Author:Tönsing, KM; Van Niekerk, K; Schlunz, Georg I; Wilken, IlanaDate:Jun 2018BACKGROUND: In South Africa, many persons in need of augmentative and alternative communication (AAC) come from multilingual backgrounds. There is as yet a limited evidence base (locally and internationally) for the provision of AAC services ...Read more
Author:Kganyago, KR; Ngoepe, PE; Catlow, CRADate:Mar 2003Energetics of the anode system LiC6 compared to metallic lithium is calculated within the framework of local-density functional theory (LDA-DFT) techniques. Our results suggest that the energy of anode intercalation results in a small change ...Read more
Author:Mashapa, MG; Chetty, N; Ray, Suprakas SDate:Sep 2012A systematic study of vacancies in single-walled carbon nanotubes and boron nitride nanotubes was carried out. First principles calculations within the framework of density functional theory using the CASTEP code are used to optimize fully ...Read more
Author:Anderson, PML; Hoffman, MT; O'Farrell, Patrick JDate:Aug 2010This study set out to generate estimates of the standing perennial biomass for six different vegetation types, and associated upland and lowland habitats, across the altitudinal gradient presented by the Kamiesberg mountain range in the ...Read more
Author:Bouvet, A; Mermoz, S; Le Toan, T; Villard, L; Mathieu, Renaud SA; Naidoo, Laven; Asner, GPDate:Mar 2018Savannahs and woodlands are among the most important biomes in Africa: they cover half of sub-Saharan Africa, provide vital ecosystem services to the rural communities, and play a major part in the carbon budget. Despite their importance and ...Read more
Author:Van Wyngaardt, WM; Simpson, BRSDate:Oct 2006Four radionuclides with electron-capture-based decay schemes have been directly measured by a liquid scintillation coincidence extrapolation technique. The advantage of using (LS) counting in the 4p channel is that self-absorption does not ...Read more
Author:Ndiege, JRA; Herselman, Martha E; Flowerday, SVDate:Oct 2014Many small and medium enterprises (SMEs) in developing countries continue to be challenged by their information technology (IT) adoption process, which is often characterized by a number of deficiencies. The purpose of this study was to examine ...Read more
Author:Murray, K; Roux, DJ; Nel, JL; Driver, A; Freimund, WDate:Mar 2011The ability of an organisation to recognise the value of new external information, acquire it, assimilate it, transform, and exploit it, namely its absorptive capacity (AC), has been much researched in the context of commercial organisations ...Read more
Author:Ndiege, JR; Herselman, Martha E; Flowerday, SVDate:Jun 2012The purpose of this article is thus to provide a review of the literature on this subject with the aim of finding out how both large and small enterprises stand to benefit from AC. We intend to affirm that, by successfully carrying out a ...Read more
Author:Adedeji, KB; Ponnle, AA; Abe, BT; Jimoh, AA; Abu-Mahfouz, Adnan MI; Hamam, YDate:Jun 2018Metallic pipelines have attendant problems of alternating current (AC) assisted corrosion when installed in the utility corridor with high voltage transmission lines. Research studies in the past and recent years have shown that this corrosion ...Read more
Author:Du Plessis, Louw; Ulloa-Calderon, A; Harvey, JT; Coetzee, NFDate:Oct 2017This paper provides a brief description of the technological developments involved in the development and use of the Heavy Vehicle Simulator (HVS) accelerated pavement testing equipment. This covers the period from concept in the late 1960’s, ...Read more
Author:Schulze, C; Roux, FS; Dudley, Angela L; Rop, R; Duparre, M; Forbes, ADate:2015We introduce a class of light field that angularly accelerates during propagation. We show that the acceleration (deceleration) may be controlled by adjustment of a single parameter, and tuned continuously, down to no acceleration at all. As ...Read more
Author:Schulze, C; Roux, FS; Dudley, Angela L; Rop, R; Duparre, M; Forbes, ADate:Apr 2015We introduce a class of light field that angularly accelerates during propagation. We show that the acceleration (deceleration) may be controlled by adjustment of a single parameter, and tuned continuously, down to no acceleration at all. As ...Read more
Author:Malan, AG; Oxtoby, Oliver FDate:Sep 2012In this paper we propose a fast, parallel 3D, fully-coupled partitioned hybridunstructured finite volume fluid–structure-interaction (FSI) scheme. Spatial discretisation is effected via a vertex-centered finite volume method, where a hybrid ...Read more
Author:Henrico, S; Coetzee, S; Cooper, Antony K; Rautenbach, VDate:Oct 2020Geospatial information and technologies are widely used in South Africa, initially mostly with proprietary software but today, mature, open source alternatives such as QGIS are available. We wanted to find out if and why South African users ...Read more
Author:Dlodlo, NDate:May 2009This paper describes the impact of socio-economic factors on girls and women’s access to Information and Communication Technology (ICT) education and training in a rural South African environment and recommends strategies for improved access ...Read more