Bilal, Hassan Abdalla; Supervisor ,- Ahmed Hassan Ahmed(Sudan University of Science & Technology, 2012-07-01)
Rapid wear of drilling bits in oil exploration companies occur due to friction with the sand in mud layers, this wear causes the drilling bits to consume in large quantities and leads to frequent breakdowns of drilling ...
Mohammed, Murtada Mohammed Osman Elshiekh; Supervisor ,- Ahmed Hassan Ahmed(Sudan University of Science and Technology, 2011-02-01)
The cement material is considered to be one of a great importance in different aspects of building development projects and as a commodity for export and investment. Accordingly, the product should be identical to the ...
Eltayeb, Khalid Abd-Allah Ahmed; Supervisor ,- Ahmed Hassan Ahmed(Sudan University of Science and Technology, 2011-02-01)
Decision making process is one of the significant factors those affect on the success and continuity of any business. Decision making under conditions of uncertainty represents the major problem in most of manufacturing ...
