College of Science: Recent submissions

Now showing items 1641-1660 of 1855

HIDDEN MARKOV MODELS TO ALIGNMENT AND GENE FINDING PROBLEMS

Ibrahim, Mustafa Mohammed Mohammed (Sudan University of Science and Technology, 2009-11-01)

The development of computers and the theory of doubly stochastic processes, have led to a wide variety of applications of the hidden Markov models (HMMs). Due to computational efficiency, discrete HMMs are often favorable. ...
Littlewood- Paley operators Applied to the Dunkl operator on the Real line.

Gdal, Jwahir Hussien (Sudan University of Science and Technology, 2009-10-01)

We show a -Theorem for non-doubling measures and for the Cauchy integral. We study the elementary theorem of Paley- Wiener for the Dunkl transforms and the characterization of Besov spaces for the Dunkl operator on the ...
Scattering of Charged Particles by Infinite Charged Wire

Albokhary, GalalAldeen I.I. (Sudan University of Science and Technology, 2009-09-01)

In this research we will investigate the scattering process occurred by charged particles from an infinite charged wire by means of simulation. The expressions for the scattering potential as a function of normal ...
Determination of Alcohol Contents in Non-alcoholic Beverages in Sudanese Market

Sherfi, Tahani Khidir M.Khair (Sudan University of Science and Technology, 2009-05-01)

Four samples of non-alcoholic beverages (Mossy,Beck,Bavaria and Amesterdam) were chosen from the market stores for the follow up of the chemical development of the ethyl alcohol during storage for ten, fifteen and twenty ...
Changes in Trace Element concentration, Viscosity and Electrical Conductivity of blood in Malaria infected patients

Yousif, Zeinab Khider Osman (Sudan University of Science and Technology, 2009-11-01)

This study was conducted in Khartoum State teaching hospitals during the period of January 2005 to October 2009 to detect the physical changes by malaria parasites in human blood by determining blood viscosity, haematocrit, ...
SYNTHESIS OF SOME 1,3-DISUBSTITUTED-2,3-DIHYDRO-1H-NAPHTH[1,2-e][1,3]OXAZINE AND BETTI BASES

ELRAYAH, SALMA MSAAD ELSIDDIG (Sudan University of Science and Technology, 2009-06-01)

The first part of a the thesis consists of theory and literature survey of Naphthoxazine and Betti bases. Naphthoxazine derivatives can be used as intermediates in the synthesis of N-substituted aminoalcohols or in ...
Measurement of Temperature Using Line-width Broadening

Daleel, Hassan Mansour Ahmed (Sudan University of Science and Technology, 2009-04-01)

This work is devoted to see whether waves can be utilized to measure the temperature. The theoretical relations shows the possibility of performing this task by utilizing Zeeman effect to force material the to ...
Characterization and Thermodynamic Studies of Acacia Nilotica Gum of Sudanese Origin

Abd Elhadi, Amira Osman (Sudan University of Science and Technology, 2009-01-01)

A number of physicochemical properties (moisture, ash, pH, nitrogen and protein content, specific rotation, intrinsic viscosity) and total sugars content were used to characterize Acacia nilotica gum of Sudanese origin. ...
Tracial Approximations and Graph algebras on -algebra with contractive projective on Banach algebra

Mohammed, Fatima Ibrahim (Sudan University of Science and Technology, 2009-02-01)

We study the tracially approximation of a class of -algebra. A classification is given of certain separable unclear -algebras not necessarily of real rank zero, namely, the class of separable simple -algebras which are ...
Compact Quantum Systems and Norm Expansion with Observability of Conservative Systems

Taha, Nidal Elhaj Hassan (Sudan University of Science and Technology, 2009-02-01)

The theory of multiplicity, mps was developed. A complete classification of right Coideal - algebras with a given parameter are obtained but the classification results for positive and negative cases of this parameter are ...
Dependence of Absorbitivity of Rectangular Microwave Waveguide on its Dimension

WIDAA, EINAS MOHAMMED AHMED (Sudan University of Science and Technology, 2009-02-01)

One of the most prominent problems facing Scientists in designing solar cells nowadays is to design highly efficient solar cells by increasing its light absorbitivity. This needs a design of highly efficient solar cells ...
Electrons Velocity Distribution for Plasma Debye Sphere in Tokomak

Ngeeb, Elnapega Mohamed (Sudan University of Science and Technology, 2009-03-01)

In this thesis the distribution of electrons velocity in the plasma Debye sphere within the Tokamak was calculated. It was found that, the behavior of electrons follow the Maxwell distribution in Gaussian shape. After ...
Characterization and Functionality of Sphay Dried Gum Arabic : Acomparatue Study

Basher, Eatidal Farrah (Sudan University of Science and Technology, 2009-01-01)

Two processed A.seyal and A.senegal samples of gum arabic have been studies in order to establish the physico chemical properties and functionality of processed gum samples in comparison with unprocessed gum arabic. ...
Compactness of Solution of - Neumann Operator in Weighted L2 – Spaces

Ali, Fatahia Ahmed Mohammed (Sudan University of Science and Technology, 2009-06-01)

We consider the space of square integrable functions with respect to a measure on a rotation invariant open set. We give necessary and sufficient conditions, in terms of the moments of the measure, for the con canonical ...
Fabrication of (ZnO, MnO2) Disks to Filtrate and Attenuate some Wavelengths in the Near Infra Red (NIR) and Visible Regions

NOUR, EIMAN SATTI OSMAN MOHAMED (Sudan University of Science and Technology, 2009-02-01)

In this work, the main objective was to design and fabricate different disks to act as optical filters and attenuators for 6avelengths in the Visible (VIS) and Infrared Regions (IR) of the electromagnetic spectrum. Zinc ...
Bitriangular Operators of Jordan form and Inverse Spectral Theory for Symmetric Operators on Joint Invariant Subspaces

Abedrahaman, Bashir Eissa Mohammed (Sudan University of Science and Technology, 2009-07-01)

We show the sum rules and their applications of special form for Jacobi matrices, and the spectral properties of self-adjoint extensions of Weyl functions are considered. The representation and Jordan form of biquasitriangular ...
Applications on powers and singular operators and estimates for oscillatory integral operators

Mohamed, Ahmed Himadan Ahmed (Sudan University of Science and Technology, 2009-09-01)

We give remarks on the construction of linear evolution equations. Logarithms and some examples of unbounded imaginary powers of operators are considered, and we determined the best constants in Young's inequality ...
Study of Gravity Waves Concemed With Energy Potentials Line Soures and Interation With Inertial current

Mohammed, Ebtihal Ahmed Talha (Sudan University of Science and Technology, 2009-03-01)

We present a mainly theoretical study of high-Reynolds-number planar gravity currents in a uniformly flowing deep ambient. The gravity currents are generated by a constant line source of fluid, and may also be supplied ...
Modeling Design for a secure Antenna for Public Health

Abd Ellateef, Abd Ellateef Abbass (Sudan University of Science and Technology, 2009-04-01)

The wide spread of base stations and mobile phones always accompanied by the issue of the health implications for human.In some previous studies it was shown that radiation emitted from base stations and mobile phones ...
Infrared Thermographic Testing of some Defects in High Tension Electrical Transformers at Mahmood Shareef Station

Ahmed, Asim Abdallah Mohammed (Sudan University of Science and Technology, 2009-04-01)

The aim of this study is to detect some defects of high tension electrical transformers. In this testing infrared cameras were used (thermaCam Sc300) with high sensitivity (0.95) to measure small temperature differences. This ...

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