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PhD theses : Science: Recent submissions
Now showing items 81-100 of 647
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(Sudan University of Science and Technology, 2021-08-29)We study the sections , eestimates for the affine , dual affine quermassintegrals, slicing inequalities for measures and estimates for measures of lower dimensional sections of convex bodies in addition the boundary ...
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(Sudan University of Science and Technology, 2021-06-20)YBCO is a family of crystalline chemical compounds famous for displaying high-temperature superconductivity. The structural properties was studied by using X-ray powder diffraction (XRD), scanning electron microscope (SEM) ...
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(Sudan University of Science and Technology, 2021-05-25)The study started by harmonic maps, Morrey potentials and Restrictions of Riesz – Morrey – Hardy inequalities, Morrey spaces in harmonic analysis with generalized local Morrey spaces and the fractional integral operators ...
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(Sudan University of Science and Technology, 2021-09-22)We study the minimal hypersurfaces and 𝐿2-, 𝐿𝑝- harmonic 1-forms on submanifolds with finite total curvature on minimal hypersurfaces with finite total curvature, finite index and first eigenvalue of a stable minimal ...
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(Sudan University of Science and Technology, 2021-04-17)The method of Geographical Information System is used in building statistical samples that work to estimate phenomena affected by the surrounding environmental factors such as mosquitoes carrying dengue fever, which has a ...
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(Sudan University of Science and Technology, 2021-09-08)We deal with algebras of sphericl functions associated with covariant systems over a compact group with locally compact group action on 𝐶∗-algebras and compact subgroups and duality theory for nonergodic actions. The ...
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(Sudan University of Science and Technology, 2021-05-23)Nine samples of the Nigella-sativa were prepared so that in each sample there would be 5 grams of the Nigella-sativa and soaked it to 26.2% humidity, then exposed to heat at (100 degrees Celsius) for a period of 5 minutes, ...
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(Sudan University of Science and Technology, 2021-06-12)This study was designed to reveal the constituents of the fixed oils (extracted by solvent extraction method) of some Sudanese medicinal plants by using GC-MS (gas chromatography mass spectrometry), and to assess ...
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Symmetry for Extremal Functions in Subcritical and Fractional Caffarelli–Kohn–Nirenberg Inequalities (Sudan University of Science and Technology, 2021-09-08)We determine the best constants for Gagliardo–Nirenberg inequalities the applications to nonlinear diffusions, the first order interpolation inequalities with weights, the two subtle convex nonlocal approximations of the ...
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Optical, Electrical, Magnetic, and Structural Properties of Talha and Hashab Gum Doped with Iodine (Sudan University of Science & Technology, 2021-08-17)The aim of this work is to use Gum in solar cells and electronic circuits by doping it with suitable compounds to act as a semiconductor. This will minimize the cost of electronic circuits and solar cells. Two cultivars ...
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(Sudan University of Science and Technology, 2021-03-22)The aim of this study was prepare MIPs using Ibuprofen and diclofenac sodium as templates Three MIPs prepared of Ibuprofen using 1-vinylimidazole (1-VI) , 2-hydroxy ethyl metha acrylate (2-HEMA) and Styrene as functional ...
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(Sudan University of Science & Technology, 2021-02-01)The oils from targeted plant spies were extracted by n-hexane. Gas chromatography - mass spectrometry has been used for the identification and quantification of the studied oils. The extracted oils have been screened ...
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(Sudan University of Science and Technology, 2021-08-04)This work dealt with the synthesis, characterization of four hydroxamic acid and their complexes. The hydroxamic acids Ligands synthesized were (nitrobenzo hydroxamic (l1), N-p-tolyl nitrobenzohydroxamic acid (l2), ...
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(Sudan University of Science and Technology, 2021-07-10)This research was carried out to study the oils from six potential medicinal plants used in Sudanese system of medicine. The oils from the targeted plants have been studied by gas chromatography- mass spectrometry and then ...
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(Sudan University of Science and Technology, 2021-08-11)Benzohydroxamic acid(BHA) and Salicylohydroxamic acid (SHA)were prepared by reacting Benzoic and salicylic acids esters withfree hydroxylamine and recrystallizing them using hot water/acetic acid.characterized by their ...
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Study of Oils and Flavonoids From Some Medicinal Plant Grown in Sudan and Their Biological Activity (Sudan University of Science & Technology, 2021-03-01)The research is a study of five Sudanese Medicinal plants . The oils from the five plants were studied by gas chromatography- mass spectra and then the biological activity was evaluated. In addition the major flavonoid of ...
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(Sudan University of Science & Technology, 2021-03-01)This study was conducted on the oil, Biodiesel and Biodiesel blendsfrom Balanitesaegyptiacaseeds, the oil content of seeds was 53.9% w⁄w. The physicochemical propertiesof oil ,the moisture content was (0.27%), the viscosity ...
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(Sudan University of Science & Technology, 2021-05-01)This study aims at dealing with ContinuoustimeMarkov chain Model application on fault time of two machines (Mill troup &Boiler) an important machines in Asalaya Sugar Factory on season (January/2019–December/2019), which ...
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(Sudan University of Science & Technology, 2021-08-18)This research discussed how use the local materials in the felid of manufacture semiconductors material by determining the optical and structural properties of Gum Arabic doped by aluminum oxide made by sol gel and ...
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(Sudan University of Science & Technology, 2021-04-01)In this research two types of carbon nanotubes (CNTs) doping by cobalt oxide and carbon nanotubes doping by titanium dioxide were synthesized by chemical vapour deposition (CVD), the main objective of this research was to ...
Now showing items 81-100 of 647
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