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College of Science
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(Sudan University of Science and Technology, 2018-08-03)Nano science plays an important role in modern technology. This motivates trying to study the change of some electrical properties due to the change of Nano size structure. The aim of this work is to see how change of nano ...
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(جامعة السودان للعلوم والتكنولوجيا, 2018-05-03)يهدف هذا العمل للحصول على مواد مفيدة وذات قيمة عالية من مخلفات شجرة نخيل التمر حيث تم إستخدام ليف النخيل وسعف النخيل لهذا الغرض، ولتحقيق هذا الهدف تم حرق العينات بواسطة ليزر ياج النيوديميوم بقدرة خرج مقدارها 40 واط لمدة ...
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(جامعة السودان للعلوم والتكنولوجيا, 2018-06-03)هدفت هذه الدراسة إلى إجراء مقارنة بين الكواشف الغازية والكواشق شبه الموصلة من خلال دراسة خصائصها وطرق عملها ومكوناتها. ومن خلال الدراسة والمقارنة وجد أن الكواشف شبه الموصلة افضل من الكواشف الغازية وذلك لأن سرعة تفاعلها ...
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(Sudan University of Science & Technology, 2018-05-01)Resistance is the quality of a conductor which hinders the flow of electrons and the resistance a wire offers to a current depends on its material, its cross-sectional area, and length. However resistance also depends ...
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(Sudan University of Science and Technology, 2018-04-10)This work reports obtaining of useful and highly value material from wheat bran and sorghum bran .For this purpose , samples were burned for 30s using Nd :YAG laser with output power 60 Watt. The products after burning ...
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(Sudan University of Science and Technology, 2018-06-10)Research on nanomaterials has become increasingly popular because of their unique physical, chemical, optical and catalytic properties compared to their bulk counterparts. Therefore, many efforts have been made to synthesize ...
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(Sudan University of Science & Technology, 2018-05-23)A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. In this thesis three types of thin films of silicon dioxide were prepared then doped using three ...
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(Sudan University of Science & Technology, 2018-05-28)Super conductors are one of the most important physical properties of Matter. Thus it is very important to direct attention on them. This work aim is to explain some thermodynamic properties of superconductors. The ...
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(Sudan University of Science & Technology, 2018-06-28)The calculation of phase transition in the configurational state (i.e. atomic arrangement) of AuxCu1-x nanoparticle (or Nano alloy)have been investigated by first principles and Monte Carlo calculations. The cluster ...
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(Sudan University of Science & Technology, 2018-04-01)The aim of this study was the extraction of baobab oil and chemical characterization of the fruits ,seeds and oil. Baobab samples were obtained from Alobayed market(Kordofan).Ash and moisture contents were measured for ...
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(Sudan University of Science & Technology, 2018-03-01)Some of the mechanical properties of polymer, such as tensile test, creep and swelling, were studied for two types of tire rubber at different concentrations of black carbon(70% ,30%) respectively. In the tensile test, the ...
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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, 2017-06-05)In this study, the fixed oil of Swietenia mahagoni was extracted from seeds. The oil was analyzed by gas chromatography-mass spectrometry (GC-MS) and 24 components were identified. Major constituents were: 9-octadecenoic ...
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(Sudan University of Science and Technology, 2017-12-25)The roots of Acacia nilotica subspecies tomentoza were screened for major secondary metabolites. Phytochemical screening revealed the presence of flavonoids , tannins, steroids and alkaloids. From the roots a flavonoid-compound ...
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(Sudan University of Science and Technology, 2017-07-03)The wave and partite nature of electromagnetic wave were thought to be independent of each other. In this work the string theory can link them with each other. Treating light as vibrating string in free space, a useful ...
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(Sudan University of Science and Technology, 2017-11-22)There is no one treatment for cancer and the search for ways to combat cancer have led to many different treatments, including surgery, chemotherapy, and radiation therapy. However, these treatments are not always effective, ...
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(Sudan University of Science and Technology, 2018-05-15)Nobel metals nanoparticles particularly silver (Ag) and gold (Au) exhibit unique and tuneable optical properties owing to localized surface plasmon resonance. This phenomenon occurs when noble metals have size in nanoscale ...
