Number of Articles: 20
Some Factors Effecting on the Dielectric Strength for (PVC- Kaolin) Composites
Volume 29, Issue 3 , February 2011, Page 103-116
Abstract
This research includes the effect of kaolin additions to the polymer matrix (PVC) and study some factors affecting to dielectric strength. The kaolin powder was added as percentage ... Read More ...
Study of Spectroscopy and Thermodynamic Properties for Germanium Tetrafluoride GeF4 Molecular and Study of Potential Energy Curve for Bond (Ge-F)
Volume 29, Issue 3 , February 2011, Page 117-124
Abstract
In This research Complete study Spectroscopic and Thermodynamic properties for molecule GeF4 . This included calculation of potential energy curve . from this curve total energy of ... Read More ...
Thinking Skills in Architectural Work A Study of Thinking Skill Levels at Student of Architecture
Volume 29, Issue 3 , February 2011, Page 125-152
Abstract
A skill is the learned capacity to carry out pre-determined results often with the minimum outlay of time, energy, or both . Skills can often be divided into domain - general and ... Read More ...
Transient Thermal Stress Prediction Due To Flow of Coolant Through Hot Pipe
Volume 29, Issue 3 , February 2011, Page 423-433
Abstract
Transient thermal stresses in pipe wall due to coolant turbulent flow through pipe are investigated in this study with transient isothermal hot boundary in the external pipe radius. ... Read More ...
Three-Dimensional Flow Model for The Downstream of Kuffa Barrage
Volume 29, Issue 3 , February 2011, Page 434-441
Abstract
The three-dimensional numerical computational fluid dynamics “CFD” computer program "SSIIM" was used to predict the flow field downstream the Kuffa Barrage. It solved the Reynolds-Averaged ... Read More ...
Applicable Studies of the Slow Electrons Motion in Air with Application in the Ionosphere
Volume 29, Issue 3 , February 2011, Page 442-461
Abstract
In this study, the motions of slow electrons in air and nitrogen with it's mixtures are studies by details. We solved numerically Boltzmann transport equation to calculate the parameters ... Read More ...
Edge Detection Based on Standard Deviation Value and Back Propagation Algorithm of Artificial Neural Network
Volume 29, Issue 3 , February 2011, Page 462-469
Abstract
This paper presents a proposed neural network based edge detection algorithm. we have used artificial neural network system to decide about whether each pixel is edge or not. First ... Read More ...
A Study Of Some Hydrological Aspects For Spillway Design of A Small Dam In The North of Iraq
Volume 29, Issue 3 , February 2011, Page 470-476
Abstract
This research is to evaluation and analyzing the main aspects of spillway design for Chaq-Chaq dam in north of Iraq in Suleimaniya governorate, with help of the hydraulic, hydrologic ... Read More ...
Experimental Investigations Heat Transfer and Pressure Drop Characteristics of Flow Through Circular Tube Fitted With Drilled Cut-Conical Rings
Volume 29, Issue 3 , February 2011, Page 477-487
Abstract
The heat transfer rate and pressure drop characteristics of turbulent flow of air through uniformly heated circular tube fitted with drilled cut conical rings with three space ratios ... Read More ...
Poisson's Ratio as a Function of Time in Composite Material of Viscoelastic Behavior by Depending on Creep Test
Volume 29, Issue 3 , February 2011, Page 488-498
Abstract
In viscoelastic behavior of composite material, such as those made of thermo-set polyester and one layer random fiber glass, the Poisson’s ratio is described in new function of ... Read More ...
Design and Implementation Web Site for UOT Using Mobile Devices
Volume 29, Issue 3 , February 2011, Page 499-512
Abstract
A mobile phone allows its user to make and receive telephone calls to and from the public telephone network which includes other mobiles and fixed-line phones across the world. In addition ... Read More ...
Effective Web Page Crawler
Volume 29, Issue 3 , February 2011, Page 513-530
Abstract
The World Wide Web (WWW) has grown from a few thousand pages in 1993 to more than eight billion pages at present. Due to this explosion in size, web search engines are becoming increasingly ... Read More ...
Structural and Optical Properties of Lead Iodide Thin Films Prepared By Vacuum Evaporation Method
Volume 29, Issue 3 , February 2011, Page 531-543
Abstract
Structural and optical properties were studied as a function of films thickness for thermally evaporation PbI2 films. X-ray diffraction analysis confirmed that PbI2 films are polycrystalline ... Read More ...
On Left s -Centralizers Of Jordan Ideals And Generalized Jordan Left (s ,t ) -Derivations Of Prime Rings
Volume 29, Issue 3 , February 2011, Page 544-553
Abstract
In this paper we generalize the result of S. Ali and C. Heatinger on left s - centralizer of semiprime ring to Jordan ideal, we proved that if R is a 2-torsion free prime ring, U is ... Read More ...
Detection of Water-Table by Using Ground Penetration Radar (GPR)
Volume 29, Issue 3 , February 2011, Page 554-566
Abstract
Ground penetrating radar, GPR, is a high resolution geophysical method, which is based on the propagation of high frequency electromagnetic waves. The GPR method images structures in ... Read More ...
Residual Stress effect on Fatigue Behavior of 2024- Aluminum alloy
Volume 29, Issue 3 , February 2011, Page 567-578
Abstract
In the present work the effect of residual stress on the fatigue behavior of 2024 Aluminum alloy was studied experimentally and numerically using finite element method with aid of ANSYS-11 ... Read More ...
Smith Predictor with Simple Control Scheme for Higher Order Systems
Volume 29, Issue 3 , February 2011, Page 579-594
Abstract
A simple control scheme with smith predictor connection is proposed in this paper for time delay higher order systems. The control scheme is simply integral (I) controller with Proportional ... Read More ...
Removal of Heavy Metals Using Chemicals Precipitation
Volume 29, Issue 3 , February 2011, Page 595-612
Abstract
The single component and multi-component hydroxide precipitation and adsorption were studied for different heavy metals namely Iron (III), Chromium (III), Copper (II), Lead (II), Nickel ... Read More ...
Solutions of Dynamic Fractional Order Differential Algebraic Equations System
Volume 29, Issue 3 , February 2011, Page 613-624
Abstract
In this paper, we are presented the existence and uniqueness theorem, and two proposed methods, based on the theory of Gunwald-Letnikov fractional order derivative. In the first method, ... Read More ...
Improving a Model for Speed / Density Relationship on Arterial Roads in Baghdad City
Volume 29, Issue 3 , February 2011, Page 625-638