Studying the Optical Properties Cadmium Stunet Cd2SnO4 Thin Films Prepared by Spray Pyrolysis Technique
Studying the Optical Properties Cadmium Stunet Cd2SnO4 Thin Films Prepared by Spray Pyrolysis Technique

Alaalddin Abdullah AI-Nuaimi; Muslim Fadhel. Al-Zubaidi; Zahraa Hussain

Volume 27, Issue 14 , October 2009, Page 445-456

https://doi.org/10.30684/etj.27.14.15

Abstract
  Cd2SnO4 thin films have been prepared by Spray pyrolysis on glasses slides of ( 0.2 M ) from (CdCl2.2H2O) and (0.2 M,0.1 M)from(SnCl4.5H2O) . Some films are prepared in different temperatures ...  Read More ...
Study the Mechanical Properties of Al-glass Composite
Study the Mechanical Properties of Al-glass Composite

Thikra Mahdi. Ali

Volume 27, Issue 14 , October 2009, Page 457-466

https://doi.org/10.30684/etj.27.14.16

Abstract
  The present research aimed at studying the effect of (1, 3, 5 ) Wt % addition of glass particles on the mechanical and wear resistance of the pure Aluminum. All samples were prepared ...  Read More ...
Effect of Zirconia (ZrO2) Addition on Some Characteristics of Iraqi Bauxite Refractories
Effect of Zirconia (ZrO2) Addition on Some Characteristics of Iraqi Bauxite Refractories

Shehab Ahmed Al-jubouri; Intisar Mohammed Khudair. Al-Badrani

Volume 27, Issue 14 , October 2009, Page 467-483

https://doi.org/10.30684/etj.27.14.17

Abstract
  Use Iraqi Bauxite (64.2%) Alumina was calculated at (1400 oC ) and Graingradient limited after add kaolin and Sodium Silicate to increase compaction bauxite grain and then addition ...  Read More ...
Study of Wear Sliding For Dezincification of Brass
Study of Wear Sliding For Dezincification of Brass

Mohammed Saeed Waheed; Hanaa Arir Smeig

Volume 27, Issue 14 , October 2009, Page 484-499

https://doi.org/10.30684/etj.27.14.18

Abstract
  Given the emergence of cracks in a high proportion of clay product in the production phase of the plant Blocks in the laboratory Abu- Nuass which was reflected in the increase of damage ...  Read More ...
Thermal Annealing of the CdO/Si Hybrid Impulse Impregnated by Pulsed Iaser Deposition
Thermal Annealing of the CdO/Si Hybrid Impulse Impregnated by Pulsed Iaser Deposition

Makram AbdulMuttalib

Volume 27, Issue 14 , October 2009, Page 500-506

https://doi.org/10.30684/etj.27.14.19

Abstract
  In the present work, enhancement of the electrical and photovoltaic properties of CdO/ Si heterojunction device has been carried out. This has done by using classical thermal annealing ...  Read More ...
Wear Resistance for Thermosetting Polymer Blend
Wear Resistance for Thermosetting Polymer Blend

Belqis Mohammed. Dhia; Huda Jabbar Abdul-Hussein

Volume 27, Issue 14 , October 2009, Page 507-516

https://doi.org/10.30684/etj.27.14.20

Abstract
  The research involves using Epoxy ,Unsaturated Polyester and Novolac resins ;they were needed to prepare ternary polymer blends; wear resistance including change load applied, sliding ...  Read More ...
Electrical and Electronical Properties of Silicon Nanostructure Produced by Electronical Etching
Electrical and Electronical Properties of Silicon Nanostructure Produced by Electronical Etching

B. G. Rasheed; E. T. Saleem

Volume 27, Issue 14 , October 2009, Page 2523-2530

https://doi.org/10.30684/etj.27.14.1

Abstract
  Porous silicon constituting silicon nanostructures layer have been produce on crystal silicon using different preparation condition in electronical etching process. The electrical properties ...  Read More ...
An Experimental Study Into The Effect Of Temperature And Pressure on The Hydraulic System
An Experimental Study Into The Effect Of Temperature And Pressure on The Hydraulic System

Jafar M. Hassan; Saif Yousif Ibrahim

Volume 27, Issue 14 , October 2009, Page 2531-2545

https://doi.org/10.30684/etj.27.14.2

Abstract
  The present work is conducted in order to study the effect of oiltemperature and pressure variation on the hydraulic system performance at various ranges of temperature and pressure. ...  Read More ...
Soft Clay Soil Improvement Using Stone Columns and Dynamic Compaction Techniques
Soft Clay Soil Improvement Using Stone Columns and Dynamic Compaction Techniques

Hussein H. Karim; Mohammad M. Mahmood; Raida G. Renka

Volume 27, Issue 14 , October 2009, Page 2546-2565

https://doi.org/10.30684/etj.27.14.3

Abstract
  Soft clays are widely spread in Iraq particularly in its southern Mesopotamian plain. As many sites within these regions may be used for vital projects; an adequate solution has been ...  Read More ...
Rate-Based Model In Bubble-Cup Batch Distillation Column
Rate-Based Model In Bubble-Cup Batch Distillation Column

Nada B. Nakkash; Neran K. Ibrahim; Salah S. Ibrahim

Volume 27, Issue 14 , October 2009, Page 2566-2583

https://doi.org/10.30684/etj.27.14.4

Abstract
  The present work concerned with studying the behavior of batchmulticomponent plate distillation tower using Rate-Base model (Non-Equilibrium model) theoretically and experimentally. ...  Read More ...
An Automated Assembly Sequence Planning System
An Automated Assembly Sequence Planning System

Saleh J. Fendi Al-Saadi

Volume 27, Issue 14 , October 2009, Page 2584-2594

https://doi.org/10.30684/etj.27.14.5

Abstract
  In this paper, a methodology called ASPS (computer-aided AssemblySequence Planning System) was developed to incorporate making decisions on process planning and production planning ...  Read More ...
Chattering Attenuation of Sliding Mode Controller Using Genetic Algorithm and Fuzzy Logic Techniques
Chattering Attenuation of Sliding Mode Controller Using Genetic Algorithm and Fuzzy Logic Techniques

Farzdaq R. Yasien; Mina Q. Kadhim

Volume 27, Issue 14 , October 2009, Page 2595-2610

https://doi.org/10.30684/etj.27.14.6

Abstract
  Sliding Mode Controller design provides a systematic approach to theproblem of maintaining stability and consistent performance in the face of modeling imprecision. The major drawback ...  Read More ...
The Effect of Boundary Air Flow on Premixed Stationary Burning Velocity
The Effect of Boundary Air Flow on Premixed Stationary Burning Velocity

Ali Rasool M. Al-Zubaidi

Volume 27, Issue 14 , October 2009, Page 2611-2623

https://doi.org/10.30684/etj.27.14.7

Abstract
  In this study the effect of boundary condition on premixed methane-airstationary Bunsen flames has been experimentally investigated. Laminar burning velocity is calculated by the concentrated ...  Read More ...
Ehrhart Polynomials of a Cyclic Polytopes
Ehrhart Polynomials of a Cyclic Polytopes

Shatha Assaad Salman; Fatema Ahmed Sadeq

Volume 27, Issue 14 , October 2009, Page 2624-2631

https://doi.org/10.30684/etj.27.14.8

Abstract
  Computing the volume of a polytope in Rn is a very important subject indifferent areas of mathematic. A pplications range from the very pure (number theory, toric Hilbert functions, ...  Read More ...
Influence of Post- Annealing on The Properties of Cuxs: Al, Fe Films Deposited By C B D
Influence of Post- Annealing on The Properties of Cuxs: Al, Fe Films Deposited By C B D

Ali M . Mousa; Abbas F. Sabbar

Volume 27, Issue 14 , October 2009, Page 2632-2641

https://doi.org/10.30684/etj.27.14.9

Abstract
  Thin films of copper sulfide (CuxS) were deposited at room temperature on glass substrates from solution containing copper (II) chloride, triethanolamine, and thiourea at appropriate ...  Read More ...
Chebyshev Polynomials and Spectral Method for Optimal Control Problem
Chebyshev Polynomials and Spectral Method for Optimal Control Problem

Suha Najeeb Shihab; Jabbar Abed Eleiwy

Volume 27, Issue 14 , October 2009, Page 2642-2652

https://doi.org/10.30684/etj.27.14.10

Abstract
  This paper presents efficient algorithms which are based on applying the idea of spectral method using the Chebyshev polynomials: including Chebyshev polynomials of the first kind, ...  Read More ...
Optical and Structure Properties of MgxZn1-xO Thin Films by Pulsed Laser Deposition
Optical and Structure Properties of MgxZn1-xO Thin Films by Pulsed Laser Deposition

Adawiya J. Haidar; Gehan E. Simon

Volume 27, Issue 14 , October 2009, Page 2653-2665

https://doi.org/10.30684/etj.27.14.11

Abstract
  In this study, the optical and structure properties of MgxZn1-xO thin films is reported. The MgxZn1-xO thin films were prepared on Glass substrates by Q-switch second harmonic Nd:YAG ...  Read More ...
Development of A Four Arms Viscoelasic Damper And Its Application To A Heavy Floor Vibration Due To Walking Excitation
Development of A Four Arms Viscoelasic Damper And Its Application To A Heavy Floor Vibration Due To Walking Excitation

Adnan D. Mohammed

Volume 27, Issue 14 , October 2009, Page 2666-2681

https://doi.org/10.30684/etj.27.14.12

Abstract
  High levels of unwanted vibrations are normally occur in light, and (or) long span floor systems due to human activities such as walking or jumping. It causes annoyance and discomfort ...  Read More ...
Increasing the Conductivity of Cadmium Telluride Films
Increasing the Conductivity of Cadmium Telluride Films

Muslm Fadhel Al-Zubadi; Waseem Najeeb Ibrahim

Volume 27, Issue 14 , October 2009, Page 2682-2691

https://doi.org/10.30684/etj.27.14.13

Abstract
  The structural , optical and electrical properties of vacuum-evaporated CdTe thin films were investigated as a function of post-deposition annealing without and with CdCl2 treatment ...  Read More ...
Numerical Study Of Turbulent Natural Convection In An Enclosure With Localized Heating From Left Side
Numerical Study Of Turbulent Natural Convection In An Enclosure With Localized Heating From Left Side

Ali L. Ekaid

Volume 27, Issue 14 , October 2009, Page 2692-2710

https://doi.org/10.30684/etj.27.14.14

Abstract
  In this work, a numerical study is performed to predict the solution of buoyancy turbulent flow and heat transfer inside a square cavity with localized heating from the left side wall. ...  Read More ...