Author:Sayle, TXT; Caddeo, F; Monama, Nkwe O; Kgatwane, KM; Ngoepe, PE; Sayle, DCDate:2015Molecular dynamics (MD) simulations of the charging of Li2MnO3 reveal that the reason nanocrystalline-Li2MnO3 is electrochemically active, in contrast to the parent bulk-Li2MnO3, is because in the nanomaterial the tunnels, in which the Li ...Read more
Author:Demlie, M; Jovanovic, Nebojsa; Naicker, SDate:Sep 2011The occurance of saline groundwater is documented within the Sandspruit catchment, Berg river basin in South Africa. To understand the origin, occurance and dynamics of this saline groundwater, a coupled analysis of major ion hydrochemistry ...Read more
Author:Landman, WA; Landman, SDate:Jul 2012Verification of weather and seasonal forecasts, as well as the statistical analysis of the spatial and temporal description of forecast and observed fields, are necessary to improve on our understanding of the capabilities of models to describe ...Read more
Author:Zulu, PN; Botha, G; Barnard, EDate:2007Two methods for objectively measuring similarities and dissimilarities between the 11 official languages of South Africa are described. The first concerns the use of n-grams. The confusions between different languages in a text-based language ...Read more
Author:Lombard, GE; Andres, A; Fito, P; Oliveira, JCDate:Feb 2006Osmotic dehydration was considered as a pre- treatment for tropical fruit, with the final aim of obtaining high- quality dried fruit products. Osmotic dehydration as a pre- treatment before further dehydration was studied on South African- ...Read more
Author:Mtetwa, SN; Sibeko, N; Tarwireyi, P; Abu-Mahfouz, Adnan MIDate:Nov 2020LoRaWAN is one of the LPWAN technologies that has become popular in both industries and research. LoRaWAN aims to provide long-range communication and empowers lowpowered devices to last for years in the field. LoRaWAN relies on the symmetric ...Read more
Author:Edwards, ALDate:Feb 2013Despite the attention that Noise-induced hearing loss (NIHL) prevention has received in the mining industry since 2003 when the milestone to eliminate NIHL was set, the statistics show that NIHL persists as one of the most common occupational ...Read more
Author:Edwards, ALDate:Feb 2013This position paper asserts that exposure to chemicals in certain occupations and work activities in the mining industry can lead to ototoxicity which accentuates the problem of noise-induced hearing loss (NIHL). Increased awareness of all ...Read more
Author:John, J; Oosthuizen, R; Webb, E; Voyi, K; Ijsselmuiden, CDate:Mar 2004The authors characterized the exposure of 5-year-old pre-school children, in two areas of Pretoria, to lead in air and surface soil. The study was conducted at 30 pre-schools in Soshanguve and 24 in Pretoria East during July 2001. Exposure ...Read more
Author:Dziba, LDate:Oct 2012In this presentation the author focuses on ecosystem service delivery for national development planning. He shares new tools for improved decision-making to assess trade-offs and development choice impacts on ecosystem services. He also ...Read more
Author:Le Roux, Alize; Arnold, Kathryn A; Makhanya, Sibusisiwe A; Mans, Gerbrand G; Wools, LDate:Sep 2018South Africa is experiencing high levels of population expansion and urbanisation, and this growth is occurring at an increasingly rapid pace. Population change over time (growth or decline) is an inevitable phenomenon. Current projections ...Read more
Author:Le Roux, Alize; Arnold, Kathryn A; Makhanya, Sibusisiwe A; Mans, Gerbrand G; Wools, LDate:Oct 2018South Africa is experiencing high levels of population expansion and urbanisation, and this growth is occurring at an increasingly rapid pace. Population change over time (growth or decline) is an inevitable phenomenon. Current projections ...Read more
Author:Fon, RC; Igboamalu, F; Ndjiongue, AR; Ouahada, K; Leke, C; Abu-Mahfouz, Adnan MIDate:Jul 2022Compared to well-established underwater acoustic communication techniques, underwater wireless optical communication (UWOC) offers significantly more transmission bandwidth and can be used in multiple short-range marine applications. Color-shift ...Read more
Author:Herselman, Martha E; Du Buisson, U; Marais, Mario A; Pitse-Boshomane, M; Roux, KDate:Oct 2010The purpose of this paper is to indicate how Outcome Mapping (OM) can be used as a methodology to monitor and evaluate a specific developmental informatics project currently under way in the Meraka Institute. OM was applied in the Broadband ...Read more
Author:Forbes, PBC; Garland, Rebecca MDate:Jul 2016This chapter focuses on the air pollutants which are generally found in the troposphere and does not provide detail on specific areas where atmospheric pollutants and atmospheric chemistry may differ from that generally found, such as in the ...Read more
Author:Cairns, RIDate:2000Small-scale timber growers access commercial timber markets in KwaZulu-Natal through three mechanisms. These are; highly structured contractual arrangements (SAPPI, Lima and Mondi); membership in commercial forest-owners associations or timber ...Read more
Author:Berglund, Martin; Drewes, F; Van der Merwe, BDate:Apr 2018The output size problem, for a string-to-tree transducer, is to determine the asymptotic behavior of the function describing the maximum size of output trees, with respect to the length of input strings. We show that the problem to determine, ...Read more
Author:Daswa, Pfarelo; Moller, H; Govender, GonasagrenDate:Mar 2019Al-Si-Mg casting alloys, such as Al-7Si-0.3Mg alloy A356, are heat treatable and can be precipitation hardened to the T6 temper condition. However, Al-Mg-Si casting alloys (5xx series) are generally not considered to be heat treatable. These ...Read more
Author:Bruning, R; Zhang, Y; McLaren, M; Duparre, M; Forbes, ADate:Sep 2015We investigated the overlap relation of the free-space Laguerre–Gaussian modes to the corresponding linearly polarized modes of a step-index fiber. To maximize the overlap for an efficient coupling of the free-space modes into a fiber, the ...Read more