Author:Barnard, E; Schalkwyk, J; Van Heerden, C; Moreno, PJDate:Sep 2010In light of the serious problems with both illiteracy and information access in the developing world, there is a widespread belief that speech technology can play a significant role in improving the quality of life of developing-world citizens. ...Read more
Author:Sharma Grover, AS; Calteaux, Karen V; Barnard, E; Van Huyssteen, GDate:Mar 2012Research using voice-based services as a technology platform for providing information access and services within developing world regions has shown much promise. The results for design and deployment of such voice-based services have varied ...Read more
Author:Van Huyssteen, G; Sharma Grover, A; Calteaux, Karen VDate:Oct 2012Multilingual emerging markets hold many opportunities for the application of spoken language technologies, such as automatic speech recognition (ASR) or test-to-speech (TTS) technologies in interactive voice response (IVR) systems. However, ...Read more
Author:Greben, HA; Baloyi, LJ; Eisberg, R; Joubert, LM; Botha, A; Venter, SNDate:May 2006Acid Mine Drainage (AMD) needs to be treated, before it is recharged in rivers and dams. The biological treatment of AMD can be applied using degradation products of cellulose, for example Volatile Fatty Acids as carbon sources. The aim of ...Read more
Author:Kganyago, KR; Ngoepe, PE; Catlow, CRADate:01 Mar 2003A systematic computational investigation of the new Chevrel phase, MgxMo6S8 for 0<=x<=2, a candidate for a high-energy density cathode in prototype rechargeable magnesium (Mg) battery systems is performed. A study within the framework of both ...Read more
Author:Adekunle, AS; Ozoemena, KIDate:Dec 2010The electron transfer and electrocatalytic proiperties of iron oxide nanoparticle (g-Fe2O3) catalysts supported on MWCNTs are described. The MWCNT-Fe2O3 and its electrodes were successfully characterised with FESEM, HRTEM, XRD, EDX, cyclic ...Read more
Author:Cooper, Antony K; Coetzee, S; Kourie, DGDate:2018The terms user-generated content, volunteered geographical information, crowdsourcing, citizen science and neogeography are elucidated. The purpose is to expose the range of meanings associated with these terms, and to promote consensus as ...Read more
Author:Sephton, Bereneice C; Dudley, Angela L; Forbes, ADate:Oct 2016Q-plates are commonly used for uncomplicated generation of polarization controlled vortex beams. Here we show experimentally that the output is not a pure vortex but rather a Hypergeometric-Gaussian mode. Results are in good agreement with theory.Read more
Author:Roux, FSDate:2009The report present the presentation on vortices in Gaussian beams. The presentation was on the polynomial Gaussian beam, Calculation techniques and general properties of polynomial Gaussian beam, Single vortex beams and Gaussian beams with ...Read more
Author:Barnard, E; Wissing, DDate:2008For the development of Human Language Technologies such as automatic speech recognition systems or text-to-speech systems, exact acoustic and phonological information of the language in question is essential. In the case of Southern Sotho, ...Read more
Author:Purdon, Kyla; Dickens, John S; De Ronde, Willis; Ramruthan, Kshir; Crafford, GerrieDate:Nov 2023This paper describes a mobile ground-based robotic platform named Voyager which was developed to support robotics research and replace the old mobile robotic platform, the Pioneer. A comparative analysis was done with three mobile robot: ...Read more
Author:Purdon, Kyla; Dickens, John S; De Ronde, Willis; Ramruthan, Kshir; Crafford, GerrieDate:Nov 2023This paper describes a mobile ground-based robotic platform named Voyager which was developed to support robotics research and replace the old mobile robotic platform, the Pioneer. A comparative analysis was done with three mobile robot: ...Read more
Author:Jonas, Z; Rouget, M; Reyers, B; Mohamed, B; Rutherford, MC; Mucina, L; Powrie, LWDate:2006Humans have transformed almost half of the world's land surface area into agriculture and urban systems. The most severe biodiversity loss occurs when a natural ecosystem is converted to an artificial system. This does not only affect ecosystems ...Read more
Author:John, J; Binedell, M; Matooane, M; Oosthuizen, RDate:28 Feb 2006South Africa hosts a number of different communities, both in terms of wealth and access to environmental and social services. Poor communities located in close proximity to industrial developments are of particular concern to the risk assessor ...Read more
Author:John, J; Das, SonaliDate:Mar 2012In this study, the relationship between certain household traits and specific environmental health outcome variables was explored in a low-income community from a peri-urban settlement in eMbalenhle, South Africa, with the aim of locating ...Read more
Author:Mpalane, Kealeboga; Gasela, N; Esiefarienrhe, BM; Tsague, HDDate:Sep 2016A wide variety of cryptographic embedded devices including smartcards, ASICs and FPGAs must be secure against breaking in. However, these devices are vulnerable to side channel attacks. A side channel attack uses physical attributes such as ...Read more
Author:Van Niekerk, Lara; Lamberth, SJ; James, NC; Taljaard, Susan; Adams, JB; Theron, AK; Krug, MDate:Aug 2022This review evaluates the vulnerability of South African estuaries to Climate Change in a data-limited environment. The regional-scale assessment is based on physical characteristics and predicted/measured changes in the abiotic drivers and ...Read more
Author:Viljoen, NM; Joubert, JWDate:Nov 2016Using complex network theory to describe the relational geography of maritime networks has provided great insights regarding their hierarchy and evolution over the past two decades. Unlike applications in other transport fields, notably air ...Read more
Author:Matooane, M; John, J; Oosthuizen, RDate:30 Aug 2010This presentation does a vulnerability assessment regarding air pollution. It investigates the topic by providing a scope of the issue, discussing the approach that was used, assessing vulnerability and communicating outcomes, and looking at ...Read more
Author:John, J; Matooane, M; Oosthuizen, R; Wright, CDate:Nov 2008The Environmental Health Research Group has, amongst other interests, a specific focus on understanding and addressing vulnerability of communities to environmental pollution. No appropriate tools to determine vulnerability to environmental ...Read more