University of Khartoum

Browsing Science and Engineering by Issue Date

Browsing Science and Engineering by Issue Date

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  • Hashim, Mohammed (University of Khartoum, 1988)
    In principle, a current driven pump (CDP) is powered by a zero gradient liquid flow through a turbine element that, in turn, powers a pump that lifts water to nearby farms. Due to some years' experience with CDPs in Sudan ...
  • Elfaki, Moawia (University of Khartoum, 1997)
    One of the promising structured source of learning can be found in the recent work on neural networks. Neural network can serve as a knowledge base of expert system that does classification tasks. New method for ...
  • Mohamed, Magdi (uofk, 2002-03)
    This paper is concerned with the study of swelling behaviour and strength characteristics of expansive soils in order to develop new design charts. Expansive soil samples with high plasticity have been compacted at a wide ...
  • Khalid, Mohamed (University of Khartoum, 2008)
    Kinetics and mechanisms of oxidation of alanine, aspartic acid, glutamic acid, glutamine, glycine, lysine, phenylalanine, tyrosine, and valine by peroxodisulphate ion have been studied in aqueous acidic (sulphuric acid) ...
  • ابوشامه, هند (University of Khartoum, 2008)
    This study builds upon the established genetic control of antimalarial immune responses and prior association studies by using a family-based ap- proach, transmission disequilibrium testing, to identify immune response ...
  • Abushama,Hind (University of Khartoum, 2008)
    Previous studies have established a genetic component for susceptibility to malaria. Here we use a pedigree based approach, and transmission disequilibrium testing (TDT), to identify immune response genes that influence ...
  • Khalid, Mohamed (University of Khartoum, 2008-07)
    The kinetics and mechanism of oxidation of alanine, asparagine, cysteine, glutamic acid, lysine, phenylalanine, and serine by peroxydisulfate ion have been studied in aqueous acidic (sulfuric acid) medium at the temperature ...
  • Mohammed EL-Sadik, Fayez (Sudan Eng. Society., 2008-09)
    Results of a maximum power transfer theorem for transmission systems are presented. The theory is based on conditions referenced to a single node voltage constraint with the other voltages coming out as a result of ...
  • Ali Karrar, Abdelrahman; Zakaria Yahia, Elfadil (Sudan Eng. Society., 2008-09)
    In this paper, several techniques and tools used for voltage stability analysis in power systems are described and applied to the National Grid of Sudan. The paper considers the most common methods used in static voltage ...
  • Siddeeg,Saif Eldin M. B.; Sam,A. K .; Osman,A. A.; Salih,Isam; Khalid,Mohammed A. A. (University of Khartoum, 2008-11-26)
    In an attempt to understand the geochemical behaviour of 238U, 232Th, 40K and the fallout nuclide 137Cs in aquatic sediments, surface sediments were collected from White, Blue and River Nile and fractionated into seven ...
  • Khalid, Mohamed (University of Khartoum, 2009)
    The kinetics of oxidation of alanine, glutamic acid, lysine, and phenylalanine by peroxydisulfate ion has been studied in aqueous sulphuric acid media. The main products of the oxidation are the corresponding carbonyl ...
  • Elkhalifa, Akram A. (2009-06)
    Nowadays, investment in real estate is a unique investment for a diversity of reasons. The RE investment is characterized by high risk associated with the relatively high returns. Investment in the sector of real state ...
  • Khalid, Mohamed (University of Khartoum, 2010)
    The interaction of ATP with the phosphoenzyme of Na þ ,K þ -ATPase from pig kidney, rabbit kidney, and shark rectal gland was investigated using the voltage-sensitive fluorescent probe RH421. In each case, ATP ...
  • Hashim, Mohammed (University of Khartoum, 2010)
  • Hashim, Mohammed (University of Khartoum, 2010)
    Following on a preceding paper of the same title [1], and the establishment of the dependence of the wind-pump performance on the wind-pump’s Froude number, , an analytical analysis of the wind-pump’s design parameters ...
  • Sid-Ahmed Mannan, Mohamed; Ali Karrar, Abdelrahman; Hamouda, El-Amin (Sudan Eng. Society Journals ., 2010-03)
    Electricity industry was considered a textbook natu ral monopoly. Accordingly, governments are the best able to manage the large amounts of ca pital necessary to develop the sector and bear the long time costs recovery. ...
  • Abdelrahman Abdelkarim, Adam; Ali Karrar, Abdelrahman (Sudan Eng. Society Journals ., 2010-03)
    This paper covers an accurate approach which has be en used to develop trends leading to the forecast of electricity demand over the period 2006 -2030, for the Sudan National Grid. The proposed approach is based on an ...
  • Mohammed EL-Sadik, Fayez (Sudan Eng. Society Journals., 2010-03)
    It has been concluded for quite some time now that no algebraic equation has been derived for the steady-state stability limit (SSSL) of a transmission system with resistance and node voltage constraints. As a resul t, ...
  • Khalid, Mohammed Khalid; Cornelius, Flemming; Clarke, Ronald J. (University of Khartoum, 2010-05)
    Investigations of the E2 -> El conformational change of Na±,K±-ATPase from shark rectal gland and pig kidney via the stopped-flow technique have revealed major differences in the kinetics and mechanisms of the two enzymes. ...
  • Hashim, Mohammed; Younis,Mohamed ElHadi Ahmed (University of Khartoum, 2010-08)
    The importance of this study arises from the nature of the Sudanese crude which contains wax. The crude gels when the line is shutdown for any reason. To restart a pipeline filled with the waxy crude oil, a sufficient ...

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