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PhD theses : Science: Recent submissions
Now showing items 221-240 of 647
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(Sudan University of Science and Technology, 2019-03-10)This thesis provides solutions for nonlinear partial differential equations, obtained from Concrete Beams Design (CBD), by extracting three partial differential equations of the beam model. Including beam definition, types ...
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(Sudan University of Science and Technology, 2018-12-20)Multipole expansion was employed to obtain expansions for charge densities, electric field and magnetic field generated by ground state of Europium Eu3+, Gadolinium Gd3+, TerbiumTb3+, Dysprosium Dy3+, Holmium Ho3+, Erbium ...
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(Sudan University of Science and Technology, 2018-10-30)The aim of this work was to investigate the effect of addition of natural antioxidants , Sesame oil and dichloromethane ( DCM ) extract of ginger roots , at different concentrations (0,200 ,300 , 400 ,500 and 600 ppm ...
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(Sudan University of Science and Technology, 2019-04-10)Three brick clay samples were prepared by mixing the garirh earth from Jazeera state and kaolin from North state with different percentages for three samples. The refractory bricks components, were for sample-1 (75% garirh, ...
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(Sudan University of Science and Technology, 2018-12-10)In this study, vitamin C has been determined by iodine titration in which starch was used as indicator in which four solvents were used to extract vitamin C from fruits and leaves samples of Balanites aegyptiaca and Prosopis ...
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(Sudan University of Science and Technology, 2019-01-10)This study focused on the exploration of chromium metal and its use in the industriesthat are selected for its utmost importance. In this study, glowing X-ray techniques were used to determine the concentration of chromium ...
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(Sudan University of Science and Technology, 2018-01-10)Complex analysis and conformal mapping play a central role in mathematical sciences and theoretical physics. The traditional applications include differential equations, harmonic analysis, potential theory and fluid ...
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(Sudan University of Science and Technology, 2019-02-10)The soliton concept has been established in several areas of applied science, and many of dynamical systems. The aim of this work is to use the theory of soliton to describe some physical phenomena concerning radiation and ...
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دراسة مقارنة لطرق التقدير باستخدام حجم العينة , المتوسط و الانحراف المعياري للعينة العشوائية البسيطة (جامعة السودان للعلوم والتكنولوجيا, 2018-07-10)في هذه الدراسة تناولنا مقارنة بين طرق التقدير للعينات العشوائية و أثر حجم العينة والمتوسط والانحراف المعياري على صحتها, وخصينا موضوع الدراسة للعينة العشوائية البسيطة ,حيث وضحنا اثر هذه العوامل على اختيار ايهما افضل و ادق ...
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(Sudan University of Science and Technology, 2019-03-10)Adomian analytical decomposition method is one of the important method in solving integral and differential equations. In this study we handled the analysis of the method and then the solution of Volterra integral ...
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(Sudan University of Science and Technology, 2019-03-10)Quinoline derivatives are very important in synthetic medicinal chemistry because of their wide biological range in natural products and drugs; this importance led to consider the activity of newly designed and synthesized ...
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(Sudan University of Science and Technology, 2019-01-10)This study aimed to identify the heavy metals in cosmetics powder using the Inductively Coupled Plasma / Optical Emission Spectroscopy technique (ICP-OES). This method gives a clear picture of the powder ingredients of ...
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(Sudan University of Science and Technology, 2018-11-10)In this work, we investigated the effect of magnetic field Intensity on Dye Solar Cells that made from 15 samples in three groups by three different dyes (Rhodamine B, Coumarin 500 and Eriochrome black T) when effect by ...
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(Sudan University of Science and Technology, 2018-10-10)The results of this study were carried out to determine the composition of the uranium element in the Nuba Mountains area in Southern Kordofan region in the regions of Mount Uro and Mount Kurn. Forty samples were collected ...
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(Sudan University of Science and Technology, 2018-12-10)The seeds from Adansonia digitata (Baobab) were subjected to standard chemical analysis to evaluate their properties. The physicochemically properties of Hexane extracted oil and its biodiesel were also characterized. ...
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(Sudan University of Science and Technology, 2018-06-10)We show the decompositions of Besov-Hausdorff and Triebel-Lizorkin-Hausdorff spaces. We also show the characterizations of Besov-Lipschitz, Besov-Morrey and Triebel-Lizorkin-Morrey spaces by maximal functions, local mean ...
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(Sudan University of Science and Technology, 2018-10-29)This research was aimed to study the flavonoids of the heartwood of Acacia nilotica var. tomentosa, Indigofera oblongifolia, and the roots of acacia ehrenbergiana. Compound I was isolated from Acacia nilotica var. tomentosa. ...
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(Sudan University of Science and Technology, 2018-10-29)The controller is an element which accepts the error in some form and decides the proper corrective action. The block diagrams is shorthand pictorial representation of control system of the cause-and-effect relationship ...
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(جامعة السودان للعلوم والتكنولوجيا, 2018-08-27)هدفت هذه الدراسة إلى معالجة مشكلة التداخل الخطي المتعدد بين المتغيرات التفسيرية عن طريق إستخدام إسلوب المكونات الرئيسية،وإسلوب إنحدار الحرف، وطريقة حذف المتغيرات ذات الإرتباطات العاليه،وإختيار افضل طريقه لمعالجة مشكلة ...
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(Sudan University of Science and Technology, 2018-11-07)The Trudinger inequality for Riesz potentials of functions in Musielak-Orlicz spaces, in generalizes Orlicz spaces and Sobolev embedding on generalized Lebesgue and Sobolev spaces are studied. We determine the boundedness ...
Now showing items 221-240 of 647
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