Author:De Saxe, CC; Van Eeden, J; Kemp, Lana; Steenkamp, Anton J; Cowper, JDate:Jun 2023South Africa's national power utility, Eskom, is under growing pressure to increase its power generation capacity in the face of national rolling blackouts while also containing costs, increasing revenue, and reducing its environmental impact. ...Read more
Author:Botha, Johannes G; Grobler, Marthie M; Hahn, J; Eloff, MMDate:Mar 2017Data protection and management of personal information has become an integral aspect for organisations and individuals in conducting business in the modern era. It has also become a major issue for legislators, regulators and consumers worldwide ...Read more
Author:Veerasamy, NamoshaDate:Apr 2010The aim of this paper is to describe how various observations made by sections of the world population direct people into making decisions and committing acts of cyberterror. The paper will thus look at issues like the environmental factors, ...Read more
Author:Lysko, Albert A; Mofolo, MDate:Oct 2014This paper overviews a low-power beam-switched smart antenna. The antenna operates at 2.4 GHz frequency band, has low power consumption (1.5 mW), and is intended for smart world applications in communications and metering. The antenna has ...Read more
Author:Koen, W; Strauss, Hencharl J; Bollig, C; Esser, MJDDate:Sep 2010The authors present a high-power Tm:YLF slab laser double-end-pumped by two 300 W laser diode stacks. The resonator was designed such that the laser emitted at 1890 nm instead of the conventional operating wavelength of 1912 nm. At full ...Read more
Author:Schellhorn, M; Ngcobo, S; Bollig, C; Esser, MD; Preussler, DR; Nyangaza, KDate:Jun 2009The aim is to develop a high-power Tm:YLF slab laser which can be utilized to pump a Ho slab laser. A 68 W Tm:YLF slab laser was recently presented in [1] pumped from one end by a single 6-bar stack delivering ~300 W of pump power. In this ...Read more
Author:Ghoor, Ikraam S; Bezuidenhout, Petrone H; Joubert, Trudi HDate:Sep 2017This paper presents the design of a low-complexity, linear and sub-pF CMOS capacitance-frequency converter for reading out capacitive bacterial bio/sensors in an attempt to create a widespread bio/sensor readout module. The significant design ...Read more
Author:Landman, WA; DeWitt, DG; Lee, D-EDate:Sep 2011The evolution of global sea-surface temperature (SST) anomalies over several months ahead is often relatively predictable. Subsequently employing predicted SST in atmospheric general circulation models (AGCMs) can provide means of generating ...Read more
Author:Van Schoor, Michael; du Pisani, P; Vogt, DDate:28 Feb 2006The two major precious metal ore deposits of South Africa, the Bushveld Complex (platinum) and the Witwatersrand Basin (gold), exhibit remarkable lateral continuity on a regional scale. Consequently, the geometry of the respective planar ...Read more
Author:Naidoo, Kavendra; Skews, BWDate:Sep 2010Dynamic shock wave reflection generated by a rapidly pitching wedge in a steady supersonic free stream has been studied with numerical simulation previously. An experimental facility was developed for the investigation of these dynamic phenomena ...Read more
Author:Cauda, EG; Drake, P; Lee, T; Pretorius, CDate:Aug 2014Exposure to crystalline silica in the mining industry around the world is a recognized occupational hazard and miners have the highest rate of silicosis related mortality of any industry. Mining operators are limited in assessing and monitoring ...Read more
Author:Ismail, Y; Barnes, G; Mhlanga, T; Belyi, V; Forbes, ADate:Aug 2010As in the case of zero-order Bessel beam being produced by illuminating an axicon with a Gaussian beam, higher-order Bessel beams are generated by substituting the Gaussian beam with a Laguerre Gaussian (LG) beam. These beams hold similar ...Read more
Author:Reed, L; Kleynhans, TDate:Jan 2010Traditionally, rural lands are important for agricultural production, land value strongly related to productive potential of land income based and measurable. Transition towards multifunctional rural environment, income from land not only ...Read more
Author:Ampofo-Anti, NLDate:Jun 2007This paper aims to highlight the discrepancies between current built environment education and Critical Outcomes requirements of the South African National Qualifications Framework (NQF)Read more
Author:Strydom, WFDate:Oct 2012The objective of the study was, within the broader context of understanding post-consumer recycling behaviour, to provide a
baseline for domestic waste recycling behaviour in South Africa. The reasons for non-recycling were also explored. ...Read more
Author:Petersen, Chantel R; Jovanovic, NebojsaDate:Feb 2016The southern Cape region, Western Cape, South Africa, is of ecological importance with the lower Wilderness Lake systems being a designated Ramsar site. Agriculture is the main land use in the study catchment and water user with a steady ...Read more
Author:Durrheim, RJ; Riemer, KLDate:Apr 2012Gold was discovered near present-day Johannesburg in 1886. Mining-induced seismicity was first encountered in the early 1900s when extensive stopes reached depths of several hundred meters. The State appointed committees in 1908, 1915, 1924, ...Read more
Author:Sharma Grover, A; Plauche, M; Barnard, E; Kuun, CDate:Apr 2009This paper presents the work in the design of a SDS for the provision of health information to caregivers of HIV positive children. The authors specifically address the frequently debated question of input modality in speech systems; touchtone ...Read more
Author:Sharma Grover, A; Plauche, M; Barnard, EDate:Apr 2009This paper presents our work in the design of a SDS for the provision of health information to caregivers of HIV positive children. We specifically address the frequently debated question of input modality in speech systems; touchtone versus ...Read more
Author:Van den Berg, N; Mbobela, P; Pillay, P; London, G; Morris, L; Maharaj, V; Khati, MDate:Feb 2011A natural compound isolated from extracts of an indigenous plant in the Eastern Cape, South Africa, indicates neutralisation activity against HIV-1 pseudoviruses. This natural compound can potentially be used in a microbicide as an alternative ...Read more