Design and Implementation of Secure Public Key Steganography
Design and Implementation of Secure Public Key Steganography

Ghadah Salim Mouhamad; Alia Karim Abdul Hassan

Volume 28, Issue 3 , January 2010, Page 431-444

https://doi.org/10.30684/etj.28.3.1

Abstract
  Several approaches and techniques have been proposed to makecommunication via the internet secure; one of these approaches is steganography.Steganography is the art and science of hiding ...  Read More ...
Enhancement of Guidance System using Kalman Filter
Enhancement of Guidance System using Kalman Filter

Yasser Nabeel I. Abdulbaki

Volume 28, Issue 3 , January 2010, Page 445-454

https://doi.org/10.30684/etj.28.3.2

Abstract
  The operation of Modern Guidance System may be separated into twocascaded functions1. Filtering of the noisy measurements obtained from the sensors and 2. Utilization ofthe estimated ...  Read More ...
Practical Study for Investigation Proportional Pressure Relief Valve (DBETR-1X/25) Performance
Practical Study for Investigation Proportional Pressure Relief Valve (DBETR-1X/25) Performance

Majid A. Oleiwi

Volume 28, Issue 3 , January 2010, Page 455-465

https://doi.org/10.30684/etj.28.3.3

Abstract
  The trend in hydraulic power applications is to improve efficiency andperformance of hydraulic systems parts. This paper examines the performances ofdirect operated proportional pressure ...  Read More ...
Shifted Chybeshev Polynomials for a Certain System of Fractional Order Integro-Differential Equations
Shifted Chybeshev Polynomials for a Certain System of Fractional Order Integro-Differential Equations

Ahmed M. Shuker

Volume 28, Issue 3 , January 2010, Page 466-476

https://doi.org/10.30684/etj.28.3.4

Abstract
  The main goal of this paper lies briefly in submitting and modifying somenumerical methods for solving system of linear Fractional order Integro- DifferentialEquations of Fredholm type ...  Read More ...
Logical Twofold Integral
Logical Twofold Integral

Jabbar Abbas Ghafil

Volume 28, Issue 3 , January 2010, Page 477-483

https://doi.org/10.30684/etj.28.3.5

Abstract
  The aim of this paper is to present a new framework for studying capacities andtwofold integral from a point of view of two-valued logic. In this framework, wepropose equivalent definitions ...  Read More ...
Optimization and Control of Acation Exchanger :1- Steady State Optimization
Optimization and Control of Acation Exchanger :1- Steady State Optimization

Ghanim M. Alwan; Layla A. A. Ahmed; Ahlam. S. Maroof; Abeer S. Mahmod

Volume 28, Issue 3 , January 2010, Page 484-491

https://doi.org/10.30684/etj.28.3.6

Abstract
  The effect of process variables on the recovery of hardness from water byacation exchanger was studied. At steady state the process could be represented bysecond order nonlinear emperical ...  Read More ...
Approximate Solutions of Barker Equation in Parabolic Orbits
Approximate Solutions of Barker Equation in Parabolic Orbits

Mohammed S. Rasheed

Volume 28, Issue 3 , January 2010, Page 492-499

https://doi.org/10.30684/etj.28.3.7

Abstract
  The basic motivation of this paper is to apply the Horner‘s method to performthe steps in Newton and improved Newton methods for approximating the Solutionof Barker‘s equation ...  Read More ...
Proposal of Backtracked Tabu Search (BTS) Algorithm
Proposal of Backtracked Tabu Search (BTS) Algorithm

Ahmed Tariq Sadiq

Volume 28, Issue 3 , January 2010, Page 500-508

https://doi.org/10.30684/etj.28.3.8

Abstract
  There are several heuristic search techniques, Tabu Search (TS) is one of them.TS based on generating the neighbor states but it has several problems in its work.This paper presents ...  Read More ...
Effect of Heat Treatment on Notch Sensitivity Factor for Aluminum Alloys
Effect of Heat Treatment on Notch Sensitivity Factor for Aluminum Alloys

Ahmed. N. Al-Khazraji; Emad Abdul Hussein Al-mudhafar

Volume 28, Issue 3 , January 2010, Page 509-519

https://doi.org/10.30684/etj.28.3.9

Abstract
  This study is concerned with the effect of heat treatment (precipitationhardening) on notch sensitivity factor for aluminum alloy (7075). Tests wereconducted on four configurations ...  Read More ...
Local and Global Uniqueness Theorems of the N-th Order Differential Equations
Local and Global Uniqueness Theorems of the N-th Order Differential Equations

Tahani Ali Salman; Sora Ali

Volume 28, Issue 3 , January 2010, Page 520-524

https://doi.org/10.30684/etj.28.3.10

Abstract
  Local and Global uniqueness theorem of solutions of the differential equationxn (t) = f (t, x(t), x' (t),..., x(n-1) (t)) , 0 < t < a , a > 0have been obtained, which are applications ...  Read More ...
Effect of Different Media on the Corrosion Behavior and Some Mechanical Properties of Al-Zn-Mg Alloy
Effect of Different Media on the Corrosion Behavior and Some Mechanical Properties of Al-Zn-Mg Alloy

Majid Hameed Abdulmageed

Volume 28, Issue 3 , January 2010, Page 525-536

https://doi.org/10.30684/etj.28.3.11

Abstract
  This work investigates the effect of different media (0.1N of NaOH, H2SO4and NaCl solution) on the polarization behavior of Al-Zn-Mg alloy and calculatessome of the corrosion parameters ...  Read More ...
Kangaroo A Proposed Stream Cipher Algorithm
Kangaroo A Proposed Stream Cipher Algorithm

Abdul-Monem S. Rahma; Suhad AbdulZahra Hassan Al-Quraishi

Volume 28, Issue 3 , January 2010, Page 537-551

https://doi.org/10.30684/etj.28.3.12

Abstract
  Stream cipher designers offer new algorithms by employing thecharacteristics of the basic structure to get algorithms that have advanced featuresfrom security and speed stand point ...  Read More ...
Analytical Investigation of 8-Channel Optical Wavelength Division Multiplexing Communication System
Analytical Investigation of 8-Channel Optical Wavelength Division Multiplexing Communication System

Mohammed Hussian Ali

Volume 28, Issue 3 , January 2010, Page 552-561

https://doi.org/10.30684/etj.28.3.13

Abstract
  In this paper, the theoretical 8-channel Dense Wave Division Multiplexing(DWDM) telecommunication system is demonstrated. Laser Diode (LD) sourcewas used for each channel, with external ...  Read More ...
Heat Transfer Characteristics in a Large-Scale Bubble Column Operating in a Semi – Batch Mode
Heat Transfer Characteristics in a Large-Scale Bubble Column Operating in a Semi – Batch Mode

Rahman Sh. Abdulmohsin; Balasim A. Abid

Volume 28, Issue 3 , January 2010, Page 562-578

https://doi.org/10.30684/etj.28.3.14

Abstract
  Time-averaged local heat transfer coefficient profiles were studied in a 0.45m bubble column using air-water system. The effect of the superficial gas velocity andaxial locations (Z/D) ...  Read More ...
Computer Controlled System Using Bluetooth Technology
Computer Controlled System Using Bluetooth Technology

Ammar Y. Daeef; Raaed K. Ibraheem; Raaed F. Hassan

Volume 28, Issue 3 , January 2010, Page 579-592

https://doi.org/10.30684/etj.28.3.15

Abstract
  The implementation of monitoring, controlling, and archiving system withdata communication based on Bluetooth technology is described. Design andimplementation of a temperature sensing ...  Read More ...
Record and Reply Messages In Real Time Systems
Record and Reply Messages In Real Time Systems

Eman Yousif Nasir

Volume 28, Issue 3 , January 2010, Page 593-607

https://doi.org/10.30684/etj.28.3.16

Abstract
  Many applications with real-time demands are composed of mixed sets oftasks with a variety of requirements. These can be used in the form of standardtiming constraints or flow of data. ...  Read More ...
Fully - P – Stable Rings
Fully - P – Stable Rings

Areej M. Abduldaim

Volume 28, Issue 3 , January 2010, Page 608-611

https://doi.org/10.30684/etj.28.3.17

Abstract
  M.S.Abbas [1] introduced and studied the concept of fully stable Rmodulesand called a ring R is fully stable ( pseudo - stable ) if it is fullystable ( pseudo - stable ) R-module . ...  Read More ...
Calculating the Focusing Effect of Laser Beam on the Penetrating & Cutting Speed
Calculating the Focusing Effect of Laser Beam on the Penetrating & Cutting Speed

Abdulla Khudiar Abass

Volume 28, Issue 3 , January 2010, Page 612-620

https://doi.org/10.30684/etj.28.3.18

Abstract
  In as much as employ activity of the laser in industrial applications specially inthe drilling & cutting works, it is important to study all variables & factors that affectefficiency ...  Read More ...
The Collocation Method for Solving the Linear Fredholm Integral Equation of the Second Kind Using Bernstein Polynomials
The Collocation Method for Solving the Linear Fredholm Integral Equation of the Second Kind Using Bernstein Polynomials

Hussain Ali Al -Juboury; Shymaa Hussain Salih

Volume 28, Issue 3 , January 2010, Page 621-625

https://doi.org/10.30684/etj.28.3.19

Abstract
  Integral equation of the second kind which has, extensively, been solved bydifferent ways, but not this one that deals with the collocation method using Bernsteinpolynomials together ...  Read More ...
Using of Brucellins and Their Fractionation Peaks in Immunization Against Brucellosis
Using of Brucellins and Their Fractionation Peaks in Immunization Against Brucellosis

Ibrahim A.Alzubaidy; Salim H. Dhahir; Mohammed K. Amean

Volume 28, Issue 3 , January 2010, Page 626-631

https://doi.org/10.30684/etj.28.3.20

Abstract
  A number of criteria have been considered during this study. These criteria include preparation and fractionation of brucellins using chromatography. Several peaks were obtained in ...  Read More ...