Author:Van Niekerk, DR; Barnard, EDate:Nov 2008The 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 consistently place ...Read more
Author:Kleynhans, N; Molapo, R; De Wet, FebeDate:Nov 2012The 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 dictionary, (2) ...Read more
Author:Kleynhans, N; Molapo, R; De Wet, FebeDate:Nov 2012The 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 dictionary, (2) ...Read more
Author:Modipa, T; Davel, M; De Wet, FebeDate:Oct 2010Automatic 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 modelling of Sepedi ...Read more
Author:Brink, S; Dorfling, C; Aldrich, CDate:May 2016Relatively 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 industry, totalling 89 ...Read more
Author:von Bergmann, HM; Forbes, A; Roberts, T; Botha, LRDate:Aug 2008Results 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 in a deterioration ...Read more
Author:Van Reenen, Coralie A; Du Plessis, ChrisnaDate:Aug 2021This research set out to broaden the pool of evidence regarding the acoustic conditions at schools in South Africa. A review of local and international literature, standards and design guidelines shows that the ideal classroom acoustic ...Read more
Author:Du Plessis, CDate:Sep 2005Sustainable 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 between the definitions, ...Read more
Author:Rosman, Benjamin S; Ramamoorthy, SDate:Apr 2015An 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 tasks, it can uncover ...Read more
Author:Tucker, J; Ludi, E; Mason, N; Cullen, B; Lema, Z; Duncan, A; Musvoto, Constansia D; Habtu, SDate:May 2013Stakeholder platforms are popular among agricultural innovation projects. However, there has been limited critical or comparative research on these platforms, exploring what outcomes can be expected and what makes platforms effective or ...Read more
Author:Wepener, V; Van Vuren, JHJ; Chatiza, FP; Mbizi, Z; Slabbert, L; Masola, BDate:2005This paper presents results from a field study in the Rietvlei Wetland system, Gauteng, South Africa using the freshwater mollusk and freshwater fish as bioindicator organisms. Active biomonitoring (ABM) exposures were conducted where organisms ...Read more
Author:Kesavan Pillai, Sreejarani; Sivakumar, D; Ray, SS; Obianom, P; Eggers, SK; Mhlabeni, TDate:Nov 2020In this study, the ability of an active film containing volatile bioactives in post-harvest disease control and preservation of quality in avocados is explored as a non-traditional treatment method. Antimicrobial transparent flexible trilayer ...Read more
Author:Govender, Nicolin; Claassens, J; Nicolls, F; Warrell, JDate:Jan 2013For mobile robots to perform certain tasks in human environments, fast and accurate object classification is essential. Actively exploring objects by changing viewpoints promises an increase in the accuracy of object classification. This paper ...Read more
Author:Auret, EWDate:1986Activities of the National Programmes for Ecosystem and Aquaculture Research of the CSIR Foundation for Research Development are reviewed, within the programmes on Inland Water Ecosystems, Terrestrial Ecosystems, Nature Conservation Research, ...Read more
Author:Simpson, B; van Wyngaardt, FDate:27 Feb 2006Activity measurements undertaken at the CSIR's National Metrology Laboratory (NML) on a solution of the pure beta-emitting radionuclide phosphorus-32, which formed part of an international key comparison, are described. Since exploratory ...Read more
Author:Simpson, BRS; Van Wyngaardt, WMDate:2006Authors describe the activity measurements undertaken at the CSIR’s National Metrology Laboratory on a solution of the pure beta emitting Radio nuclide phosphorus-32 that formed part of an international key comparison. Depending on the ...Read more
Author:Simpson, BRS; Van Wyngaardt, WMDate:Oct 2006The absolute activities of the pure beta-emitters Sr-89 and Y-90 have been determined by a direct method, namely the triple-to-double coincidence ratio (TDCR) efficiency calculation technique. This undertaking has extended further the number ...Read more
Author:Afolayan, AJ; Wintola, OA; Fouché, GerdaDate:2016The acute and subacute toxicity profile of the aerial extract of Monsonia angustifolia in Wistar rats was evaluated. The Organization for Economic Cooperation and Development (OECD) 420 guideline was adopted in the acute toxicity testing with ...Read more
Author:Lukhele, LP; Mamba, BB; Musee, N; Wepener, VDate:Jan 2015This study investigated the toxicity of double walled carbon nanotubes (DWCNTs) to three aquatic organisms, namely, Pseudokirchneriella subcapitata, Daphnia pulex, and Poecilia reticulata under the influence of exposuremedia properties ...Read more