Stadying mechanical properties for polyethylene composites rein for by fish shell particles
Stadying mechanical properties for polyethylene composites rein for by fish shell particles
Volume 29, Issue 15 , November 2011, Page 607-620

https://doi.org/10.30684/etj.29.15.18

Abstract
  In this research we use both High Density Polyethylene (HDPE), and Low Density Polyethylene (LDPE)were used as matrix to the composite material and fish shell particles were used as ...  Read More ...
Study Relationship Between The Dimensional Change – Temperature and Carburizing Time of Low Carbon Steel By Using (C#2008) Programming Language
Study Relationship Between The Dimensional Change – Temperature and Carburizing Time of Low Carbon Steel By Using (C#2008) Programming Language
Volume 29, Issue 15 , November 2011, Page 621-634

https://doi.org/10.30684/etj.29.15.19

Abstract
  In this paper a program was build by (C#2008) programming language to calculate a dimensional change in specimens of low carbon steel during solid carburizing process. The chemical ...  Read More ...
Study of Some Structural , Optical Properties of Copper Oxide Thin Films Deposited by Chemical Spray Pyrolysis Method
Study of Some Structural , Optical Properties of Copper Oxide Thin Films Deposited by Chemical Spray Pyrolysis Method
Volume 29, Issue 15 , November 2011, Page 635-649

https://doi.org/10.30684/etj.29.15.20

Abstract
  In this research we prepared copper oxide thin films by Spray pyrolysis method with various salts such as ( acetate, nitrate & copper chloride (0.1 M) and study its structural and ...  Read More ...
Experimental Determination of Drag Coefficient on Different Automobiles Geometry
Experimental Determination of Drag Coefficient on Different Automobiles Geometry

Abdulhassan A.Karamallah; Abdessamed Kacem Wahab

Volume 29, Issue 15 , November 2011, Page 3043-3057

https://doi.org/10.30684/etj.29.15.1

Abstract
  The undertaken research deals with an experimental determination of drag coefficient for five car models. Experiments were run within a subsonic aspiration wind tunnel, covering an ...  Read More ...
Preparation of Silver Nanoparticles by Pulsed Laser Ablation in Liquid Medium
Preparation of Silver Nanoparticles by Pulsed Laser Ablation in Liquid Medium

Abdulrahman Khalaf Ali; Dayah N. Raouf

Volume 29, Issue 15 , November 2011, Page 3058-3066

https://doi.org/10.30684/etj.29.15.2

Abstract
  Silver nanoparticles were synthesized by pulsed laser ablation (Q-switched Nd:YAG, ë=1064nm, 10 ns pulse duration and E=100-900 mJ) of pure Ag metal plate immersed in double distilled ...  Read More ...
Synthesis, Structural and Biological Studies of /3-(1, 3- benzothiazol-2-yl) - /4H- spiro[indole2,3-[1,3]thiazolidine]- 2,/4(1H) dion with Cr (III), Mn (II), Co (II), Ni (II), Cu (II), and Zn (II) ions
Synthesis, Structural and Biological Studies of /3-(1, 3- benzothiazol-2-yl) - /4H- spiro[indole2,3-[1,3]thiazolidine]- 2,/4(1H) dion with Cr (III), Mn (II), Co (II), Ni (II), Cu (II), and Zn (II) ions

Rehab A.M. Al-Hasani; Sinan M.M. Al-byatti; Sarab M.S. Al Azawi

Volume 29, Issue 15 , November 2011, Page 3067-3078

https://doi.org/10.30684/etj.29.15.3

Abstract
  This paper describes the synthesis of a new derivative 3-(1,3- benzothiazol-2-yl)- /4H- spiro[indole2,3-[1,3]thiazolidine]-2,/4(1H) dion [L], which have been obtained from the cyclization ...  Read More ...
Simulation of Deep Excavation in Sand by Finite Element Using Hardening Soil Model (HSM)
Simulation of Deep Excavation in Sand by Finite Element Using Hardening Soil Model (HSM)

Zuhair Abd Hacheem

Volume 29, Issue 15 , November 2011, Page 3079-3096

https://doi.org/10.30684/etj.29.15.4

Abstract
  Deep excavation is very important problem in geotechnical engineering and use in construction of tunnel and underground structure. This paper study the deep excavation using Plaxis ...  Read More ...
Exploring Turbulent Effects on Spray Evaporation Modeling
Exploring Turbulent Effects on Spray Evaporation Modeling

Noor M. Jasim

Volume 29, Issue 15 , November 2011, Page 3097-3107

https://doi.org/10.30684/etj.29.15.5

Abstract
  In this work, numerical investigations are conducted for diesel spray under evaporating conditions. The Eulerian-Eulerian framework of evaporating turbulent spray is presented in terms ...  Read More ...
A Confined Flow over a Cylinder by the Finite Element and the Finite Difference Methods
A Confined Flow over a Cylinder by the Finite Element and the Finite Difference Methods

Ahlam Sadir Mohammed

Volume 29, Issue 15 , November 2011, Page 3108-3117

https://doi.org/10.30684/etj.29.15.6

Abstract
  The Finite element and the finite difference methods were applied to a confined flow over a cylinder. The values of velocity potential (F), the stream function (Y) and the velocity ...  Read More ...
The Geometrical Analysis Accuracy for Parallel Robotic Mechanisms
The Geometrical Analysis Accuracy for Parallel Robotic Mechanisms

Hassan M. Alwan

Volume 29, Issue 15 , November 2011, Page 3118-3129

https://doi.org/10.30684/etj.29.15.7

Abstract
  The geometrical analysis of the robotic mechanisms means the formulation of the position equation of the mechanism in terms of dependent and independent coordinates. This function should ...  Read More ...
Effect of Using Local Sand Filter on Increasing Efficiency of Treatment Wastewater in Iraq
Effect of Using Local Sand Filter on Increasing Efficiency of Treatment Wastewater in Iraq

Suhair Mohammed Hassan Yaseen

Volume 29, Issue 15 , November 2011, Page 3130-3140

https://doi.org/10.30684/etj.29.15.8

Abstract
  Sand filtration has been an effective wastewater treatment process for control of contaminates. Sand filters are very economic treatment and do not need constant operator attention, ...  Read More ...
Study the Microbiologically Influenced Corrosion of Carbon Steel
Study the Microbiologically Influenced Corrosion of Carbon Steel

Zuheir T.Khulief.Al-Tai

Volume 29, Issue 15 , November 2011, Page 3141-3157

https://doi.org/10.30684/etj.29.15.9

Abstract
  The main objective of this study was to evaluate the microbiologically influenced corrosion of carbon steel in water, samples of water taken from Al-Hilla rivers and distill water (control ...  Read More ...
Color Images Hiding Based on Wavelet Based Fusion
Color Images Hiding Based on Wavelet Based Fusion

Saddam Kamil Alwane

Volume 29, Issue 15 , November 2011, Page 3158-3171

https://doi.org/10.30684/etj.29.15.10

Abstract
  At present, information is being communicated and proceeds automatically on a large scale. Hence, the required measures for secure storage and transporting of the information are increased. ...  Read More ...
New Design of Optical Filters Based on Single Mode-Multimode-Single Mode Fiber Structure for Optical Fiber Communication Systems
New Design of Optical Filters Based on Single Mode-Multimode-Single Mode Fiber Structure for Optical Fiber Communication Systems

Jassim Kadim Hmood

Volume 29, Issue 15 , November 2011, Page 3172-3184

https://doi.org/10.30684/etj.29.15.11

Abstract
  In this paper, a design of optical filters based on single mode-multimode-single mode fiber structure (SMS) is demonstrated. The multimode interference effect can be utilized to design ...  Read More ...
Omnidirectional Mirrors for Porous Silicon Multilayer by Electrochemical Etching
Omnidirectional Mirrors for Porous Silicon Multilayer by Electrochemical Etching

Uday Muhsin Nayef

Volume 29, Issue 15 , November 2011, Page 3185-3193

https://doi.org/10.30684/etj.29.15.12

Abstract
  The measurements and calculations of monolayer and multilayer reflectance, made of porous silicon films, have been carried out. The multilayer component has been made of porous silicon ...  Read More ...
Studying the Effect of Chemical Solution on Corrosion Behavior of SiC and Al2O3 Reinforced Aluminum Composite Materials
Studying the Effect of Chemical Solution on Corrosion Behavior of SiC and Al2O3 Reinforced Aluminum Composite Materials

Nervana A. Abd Alameer

Volume 29, Issue 15 , November 2011, Page 3194-3203

https://doi.org/10.30684/etj.29.15.13

Abstract
  Corrosion behavior of aluminum matrix composites (MMCs) with (10, 20 &30) weight fraction of each alumina and silicon carbide was investigated in 10% (NaCl, NaOH &HCl) solutions ...  Read More ...
Linear Graded Refractive Index Antireflection Coatings For Silicon Substrate
Linear Graded Refractive Index Antireflection Coatings For Silicon Substrate

Muhammed Abdulredha Husein

Volume 29, Issue 15 , November 2011, Page 3204-3210

https://doi.org/10.30684/etj.29.15.14

Abstract
  In this work, a theoretical study of linear profile for graded antireflection coating has been used with silicon as substrate. A computer program has been designated using the basic ...  Read More ...
The Characteristics of Vortex Spray Countercurrent Mass Exchange Device (VSCMED)
The Characteristics of Vortex Spray Countercurrent Mass Exchange Device (VSCMED)

Sklabinskyy Vsevolod Ivanovych; Abdullah Jalal Mohammed; Mohammed Nahdim Gasim

Volume 29, Issue 15 , November 2011, Page 3211-3223

https://doi.org/10.30684/etj.29.15.15

Abstract
  The article contains the results of the efficiency research of vortex dispersing countercurrent mass exchange device performance. There are recommendations given on the basis of analysis ...  Read More ...
Improvement of Ballast Embankment Resting on Soft Clay by Reed and Asphalt Layers
Improvement of Ballast Embankment Resting on Soft Clay by Reed and Asphalt Layers

Namir.K.S. AL-Saoudi; Falah H. Rahil; Kawther Y.H. AL-Soudany

Volume 29, Issue 15 , November 2011, Page 3224-3241

https://doi.org/10.30684/etj.29.15.16

Abstract
  The present paper investigates the possibility of using reed and /or asphalt as stabilizing materials for ballast model embankment overlaying a bed of soft soil. Four model tests were ...  Read More ...
Speaker Identification Using Wavelet Transform and Artificial Neural Network
Speaker Identification Using Wavelet Transform and Artificial Neural Network

Manal Hadi Jaber

Volume 29, Issue 15 , November 2011, Page 3242-3255

https://doi.org/10.30684/etj.29.15.17

Abstract
  This paper presents an effective method for improving the performance of speaker identification system based on schemes combines the multi resolution properly of the wavelet transform ...  Read More ...