Estimating instantaneous internal combustion engine cylinder pressure using the manipulation of crankshaft vibrations
Estimating instantaneous internal combustion engine cylinder pressure using the manipulation of crankshaft vibrations
Volume 26, Issue 3 , March 2008, Page 62-80

https://doi.org/10.30684/etj.26.3.10

Abstract
  This research summarized the possibility of prediction of the cylinderpressure (combustion pressure) of internal combustion engine by measuring thevibration amplitude at the housing ...  Read More ...
The role of the design characteristics of outdoor spaces and their social activities
The role of the design characteristics of outdoor spaces and their social activities
Volume 26, Issue 3 , March 2008, Page 81-94

https://doi.org/10.30684/etj.26.3.11

Abstract
  The issue of open space uses has been taken in many studies and bydifferent specialities and from several points of view, but the role of designcharacteristics in these spaces of residential ...  Read More ...
Effect of Shot Peening on Fatigue Strength of Welded Joints For Low Carbon Steel
Effect of Shot Peening on Fatigue Strength of Welded Joints For Low Carbon Steel
Volume 26, Issue 3 , March 2008, Page 95-103

https://doi.org/10.30684/etj.26.3.12

Abstract
  The aim of this work is to study the effect of the time of shot peening withsteel balls of 1.25 mm in diameter on fatigue strength of butt joints for low carbonsteel (1020 AISI) welded ...  Read More ...
Friction and Wear of Aluminum-Silicon Alloys
Friction and Wear of Aluminum-Silicon Alloys
Volume 26, Issue 3 , March 2008, Page 104-114

https://doi.org/10.30684/etj.26.3.13

Abstract
  The effect of iron and lead that added to Al-13%Si alloy on the phases, frictionand wear characteristics were studied. All friction and wear test specimens were dryslided on the carbon ...  Read More ...
Study on Some Electrical Properties of Coumarin In (Ethanol – Water) Mixtures with Three Weight Percentage at Five Temperatures
Study on Some Electrical Properties of Coumarin In (Ethanol – Water) Mixtures with Three Weight Percentage at Five Temperatures
Volume 26, Issue 3 , March 2008, Page 115-130

https://doi.org/10.30684/etj.26.3.14

Abstract
  This research involves the study on some electrical properties such as dielectricconstant (D), molar conductivity (Λ) and the calculation of molar polarization (P)and ion- pair ...  Read More ...
Cathodic Protection of Steel Reinforcement in Concrete
Cathodic Protection of Steel Reinforcement in Concrete
Volume 26, Issue 3 , March 2008, Page 131-142

https://doi.org/10.30684/etj.26.3.15

Abstract
  The present research has be investigated the relation between the inducedlevel of polarization and the area of the embedded steel, area of the anode, theconcrete resistance and the ...  Read More ...
Application Studies for Reducing the Harmful Vibrations on Blades of High and Low Pressure Stages of Steam Turbines
Application Studies for Reducing the Harmful Vibrations on Blades of High and Low Pressure Stages of Steam Turbines

Safaa H. Abdulrahman; Adnan D. Mohammed; Mohammed A. S. Salih

Volume 26, Issue 3 , March 2008, Page 278-290

https://doi.org/10.30684/etj.26.3.1

Abstract
  In this work the dynamic behavior of blade disc - turbo rotor - bearing system isinvestigated analystically using the transfer matrix method, also the analysisapplies the finite element ...  Read More ...
Preparation Activated Carbon of From Iraqi Reed
Preparation Activated Carbon of From Iraqi Reed

Najat J. Saleh; Mohammed I. Ismaeel; Raheek. I. Ibrahim; Mummtaz A. Zablouk; Ali amer

Volume 26, Issue 3 , March 2008, Page 291-304

https://doi.org/10.30684/etj.26.3.2

Abstract
  In this work activated carbon (AC) was successfully prepared from localraw material namely Iraqi Reed .This source is cheap and available and in thiswork AC is prepared from it for ...  Read More ...
Robust-Load Frequency Controller Design For Iraqi National Super Grid System
Robust-Load Frequency Controller Design For Iraqi National Super Grid System

Rashid H. Al-Rubayi; Lokman H. Hassan Al-Sharafany

Volume 26, Issue 3 , March 2008, Page 305-325

https://doi.org/10.30684/etj.26.3.3

Abstract
  This work is intended to design a new robust load-frequency controller forIraqi National Super Grid System with uncertain parameters. Riccati equationapproach to the stabilization of ...  Read More ...
Prediction of Surface Roughness in End-Milling with Multiple Regression Model
Prediction of Surface Roughness in End-Milling with Multiple Regression Model

Saad Kareem Shather; Abbas Fadhel Ibrheem

Volume 26, Issue 3 , March 2008, Page 326-337

https://doi.org/10.30684/etj.26.3.4

Abstract
  In this Paper, we propose statistical package for social sciences (SPSS), to predictsurface roughness. Two independent data sets were obtained on the basis ofmeasurement: training data ...  Read More ...
Evaluating the Hydraulic Performance of Al Msharah River
Evaluating the Hydraulic Performance of Al Msharah River

Mahmoud S. Al Khafaji

Volume 26, Issue 3 , March 2008, Page 338-350

https://doi.org/10.30684/etj.26.3.5

Abstract
  Al Msharah River is one of the main controlled feeders of AlHuwayza Marsh in addition to its importance in irrigation of thenearby agricultural areas. A study for evaluating the hydraulicperformance ...  Read More ...
A Natural Language Steganography Technique for Text Hiding Using LSB's
A Natural Language Steganography Technique for Text Hiding Using LSB's

Hanaa M. Salman

Volume 26, Issue 3 , March 2008, Page 351-364

https://doi.org/10.30684/etj.26.3.6

Abstract
  Steganography is the art of hiding, and transmitting information usingapparently innocent carrier without expose any suspicion. This paper present anatural language steganography technique, ...  Read More ...
Performance Enhancement of GSM Cellular Phone Network using Dynamic 365 Frequency Hopping
Performance Enhancement of GSM Cellular Phone Network using Dynamic 365 Frequency Hopping

Hosham Salim; Hussein Bli

Volume 26, Issue 3 , March 2008, Page 365-375

https://doi.org/10.30684/etj.26.3.7

Abstract
  A fundamental problem in current cellular system is how to increase spectral efficiency of cellular system andhandle blocking in the call between the subscribers. The present research ...  Read More ...
Treatment of Expansive Clayey Soil with Crushed Limeston
Treatment of Expansive Clayey Soil with Crushed Limeston

Mohammed Thafer Al-Hayalee; Mohammad Natheer Al-Khashab

Volume 26, Issue 3 , March 2008, Page 376-386

https://doi.org/10.30684/etj.26.3.8

Abstract
  This paper aims at the improvement of expansive clays, by the addition of crushed limestone, obtained fromthe waste of masonry factories situated in the polluted industrial area, to ...  Read More ...
Mixed Alkali Effect on Viscosity of Sodium Potassium Borate Glasses
Mixed Alkali Effect on Viscosity of Sodium Potassium Borate Glasses

Saad B. H. Farid

Volume 26, Issue 3 , March 2008, Page 387-392

https://doi.org/10.30684/etj.26.3.9

Abstract
  The effect of the alkali oxide content on viscosity has been studiedfor sodium-potassium borate glasses. The deviation of viscosity values fromadditivity has been modeled to investigate ...  Read More ...