Volume 1, Issue 2, Autumn 2006, Page 1-153


A Study of the Active Using of the Solar Energy by Using a Porous Media of Kirkuk city

Saad.M. Al-Mashat; Ahmed.H. Ahmed; Omar.K. Ahmad

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 1-15
DOI: 10.32894/kujss.2006.44050

In this study, a solar collector that uses porous media has been designed and constructed as an absorbing and storing heat surface. The solar collector is inclined of ( ) with the horizon. Heat has been absorbed from the collector by forced convection of air. A theoretical and experimental study was made for testing the performance of the collector in continuous operating of an air blower( from a.m to p.m) The highest instantaneous efficiency of the collector was about ( ), while the highest different between air input temperature and air output temperature from solar collector was about( ).

Using of Statistical Discriminate Methods for the Diagnosis of Some Heart Diseases

a Abdul-Kareem; Anwaar Dhia

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 16-28
DOI: 10.32894/kujss.2006.44073

The research use discriminate analysis which considered one of the important statistical methods in the classification of single variable or more for the populations under study depending on specific variable taking in consideration some types of advance discriminate functions in this field and apply them on two types of heart diseases for the build of probability model to distinguish two differences between them depending on signs, symptoms and some factors that may lead to cause the disease. This type of analysis show that the logistic model is superior to other models in this research regarding the ratio of wrong classification in comparison with the other models

The fastest algorithm for analyzing robust principal components with application on variables affecting the increase of aluminum level in blood Abstract

Khlod Y.Khmo and Dhafer H.Rashid

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 29-47
DOI: 10.32894/kujss.2006.44074

One of the common techniques in analyzing multivariate data is analyzing of the principal components. This transforms large number of related variables into lesser number of no related components (PCA).
In case of existence of outliers, which can be detected in several ways, then the dependence of variance and ordinary covariance matrices, also correlation matrix, would lead to misleading results in analyzing the principal components.
The aim of this research is to introduce a new and fast algorithm in analyzing the robust principal components; when data contain outliers, while conventional methods fall in detecting outliers in data; then the results are misleading. The method is implemented to show its real effectiveness on variables affecting the increase of aluminum level in blood.

Genetic Variability And Heterosis On Ginning Outturn And Fiber Characteristics In Cotton

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 48-62
DOI: 10.32894/kujss.2006.44076

Each of cotton varieties Halab90, SP8886, Verkana2, Stonvill 474 and Nazley87 (as males) were crossed to three other varieties (as females), respectively: (Cocker310, Deer22, Cocker5114), (Lachata, Dunn1047, Acala SJ2), (Halab33, Montana, Rekka5), (IK347, IK259, Mersoomy1), (Mersoomy4, Deltapine50 and Delatapine5409) using nested mating design. Parents and 15 hybrids among them were planted using randomized complete block design with three replications to study heterosis, general combining ability and estimate phenotypic variance components and some genetic parameters for traits: ginning outturn, lint index, fineness, 50% & 2.5% span length, fiber length uniformity, fiber strength and elongation. The results indicated than mean square of genotypes highly significant for ginning outturn, lint index and elongation, and mean square of males and female/male significant for the most traits. The varieties Cocker310, Cocker5114, Acala SJ2 and Montana seemed to have significant desirable general combining ability for larger number of traits. The cross (Halab90 x Cocker310) gave significant hybrid vigor for larger number of traits. Additive genetic variance values more than dominance one for: fiber fineness, 50% & 2.5% span length and elongation, and the reverse for the remainder traits, and the average degree of dominance exceeded one for all traits indicated the presence of over dominance except 50% 7 2.5% span length. The broad sense heritability low for fiber fineness and 2.5% span length, high for ginning outturn, lint index and elongation, and moderate for other traits, while narrow sense heritability low for ginning outturn, lint index and fineness, and moderate for other traits. The expected genetic advance was shown low for all traits (Ranged from 0.329% for lint index to 5.963% for fiber elongation).

The indications of surgical management of asymptomatic unilateral unilocular ovarian cysts in non-menopausal women

Email N. Azzo

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 1-9
DOI: 10.32894/kujss.2006.44146

This study is a prospective study we follow - up (284) patients with a symptomatic unilateral , unilocular , ovarian cyst sized (3-8 ) cm in diameterc in non menopausal women . The results were spoutaneous regression after observation of two menstrual cycles , in (64.4) % of cases , with or ithout the use of oral contraceptives . The percentage of regression varied in versely with the size of adnexal mass , the persisted ones were (35.6) % they removed surgically and all were found benign in nature , the surgery was Laprotomy in 67 % and Laproscopy in 33 % In conclusion there is no harm in observation for a period of two menstrual cycles of a symptomatic unilocular ovarian cyst with a nechoic pattern and no sign of malignancg in non – menopausal women as there is (64.4) % spontaneous regression without the need of surgery.

Genesis of Chromitite in Qalander Area, Northern Iraq

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 10-29
DOI: 10.32894/kujss.2006.44147

The study area is an isolated ultramafic complex composite of harzburgite-dunite-chromitite association in Qalander area, abut 10 km east of Mergesur, Erbil City, northern Iraq. The chromite-bearing rocks are located within lower part of Walash Volcanic Series of Paleocene-Eocene age. They form concordant, podiform bodies with cataclastic and pull-apart texture that occur in two localities (A and B). Electron microprobe and X-ray diffraction analysis indicate that the studied chromites are of alpine-type, Cr-rich in location A and Al-rich in locality B. The disseminated chromites in harzburgite have Cr# of 0.35-0.87 ; and 0.42-0.56 in localities A&B respectively and Cr# rang between 0.38-0.48 in the dunite associates of localities B. The disseminated chromites of both localities are richer in Fe and TiO2 than the associated massive chromite. Olivine and pyroxene are primary inclusions in chromitite, while serpentine, chlorite and calcite represent the secondary inclusions as alteration products of the primary inclusions. The distinctive Cr# displayed by chromitite of two localities (A&B) are attributed to harzburgite from two different tectonic setting. Chromitites, however are formed by wall rock-melt interaction involving refractory harzburgite from different tectonic environment leading to two chemically distinct Cr-rich chromite domains. High Cr# of chromite of locality A, suggest supra-subduction zone environment, indicates genetic linkage with some bonitite, or high-Mg arc tholeiities which are available in supra-subduction zone; lower Cr# in location B suggest mid-oceanic ridge setting.

Bicyclina ( FORAM ), a new peneroplid genus from

Qahtan A. Mohammed

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 30-39
DOI: 10.32894/kujss.2006.44193

A new genus of larger foraminifera, Bicyclina (type: Cycledomia iranica) n. gen., from the Mishrif limestone ( Late Cenomanian )in Rifaiy area of southern Iraq is described and figured .This new form belongs to the family Peneroplidae.The difference with other genera showing comparable structures and the stratigraphic position are described.

Is surface membrane acid phosphatase an essential requirement for the survival of Leishmania in macrophages ?

Husain F. Hassan

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 40-49
DOI: 10.32894/kujss.2006.44198

The occurrence of acid phosphatase activity amongst the leishmanias has been investigated with the aim of determining whether the enzymes are adaptations for survival and growth in insect or mammals. The results of the study suggest that there are no marked differences between the acid phosphatase activity of L.major mid log and stationary phase promastigotes. The activities of both, however, differed considerably from those of L.tropica and L.donovani . In contrast to L.tropica and L.donovani, is the apparent lack of surface acid phosphatase on L.major, and so it is suggested that the surface enzyme is not essential for survival of all leishmanias in macrophage.

Determination of Selenium and Vitamin E in Women Breast Milk of Lacting, Commercial and soil by Atomic Absorption Spectrometry and HPLC Respectively Breast Milk of Lacting, Commercial and soil by Atomic Absorption Spectrometry and HPLC Respectively

Kameran Sh.Hussein

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 50-61
DOI: 10.32894/kujss.2006.44202

The present work is an attempt to study the level of selenium in (63) samples of human breast milk which were collected in Tikrit region. The concentrations ranged (27.4 - 22.8 mg/L), while the concentration in (143) samples of commercially available infant formula sold in Iraq the concentration was ranged (33.6-22.2 mg/L). From (124) samples animal milk the concentration ranged (22.0- 12.0 mg/L). Selenium content of the samples was determined by atomic absorption – hydride generation. The mean concentration of selenium in the topsoil and subsoil was (0.17, 0.21 mg/kg) , which determined by Graphite Flameless Atomic Absorption spectroscopy. Selenium is an integral part of the enzyme glutathione peroxidase, a long with vitamin E –Se acts as a part of anti-oxidant defense system of cell protecting lipids in cell membranes from the destructive effects of H2O2 and super oxide generated by excess oxygen. in the same mothers, was detected by HPLC, And the level of this vitamin was ranged between (0.82-1.13 µg/dL).

A comparative study for the Determination of aspartame in pharmaceutical preparations by Kinetic Spectrophotometric and Reverse Phase-High Performance Liquid Chromatography methods.

Kameran .S.Hussein and Mostafa .R. Aeyd; Abdul Majeed K.Ahmad

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 62-77
DOI: 10.32894/kujss.2006.44209

This investigation involves development of a new kinetic spectrophotometric and a reverse phase-high performance liquid chromatography (RP-HPLC) methods for the determination of aspartame AS in pharmaceutical preparations. Spectrophotometric method was based on the oxidation of the drug AS with alkaline potassium permanganate. The reaction is followed spectrometrically by measuring the rate change of the absorbance of AS at 600nm. A fixed-time (at 48 min) method is adopted for determining the drug concentration. A linear calibration graph was in the range of 1-7μg.ml-1, with a correlation coefficient of 0.9998, detection limit of 0.101μg.ml-1, molar absorption coefficient is 5.2×104 L/mol.cm, Sandels sensitivity (S) 0.0056 μg/cm2 and relative standard deviation RSD% of 1.40%. In HPLC method, the drug was analyzed using RP-HPLC method with a Zorbax ODS-C18 (15cm×4.6mm i.d); analytical column (5μm partical size) and Isocratic elution with a mobile phase containing 15% acetonitrile in 0.02M sodium acetate buffer (pH 5.4), at a flow rate of 1ml.min-1, 20 μl sample loop, and the UV detector was set at λmax 220nm, Calibration graph was in the range of 10-70 μg.ml-1 with a correlation coefficient of 0.9991, detection limit of 1.09μg.ml-1 and a relative standard deviation of 0.91%.The two methods were applied successfully to determine the content of AS in pharmaceutical preparations with a recovery of 98.8-99.3%.

A direct Approximation Method to solve OCP Using Laguerre Functions

Omar M. Al-Faour and Suha N. Al-Rawi; Abdul Samee A. Al-Janabee

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 78-95
DOI: 10.32894/kujss.2006.44212

This paper presents an approximate method to solve unconstrained optimal control problem (OCP).This method is classified as a direct method in which an OCP is converted into a mathematical programming problem.The proposed direct method is employed by using the state parameterization technique with the aid of Laguerre polynomials and Laguerre functions to approximate the system state variables. To facilitate the computations within this method, new properties their proofs of Laguerre polynomials and Laguerre functions are given with proof.Furthermore, we will derive the condition under which the proposed method with Laguerre functions converges to the solution of the OCP equation. We will also show that for N (the number of basis functions) sufficiently large, the approximate states stabilize the system.The proposed method has been applied on several numerical examples and we find that it gives better or comparable results compared with some other methods.

New CG-Algorithms for the nonquadratic model

Abbas Y. Al-Bayati; Sudaba A. Mohamed; Basim A. Hassan

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 96-107
DOI: 10.32894/kujss.2006.44236

In this paper we have investigate a new class of conjugate gradient algorithms for unconstrained non- linear optimization which employ inexact line searches and designed for general use. Some theoretical results are investigated which ensure the local convergence of the new proposed algorithms and they compared numerically with the standard HS-CG algorithm(Hestenes & Stiefel ,1952) using a number of test functions for the dimensions between 2 to 400 with some promising numerical results .

On The Solution of Certain Fractional Integral Equations

Suha N. Al-Rawi

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 125-136
DOI: 10.32894/kujss.2006.44248

In this paper we introduce the linear operator of fractional integral equation of the second kind (FIESK) in the framework of the Riemann-Liouville fractional calculus. Some results concerning the existence and uniqueness have been also obtained. Particular attention is devoted to the technique of Laplace transform for treating FIESK. By applying this technique we shall derive the analytical solutions of the most linear FIESK.Other main objective concern here is to give an approximate scheme using collocation method to solve FIESK. Two fundamental questions concerning this method: its stability and convergence are discussed. We show that the analytical stability bounds are in excellent agreement with numerical tests. Comparison between exact solutions and approximate predictions is made.

The Dynamics of Thin Liquid Film

Kirkuk University Journal-Scientific Studies, 2006, Volume 1, Issue 2, Pages 137-153
DOI: 10.32894/kujss.2006.44252

The dynamics of the thin layer which flows steadily between two vertical guide wires was investigated but with zero shear stress at their bounding surfaces where the gravity has no significant effect on the liquid film. We apply the Navier-Stokes equations in two dimensional steady flows for incompressible fluid to a falling liquid curtain and we present the derivation of the differential equation that governs such flow and we obtain a solution for these equations which is valid for this liquid curtain , where we restrict our works to the case where the domain under consideration is long and thin, the solution of the governing equation is obtained by analytical method, and in this case there is a critical solution for large when the parameter is equal to zero, where and which is identical to the case when the normalized pressure is equal to zero. Generally, we solve the equation when is not equal to zero, and the thickness of the film increases as increases where .