Study of the nitriding process for samples coated with chromium by the deposition method
Study of the nitriding process for samples coated with chromium by the deposition method
Volume 26, Issue 2 , February 2008, Page 37-48

https://doi.org/10.30684/etj.26.2.14

Abstract
  In this paper nitriding is performed on (Nitralloy135) alloyed steel which iscoated with chromium before heat treatment. Tests and inspections werepreformed like coated layer depth ...  Read More ...
Influence of Locally Produced Waterproofing Admixture (Sternson 300) on Concrete Absorption and Strength
Influence of Locally Produced Waterproofing Admixture (Sternson 300) on Concrete Absorption and Strength
Volume 26, Issue 2 , February 2008, Page 49-61

https://doi.org/10.30684/etj.26.2.15

Abstract
  In this work, the influence of waterproofing admixture of stearate type on thewater reduction of concrete mix (1:2:4) for a given workability, (50+5)mm slump wasinvestigated. Results ...  Read More ...
A Study on Wear and Erosion-Corrosion Resistance of Two Typs of Cast Irons.
A Study on Wear and Erosion-Corrosion Resistance of Two Typs of Cast Irons.

Sami A.Ajeel; Safaa Mohammed Hasoni

Volume 26, Issue 2 , February 2008, Page 111-123

https://doi.org/10.30684/etj.26.2.1

Abstract
  The wear and erosion-corrosion resistance of gray and ductile cast ironswere studied for their important in most applications. The wear tests were carriedout using a pin-on-disc machine ...  Read More ...
Vanadium Oxide Recovery from Spent Catalysts by ChemicaL Leaching
Vanadium Oxide Recovery from Spent Catalysts by ChemicaL Leaching

Falak O.Abas

Volume 26, Issue 2 , February 2008, Page 124-138

https://doi.org/10.30684/etj.26.2.2

Abstract
  The Vanadium content of the catalyst can be reclaimed for further use. Theaim of present work is to recover Vanadium pentoxide (V2O5) from spent catalystwhich previously used by a local ...  Read More ...
The Influence Of Bonding Mode and Wire Setting On The Stresses Of Metal Matrix Composite Reinforced with Continuous wire
The Influence Of Bonding Mode and Wire Setting On The Stresses Of Metal Matrix Composite Reinforced with Continuous wire

Basim. Mohammed Fadhel

Volume 26, Issue 2 , February 2008, Page 139-145

https://doi.org/10.30684/etj.26.2.3

Abstract
  This paper deals with the influence of bonding mode and the setting of thereinforcement between matrix and reinforcement for metal matrix composite on theinduced stresse and also on ...  Read More ...
Effect of Coarse Aggregate Characteristics on Drying Shrinkage of Concrete
Effect of Coarse Aggregate Characteristics on Drying Shrinkage of Concrete

Tareq Salih Al-Attar

Volume 26, Issue 2 , February 2008, Page 146-153

https://doi.org/10.30684/etj.26.2.4

Abstract
  Concrete is a composite material, consisting, mainly, of three phases: coarseaggregate, cement mortar, and the interface zone between them. The characteristicsof the interface zone ...  Read More ...
Ductile and Gray Cast Irons Deterioration with Time in Various NaCl Salt Concentrations
Ductile and Gray Cast Irons Deterioration with Time in Various NaCl Salt Concentrations

Sami A. Ajeel; Safaa Mohommed Hasoni

Volume 26, Issue 2 , February 2008, Page 154-168

https://doi.org/10.30684/etj.26.2.5

Abstract
  Gray cast iron is used in wide engineering applications especially pipesand these pipes are exposed to failure in most cases so that ductile cast iron is usedinstead of it later.This ...  Read More ...
Stress Evaluation of Low Pressure Steam Turbine Rotor bBlade and Design of Reduced Stress Blade
Stress Evaluation of Low Pressure Steam Turbine Rotor bBlade and Design of Reduced Stress Blade

Arkan K. Husain Al-Taie

Volume 26, Issue 2 , February 2008, Page 169-179

https://doi.org/10.30684/etj.26.2.6

Abstract
  The low pressure steam turbine blade rows have a history of stress failure . They suffer fromtensile and bending stresses partly due to the centrifugal force as a result of high rotationalspeeds ...  Read More ...
Automated Electronic Circuit Design for Low Pass Filter Based on Genetic Algorithm
Automated Electronic Circuit Design for Low Pass Filter Based on Genetic Algorithm

Hanan. A. R. Akkar; Mohammed. K. Abrahem

Volume 26, Issue 2 , February 2008, Page 180-188

https://doi.org/10.30684/etj.26.2.7

Abstract
  In this paper a proposed method to design electronic circuits by using software approach based ongenetic algorithms is presented. The method is implemented to design low pass filter ...  Read More ...
Numerical Simulation of Solidification Around Staggered Tube Arrangement With Convection – Dominated
Numerical Simulation of Solidification Around Staggered Tube Arrangement With Convection – Dominated

Waheed S . Mohammed; Zainab H. Hassan

Volume 26, Issue 2 , February 2008, Page 189-201

https://doi.org/10.30684/etj.26.2.8

Abstract
  This work describes and analyses thermal storage system as a phase change problem whichinvolves a fluid flowing inside cooled tubes in a staggered arrangement installed in a rectangularduct ...  Read More ...
Modelling The Behaviour Of Sand Under Strain-Controlled Loading BY The Finite Element Method
Modelling The Behaviour Of Sand Under Strain-Controlled Loading BY The Finite Element Method

Omar al-Farouk S. al-Damluji; Mohammed Yousif Fattah

Volume 26, Issue 2 , February 2008, Page 202-227

https://doi.org/10.30684/etj.26.2.9

Abstract
  Strain-controlled tests are conventional in soil mechanics laboratories. It isintended in this paper to simulate both triaxial and simple shear teststheoretically by using the finite ...  Read More ...
Content-Based Authentication Using Digital Speech Data
Content-Based Authentication Using Digital Speech Data

Hanaa M. Salman

Volume 26, Issue 2 , February 2008, Page 228-239

https://doi.org/10.30684/etj.26.2.10

Abstract
  A watermarking technique for speech content and speaker authenticationscheme, which is based on using abstracts of speech features relevant to semanticmeaning and combined with an ID ...  Read More ...
Optimization of Production of Food Grade Gelatin from Bovine Hide Wastes
Optimization of Production of Food Grade Gelatin from Bovine Hide Wastes

Mahmood M. Barbooti; Shahrazad R. Raouf; Firas H. K. Al-Hamdan

Volume 26, Issue 2 , February 2008, Page 240-253

https://doi.org/10.30684/etj.26.2.11

Abstract
  The optimum conditions for the production of food grade gelatin from the tannerybovine hide wastes are established. The process involves cutting the hide wastes intosmall pieces (1-2 ...  Read More ...
Mechanical Properties of Composite Material Using Natural Rubber with Epoxy Resin
Mechanical Properties of Composite Material Using Natural Rubber with Epoxy Resin

Hani Aziz Ameen

Volume 26, Issue 2 , February 2008, Page 254-264

https://doi.org/10.30684/etj.26.2.12

Abstract
  In this paper the mechanical properties of three types of composite materials usingnatural rubber vulcanized, unvulcanized and reinforced rubber have beeninvestigated . The composite ...  Read More ...
Indirect Field Orientation Control of Induction Machine with Detuning Effect
Indirect Field Orientation Control of Induction Machine with Detuning Effect

Rami A. Mahir; Ziad M. Ahmed; Amjad J. H

Volume 26, Issue 2 , February 2008, Page 265-277

https://doi.org/10.30684/etj.26.2.13

Abstract
  Field orientation control (FOC) methods of an induction machine achievedecoupled torque and flux dynamics leading to independent control of torque andflux as for separately excited ...  Read More ...