Volume 19 Issue 6

Published: 2025-06-25

Contents


Article
ANN Model for Predicting Ultimate Shear Strength of Reinforced Concrete Corbels

Abdalkader A. Mohammed, Dr. Salim T. Yousif,

ABSTRACTThe artificial neural network (ANN) model was developed using previous experimental data on Reinforced concrete (RC) corbels to simulate the behavior of RC corbels. The neural network model...

DOI: 10.33899/rengj.2011.26615

Pages: 112-123
Optimal Power Flow Solution with Maximum Voltage Stability

Dr. Ahmed Nasser B. Alsammak,

AbstractThis paper presents an Optimal Power Flow (OPF) formulation that is based on multi-objective optimization methodology, which can minimize both of operating costs and losses and it would at...

DOI: 10.33899/rengj.2011.26606

Pages: 40-53
Performance Evaluation of Soft Handover in WCDMA System

S.H. Fasola, S.A. Mawjoud,

Abstract In this paper soft handover parameters in WCDMA system are investigated. They include the effect of imperfect power control on the downlink capacity and power assignment to the mobile...

DOI: 10.33899/rengj.2011.26582

Pages: 1-14
Nonlinear Coupled Finite Element Analysis of A Dam-Reserviour Under Dynamic Loading

Dr. O. F. S. Al-Damluji, Dr.A. Y. Th. Al-Saaty, Dr.R. M. Al-Nuaimi

ABSTRACTThis research presents a nonlinear coupled analysis of a dam-reserviour problem with aspects of class I coupling for fluid-structure interaction and class II coupling for soil-pore...

DOI: 10.33899/rengj.2011.26613

Pages: 91-111
A Study For Refrigerant's Characteristics to Choose the Optimum For Ejector Refrigeration System

Mohammad S. Al - Dabbagh, Dr. Adnan M. Al Saffawi,

AbstractRefrigeration systems needs efficient refrigerant to perform it's determined objective, so, an optimum refrigerant, must have a good and desirable characteristics as compared with other...

DOI: 10.33899/rengj.2011.26568

Pages: 16-29
Microcontroller Based Maximum Power Point Tracking For Photovoltaic Solar Panel

Museeb M. Jasim, Kamil G. Salih, Rasha E. Majed,

AbstractMany papers are published in the past and at present time which operate the solar photovoltaic (PV) panel at its maximum power point, by implementing an analogue or digital electronic...

DOI: 10.33899/rengj.2011.26604

Pages: 26-39
Fatigue Behavior of Al – 4wt%Cu / SiCP and Al - 4wt%Cu/ Al2O3P Composites

Salim Aziz Kako,

AbstractAluminum copper ( Al 4wt%Cu ) alloy metal matrix composites MMCs reinforced with 0.5 ,1.0 ,1.5 % wt of both SiC and Al2O3 particles were fabricated by stir-casting .The effects of SiC and...

DOI: 10.33899/rengj.2011.26607

Pages: 54-61
Best Wavelet Filter for a Wavelet Neural Fricatives Recognition System

Dr. Ahmed Maamoon Alkababji,

AbstractDirect recognition of phonemes in speaker independent speech recognition systems still cannot guarantee good enough recognition results. But grouping phonemes at first then trying to...

DOI: 10.33899/rengj.2011.26617

Pages: 138-150
Experimental Study into Effect of Developing Section Length on The Heat Transfer Process in a Horizontal Annulus

Dr. Akeel A. Mohammed, Ameer A. Jadoaa,

ABSTRACTAn experimental investigation has been presented to study the heat transfer process in thermally developed region of horizontal concentric annulus with an adiabatic inner tube and uniformly...

DOI: 10.33899/rengj.2011.26608

Pages: 62-72
Effect of Ultrasonic Waves on Sedimentation Characteristics and sludge Dewaterability

Ahmed Yassin Shehab,

AbstractThis paper studied the effect of ultrasonic waves on sedimentation characteristic of activated sludge and there causes on filamentous growth, as well as its effects on the sludge ability...

DOI: 10.33899/rengj.2011.26569

Pages: 30-39
Theoretical and Experimental Results of Substrate Effects on Microstrip Power Divider Designs

Dr. Asaad M. Jassim Al-Hindawi, Suhair M. Al- Ali,

ABSTRACTThe effects of substrate materials on the design of microstrip power divider are investigated theoretically and experimentally. Three different dielectric substrate materials are chosen ;...

DOI: 10.33899/rengj.2011.26603

Pages: 15-25
Effect of Magnetizing the Fuel on the Performance of an S.I. Engine

Dr. A. R. A. Habbo, Raad A. Khalil, Hassan S. Hammoodi,

AbstractThe aim of this study is to investigate the effect of the magnetized fuel on the perfor-mance of spark ignition engine. The engine performance was observed by examining the engine brake...

DOI: 10.33899/rengj.2011.26611

Pages: 84-90
The Effect of Impinging Jet on the Flow and Heat Transfer from Isothermal Moving Plate

Dr. Ahmed Waheed Mustafa,

AbstractThe effect of impinging uniform jet on flow and heat transfer over isothermal moving plate is investigated. The flow and temperature fields are studied numerically with different jet...

DOI: 10.33899/rengj.2011.26609

Pages: 73-83
AC Current Harmonics Reduction& improve the power factor for Single Phase controlled Rectifiers Using Current Injection Method

Aasef. A.Saleh, Basil M.Saied, Hussein I.Zynal,

AbstractThe AC electrical distribution system works at limited values of voltage and frequency levels. The increase of using non linear loads and loads those connected by electronic keys produces...

DOI: 10.33899/rengj.2011.26565

Pages: 1-15
Design and FPGA Implementations of Four Orthogonal DWT Filter Banks Using Lattice Structures

Zainab R. S. Al-Omary, Dr. Jassim M. Abdul-Jabbar,

AbstractIn this paper, lattice structures for DWT are introduced through the design and FPGA implementations of the orthogonal Daubechies filter banks of orders 2, 4, 6 and 8. Multipliers and...

DOI: 10.33899/rengj.2011.26616

Pages: 124-137