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PhD theses : Science: Recent submissions
Now showing items 121-140 of 647
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(Sudan University Of Science & Technology, 2020-10-01)The main objectives of this research study were to know rock contents to classify their types through multi spectroscopic techniques and analyzing their electrical and optical properties. Energy Dispersive X-ray Fluorescence ...
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(جامعة السودان للعلوم والتكنولوجيا, 2021-03-01)إن أوجه التشابه بين الانحدار المتعدد المتغيرات المتعددة وتحليل الارتباط المعياري قد تم الاعتراف بها بشكل غير متسق في الأدبيات. توضح هذا البحث أنه على الرغم من أن الأهداف المعلنة لهذين التحليلين تبدو مختلفة ، إلا أن جانب ...
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(Sudan University Of Science & Technology, 2020-12-01)At the present work extraction, fractionation, phytochemical screening and biological activity of the extract for the stems of Solenostemma argel (S. argel) were studied. The results showed that S. argel contains medicinal ...
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(Sudan University of Science and Technology, 2020-11-10)Environmental, dietary habits, genetic, metabolic conditions, and life style factors play an important role in the formation of kidney and gall stones, which represent a prevalent and costly health problem. This study ...
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(Sudan University of Science and Technology, 2020-12-10)The oils from Solanum dubium, Martynia annua, Physalis angulate, Abutilon pannosum, Argemone Mexicana and Leonotis nepetifolia were subjected to GC-MS analysis. Eighteen components, Eighteen constituents, Twenty-three ...
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(Sudan University of Science and Technology, 2020-08-12)Companies are currently rich in huge amounts of data but are weak in information extracted from data. This massive data is a valuable resource. Although the concept of big data is still new, many international companies ...
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(Sudan University of Science and Technology, 2020-11-17)This study aimed to measure concentration of selenium (Se) in five Sudanese fruits: Ziziphus spina christi (Nabaque); Adansonia digitata (Tabaldi); Balanites egyptiacea (Laloub); Grewia tenax (Gudeim) and Tamarindus indica ...
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(Sudan University of Science and Technology, 2020-01-02)This study was undertaken to evaluate the effect of some physical parameters , chemical parameters and pesticides residual of drinking water in El-Managil area. Ninety nine samples were collected from middle El-Managil ...
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(Sudan University of Science and Technology, 2021-02-11)In this work we studied Lie groups and Lie algebras. We considered several examples of Lie groups and their associated Lie algebras. We treated the representation theory of Lie groups and used this theory in the problem ...
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(Sudan University of Science and Technology, 2018-10-22)The equivalence principle between inertial and gravity mass had been studiedin weak and strong gravity field. Also the Lorentz transformation foracceleration particle and photon (massless particle) had been discussion. ...
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(Sudan University of Science and Technology, 2020-10-20)This study was conducted to analyze the components of the plastic materials used in water and drug bottles by using laser induced breakdown spectroscopy (LIBS). Bottle samples were collected from some factories inSudan, ...
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(Sudan University of Science and Technology, 2020-08-12)The behavior of macroscopic electronic components can be easily understood using classical electric and electronic relations. Unfortunately such classical relations can no longer capable of describing nano electronic ...
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(Sudan University of Science and Technology, 2020-12-03)The embeddings and duality theorems between classical Lorentz spaces and the characterization of associate spaces of generalized weighted weak-Lorentz spaces with Lorentz-type spaces involvingweighted integral means are ...
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(Sudan University of Science and Technology, 2020-10-12)Solar cells based on organic-inorganic perovskites, such as CH3NH3PbX3 (X = I, Br, Cl), as light absorber materials, have recently emerged as one of the most promising class of photovoltaic devices. Given their high ...
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(Sudan University of Science and Technology, 2020-11-25)This study was conducted on industrial workshops located within residential neighborhoods in six sites in Khartoum State. The purpose of the research is to investigate the soil pollution caused by these workshops due to ...
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(Sudan University of Science and Technology, 2020-09-12)Landmine detection is an important and yet challenging problem that remains to be solved. It is not only a problems for military, but also for humanitarian concern. The goal for this research is to propose and perform the ...
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(Sudan University of Science and Technology, 2020-11-12)Optimal control is a mathematical method to fined values for a systems variables, so that these values lead the system to follow an optimal path or curve that achieves the maximum or minimum values for a characteristic ...
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(Sudan University of Science and Technology, 2020-02-10)This study focused on the extraction of active natural products, to be used as hair cosmetics from some local herbal products, determination of heavy metals ,antioxidants and proteins in some natural herbal plants and ...
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(Sudan University of Science & Technology, 2020-04-20)It is shown that composition operators on the Bloch space in polydiscs and on 𝜇-Bloch type spaces are dealt with. The weighted composition operators between μ- Bloch spaces on the unit ball, of 𝐶0(𝑋) and on Maeda-Ogasawara ...
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(Sudan University of Science and Technology, 2020-11-22)Atropine, Hyoscine, Nicotine and Solanine are alkaloids produced by plants from the family Solanaceae as a secondary metabolite and which have an intense physiological action on animals even at low doses. The main source ...
Now showing items 121-140 of 647
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