Author:Botai, OJ; Sivakumar, V; Combrinck, CL; Rautenbach, CJDDate:2009In this study, data from the Southern Hemisphere ADditional OZonesondes (SHADOZ) are used to compute the spatially averaged water vapour (WVg) over low and mid-tropical Africa. Based on the SHADOZ stations, reanalysis data from the National ...Read more
Author:Musehane, Ndivhuwo M; Oxtoby, Oliver F; Reddy, DBDate:Oct 2016In this work, droplet-droplet interaction is modelled using a multiphase flow computational fluid dynamics approach coupled with a reduced order surface thin-film model. An existing multiphase flow model based on a multiple marker volume of ...Read more
Author:Musehane, Ndivhuwo M; Oxtoby, Oliver F; Reddy, BDDate:Nov 2018In this work, droplet–droplet interaction is modelled using a multi-scale approach which couples multiphase flow simulation using a volume of fluid method to a surface thin film model operating on the sub-grid scale. The volume of fluid model ...Read more
Author:Holloway, MDate:Oct 2012In this presentation the author presents the engineering design process from customer requirement to technology demonstrator hardware and the impact of the CSIR's work in the defence and safety area.Read more
Author:Stolper, RDate:Feb 2006This poster highlights the design and development of a camera which combines ultraviolet, infrared and visual imaging techniques for advanced diagnostic inspections, and also shows some evaluations carried out to demonstrate the operability ...Read more
Author:Swanepoel, Derick; Van den Bergh, FransDate:Mar 2017Earth observation data are typically compressed using general-purpose single-threaded compression algorithms that operate at a fraction of the bandwidth of modern storage and processing systems. We present evidence that recently developed ...Read more
Author:Frieslaar, Ibraheem; Irwin, BDate:Oct 2016This research investigates the use of a multi-threaded framework as a software countermeasure mechanism to prevent attacks on the verifypin process in a pin-acceptance program. The implementation comprises of using various mathematical ...Read more
Author:Salmon, BP; Kleynhans, W; Olivier, JC; Schwegmann, CP; Olding, WCDate:Jul 2015In this paper the authors present a 2-tier higher order Conditional Random Field which is used for land cover classification. The Conditional Random Field is based on probabilistic messages being passed along a graph to compute efficiently ...Read more
Author:Olakanmi, EO; Nyadongo, ST; Malikongwa, K; Lawal, SA; Botes, Annelize; Pityana, Sisa LDate:Jan 2019Inappropriate choice of processing and materials parameters when re-manufacturing industrial equipment, via laser cladding (LC) technique, has adverse implications for attaining durability of equipment in terms of functional performance, ...Read more
Author:Rousseau, AL; Matlaba, P; Parkinson, CJDate:Jun 2007The novel use of zinc chloride to catalyse the one-pot, three component synthesis of imidazo (1,2-a) pyridines for a range of substrates using either conventional heating or microwave radiation is described. This methodology afforded a number ...Read more
Author:Ryan-Keogh, Thomas J; Thomalla, Sandy J; Scheel Monteiro, Pedro M; Tagliabue, ADate:Feb 2023Southern Ocean primary productivity is principally controlled by adjustments in light and iron limitation, but the spatial and temporal determinants of iron availability, accessibility, and demand are poorly constrained, which hinders accurate ...Read more
Author:Lunga, D; Ersoy, ODate:Jun 2013Multidimensional embedding is a technique useful for characterizing spectral signature relations in hyperspectral images. However, such images consist of disjoint similar spectral classes that are spatially sensitive, thus presenting challenges ...Read more
Author:Al-Thabaiti, SA; Ray, SS; Basahel, SN; Mokhtar, MDate:Mar 2015The processing and characterization of multifunctional nanobiocomposite of biodegradable poly[(butylene succinate)-co-adipate] (PBSA) and organically modified synthetic fluorine mica (OSFM) are reported. The nanobiocomposite of PBSA with OSFM ...Read more
Author:Maina, JWDate:Jan 2006When pavement structures like roads and runways are under simultaneous actions of vehicular vertical and horizontal wheel loading, analysis is normally performed considering these loads as uniformly distributed vertical and horizontal loads, ...Read more
Author:Mkwizu, TS; Mathe, Mahlanyane K; Cukrowskia, IDate:Jun 2013Electrochemical, surface and bulk compositional properties of multilayered nanoclusters of Pt and Au, electrochemically deposited on glassy carbon under conditions involving sequential surface–limited redox–replacement reactions (performed ...Read more
Author:Feld, M; Barnard, E; Van Heerden, C; Muller, CDate:Dec 2009Multilinguality represents an area of significant opportunities for automatic speech-processing systems: whereas multilingual societies are commonplace, the majority of speechprocessing systems are developed with a single language in mind. ...Read more
Author:Tönsing, KM; Van Niekerk, K; Schlunz, Georg I; Wilken, IlanaDate:Apr 2019Background: Augmentative and alternative communication (AAC) can assist persons with complex communication needs to communicate competently with a variety of communication partners in a variety of contexts. However, AAC systems and intervention ...Read more