Simulation Study and Comparison Green Freeze Technology Utilizing with Theory of Different Adsorption Working Pairs of Solar Adsorption Refrigeration
Simulation Study and Comparison Green Freeze Technology Utilizing with Theory of Different Adsorption Working Pairs of Solar Adsorption Refrigeration

Faiza Mahdi Hadi

Volume 30, Issue 3 , January 2012, Page 84-97

https://doi.org/10.30684/etj.30.3.15

Abstract
  In this research a study of the theory of six different adsorption pairs to check and choose the best adsorption pair in terms of adsorption capacity and the effect of high and low ...  Read More ...
Three Dimensional Simulation of Supersonic Flow over Missiles of Different Shapes
Three Dimensional Simulation of Supersonic Flow over Missiles of Different Shapes

Jalal M. Jalil; Hussain H. Al-Kayiem; Ahmed Kadhim Hussein

Volume 30, Issue 3 , January 2012, Page 325-343

https://doi.org/10.30684/etj.30.3.1

Abstract
  In this work, a three-dimensional primitive variable of supersonic flow over missiles was computed based on finite difference computational fluid dynamic methods. The problem was considered ...  Read More ...
Removal of Iron (II) from Wastewater by Locally Prepared of Activated Carbon
Removal of Iron (II) from Wastewater by Locally Prepared of Activated Carbon

Luma H. Mohmoud

Volume 30, Issue 3 , January 2012, Page 344-353

https://doi.org/10.30684/etj.30.3.2

Abstract
  The use of low-cost activated carbon derived from reed, an agricultured waste material, has been investigated for the removed of Fe (II) from wastewater, using batch method. The influences ...  Read More ...
Study of Some Physical Behavior for Polycarbonate In Two Different Solvents at Room Temperature
Study of Some Physical Behavior for Polycarbonate In Two Different Solvents at Room Temperature

Khalid Mershed E; Raouf Mahmood Raouf; Harith Hasoon Jasim

Volume 30, Issue 3 , January 2012, Page 354-363

https://doi.org/10.30684/etj.30.3.3

Abstract
  The goal of this research was to study some Rheological and optical properties of poly carbonate in (chloroform and toluene) with different concentrations to know the physical behavior ...  Read More ...
A Fuzzy Interface System to Predict Ultimate Strength of Circular Concrete Filled Steel Tubular Columns
A Fuzzy Interface System to Predict Ultimate Strength of Circular Concrete Filled Steel Tubular Columns

Kadhim Zuboon Nasser

Volume 30, Issue 3 , January 2012, Page 364-377

https://doi.org/10.30684/etj.30.3.4

Abstract
  In this study, a model for predicting the ultimate strength of circular concrete filled steel tubular columns (CCFST) under axial loads has been developed using fuzzy inference system ...  Read More ...
Excitation Control of Synchronous Generator Via Neural Network Based Controllers
Excitation Control of Synchronous Generator Via Neural Network Based Controllers

Ekhlas M. Thajeel

Volume 30, Issue 3 , January 2012, Page 378-397

https://doi.org/10.30684/etj.30.3.5

Abstract
  Modern power systems are complex and non-linear and their operating can vary over a wide range. This paper presents a linear mathematical model of the synchronous generator to control ...  Read More ...
Experimental and Numeriacal Study of Moisture Moviment Inside an Air Conditioned Space
Experimental and Numeriacal Study of Moisture Moviment Inside an Air Conditioned Space

Wahid S. Mohammad; Omar M. Mohamme

Volume 30, Issue 3 , January 2012, Page 398-415

https://doi.org/10.30684/etj.30.3.6

Abstract
  This research is concerned with a computational study to simulate a turbulent three –dimensional buoyancy recirculation flow in an air-conditioned space. The study includes the ...  Read More ...
Influence of Substrate Temperature on Structure and Optical Properties of CdO Thin Films Prepared By Pulsed Laser Deposition
Influence of Substrate Temperature on Structure and Optical Properties of CdO Thin Films Prepared By Pulsed Laser Deposition

Muhanad Adel; Khaled Z.Yahya

Volume 30, Issue 3 , January 2012, Page 416-425

https://doi.org/10.30684/etj.30.3.7

Abstract
  Nanocrystallites of cadmium oxide (CdO) thin films were deposited by pulsed laser deposition technique on glass substrates using Nd:YAG laser at 532nm wave length. X-ray diffraction ...  Read More ...
Shock Wave Capturing Numerically in Two Dimensional Supersonic Wind Tunnel for Different Configuration
Shock Wave Capturing Numerically in Two Dimensional Supersonic Wind Tunnel for Different Configuration

Ahmed Fouad Mahdi

Volume 30, Issue 3 , January 2012, Page 426-442

https://doi.org/10.30684/etj.30.3.8

Abstract
  Numerical solutions of two dimensional Euler equations are obtained for transonic and supersonic flows. The shock capturing method is employed to solve compressible Euler equations ...  Read More ...
Modification of Diffie–Hellman Key Exchange Algorithm for Zero Knowledge Proof
Modification of Diffie–Hellman Key Exchange Algorithm for Zero Knowledge Proof

Mahmood Khalel Ibrahim

Volume 30, Issue 3 , January 2012, Page 443-453

https://doi.org/10.30684/etj.30.3.9

Abstract
  Networks and entity groupings requires entity authentication while preserving the privacy of the entity being authenticated. Zero-Knowledge Proof (ZKP) plays an important role in authentication ...  Read More ...
Fuzzy-Swarm Controller for Automatic Voltage Regulator of Synchronous Generator
Fuzzy-Swarm Controller for Automatic Voltage Regulator of Synchronous Generator

Abdulrahim Thiab Humod; Wisam Najm Al-Din Abed

Volume 30, Issue 3 , January 2012, Page 454-473

https://doi.org/10.30684/etj.30.3.10

Abstract
  The main objective of this work is to propose Artificial Intelligence (AI) controller to enhance the performance of Automatic Voltage Regulator (AVR) of a Synchronous Generator (SG) ...  Read More ...
LDPC Error Floor Improvement
LDPC Error Floor Improvement

Aseel Hameed Majeed

Volume 30, Issue 3 , January 2012, Page 474-488

https://doi.org/10.30684/etj.30.3.11

Abstract
  The error-correcting performance of low-density parity check (LDPC) codes, when decoded using practical iterative decoding algorithms, is known to be close to Shannon limits. In this ...  Read More ...
Experimental Study on Boiler Scales Cleaning Using Hydrochloric and Citric Acids
Experimental Study on Boiler Scales Cleaning Using Hydrochloric and Citric Acids

Dina Raheem; Janet Lazer

Volume 30, Issue 3 , January 2012, Page 489-499

https://doi.org/10.30684/etj.30.3.12

Abstract
  The effect of hydrochloric acid and citric acid was studied experimentally for boiler chemical cleaning to determine the dissolved scale by using carbon steel samples of water-side ...  Read More ...
Evaluation of Crude Anthrax Protective Antigen as an Adjutant For Brucella Abortus Vaccine In Mice
Evaluation of Crude Anthrax Protective Antigen as an Adjutant For Brucella Abortus Vaccine In Mice

Inam Jasim Lafta

Volume 30, Issue 3 , January 2012, Page 500-511

https://doi.org/10.30684/etj.30.3.13

Abstract
  Anthrax crude protective antigen (PA) was used in this study as an adjutant with Brucella abortus S19 strain vaccine in a ratio of 1:1 to immunize mice in dose of 0.1 ml s/c in order ...  Read More ...
Construction of Railway Track Using Asphalt – Ballast Layer
Construction of Railway Track Using Asphalt – Ballast Layer

Kawther Y.H.AL-Soudany

Volume 30, Issue 3 , January 2012, Page 512-528

https://doi.org/10.30684/etj.30.3.14

Abstract
  The work presented in this paper focuses on new trends in the construction of rail track using asphalt ballast layer. Model tests were performed with ballast layer 150mm or 200mm. These ...  Read More ...