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PhD theses : Science: Recent submissions
Now showing items 561-580 of 647
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(Sudan University of Science and Technology, 2008-07-01)Characterization, thermodynamic, denaturation and mlocular expansion properties of A. seyal, A. senegal and A. polyacantha gums were studied using physicochemical methods. Characterization studies, which are partly used ...
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(Sudan University of Science and Technology, 2010-09-01)Abstract We study the variations on a strange semi-continuity result and the function spaces between the bounded mean oscillations with the multipliers of the critical Sobolev spaces . We show the weak semi-continuity ...
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(جامعة السودان للعلوم والتكنولوجيا, 2010-01-01)في هذا البحث استخدم نموذج البرمجة الديناميكية الذي يعتمد علي مبدأ الأمثلية في تعظيم الأرباح أوتقليل التكلفة في ادارة صناديق الاستثمار المفتوحة وهي خير مثال لمشكلة المخزون المعقدة ذات المشاكل متعددة المراحل. كما تناول ...
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(Sudan University of Science and Technology, 2008-08-01)We considerd and proved with an estimation the analogues of Brown- Halmos and Neahri's theorems on the norms of Hankel operators, acting on Subspaces of Hardy type reflexive rearrangement-invariant spaces with nontrivial ...
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(جامعة السودان للعلوم والتكنولوجيا, 2010-01-01)تناولت هذه الدراسة تقييم أداء الخدمات الصحية في محليات الخرطوم السبع من خلال قياس الكفاءة النسبية لكل من المستشفيات، المراكز الصحية، ومراكز الرعاية الصحة الأولية باستخدام أسلوب تحليل مغلف البيانات، وتم عمل أربعة نماذج ...
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(Sudan University of Science and Technology, 2010-12-01)3,4-dihydropyrimidin-2(1H)-ones and their derivatives have attracted increasing interest owing to their therapeutic and pharmaceutical properties, such as antiviral, antibacterial, anti-inflammatory and antitumor ...
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(Sudan University of Science and Technology, 2011-11-01)Cefixime trihydrate and lisinopril dihydrate were subjected to different ICH, USP, and Sudanese environment prescribed stress conditions of thermal stress, sun light ,UV light and hydrolysis as prescribed in ICH and ...
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(Sudan University of Science and Technology, 2011-03-01)respectively. The effect of supplementation to chronic renal failure patients with crude gum Arabic, Fraction I and Fraction II for 6 weeks revealed that: Crude gum Arabic decreased blood urea levels by 20. %; creatinine ...
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(جامعة السودان للعلوم والتكنولوجيا, 2011-01-01)من الطبيعي في العلاقات الاقتصادية الكلية وجود تداخلات خطية بين المتغيرات الاقتصادية المختلفة. مع ضرورة عدم تأثير هذه التداخلات الخطية على مقدرات النموذج المراد تقديره، حيث أن الحصول عن نماذج قياسية مقدّرة لدوال الاقتصاد ...
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(Sudan University of Science and Technology, 2012-03-01)Studies on the stability of money demand functions have received prominent attention in the literature. This is due to the importance of having stable money demand functions for economic predictions to ensure long- term ...
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(Sudan University of Science and Technology, 2012-10-01)This research aimed to study the flavonoids of the heartwood of acacia nilotica var adstringens, acacia nilotica var nilotica and leaves of Lonchocarpus laxiflorus. From the methanolic extract, tow compounds (I and II) ...
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(Sudan University of Science and Technology, 2012-12-01)This dissertation will attempt to demonstrate the potential benefits of using Stochastic Processes for modeling and interpreting historical rainfall records by the examination of weekly rainfall occurrence by using ...
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(Sudan University of Science and Technology, 2012-04-01)In this research were analyzed 20 samples collected water wells, where sedimentary rocks exists, were collected. The concentrations of Fe, Si, Mg and Ni were identified by laser induced breakdown spectroscopy (LIBS) and ...
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(Sudan University of Science and Technology, 2012-10-01)These research is focusing on Phytochemical and antimicrobial studies of some flavonoids from tow medicinal plants Tamarix nilotica and Hyphaene thebacia uses in Sudanese ethnomedicine . The study confirm the present ...
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(Sudan University of Science and Technology, 2012-03-01)This study is directly focused on the importance of improving socio-economic indicators of sustainable human development in South Sudan States by calculating human poverty index (HPI) in view of the fact that achieving ...
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(جامعة السودان للعلوم والتكنولوجيا, 2011-01-01)تهدف هذه الدراسة الى معرفة النموذج المناسب لوصف كمية الطاقة الكهربائية المنتجة ومنسوب النيل في الفترة (1يونيو 2009- 31 يوليو 2009) بواسطة نموذج واحد يشملهما معاً وذلك بإستخدام تحليل السلاسل الزمنية متعددة المتغيرات ومن ثم ...
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(Sudan University of Science and Technology, 2009-07-01)We consider the outstanding problem of Gravity Quantization. For this reason first we discuss the Geometric Quantization, which begins with defining a mathematical frame work for the algebra of observables that holds equally ...
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(Sudan University of Science and Technology, 2009-12-01)Characterization and emulsification properties of Acacia Senegal, Acacia Seyal, Acacia Polyacantha gums and their fractions were studied using physicochemical methods. The results show that the average value of ...
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(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. ...
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(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 ...
Now showing items 561-580 of 647
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