Number of Articles: 20
Treatment of Soft Soil by Sand Columns
Volume 32, Issue 9 , September 2014, Page 2106-2118
Abstract
Stone or sand columns are most widely used to improve the engineering properties of soft saturated soils. In principles, sand columns technique is very close to the well-known stone ... Read More ...The Mechanical and Thermal Properties of Polymer Hybrid Composite Reinforced by Rice Husk Ash at Different Conditions
Volume 32, Issue 9 , September 2014, Page 2119-2133
Abstract
This research was carried out to study the effect of natural and calcined temperature of rice husk ash with selected temperature (900,1100,1300oC) on the mechanical and thermal properties ... Read More ...Life-Cycle Cost Analysis for Three Different Types of A/C Systems Applied on an Apartment Located in a Multi-Floors Residential Tower in Mosul City
Volume 32, Issue 9 , September 2014, Page 2134-1147
Abstract
This research studies the life cycle cost analysis using detailed cooling and electrical load profiles to calculate initial and running costs to evaluate the economic feasibilities ... Read More ...Experimental and Finite Element Analysis on Rounded Corners Square Shape Tube Hydroforming Process
Volume 32, Issue 9 , September 2014, Page 2148-2164
Abstract
Tube hydroforming is a forming process where an inner pressure combined with axial feeding deforms the tube to the shape of a die cavity, i.e. the process state where the hardening ... Read More ...Gain Characteristics for C-Band Erbium Doped Fiber Amplifier Utilizing Single and Double-Pass Configurations: A Comparative Study
Volume 32, Issue 9 , September 2014, Page 2165-2173
Abstract
An erbium doped fiber amplifier in the conventional communication window utilizing single and double pump pass configurations were demonstrated and compared using OptiSystem 12 software. ... Read More ...Evaluation the Hydraulic Aspects of Stepped Labyrinth Spillway
Volume 32, Issue 9 , September 2014, Page 2174-2185
Abstract
This study was adopted a new concept to enhance performance of stepped spillway towards more dissipation of kinetic energy along chute face through increases interlocking surface areas ... Read More ...Investigation into Deformation Monitoring of Mosul Dam
Volume 32, Issue 9 , September 2014, Page 2186-2195
Abstract
It is crucial to monitor the deformation of dams for saving lives and properties, economy and the environment. Many critical observables have to be studied on the dam and the near vicinity. ... Read More ...Kinematics Analysis of 5250 Lab-Volt 5-DOF Robot Arm
Volume 32, Issue 9 , September 2014, Page 2196-2204
Abstract
This paper presents for the first time a complete kinematic analysis of 5250 Lab-Volt 5-Dof robot which include both forward kinematics and inverse kinematics for this robot arm. The ... Read More ...Effect of Quenching Media on the Mechanical Properties and Abrasive Wear Resistance of (34Cr4) Steel Blade with Soil Texture Used in Agricultural Equipments
Volume 32, Issue 9 , September 2014, Page 2205-2215
Abstract
In this paper, a study the effect of quenching media on the mechanical properties and abrasive wear has been done on steel blade (34Cr4) for agriculture equipment with soil texture. ... Read More ...The Influence of Injection Timing on Combustion and Emission Characteristics of HSDI Diesel Engine
Volume 32, Issue 9 , September 2014, Page 2216-2234
Abstract
An attempt has been made to study the combustion and emission characteristics of ultra-low diesel fuel for high speed direct injection ( HSDI) diesel engine at different fuel injection ... Read More ...Numerically and Experimentally Studying of some Mechanical Properties of the Polyester Matrix Composite Material Reinforced by Jute Fibers
Volume 32, Issue 9 , September 2014, Page 2235-2247
Abstract
This research focuses on the preparation of polymer matrix composite material by (hand lay – up) method, where the material (rectangular beam) was prepared from unsaturated polyester ... Read More ...Analysis of the Capacity, Spectral Efficiency and Probability of Outage of Adaptive Mobile Channel for WiMAX System
Volume 32, Issue 9 , September 2014, Page 2248-2267
Abstract
This paper presents an analysis of the channel capacity, spectral efficiency and probability of outage for the 4th generation adaptive modulation ofWiMAX system. The adaptive modulation ... Read More ...Characterizations of Semi-Silica Refractory Bricks Produced from Local Iraqi Materials
Volume 32, Issue 9 , September 2014, Page 2268-2276
Abstract
This research was carried out to investigate the suitability of locally white sand and Dwaikhla clay (Kaolin) for manufacture of semi-silica refractory bricks as thermal insulators ... Read More ...Estimating Reference Evapo- transpiration in Mosul (Iraq) Using Cascade Neural Networks
Volume 32, Issue 9 , September 2014, Page 2277-2285
Abstract
Recently artificial neural network (ANN) has been applied for estimating reference evapo-transpiration (ETₒ).In this study a mathematical model was built by application the cascade ... Read More ...Fabrication, Characterization and Modeling of Al2o3/Ni Functionally Graded Materials
Volume 32, Issue 9 , September 2014, Page 2286-2302
Abstract
Functionally graded materials (FGMs), with ceramic and metallic constituents, are frequently used for tremendous high temperature applications. In this paper, six sets of FGMs samples ... Read More ...Fabrication and Characterization of ZnO Gas Sensor
Volume 32, Issue 9 , September 2014, Page 2303-2312
Abstract
In this paper thin films of zinc oxide ZnO was prepared by spray pyrolyess method with thickness were about ( 0.1 ±0.05 µm) on n-type silicon substrates at different deposition ... Read More ...Influence of Power Density and Exposure Time on Laser Drilling Hole
Volume 32, Issue 9 , September 2014, Page 2313-2321
Abstract
laser drilling play an important role in special applications with high accuracy dimensions, this paper was focused on two types of ceramics; aluminum oxide (Al2O3) and zinc oxide (ZnO) ... Read More ...Design of Circular Printed Slot Antenna for Multiband Wireless Communication Applications
Volume 32, Issue 9 , September 2014, Page 2322-2330
Abstract
In this paper, a printed antenna with circular slot is presented as a candidate for use in multiband wireless communication applications. The slot structure of the proposed antenna ... Read More ...The Effect of the Addition of Natural Rubber to (U-PTE) Resin on some Mechanical Properties
Volume 32, Issue 9 , September 2014, Page 304-310
Abstract
In this research polymer was prepared from Alkyd resin (U-PTE) with ratio 100% the and natural rubber with ratio 30%. The mixing process was performed by hand lay-up method. Some mechanical ... Read More ...Using of Statistical Methods to Determine The Defects Cost Affected on The Product Data and Forecast Losses for Decision-Making
Volume 32, Issue 9 , September 2014, Page 311-323