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Showing results 162021 to 162030 of 175217

  1. The optimisation and evaluation of VC-WC-Co hardmetals.
    Whitefield, David James., 2011-10-05T12:19:22Z
    The use of vanadium carbide in hardmetals is not new. The original use of vanadium carbide was as a grain refiner in ultra-fine and fine-grained hardmetals in amounts up to lwt%. These additions of VC were made to prevent discontinuous grain growth, thereby maintaining a fine carbide microstructu ...
  2. Profit and service quality in selected motor retailers for servicing of passenger vehicles.
    Cipolat, Riccardo Angelo., 2011-10-06T07:54:04Z
    In this research the link between a measure of profit and service quality was investigated. The service quality was measured through two models: SERVQUAL and SERVPERF. SERVQUAL measured the service quality through the expectations the interviewees had, of the service to come, and their perception ...
  3. What role do nurses play and what are the cultural challenges they face in culture brokering in HIV/AIDS prevention activities in Mohale"s Hoek District, Lesotho?
    Lerotholi, Polo, 2011-10-06T08:14:35Z
    This Research Report explores the cultural challenges faced by nurses in HIV/AIDS prevention activities in five Health Centers of Mohale’s Hoek, Lesotho. It investigates in turn what role nurses play as culture brokers. Lesotho faces major challenges from HIV/AIDS with high prevalence rates. Despite ...
  4. The aetiology and nature of paediatric dysphagia (0-18 months) in state hospitals Johannesburg, Gauteng.
    Fourie, Andrea, 2011-10-06T08:37:57Z
    Background: Many infants in developing countries are faced with poverty, poor nutrition, limited access to healthcare, and exposure to communicable diseases that place them at risk for negative developmental consequences. Dysphagia is estimated to occur in 25-40% of normally developing, and 80-90 ...
  5. SLI or "slow" to develop English additional language (EAL) learners - how do we know? : an in depth investigation of English additional language learners in the foundation phase with suspected specific language impairment.
    Rijhumal, Meera Surendar, 2011-10-06T09:41:01Z
    Background: This study formed part of a larger longitudinal research study by Jordaan (2009), who tracked the development of language for academic purposes in grade 1- 3 English Additional Language (EAL) and English First Language (EFL) learners attending English only programmes in Gauteng over a pe ...
  6. Spatial decision support system for the selection of an overhead electrical transmission line corridor.
    Kershaw, Claude Ian., 2011-10-06T10:42:30Z
    This dissertation presents research into the possibility of using GIS Spatial Analysis and Multi-Criteria Decision Making to determine a corridor for electric overhead transmission power line routing. The research described in this dissertation examines the feasibility of developing a spatial de ...
  7. Carbon dioxide absorption using fresh water algae and identifying potential uses of algal biomass.
    Kativu, Edmore., 2011-10-06T11:34:33Z
    Across the world, industrialization and the consequent emergence of economies reliant on fossil fuels have inevitably resulted in the adverse condition of atmospheric warming known as the greenhouse effect. Anthropogenic CO2 has been identified as one of the major causes. This research focuses on in ...
  8. On the toughening mechanisms present in boron suboxide materials with sintering aids.
    Bush, Peter Robert, 2011-10-06T12:56:26Z
    The fracture toughness of polycrystalline boron suboxide has been substantially improved through the addition of a low amount of various sintering aids Determining the reasons behind the small amount of secondary phase increasing the toughness of boron suboxide to such an extent was the focus of ...
  9. Modeling of the corona ionization space propulsion system
    Pokaha, Marius Tchonang, 2011-10-07T09:21:37Z
    MSc., Faculty of Science, University of the Witwatersrand, 2011 ...