Representation Iraqi Map Lambert Conical Conformal Projection with 2 Stranded Parallels
Representation Iraqi Map Lambert Conical Conformal Projection with 2 Stranded Parallels

Safaa Jassim Mohammed

Volume 27, Issue 2 , January 2009, Page 58-63

https://doi.org/10.30684/etj.27.2.18

Abstract
  This research has computed the rectangular coordinates of points on map of Iraqfrom geographical coordinates by conical conformal projection with two standardparallels ( St1, St2 ) ...  Read More ...
Monthly Changes of Some Physiochemical Parameters for Tigris River- Baghdad between 2002-2003
Monthly Changes of Some Physiochemical Parameters for Tigris River- Baghdad between 2002-2003

Amal Ali. Hussain

Volume 27, Issue 2 , January 2009, Page 64-70

https://doi.org/10.30684/etj.27.2.19

Abstract
  A monthly study has been performed during October 2002 to March 2003 forTigris river flowing at four stations, the first is Al-Rashdia which is the river enterBaghdad city, the second ...  Read More ...
Experimental Investigation of Aerodynamic Characteristics of NACA 23015 under different angles of attack and Comparison with Available Package
Experimental Investigation of Aerodynamic Characteristics of NACA 23015 under different angles of attack and Comparison with Available Package

Mohammed Ahmed Rasheed; Ahmed Adnan AL-Qaisy

Volume 27, Issue 2 , January 2009, Page 215-234

https://doi.org/10.30684/etj.27.2.1

Abstract
  A Model of wing section of type (NACA 23015) had been built to be investigated andstudy the aerodynamic characteristics in a subsonic wind tunnel at different angles ofattack in order ...  Read More ...
Type-3 Feistel Network of The 128-bits Block Size Improved Blowfish Cryptographic Encryption
Type-3 Feistel Network of The 128-bits Block Size Improved Blowfish Cryptographic Encryption

Ashwaq T. Hashim

Volume 27, Issue 2 , January 2009, Page 235-246

https://doi.org/10.30684/etj.27.2.2

Abstract
  In this paper, a new secret-key block cipher called 128-bits Blowfish isproposed which is an evolutionary improvement of 64-bits Blowfish designed tomeet the requirements of the Advanced ...  Read More ...
Multi-Delay Biorthogonal Coded/Balanced TR-UWB Receiver for WPAN Based on Hadamard Matrix
Multi-Delay Biorthogonal Coded/Balanced TR-UWB Receiver for WPAN Based on Hadamard Matrix

Saleh M. Al-Qaraawy

Volume 27, Issue 2 , January 2009, Page 247-255

https://doi.org/10.30684/etj.27.2.3

Abstract
  Impulse radio ultra wideband (IR-UWB) communication is becoming an importanttechnology for future Wireless Personal Area Networks (WPANs). One of the criticalchallenges in IR-UWB system ...  Read More ...
Studying The Effect of Tool Nose Radius on Workpiece Run Out and Surface Finish
Studying The Effect of Tool Nose Radius on Workpiece Run Out and Surface Finish

Saad Kariem Shather

Volume 27, Issue 2 , January 2009, Page 256-261

https://doi.org/10.30684/etj.27.2.4

Abstract
  Tool geometry play an important role in mechanical machining and surface finish ofworkpiece. So there are many parameters such as cutting speed ,feed rate ,and tool noseradius that ...  Read More ...
Eُnvironmental Performance Assessment (EPA) by using computerized system
Eُnvironmental Performance Assessment (EPA) by using computerized system

Layla Lateef Alwan

Volume 27, Issue 2 , January 2009, Page 262-274

https://doi.org/10.30684/etj.27.2.5

Abstract
  The performance evaluation is an important element of the ISO 14000 process ISO14001:2004reffered to the environmental performance(EP) , as the measurable results of anorganization's ...  Read More ...
Nonlinear Finite Element Analysis of Prestressed Concrete Tee Beams
Nonlinear Finite Element Analysis of Prestressed Concrete Tee Beams

Ihsan A. S. Al-Shaarbaf; May J. Hamoodi

Volume 27, Issue 2 , January 2009, Page 275-287

https://doi.org/10.30684/etj.27.2.6

Abstract
  A three-dimensional finite element computer program ( 3DMPCP ) hasbeen developed to investigate the behaviour of prestressed reinforced concretebeams and to predict their ultimate loads. ...  Read More ...
Isothermal Oxidation of Simple and Pt-Modified Diffusion Coating on Inconel Alloy 600 In Water Vapor
Isothermal Oxidation of Simple and Pt-Modified Diffusion Coating on Inconel Alloy 600 In Water Vapor

Ahmed Ali Moosa; Hussein Al-Alqawie; Khalil Dr. Al- Hatab

Volume 27, Issue 2 , January 2009, Page 288-299

https://doi.org/10.30684/etj.27.2.7

Abstract
  In this work the oxidation behavior of both inconel alloy 600 and coated system(Pt-modified aluminide coating) was investigated in pure water vapor H2O in thetemperature range 700 - ...  Read More ...
Computerized Speed Measurement Technique using Magnetic Pickup Sensor
Computerized Speed Measurement Technique using Magnetic Pickup Sensor

Roshen T. Ahmed; Waleed k.Ibraheem

Volume 27, Issue 2 , January 2009, Page 300-309

https://doi.org/10.30684/etj.27.2.8

Abstract
  Speed measurements are very important task according to the large use ofmotors, generators and other rotating devices. Also for the high speed ofrotation other than speed is a function ...  Read More ...
The Production of Self-Compacting Concrete with Normal Cement Content
The Production of Self-Compacting Concrete with Normal Cement Content

Shakir A. Al-Mishhadani; Tariq S. Al-Attar; Luma A. G. Al- Rawi

Volume 27, Issue 2 , January 2009, Page 310-320

https://doi.org/10.30684/etj.27.2.9

Abstract
  The main object of this work is to evaluate the possibility for using reasonable cementcontent and fine materials to reduce costs of expensive chemical admixtures needed for themanufacturing ...  Read More ...
Study of Principle Component Analysis and Learning Vector Quantization Genetic Neural Networks
Study of Principle Component Analysis and Learning Vector Quantization Genetic Neural Networks

Mazin Z. Othman; Arif A. Al-Qassar

Volume 27, Issue 2 , January 2009, Page 321-331

https://doi.org/10.30684/etj.27.2.10

Abstract
  In this work, the Genetic Algorithm (GA) is used to improve the performance ofLearning Vector Quantization Neural Network (LVQ-NN), simulation results show thatthe GA algorithm works ...  Read More ...
Effect of Pack Cementation Coating on Hot Corrosion Resistance of Low Alloy Steel
Effect of Pack Cementation Coating on Hot Corrosion Resistance of Low Alloy Steel

Muna khedier Abbass; Jawad Badr Gatea

Volume 27, Issue 2 , January 2009, Page 332-346

https://doi.org/10.30684/etj.27.2.11

Abstract
  Two technique of coatings were performed by applying pack cementationtechnology, the first one was aluminizing diffusion coated low alloy steel substratewhereas the second one was single ...  Read More ...
Generate Cryptographic key using generated 3D- Digital Image
Generate Cryptographic key using generated 3D- Digital Image

Hala B. Abdul Wahab; Suhad M. Kadhum; Ekhlas K. Gbashi

Volume 27, Issue 2 , January 2009, Page 347-354

https://doi.org/10.30684/etj.27.2.12

Abstract
  Every few years, computer security has to re-invent itself. New technologies andnew application bring new threats, and force us to invent new protection mechanisms.Cryptography became ...  Read More ...
Study of Microstrip Feed Line Patch Antenna
Study of Microstrip Feed Line Patch Antenna

Ahmed H. Reja

Volume 27, Issue 2 , January 2009, Page 355-361

https://doi.org/10.30684/etj.27.2.13

Abstract
  This paper contains design microstrip patch antenna with feed line connector. Theantenna is mainly intended to be used for reception of a signal transmitted from anunmanned aircraft, ...  Read More ...
Electrolytic Removal of Zinc Using A Flow-Through Cell With Amalgamated Copper Screen Cathode
Electrolytic Removal of Zinc Using A Flow-Through Cell With Amalgamated Copper Screen Cathode

Abbas H. Sulaymon; Mumtaz A. Zablouk; Anaam A. Sabri

Volume 27, Issue 2 , January 2009, Page 362-372

https://doi.org/10.30684/etj.27.2.14

Abstract
  The aim of this work was to establish an electrolytic method for the removal ofzinc from waste water using a flow-through cell with amalgamated copper screencathode .The performance ...  Read More ...
Pack Cementation Coating For 304 & 316L Stainless Steel Alloys By Using Silicon Zing Process
Pack Cementation Coating For 304 & 316L Stainless Steel Alloys By Using Silicon Zing Process

Saba Hussein Khadum; Mohammed S.Waheed

Volume 27, Issue 2 , January 2009, Page 373-385

https://doi.org/10.30684/etj.27.2.15

Abstract
  In this study, we investigated the synthesis of pack cemented coating on two metallicmaterials (304 & 316L) in order to form silicon compounds on their surface at lowertemperatures ...  Read More ...
Exergy Losses Calculation for a 125 MW Combined Power Plant
Exergy Losses Calculation for a 125 MW Combined Power Plant

Falah F. Hatem

Volume 27, Issue 2 , January 2009, Page 386-394

https://doi.org/10.30684/etj.27.2.16

Abstract
  Theoretical exergy analysis is carried out for different components of acombined power plant which consists of a gas turbine unit, waste heat recoveryboiler without extra fuel consumption ...  Read More ...
Developing the Discharge Capacity of Al Husa'chi River
Developing the Discharge Capacity of Al Husa'chi River

Muhannad J. Al- Kazwini; Ali S. Al Saady; Ala H. Numa

Volume 27, Issue 2 , January 2009, Page 395-404

https://doi.org/10.30684/etj.27.2.17

Abstract
  Al Husa'chi River is one of the three main branches of Al Ka’hla River in Maissangovernorate. Its length is 25 km. the river directly feeds Al Huwayza Marsh by overpasspipes at ...  Read More ...