ORIGINAL_ARTICLE
Linear Stability of Thin Liquid Films flows down on an Inclined Plane using Integral Approximation
In this paper, the stability and dynamics of a thin liquid films flowing down on an inclined plane are investigated by using integral approximation. The strong non-linear evolution equations are derived by the integral approximation with a specified velocity profile. The evolution equations are used to study the linear stability for liquid films. As a result, output of this research, we showed that the effect of inclination of films is an unstable factor.
https://csmj.mosuljournals.com/article_163747_7e28711124e3da40d0859bdb9cae95cc.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
13
24
10.33899/csmj.2014.163747
stability
Non-linear equations
Integral approximation
Hajar
Ismael
hajar.math@yahoo.com
true
1
Faculty of Science, University of Zakho
Zakho – Kurdistan-Region, Iraq
Faculty of Science, University of Zakho
Zakho – Kurdistan-Region, Iraq
Faculty of Science, University of Zakho
Zakho – Kurdistan-Region, Iraq
AUTHOR
ORIGINAL_ARTICLE
New Scaled Proposed formulas For Conjugate Gradient Methods in Unconstrained Optimization
In this paper, three efficient Scaled Nonlinear Conjugate Gradient (CG) methods for solving unconstrained optimization problems are proposed. These algorithms are implemented with inexact line searches (ILS). Powell restarting criterion is applied to all these algorithms and gives dramatic saving in the computational efficiency. The global convergence results of these algorithms are established under the Strong Wolfe line search condition. Numerical results show that our proposed CG-algorithms are efficient and stationary by comparing with standard Fletcher-Reeves (FR); Polak-Ribiere (PR) CG-algorithms, using 35-nonlinear test functions.
https://csmj.mosuljournals.com/article_163748_bf27dd86e3a9a419505f4127bb14b11c.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
25
46
10.33899/csmj.2014.163748
Scaled Proposed formulas
Conjugate Gradient
unconstrained optimization
Abbas
Al-Bayati
profabbasalbayati@yahoo.com
true
1
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
AUTHOR
Marwan
Jameel
true
2
University of Mosul/Iraq
University of Mosul/Iraq
University of Mosul/Iraq
AUTHOR
ORIGINAL_ARTICLE
A Comparative Study of Wavelets Methods for Solving Non-Linear Two-Dimensional Boussinesq System of Type BBM-BBM
In this paper, numerical techniques based on the wavelets methods are proposed for the numerical solution of non-linear two-dimensional BBM-BBM system and we compared between them. Two methods used in numerical solutions, are the Haar wavelets and Legendre wavelets methods.In addition, we derived formulas of integrals for Legendre wavelets analytically. Its efficiency is tested by solving an example for which the exact solution is known. The accuracy of the numerical solutions is quite high even if the number of calculation points is small, by increasing the number of collocation points, the error of the solution rapidly decreases. We have found that the Legendre wavelets method is better and closer to the exact solution than the Haar wavelets method.
https://csmj.mosuljournals.com/article_163749_37ae2cddab2e1bca1f4c7ac96ac58801.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
47
63
10.33899/csmj.2014.163749
Boussinesq systems
BBM-BBM system
Haar wavelets
Legendre wavelets
Ekhlass
Al-Rawi
drekhlass-alrawi@uomosul.edu.iq
true
1
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
AUTHOR
Ahmed
Qasim
ahmednumerical@yahoo.com
true
2
College of Computer Sciences and Mathematics
University of Mosul
Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul
Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul
Mosul, Iraq
AUTHOR
ORIGINAL_ARTICLE
Using Artificial Intelligence Techniques for Image Compression
Image compression helps in storing the transmitted data in proficient way by decreasing its redundancy. This technique helps in transferring more digital or multimedia data over internet as it increases the storage space. This research presents some methods to compress digital images using Artificial Intelligence Techniques(AITs) that include from fuzzy logic, swarm intelligent technique, and artificial neural networks. Traditional clustering algorithm k-means and AITs were used, such as Gath-Geva fuzzy clustering algorithm, and Particle Swarm Optimization Technique(PSO), and combined Gath-Geva with backpropagation neural network to produce a new method which is called Fuzzy BackPropagation Network (FBPN) algorithm, by applying these methods on gray level and color images and then applying compression algorithm RLE on it to obtain compressed image. Image quality measures have done by Peak Signal to Noise Ratio(PSNR), Mean Square Error(MSE), and Bitperpixel(bpp), compression ratio (CR) have been computed. Finally, a comparison between results after applying these algorithms on the images data set was obtained.
https://csmj.mosuljournals.com/article_163750_a63f9c568052a2d57ccc2bda934a84c8.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
65
81
10.33899/csmj.2014.163750
K-means algorithm, Gath-Geva (GG) fuzzy clustering algorithm
Particle Swarm Optimization Technique(PSO)
Fuzzy Backpropagation Neural Network (FBPNN)
Baydaa
Khaleel
baydaa_ibraheem@yahoo.com
true
1
College of Computer Sciences and Mathematics
University of Mosul
College of Computer Sciences and Mathematics
University of Mosul
College of Computer Sciences and Mathematics
University of Mosul
AUTHOR
ORIGINAL_ARTICLE
On П – Pure Ideals
As a generalization of right pure ideals, we introduce the notion of right П – pure ideals. A right ideal I of R is said to be П – pure, if for every a Î I there exists b Î I and a positive integer n such that an ≠ 0 and an b = an. In this paper, we give some characterizations and properties of П – pure ideals and it is proved that:
If every principal right ideal of a ring R is П – pure then,
a).L (an) = L (an+1) for every a Î R and for some positive integer n .
b). R is directly finite ring.
c). R is strongly П – regular ring.
https://csmj.mosuljournals.com/article_163751_d6d1b144928ba973a7890f7a50df566a.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
83
86
10.33899/csmj.2014.163751
Pure
strongly regular
П – ring
Shaimaa
Ahmad
shaima.hatem1977@gmail.com
true
1
Mathematics Department
College of Computer Science and Mathematics
University of Mosul, Mosul, Iraq
Mathematics Department
College of Computer Science and Mathematics
University of Mosul, Mosul, Iraq
Mathematics Department
College of Computer Science and Mathematics
University of Mosul, Mosul, Iraq
AUTHOR
ORIGINAL_ARTICLE
Construction of Complete (k,n)-arcs from Conics in PG(2,13)
This research contains the construction of complete (k,n)-arcs using geometric method and putting a condition that each constructed arc must begin with reference unit four points ,then constructing all conics that each one contains the fundamental four points ,and then make union operation between each two conics and compute all the points need to be deleted (or added) to get complete (k,n)-arcs each time for . This research is a construction procedure not a classification method .
https://csmj.mosuljournals.com/article_163752_7ddbedcc08c42e754b2e94874ec05040.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
87
102
10.33899/csmj.2014.163752
Complete arc
(k
n)-arc
conic
PG(2
13)
Shua’a
Aziz
shuaamaziz@gmail.com
true
1
Department of Mathematics,
College of Computer and Mathematics Science
University of Mosul, Iraq
Department of Mathematics,
College of Computer and Mathematics Science
University of Mosul, Iraq
Department of Mathematics,
College of Computer and Mathematics Science
University of Mosul, Iraq
AUTHOR
ORIGINAL_ARTICLE
About Fuzzy Differential Equations
This paper deals with the fuzzy initial value problem and how to solve a linear fuzzy differential equation of first order when the initial condition is a triangle fuzzy number. This problem is then developed to the case when the initial condition is a trapezoidal fuzzy number. The paper includes also the issue of the representation of a system of linear fuzzy differential equations, a more general system of linear fuzzy differential equations is then proposed and the solution of this system is also given. An illustrative examples are given in order to consolidate the raised ideals.
https://csmj.mosuljournals.com/article_163753_35e43410bb11d24fbb53315868403a96.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
13
25
10.33899/csmj.2014.163753
fuzzy
differential equations
Basil
Thanoon
true
1
College of Comp. Sc. and Math.
University of Mosul
College of Comp. Sc. and Math.
University of Mosul
College of Comp. Sc. and Math.
University of Mosul
AUTHOR
Asmaa
Al-Katib
true
2
College of Basic Education
University of Mosu
College of Basic Education
University of Mosu
College of Basic Education
University of Mosu
AUTHOR
ORIGINAL_ARTICLE
Use Cutting Enzymes to Encode the Secret Message
Researchers begin to explore new methods to manage the huge amount of data shared over the Internet, in order to use them more efficiently and safely, One of the ways that is raised nowadays is Steganography, The art of information hiding within electronic media. Steganography ways vary in their approaches for hiding information.
During this research designed algorithm that using restriction enzymes to cutting sequence of DNA, the fragments resulted was used to building symbols table (character , number , special character,…),by using symbols table the plain message (text ,sound ,image ,video) coding to DNA and sent it to recipient, the recipient build symbols table same way in the sender site and use function to known restriction enzymes, using restriction enzymes to cutting secret sequence DNA , by using the fragments of DNA and symbols table can retrieve the plain message (text ,sound ,image ,video).
https://csmj.mosuljournals.com/article_163754_7f996d22f3d0ce52faba58512c8079d9.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
27
36
10.33899/csmj.2014.163754
Algorithms
Enzymes
DNA
Saadoun
A.
true
1
College of Science
University of Al Mosul
College of Science
University of Al Mosul
College of Science
University of Al Mosul
AUTHOR
ORIGINAL_ARTICLE
Detection of desert percentage in Al-Hatra Region based on image contents
In this paper we benefiting from Satellite imaging to retrieve information by using its contents, which is the pixels value of the image and by using the information of groups of pixels like texture, color gradation etc….then analyzing these information to extract spatial and temporal information of this images. Content Based Information Retrieval (CBIR) technique was used to retrieve image contents depending on visual objects of it. Support Vector Machine (SVM) technique was put into use by depending on more than one function like polynomial and RBF, then applying every one of them alone with the training image with different blocks size, then using block size and function that give best result from the training phase to be applied on the test images.
The Satellite imaging was classified into two areas; desert and none desert in order to find the desert percentage of each image and comparing increasing of the desert percentages in Al-Hatra Region as a typical desertification area in nenavah governorate on different temporal periods. The language used in building the system is Matlab R2011a.
https://csmj.mosuljournals.com/article_163755_11f6fcf88842f00356959f8ad195d20b.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
37
51
10.33899/csmj.2014.163755
Content based information retrieval
SVM
Saja
Mallaaloo
sata8071@gmail.com
true
1
College of Computer Science and Mathematics
Mosul University
College of Computer Science and Mathematics
Mosul University
College of Computer Science and Mathematics
Mosul University
AUTHOR
Ghaydaa
Al-Talib
ghaydabdulaziz@uomosul.edu.iq
true
2
College of Computer Sciences and mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and mathematics
University of Mosul, Mosul, Iraq
AUTHOR
ORIGINAL_ARTICLE
Software Effort Estimation Using Multi Expression Programming
The process of finding a function that can estimate the effort of software systems is considered to be the most important and most complex process facing systems developers in the field of software engineering. The accuracy of estimating software effort forms an essential part of the software development phases. A lot of experts applied different ways to find solutions to this issue, such as the COCOMO and other methods. Recently, many questions have been put forward about the possibility of using Artificial Intelligence to solve such problems, different scientists made several studies about the use of techniques such as Genetic Algorithms and Artificial Neural Networks to solve estimation problems. This work utilizes one of the Linear Genetic Programming methods (Multi Expression programming) which apply the principle of competition between equations encrypted within the chromosomes to find the best formula for resolving the issue of software effort estimation. As for to the test data, benchmark known datasets are employed taken from previous projects, the results are evaluated by comparing them with the results of Genetic Programming (GP) using different fitness functions. The gained results indicate the surpassing of the employed method in finding more efficient functions for estimating about 7 datasets each consisting of many projects.
https://csmj.mosuljournals.com/article_163756_2d593a444328ad02601f0d083038e400.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
53
71
10.33899/csmj.2014.163756
Effort Estimation
Multi Expression Programming
Genetic Programming
Najla
Al-Saati
dr.najla_alsaati@uomosul.edu.iq
true
1
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
College of Computer Sciences and Mathematics
University of Mosul, Mosul, Iraq
AUTHOR
Taghreed
Alreffaee
taghreed_reyad@uomosul.edu.iq
true
2
College of Computers Sciences and Mathematics / University of Mosul
College of Computers Sciences and Mathematics / University of Mosul
College of Computers Sciences and Mathematics / University of Mosul
AUTHOR
ORIGINAL_ARTICLE
Automatic Documentation of Java Programs
Documentation process plays a great role in software systems development and maintenance, and regarded as an important feature for all software projects and programs in general. In the past, documents had been generated manually by documents writers, but these documents were very weak and had many errors, Therefore, automated documentation had been invented due to its good features that is complete, precise, and cheap compared with manual ways.
The work concerns with constructing an automated tool ADT(Auto Documentation Tool) used for documenting source code for programs written in java programming languages in legacy systems particularly and for programs in general which does not have any documentation at all or it were documented poorly in order to make them, and producing as a result of the document process either the class diagrams using UML (Unified Modeling Language( or producing easy understandable textual output using XML (Extensible Markup Language).
https://csmj.mosuljournals.com/article_163757_62d3e1df8b403539491a32be15fc8de9.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
73
87
10.33899/csmj.2014.163757
Automatic Documentation
UML
XML
Dujan
Taha
dujan_taha@uomosul.edu.iq
true
1
College of Computer Sciences and Mathematics
University of Mosul
College of Computer Sciences and Mathematics
University of Mosul
College of Computer Sciences and Mathematics
University of Mosul
AUTHOR
Asmaa
Thanoon
true
2
College of Computer Sciences and Mathematics
University of Mosul
College of Computer Sciences and Mathematics
University of Mosul
College of Computer Sciences and Mathematics
University of Mosul
AUTHOR
ORIGINAL_ARTICLE
Stability Analysis of a fluid in Horizontal and Inclined Channels
This paper is devoted to analysis the stability of horizontal and inclination in a glazing cavities of equations that we expose to disturbance. This analysis is done by finding the eigenvalues of the system which enable us to investigate the grow of disturbance after setting glazing cavities equations in linearization form. We obtain from our results that the equations are stable when the real part of wave velocity is negative , and unstable when it is positive .
https://csmj.mosuljournals.com/article_163758_4416949e6f305ce0badec6b3d8a1cb44.pdf
2014-12-01T11:23:20
2020-06-01T11:23:20
89
97
10.33899/csmj.2014.163758
stability
Reynold Number
Wave Number
Rayleigh Number
Alaa
Ahmed Hammodat
true
1
College of Education
University of Mosul
College of Education
University of Mosul
College of Education
University of Mosul
AUTHOR
Taghred
Shuker
true
2
College of Education
University of Mosul
College of Education
University of Mosul
College of Education
University of Mosul
AUTHOR