Thesis (Professional Degree)--University of Missouri, School of Mines and Metallurgy, 1920. / Leaf number 19 mistakenly duplicated in paging. The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed May 13, 2009)

Thesis (MScIng)--University of Stellenbosch, 2006. / Bibliography. Also available via the Internet.

Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1907. / The entire thesis text is included in file. Typescript. Illustrated by authors. T. C. Tseung determined to be Tsik Chan Tseung, J. C. Long determined to be James Carter Long, A. P. Fellows determined to be Aubrey P. Fellows, and E. R. Wash determined to be Edwin Richard Wash from "Forty-First Annual Catalogue. School of Mines and Metallurgy, University of Missouri". Title from title screen of thesis/dissertation PDF file (viewed January 26, 2009)

Thesis (M.S.)--University of Missouri, School of Mines and Metallurgy, 1921. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed June 3, 2009) Includes bibliographical references (p. 21-23).

Dissertation (PhD)--University of Stellenbosch, 2007. / Bibliography. Also available via the Internet.

Freiberg (Sachsen), Techn. Universiẗat, Diss., 2004.

Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1911. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed March 5, 2009)

M.Phil. / Company XYZ is a marginal copper and nickel mine relying on emergency funding from the government in order to make it through difficult cash-flow periods. Previous change initiatives within the organisation have failed dismally. Changes within the organisation are however inevitable in order to prevent Company XYZ from closing down. This research proposes to study certain management philosophies and methodologies being used within Company XYZ, with a view to implementing change initiatives in order to ensure survival of the organisation. This was done by, comparing current management practices found in Company XYZ with literature. Topics include the direction in which the organisation is moving, the vision, management philosophies, reliability/quality and the restructuring of the organisation. A literature review of business process re-engineering was performed and a comparison to total quality management was made. Management philosophies were investigated and it is recommended that Company XYZ adopt Demings management philosophy as it focuses on quality, continuous improvement and employee involvement. Demings' 14 points were highlighted and the benefits were related to Company XYZ. The smelter is maintenance intensive and suffers from breakdown maintenance. As a result, it is recommended that reliability centred maintenance principles are implemented. Company XYZ further need to introduce design review meetings in order to improve the quality in which modifications are implemented. Along with business process re-engineering, four organisational designs were investigated, i.e. the functional organisation, the product organisation, the matrix organisation and the network organisation. Due to the size and complexity of the organisation and the need to focus on business objectives, it is recommended that Company XYZ adopt the network organisational structure and it is further recommended that the smelter focus on processes. Therefore the smelter is to be viewed as a business unit and based on the advice of BPR practitioners it is recommended that the smelter focus on processes. In order to ensure that the proposed changes are implemented successfully, the issue of change management and the importance thereof was investigated. Factors that can affect the change process were highlighted.

Physical and mathematical modelling studies have been performed to investigate liquid flow driven by a horizontally injected gas. The experimental work consisted of water velocity measurements made at 100 locations within a plexiglass tank. Air was introduced into the tank through a series of side-mounted tuyeres, and the effect of air flowrate on water recirculation velocity was observed. The results of the experiments indicate that the maximum water velocity occurs at the water surface. The effect of bubbles coalescing from adjacent tuyeres was observed with increasing air flowrate, and was found to diminish the water recirculation rate. The mathematical model employed a variant of the Marker and Cell (MAC) technique to compute fluid flow with a free surface. The model predictions indicate that the flow in the experimental tank is largely driven by water flowing across the free surface. Based on this knowledge, qualitative predictions of the flow regimes in a Peirce-Smith copper converter and a zinc slag fuming furnace were made. / Applied Science, Faculty of / Mining Engineering, Keevil Institute of / Graduate

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