Author:Gerber, A; Sinha, S; Van der Merwe, A; Kam, MDate:May 2012Over the past two decades, strong technical convergence has been observed between computing and engineering. Computing in this context includes Computer Engineering, Computer Science, Information Systems, Information Technology and Software ...Read more
Author:Andhavarapu, EV; Loveday, Philip W; Long, Craig S; Heyns, PSDate:Jan 2010The semi-analytical finite element method (SAFE) is a popular method for analysing guided wave propagation in elastic waveguides of complex cross-section such as rails. The convergence of these models has previously been studied for linear ...Read more
Author:Olwal, TO; Masonta, Moshe TDate:Nov 2012This 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 placements of nodes ...Read more
Author:Meiklejohn, C; Goss, H; Whisken, JDate:Nov 2008This 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 Development Strategy ...Read more
Author:Chunilall, Viren; Wesley-Smith, J; Bush, TDate:Dec 2009Wood 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 layers with different ...Read more
Author:De Beer, Morris; Maree, JP; Wilsenach, J; Motaung, S; Bologo, L; Radebe, VDate:Sep 2010The 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, saline and vitiated ...Read more
Author:Martirosian, O; Davel, MDate:Nov 2008Diphthongs 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 inefficient. We evaluate ...Read more
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: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: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: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:Elphinstone, CD; Koen, Renée; Das, SonaliDate:Aug 2009The paper discusses the ad hoc statistical consulting service initiated within the CSIR that has proved successful; however, resourcing remains a major challenge. Even limited advertising of the service within the CSIR resulted in many requests ...Read more
Author:Nair, Kishor K; Pillai, MM; Lefophane, Samuel; Nair, HDDate:Sep 2020Towards the end of 2030, the global population is estimated to be around 8.5 billion. Half of the human population live today in cities and these cities continues to grow exponential growth as people migrate to urban areas in search of a ...Read more
Author:Mokoena, Refiloe; Mturi, Georges AJ; Maritz, Johan; Malherbe, Johan; O'Connell, Johannes SDate:Oct 2019Performance grade specifications for bituminous binders focus on the evaluation of bitumen properties based on the loading and environmental conditions under which the material will be subjected to in the field. The temperature of the asphalt ...Read more
Author:Burger, Chris R; Jones, TDate:Sep 2011As unmanned aircraft are introduced into civil airspace, a framework for training and licencing of dispatch and operating staff will be required. This paper assesses existing pilot training unit standards and proposes a framework within which ...Read more
Author:Hassan Mahmud, MM; Rosman, Benjamin S; Ramamoorthy, S; Kohli, PDate:Jun 2014Interactive interfaces are a common feature of many systems ranging from field robotics to video games. In most applications, these interfaces must be used by a heterogeneous set of users, with substantial variety in effectiveness with the ...Read more