Laboratory Study of Protecting Downstream Slope of Rockfill Weirs Using Stepped Gabions
Laboratory Study of Protecting Downstream Slope of Rockfill Weirs Using Stepped Gabions

Ghania Aed Al-Majeed Hayawi; Bahzad Mohammad Ali Noori

Volume 30, Issue 20 , December 2012, Page 420-447

https://doi.org/10.30684/etj.30.20.15

Abstract
  In the present investigation, the stability of rockfill weirs protected by gabions and subjected to overtopping flow rates under the effect of high flow rates have been studied experimentally. ...  Read More ...
Finding the Weight Loss Rate of Metallic Surfaces Exposed To Corrosion Presence of Vibration (Corrosion - Vibration)
Finding the Weight Loss Rate of Metallic Surfaces Exposed To Corrosion Presence of Vibration (Corrosion - Vibration)

Mouhmad Abdultef Ahmed

Volume 30, Issue 20 , December 2012, Page 448-462

https://doi.org/10.30684/etj.30.20.14

Abstract
  In this research the structural steel type (A36) samples were prepared by traditional preparation operations , chemical composition of samples was analyzed , hardness tested, then testing ...  Read More ...
Experimental and Theoretical Study of Heat Liberation of Reciprocating Air Compressor
Experimental and Theoretical Study of Heat Liberation of Reciprocating Air Compressor

Haqi Ismael Qatta

Volume 30, Issue 20 , December 2012, Page 3474-3490

https://doi.org/10.30684/etj.30.20.1

Abstract
  In this paper an approach is presented to estimate the temperature , heat transfer rate and heat liberation of a reciprocating air compressor . The experimental work was performed by ...  Read More ...
Theoretical Prediction of Cavitation in Radial Inflow Turbines at Design and off-Design Conditions
Theoretical Prediction of Cavitation in Radial Inflow Turbines at Design and off-Design Conditions

Jafar M. Hassan; Mohammed I. Mohsin

Volume 30, Issue 20 , December 2012, Page 3491-3505

https://doi.org/10.30684/etj.30.20.2

Abstract
  A theoretical method for the prediction of cavitation in hydraulic radial turbines is developed in this work. The method combines a steady, quasi-three dimensional analyses which are ...  Read More ...
Numerical and Experimental Investigation of Plate Buckling under In-plane Loading
Numerical and Experimental Investigation of Plate Buckling under In-plane Loading

Naseer Hamed Farhood

Volume 30, Issue 20 , December 2012, Page 3506-3523

https://doi.org/10.30684/etj.30.20.3

Abstract
  The objective of this work is to predict the plate elastic buckling includes critical buckling load and corresponding buckling mode for stiffened and unstiffened plate under in-plane ...  Read More ...
The Use of Okra as a Coagulant and Coagulant Aids in the Removal of Heavy Metals of Solid Waste Leachates
The Use of Okra as a Coagulant and Coagulant Aids in the Removal of Heavy Metals of Solid Waste Leachates

Adnan A. Al-Samawi; Ako R. Hama

Volume 30, Issue 20 , December 2012, Page 3524-3535

https://doi.org/10.30684/etj.30.20.4

Abstract
  Coagulation-Flocculation processes play an important role in the treatment of waterand wastewater. Aluminum sulfate (alum) and polyelectrolyte (polymer) are thecommon chemical coagulants ...  Read More ...
Experimental Studies On Shear Connection Between Steel and Steel Fibered Concrete Using Studs
Experimental Studies On Shear Connection Between Steel and Steel Fibered Concrete Using Studs

Khudhayer Najim. Abd-Allah

Volume 30, Issue 20 , December 2012, Page 3536-3552

https://doi.org/10.30684/etj.30.20.5

Abstract
  This paper aims mainly to study the effects of using steel fiber in reinforced concrete parts of composite structural elements, which consist of two main parts, the steel and concrete ...  Read More ...
Text Hiding Using Artificial Neural Networks
Text Hiding Using Artificial Neural Networks

Haider Tarish Haider; Faiq Sabar Baji; Ahmad Saeed Mohammad

Volume 30, Issue 20 , December 2012, Page 3553-3564

https://doi.org/10.30684/etj.30.20.6

Abstract
  The growth of information technology and data transfer led to increase the data attacks, so that information security becomes an important issue to keep the data saved during information ...  Read More ...
Optical Properties of Tin Oxide Nanostructure Thin Films Prepared by Simple and Classical Method
Optical Properties of Tin Oxide Nanostructure Thin Films Prepared by Simple and Classical Method

Rana Osamah Mahdi

Volume 30, Issue 20 , December 2012, Page 3565-3572

https://doi.org/10.30684/etj.30.20.7

Abstract
  In the present work, preparation of transparent conductive SnO2 thin films by classical-oxidation technique of thermal evaporated tin metal films, on glass substrates was carried out. ...  Read More ...
Study the Effect of Volume Fraction of Mica With Different Particle Size on the Mechanical and Electrical Properties for Unsaturated Polyester Composites
Study the Effect of Volume Fraction of Mica With Different Particle Size on the Mechanical and Electrical Properties for Unsaturated Polyester Composites

Rafah A.Nasif

Volume 30, Issue 20 , December 2012, Page 3573-3580

https://doi.org/10.30684/etj.30.20.8

Abstract
  This study was carried out to investigate the effect of adding mica (5, 10, 15, 20, 25 % vf) with variable particle size (35, 57, 70μm) on the mechanical and electrical properties ...  Read More ...
Influence of Shape Design of MEMS (Micro-Cantilever Based Sensor) on High-Sensitivity
Influence of Shape Design of MEMS (Micro-Cantilever Based Sensor) on High-Sensitivity

Ibtissam Mahdi Shihab

Volume 30, Issue 20 , December 2012, Page 3581-3595

https://doi.org/10.30684/etj.30.20.9

Abstract
  In this paper, a novel analysis was carried out on the biosensor microcantilevers in order to increase the sensitivity of a micro- cantilever based biosensor piezoresistive. Holes were ...  Read More ...
Comparative Study of Cellular Immune Response in Cutaneous Blastomycosis
Comparative Study of Cellular Immune Response in Cutaneous Blastomycosis

Haider Faisal; Hiba T. Hussain; Azhar A. F. Al-attrraqhchi

Volume 30, Issue 20 , December 2012, Page 3596-3602

https://doi.org/10.30684/etj.30.20.10

Abstract
  Background: The immune response against Blastomyces dermatiditis is less clear than that of Histoplasma spp. or Coccidioides spp. This study was done to evaluate the cellular immune ...  Read More ...
Extractions of Tin Metal from Electronic Circuit Scrap by Wet Techniques
Extractions of Tin Metal from Electronic Circuit Scrap by Wet Techniques

Mohammed A. Abbas

Volume 30, Issue 20 , December 2012, Page 3603-3615

https://doi.org/10.30684/etj.30.20.11

Abstract
  According to the larger accumulation of electronic equipment, then new environmental techniques (wet extraction process) are studied to treat these scrap and produced a utilized metal ...  Read More ...
Mathematical Modeling of Hybrid Cooling Tower for Steam Power Plant
Mathematical Modeling of Hybrid Cooling Tower for Steam Power Plant

Hashim A.Hussain

Volume 30, Issue 20 , December 2012, Page 3616-3636

https://doi.org/10.30684/etj.30.20.12

Abstract
  An economical and environmental requirements of hybrid cooling tower in steam power plant are represented by decreasing of outlet water temperature, reducing of water and energy consumption, ...  Read More ...
Study of the Wind-Induced Dynamic Response for a Parabolic- Trough Solar Collector
Study of the Wind-Induced Dynamic Response for a Parabolic- Trough Solar Collector

Mauwafak Ali Tawfik; Bahaa Ibrahim Kazem; Haider Hussein Hamad

Volume 30, Issue 20 , December 2012, Page 3637-3652

https://doi.org/10.30684/etj.30.20.13

Abstract
  In this paper, the dynamic response of parabolic-trough due to wind loading was conducted in different flow field environment and configurations experimentally and numerically. First, ...  Read More ...