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PhD theses : Science: Recent submissions
Now showing items 161-180 of 647
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(Sudan University of Science and Technology, 2019-09-06)This study was carried out to investigate the flavonoids three key species in Sudanese traditional medicine: Wetheria indica , Cistanch phelypea and Fagonia critica. Three flavonoids ,one flavonoid from each plant, have ...
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(Sudan University of Science and Technology, 2020-01-06)The problem of the time dependent boundary layer is important for its applications in several areas, and many methods have been used to solve it. The objective of this research is to apply the (G\G) -expansion method ...
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(Sudan University of Science and Technology, 2019-12-12)The study dealt with the problem of determining an appropriate survival model for breast cancer patients data based on the distribution of survival time, where breast cancer is one of the most common causes of ...
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(Sudan University of Science and Technology, 2019-11-06)This work dealt with the Synthesis, Characterization, Biological Activity of Some Schiff Base Ligands (Derived from Dimedone) and Some of their Metal Complexes. The Schiff base ligands synthesized were (3,3- dimethyl-5(p ...
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(Sudan University of Science and Technology, 2019-11-05)The aim of this study is to investigate the effect of zinc oxide and copper oxide concentration on polymer solar cell performance. A layer of polymer with concentration of 0.2 ml gram/ml was deposited on the ITO glass. ...
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(Sudan University of Science and Technology, 2019-12-10)The aim of this research is to discuss and study symmetries of Lagrangian and Hamiltonian systems using Lie algebra of the symmetry Lie groups. In particular conservation laws for invariant variational based on Noether ...
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(Sudan University of Science and Technology, 2019-06-22)The oil from Cymbopogon citratus was subjected to GC-MS analysis. Thirty four components have been detected. Major components were : citral (44.20 %) ,2,6-octadienal, 3,7-dimethyl- β- citral (27.41%), caryophyllene oxide ...
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(Sudan University of Science and Technology, 2019-12-10)In this study, six Sudanese plant species(Eucalyptus camaldulensis, Kegalia Africana, Beta vulgaris, Tephrosia apollina, Dichrostachys cinera and Annona squamosa) have been investigated. These plant species are of medicinal ...
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(Sudan University of Science and Technology, 2019-07-10)The description of the spectra tiling properties and Gabor orthonormal bases generated by the unit cubes and of the exponential for the 𝑛-cube are characterized. In addition the uniformity of non-uniform Gabor bases, ...
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(Sudan University of Science and Technology, 2019-08-10)This research project deals with a new two methods called Fractional Double Laplace Decomposition Method and Fractional Natural Decomposition Method. The first method was developed by combining the fractional double ...
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(Sudan University of Science and Technology, 2019-09-10)In this study, scalp hair samples were collected from workers working in workshops and perfume factories in Omdurman area where there is an expectation of exposure to environmental pollution. The hairs content determination ...
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(Sudan University of Science and Technology, 2019-11-10)This research pertains to study the sensitivity of Poly Vinyl Alcohol Films Doped with Silver Nitrate to Low X-ray Doses and their uses as chemical Radiation Dosimeter, Studied on irradiated polymers show many advantages ...
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(Sudan University of Science and Technology, 2019-08-10)Using generalized special relativistic energy –momentum relation a useful linear equation was obtained .the coefficients and matrixes resembles that of Dirac relativistic quantum equation .Anew quantum linear relativistic ...
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(Sudan University of Science and Technology, 2019-10-20)The aim of this study is to determine the concentration of Ca,Fe, Cu, Zn, Pb, Br and Sr in scalp hair of Sudanese exploration (gold) workers in Al-Ubaidiyya town and healthy volunteers from Khartoum, using x-ray fluorescence ...
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(Sudan University of Science and Technology, 2019-07-10)This study was designed to investigate the major flavonoids of four multipurpose medicinal plants (Acacia nilotica subsp. Adstrings seeds, Smilax regelii root , Acacia seiberiana stem, and Acacia tortilis leave). The ...
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(Sudan University of Science and Technology, 2019-07-10)In this study three potential medicinal plants (Acacia nilotica subsp. nilotica , Acacia polyacantha and Leptadenia pyrotechnica) have been investigated. Four flavonoids have been isolated and their partial structures ...
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(Sudan University of Science and Technology, 2019-07-10)The given improvement and critical with Sharp trace and fractional Hardy-Sobolev inequalities are studied. We also study affine and best constants Moser-Trudinger and higher order Sobolev inequalities on high dimensional ...
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(Sudan University of Science and Technology, 2019-08-10)This study was designed to investigate the major flavonoids of Lepidium sativum and Ammi visnaga . The flavonoids were extracted with ethanol and the crude extract was purified by thin layer chromatography where three pure ...
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(Sudan University of Science and Technology, 2019-07-10)This study was carried out to investigate the major flavonoids of Coriandrumsativum leaves, Bauhinia rufescens roots, stem bark of Albizzaamara and to assess the antimicrobial activity of the isolated flavonoids. The ...
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(جامعة السودان للعلوم والتكنولوجيا, 2019-08-10)هدفت الدراسة إلى تحدید أفضل الطرق المستخدمة في عملیة التقدیر والمقارنة بین طرق التقدیر وتحدید أسهلها وأدقها في عملیة التقدیر وتوضیح الأسالیب الإحصائیة المستخدمة في تقدیر القیم المفقودة، وذلك بالتطبیق على بیانات عن صادرات ...
Now showing items 161-180 of 647
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