The Evaluation of Noise Pollution in Some Schools in Baghdad
The Evaluation of Noise Pollution in Some Schools in Baghdad
Volume 28, Issue 24 , December 2010, Page 1221-1230

https://doi.org/10.30684/etj.28.24.20

Abstract
  Recently noise become the most environmental pollutants in almost ofsociety establishments specially in schools .This research was done to evaluate noise level in some primary schools ...  Read More ...
Calibrating the Discharge Coefficient of Semicircular Crested Weir
Calibrating the Discharge Coefficient of Semicircular Crested Weir

Mohammed Sharif Abdul-Mohsen; Thabet M. Abdul-latif

Volume 28, Issue 24 , December 2010, Page 6831-6844

https://doi.org/10.30684/etj.28.24.1

Abstract
  This study deals with the evaluation of discharge coefficient of semicircle crested weir extending across the full width of the channel (suppressed).It is stable over flow pattern, ...  Read More ...
MIMO Antenna System Using Orthogonally Polarized Ultra Wide Band Antennas With Metamaterial
MIMO Antenna System Using Orthogonally Polarized Ultra Wide Band Antennas With Metamaterial

Jamal M.Rasool

Volume 28, Issue 24 , December 2010, Page 6845-6853

https://doi.org/10.30684/etj.28.24.2

Abstract
  Modern wireless communications require wide band width resulting in anincreased demand for Ultra-Wide Bandwidth antennas. This paper proposes a design for a compact, ultra wide bandwidth ...  Read More ...
Solving Linear and Non-Linear Eight Order Boundary Value Problems by Three Numerical Methods
Solving Linear and Non-Linear Eight Order Boundary Value Problems by Three Numerical Methods

Anwar Ja; afar Mohammad-Jawad

Volume 28, Issue 24 , December 2010, Page 6854-6871

https://doi.org/10.30684/etj.28.24.3

Abstract
  Three numerical methods were implemented for solving the eight-orderboundary value problems. These methods are Differential transformation method, Homotopy perturbation method, and ...  Read More ...
Influence of Cutter Width on Surface Roughness and Cutter Run Out During Horizontal Milling Operation
Influence of Cutter Width on Surface Roughness and Cutter Run Out During Horizontal Milling Operation

Saad Kareem Sather; Mohammad Naeem Houshi

Volume 28, Issue 24 , December 2010, Page 6872-6887

https://doi.org/10.30684/etj.28.24.4

Abstract
  This work focuses on studying the effect of cutter width on the surface roughness and cutter run out during horizontal milling operation, since the contact width in milling operations ...  Read More ...
The Effect of Iron Addition on the Dry Sliding Wear and Corrosion Behavior of Cu Al Ni Shape Memory Alloy
The Effect of Iron Addition on the Dry Sliding Wear and Corrosion Behavior of Cu Al Ni Shape Memory Alloy

Abdul Raheem . K. Abid Ali; Zuheir T. Khulief.Al-Tai

Volume 28, Issue 24 , December 2010, Page 6888-6902

https://doi.org/10.30684/etj.28.24.5

Abstract
  In this paper, dry sliding wear and corrosion behavior of Cu + 13wt% Al + 3.8 wt% Ni was prepared by powder metallurgy. Dry sliding wear has been studied based on pin on disk at constant ...  Read More ...
Enameling And Study Corrosion Behavior To Low Carbon Steel
Enameling And Study Corrosion Behavior To Low Carbon Steel

Ali Mezher Resen

Volume 28, Issue 24 , December 2010, Page 6903-6914

https://doi.org/10.30684/etj.28.24.6

Abstract
  This study includes enameling and study corrosion behavior of low carbon steel(carbon continent =0.11%) in different types of corrosive media like the H2SO4, HCLand NaOH both acidic ...  Read More ...
Accuracy Assessment of Srtm-Dem Using GpsMeasurments and Gis Techniques
Accuracy Assessment of Srtm-Dem Using GpsMeasurments and Gis Techniques

Ahmed Dhahir Athab

Volume 28, Issue 24 , December 2010, Page 6915-6928

https://doi.org/10.30684/etj.28.24.7

Abstract
  Shuttle Radar Topographic Mission (SRTM) has created datasets of globalelevations that is freely available for modeling and environmental applications. Theglobal availability (almost ...  Read More ...
Single Link Robot Arm Trajectory Following Using Model Reference Adaptive Control Algorithm
Single Link Robot Arm Trajectory Following Using Model Reference Adaptive Control Algorithm

Nihad Mohammed Ameen

Volume 28, Issue 24 , December 2010, Page 6929-6936

https://doi.org/10.30684/etj.28.24.8

Abstract
  Robust adaptive tracking control algorithm is proposed in this paper for single link robot arm position control. A model reference adaptive control algorithm is applied to control the ...  Read More ...
Electromagnetic Interference Caused by Iraqi 400kV Transmission Lines on Buried Oil Pipelines
Electromagnetic Interference Caused by Iraqi 400kV Transmission Lines on Buried Oil Pipelines

Suad I. Shahl

Volume 28, Issue 24 , December 2010, Page 6937-6953

https://doi.org/10.30684/etj.28.24.9

Abstract
  The electromagnetic interference caused by power transmission lines to oil and gas buried pipelines is under investigation for many years. Especially during fault conditions, large ...  Read More ...
Effect of Baffles on Homogenous-Heterogeneous Regime In Two Phase Bubble Column With Non-Newtonian Liquid
Effect of Baffles on Homogenous-Heterogeneous Regime In Two Phase Bubble Column With Non-Newtonian Liquid

Asawer A. Alwasiti; Farah T. Alsudany; Ali Raad

Volume 28, Issue 24 , December 2010, Page 6954-6969

https://doi.org/10.30684/etj.28.24.10

Abstract
  This work presents a comparison of the flow region in baffled and unbaffled bubble columns with Newtonian and non-Newtonian liquids. The experiments were carried out in column of 15 ...  Read More ...
Development of Three - Layer Composite Steel - Concrete - Steel Beam Element with Applications
Development of Three - Layer Composite Steel - Concrete - Steel Beam Element with Applications

Jamal A. Farhan; Hussain M. Hussain

Volume 28, Issue 24 , December 2010, Page 6970-6985

https://doi.org/10.30684/etj.28.24.11

Abstract
  In this study, a general linear one-dimensional finite element beam model is developed for the analysis of the three layer composite steel- concrete- steel beams which are a special ...  Read More ...
Design Aspects in Photonic Crystal –Vertical Cavity Surface- Emitting Lasers Diode
Design Aspects in Photonic Crystal –Vertical Cavity Surface- Emitting Lasers Diode

Thaira Zakaria Al-Tayyar; Raad Sami Fyath

Volume 28, Issue 24 , December 2010, Page 6986-6994

https://doi.org/10.30684/etj.28.24.12

Abstract
  The design issues for a current injection vertical cavity surface-emitting lasers (VCSEL) operating at 1550 nm is presented using photonic crystal (PC) technology. The design is based ...  Read More ...
Developing Backtracking Algorithm to Find the Optimal Solution Path
Developing Backtracking Algorithm to Find the Optimal Solution Path

Suhad M. Kadhum; Israa A. Abdul-Jabbar

Volume 28, Issue 24 , December 2010, Page 6995-7003

https://doi.org/10.30684/etj.28.24.13

Abstract
  There are numerous search methods in A.I used to find the solution path to a subjected problem, but many of them return one solution path with no consider it is the optimal or not. ...  Read More ...
Breit Interaction And Radiative QED Corrections In Carbon Isoelectronic Sequence and in The Atoms 1 <= Z <= 104
Breit Interaction And Radiative QED Corrections In Carbon Isoelectronic Sequence and in The Atoms 1 <= Z <= 104

Adnan Yousif Hussain

Volume 28, Issue 24 , December 2010, Page 7004-7010

https://doi.org/10.30684/etj.28.24.14

Abstract
  The multiconfiguration Dirac–Fock MCDF wavefunctions has been employed to calculate the energy contributions of the Breit interaction and radiative quantum electrodynamics QED ...  Read More ...
Theoretical and Experimental Investigations of Vibration Characteristics of a Combined Composite Cylindrical-Conical Shell Structure
Theoretical and Experimental Investigations of Vibration Characteristics of a Combined Composite Cylindrical-Conical Shell Structure

Muhsin J. Jweeg; Adnan D. Mohammed; Mohsin A.Alshamari

Volume 28, Issue 24 , December 2010, Page 7011-7026

https://doi.org/10.30684/etj.28.24.15

Abstract
  In this work, the effect of variation of several variables on linear free and transient vibration response of combined cylindrical-conical shell is presented. The shell is made of polyester ...  Read More ...
Proposed Hybrid-Encryption System for Multicast Network
Proposed Hybrid-Encryption System for Multicast Network

Mohammad Natiq Fadhil Ibraheem

Volume 28, Issue 24 , December 2010, Page 7027-7036

https://doi.org/10.30684/etj.28.24.16

Abstract
  In this paper the proposed method based on two encrypted algorithms (Public key, and Block cipher) at the same time, it allowed a sender to encrypt the multicast packet and forward ...  Read More ...
Household Behavior on Solid Waste Management A Case of Al-Kut City
Household Behavior on Solid Waste Management A Case of Al-Kut City

Abbas H. Sulaymon; Jathwa A. Ibraheem; Bassim H. Graimed

Volume 28, Issue 24 , December 2010, Page 7037-7046

https://doi.org/10.30684/etj.28.24.17

Abstract
  This paper investigates the household behavior of Al-Kut City residentstowards solid waste management. The paper is the outcome of a house to house survey of 560 households per week; ...  Read More ...
Solving the Boundary Value Problems of Ordinary Differential Equation 4th order using RK4 and RK-Butcher Techniques
Solving the Boundary Value Problems of Ordinary Differential Equation 4th order using RK4 and RK-Butcher Techniques

Anwar Jaafar Mohamed Jawad

Volume 28, Issue 24 , December 2010, Page 7047-7057

https://doi.org/10.30684/etj.28.24.18

Abstract
  The two-point boundary value problems for the 4th order ordinarydifferential equations with a positive coefficient multiplying at least one of derivative terms are solved with two numerical ...  Read More ...
Optimum Operation of Haditha Dam
Optimum Operation of Haditha Dam

Ruqaya Kadhum Mohammed

Volume 28, Issue 24 , December 2010, Page 7058-7068

https://doi.org/10.30684/etj.28.24.19

Abstract
  Limited water resources formed a great challenge for the specialists inwater resources engineering. This challenge is represented by “ design and manage the projects” connected ...  Read More ...