Comparison primary treatment study for chemical and biochemical process on cotton waste products as energy source for A.niger
Comparison primary treatment study for chemical and biochemical process on cotton waste products as energy source for A.niger
Volume 28, Issue 2 , January 2010, Page 46-51

https://doi.org/10.30684/etj.28.2.18

Abstract
  This study was designed for chemical and biochemical processes on wastecotton as energy resource by Aspergillus niger. In the tenth day the highpercentage in protein production 13.13% ...  Read More ...
Heat Transfer from Longitudinally Finned Cylinder with Different Inclination angles inside Adiabatic Duct
Heat Transfer from Longitudinally Finned Cylinder with Different Inclination angles inside Adiabatic Duct
Volume 28, Issue 2 , January 2010, Page 52-62

https://doi.org/10.30684/etj.28.2.19

Abstract
  This study deals with heat transfer by free convection from the outer surface oftwo cylinders (Triangular & Rectangular shape fined cylinder 8-fins). Theexperimental work was conducted ...  Read More ...
The Impact of Educational Architectural Studio's Environment on Student's Performance
The Impact of Educational Architectural Studio's Environment on Student's Performance
Volume 28, Issue 2 , January 2010, Page 63-80

https://doi.org/10.30684/etj.28.2.20

Abstract
  Generally;the conditions in an educational studio's by providing a suitableenvironment for the students, "place of work' has a profound impact on the student'sphysical and mental creativity. ...  Read More ...
The Use of Local Sawdust as an Adsorbent for the Removal of Copper Ion from Wastewater Using Fixed Bed Adsorption
The Use of Local Sawdust as an Adsorbent for the Removal of Copper Ion from Wastewater Using Fixed Bed Adsorption

Nagham A. Ageena

Volume 28, Issue 2 , January 2010, Page 224-235

https://doi.org/10.30684/etj.28.2.1

Abstract
  The aim of the present work is to study the removal of copper ion presents inindustrial waste water using the local sawdust.Adsorption column was utilized in the removal process at ...  Read More ...
Digitally Processed Geophysical Data Sets for Identification of Geological Features in Southern Iraq
Digitally Processed Geophysical Data Sets for Identification of Geological Features in Southern Iraq

Hussein H. Karim; Hussain Z. Ali; Ahmed H. Hamdullah

Volume 28, Issue 2 , January 2010, Page 236-252

https://doi.org/10.30684/etj.28.2.2

Abstract
  The conventional remotely-sensed satellite imagery is suited for regionalinvestigations in areas of good exposures which are reduced in southern Iraq due tovegetation, water – ...  Read More ...
Spectral Method and B- Spline Functions for Approximate Solution of Optimal Control Problem
Spectral Method and B- Spline Functions for Approximate Solution of Optimal Control Problem

Saba S. Hassen

Volume 28, Issue 2 , January 2010, Page 253-260

https://doi.org/10.30684/etj.28.2.3

Abstract
  In this paper an efficient algorithm is proposed, which is based on applying the ideaof spectral method using the B-spline polynomials to find an approximate solution offinite quadratic ...  Read More ...
Proposed Enhancement algorithm for Company Employers Management using Genetic Algorithm in Data Mining
Proposed Enhancement algorithm for Company Employers Management using Genetic Algorithm in Data Mining

Dalia Nabeel Kamal

Volume 28, Issue 2 , January 2010, Page 261-270

https://doi.org/10.30684/etj.28.2.4

Abstract
  Data mining is a process of automatically discovering useful information inlarge data repositories that uses a variety of data analysis tools to discover patternsand relationships that ...  Read More ...
BSA: A Hybrid Bees’ Simulated Annealing Algorithm To Solve Optimization & NP-Complete Problems
BSA: A Hybrid Bees’ Simulated Annealing Algorithm To Solve Optimization & NP-Complete Problems

Ahmed Tariq Sadiq; Amaal Ghazi Hamad

Volume 28, Issue 2 , January 2010, Page 271-281

https://doi.org/10.30684/etj.28.2.5

Abstract
  Swarm-based algorithms such as Bees Algorithm BA have proven to be verypowerful computational techniques due to their search capabilities. Other methodswhich are useful in diverse application ...  Read More ...
The Effect of Artificial Aging on Mechanical Properties of Metal Matrix Composite
The Effect of Artificial Aging on Mechanical Properties of Metal Matrix Composite

Jenan S. Kashan

Volume 28, Issue 2 , January 2010, Page 282-288

https://doi.org/10.30684/etj.28.2.6

Abstract
  Recently the use of the composite material based on aluminum alloys matrix isincreased because of their good mechanical properties and light weight.In this work the addition of % SiC ...  Read More ...
Mechanical Properties of The Modified Al-12%Si Alloy Reinforced by Ceramic Particles
Mechanical Properties of The Modified Al-12%Si Alloy Reinforced by Ceramic Particles

Haitham Razouqi Saleh

Volume 28, Issue 2 , January 2010, Page 289-300

https://doi.org/10.30684/etj.28.2.7

Abstract
  The aluminum alloys are important in many industrial applicationsbecause of their light weight and good mechanical properties. For this reasonmany researches had been done to enhance ...  Read More ...
Study the Properties of Silicon Nanocrystallites Prepared By Wet Etching
Study the Properties of Silicon Nanocrystallites Prepared By Wet Etching

Mukkaram A. fakhery

Volume 28, Issue 2 , January 2010, Page 301-306

https://doi.org/10.30684/etj.28.2.8

Abstract
  This work presents the formation of porous silicon by photo-electrochemicalprocesses using diode laser 514 nm, 2mW, under different etching times. The timedependence of porosity values, ...  Read More ...
The Study of the magnetic modes and Quality Factor in the Gyrotron Tube
The Study of the magnetic modes and Quality Factor in the Gyrotron Tube

Luma Y. Abbas; A. N. Mohammed

Volume 28, Issue 2 , January 2010, Page 307-313

https://doi.org/10.30684/etj.28.2.9

Abstract
  This paper involves the study of quality factor as a function of (D/L), where Dis the cavity diameter and L is the cavity length (cm unit) of cylindrical cavity ingyrotron tube. In ...  Read More ...
Morphological Aspects of Oxidized Porous Silicon Prepared by Photo Electrochemical Etching
Morphological Aspects of Oxidized Porous Silicon Prepared by Photo Electrochemical Etching

Ali A. A; Zahraa S. Ahmed; Alwan M. Alwan

Volume 28, Issue 2 , January 2010, Page 314-321

https://doi.org/10.30684/etj.28.2.10

Abstract
  This paper reports morphological properties of porous silicon and oxidizedporous silicon, prepared by photo electrochemical etching from n-type silicon wafers asa function of experimental ...  Read More ...
Bond Strength-Splice Length in Concrete Beams Confined by Transverse Reinforcement
Bond Strength-Splice Length in Concrete Beams Confined by Transverse Reinforcement

Sameh Badry Tobeia Shuker

Volume 28, Issue 2 , January 2010, Page 322-339

https://doi.org/10.30684/etj.28.2.11

Abstract
  This work aim to study the effect of transverse reinforcement , area of splicebar, concrete cover thickness , rib area and the increasing in concrete strength (highstrengthconcrete) ...  Read More ...
Nonlinear Finite Element Analysis of Laterally Loaded Piles in Cohesive Sediments
Nonlinear Finite Element Analysis of Laterally Loaded Piles in Cohesive Sediments

Tahsin M. Toma

Volume 28, Issue 2 , January 2010, Page 340-355

https://doi.org/10.30684/etj.28.2.12

Abstract
  Laterally loaded single piles are usually analyzed by methods deriveddirectly from the classical beam on elastic foundation or Winkler soil model. Soilstrength is characterized using ...  Read More ...
Multi Focus Image Fusion Using Statistical Approaches
Multi Focus Image Fusion Using Statistical Approaches

Rana F. Ghani; Abdulameer A. Kareem

Volume 28, Issue 2 , January 2010, Page 356-368

https://doi.org/10.30684/etj.28.2.13

Abstract
  Pictures of the long focal lengths cameras, suffer from the problem of limiteddepth of field. Consequently, it is often difficult to obtain good focus for allobjects in the picture. ...  Read More ...
Solving Second Order Non-Linear Boundary Value Problems by Four Numerical Methods
Solving Second Order Non-Linear Boundary Value Problems by Four Numerical Methods

afar Mohamad; Anwar Ja

Volume 28, Issue 2 , January 2010, Page 369-381

https://doi.org/10.30684/etj.28.2.14

Abstract
  The boundary value problems for the 2nd order non-linear ordinarydifferential equations are solved by using four numerical methods. Thesenumerical methods are Rung-Kutta of 4th order, ...  Read More ...
Generate Random Image-Key using Hash Technique
Generate Random Image-Key using Hash Technique

Nidaa F. Hassan; Akbas E. Ali; Teaba Wala Aldeen

Volume 28, Issue 2 , January 2010, Page 382-398

https://doi.org/10.30684/etj.28.2.15

Abstract
  Random image is very useful to be used as a source for clipping randomnesssession keys in cryptography. In this paper a new algorithm is proposed to generaterandom image .The random ...  Read More ...
Performance Study of a Modified Sine Wave Inverter
Performance Study of a Modified Sine Wave Inverter

Jamal A. Mohammed

Volume 28, Issue 2 , January 2010, Page 399-415

https://doi.org/10.30684/etj.28.2.16

Abstract
  This paper presents the performance of a modified sine wave voltage sourceinverter with duty cycle. Evaluation of quality factors like the Total HarmonicDistortion THD of the output ...  Read More ...
The Influence of Water Injection on Two - Shaft Gas Turbine Performance with Regeneration
The Influence of Water Injection on Two - Shaft Gas Turbine Performance with Regeneration

Muthana K. Aldoory

Volume 28, Issue 2 , January 2010, Page 416-430

https://doi.org/10.30684/etj.28.2.17

Abstract
  A two-shaft gas turbine type GT-85-2-H has been modified and convertedinto a research unit. The main modifications consist of incorporating regenerationsystem and water spray system ...  Read More ...