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PhD theses : Science: Recent submissions
Now showing items 261-280 of 647
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(Sudan University of Science & Technology, 2018-04-10)In this research oxovanadium complexes and di oxovanadium complexes (C1-C15) and ligands (L1-L16), specifically, organic ligands considered to be of biological importance, as insulin mimics. They were synthesized, and ...
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(Sudan University of Science and Technology, 2018-06-11)Recently, mankind's need for more amount of energy has been increasing day by day, though there is a trend to reduce the usage of the traditional energy source to an energy carrier (or fuel) that results in emitting ...
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(Sudan University of Science and Technology, 2018-02-21)In the present study three Sudanese medicinal plants Acacia albida, Acacia seyal and Tamarindus indica were investigated for their chemical constituents and their in vitro antimicrobial activity. Phytochemical analysis ...
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(جامعة السودان للعلوم والتكنولوجيا, 2018-04-10)إن الاستهلاك الكهربائي المتذبذب في ولاية الخرطوم حسب المواسم والعوامل المؤثرة عليه قادنا الي تحليل سلوك السلسلة الزمنية بالبحث عن المركبة الموسمية لذلك تمثلت مشكلة البحث في بناء نموذج قياسي مناسب للتنبؤ باستهلاك الكهرباء .
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(Sudan University of Science and Technology, 2018-02-10)We study the spectral properties and complemented invariant subspaces in the Bergman spaces having the codimension two property and also with the spectra of some translation and fiber dimension for invariant subspaces. We ...
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(Sudan University of Science and Technology, 2018-03-10)Euler-Lagrangian formalism was utilized in this work to obtain Schrödinger, Klein-Gordon and Dirac equation for frictional medium. Fortunately these equations are typical to that obtained by others. These equations were ...
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(Sudan University of Science and Technology, 2018-02-10)This study aims to identify a sustainable source of energy from natural and environment friendly resources. Karaya seeds were used as a biodiesel feedstock, and were collected form Al-Azaza Forest east of Al-Rusaires city ...
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(جامعة السودان للعلوم والتكنولوجيا, 2018-01-21)Nuclear reactions plays an important role in understanding nuclear structure . Nuclei with unsuitable compositions are unstable and they undergo spontaneous disintegration or nuclear decay. Nuclides that undergo spontaneous ...
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(جامعة السودان للعلوم والتكنولوجيا, 2017-12-10)ىدفت الد ا رسة التعرف عمى منيجية الستة سيجما ، ومدى توافر المقومات اللازمة لمتطبيق ، كذلك تقميل الوقت المستغرق لإنجاز العمميات وتقميل معدل الخطأ الى أقل ما يمكن وتحسين جودة العمميات ، ولتحقيق ىدف الد ا رسة قامت الباحثة ...
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(Sudan University of Science and Technology, 2018-02-10)Biodiesel produced from Jatropha curcus L fixed oil by trans-esterification process represents one of the most alternative fuel options to replace depleting fossil fuels. Physico-chemical parameters such as density, ...
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(Sudan University of Science & Technology, 2018-01-12)Thirty samples of the gum from Acacia oerfota were collected from two locations (15 sample from each location) from around Senga - Sinnar state and Wadel hadad - Aljazeera state - Sudan, during season 2015. Four composite ...
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(جامعة السودان للعلوم والتكنولوجيا, 2018-02-06)هدفت هذه الدراسة الى تقدير معلمات توزيعات ثنائي الحدين، بواسون،التوزيع الاسي، التوزيع الطبيعي وتوزيع قاما واتبع الباحث المنهج الوصفي التحليلي فيما يتعلق بالجانب النظري لموضوع الدراسة ولاغراض هذه الدراسة تم استخدام اسلوب ...
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(جامعة السودان للعلوم والتكنولوجيا, 2018-02-04)هدفت هذه الدراسة الى تقدير وتحليل العوامل المؤثرة على الناتج المحلي الاجمالي السوداني (الانفاق الحكومي، الانفاق الخاص، الاستثمار، الصادر والوارد) واتبع الباحث المنهج الوصفي التحليلي بالتطبيق على عينة من بيانات الناتج المحلي ...
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(Sudan University of Science and Technology, 2017-10-19)Computation of electron spin resonance parameters (Hyper Fine Coupling Constant and gtensor) by Density Functional Theory using the gauge-including projector augmented wave (GIPAW) method, and Gaussian09 program were ...
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(Sudan University of Science and Technology, 2018-02-10)String theory is now a day one of the most attractive physical model that may open a new horizon to give better understanding of the physical world. The aim of this work is to use string model to explain some optical ...
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(Sudan University of Science and Technology, 2018-01-10)Left handed materials opens new horizon in modern optics. This motivates trying to build a theoretical model that can help in predicting new materials. The aim of this work is to how to control the physical properties so ...
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(Sudan University of Science and Technology, 2017-09-10)Breast cancer is responsible for most of the women deaths in the world, this situation leads to the importance of the design of new drug candidates. On the same way severe side effects and non selectivity of some drugs ...
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(Sudan University of Science and Technology, 2017-08-02)We study the asymptotic distribution and singular values of compact pseudo differential operators. We determine the boundedness of a certain class and estimates for Schatten-von Neumann norms of Hardy-Steklov operators in ...
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(Sudan University of Science and Technology, 2017-01-10)In 1992, Lee and Carter proposed a method which combines demography and stochastic to model and forecast the mortality rates, which became the reference and a leading statistical model. In this study we identified Cancer ...
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(Sudan University of Science & Technology, 2017-11-17)In this research work a feasible titanium dioxide photo-catalytic technology for removal of dyes from wastewater was explored in four stages; the synthesis and characterization of two catalysts, optimization of parameters ...
Now showing items 261-280 of 647
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