Volume 13 Issue 1

Published: 2025-06-25

Contents


Article
COEFFICIENT OF DISCHARGE OF CHIMNEY WEIR UNDER FREE AND SUBMERGED FLOW CONDITIONS

Hanaa A .M.Hayawi, Amal A.G.Yahya, Ghania A.M.Hayawi,

Abstract:The main objective of this investigation is to study experimentally the water surfaceprofiles and to obtain convenient expressions for the estimation of dischargecoefficients (Cd) for free...

DOI: 10.33899/rengj.2005.45573

Pages: 62-69
THE MEMORIZATION BEHAVIORS OF DIFFERENT MIOS STRUCTURES

L. S. ALI, W. F. MOHAMAD,

ABSTRACT: In this chapter the various kinds of charge storage cells are discussedas a result of examining many samples with different structures. The C-V, I-V and R-Vmeasurements of the structures...

DOI: 10.33899/rengj.2005.45562

Pages: 17-24
VIBRATIONAL CHARACTERISTICS OF A ROTATING SHAFT CONTAINING A TRANSVERSE CRACK

MOHAMMED NAJEEB AL-RAWI, ZIAD SHAKEEB AL-SARRAF, Dr. SABAH MOHAMMED JAMEL,

ABSTRACT:The influence of a transverse crack upon the dynamic behavior of a rotatingshaft is studied. Introduction of such a crack results in lower transverse naturalfrequencies due to the added...

DOI: 10.33899/rengj.2005.45557

Pages: 1-16
The Effect of the Rail Materials and the Superconducting Coils on the Lifting Force of the Magnetically Leviated Trains

Bassam M. Mustafa,

been studied the effect of the rail materials and thesuperconducting coils on the lifting force of the magnetically leviated trains.Concentration on the Super-conducting coils for creation of the...

DOI: 10.33899/rengj.2005.45578

Pages: 18-32
Characteristics of Flow Over Normal and Oblique Weirs With Semicircular Crests

Tahssen A. H. Chilmeran, Bhzad M. A. Noori,

characteristics of free flow over normal and obliqueweirs with semicircular crests are studied experimentally. For this purpose, forty eightweir models were constructed and tested. The first twelve...

DOI: 10.33899/rengj.2005.45568

Pages: 49-61
Bifurcation and Voltage C ollapse in the Electrical Power Systems

Mr. Ahmed N. B. Alsammak

Voltage stability is indeed a dynamic problem. Dynamic analysis isimportant for a better understanding of voltage instability process. In this workan analysis of voltage stability from bifurcation...

DOI: 10.33899/rengj.2005.45565

Pages: 25-41
Microprocessor-Based Controller for the Uninterruptible Power Supply Voltage Regulation

Prof. Basil M. Saied, Mr. Mohamad K. Shakfa,

AbstractGood regulation and stability are important factors to be considered indesigning of the uninterruptible power supplies systems, which depend on the loadrequirements. On the other side, the...

DOI: 10.33899/rengj.2005.45576

Pages: 1-17
Modeling Deficit Irrigation Water Requirement For Maize in Mosul Region

Dr.Anmar A.AL-Talib, Dr. Abdul Sattar Y.AL-Dabagh, Ahmed A.AL-Neami,

AbstractA computerized model with (Microsoft QuickBasic version 1.1) was proposedfor simulating the effect of deficit irrigation for maize crop during spring and autumnseasons in Mosul region. The...

DOI: 10.33899/rengj.2005.45581

Pages: 33-42