- SUST Home
- →
- Theses and Dissertations
- →
- College of Science
- →
- PhD theses : Science
- →
- Recent submissions
JavaScript is disabled for your browser. Some features of this site may not work without it.
PhD theses : Science: Recent submissions
Now showing items 101-120 of 647
-
(Sudan University of Science & Technology, 2021-08-03)In this research we studied holographic space – time. The Theory of holographic space time is a temporal trial to quantize gravity and also to unify the well-known four forces of nature. The theory generalizes both string ...
-
(Sudan University of Science & Technology, 2021-07-01)In this research we study the existence of limit cycle for polynomial planar system. We present a proof of a result on the existence of limit cycle of the Quadratic System. The aims of this research is to study the existence ...
-
(Sudan University of Science & Technology, 2021-04-01)In this study the flavonoids of two potentially beneficial medicinal plants- Acacia tortilis and Acacia nubica – have been studied. Phytochemical screening of Acacia tortilis stem bark revealed the presence of sterols and ...
-
(Sudan University of Science & Technology, 2021-07-01)The goal of the study was to optimize microwave decomposition conditions (Acid mixture, sample weight, radiation power, radiation period) to determine several minerals (Fe, Mg, Zn, Cu Mn, Cr and Se) in multivitamin/multimineral ...
-
(Sudan University of Science and Technology, 2021-01-22)The aim of this study was to synthesize, characterize and utilize biopolymers based onhydroxamic acid chelating agents.Carboxymethyl cellulose (CMC) polymer and silica that are derived from biomass resources, were graft ...
-
(Sudan University of Science and Technology, 2021-06-15)In this thesis, we used the double Sumudu decomposition method to solve linear, nonlinear hyperbolic equations. This method is a combination of the decomposition method and double Sumudu transform. In order to check the ...
-
(Sudan University of Science and Technology, 2019-08-01)In this study, polymer blends thin films and polymer blends nano composites, of poly vinyl alcohol, gelatin and copper oxide nanoparticles were prepared in different ratios using casting method. Some of these thin films ...
-
(Sudan University of Science and Technology, 2021-06-01)In this study the oils from six plants of medicinal attributes (Indigofera arrect, Indigofera hirsutal, Lagenaria siceraria, Fallopia conuolulus , Dicoma tomentoza and Carica papya) have been investigated by GC.MS and the ...
-
(Sudan University of Science and Technology, 2021-02-28)Researchers are usually looking for simple methods like sol-gel process that leads to possible low cost and pure products and easy film processing on a variety of substrates for synthesizing metal oxides like ZnO nanostructures. ...
-
Twisting Non-Commutative L^p Spaces with Triples and Derivations of Semifinite von Neumann Algebras (Sudan University of Science and Technology, 2020-09-16)We introduces commutator estimates for interpolation scales with holomorphic structure and give a new and contractive spectral triples over the space of connections and study for crossed products. We show the noncommutative ...
-
(Sudan University of Science and Technology, 2020-12-29)We show the classification of the digit sets as product-forms. The spectral property of a class of cantor measures with consecutive digits and on R^*are given . The spectral structure of digit sets of self-similar tiles ...
-
(Sudan University of Science and Technology, 2020-08-12)In this study, six Sudanese key species in folk medicine (Allium cepa Subsp. cepa, Cucurbita pepo, Eruca sativa, Mentha virdis, Anethum graveolens and Artemisia herpa-alba) have been investigated. These plant species are ...
-
(جامعـــــــــة السودان للعلوم والتكنولوجيا, 2021-05-01)يهدف هذا البحث الى بناء أنموذج رياضي لبعض من منتجات شركة مصافي الوسط (مصفى الدورة )و حل الانموذج باستخدام اسلوب البرمجة الخطية الضبابية والشبكات العصبية الاصطناعية ,اذ تم ازالة الضبابية من الانموذج باستخدام اكثر من طريقة ...
-
(جامعـــــــــة السودان للعلوم والتكنولوجيا, 2021-01-03)ان من اهم النماذج التي يمكن تطبيقها بوجود حالة عدم التجانس في التباين هي نماذجARCH) /GARCH).وتشير الدراسات الكمية الى ان السلاسل الزمنية لبعض المتغيرات تتعرض لتقلبات هيكلية واحداث عارضة,ولذلك يكون من الافضل تحليل تلك ...
-
(Sudan University of Science and Technology, 2020-10-15)This study based on operator theory and joint similarity to operators on noncommutative varieties with strong deformation estimates deification and an excursion for the Berezin-Toeplitz quantization . The basic asymptotic ...
-
(Sudan University Of Science & Technology, 2020-12-01)This study aims to obtain a sustainable source of energy from natural and environmentally friendly resources. Ricinus communis seeds collected from Dongola city, northern state – Sudan were used as raw material for ...
-
(Sudan University Of Science & Technology, 2021-02-01)This study describes the stability of chemical and physical properties of single-use polypropylene syringes under elevated temperature and relative humidity. 300 pieces of syringes were kept in a controlled room for six ...
-
(Sudan University of Science and Technology, 2021-03-12)The Hardy inequality, compact Sobolev embeddings and L^p-estimates for the torsion functions are studied. We find the estimates for the torsion functions with Robin or Dirichlet boundary conditions and Sobolev constants. ...
-
(Sudan University Of Science & Technology, 2019-01-01)Thirteen (composite) ground water and five surface water samples were collected from different locations in South Kordofan State, during autumn and winter seasons of 2017.The samples were analyzed using various physicochemical ...
-
(Sudan University Of Science & Technology, 2021-01-01)Cork is considered one of the polymers of very low industrial value and is used only for secondary purposes such as packaging, and it is possible to have any other uses of high value by doping the cork with materials ...
Now showing items 101-120 of 647
Share
