Teaching Strategies Consistent with Structures of Knowledge of learning content belong to Syllabus in Architectural Departments
Teaching Strategies Consistent with Structures of Knowledge of learning content belong to Syllabus in Architectural Departments

Nawfal Joseph Rizco

Volume 33, 8A , October 2015, Page 183-209

https://doi.org/10.30684/etj.2015.108846

Abstract
  Learning Process isn’tbased on learning Content only, but it is based on thelearning content with its structures of Knowledge and the Learning Strategy. And this Process ought ...  Read More ...
Improving Energy Saving in Conventional Pneumatic Systems by Using Air Booster Experimentally
Improving Energy Saving in Conventional Pneumatic Systems by Using Air Booster Experimentally

Jafar Mehdi Hassan; Majid Ahmed Oleiwi; Amer Abed Mansour; Walaa Mousa Hashim

Volume 33, 8A , October 2015, Page 1012-2026

https://doi.org/10.30684/etj.2015.108845

Abstract
  Pneumatic actuators are widely used in industry and many other applications, whereas low energy efficiency has been recognized as a critical drawback compared with corresponding hydraulic ...  Read More ...
Strength Improvement of Soft Soil Treated Using Stone Columns
Strength Improvement of Soft Soil Treated Using Stone Columns

Mohammed Y. Fattah; Mohammed A. Al-Neami; Ahmed Shamel Al-Suhaily

Volume 33, 8A , October 2015, Page 1740-1756

https://doi.org/10.30684/etj.2015.108820

Abstract
  A total number of 12 models tests were carried out on models of soft clays of different values of undrained shear strength varying from 8 to 18 kPa. The tests consist of twelve models ...  Read More ...
The Influence of Quenching Media and Aging Time on Microstructure and Mechanical Behavior of 6061 Aluminum Alloy
The Influence of Quenching Media and Aging Time on Microstructure and Mechanical Behavior of 6061 Aluminum Alloy

Naser Korde Zedin

Volume 33, 8A , October 2015, Page 1757-1770

https://doi.org/10.30684/etj.2015.108821

Abstract
  Aluminum-magnesium-silicon (Al-Mg-Si) alloys are medium strength, excellent formability, good corrosion resistance and widely used in extruded products and automotive body materials. ...  Read More ...
Datum Transformation with the Minimum Curvature Surface Interpolation Approach
Datum Transformation with the Minimum Curvature Surface Interpolation Approach

Ghydaa A. Abdul-Rehman; Abbas Zedan Khalaf

Volume 33, 8A , October 2015, Page 1771-1784

https://doi.org/10.30684/etj.2015.108822

Abstract
  This paper investigates main and important problem related to coordinates systems of Iraq. Maps of Iraq referenced to a local geodetic system while the technique oflocation observation ...  Read More ...
A Study of the Effect of (Cutting Speed, Feed Rate and depth of cut) on Surface Roughness in the Milling Machining
A Study of the Effect of (Cutting Speed, Feed Rate and depth of cut) on Surface Roughness in the Milling Machining

Ahmed Basil Abdulwahhab

Volume 33, 8A , October 2015, Page 1785-1797

https://doi.org/10.30684/etj.2015.108823

Abstract
  The purpose of this research is to investigate the effect of the main factor of the surface roughness in aluminum alloy (Al-2024) as a workpiece and face milling machining by using ...  Read More ...
Sub-Cooling Auxiliary System for Performance Enhancement of Main Refrigeration System
Sub-Cooling Auxiliary System for Performance Enhancement of Main Refrigeration System

Mustafa W. Hamadalla; Fawziea M. Hussien; Ahmed J. Hamad

Volume 33, 8A , October 2015, Page 1798-1812

https://doi.org/10.30684/etj.2015.108824

Abstract
  In presentwork, a sub-coolingauxiliary system is integrated with vapour compression refrigeration system to predict the performance characteristics and energy saving of the system. ...  Read More ...
Behavior of Reinforced Lightweight Concrete Two Way Slabs Strengthened With CFRP Sheets
Behavior of Reinforced Lightweight Concrete Two Way Slabs Strengthened With CFRP Sheets

Mazen D.Abdulah

Volume 33, 8A , October 2015, Page 1813-1829

https://doi.org/10.30684/etj.2015.108825

Abstract
  The principal objective of this paper is to investigation experimental and theoretical of flexural behavior of reinforced light weightconcrete two-way slabs strengthened or repaired ...  Read More ...
Adaptive Polynomial Fitting for Image Compression Based on Variance of Block Pixels
Adaptive Polynomial Fitting for Image Compression Based on Variance of Block Pixels

Riyadh Jabbar S. Al-Bahadili

Volume 33, 8A , October 2015, Page 1830-1844

https://doi.org/10.30684/etj.2015.108826

Abstract
  This paper presents a proposed method to compress images using two polynomials with different models based on the value of block pixels variance. These two polynomials are chosen from ...  Read More ...
The Influence of Current & Pulse off Time on Material Removal Rate and Electrode Wear Ratio of Steel 304 in EDM
The Influence of Current & Pulse off Time on Material Removal Rate and Electrode Wear Ratio of Steel 304 in EDM

Shukry Hammed Aghdeab; Vian Nihad Najm

Volume 33, 8A , October 2015, Page 1845-1856

https://doi.org/10.30684/etj.2015.108827

Abstract
  EDM (Electric Discharge Machining)machine was used for machining of conducting cutting materials such as steel 304in dielectric solution (diesel fuel) by supplied byDC current values ...  Read More ...
Studying Strength and Stiffness Characteristics of Sand Stabilized with Cement and Lime Additives
Studying Strength and Stiffness Characteristics of Sand Stabilized with Cement and Lime Additives

Zeena W.S. Abbawi; Kawther Y.H.AL-Soudany

Volume 33, 8A , October 2015, Page 1857-1875

https://doi.org/10.30684/etj.2015.108828

Abstract
  The present work investigates the strength characteristics of sand stabilized with two additives (cement and lime) each alone at different percentages ranging between 1-10%. Sand mixed ...  Read More ...
Weight Sensors Based Human Walking Step Recognition System: Implementation and Statistical Evaluation
Weight Sensors Based Human Walking Step Recognition System: Implementation and Statistical Evaluation

Sahar Salman Mahmood

Volume 33, 8A , October 2015, Page 1876-1889

https://doi.org/10.30684/etj.2015.108829

Abstract
  It is well known that with the growing of the humanity and all the development in technologies, there is an increasing in need for recognition systems. These systems can recognize people ...  Read More ...
Protect Digital Elevation Model (DTM) from Aerial Photographs by Using (ERDAS IMAGINE)
Protect Digital Elevation Model (DTM) from Aerial Photographs by Using (ERDAS IMAGINE)

Yousif Husain Khalf AL-kinani

Volume 33, 8A , October 2015, Page 1890-1900

https://doi.org/10.30684/etj.2015.108830

Abstract
  The Digital Terrain Model (DTM) is considered a common tool in producing topographic maps, orthophotos and civil engineering projects besides other different engineering applications. ...  Read More ...
Desulfurization and Kinetic Study of Diesel Fuel by Batch Adsorption on Activated Carbon
Desulfurization and Kinetic Study of Diesel Fuel by Batch Adsorption on Activated Carbon

Neran K. Ibrahim

Volume 33, 8A , October 2015, Page 1901-1916

https://doi.org/10.30684/etj.2015.108831

Abstract
  The present research studied a batch adsorption desulfurization process for diesel fuel containing 580ppm sulfur, based on physical adsorption of refractory sulfur compounds on activated ...  Read More ...
Nonlinear Thermoviscoelastic Behavior of Composite Thin Plates
Nonlinear Thermoviscoelastic Behavior of Composite Thin Plates

Raed Naeem Hwyyin

Volume 33, 8A , October 2015, Page 1917-1939

https://doi.org/10.30684/etj.2015.108832

Abstract
  The nonlinear thermoviscoelastic behavior of composite thin plate from polyester reinforced with random fiber glass was investigated. The hereditary elasticity (viscoelastic) behavior ...  Read More ...
Effect of Ca Addition on the Microstructure and Mechanical Properties of Al-Cu-Mg Alloy
Effect of Ca Addition on the Microstructure and Mechanical Properties of Al-Cu-Mg Alloy

Munthir M.Alkubasy; Noor .S.Tawfeeq

Volume 33, 8A , October 2015, Page 1940-1954

https://doi.org/10.30684/etj.2015.108833

Abstract
  In this research the effect of pure (Ca) element addition in different percents of (0.3,0.6,0.9%) on the microstructure and mechanical properties of Al-Cu-Mg alloy were studied .The ...  Read More ...
A New Algorithm for a Steganography System
A New Algorithm for a Steganography System

Atheer Alaa Sabri; Marwa Jaleel Mohsin

Volume 33, 8A , October 2015, Page 1955-1970

https://doi.org/10.30684/etj.2015.108835

Abstract
  Steganography is the workmanship and study of concealing mystery information to provide a safe communication between two parties.This paper,displays othersteganographic algorithms for ...  Read More ...
Comparative Study of Some Properties of Two Groups’ Binary Polymer Blends Prepared By a Twin-Screw Extruder
Comparative Study of Some Properties of Two Groups’ Binary Polymer Blends Prepared By a Twin-Screw Extruder

Sihama I. Al-Shalchy; Kadhum M. Shabeeb; Rula F. Hasan

Volume 33, 8A , October 2015, Page 1971-1985

https://doi.org/10.30684/etj.2015.108838

Abstract
  In this paper, the preparation and compare of some mechanical and physical properties of two groups of polymer blends consisting of polyvinyl chloride with polypropylene (PP-PVC) and ...  Read More ...
Implementation of an Electro-Pneumatic Prototype Elevator Controlled by PLC
Implementation of an Electro-Pneumatic Prototype Elevator Controlled by PLC

Jamal Abdul-Kareem; Hatem Kareem; Athraa Sabeeh

Volume 33, 8A , October 2015, Page 1986-1998

https://doi.org/10.30684/etj.2015.108840

Abstract
  The current paper presents a new simple and clear and implementation method for prototype Electro-pneumatic prototype elevator system. The controller used for the prototype was implemented ...  Read More ...
Analysis and Optimization of Resistance Spot Welding Parameter of Dissimilar Metals Mild Steel and Aluminum Using Design of Experiment Method
Analysis and Optimization of Resistance Spot Welding Parameter of Dissimilar Metals Mild Steel and Aluminum Using Design of Experiment Method

Sabah Khammass Hussein

Volume 33, 8A , October 2015, Page 1999-1011

https://doi.org/10.30684/etj.2015.108843

Abstract
  This research aims to study the effect of parameters of the resistance spot welding (RSW) on the shear strength of the spot weld for different metals {AA 6061-T6and AISI 1010}using ...  Read More ...