Author:Mnisi, MI; Bokoro, P; Roro, Kittessa T; Basappa Ayanna, Manjunath; Pratt, Lawrence EDate:Nov 2019Power quality analysis (PQA) in power systems has become important to consider since there has been an increase in distributed energy resources installed on the existing grid, particularly in the area of renewable energy generation. South ...Read more
Author:Alimi, OA; Ouahada, K; Abu-Mahfouz, Adnan MI; Rimer, SDate:Jan 2021Currently, ensuring that power systems operate efficiently in stable and secure conditions has become a key challenge worldwide. Various unwanted events including injections and faults, especially within the generation and transmission domains ...Read more
Author:Rampokanyo, Mpeli J; Ijumba-Kamera, Ketrine PDate:Jun 2019Erosion of power system inertial energy due to high penetration levels of renewable energy (RE) sources in a power system is a current teething issue with most system operators across the globe. The main issue being displacement of synchronous ...Read more
Author:Bischof-Niemz, T; Calitz, Joanne R; Wright, Jarrad GDate:Jun 2016Reserve provision from standalone solar photovoltaic (PV) power plants has to date not been adopted in practice but has been conceptualised by a number of authors for variable renewable energy (RE) power plants like solar PV and wind. The ...Read more
Author:Litvin, IA; Dudley, Angela L; Forbes, ADate:Aug 2011The authors study theoretically the orbital angular momentum (OAM) density in arbitrary scalar optical fields, and outline a simple approach using only a spatial light modulator to measure this density. They demonstrate the theory in the ...Read more
Author:Swart, IDate:Jul 2012A common aim of malware creators is to have the ability to spread their software undetected through various networks until the required goal is completed. In response to this, anti-virus vendors have implemented various strategies to detect ...Read more
Author:Funke, Nicola S; Riera, Sebastian; Yamamura, HiroshiDate:Dec 2017This presentation focuses on qualitative and quantitative data analysis regarding a research project undertaken by the CSIR on effective agricultural water use in the Maruleng Municipal Area in Mpumalang, South Africa.Read more
Author:Sefara, Tshephisho J; Mokgonyane, TBDate:Mar 2021This paper proposes the implementation of WordNets for five South African languages, namely, Sepedi, Setswana, Tshivenda, isiZulu and isiXhosa to be added to open multilingual WordNets (OMW) on natural language toolkit (NLTK). The African ...Read more
Author:Ramotsoela, DT; Hancke, GP; Abu-Mahfouz, Adnan MIDate:Jan 2023The move towards renewable energy and technological advancements in the generation, distribution and transmission of electricity have increased the popularity of microgrids. The popularity of these decentralised applications has coincided ...Read more
Author:Moodley, K; Meyer, T; Sattler, UDate:Aug 2014Abstract. The preferential approach to nonmonotonic reasoning was consolidated
in depth by Krause, Lehmann and Magidor (KLM) for propositional
logic in the early 90's. In recent years, there have been e orts to
extend their framework to ...Read more
Author:Pandelani, Thanyani A; Reinecke, John D; Philippens, M; Dosquet, F; Beetge, FDate:Sep 2010This study presents the initial results pertaining to a practical investigation into the robustness of the newly developed Military Extremity (MiL-Lx) lower leg, with respect to repeatability and reproducibility under typical mine-protected ...Read more
Author:Shabangu, T; Mbecke, ZPDate:Jun 2008This handbook aims to improve knowledge of international and domestic legal framework regarding the treatment of refugee children and unaccompanied minor refugee children in South Africa. It is the first of many handbooks that the Refugee ...Read more
Author:Hussien, HM; Katzis, K; Mfupe, Luzango P; Bekele, ETDate:Aug 2019The opening of Television White Spaces for cognitive access is one of the first tangible steps towards solving the spectrum scarcity as well as rural connectivity problems. Because this part of the spectrum band offers better bandwidth, good ...Read more
Author:Gerber, A; Van Der Merwe, A; Alberts, RDate:Nov 2007Rapid development methodologies are popular approaches for the development of modern software systems. The goals of these methodologies are the inclusion of the client into the analysis, design and implementation activities, as well as the ...Read more
Author:Kleyn, E; Bergh, A; Botha, PDate:Apr 2009Naturally occurring road building materials, suitable for the higher-quality upper strata of road pavements (base and subbase layers), are systematically being depleted, resulting in the haulage of alternative material over increasing distances ...Read more
Author:Van Den Berg, M; Aucamp, FNDate:May 2007MobilED is an Open source project that aims to develop pedagogically appropriate mobile technology services to enhance formal and informal learning and teaching environments. A first phase of the platform and services were developed and piloted ...Read more
Author:Aharonson, V; Schlesinger, I; McDonald, Andre M; Dubowsky, S; Korczyn, ADDate:Feb 2018We present PAMM II, the Personal Aid for Mobility and Monitoring II, an instrumented walker for Parkinson’s Disease (PD) patients’ gait monitoring. The objective of the walker is to aid in the diagnosis and monitoring of PD progression as ...Read more
Author:Klarman, SDate:Dec 2013We develop a practical approach to querying temporal data stored in temporal SQL:2011 databases through the semantic layer of OWL 2 QL ontologies. An interval-based temporal query language (TQL), which we propose for this task, is defined via ...Read more
Author:Goncalves, DDate:Aug 2010South Africa, and indeed internationally, has been experiencing a shortage of systems engineers. On the other hand we seem to have only introductory systems engineering courses at local universities. Systems engineers have developed by means ...Read more