Author:Botha, Adèle; Traxler, J; Ford, MDate:Oct 2008Designing, implementing and evaluating educational technology for a developmental project in mobile learning is largely unchartered territory. This paper reflects on the process, the role-players, their contributions and the framework that ...Read more
Author:Ford, M; Botha, AdèleDate:Mar 2009Historically Africa and it's people have faced many practical problems in their race towards digital inclusion and economic progress, such as a severe lack of infrastructure and resources. However, the advent of the cell phone, is set to ...Read more
Author:Fabricius, C; Scholes, RJ; Cundill, GDate:2006The Southern African Millennium Ecosystem Assessment (SAfMA, http://www.maweb.org) was undertaken at a variety of spatial scales, from the regional (with sub-Saharan Africa as the assessment area) to the local (at the scale of a village, ...Read more
Author:Modungwa, D; Bolele, K; Tlale, NS; Kumile, CM; Shaik, ADate:Dec 2008In this paper, the requirements for a mechanical manipulator for achieving reconditioning of mould and die tools are determined. Reconditioning of mould and die tools involves the following manufacturing processes; identification of defects, ...Read more
Author:Bolele, K; Modungwa, D; Tlale, NS; Kumile, CMDate:Dec 2008Two novel hybrib manipulators that can be used for reconditioning of mould and die tools are presented in this paper. These designs have been developed using the knowledge of the different manufacturing process and defects that occur in mould ...Read more
Author:Ogunleye, SDate:Dec 2009In this paper, the authors develop a concept for mobile programming. Mobile tools for Hetbeans (MobiNET) design would support the development of mobile applications for various mobile phones. The authors evaluate Netbeans as a development ...Read more
Author:Schulze, C; Flamm, D; Dudley, Angela L; Forbes, A; Duparr'e, MDate:Feb 2013We present a novel technique to measure the orbital angular momentum (OAM) density of light. The technique is based on modal decomposition, enabling the complete reconstruction of optical fields, including the reconstruction of the beams ...Read more
Author:Schulze, C; Ngcobo, Sandile; Duparre, M; Forbes, ADate:Dec 2012The modal decomposition of an arbitrary optical field may be done without regard to the spatial scale of the chosen basis functions, but this generally leads to a large number of modes in the expansion. While this may be considered as ...Read more
Author:Rens, GB; Meyer, TA; Lakemeyer, GDate:Jan 2015The authors present a decidable logic in which queries can be posed about (i) the degree of belief in a propositional sentence after an arbitrary finite number of actions and observations and (ii) the utility of a finite sequence of actions ...Read more
Author:Zhang, Y; Roux, FSDate:Jun 2014We investigate the effect of the down-conversion angle between the signal and idler beams in spontaneous parametric down-conversion on the bandwidth of the modal spectrum (Schmidt number) of the down-converted quantum state. For this purpose, ...Read more
Author:Flamm, D; Naidoo, Darryl; Schulze, C; Forbes, A; Duparré, MDate:Jul 2012A procedure for the real-time analysis of laser modes using a phase-only spatial light modulator is outlined. The procedure involves encoding into digital holograms by complex amplitude modulation a set of orthonormal basis functions into ...Read more
Author:Loveday, Philip W; Long, Craig S; Ramatlo, Dineo AMDate:Mar 2018Accurate computation of dispersion characteristics of guided waves in rails is important during the development of inspection and monitoring systems. Wavenumber versus frequency curves computed by the semi-analytical finite element method ...Read more
Author:Litvin, IA; Stepanov, BIDate:Aug 2006In this work the mode structure of a resonator with Bessel – Gauss transverse mode distribution was investigated. Under some configuration of like resonators, the authors have found that diffraction losses in high mode number are less when ...Read more
Author:Gee, EDate:Apr 1983By quantifying the non-symmetrical distribution of fibre diameter and length of different wool lots, it has been shown that the measures of the mode, skewness and kurtosis can play a significant role in the spinning performance of yarns and ...Read more
Author:Coetzee, L; Viviers, I; Barnard, EDate:Dec 2009Multi-modal human computer interfaces are becoming increasingly widespread, building on more capable and affordable devices along with advances in helper applications utilising advanced pattern recognition. These interfaces promise to improve ...Read more
Author:Venter, Jacobus P; Van Ellewee, MinrieDate:Sep 2017It is argued that the definition of the required operational capabilities in the short and long term is an essential element of command. Defence Capability Management can be a cumbersome, long and very resource intensive activity. Given the ...Read more
Author:Oosthuizen, Rudolph; Venter, Jacobus P; Serfontein, Christian JDate:Nov 2018Systems Engineering for complex and sociotechnical systems is becoming increasingly difficult due to growing complexity in the problem and solution space. This resulted to the development of Model Based Systems Engineering (MBSE), which applies ...Read more
Author:Greben, JM; Elphinstone, E; Holloway, Jennifer PDate:Jun 2006A novel model has been developed to predict elections on the basis of early results. The electorate is clustered according to their behaviour in previous elections. Early results in the new elections can then be translated into voter behaviour ...Read more
Author:Jansen van Vuuren, Joey; Leenen, LouiseDate:Mar 2018Cyber Defence is a core driver in the attainment of national security for any country. Perceived Cyberpower can be determined by the analysis of the elements of cyberspace as part of national security. In this paper the Perceived Cyberpower ...Read more
Author:Leenen, L; Modise, M; Le Roux, WHDate:Mar 2009This paper is part of a long term research project conducted by the Council for Scientific and Industrial Research (CSIR) in South Africa. The objective of the project is to construct a model for the planning and execution of Peace Support ...Read more