Author:Kleynhans, N; Barnard, EDate:Nov 2008The performance of trainable speech-processing systems deteriorates significantly when there is a mismatch between the training and testing data. The data mismatch becomes a dominant factor when collecting speech data for resource scarce ...Read more
Author:Makgamatha, AS; Zuva, T; Masonta, Moshe TDate:Aug 2018Growing demand of reliable and affordable wireless connectivity requires alternative solutions and television white space (TVWS) provides that opportunity. However, the biggest challenge in TV spectrum re-use is to allocate best channels for ...Read more
Author:Mosola, NN; Dlamini, Thandokuhle M; Blackledge, JM; Eloff, JHP; Venter, HSDate:Sep 2017Cloud computing brings flexible and cost effective services. However, security concerns plague the cloud. Data confidentiality is one of the concerns inhibiting the adoption of cloud computing. This concern stems from various cyberattacks ...Read more
Author:Slinger, J; Taljaard, Susan; D'Hont, FDate:Jan 2020This book captures the learning from a cross-comparison of seven international inlet or estuary mouth management situations. The conceptual framing is provided by a focus on systems knowledge and its development and use within coastal management. ...Read more
Author:Coelho, ST; Bouille, DH; Mani, SK; Stafford, William HLDate:Jan 2020The adequate collection and disposal of municipal solid waste (MSW) remain a challenge in developing countries as a direct consequence of inadequate practices, which in turn produce negative environmental and social impacts. In industrialized ...Read more
Author:Moschandreas, DJ; Watson, J; D'Abreton, P; Scire, J; Zhu, T; Klein, W; Saksena, SDate:Dec 2002In this chapter, the concept of exposure assessment and its evolution is introduced, and evaluated by critically appraising the pertinent literature as it applies to exposures to Particulate Matter (PM). Exposure measurement or estimation ...Read more
Author:Myburhg, JJDate:1975In August 1974, it was requested by the Combustion Department to produce a suitable char for use in their gas producer. It was decided to use Bank coal. The coal was washed at the Coal Preparation Pilot Plant on 19th Jul½ 1974 at a relative ...Read more
Author:Bezuidenhout, Petrone H; Kumar, Raju; Wiederoder, M; Schoeman, J; Land, Kevin J; Joubert, T-HDate:Feb 2017This paper describes the development and optimisation of a paper-based E. coli impedimetric biosensor for water quality monitoring. Impedimetric biosensing is advantageous because it is a highly sensitive, label-free, real-time method for the ...Read more
Author:Strauss, K; Brent, AC; Hietkamp, SDate:May 2006Current Life Cycle Impact Assessment (LCIA) procedures have demonstrated certain limitations in the South African manufacturing industry. The aim of this paper is to propose new characterisation and normalisation factors for classified mined ...Read more
Author:Mhlanga, N; Ray, Suprakas SDate:2014This study reports the synthesis, characterisation and thermal properties of polylactide (PLA)/titanium dioxide nanoparticles (TiO(sub2) NPs) composites using the sol–gel method. The percentage weight of TiO(sub2) NP sol was varied from 3, ...Read more
Author:Mathomu, LM; Myer, MS; Kenyon, CPDate:01 Sep 2010Efforts are underway to produce transgenic pigs as source of organ transplants, transgenic fish for food, and transgenic livestock that are resistant to many animal diseases and can survive harsh environmental conditions. Nguni breed of cattle ...Read more
Author:Miyambo, M; Pandelani, Thanyani ADate:Oct 2012The Mechanical Deflection Sensor (MDS) is used to measure the simulated positive
dynamic deformation of a blast plate, when it
is impacted by a spring powered Lower Limb
Impactor (LLI) plate.Read more
Author:Snedden, Glen C; Roos, TH; Dunn, Dwain I; Gregory-Smith, DDate:Sep 2007This paper describes the results, to date, of collaboration between the CSIR (South Africa) and Durham University (UK). Furthermore the paper intends to demonstrate the capability and suitability of a refurbished 1½ stage turbine test rig to ...Read more
Author:Mafusire, C; Forbes, A; Snedden, Glen C; Michaelis, MMDate:2007A heated horizontal spinning pipe causes gases inside it to assume dynamics resulting in a graded index lens – a spinning pipe gas lens (SPGL). A CFD model is presented which shows that gas exchanges of the SPGL with the surroundings resulting ...Read more
Author:Schneider, F; Draheim, J; Brunne, J; Waibel, P; Wallrabe, UDate:Sep 2009In this paper the auhtors compare the performance and optical quality of two types of adaptive fluidic silicone-membrane lenses. The membranes feature either a homogeneous thickness, or they are shaped resulting in an inhomogeneous cross-section. ...Read more
Author:Schneider, F; Draheim, J; Brunne, J; Waibel, P; Wallrabe, UDate:Mar 2010The authors compare the performance and optical quality of two types of adaptive fluidic silicone-membrane lenses. The membranes feature either a homogeneous thickness, or they are shaped resulting in an inhomogeneous cross-section. The lens ...Read more
Author:Madende, M; Kemp, G; Stoychev, Stoyan H; Osthoff, GDate:Oct 2018Copyright: 2018 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website.Read more
Author:Oboirien, BO; Engelbrecht, AD; North, Brian C; Du Cann, VM; Falcon, RDate:Mar 2009There is currently a gap in the understanding of the morphological transformations experienced by high ash and intertinite-rich coals undergoing conversion to char during atmospheric gasification. In this study, work has been carried to ...Read more