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  • McLaren, M; Sidderas-Haddad, E; Forbes, A (Academy of Science of South Africa (ASSAf), 2011-09)
    It is now well known that matter may be trapped by optical fields with high intensity gradients. Once trapped, it is then possible to manipulate microscopic particles using such optical fields, in so-called optical tweezers. ...
  • Mosangi, Damodar; Moyo, Lumbidzani; Kesavan Pillai, Sreejarani; Ray, Suprakas Sinha (Royal Society of Chemistry, 2016-10)
    In this study, a pharmaceutically active ingredient, acetyl salicylic acid (ASA), was intercalated into ZnAl layered double hydroxide (LDH). The LDH–ASA nanohybrid material was characterized by XRD, FTIR, SEM, ICP-MS, TEM ...
  • Olwal, TO; Masonta, MT (2012-11)
    This study has presented the End to End (E2E) upper bound capacity limits for high performance mesh nodes that can be deployed in rural and remote areas. The achievable capacity limits for both irregular and clustered ...
  • Olwal, T; Masonta, M; Mekuria, F; Roux, K (InTech, 2012-08)
    Next generation fixed wireless broadband networks have immensely been deployed as mesh networks in order to provide and extend access to the internet. These networks are characterised by the use of multiple orthogonal ...
  • Meiklejohn, C; Goss, H; Whisken, J (CSIR, 2008-11)
    This paper presents the CSIR’s contribution to technical advances in the approach to provincial spatial planning in South Africa. It demonstrates the CSIR’s involvement in conducting the national Provincial Growth and ...
  • Wright, C (Malnor, 2012-10)
    Schools have a unique advantage to help curb the negative human health effects of excess personal sun exposure by providing a sun safe environment and promoting sun protection behaviour among children and adolescents.
  • Chunilall, Viren; Wesley-Smith, J; Bush, T (Microscopy Society of Southern Africa, 2009-12)
    Wood fibres are the raw material used in the production of dissolving pulp for the manufacture of cellulose derivatives such as viscose and cellulose acetate. At the microscopic level, the wood cell wall is organised in ...
  • Garland, Rebecca M (Academy of Science of South Africa, 2012-02)
    This article discusses the effects of acid mine drainage on human health. Skin irritation, kidney damage, neurological diseases are some of the human health effects.
  • Garland, Rebecca M (Academy of Science of South Africa, 2011)
    Acid Mine Drainage (AMD) has recently attracted lots of attention in South Africa, both in parliament and in the media. AMD is formed in the mine itself through a variety of chemical reaction pathways, before it enters the ...
  • Vadapalli, VRK; Zvimba, JN; Mathye, M; Fischer, H; Bologo, L (Taylor & Francis, 2015-10)
    This study investigated the implications of using two grades of limestone from a paper and pulp industry for neutralization of acid mine drainage (AMD) in a pilot sequencing batch reactor (SBR). In this regard, two grades ...
  • De Beer, Morris; Maree, JP; Wilsenach, J; Motaung, S; Bologo, L; Radebe, V (2010-09)
    The gold mines on which much of South Africa’s wealth was founded are closed or closing. Mining concerns therefore have stopped pumping underground water from the mines which are filling with water (AMD) that is acidic, ...
  • Martirosian, O; Davel, M (2008-11)
    Diphthongs typically form an integral part of the phone sets used in English ASR systems. Because diphthongs can be represented using smaller units (that are already part of the vowel system) this representation may be ...
  • Van Niekerk, DR; Barnard, E (PRASA 2008, 2008-11)
    The quality of corpus-based text-to-speech (TTS) systems depends strongly on the consistency of boundary placements during phonetic alignments. Expert human transcribers use visually represented acoustic cues in order to ...
  • Kleynhans, N; Molapo, R; De Wet, Febe (PRASA, 2012-11)
    The paper presents work aimed at optimising acoustic models for the AutoSecretary call routing system. To develop the optimised acoustic models: (1) an appropriate phone set was selected and used to create a pronunciation ...
  • Kleynhans, N; Molapo, R; De Wet, Febe (PRASA, 2012-11)
    The paper presents work aimed at optimising acoustic models for the AutoSecretary call routing system. To develop the optimised acoustic models: (1) an appropriate phone set was selected and used to create a pronunciation ...
  • Modipa, T; Davel, M; De Wet, Febe (ACM Digital Library, 2010-10)
    Automatic speech recognition (ASR) systems are increasingly being developed for under-resourced languages, especially for use in multilingual spoken dialogue systems. We investigate different approaches to the acoustic ...
  • Brink, S; Dorfling, C; Aldrich, C (Elsevier, 2016-05)
    Relatively small rocks that detach from stope hanging walls during periods when miners are working in the vicinity pose a lethal risk, and contribute significantly to underground fatalities in the South African mining ...
  • von Bergmann, HM; Forbes, A; Roberts, T; Botha, LR (International Society for Optical Engineering, 2008-08)
    Results are presented on the influence of acoustic waves on the performance of high-repetition-rate TEA CO2 lasers. It is shown that acoustic waves generated inside the laser cavity lead to nonuniform discharges, resulting ...
  • Du Plessis, C (Taylor & Francis, 2005-09)
    Sustainable development, and by extension sustainable building, is an evolving concept that relies for its implementation on the development of regional and local approaches and solutions. There is, in particular, a split ...
  • Rosman, Benjamin S; Ramamoorthy, S (IEEE Xplore, 2015-04)
    An agent tasked with solving a number of different decision making problems in similar environments has an opportunity to learn over a longer timescale than each individual task. Through examining solutions to different ...