Volume 15 Issue 3

Published: 2025-06-25

Contents


Article
Improving the Throughput of a Network using VLAN Switch Techniques

Mohammed Basheer Abdullah, Dr. A.I. A. Jabbar,

AbstractHigh throughput with minimum delay is the ultimate demand being required from any network. Traffic congestion is the major problem that deteriorates the performance of a given network....

DOI: 10.33899/rengj.2007.45051

Pages: 33-49
Methods Of Crime Prevention Through Environmental Planning and Design

Maha Akram Sadala,

AbstractThe role of the architectural environment : Some modernization and immigration have accompanied the fast transferring from the traditional environment to the modern one. The complication of...

DOI: 10.33899/rengj.2007.45085

Pages: 61-77
Setting Of Distance Protection For Ehv Doubled Circuit Line By Using Quadrilateral Relay

Yousuf Mohammed Younis, Dr. Abdul Ghani A. Abdul Ghafoor,

This study describes the setting of distance protection for quadrilateral distance relay for double circuit lines which work at Extra High Voltage (EHV) by using (MATLAB SIMULINK) to simulate the...

DOI: 10.33899/rengj.2007.45073

Pages: 32-44
Study of Microstructure and Some Mechanical Properties of Ceramic Matrix Composite Material

Salim Aziz Kako,

AbstractThe aim of this research is to study microstructure and some mechanical properties of ceramic matrix composite material. Powder of Al2O3 was used as ceramic material after had been pressed...

DOI: 10.33899/rengj.2007.45070

Pages: 9-20
Investigation of Shear Response of Fibrous Reinforced Concrete Beams Using Incremental-Iterative Method

N. S. Al-Saffar, S. A. Al-Ta,

AbstractThe brittle nature of concrete leads to a brittle shear failure, which the designers try always to avoid by making the flexural strength of the member less than the shear strength. The...

DOI: 10.33899/rengj.2007.45048

Pages: 1-18
New Adaptive Non _ communication TL Protection Scheme with Three Phase Auto_Reclosing

Dr. M. F. Al-Kababjie, Dr. Nathim Sh. Rasool,

AbstractIn This paper a new adaptive non-communication method offers 100% Over Head Transmission Line fault clearance instantaneously, is presented. This Adaptive scheme adjusts distance Measuring...

DOI: 10.33899/rengj.2007.45053

Pages: 50-59
Effect of Coarse Aggregate Gradings on Some Properties of No-Fines Concrete

Hassan E. Al-Khatib, Khalid A. Zakaria,

The present work deals with the effect of graded coarse aggregates on some properties of no-fines concrete.Seven mixes of no-fines concrete having (1-6) (cement - coarse aggregate by weight) and...

DOI: 10.33899/rengj.2007.45058

Pages: 1-8
The Impact of Break-Through Streets on Changıng The Spatıal Confıguratıon Of Old Mosul

- -,

AbstractMosul is one of the cities that appeared before Islam. Later on it was reformulated according to the islamic planning principles. It remained a model of an arabic islamic city, till the...

DOI: 10.33899/rengj.2007.45089

Pages: 78-91
Air Pollution and Rainwater Properties in Mosul City

S. S. Abdelwahab, T. A. Mahmood, Riyadh M. Al-Obaidi,

Concentration and cumulative depositions of some major air pollutants (especially Lead Pb and Cadmium Cd ) was measured in six locations distributed with certain patern in Mosul city .It was...

DOI: 10.33899/rengj.2007.45072

Pages: 21-31
Matlab-Based Design and Implementation of Time-Frequency Analyzer

Soad Taha Abed, Abdul-Bary Raouf Sulaiman,

AbstractSpectrum analysis uses Fourier analysis for detecting the spectrum of a signal. The signals to be analyzed must be stationary that their spectra must not varying with time. For signals...

DOI: 10.33899/rengj.2007.45055

Pages: 60-72
Design of DAQ Card to Control the Speed of DC Motor Using ISA Slot

Firas Ahmed Alderzey, Dr. Abdelelah K. M,

Data acquisition card has been designed as a card connected to the industrial standard architecture (ISA) slot in the motherboard of a Pentium III personal computer in order to control the speed of...

DOI: 10.33899/rengj.2007.45082

Pages: 45-60
Optimal Reservoir Sizing for Small Scale Water Harvesting System at Al-Hader in Northren Iraq

Dr. Mohammad E. Mohammad, Dr. Ahmed Y. Hachum,

A procedure is presented for determining the optimum reservoir size for supplemental irrigation using Linear Programming technique. The volume of water stored depends on the available runoff during...

DOI: 10.33899/rengj.2007.45057

Pages: 83-97
Experimental Study of the Sound Insulation for the Building Materials in Iraq

Dr. S.M.J. Ali, Ziad M. Al-Makhyoul,

AbstractThe study of acoustic insulation for some materials which were used in most building is investigated in this paper to reduce the noise and distribance which generated from the different...

DOI: 10.33899/rengj.2007.45093

Pages: 92-100
Mathematical Modeling For Multi-Layer Optical Fibers

Dr. Manaf G. Said, Dr. Abdulghafoor I. Abdullah, Dr. Maan M.Shaker,

AbstractA mathematical model to solve a scalar wave equation based on weakly guiding approximation for multi-layer (or multi-step) optical fibers is numerically carried out. The suggested numerical...

DOI: 10.33899/rengj.2007.45056

Pages: 73-82