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Influences of psychological contract fulfilment and breach : a study of the South African public sectorObuya, Caroline Adhiambo. January 2013 (has links)
M. Tech. Organisational Leadership / The aim of this research to investigate the key factors impacting on retention of skilled employees in the public sector using the psychological contract as a framework in an emerging economy context. The focus of the study was on employees perspectives regarding elements of the employment relationship they consider valuable and how these inducements affect their commitment and loyalty to the organization.
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Reactivity and galvanic interactions between sulphide minerals in acidified hydrogen peroxide.Lephuting, Senzeni Sipho. January 2013 (has links)
M. Tech. Metallurgical Engineering. / Aims to provide a mineralogical basis for understanding the galvanic dissolution and interaction of sulphide ores in presence of hydrogen peroxide using electrochemical technique. The research aim to achieve the following objectives: study the mineralogical characteristics of different sulphide ores ; study the sulphuric acid dissolution behaviour of the sulphide ores in the presence of hydrogen peroxide and to investigate the interaction of the mineralogy on the ores and hydrogen peroxide during dissolution.
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Raptor codes-based enhancement of the mobile WiMAX physical layer.Abimbola, Idris Adedapo. January 2013 (has links)
M. Tech. Electrical Engineering. / Discusses raptor codes as fundamentally designed for erasure control coding technique, however, the overall objective of this dissertation is to examine their efficacy as a forward error correcting code as well as their spectral efficiency in the IEEE 802.16e-2005 physical layer. The specific objectives include: to analyse the error performance of raptor codes in mobile WiMAX ; to investigate the error performance of the various LDPC code classes defined in the mobile WiMAX standard ; to compare the performance of raptor codes and LDPC codes over the Additive White Gaussian Noise (AWGN) channel and to compare the spectral efficiency of raptor codes with that of the LDPC codes.
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Management and administration of risk in the South African Post OfficeKhotsa, Kgotola Charles. January 2014 (has links)
M. Tech. Public Management / The primary objective of this study was to research the effects of crime risk in the Postal services that are located in the North East (postal) Region of South Africa, and to recommend some measures which can be explored to ameliorate the problem from a Public Management and Administration point of view.
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In-situ scanning electron microscopy studies on the uniaxial tensile deformation mechanisms in Aluminium alloy 5083.MotsI, Glenda Tsholofelo. January 2014 (has links)
M. Tech. Metallurgical Engineering. / Aims to study tensile deformation mechanisms of aluminium alloy 5083 using in situ SEM techniques. The objectives to achieve this aim are: to investigate the effect of strain rate on mechanical properties ; investigating anisotropy mechanical properties at varying strain rates ; investigating microstructure anisotropy behaviour at varying strain rates and to investigate the influence of intermetallic particles during tensile deformation.
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Design of novel bending press tools using reconfigurable manufacturing principles.Gwangwava, Norman. January 2014 (has links)
D. Tech. Industrial Engineering. / Aims to develop new optimized press brake concepts using Reconfigurable Manufacturing System (RMS) principles. The objectives of the research are articulated as follows: Research and identify part/ product families currently being manufactured on existing bending press tools and the respective technologies used. Design new press brake concepts and possible reconfigurations to be incorporated in future bending press tools based on part/ product families. To design the library of modules for the bending press tools based on new concepts and reconfiguration mechanisms formulated. To manufacture prototype(s) based on new concepts and perform experimental tests to evaluate performance of the designs.
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Management of small water treatment plants for the production of safe drinking water in the Gauteng ProvinceOkeyo, Allisen. January 2011 (has links)
M. Tech. Water Care / Aims of the study was to recommend probable management procedures that could be used in small water treatment plants in order to produce safe drinking water.
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Human sperm diagnostic tests : a sequential approach during assisted reproduction managementAbu Hasan Abu, Dalya. January 2011 (has links)
D. Tech. Biomedical Sciences. / Discusses despite significant advances in andrological techniques, the execution of semen analysis is currently not performed in a sequential manner. As such, it is important that reproductive biology laboratories establish an optimal diagnostic scheme that will assist reproductive health workers to direct patients to a specific therapeutic intervention and procedure.
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Modeling and simulation of hydrogen storage device for fuel cell plantAkanji, Olaitan Lukman. January 2011 (has links)
M. Tech. Hydrogen storage modeling. / In this dissertation, a 2D dynamic simulation for a portion of metal hydride based hydrogen storage tank was performed using computational software COMSOL 4.0a Multiphysics. The software is used to simulate the diffusion and heating of hydrogen in both radial and axial directions. The model consists of a system of partial differential equations (PDE) describing two dimensional heat and mass transfer of hydrogen in a porous matrix. This work provides an important insight to the fundamental understanding of multi-physics coupling phenomena during hydrogen absorption/ desorption process. The simulation results could be applied to the on-board hydrogen storage technology, in particular for the hydrogen supply of a fuel cell for powering of a hydrogen fuel cell vehicle.
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Influence of Mango secondary metabolites on Procontarinia infestationAugustyn, Wilhelmina Agnes. January 2011 (has links)
D. Tech. Chemistry. / Discusses the extent of mango cultivar susceptibility to gall fly infestation can be predicted by the composition of secondary metabolites produced by the tree.
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