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Now showing items 5353-5372 of 8144
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(CSIR, 2015-10)This presentation discusses the roles and uses of radar, radio frequency electronic warfare and optronics as operational defence systems.
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(2005-07)A number of the most successful drugs are going off patent in the next 5 years. Generic prescription drugs are continuously making up a larger proportion of the total drug market. Therefore, the drug delivery systems used ...
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(European Optical Society, 2012-08)We report orbital angular momentum (OAM) and angle correlations between signal and idler photons observed when the nonlinear crystal used in spontaneous parametric down-conversion is illuminated by a non-fundamental Gaussian ...
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(Pergamon-Elsevier Science Ltd, 1997)Late Pleistocene variations in rainfall in subtropical Southern Africa are estimated from sediments preserved in the Pretoria saltpan, a 200,000 year-old closed-basin crater lake on the interior plateau of South Africa. ...
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(American Physical Society, 2013-06)The turbulence-induced decay of orbital-angular-momentum (OAM) entanglement between two photons is investigated numerically and experimentally. To compare our resultswith previouswork,we simulate the turbulent atmosphere ...
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(Elsevier, 2014-02)There are increasing concerns regarding the safe human consumption of fish from polluted, freshwater impoundments. The aim of this study was to analyse the muscle tissue of the sharptooth catfish Clarias gariepinus for ...
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(Elsevier, 2013-12)High quality un-doped and Mn-doped ZnO films deposited by a simple aerosol spray pyrolysis technique for 20 and 30 min were studied using electron paramagnetic resonance (EPR), X-ray diffraction (XRD) and atomic force ...
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(2011-09)The 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 ...
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(2012-07)Verification 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 ...
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(CSIR, 2007)Two 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 ...
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(2006-02)Osmotic 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 ...
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(Mine Ventilation Society of South Africa, 2013-02)Despite 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 ...
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(Mine Ventilation Society of South Africa, 2013-02)This 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 ...
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(Acad Science South Africa, 2004-03)The 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 ...
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(2012-10)In 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 ...
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Outcome mapping as methodology to monitor and evaluate community informatics projects: A case study (2010-10)The 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 ...
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(Elsevier, 2016-07)This 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 ...
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(IIED & CSIR, 2000)Small-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 ...
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(2015-09)We 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 ...
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(CSIR, 2005-03)Not only do overloaded vehicles pose an increased safety risk on the road (reduced stability and braking efficiency etc.), but they also accelerate the rate of deterioration of the road network and increase road maintenance ...
Now showing items 5353-5372 of 8144
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