Number of Articles: 20
Effect of Graphite Particles Addition on the Wear Resistance and Friction coefficient of Brass Alloy (α)
Volume 27, Issue 6 , April 2009, Page 218-233
Abstract
This research is devoted to study the effect of different percentage of Graphiteparticles addition (5,10,15) wt% to Brass alloy (α) produced by stir casting using vortextechnique ... Read More ...Effect of Current on Average Surface Roughness of Borosilicate Glass at EDM Machining and Comparison with Numerical Programs
Volume 27, Issue 6 , April 2009, Page 1026-1038
Abstract
Machining of electrically non-conducting materials like glass is still a major problem. The principle of electric arc was used to generate high electrical discharge (spark) at high ... Read More ...Laser sealing and thermal shock resistance of 6.5 wt% yttria Partially stabilized zirconia plasma sprayed layers
Volume 27, Issue 6 , April 2009, Page 1039-1048
Abstract
Laser sealing of zirconia-6.5 wt% yttria partially stabilized zirconia (YPSZ) plasmasprayed layers were examined for both plan views and transverse sections. Scanningelectron microscopy ... Read More ...Simulation of Active Magnetic Bearing Response based NNC
Volume 27, Issue 6 , April 2009, Page 1047-1063
Abstract
The present work is dealing with the modeling, investigations, and controlling, of a prototype radial magnetic bearing system. Considerations based on the 8 poles model with switched ... Read More ...HDNA : Heuristic DNA Computing Algorithm
Volume 27, Issue 6 , April 2009, Page 1064-1073
Abstract
The proposed system is based on embedded the heuristic search in DNA search algorithm so to make it more efficient and flexible. The HDNA system is constructed to improve the work of ... Read More ...Adiabatic and Separated Flow of R-22 and R-407C in Capillary Tube
Volume 27, Issue 6 , April 2009, Page 1074-1082
Abstract
In this paper adiabatic flow in capillary tube is analyzed and modeled for R-22 andalternative R-407C. The equations of continuity, energy and pressure drop through acapillary tube ... Read More ...Study of The Optimization Condition Of Batch Sterilization Using Genetic Algorithm
Volume 27, Issue 6 , April 2009, Page 1083-1092
Abstract
The present work is designed to study the parameters interaction of sterilizationprocesses in batch bioreactors (fermentors of volume 120 liter with medium of 56784 kg).he parameters ... Read More ...Syntheses, Characterization and Study of Use of Manganese (III) Schiff-Base Complex as Thermal Initiation in Radical Polymerization of Styrene
Volume 27, Issue 6 , April 2009, Page 1093-1107
Abstract
The new schiff base complex: Chloro- (bis (salicylaldehyde) ethylene diiminato)aqua manganese (III) is synthesized and characterized. It is used as thermal initiation inradical polymerization ... Read More ...Simulation Study 0f 802.11b DCF Using OPNET Simulator
Volume 27, Issue 6 , April 2009, Page 1108-1117
Abstract
A simulation study of an IEEE 802.11b which is the most important standard forwireless local area networks was presented in this paper. The simulation is conducted usingOPNET IT Guru ... Read More ...Numerical Simulation of a Two-Dimension Ramp Inlet Flow Field
Volume 27, Issue 6 , April 2009, Page 1118-1126
Abstract
The Two-dimension ramp inlet flow field was studied with typical mode operations.Euler equations were used for solution with no special treatment required. In this work asolution algorithm ... Read More ...A Secure Mobile Banking Using Kerberos Protocol
Volume 27, Issue 6 , April 2009, Page 1127-1133
Abstract
Because the network is an open environment, a lot of care must be taken whentransferring sensitive information especially when related with financial data. This dependson the principals ... Read More ...The Effect of Surfactant Concentration on the Rate of CO2 Absorption by Carbonate Solution in Packed Tower
Volume 27, Issue 6 , April 2009, Page 1134-1142
Abstract
Absorption of carbon dioxide from gaseous mixture (carbon dioxide, air) wasstudied by using Carbonate Solution (Na2CO3) in a counter-current packed column (7.5 cmid, 1.70 m height), ... Read More ...Using of Taguchi Method to Optimize the Casting of Al–Si /Al2O3 Composites
Volume 27, Issue 6 , April 2009, Page 1143-1150
Abstract
Taguchi method is a problem – solving tool which can improve the performanceof the product, process design and system. This method combines the experimental andanalytical concepts ... Read More ...Effect of Laser Surface Treatment on Wear Resistance of 100Cr6 Steel
Volume 27, Issue 6 , April 2009, Page 1151-1161
Abstract
The effect of laser surface heat treatment on wear resistance of 100Cr6 steel wasinvestigated. In this work, 100Cr6 steel which is widely used in many industrial of automobileshardened ... Read More ...Video Image for Security System by Using Chaotic Oscillator for Segmentation
Volume 27, Issue 6 , April 2009, Page 1162-1173
Abstract
There are wide variety of mechanisms available for performing the authenticationfunction. One of them is by using video film to monitor important places. In such systemsthe important ... Read More ...Correlation between Thickness, Grain Size and Optical Band Gap of CdI2 Film
Volume 27, Issue 6 , April 2009, Page 1174-1183
Abstract
Structural and optical property was studied as a function of film thickness forthermally evaporated CdI2 films. Stoichiometric films (up to 250 nm thickness) showinghexagonal structure, ... Read More ...Data Hiding in Sound Using Time Modulation of Unvoiced Blocks
Volume 27, Issue 6 , April 2009, Page 1184-1196
Abstract
This paper is concerned with hiding secret data in audio media file (.WAV). Whenperforming data hiding in audio, one must exploit the weaknesses of Human Auditory System(HAS), while ... Read More ...Studing The Mechanical Properties And Morphology of Ternary Blends Of Polyethylene
Volume 27, Issue 6 , April 2009, Page 1197-1205
Abstract
The mechanical properties and the morphology of the ternary blend ofLDPE/LLDPE/HDPE were studied.In the present work LDPE was mixed with equal amount of LLDPE and differentwt% of HDPE ... Read More ...A Data Base for Self-Compacting Concrete in Iraq
Volume 27, Issue 6 , April 2009, Page 1206-1218
Abstract
Self-Compacting Concrete is considered one of most remarkable developments inconcrete technology. It is a new type of high performance concrete with the ability offlowing under its ... Read More ...Behavior of Short Reinforced Porcelinite Concrete Columns Under Concentric Loads
Volume 27, Issue 6 , April 2009, Page 1219-1233