Volume 1 Issue 2
Published: 2004-12-01
Contents
Research Paper
On Regularity and Flatness
Nazar H. Shuker
A ring R is called a right SF-ring if all its simple right R-modules are flat. It is well known that Von Neumann regular rings are right and left SF-rings. In this paper we study conditions under...
DOI: 10.33899/csmj.2004.164107
A New Non Quadratic Model For Unconstrained Non Linear Optimization
Nidhal H. Al-Assady, Basim A. Hassan
A new non-quadratic model is proposed for solving unconstrained optimization problems, which modifies and develops the classical conjugate gradient methods. The technique has the same properties as...
DOI: 10.33899/csmj.2004.164108
Stability Analysis for Fluid Flow between Two Infinite Parallel Plates II
Mahdi F. Mosa, Abdo M. Ali
A model of fluid flow with heat transfer by conduction , convection and radiation has been discussed for stability with respect to restricted parameters (k,a,r,T*) which are proportional to: wave...
DOI: 10.33899/csmj.2004.164109
On Generalized PF – Rings
Nazar H. Shuker, Husam Q. Mohammad
The aim of this paper is to extend several known results on GPF rings. -regular rings, PF-rings and GP-ideals are also considered. Among other results we prove that: If R is a uniform ring, then R...
DOI: 10.33899/csmj.2004.164110
New Parallel Algorithms for BVPs in ODEs
Bashir M. Khalaf
The main objective of this paper is the development of a new parallel integration algorithm for Solving Boundary Value Problem (BVPs) in Ordinary Differential Equation, (ODEs). This algorithm is...
DOI: 10.33899/csmj.2004.164111
Modification of Non-Linear Constrained Optimization
Ban Ahmed Mitras
In this paper we have investigated a new initial parameter, the new parameter is to make balance between interior suitable for inequality constrained exterior method (suitable for equality and...
DOI: 10.33899/csmj.2004.164112
Parallel Implicit Runge-Kutta Methods for Stiff ODEs
Bashir M. S. Khalaf, Abdulhabib A. A. Murshid
The main objective of this paper is to develop and construct numerical algorithms for solving stiff system of ordinary differential equations (ODEs) which are suitable for running on parallel...
DOI: 10.33899/csmj.2004.164113
On Upwind Galerkin Finite Element Method for Incompressible Flow of Contamination, from Nuclear Waste, in Porous Media
Ekhlass S. Al-Rawi, Abbas Y. Al-Bayati, Saad A. Manaa
Anon-linear parabolic system is derived to describe incompressible nuclear waste disposal contamination in porous media. Galerkin method is applied for the pressure equation. For the concentration,...
DOI: 10.33899/csmj.2004.164114
Improvement the Back-propagation Technique
Nidhal H. AL-Assady, Baydaa I. Khaleel, Shahbaa I. Khaleel
Error backpropagation neural network (EBP) used training algorithm for feedforward artificial neural networks (FFANNs). The main problem with the EBP algorithm that it is very slow and the converge...
DOI: 10.33899/csmj.2004.164115
A New Heuristic Procedure for Quadratic Assignment Problems
Najla Akram Al-Saati
In this work, a new heuristic procedure is developed for the solution of Quadratic assignment problems after illustrating various known procedures, and an attempt to increase the efficiency of...
DOI: 10.33899/csmj.2004.164116
On Expectation Correlate System and Chaotic Dynamics in Time-Series
Ali Makho Siker
This paper suggests a new system of time-series called Expectation Correlate System (ECS) that are good at detecting the behavior of dynamical systems (both deterministic and stochastic systems)...
DOI: 10.33899/csmj.2004.164117
Waves and Ripples in Liquid Films
Joseph G. Abdulahad, Abdulrahman M. Morshed
In this paper we present a mathematical model for two- dimensional incompressible flow in a symmetric thin liquid films with the viscosity forces, which can be very small, compared with surface...
OSFESOR Code – The Delay Differential Equation Tool “Improving Delay Differential Equations Solver”
Abbas Y. Al-Bayati, Riyadh S. Naoum, Ann J. Al-Sawoor
After having reviewed the RETARD code, which was originally written by Hairer & Wanner in 1995 with the aim of solving delay differential equations (DDEs), a new arithmetic called OSFESOR code...
DOI: 10.33899/csmj.2004.164119
Comparison of some Algorithms in Image Compression Application
Manar y. Ahmed
Today there are a number of algorithms developed in the framework of international committees that allow still image compression. In this paper, the area of Vector Quantization (VQ) neural network...
DOI: 10.33899/csmj.2004.164121
