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, LL; Kleynhans, TEDate:Mar 2010This article takes a closer look at the choice of a HBU in agricultural land valuation practice in the presence of alternative land uses. This is done through a critical overview of the relevant valuation literature, with specific reference ...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:Sibisi, SDate:26 Sep 2007At a ceremony at the Union Buildings in Pretoria on Friday, CSIR President and CEO, Dr Sibusiso Sibisi, was among a group of South Africans who received the National Orders from President Thabo Mbeki. The Orders are bestowed on South Africans ...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:Maponya, TG; Makgopa, K; Somo, TR; Tshwane, David M; Modibane, KDDate:Dec 2023Herein, a metal–organic framework (MIL-101(Cr)) was synthesized and functionalized with ethylenediamine-glutaraldehyde (ED-GA for removal of palladium (Pd2+) and platinum (Pt4+) from wastewater. The chemical structure, surface properties, ...Read more
Author:Bhaumik, M; Choi, HJ; Seopela, MP; McCrindle, RI; Maity, ArjunDate:Jan 2014Sulfuric acid modified avocado seed (ASSA), as a low-cost carbonized adsorbent, was investigated for the removal of toxic Cr(VI) from water/wastewater in batch experiments. A low temperature (100 °C) chemical carbonization treatment was ...Read more
Author:Motshekga, Sarah C; Ray, Suprakas SDate:Mar 2017Disinfection of bacterially-contaminated drinking water requires a robust and effective technique and can be achieved by using an appropriate disinfectant material. The advanced use of nanomaterials is observed as an alternative and effective ...Read more
Author:Mhlongo, Gugu H; Motaung, David E; Cummings, FR; Swart, HC; Ray, Suprakas SDate:Jul 2019The gas-detecting ability of nanostructured ZnO has led to significant attention being paid to the development of a unique and effective approach to its synthesis. However, its poor sensitivity, cross-sensitivity to humidity, long response/recovery ...Read more
Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Jul 2019Modern energy detectors typically use adaptive threshold estimation algorithms to improve signal detection in cognitive radio–based industrial wireless sensor networks (CR‐IWSNs). However, a number of adaptive threshold estimation algorithms ...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:Godfrey, Linda K; Oelofse, Suzanna HHDate:Oct 2017Recycling has been taking place in South Africa for more than three decades, driven by social and economic needs. While the waste hierarchy is embedded in national policy, an extensive legislative framework has made it more and more challenging ...Read more
Author:Cooper, J; Avery, GDate:Jul 1986This report gives the results of a workshop held on historical sites at the sub-Antarctic Prince Edward islands, southern Indian Ocean. All known visits and sojourns on the Prince Edward islands up to 1948 are tabulated. All known historical ...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:Van den Bergh, F; Wessels, Konrad J; Miteff, S; Van Zyl, TL; Gazendam, AD; Bachoo, AKDate:Aug 2012Course resolution earth observation satellites offer large data sets with daily observations at global scales. These data sets represent a rich resource that, because of the high acquisition rate, allows the application of time-series analysis ...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