Thermal Effects on Diesel Engine Piston and Piston Compression Rings
Thermal Effects on Diesel Engine Piston and Piston Compression Rings

Ahmed A. Al-Beiruti; Isam Ezzulddinyousif; Basim M. Al-Quraishi

Volume 27, Issue 8 , June 2009, Page 1444-1454

https://doi.org/10.30684/etj.27.8.1

Abstract
  This paper introduces an analytical study on the thermal effects on the diesel engine piston and its compresion rings during the contact between the piston and its compression rings ...  Read More ...
On Projective 3-Space
On Projective 3-Space

Mohammed S.Kirdar; Amal S.Al-Mukhtar

Volume 27, Issue 8 , June 2009, Page 1455-1459

https://doi.org/10.30684/etj.27.8.2

Abstract
  The purpose of this work is to give some definitions and prove some theorems onprojective 3-space S=PG(3,K) over a field K.Also, the principle of duality in S is given which state that ...  Read More ...
Finite Element of Cutting Force in Turning Processes with Differently Coated Tools
Finite Element of Cutting Force in Turning Processes with Differently Coated Tools

Aseel hamad; Zena jumaa

Volume 27, Issue 8 , June 2009, Page 1460-1473

https://doi.org/10.30684/etj.27.8.3

Abstract
  The aim of this study is to create a FEM simulation model in order to obtain Numericalsolutions of cutting forces, for a range of coated tool materials and defined cuttingconditions. ...  Read More ...
Environmental Study for the Oil Pollutants Treatment of Wadi Al Naft Water/Kirkuk
Environmental Study for the Oil Pollutants Treatment of Wadi Al Naft Water/Kirkuk

Muhannad J. Al-Kazwini; Faris H. Al-Ani; Maysoun A. Al-Najar

Volume 27, Issue 8 , June 2009, Page 1474-1484

https://doi.org/10.30684/etj.27.8.4

Abstract
  Wadi Al Naft is a narrow valley originates from the confluence of two tributarieswithin the industrial region of (BaBa GurGur). The valley is being used to discharge theoily wastewater ...  Read More ...
Nonlinear Finite Element Analysis of Reinforced Concrete Beams with a Small Amount of Web Reinforcement under Shear
Nonlinear Finite Element Analysis of Reinforced Concrete Beams with a Small Amount of Web Reinforcement under Shear

Thaer Jasim Mohammed

Volume 27, Issue 8 , June 2009, Page 1485-1496

https://doi.org/10.30684/etj.27.8.5

Abstract
  This research work presents a nonlinear finite element investigation on thebehavior of reinforced concrete beams with a small amount of web reinforcement undershear. This investigation ...  Read More ...
Routing Optimization of Mobile Network System
Routing Optimization of Mobile Network System

Thamir Rashed; Emad Shehab; Dalia Kamal

Volume 27, Issue 8 , June 2009, Page 1497-1507

https://doi.org/10.30684/etj.27.8.6

Abstract
  To send the packets from source to destination node on optimum route in mobile network,the router must find the path with minimum cost. If intermediate node has fialed, the routingtable ...  Read More ...
Bandwidth Efficiency Enhancement for OFDM System Using Hybrid Equalization Techniques
Bandwidth Efficiency Enhancement for OFDM System Using Hybrid Equalization Techniques

Thamer M. Jamel; Ali N. Abdulla

Volume 27, Issue 8 , June 2009, Page 1508-1518

https://doi.org/10.30684/etj.27.8.7

Abstract
  The Cyclic prefixed OFDM systems are very robust to multipath, provided that the delay spread of the transmission channel is less than the length of the CP inserted between transmitted ...  Read More ...
Analysis and Simulation of All-Optical Router for TDM-Based Optical Networks Using: NOLM
Analysis and Simulation of All-Optical Router for TDM-Based Optical Networks Using: NOLM

Raad S. Fyath; Hassanain M. Hassan

Volume 27, Issue 8 , June 2009, Page 1519-1531

https://doi.org/10.30684/etj.27.8.8

Abstract
  The work in this paper addresses all-optical routers for TDM optical networks. The core ofthe optical routers is the demultiplexer. In this paper all-optical router is analyzed andsimulated. ...  Read More ...
Effect of Deaeration on the Corrosion of Pure Aluminum and Its Three alloys in NaOH solution at pH=11
Effect of Deaeration on the Corrosion of Pure Aluminum and Its Three alloys in NaOH solution at pH=11

Naema A. Hikmat; Ahlam M. Farhan; Rana A. Majed

Volume 27, Issue 8 , June 2009, Page 1532-1543

https://doi.org/10.30684/etj.27.8.9

Abstract
  In this work, the corrosion behaviour of pure Al and its three alloys (Al-Cu-Mg, Al-Mg, and Al-Zn-Mg) was studied in aerated and deaerated 1x10-3 mol.dm-3 NaOHsolutions to show the ...  Read More ...
Study on the Extraction of Some Metals from Ammonia Solution of Indian Sea Nodules by Using D2EHPA Reagent
Study on the Extraction of Some Metals from Ammonia Solution of Indian Sea Nodules by Using D2EHPA Reagent

Saad M. Elia

Volume 27, Issue 8 , June 2009, Page 1544-1553

https://doi.org/10.30684/etj.27.8.10

Abstract
  The leaching characteristics of sea nodules of Indian Ocean were investigated by leaching of Cu, Ni, Co, and Zn using 0.5 M of the solvent D2EHPA in ammonia solution, and 10% Isodecanol ...  Read More ...
Sensitivity and Lower Limit Detection Determined of XRF for Copper and Zinc Suspended in lubricated Grease
Sensitivity and Lower Limit Detection Determined of XRF for Copper and Zinc Suspended in lubricated Grease

Abdulhadi K. Judran AL-Ogaili

Volume 27, Issue 8 , June 2009, Page 1554-1558

https://doi.org/10.30684/etj.27.8.11

Abstract
  In this work different weight percent of copper and zinc powders of 20 ìm particlesize were blended carefully with grease , and the final weight of samples are 2 g . Thesamples ...  Read More ...
Design & Simulation of PLC Control and Electro-Hydraulic System for a Punching Machine
Design & Simulation of PLC Control and Electro-Hydraulic System for a Punching Machine

Majid A. Oleiwi; Abdul Muhsin M. Al-Timimi; Ammar Abdulhussein

Volume 27, Issue 8 , June 2009, Page 1559-1571

https://doi.org/10.30684/etj.27.8.12

Abstract
  Automatic control has become an important and integral part of modernmanufacturing and industrial processes .Automatic control provide means for attainingoptimal performance of dynamic ...  Read More ...
Spam Filtering at the Client E-mail Level
Spam Filtering at the Client E-mail Level

Imad AL-Hussaini; Mumtaz AL-Mukhtar; Mohammed M. Mazin

Volume 27, Issue 8 , June 2009, Page 1572-1581

https://doi.org/10.30684/etj.27.8.13

Abstract
  Spam has now become a significant security issue and a massive drain on financialresources. In this paper, a method for filtering the spam at the client level is presented.The proposed ...  Read More ...
Dynamic Analysis of Al-Adhaim Zoned Earthdam
Dynamic Analysis of Al-Adhaim Zoned Earthdam

Mohammed Y. Fattah; Maha H. Nsaif

Volume 27, Issue 8 , June 2009, Page 1582-1610

https://doi.org/10.30684/etj.27.8.14

Abstract
  Among external forces, the dam is subjected to earthquakes which are naturally orartificially occurring and resulting in time-varying deflections, excess pore water pressureand liquefaction ...  Read More ...
Buckling Analysis of Composite Laminated Plate with Cutouts
Buckling Analysis of Composite Laminated Plate with Cutouts

Hani Aziz Ameen

Volume 27, Issue 8 , June 2009, Page 1611-1621

https://doi.org/10.30684/etj.27.8.15

Abstract
  The determination of critical buckling load of composite plate is animportant factor in determining the structural stability, which was done by ANSYSprogram and experimental investigation ...  Read More ...
Design of a Neural Networks Linearization for Temperature Measurement System Based on Different Thermocouples Sensors Types
Design of a Neural Networks Linearization for Temperature Measurement System Based on Different Thermocouples Sensors Types

Ahmed Sabah Abdul Ameer Al-Araji

Volume 27, Issue 8 , June 2009, Page 1622-1639

https://doi.org/10.30684/etj.27.8.16

Abstract
  This paper describes an experimental method for the estimation of nonlinearity,calibration and testing of the different types of thermocouples (J and K) using modifiedElman recurrent ...  Read More ...
Effect Of Mixing Speed And Solution Temperature On Cathodic Protection Current Density Of Carbon Steel Using Magnesium As Sacrificial Anode
Effect Of Mixing Speed And Solution Temperature On Cathodic Protection Current Density Of Carbon Steel Using Magnesium As Sacrificial Anode

K. T. Rashid

Volume 27, Issue 8 , June 2009, Page 1640-1653

https://doi.org/10.30684/etj.27.8.17

Abstract
  In present work, The corrosion behavior of carbon steel in sodium chloride (NaCl)solution with different concentrations was studied .Effects of mixing speed (0 to 2220) r.p.mand the ...  Read More ...
Interference Drag Between Cylindrical Particles in Stokes Flow
Interference Drag Between Cylindrical Particles in Stokes Flow

Abbas H. Sulaymon; Sawsan A. M. Mohammed

Volume 27, Issue 8 , June 2009, Page 1654-1658

https://doi.org/10.30684/etj.27.8.18

Abstract
  In this study, the interference effects when two cylinders are placed in series or parallel in a low Reynolds number flow are predicted. For two cylinders with their line of centers ...  Read More ...
Effects of New Additives (Lanolin) on The Electro-Deposition of Copper Powder
Effects of New Additives (Lanolin) on The Electro-Deposition of Copper Powder

Sami I. Jafar

Volume 27, Issue 8 , June 2009, Page 1659-1672

https://doi.org/https://doi.org/10.30684/etj.27.8.19

Abstract
  New organic compound (Lanolin) is added to the electrolyte of copper powderdeposition unit. The influences of the copper concentration, current density, and specificsurface on the apparent ...  Read More ...