Volume 23 Issue 1
Published: 2025-06-25
Contents
Article
Effect of Airports Elevation on the Jet Engine Thrust (Off – Design Operation)
Khalid Ibrahim Hasan,
AbstractIt is well known that airport elevation with respect to sea level has a considerable effect on the jet engine thrust. In this study an airplane type (Viperjet, Learjet) with jet engine type...
DOI: 10.33899/rengj.2015.101030
Laboratory Study For Estimating The Removing Sediment From Upstream Weirs Using Bottom Outlets
Moayad S. Khaleel, Akram Kh. Mohammed,
In this research, a series of laboratory experiments were carried out to estimatethe removing sediment amount from upstream weirs using bottom outlets. Theexperiments were conducted in a laboratory...
DOI: 10.33899/rengj.2015.101028
Design of Broadband Microstrip Patch Antenna for WLAN/WiMAX Applications
Yessar E. Mohammed Ali, Khalid A. Sultan Jasim,
AbstractIn this paper design of a broadband printed microstrip patch antennasuitable for wireless communication (WLAN/WiMAX) applications is presented. The antenna occupies small size of...
DOI: 10.33899/rengj.2015.101047
Effect of Organic, Nitrogenous and Phosphorus Loads Variation onthe Removal Efficiency of Organic and Nutrients Pollutants In Duckweed Based Wastewater Stabilization Ponds
Kossay K. Al-Ahmady, Zena A. AL-Shrefy,
In this research, an experimental laboratory plant was constructed in order to evaluate the effect of organic, nitrogenous and phosphorus loads on the removal efficiency and behavior of duckweed...
DOI: 10.33899/rengj.2015.101022
Investigation the natural convection heat transfer between two fluids inside square enclosure separated by thin plate
Amir S. Dawood, Raed Ahmed Ali, Ramiz Ibraheem Saeed,
Fluid flow and heat transfer in a square enclosure diagonally divided by a conductive thin plate has been numerically investigated. The upper diagonal zone of the enclosure filled with a saturated...
DOI: 10.33899/rengj.2015.101040
Influence of Radiation on Non-Darcy Mixed Convection Along a Non-Isothermal Vertical Plate in a Porous Medium With Thermal Dispersion and Viscous Dissipation
Saddam Atteyia Mohammad,
AbstractA boundary layer analysis is presented for the interaction of non-Darcy mixed convection with thermal radiation along a non-isothermal vertical flat plate embedded in a saturated porous...
DOI: 10.33899/rengj.2015.101032
Effect of Main Channel Roughness on The Branching Flow
Nashwan K. Alomari, Khalid Y. Taha, Moayed S. Khaleel,
The work concerns a laboratory study to investigate the effect of changing the bed roughness of the main channel on the branching discharge and separation zone formed in the main channel as a...
DOI: 10.33899/rengj.2015.101027
Effect of Intermittent Feeding on the Performance of Plug Flow Activated Sludge System under Different Hydraulic Retention Times
Kossay K. Al-Ahmady, Enas Ahmad Kader AL-Taee,
In this research, the effect of intermittent feeding on the efficiency of plug flow activated sludge reactors has been studied. An experimental plant has been constructed and operated. The plant...
DOI: 10.33899/rengj.2015.101021
Ultrasonic Attenuation of (Al-SiC) Particulate Aluminum Matrix Composite
Awad Hallosh Khidhir, Qussay Younis Hamid,
The present research deals with preparing (11) samples of composite materials with metal matrix represented by Aluminum alloy (AA3003)cast and particulate reinforced by (SiC) having particlesvolume...
DOI: 10.33899/rengj.2015.101024
An Efficient Algorithm for Eye Detection in Faces Images
Luqman Sufer Ali, Hussein Mohammed Hussein,
Human Eyes detection is one of the significant difficulties in computer vision. Eye detection utilized in medical applications and computer control system for people with special needs. In this...
DOI: 10.33899/rengj.2015.101023
Optical Fiber Nonlinearity Estimation Through Four-Wave Mixing
Tariq A. Al-Jumailly,
AbstractOptical wavelength converters are very important devices in opticalDense Wavelength Division Multiplexing (DWDM) Systems. Among numerous wavelength technologiesFour-Wave Mixing (FWM)in...
DOI: 10.33899/rengj.2015.101048
SIMULATION OF DS-CDMA PERFORMANCE ESTIMATION USING VISSIM/COMM SOFTWARE
Husham J. A. Alqaysi,
The focus of this paper is to implement a simulator for the Direct Sequence - Code Division Multiple Access (DS-CDMA) communication system and test its performance against certain parameters using...
DOI: 10.33899/rengj.2015.101046
A preparation and Characterization of Functionally Graded Aluminum Alloy Based Composite Via Casting Route
Abdulhaqq A. Hamid, Mohammed M. Abdullah,
In the current study, stir and centrifugal casting apparatus have been designed and constructed for the preparation of cast functionally graded aluminium alloy(AA4043) based composites containing...
DOI: 10.33899/rengj.2015.101044
