Number of Articles: 20
Effect of cooling rate of steel ( 25 Cr Mo4 ) on its hardness and microstructure
Volume 27, Issue 11 , August 2009, Page 348-363
Abstract
In this work , structural low – alloyed steel (25 Cr Mo4 ) was melted in mediumfrequency coreless induction furnace of (60) kgs . capacity , lined with highalumina lining powder ... Read More ...Reliability Measurement for Rotary Kiln Cement Kubaysa Factory
Volume 27, Issue 11 , August 2009, Page 364-380
Abstract
"Reliability" is one of engineering indicators for describing theperformance of an item or system by probability functions. Reliability is defined asthe probability that an item or ... Read More ...Night Illumination Design on Building aid the Architectural Creativity
Volume 27, Issue 11 , August 2009, Page 381-393
Abstract
Recent trends in night illumination designs for building have experienced specialroles in the architectural compositions. These roles were the prime factors in enhancingthe characters ... Read More ...Performance and design changes accompanying the replacing of an old cooling fluid(R12) with one which is safe on the Ozone layer ( R134a) in the cooling system of a small water cooler
Volume 27, Issue 11 , August 2009, Page 394-407
Abstract
Due to the spreading of cooling equipments that works with old coolingfluids(Freon) in the community,and because of the bad effects of these (Freon)incase of their spreading on the ... Read More ...Effect of Zirconia Addition on Some Physical and Mechanical Properties of Porcelain
Volume 27, Issue 11 , August 2009, Page 408-416
Abstract
This research includes the study of the effect of zirconia (ZrO2) additionin a different weight percentages (5,10,15,20)% to porcelain samples formedfrom (Duekhla Kaolin, Ardima Sand, ... Read More ...Determination of Yield Loci for (Al-2%Cu) sheets
Volume 27, Issue 11 , August 2009, Page 417-422
Abstract
This study concerns on the plastic behaviour of (Al-2%Cu) sheets undersimple tension, plane strain tension and balanced biaxial tension. Experimentalyield loci were extracted based ... Read More ...A Block Compression Method for Fingerprint Image Storing
Volume 27, Issue 11 , August 2009, Page 2165-2179
Abstract
Storage of fingerprint image databases needs allocation of huge secondarystorage devices. To reduce the increasing demand on storage space, efficient datacompression techniques are ... Read More ...Partition Method for Solving Boundary Value Problem Using B-Spline Functions
Volume 27, Issue 11 , August 2009, Page 2180-2188
Abstract
This paper is concerned with the approximated solution of linear two-pointsboundary value problem (LTPBVP) using Partition method with the aid of B-Splinefunctions as basis functions. ... Read More ...Secure and Energy Efficient Key Management Protocol for Ad hoc Sensor Network
Volume 27, Issue 11 , August 2009, Page 2189-2204
Abstract
Recent advances in wireless communications and electronics have helped to develop sensor nodes which are low-cost, low-power, multifunctional, small in size and communicate in short ... Read More ...Studying Curve Interpolator for CNC System
Volume 27, Issue 11 , August 2009, Page 2205-2222
Abstract
This thesis focuses on developing algorithm to calculate best length line segments in (u) and (w) directions. By of tool paths for free form surfaces based on the required accuracy ... Read More ...Electrical And Thermal Properties Of Epoxy Resin Filled With Carbon Black
Volume 27, Issue 11 , August 2009, Page 2223-2232
Abstract
Thermal and electrical conductivity of an insulating polymer can be achieved bydispersing conducting particles (e.g., metal, carbon black) in the polymer. The resulting materialsare ... Read More ...Environmental Effect on Fatigue and Lifetime of Silica Optical Fibers
Volume 27, Issue 11 , August 2009, Page 2233-2248
Abstract
Fiber optics as a transmission lines using for transmitting the signals and datainformation at minimum losses. It is using with modem communication which has thehigh immunity to' electromagnetic ... Read More ...Multidimensional Graphics Implementation Using DirectX API Class Library
Volume 27, Issue 11 , August 2009, Page 2249-2258
Abstract
Several techniques or capabilities are provided by DirectX, each of whichcan add effects on the designed graphics by using special functions in theapplication or program that written ... Read More ...Taguchi Approach to Optimize Pack Aluminization Parameters in Carbon Steel Using MINITAB13
Volume 27, Issue 11 , August 2009, Page 2259-2272
Abstract
Pack aluminization has been rapidly developed and widely used in many fieldsdue to its superior properties of coating. Surface is the only part of the componentwhich has to coexist ... Read More ...A Comparison Between The Wear Rate Behavior Of Polyester Reinforced By Glass And Kevlar Fibers
Volume 27, Issue 11 , August 2009, Page 2273-2285
Abstract
In this research the wear rate of the polyester reinforced by chopped glassfibers and chopped Kevlar fibers with length (1-2.5 mm) and weight fraction (4, 8, 12,16 WT %) has been investigated. ... Read More ...Physical Properties of MOS Porous Silicon Detector Fabricated under RTO Method
Volume 27, Issue 11 , August 2009, Page 2286-2291
Abstract
In this research we studying the sensitivity of a porous silicon photo detector, wefound it improved through rapid thermal oxidation processes. Under our optimumpreparation conditions, ... Read More ...Comparison Study between the Use of Plastic and Concrete Pipes for Redesign and Reconstruction of Sanitary Sewer Network in Baghdad City (Hay Al Karadda –Sections 903-905)
Volume 27, Issue 11 , August 2009, Page 2292-2304
Abstract
Over the recent years, the emphasis on sewerage has increasinglyswitched from provision of new services to maintenance of existing service atacceptable levels. As a consequence the ... Read More ...Analysis and design of PID Control System for Active Magnetic Bearings
Volume 27, Issue 11 , August 2009, Page 2305-2320
Abstract
Active magnetic bearings (AMB) are unstable by their nature and are used in veryhigh-speed applications, therefore the design and implementation of a suitable control systemfor such ... Read More ...Boundary Element Analysis of Capped Pile Groups
Volume 27, Issue 11 , August 2009, Page 2321-2334
Abstract
The boundary element method (BEM) has become one of the most powerfulnumerical techniques which has already established itself within the scientificcommunity. The most striking feature ... Read More ...Growth Kinetics of Chemically Deposited CdO Thin Films
Volume 27, Issue 11 , August 2009, Page 2335-2344