membrane
The Influence of Operation Conditions on the Permeative Flux of (PVC/PS) Hollow Fiber Membrane

Qusy F.Alsalhy; Jamal M.Ali; Khitam S.Shaker

Volume 30, Issue 16 , September 2012, Page 2767-2777

https://doi.org/10.30684/etj.30.16.3

Abstract
  Membranes have gained an important place in chemical technology and are used in a wide range of applications. This investigation has studied the effect of operating conditions such ...  Read More ...
Upgrading of Basrah-Kirkuk Blend Crude Oil Through Mechanical-Acoustical Effect and (Labs) as Surfactant
Upgrading of Basrah-Kirkuk Blend Crude Oil Through Mechanical-Acoustical Effect and (Labs) as Surfactant

Adel Sharif Hamadi; Gufran Raheem; Salam Hussain

Volume 30, Issue 16 , September 2012, Page 2778-2791

https://doi.org/10.30684/etj.30.16.4

Abstract
  Non-Convential method has been used in this study for upgrading mixture of Basrah- Kirkuk crude oil through mechanical - acoustical effect using hydrodynamical coaxial turbo machine ...  Read More ...
Numerical Study for Natural Convection within a Rotating Cubic Enclosure
Numerical Study for Natural Convection within a Rotating Cubic Enclosure

Hussein Majeed Salih

Volume 30, Issue 16 , September 2012, Page 2792-2810

https://doi.org/10.30684/etj.30.16.5

Abstract
  A numerical study of three–dimensional, steady, turbulent and incompressible natural convection of air (Pr=0.72) within a rotating cubic enclosure is presented. The present code ...  Read More ...
Absolute Maximum Bending Moment in Short Simply Supported Beams under Moving Point Loads
Absolute Maximum Bending Moment in Short Simply Supported Beams under Moving Point Loads

Layla Ali Ghaleb Yaseen

Volume 30, Issue 16 , September 2012, Page 2811-2833

https://doi.org/10.30684/etj.30.16.6

Abstract
  This paper represents a theoretical investigation of the location of the absolute maximum bending moment in short simply supported beams under the influence of several moving point ...  Read More ...
Performance of MAC- IEEE802.11n-Over-Fiber Network in Presence of Errors in the Transmitting Channel
Performance of MAC- IEEE802.11n-Over-Fiber Network in Presence of Errors in the Transmitting Channel

Ali M. Alsahlany; Haider M. AlSabbagh; Saod A. Alseyab

Volume 30, Issue 16 , September 2012, Page 2834-2842

https://doi.org/10.30684/etj.30.16.7

Abstract
  An analytical model is presented to evaluate the MAC-protocol performance of the IEEE802.11n-over–fiber network with taking into account probability of error occurring in the ...  Read More ...
Design of Beam-Columns Using Artificial Neural Networks
Design of Beam-Columns Using Artificial Neural Networks

Abdelmaseeh Bakos Keryou; Raid Rafi Al-Nima; Rafal Naheth Wadie

Volume 30, Issue 16 , September 2012, Page 2843-2857

https://doi.org/10.30684/etj.30.16.8

Abstract
  In this paper, manual design of beam-columns, based on the procedure adopted by american society of steel construction, is described. an attempt has been taken to apply artificial neural ...  Read More ...
Control on 3-D Fixable Wing Flutter Using an Adaptive Neural Controller
Control on 3-D Fixable Wing Flutter Using an Adaptive Neural Controller

Mauwafak Ali Tawfik; Mohammed Idris Abu-Tabikh; Hayder Sabah Abd Al-Amir

Volume 30, Issue 16 , September 2012, Page 2858-2874

https://doi.org/10.30684/etj.30.16.9

Abstract
  An adaptive neural controller to control on flutter in 3-D flexible wing is proposed. The aeroelastic model was based on the coupling between structure-of the equivalent plate (wing) ...  Read More ...
Effects of Gold and Silver Colloidal on Gama Glutamate Transferase Enzyme Activity in Blood Serum
Effects of Gold and Silver Colloidal on Gama Glutamate Transferase Enzyme Activity in Blood Serum

Salma Abdul Rudha Abbass; Amer Hasan Abdullah; Abdulrahman K. Ali

Volume 30, Issue 16 , September 2012, Page 2875-2883

https://doi.org/10.30684/etj.30.16.10

Abstract
  Laser ablation of metal plate in water was performed in order to obtain gold and silver nanoparticles. Transmittance electron microscopy TEM and uv-vis spectrophotometer were conducted ...  Read More ...
Design of a Novel Patch Antenna with Enhanced Gain and Side Lobe Reduction
Design of a Novel Patch Antenna with Enhanced Gain and Side Lobe Reduction

Jabir S. AZIZ

Volume 30, Issue 16 , September 2012, Page 2884-2897

https://doi.org/10.30684/etj.30.16.11

Abstract
  The design of an efficient and directive small size antenna, for modern wireless applications, is a major challenge. This paper introduces the design and simulation of new method to ...  Read More ...
Applying Non-linear Damage Model for Predicating Corrosion Effect on Fatigue Life of (carbon + glass) Fibers / PMMA Composite
Applying Non-linear Damage Model for Predicating Corrosion Effect on Fatigue Life of (carbon + glass) Fibers / PMMA Composite

Husin .J.M. Al-Alkawi; Amer Hameed Majeed; Saisaban Ali Fahad

Volume 30, Issue 16 , September 2012, Page 2898-2909

https://doi.org/10.30684/etj.30.16.12

Abstract
  The objective of this work is to investigate the salt water effects on fatigue degradation, and stress-life relationship. A series of reversed fatigue experiments were conducted on ...  Read More ...
Study the (Wear, Roughness, Micro hardness) of the Electroplated Layers on Low Carbon Steel Improved by Shoot Penning
Study the (Wear, Roughness, Micro hardness) of the Electroplated Layers on Low Carbon Steel Improved by Shoot Penning

Abd Al- khalaq Fawzy Hamood

Volume 30, Issue 16 , September 2012, Page 2910-2922

https://doi.org/10.30684/etj.30.16.13

Abstract
  In this study an electroplating method has been employed (with zinc, nickle). Studying of mechanical, surface, metallurgical properties for each coated systems and made a comparison ...  Read More ...
Investigation of the Dowel and Friction Forces in Fiber Reinforced Ultra High Performance Concrete Beams
Investigation of the Dowel and Friction Forces in Fiber Reinforced Ultra High Performance Concrete Beams

Kaiss F. Sarsam; Maha M. S. Ridha; Zainab H. Mahdi

Volume 30, Issue 16 , September 2012, Page 2923-2936

https://doi.org/10.30684/etj.30.16.14

Abstract
  The phenomenon of dowel action as a shear transfer mechanism across cracks has long been recognized as an important component of the overall shear resistance capacity of reinforced ...  Read More ...