Volume 23 Issue 2

Published: 2025-06-25

Contents


Article
The Effect of Mold Rotational Speed on Mechanical Properties of Functionally Graded Polymeric Matrix Composites

Ahmed Akram Abdullah, Awad Hallosh Khidhir,

In this research, a functionally graded polymeric matrix composites (FGPMCs) were produced using centrifugal casting method. These composites were fabricated from unsaturated polyester resin as a...

DOI: 10.33899/rengj.2015.101070

Pages: 1-12
Practical Analysis for Studying the Effect of Both Depth and Soil types on the Stresses Generated on the draw-bar During Plowing Process

Shamil M. Hassan,

A study was conducted for the purpose of determining the stresses generated on the draw-bar as a result of different types of soil and depth produced during plowing process in two different...

DOI: 10.33899/rengj.2015.101071

Pages: 13-19
Mechanical Properties of Wood Shavings-Cement Lightweight Composites

Emdad K. ZEYNAL, Dr. Moayad M.Kasim,

AbstractThe use of wood shavings, as a recycled waste product from the wood furniture industries is an interesting technique to produce lightweight cement composites. This study aims at examining...

DOI: 10.33899/rengj.2015.101083

Pages: 179-186
Effect of Some Operating Parameters on the Performance of Ballasted Flocculation Technique for Water Treatment

Ahmed Yasoob, Suhair Kharrufa, Suaad Abbawi,

The study aimed to apply the concept of Ballasted Flocculation (BF) at modified jar test for different turbidities for Tigris rivers raw water in order to find out the optimum values for each of...

DOI: 10.33899/rengj.2015.101075

Pages: 56-72
Estimation of Model Parameters, for Torsional Vibration Analysis ofa Turbo-Generator Unit with Reference to Mosul Gas-Turbine Station

Dr.F. Q. Yahya, Dr.Z. Y. Mohammad, Dr.S. M. Ali,

In the design stage or analysis of any dynamical system a detailed or comprehensive model is essentially required. In this work, different parts and components that are contained in the model of a...

DOI: 10.33899/rengj.2015.101077

Pages: 91-116
Optimum design of a heat pipe

Mohammad S. Aldabbagh,

This research deals with the optimum design of the heat pipe components using Matlab program, version 7, at the determined operating conditions. The heat pipe is used to transfer maximum available...

DOI: 10.33899/rengj.2015.101079

Pages: 133-146
Study of the Ultrasonic Behavior in (α + β`) Brass Alloy

Mohammed Shaalan Abed Fathi,

Copper is one of the few metals with significant commercial uses. Although frequently used as a pure metal or with small amounts of metal additives, copper can form 82 binary alloys. Two of the...

DOI: 10.33899/rengj.2015.101080

Pages: 147-152
Considering the Spatial Adjacency and Syntactic Properties Affecting the Functional Performance of the Socially Sustainable Schools in Iraq

Tara A. Abbo Al-Yase, Dr. Ali H. Al-Jameel,

The socially sustainable school is an emergent conceptappearedwithin the context of many significant changes in the world schools designs.Also, the functional performance is considered as a...

DOI: 10.33899/rengj.2015.101076

Pages: 73-90
Pipelined Parallel Implementation of CryptosystemsBased on Advanced Encryption Standard

Israa G. Mohammed, Shifaa A. Dawood,

A hardware architecture implementation of Advanced Encryption Standard (AES) is globally adopted to encrypt data for variant communications systems, taking into account that AES is reliable,...

DOI: 10.33899/rengj.2015.101074

Pages: 44-55
Numerical study of natural convection heat transfer from a heater placed in an enclosure with adjacent inclined sidewall

Ramiz I. Al-Abushi,

In this investigation , natural convection heat transfer from a heater placed on the bottom of a square enclosure with adjacent inclined wall was carried out . The inclined wall has a constant...

DOI: 10.33899/rengj.2015.101078

Pages: 117-132
Laboratory Study of Flow Characteristics Over Piano Key Weir

Bushra M. Ali, Hana A. Hayawi,

The main objective of this investigation is to obtain performance efficiency and the coefficient of discharge for Piano Key weir with downstream overhang. One hundred thirty five experimentswere...

DOI: 10.33899/rengj.2015.101072

Pages: 20-30
Evaluating performance of Hydrus-1D model in simulating evaporation from soil surface for different wetting intervals

Muzahim M. Abid, Eftikhar A. Alani, Entesar M. Ghazal,

In this study, Hydrus-1D model was used to simulate the evaporation from the soil surface for different wetting intervals for northern region(sandy loam and clay loam) using input for climatic data...

DOI: 10.33899/rengj.2015.101073

Pages: 31-43
Neuro-Fuzzy Based ECG Signal Classification with A Gaussian Derivative Filter

H. N. Yahya, S. N. M. Al-Faydi, Dr. J. M. Abdul-Jabbar,

In this paper, a neuro-fuzzy classification method is used for identifications of ECG signals. A feature extraction method with a QRS like filter (first order Gaussian derivative filter) is used....

DOI: 10.33899/rengj.2015.101081

Pages: 153-166
RAM-Based Neural Network Parallel Implementation on a Reconfigurable Platform and Its Application for Handwritten Digits Recognition

Shefa A. Dawwd, Ali Al-Saegh

Artificial neural networks (ANNs) are widely used in different areas of nowadays applications. Many challenges are imposed on the practical implementation of ANNs. Some of them are: the number of...

DOI: 10.33899/rengj.2015.101082

Pages: 167-178
Experimental study of lightweight concrete used for the production of canoe

Dr.Eethar Thanon Dawood,

AbstractThis study was conducted to investigate the properties of lightweight concrete produced by the inclusions of polystyrene beads and perlite that can be used for production of Canoe.Different...

DOI: 10.33899/rengj.2015.101085

Pages: 187-197