Author:Van der Merwe, A; Van Dyk, FE; Van Vuuren, JHDate:Dec 2011Recent technological advances have had a major impact on the management of traditional wineries, giving rise to the prospect of computerised decision support with respect to a range of complex harvesting and wine making decisions which have ...Read more
Author:Van Der Merwe, A; Van Dyk, E; Van Vuuren, JDate:Sep 2007The goal of the study is to lend decision support to management a a wine cellar in three areas of expertise, with Wamakersvallei Winery serving as a special case study. This decision support system is to be delivered in the form of Excel ...Read more
Author:Meyer, IA; Marais, Mario ADate:Oct 2014A number of factors complicate the ability to deliver sustainably on development interventions. Multiple role players are involved, the performance of implementation agencies are measured over the short- to medium term and donors do not always ...Read more
Author:Lanz, EJ; Van Dyk, FE; Van Vuuren, JHDate:Sep 2011The mission of the Global Foodbanking Network is to work together to alleviate world hunger by developing national networks of foodbanks and strengthening foodbanking around the world. In the South African context, the goal of the foodbank ...Read more
Author:Turpin, SM; Marais, Mario ADate:2004This paper compares a number of theoretical models of decision-making with the way in which senior managers make decisions in practice. Six prominent decision-makers were interviewed about their own decision-making style as well as their use ...Read more
Author:Uys, H; Biercuk, MJ; VanDevender, AP; Ospelkaus, C; Meiser, D; Ozeri, R; Bollinger, JJDate:Nov 2010The authors present theoretical and experimental studies of the decoherence of hyperfine ground-state superpositions due to elastic Rayleigh scattering of light off resonant with higher lying excited states. They demonstrate that under ...Read more
Author:Uys, H; Biercuk, M; Van Devender, AP; Ospelkaus, C; Meiser, D; Ozeri, R; Bollinger, JJDate:Sep 2010This paper investigates the decoherence of superpositions of hyperfine states of 9Be+ ions due to spontaneous scattering of off-resonant light. It was found that, contrary to conventional wisdom, elastic Raleigh scattering can have major ...Read more
Author:Roux, FSDate:Jun 2012This report present the presentation on deconstructing quantum decoherence in atmospheric turbulence. The focus was on the classical and quantum scintillation, time vs propagation distance, current paradigm: Paterson model, infinitesimal ...Read more
Author:Ndlovu, GF; Asante, JKO; Roos, WD; Hillie, KTDate:Jul 2011An Ultra-high Vacuum Variable Temperature Scanning Tunnelling Microscope was used to study the growth mechanism of Antimony on vicinal Cu polycrystalline samples. The STM data after deposition of 0.3 ML Sb at 300°C showed localization of Sb ...Read more
Author:Cronje, JDate:Nov 2015The work in this paper address the problem of removing non-uniform motion blur from a single image. The motion vector for an image patch is estimated by using a convolutional neural network (CNN). All the predicted motion vectors are combined ...Read more
Author:Napier, JAL; Malan, DF; Sellers, E; Daehnke, A; Hildyard, MW; Dede, T; Shou, K-JDate:Dec 1998The investigation of the behaviour of the fracture zone surrounding deep level gold mine stopes is detailed in three main sections of this report. Section 2 outlines the ongoing study of fundamental fracture process and their numerical ...Read more
Author:Van Schoor, Michael; Nkosi, Nomqhele Z; Magweregwede, Fleckson; Kgarume, Thabang EDate:Aug 2022This book provides the basic know-how and guidance to effectively exploit non-destructive geophysical technologies and apply them in the underground mining environment to optimise mineral extraction and to contribute to safer mining. The ...Read more
Author:Davel, MH; Barnard, EDate:Nov 2004The authors define a novel g-to-p prediction algorithm that utilises the concept of a 'default phoneme': a grapheme which is realised as a specific phoneme significantly more often than as any other phoneme. They found that this approach ...Read more
Author:Casini, G; Meyer, T; Varzinczak, IDate:Oct 2018In this paper we present what we believe to be the first systematic approach for extending the framework for defeasible entailment first presented by Kraus, Lehmann, and Magidor—the so-called KLM approach. Drawing on the properties for KLM, ...Read more
Author:Casini, G; Straccia, UDate:2013Defeasible inheritance networks are a non-monotonic framework that deals with hierarchical knowledge. On the other hand, rational closure is acknowledged as a landmark of the preferential approach to non-monotonic reasoning. We will combine ...Read more
Author:Britz, K; Varzinczak, IDate:Jan 2013Nonmonotonic logics are usually characterized by the presence of some notion of `conditional' that fails monotonicity. Research on nonmonotonic logics is therefore largely concerned with the defeasibility of argument forms and the associated ...Read more
Author:Britz, K; Varzinczak, IDate:Jun 2012Historically, approaches to defeasible reasoning have been concerned mostly with one aspect of defeasibility, viz. that of arguments, in which the focus is on normality of the premise. In this paper we are interested in another aspect of ...Read more
Author:Moodley, K; Meyer, T; Varzinczak, IJDate:Oct 2012Classical reasoning for logic-based KR (Knowledge Representation) systems is in general, monotonic. That is, there is an assumption in these systems that there is complete information about a domain. This means that they generally cannot deal ...Read more
Author:Mashapa, MG; Chetty, N; Ray, Suprakas SDate:May 2012The effect of defect complexes on the stability, structural and electronic properties of single-walled carbon nanotubes and boron nitride nanotubes is investigated using the ab initio pseudopotential density functional method implemented in ...Read more