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PhD theses : Science: Recent submissions
Now showing items 341-360 of 647
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(Sudan University of Science and Technology, 2016-07-10)We give a cohomology of the complement of a free divisor and the computation of the logarithmic cohomology of the complement of a plane curve and for plane curves.The pattern-equivariant and comparing different versions ...
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Gabor Windows and Dual Systems with Characterizations of Modulation Spaces of Localization Operators (Sudan University of Science and Technology, 2016-08-10)We show the sparse complete Gabor frame with systems over irregular lattices .The pairs of dual Gabor frame generated by compact support , desired frequency localization and polynomials are considered . Similarly we consider ...
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(Sudan University of Science and Technology, 2016-08-10)This thesis considered statistical calibration models. It focused on Eiesinhart s calibration model for two tests X & Y where X is an exact but expensive and slow test and Y is less expensive but quick and cheap test. The ...
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(Sudan University of Science and Technology, 2016-09-10)Oil is produced from reservoirs in association with natural formation water or mixed formation water/injection. Removal of water is an essential step in petroleum industry for many technical reasons. The aim of this study ...
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Complete Manifolds and Log-Sobolev Inequalities for Subelliptic Operators with Functional Inequality (Sudan University of Science and Technology, 2016-10-10)We give the best constant with weights being powers of distance from the origin in weighted Sobolev inequality. Complete manifolds with non-negative curvature and Sobolev inequalities, convergence to equilbrium with ...
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(Sudan University of Science and Technology, 2016-08-10)The generalized special relativity is used to construct new quantum momentum perturbation theory. This theory is based on momentum eigen equation. Treating elementary particles as vibrating strings or strings of finite ...
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(Sudan University of Science and Technology, 2016-08-10)Mass and charge generation mechanisms are one of the challenging problems in field theories. The mass generation cannot be a achieved by Higgs mechanisms, according to generalized special relativity, as far as masses depend ...
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(Sudan University of Science and Technology, 2016-08-10)Nowadays, the use of facial makeup among most Sudanese ladies becomes very popular without being aware about the potential dangers that can threaten their health while using these cosmetics. Several facial cosmetics ...
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(جامعة السودان للعلوم والتكنولوجيا, 2016-09-10)تناولت هذه الدراسة نموذج تحليلي لواقع التنمية بولاية جنوب كردفان -محلية الدلنج ،حيث هدفت إلي معرفة العوامل التي تحقق التنمية وللوصول إلي معلومات وحقائق عنها، لذا فقد تم جمع البيانات الإحصائية الخاصة بمجتمع الدراسة بواسطة ...
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(Sudan University of Science and Technology, 2016-03-10)Electromagnetic radiation is a form of energy emitted and absorbed by charged particles; electromagnetic radiation is characterized by its biological effects on human cells. Mobile phone towers which emit electromagnetic ...
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(Sudan University of Science and Technology, 2016-06-10)In this research we treat the problem of integrability of Hamiltonian systems . There have been several methods for treating this problem depending on different situations. These methods include the first integral method ...
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(Sudan University of Science and Technology, 2016-08-10)Vegetable tannage is an eco-friendly method compared with environmental polluting chromium based method of tanning that is commonly used in commercial tanning and which prevents the collagen fibrous protein in animal skins ...
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(Sudan University of Science and Technology, 2016-08-10)This Thesis study semi local and hybrid density functional analysis of charge transition levels of native defects in BaF2 and CaF2 structures. The transition levels was calculated from the formation energies corresponding ...
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(Sudan University of Science and Technology, 2016-03-10)We show the multilinear singular integral operators on Triebel- Lizorkin and Lebesgue spaces and on Function spaces. We characterize the new bases and variable with applications of Triebel-Lizorkin and Besov spaces. We ...
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(جامعة السودان للعلوم والتكنولوجيا, 2016-08-10)نجد ان التنبؤ باستهلاك الطاقة الكهربية ضروري حتى نتمكن من استغلال الموارد المتاحة بأفضل الطرق الممكنة . ولصياغة النموذج اتبعنا تقنية الشبكات العصبية الاصطناعية كمنهجية جديدة للتنبؤ ومقارنتها مع منهجية بوكس –جنكنز في ...
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(Sudan University of Science and Technology, 2016-03-10)Chrozophora Plicata (argassi), Senna Singueana (Umm saaba) and Stylochiton borumensis (Moura) plants are widely used in traditional medicine to treat bacterial, fungal and viral infections. As a result there was need to ...
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(Sudan University of Science and Technology, 2016-05-10)This study was conducted to assess the natural radioactivity level and doses calculation in some areas in South Kordofan State. Samples were collected contain soil, rock and some crops from northern and eastern regions of ...
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(جامعة السودان للعلوم والتكنولوجيا, 2016-05-10)يعتبر موضوع تحليل السلاسل الزمنية من المواضيع الإحصائية المهمة في تحليل الكثير من الظواهر، السلسلة الزمنية عبارة عن مجموعة من المشاهدات آخذت على فترات زمنية نتيجة لتعقب هذة الظاهرة لفترة زمنية طويلة نسبياً وفي أغلب الأحيان ...
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(Sudan University of Science and Technology, 2016-03-10)The physics of conduction by hopping in superconductivity is not yet well established. This work is concerned with trying to throw light on conduction by hopping in superconductivity. It uses Schrödinger equation for ...
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(Sudan University of Science and Technology, 2016-06-10)In this research the variational iteration method is used for solving second-order initial value problems. The research discussed the use of this method to solve many important partial differential equations. This method ...
Now showing items 341-360 of 647
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