Study of the Prodigiosin productivity from Serratia marcescens isolated from environmental and clinical sources and the effect on some microbial pathogens
Study of the Prodigiosin productivity from Serratia marcescens isolated from environmental and clinical sources and the effect on some microbial pathogens
Volume 28, Issue 16 , August 2010, Page 767-771

https://doi.org/10.30684/etj.28.16.19

Abstract
  The Prodigiosin pigment was purified by using the organic solventschloroform and methanol with thin layer chromategraphy method. The biological activity for prodigiosin pigment was ...  Read More ...
Vibration Analysis of Exhaust Gas Silencer
Vibration Analysis of Exhaust Gas Silencer
Volume 28, Issue 16 , August 2010, Page 772-798

https://doi.org/10.30684/etj.28.16.20

Abstract
  This research presents an analysis of the vibration of exhaust gas silencer , assuming that the silencer is mainly consisting of a porous pipe of 0.042 m outer diameter , 0.0006 m thickness ...  Read More ...
Control of Separation For NACA 2412 Airfoil At Different Angles of Attack Using Air Blowing
Control of Separation For NACA 2412 Airfoil At Different Angles of Attack Using Air Blowing

Jalal M. Jalil; Assim H. Yousif; Yasser Ahmed Mahmood

Volume 28, Issue 16 , August 2010, Page 5138-5150

https://doi.org/10.30684/etj.28.16.1

Abstract
  The study of the separation control using the jet blowing based on thecomputation of Reynolds-average Navier-Stocks equations is carried out in this work. A numerical model based on ...  Read More ...
Laser Surface Treatment for Anodizing Process of Aluminum Alloy
Laser Surface Treatment for Anodizing Process of Aluminum Alloy

Ali.A.Abdul Hadi

Volume 28, Issue 16 , August 2010, Page 5151-5164

https://doi.org/10.30684/etj.28.16.2

Abstract
  Laser material processing play important role to improve surface properties, in this work Aluminum AA1100 was used to build Al2O3 oxide layer on the main surface of the workpiece in ...  Read More ...
Study of The Wear Rate of Some Polymer Materials In Different Conditions
Study of The Wear Rate of Some Polymer Materials In Different Conditions

Awham M. H; Sadeer M. M; Bushra H. M

Volume 28, Issue 16 , August 2010, Page 5165-5170

https://doi.org/10.30684/etj.28.16.3

Abstract
  The current investigation is interested by study of the wear phenomenon for two polymeric materials (Epoxy and Unsaturated polyester) resins, the prepared specimens were tested at room ...  Read More ...
Active Magnetic Bearing Design Optimization and Transient-State Analysis Using ANSYS
Active Magnetic Bearing Design Optimization and Transient-State Analysis Using ANSYS

Adil H. Ahmed; Thamir M. Abdul Wahab

Volume 28, Issue 16 , August 2010, Page 5171-5187

https://doi.org/10.30684/etj.28.16.4

Abstract
  This paper presents design optimization, and transient-state analysis ofactive magnetic bearings (AMB) using the powerful ANSYS software package.ANSYS software provides the required ...  Read More ...
Analysis and Simulation of Shunt Active Power Filter For Harmonic Cancellation of Non Linear Loads
Analysis and Simulation of Shunt Active Power Filter For Harmonic Cancellation of Non Linear Loads

Ahmed M. Mohammed

Volume 28, Issue 16 , August 2010, Page 5188-5199

https://doi.org/10.30684/etj.28.16.5

Abstract
  Use of nonlinear loads, such as power converters, power sources,uninterruptible power supply (UPS) units, and arc devices like electric furnaces and fluorescent lamps and large adjustable ...  Read More ...
Impact Resistance of Lightweight Chopped Worn-Out Tires Concrete
Impact Resistance of Lightweight Chopped Worn-Out Tires Concrete

Zaid M. K. Al-Azzawi; Dhafir T. F. Al-Khameesi

Volume 28, Issue 16 , August 2010, Page 5200-5212

https://doi.org/10.30684/etj.28.16.6

Abstract
  This study summarizes results of an experimental investigation of theimpact resistance of 12 lightweight concrete slabs made from incorporating chopped worn-out tires (Ch.W.T.) into ...  Read More ...
Remote Sensing Model for Monitoring Trophic State of Al Huweizah Marsh
Remote Sensing Model for Monitoring Trophic State of Al Huweizah Marsh

Abdul Razzak T. Ziboon; Riyadd Z.Al Zubaidy; Mahmoud S. Al Khafaji

Volume 28, Issue 16 , August 2010, Page 5213-5222

https://doi.org/10.30684/etj.28.16.7

Abstract
  Remote sensing techniques were used to monitor the Trophic State Index(TSI) within Al Huweizah Marsh. The TSI is a function of Secchi depth (SD), which is a function of the spectral ...  Read More ...
An Effective Wireless Monitoring Tool (EWMT)
An Effective Wireless Monitoring Tool (EWMT)

Afnan Adil Abd Alraheem; Shaimaa H. Shaker; Mumtaz M. AL-Mukhtar

Volume 28, Issue 16 , August 2010, Page 5223-5237

https://doi.org/10.30684/etj.28.16.8

Abstract
  As computer networking has expanded and matured, there has been a growing requirement to collect traffic statistics for understanding the current load and planning future connectivity. ...  Read More ...
Studying Some Of Mechanical properties Of (sawdust/Un Saturated Polyester) Composite in salt solution
Studying Some Of Mechanical properties Of (sawdust/Un Saturated Polyester) Composite in salt solution

Sanaa A. A. Hafad

Volume 28, Issue 16 , August 2010, Page 5238-5245

https://doi.org/10.30684/etj.28.16.9

Abstract
  Commercial sawdust is the most common wood filler used for polysterthermosetting and is produced from graduated particles of different sizes which has in general has a lower aspect ...  Read More ...
Dynamic Analysis of Gough-Stewart Platform Manipulator
Dynamic Analysis of Gough-Stewart Platform Manipulator

Muhsin N. Hamza; Hassan M. Alwan

Volume 28, Issue 16 , August 2010, Page 5246-5255

https://doi.org/10.30684/etj.28.16.10

Abstract
  A novel derivation to evaluate all the controlled forces which cause by the motors and effected along the prismatic joints on the legs of the Gough-Stewart platform manipulator based ...  Read More ...
Analysis Frequency Modulation Mode-Locked Fiber Laser by Using ABCD Rule
Analysis Frequency Modulation Mode-Locked Fiber Laser by Using ABCD Rule

Jassim Kadim Hmood; Bushra R. Mahdi

Volume 28, Issue 16 , August 2010, Page 5256-5270

https://doi.org/10.30684/etj.28.16.11

Abstract
  In this paper the study of Frequency Modulation (FM) mode-locking fiber laser is presented. The time-domain ABCD law was employed to clarify the impacts of optical elements on the mode-lock ...  Read More ...
A Numerical Model For Performance Prediction Of Dry Cooling Conditions Of Air Cooled Condensers In Thermal Power Plant Stations
A Numerical Model For Performance Prediction Of Dry Cooling Conditions Of Air Cooled Condensers In Thermal Power Plant Stations

Ali Hussain Tarrad

Volume 28, Issue 16 , August 2010, Page 5271-5291

https://doi.org/10.30684/etj.28.16.12

Abstract
  The present work represents theoretical treatment of dry cooling of the air cooled condensers applied in the power plants technology. A suggested model was built in a form of computer ...  Read More ...
Design An Expert System To Detect The Errors In Logic Circuits
Design An Expert System To Detect The Errors In Logic Circuits

Eman Yousif Nasir

Volume 28, Issue 16 , August 2010, Page 5292-5309

https://doi.org/10.30684/etj.28.16.13

Abstract
  An expert system is a computer program designed to simulate the problem-solving behavior of a human who is an expert in a narrow domain or discipline. An expert system is normally composed ...  Read More ...
Effect of Current Density And Heat Treatment on The Electrodeposited Nickel Coated Bulk Graphite
Effect of Current Density And Heat Treatment on The Electrodeposited Nickel Coated Bulk Graphite

Salam H.Al; Sabah M. Ali Radha; Farah A. Abed

Volume 28, Issue 16 , August 2010, Page 5310-5316

https://doi.org/10.30684/etj.28.16.14

Abstract
  In this work , a bulk graphite substrate was coated with nickel usingelectroplating technology. The reason of this work is to remove the oxidation characteristics of graphite at intermediate ...  Read More ...
Design of Low Dispersion Flattened Optical Fiber
Design of Low Dispersion Flattened Optical Fiber

Alaa Hussein Ali

Volume 28, Issue 16 , August 2010, Page 5317-5326

https://doi.org/10.30684/etj.28.16.15

Abstract
  Dispersion of the transmitted optical signal causes distortion for both digital and analog transmission along optical fibers. When considering the major implementation of optical fiber ...  Read More ...
Practical Application For Designing Quality House (Case Study)
Practical Application For Designing Quality House (Case Study)

Khalil I. Mahmoud; Zainab K. Hantoosh; Muslih Abdullah

Volume 28, Issue 16 , August 2010, Page 5327-5345

https://doi.org/10.30684/etj.28.16.16

Abstract
  Quality Function Deployment (QFD), as came in definition ,is asystematic thinking process for product planning that enables businesses to consider the characteristics of product to ...  Read More ...
Numerical Modelling of Transient Flow In Long Oil Pipe Line System
Numerical Modelling of Transient Flow In Long Oil Pipe Line System

Shaker H. Aljanabi

Volume 28, Issue 16 , August 2010, Page 5346-5364

https://doi.org/10.30684/etj.28.16.17

Abstract
  The problem of unsteady flow are frequently encountered in long oilpipelines without the provision of surge tank due to sudden closing oropening of valve and pump trip. The oil-hammer ...  Read More ...
Effects of Nano-Fluids Types, Volume Fraction of Nano-Particles, and Aspect Ratios on Natural Convection Heat Transfer in Right- Angle Triangular Enclosure
Effects of Nano-Fluids Types, Volume Fraction of Nano-Particles, and Aspect Ratios on Natural Convection Heat Transfer in Right- Angle Triangular Enclosure

Israa Y. Daood

Volume 28, Issue 16 , August 2010, Page 5365-5388

https://doi.org/10.30684/etj.28.16.18

Abstract
  This study investigates natural convection heat transfer and fluid flowcharacteristic of water based nano-fluids in a right-angle triangular enclosure, where the left vertical wall ...  Read More ...