The Optimal Selection of The Workers Number and Reduction The Time In Maintenance Lines of Production Machine Using Waiting lines Theory
The Optimal Selection of The Workers Number and Reduction The Time In Maintenance Lines of Production Machine Using Waiting lines Theory
Volume 29, Issue 14 , October 2011, Page 566-575

https://doi.org/10.30684/etj.29.14.18

Abstract
  Aiming to reduce waiting time and to get optimum investment for material and human resource .The queuing lines principle is introduced, the mathematical models required are given, and ...  Read More ...
The Effect of Addition of Carbon Fibers on Some Properties of Self Compacting Concrete
The Effect of Addition of Carbon Fibers on Some Properties of Self Compacting Concrete
Volume 29, Issue 14 , October 2011, Page 576-596

https://doi.org/10.30684/etj.29.14.19

Abstract
  To Study the possibility of producing self compacting concrete (SCC), 10% by weight of cement of metakaoline and silica fume were used and carbon fiber with two volume fraction (0.1%, ...  Read More ...
Study To Improve Some Mechanical Properties of Iraqi Portland Cement By Adding The Industrial Waste
Study To Improve Some Mechanical Properties of Iraqi Portland Cement By Adding The Industrial Waste
Volume 29, Issue 14 , October 2011, Page 597-606

https://doi.org/10.30684/etj.29.14.20

Abstract
  Added different percentages of iron slag ,which can be considered solid waste plants as well as iron and bauxite clays to Iraq Portland cement to improve its properties. 3- 15 wt % ...  Read More ...
Comparative Study of Swarm Intelligence Behavior to Solve Optimization Problems
Comparative Study of Swarm Intelligence Behavior to Solve Optimization Problems

Hasanen S. Abdullah

Volume 29, Issue 14 , October 2011, Page 2818-2840

https://doi.org/10.30684/etj.29.14.1

Abstract
  The optimization problems usually need specific techniques to solve, therefore many approaches and methods were proposed to solved such problems, but there are many difficulties (limitations) ...  Read More ...
Influence of the Butt Joint Design of TIG Welding on the Thermal Stresses
Influence of the Butt Joint Design of TIG Welding on the Thermal Stresses

Hani Aziz Ameen; Khairia Salman Hassan; Muwafaq Mehdi Salah

Volume 29, Issue 14 , October 2011, Page 2841-2858

https://doi.org/10.30684/etj.29.14.2

Abstract
  The aim of this paper is to demonstrate the influence of the single butt joint design of TIG welding on the thermal stresses for carbon steel type St-37. The butt welding was performed ...  Read More ...
Website Anti-Phishing Technique Using Randomized Dyadic Dilation DWT
Website Anti-Phishing Technique Using Randomized Dyadic Dilation DWT

Mohammed Gheni Alwan; Khlood I. Abbas; Mohammed lbrahim Ahmed

Volume 29, Issue 14 , October 2011, Page 2859-2868

https://doi.org/10.30684/etj.29.14.3

Abstract
  Website phishing is a growing threat on the internet and its effect is devastating when it comes to phishing financial web sites, such as eBay, official bank accounts or other critical ...  Read More ...
Rotational Viscosity Prediction Models For Asphalt Cement
Rotational Viscosity Prediction Models For Asphalt Cement

Alaa Saadi Abbas

Volume 29, Issue 14 , October 2011, Page 2869-2879

https://doi.org/10.30684/etj.29.14.4

Abstract
  It is a great importance to know asphalt cement viscosity in order to perform handling, mixing, application processes and asphalt compaction in highway surfacing.This paper presents ...  Read More ...
Validation of Numerical Computations and Turbulence Models Combinations for Gas Turbine Cascade Blade Flow
Validation of Numerical Computations and Turbulence Models Combinations for Gas Turbine Cascade Blade Flow

Assim Yousif Hameed; Hakem Tarteb

Volume 29, Issue 14 , October 2011, Page 2880-2899

https://doi.org/10.30684/etj.29.14.5

Abstract
  The accuracy of computer codes for turbo-machinery turbulent flow field calculations relies strongly on the type and behavior of the turbulence model used in the computations. Analysis ...  Read More ...
Optimizing the Process of Arc-Spraying To Improve Wear Resistance of Crank Shaft
Optimizing the Process of Arc-Spraying To Improve Wear Resistance of Crank Shaft

Asmaa Ali Hussein; Abdullah F. Hauier

Volume 29, Issue 14 , October 2011, Page 2900-2911

https://doi.org/10.30684/etj.29.14.6

Abstract
  This research studies the factors effecting on coating produced by electrical arcspraying. The studied variables are applied voltage, wire feed rate and spraying distance.In this investigation ...  Read More ...
Particle Swarm Optimization for Adapting Fuzzy Logic Controller of SPWM Inverter Fed 3-Phase I.M.
Particle Swarm Optimization for Adapting Fuzzy Logic Controller of SPWM Inverter Fed 3-Phase I.M.

Fadhil A. Hassan; Lina J. Rashad

Volume 29, Issue 14 , October 2011, Page 2912-2925

https://doi.org/10.30684/etj.29.14.7

Abstract
  According to the high performance demand of speed control of an induction motor, Fuzzy Logic Controller (FLC) gives superior behavior over wide range of speed variation. Fuzzy logic ...  Read More ...
Studying the Effect of Chemical Solutions on Bending Behavior of Epoxy Reinforced With CDs Waste
Studying the Effect of Chemical Solutions on Bending Behavior of Epoxy Reinforced With CDs Waste

Nervana A. Abd Alameer

Volume 29, Issue 14 , October 2011, Page 2926-2932

https://doi.org/10.30684/etj.29.14.8

Abstract
  The aim of this study is the effect of salt, acid and base solutions on bending behavior of CDs reinforced epoxy. Epoxy resin matrix is reinforced with weight fraction 15, 30&45 ...  Read More ...
Non-Destructive Test of Concrete Structures Using: FERROSCAN
Non-Destructive Test of Concrete Structures Using: FERROSCAN

Aseel A.Salman

Volume 29, Issue 14 , October 2011, Page 2933-2941

https://doi.org/10.30684/etj.29.14.9

Abstract
  The non-destructive testing (NDT) industry is reviewed, the major techniques being described and current development directions and challenges identified. One of the most common techniques ...  Read More ...
Lipes Tracking Using Active Contour Method
Lipes Tracking Using Active Contour Method

Abdul Monem S. Rahma; Abdulhamza A. Abdul karim

Volume 29, Issue 14 , October 2011, Page 2942-2953

https://doi.org/10.30684/etj.29.14.10

Abstract
  Speech recognition based on visual information such as the lip shape and its movement is referred to as lip reading. The visual features are derived according to the frame rate of the ...  Read More ...
Alpha Amylase Production by Aspergillus Oryzae Using Solid State Fermentation
Alpha Amylase Production by Aspergillus Oryzae Using Solid State Fermentation

Suhad Adnan Ahmed

Volume 29, Issue 14 , October 2011, Page 2954-2960

https://doi.org/10.30684/etj.29.14.11

Abstract
  A fungal strain of Aspergillus oryzae was used for the production of alpha amylase by solid state fermentation from agro-industrial waste. Enzyme production was growth associated and ...  Read More ...
Experimental Investigations in Circular Tube to Enhance Turbulent Heat Transfer Using Various Types of Twisted Tape Insert
Experimental Investigations in Circular Tube to Enhance Turbulent Heat Transfer Using Various Types of Twisted Tape Insert

Akeel Abdullah Mohammed; Ameer A. Jadoaa

Volume 29, Issue 14 , October 2011, Page 2961-2972

https://doi.org/10.30684/etj.29.14.12

Abstract
  This work shows the results obtained from experimental investigations of the augmentation of turbulent flow heat transfer in a horizontal tube by means of twisted tape inserts. Six ...  Read More ...
Parameters Influence Pedestrian Traffic Safety at Urban Unsignalized Intersections
Parameters Influence Pedestrian Traffic Safety at Urban Unsignalized Intersections

Sahar Saffaa Hadi

Volume 29, Issue 14 , October 2011, Page 2973-2985

https://doi.org/10.30684/etj.29.14.13

Abstract
  This paper reports on diagnostic parameters for pedestrian traffic safety problems using the Traffic Conflict Analysis Technique (TCT), particularly for pedestrian crossings at urban ...  Read More ...
A study of Free Convection in A solar Chimney Model
A study of Free Convection in A solar Chimney Model

Sabah Tarik Ahmed; Miqdam Tariq Chaichan

Volume 29, Issue 14 , October 2011, Page 2986-2997

https://doi.org/10.30684/etj.29.14.14

Abstract
  A solar chimney is a hot air channel attached to a circular translucent roof opens at the periphery. The roof and the ground below it form an air collector. It enhances natural ventilation ...  Read More ...
The performance of Hydrogenated Amorphous Silicon Charge Coupled Devices
The performance of Hydrogenated Amorphous Silicon Charge Coupled Devices

Saad Al-Sabbagh

Volume 29, Issue 14 , October 2011, Page 2998-3005

https://doi.org/10.30684/etj.29.14.15

Abstract
  From gas phase and by glow-discharge method Hydrogenated Amorphous Silicon Charged Coupled devices have been deposited. A detailed practical study has been carried out. The most important ...  Read More ...
Surface Treatment of Aluminum Alloys Using Nd:YAG Laser
Surface Treatment of Aluminum Alloys Using Nd:YAG Laser

Majid Hammed Ismaiei; Mohamed Abdul Wahhab

Volume 29, Issue 14 , October 2011, Page 3006-3018

https://doi.org/10.30684/etj.29.14.16

Abstract
  In this research, a pulsed Nd:YAG laser with wavelength (1064nm ) and (532 nm) and pulse duration (100 ns) for different energies [250 mJ,500 mJ,750 mJ,1000 mJ ] and spot size (1.5mm) ...  Read More ...
Removal of SO2 in Dry Fluidized and Fixed Bed Reactors using Granular Activated Carbon
Removal of SO2 in Dry Fluidized and Fixed Bed Reactors using Granular Activated Carbon

Neran K. Ibrahim; Omar A. Jabbar

Volume 29, Issue 14 , October 2011, Page 3019-3037

https://doi.org/10.30684/etj.29.14.17

Abstract
  Flue gas desulfurization process has been studied using granular activated carbon in bubbling fluidized bed reactor. For the sake of comparison, fixed bed configuration has been also ...  Read More ...