Diagnose and assess the weakness factors of Curriculum Quality in Architectural Department in AL-Nahrain University
Diagnose and assess the weakness factors of Curriculum Quality in Architectural Department in AL-Nahrain University

Nawfal Joseph Rizco

Volume 33, 9A , December 2015, Page 210-235

https://doi.org/10.30684/etj.2015.116249

Abstract
  The Curriculum does not arise from nothing ... but there are many foundations or determinants that affect them, that gain the utmost importance when Designing ,Evaluating &Organizing ...  Read More ...
Thermal Properties of Recycle Aggregate Concrete with Different Densities
Thermal Properties of Recycle Aggregate Concrete with Different Densities

Amer M. Ibrahim; Shakir A. Al-Mishhadani; Noor Al Huda H. Ahmed

Volume 33, 9A , December 2015, Page 2027-2038

https://doi.org/10.30684/etj.2015.116221

Abstract
  The present research intended to determine thermal properties (thermalconductivity, thermal diffusivity and specific heat) of concrete manufactured by recycle waste of clay brick and ...  Read More ...
Comparison OF Shear Properties for High Density Polyethylene (HDPE) and Poly vinyl Cloride (PVC) Polymers
Comparison OF Shear Properties for High Density Polyethylene (HDPE) and Poly vinyl Cloride (PVC) Polymers

Shawnim R. Jalal; Delven kareem

Volume 33, 9A , December 2015, Page 2039-2048

https://doi.org/10.30684/etj.2015.116222

Abstract
  The properties that make plastic of direct interest to designers and engineers are its good strength to weight ratio, low manufacturing installation costs, and high durability. The ...  Read More ...
Optimum Design of Reinforced Concrete Flat Slabs
Optimum Design of Reinforced Concrete Flat Slabs

Alaa C. Ghaleb; Mohammed A. Jennam

Volume 33, 9A , December 2015, Page 2049-2065

https://doi.org/10.30684/etj.2015.116225

Abstract
  This paper deals with the problem of optimum design of reinforced concrete flat slabs by genetic algorithm. Four case studies are discussed; flat slabs with and without edge beams, ...  Read More ...
A Novel Direct Control of Z-Source Inverter Based on Adaptive Neuro-Fuzzy Inference System
A Novel Direct Control of Z-Source Inverter Based on Adaptive Neuro-Fuzzy Inference System

Majid K. Al-Khatat; Lina J. Rashad

Volume 33, 9A , December 2015, Page 2066-2079

https://doi.org/10.30684/etj.2015.116227

Abstract
  This paper proposes a novel method for controlling the output DC-link voltage of the Z-source inverter foradjustable speed drive applications. An adaptive neuro-fuzzy controller is ...  Read More ...
Evaluations of Automotive Paints Coating Performance Using Electrochemical Impedance Spectroscopic Method
Evaluations of Automotive Paints Coating Performance Using Electrochemical Impedance Spectroscopic Method

Haider Hadi Jasim; Raed Abdul-Hussain; Shaima Al-Bazaz

Volume 33, 9A , December 2015, Page 2080-2093

https://doi.org/10.30684/etj.2015.116228

Abstract
  The aim of this paper is to study the corrosion rates and porosity of industrial paints used for car body coating. Seven types of industrial paints were used for car body structuresincluded ...  Read More ...
Inverse Kinematics Analysis Using Close Form Solution Method for 5 DOF Robot Manipulate
Inverse Kinematics Analysis Using Close Form Solution Method for 5 DOF Robot Manipulate

Alaa Hassan Shabeeb; Laith A. Mohammed

Volume 33, 9A , December 2015, Page 2094-2106

https://doi.org/10.30684/etj.2015.116229

Abstract
  This work proposes a close form solution algorithm to solve the inverse kinematics for a five degree of freedom (DOF) robot manipulator, close form solution is preferable to numerical ...  Read More ...
Galvanic Corrosion of Carbon Steel –Copper in Aerated H2SO4 Under Agitation Conditions
Galvanic Corrosion of Carbon Steel –Copper in Aerated H2SO4 Under Agitation Conditions

Muayad F. Hamad; Huda D.Abdul Kader; Basim O. Hasan

Volume 33, 9A , December 2015, Page 2107-2118

https://doi.org/10.30684/etj.2015.116230

Abstract
  Galvanic and free corrosion experiments on carbon steel-copper couple in 3% H2SO4in the presence of NaCl salts were carried out under different operating conditions. The effect of temperature, ...  Read More ...
Improving the Strength of Steel Perforated Plate Girders Loaded in Shear Using CFRP laminates
Improving the Strength of Steel Perforated Plate Girders Loaded in Shear Using CFRP laminates

May J. Hamoodi; Waeel Sh.Abdul-Sahib; Ihsan K.Abed

Volume 33, 9A , December 2015, Page 2119-2129

https://doi.org/10.30684/etj.2015.116231

Abstract
  The structural behavior of perforated composite web plate girders under shear loading is studied. Five steel plate girders have been tested. Two of them are reference girders, not perforated ...  Read More ...
Optimization of Hot-Dip Aluminizing Process Parameters of AISI 303 Stainless Steel Using RSM
Optimization of Hot-Dip Aluminizing Process Parameters of AISI 303 Stainless Steel Using RSM

Ahmed Naif Al-Khazraji; Samir Ali Al-Rabii; Hameed Shamkhi Al-Khazalli

Volume 33, 9A , December 2015, Page 2130-2145

https://doi.org/10.30684/etj.2015.116232

Abstract
  The coating thickness is an important factor to evaluate the coating quality and determining the properties of the hot-dip aluminizing (HDA)coating. In the present work, a hot dipping ...  Read More ...
Low Cycle Fatigue of Precipitation Hardened Aluminum Alloy
Low Cycle Fatigue of Precipitation Hardened Aluminum Alloy

Dhafir S. Al-Fattal; Saif Khalid Mahmood

Volume 33, 9A , December 2015, Page 2146-2158

https://doi.org/10.30684/etj.2015.116233

Abstract
  In this work, the influence of different heat treatments on the mechanical properties and fatigue life under low cycles of wrought 7075 aluminum alloy was experimentally investigated. ...  Read More ...
Low-Cost Attitude and Heading Reference System Filter Using Complementary Method
Low-Cost Attitude and Heading Reference System Filter Using Complementary Method

Emad Natiq Abdulwahab; Mohammed Idrees Mohsin; Akeel Ali Wannas

Volume 33, 9A , December 2015, Page 2159-2173

https://doi.org/10.30684/etj.2015.116234

Abstract
  This paper presents an orientation filter using complementary filter applicable to low-cost sensors based on micro electro-mechanical system (MEMS). The MEMS implementation incorporates ...  Read More ...
Effect of Powder Concentration in PMEDM on Machining Performance for Different Die steel Types
Effect of Powder Concentration in PMEDM on Machining Performance for Different Die steel Types

Maan Aabid Tawfiq; Azzam Sabah Hameed

Volume 33, 9A , December 2015, Page 2174-2186

https://doi.org/10.30684/etj.2015.116235

Abstract
  Electric discharge machining(EDM) is one of the nonconventional machining process which has been used in manufacturing complex shapes on hard material that are difficult to cut by conventional ...  Read More ...
Effect of Sodium Chloride on Microstructure and Mechanical Properties of Al-Si alloy
Effect of Sodium Chloride on Microstructure and Mechanical Properties of Al-Si alloy

Jafer T. Al-Haidary; Mahdie Mutier Hanon; Yasir Muhi Abdulsahib

Volume 33, 9A , December 2015, Page 2187-2197

https://doi.org/10.30684/etj.2015.116236

Abstract
  In this work, the effect of sodium chloride (NaCl) powder addition with different amounts on microstructure and mechanical properties of Al-12 wt. %Si alloy was investigated. In this ...  Read More ...
The Ways of Reducing the Degradation of Optical Signals and Study the Effect of the Degradation on the Quality of Optical Fiber Communication Systems
The Ways of Reducing the Degradation of Optical Signals and Study the Effect of the Degradation on the Quality of Optical Fiber Communication Systems

Saad Z. Sekhi

Volume 33, 9A , December 2015, Page 2198-2211

https://doi.org/10.30684/etj.2015.116238

Abstract
  This paper is to analyze the impact of optical signal degradation on the quality of optical fiber communication systems, and enhance the way of reducing the signal degradation mechanism. ...  Read More ...
The Effect of Granular Material on Behaviour of Stone Columns in Soft Clay under Embankment
The Effect of Granular Material on Behaviour of Stone Columns in Soft Clay under Embankment

Shaker Mahmood Mohammed

Volume 33, 9A , December 2015, Page 2212-2219

https://doi.org/10.30684/etj.2015.116242

Abstract
  ABSTRACTThe stone column material is one of the main controlling parameters in the design of stone columns. It is shown to be affecting the stiffness of the stone columns and hence ...  Read More ...
An Alternative Approach for Angle of Arrival Estimation
An Alternative Approach for Angle of Arrival Estimation

Bassim Sayed Mohammed

Volume 33, 9A , December 2015, Page 2220-2230

https://doi.org/10.30684/etj.2015.116243

Abstract
  The Multiple Signal Classification (MUSIC) algorithm is the most popular algorithm to estimate the Angle of Arrival (AOA) of the received signals. This algorithm is based on the calculation ...  Read More ...
Specific Chaotic System and its Implementation in Robotic Field
Specific Chaotic System and its Implementation in Robotic Field

Mauwafak A. Tawfik; Emad N. Abdulwahab; Salah M. Swadi

Volume 33, 9A , December 2015, Page 2231-2243

https://doi.org/10.30684/etj.2015.116244

Abstract
  This paper presented a three-dimensional continuous autonomous chaotic system, modified from the Arnold system which has a single product termin each equation of thesystem; therefore ...  Read More ...
The Effect of Water Injection and Increasing Humidity of the Combustion Air on the Pollutants Emission from a Continuous Combustion Chamber
The Effect of Water Injection and Increasing Humidity of the Combustion Air on the Pollutants Emission from a Continuous Combustion Chamber

Abdul Kadhim M. Hasan; Abdul Sattar Jawad M; Murtadha Shubber Amran

Volume 33, 9A , December 2015, Page 2244-2254

https://doi.org/10.30684/etj.2015.116245

Abstract
  The present work represents an investigation for the pollutants emission when adding water to air in a continuous combustion chamber. Direct water injection into the chamber with water/fuel ...  Read More ...
Beneficiation of Akashat Phosphate Rocks by Flotation Process
Beneficiation of Akashat Phosphate Rocks by Flotation Process

Hijran Z.Toama; Abdul-Wahab A. Al-Ajeel; Haitham H. Waheeb

Volume 33, 9A , December 2015, Page 2255-2268

https://doi.org/10.30684/etj.2015.116247

Abstract
  In this work, reverse froth flotation technique has been adopted to upgrade the Iraqi phosphate ore from Akashat deposit as an alternative method to the existing calcination method. ...  Read More ...