Number of Articles: 20
The Architectural Development in Baghdad's house's elevations"an analytical study in Baghdad's house's elevations at twentieth century
Volume 27, Issue 7 , May 2009, Page 234-249
Abstract
The Architecture is a cultural monumental . It has its action's and reactions and its position and historical distance . The house , as it concern , one of the Architectural Phenomenon ... Read More ...Using Al2O3-Mgo-PSZ ceramic system in cutting tools manufacturing
Volume 27, Issue 7 , May 2009, Page 250-257
Abstract
Recent advance in high-speed cutting materials have focused on reinforcingalumina with different carbides and nitrides in order to improve hardness and fracturetoughness, this composites ... Read More ...Effect of Pb and Sn Adding on Dry Sliding Wear Behavior of á-Brass (70/30)
Volume 27, Issue 7 , May 2009, Page 258-268
Abstract
This work is concerned with a study of dry sliding wear of α–Brass (70/30) withaddition of lead and tin(3%wt) for each one alloy. Three brass alloys were prepared bymelting ... Read More ...Design and Simulation of Microwave Oscillator
Volume 27, Issue 7 , May 2009, Page 1234-1246
Abstract
This paper is concerned with the design and simulation of fixed frequency microwaveoscillator. Scattering parameters of the active device (MESFET-Afm02n8b) are used todesign and synthesize ... Read More ...Evaluation of Elastic Deflections and Bending Moments for Orthotropically Reinforced Concrete Rectangular slabs Supported on Three Edges Only
Volume 27, Issue 7 , May 2009, Page 1247-1259
Abstract
This paper deals with the evaluation of the elastic deflections and bending momentsfor orthotropically reinforced concrete rectangular slabs supported on three variouslyrestrained edges ... Read More ...Design and Implementation of a High Resolution Two Counter Digital Pulse Width Modulation
Volume 27, Issue 7 , May 2009, Page 1260-1269
Abstract
This paper presents a high resolution Digital Pulse Width Modulation "DPWM" for thevoltage regulator application. The PWM signal is generated by using two fast clockcounters. In this ... Read More ...On The Effect of Flow Direction on Mixed Convection Around Heated Circular Cylinder
Volume 27, Issue 7 , May 2009, Page 1270-1279
Abstract
A numerical investigation of laminar mixed convection around horizontal isothermalcylinder is presented. The free stream direction varies between the vertically upward(assisting flow) ... Read More ...Radiation Performance Evaluation of Microstrip Antenna Covered With a Dielectric Layer
Volume 27, Issue 7 , May 2009, Page 1280-1286
Abstract
In this paper, a comprehensive investigation of a microstrip antennaperformance covered with a dielectric layer has been presented. An aperturecoupled antenna has been designed as a ... Read More ...Job-Shop Sequencing Real Life Problem With Setup Time
Volume 27, Issue 7 , May 2009, Page 1287-1300
Abstract
In this paper, we analyzed the sequencing situations on two machines where the machinesetup time is not independent of processing order.A real case study of Hadhramout Industrial Company ... Read More ...Reaction Kinetic ofá-methylstyrene (AMS) Hydrogenation
Volume 27, Issue 7 , May 2009, Page 1301-1316
Abstract
In this research hydrogenation kinetic of alpha-methylstyrene (AMS) on Pd/Al2O3catalyst was studied. The reaction is mildly exothermic (ÄH=-109 kJ/mol). Intrinsickinetic law was ... Read More ...Electrical Properties of Ba,Ho Doped PbI2
Volume 27, Issue 7 , May 2009, Page 1317-1323
Abstract
Barium and Holmium have been introduced into polycrystalline lead iodide duringsolution growth of thin films. Electrical characterization (current vs. voltage measurements ,resistivity, ... Read More ...Remote ECG Signal Monitoring Via Internet
Volume 27, Issue 7 , May 2009, Page 1324-1335
Abstract
In this paper the Internet was used as a media for transmission an ECG (Electro-Cardio-gram) signal from a patient directly to a remotely reside doctor or consultant whowill respond ... Read More ...Studies Pressure Drop of gas-Non-Newtonian Liquid Two Phase Flow in Bubble Column
Volume 27, Issue 7 , May 2009, Page 1336-1350
Abstract
An exclusive study has been done on experimental investigation of the two-phase flowpressure drop in an air-non-Newtonian liquid (CMC solutions) system in bubble column.The effects ... Read More ...Aircraft Dutch Roll and State Variables Analysis Using Yaw Damper and Washout Filter
Volume 27, Issue 7 , May 2009, Page 1351-1369
Abstract
Many high performance aircraft suffer from a dynamic instability problem at relativelyhigh Mach number and altitude regimes known as Dutch roll instability. In this study theaircraft ... Read More ...A New Compact Dual Band GPS Patch Antenna Design Based on Minkowski-Like Pre-Fractal Geometry
Volume 27, Issue 7 , May 2009, Page 1370-1375
Abstract
A low profile compact microstrip antenna for GPS (L1/L2) application has beenpresented in this paper. The proposed antenna design is based on the 3rd iterationMinkowski-like pre-fractal ... Read More ...Offline Signature Recognition and Verification Based on Artifical Neural Network
Volume 27, Issue 7 , May 2009, Page 1376-1384
Abstract
In this paper, a problem for Offline Signature Recognition and Verification is presented. Asystem is designed based on two neural networks classifier and three powerful features (global,texture ... Read More ...Numerical Study of Forced Convection in Wavy and Diverged-Converged Ducts
Volume 27, Issue 7 , May 2009, Page 1385-1403
Abstract
A three-dimensional study of developing fluid flow and heat transfer throughwavy and diverged-converged ducts were studied numerically for a Prandlt number 0.7and 5.85 and compared ... Read More ...Behaviour of Encased Floating Stone Columns
Volume 27, Issue 7 , May 2009, Page 1404-1421
Abstract
In this paper, the finite element method is utilized as a tool for carrying out differentanalyses of stone column–soil systems under different conditions. A trial is made toimprove ... Read More ...A study of the Hardness and Wear Rate of Elastomer Composites Reinforced by Al2O3 and SiO2 Particles
Volume 27, Issue 7 , May 2009, Page 1422-1434
Abstract
This research deals with the study the effect of adding the silica particles andalumina particles separately with different ratio (5, 10, 15, 20, and 25 pphr) on thehardness and wear ... Read More ...State Estimation of Two-Phase Permanent Magnet Synchronous Motor
Volume 27, Issue 7 , May 2009, Page 1435-1443