Differentiating Clayey Soil Layers from Electrical Resistivity Imaging (ERI) and Induced Polarization (IP)
Differentiating Clayey Soil Layers from Electrical Resistivity Imaging (ERI) and Induced Polarization (IP)

Nadia A. Aziz; Mahmoud R. AL- Qaissy; Hussein H. Karim

Volume 31, Issue 17 , October 2013, Page 3216-3234

https://doi.org/10.30684/etj.31.17A.1

Abstract
  Electrical Resistivity Imaging (ERI) method is one of the most promising techniques which is well suited for the applications in the fields of geohydrology, environmental science and ...  Read More ...
Wear Performance of a Laser Surface Hardened ASTM 4118 Steel
Wear Performance of a Laser Surface Hardened ASTM 4118 Steel

Assifa M. Mohamad

Volume 31, Issue 17 , October 2013, Page 3235-3244

https://doi.org/10.30684/etj.31.17A.2

Abstract
  In this investigation ASTM 4118 steel was treated by using pulse Nd: YAG laser with wave length 1064nm and pulse duration 100ns. In order to assess the new tribological properties of ...  Read More ...
Process Capability Evaluation for a Non-normally Distributed One
Process Capability Evaluation for a Non-normally Distributed One

Samah Ali Aufy; Mahmoud Abbas Mahmoud

Volume 31, Issue 17 , October 2013, Page 3245-3258

https://doi.org/10.30684/etj.31.17A.3

Abstract
  The common process capability indices (PCIs) Cp, Cpk, Cpm are widely used in practice. The use of these PCIs is based on the assumptions that process is in control and its output should ...  Read More ...
Direct Torque Control of Induction Motor Based on Neurofuzzy
Direct Torque Control of Induction Motor Based on Neurofuzzy

Abdulrahim T. Humod; Wiam I. Jabbar

Volume 31, Issue 17 , October 2013, Page 3259-3273

https://doi.org/10.30684/etj.31.17A.4

Abstract
  The main objective of this work is to improve the speed and torque responses of three phase Induction Motor (IM) during different loads and speeds conditions. Induction Motor is most ...  Read More ...
Design of Robust Compensating Controller for Lateral Motion of the Vehicle
Design of Robust Compensating Controller for Lateral Motion of the Vehicle

Hayder Sabah. Abad Al-Amir

Volume 31, Issue 17 , October 2013, Page 3274-3284

https://doi.org/10.30684/etj.31.17A.5

Abstract
  In this paper, robust compensating controller is proposed to control the lateral velocity and yaw rate of the vehicle during turning .This controller uses the errors of the lateral ...  Read More ...
PSO Based PID Controller Design for a Precise Tracking of Two-Axis Piezoelectric Micro positioning Stage
PSO Based PID Controller Design for a Precise Tracking of Two-Axis Piezoelectric Micro positioning Stage

Hazem I. Ali; Yasir Khudhair Abbas; Ali Majeed Mahmood

Volume 31, Issue 17 , October 2013, Page 3285-3297

https://doi.org/10.30684/etj.31.17A.6

Abstract
  In this paper the design of an optimal PID controller for single and double axis piezoelectric micropositioning stage system is presented. The Particle Swarm Optimization (PSO) method ...  Read More ...
Studying the Affect of Current on (MRR) and (EW) in Electrical Discharge Machining (EDM)
Studying the Affect of Current on (MRR) and (EW) in Electrical Discharge Machining (EDM)

Ahmed Bassil Abdulwahhab; Shukry Hamm; Maan Aabid Tawfiq

Volume 31, Issue 17 , October 2013, Page 3298-3311

https://doi.org/10.30684/etj.31.17A.7

Abstract
  The experimental work of this study leads with electro discharge machining (EDM). A system for machining in this process has been developed. Many parameters are studied such as current, ...  Read More ...
Snubber Network Design for Triac Driving Single – Phase Industrial Heater by Applying Fuzzy Logic Method
Snubber Network Design for Triac Driving Single – Phase Industrial Heater by Applying Fuzzy Logic Method

Yesar Noori Lafta; Aslan Sabah aldeen Abdi

Volume 31, Issue 17 , October 2013, Page 3312-3321

https://doi.org/10.30684/etj.31.17A.8

Abstract
  Power switches require snubbing networks for driving single – phase industrial heaters. Designing these networks, for controlling the maximum allowable rate of rise of anode current ...  Read More ...
New Method for Recycling of waste paper in useful products
New Method for Recycling of waste paper in useful products

Bahra D. Ghafour; Mohammed A. A; Falak O. Abas

Volume 31, Issue 17 , October 2013, Page 3322-3333

https://doi.org/10.30684/etj.31.17A.9

Abstract
  Waste paper recycling is a process by which waste paper or waste cellulose fibers are processed together with some chemical additions to produce another product such as file cover, ...  Read More ...
Prediction the Effect of Cutting Parameters on Surface Roughness Using Taguchi Method
Prediction the Effect of Cutting Parameters on Surface Roughness Using Taguchi Method

Laith A. Mohammed; Ahmed A. Duroobi

Volume 31, Issue 17 , October 2013, Page 3334-3342

https://doi.org/10.30684/etj.31.17A.10

Abstract
  In this study, the prediction of surface roughness of milled surfaces was carried out using Taguchi Method with four inputs, namely, cutting direction, stepover, feed per tooth and ...  Read More ...
Preparation and Characterization of Nanoporous Zeolitic Membranes for Catalytic Applications
Preparation and Characterization of Nanoporous Zeolitic Membranes for Catalytic Applications

Talib M. Naieff Al-Bayati

Volume 31, Issue 17 , October 2013, Page 3343-3357

https://doi.org/10.30684/etj.31.17A.11

Abstract
  The Hydroisomerization and Hydrocracking of n-Heptane was carried out in a packed bed plug-flow zeolitic catalytic membrane reactor at a constant pressure of (100 kpa).Material was ...  Read More ...
Geotechnical Properties of Expansive Soil Treated With Silica Fume
Geotechnical Properties of Expansive Soil Treated With Silica Fume

Zeena Waleed S. Abbawi

Volume 31, Issue 17 , October 2013, Page 3358-3370

https://doi.org/10.30684/etj.31.17A.12

Abstract
  Problematic soils such as expansive soil are those clay soils which exhibited significant volume changes as results of soil moisture variation, when a dry mass of clay is allowed to ...  Read More ...
Study the Behavior of Long Spiral Tube Adsorber for Oxygen Separation from Air
Study the Behavior of Long Spiral Tube Adsorber for Oxygen Separation from Air

Zaid A. Abdel-Rahman; Abdulbasit H. Mhdi; Ahmed J. Ali

Volume 31, Issue 17 , October 2013, Page 3371-3381

https://doi.org/10.30684/etj.31.17A.13

Abstract
  Single long spiral tube column (25 mm diameter, and 4 m bed length) had been constructed to study the separation of oxygen from air using commercial 13X zeolite. The effect of adsorption ...  Read More ...
Effect of Uric acid Level on the Corrosion Behavior of SS 316L and Co-Cr-Mo Used in Implant Applications
Effect of Uric acid Level on the Corrosion Behavior of SS 316L and Co-Cr-Mo Used in Implant Applications

Kahtan K. Al-Khazraji; Rana A. Majed; Zina Noori Abdulhameed

Volume 31, Issue 17 , October 2013, Page 3382-3390

https://doi.org/10.30684/etj.31.17A.14

Abstract
  In this study electrochemical behaviors of SS 316L and Co-Cr-Mo alloys were studied using electrochemical method by potentiostat in simulated body fluid (SBF) at pH=7.4 and 37oC in ...  Read More ...
Effect Of Reinforced by Coconut Fiber Core on The Mechanical Properties for Un-Saturated Polyester Matrix Composite Material
Effect Of Reinforced by Coconut Fiber Core on The Mechanical Properties for Un-Saturated Polyester Matrix Composite Material

Hind Basil Ali

Volume 31, Issue 17 , October 2013, Page 296-308

https://doi.org/10.30684/etj.31.17A.15

Abstract
  This work involves study tensile strength; hardness and thermal conductivity of composite material consist of coconut fibers mixed with polyester resin. This composite material was ...  Read More ...