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Browsing General science, engineering & technology by Title

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  • Ittmann, HW (PRETORIA NEWS, 2008-10-09)
    October marls National Transport month, giving rise to opportunities to focus on and draw attention to a variety of aspects associated with transport. Everyone in the country is affected by transport in one way or another, ...
  • Rust, FC; McCutcheon, RT; Coetzee (Southern African Transport Conference (SATC), 2008-07)
    It is well-recognised internationally that transport and transport infrastructure play a major role both in the stimulation of economic growth, creation of job opportunities and in poverty alleviation. This is of particular ...
  • De Haan, ML; Coovadia, T; De Jager, PJD (SA Department of Transport & CSIR Transportek, 1996-04)
    This publication contains information on all major modes of transport in South Africa. The transport sector is placed in perspective relative to the macro economy and a number of important transport indicators are given. ...
  • Shepperson, L; Matjilla, S (SA Department of Transport & CSIR Transportek, 1997-12)
    This publication contains transport and related statistics on roads, vehicles, infrastructure, passengers, freight, rail, air, maritime and road traffic, and international comparisons. The information compiled in this ...
  • Sinclair, M; Bester, C; Van Dyk, E (Sun Media 2012, 2012-07)
    No community can reach its full potential without an effective transport system. Transport has a direct bearing on most of the activities of the people of such a community – whether it is their daily commute to or from ...
  • Rust, FC; Venter (2004-03-31)
    CSIR Transportek decided to undertake a business and technology foresight study in order to enhance its decision making process for the investment of its Parliamentary Grant funding. The study was divided into for phases ...
  • Godin, T; Forbes, A; Naidoo, Darryl; Fromager, M; Cagniot, E; Aït-Ameur, K (Elsevier, 2011-06)
    The concept of transverse correlation vanishing, between the fraction of power contained in the centre and wings of a probe beam, recently introduced [Opt. Commun. 282 (2009) 3854–3858] is important to be considered when ...
  • Naidoo, Darryl; Godin, T; Fromager, M; Cagniot, E; Passilly, N; Forbes, A; Aït-Ameur, K (Elsevier, 2011-11)
    The article outlines an approach to mode selection in a microchip laser through judicious shaping of the pump light to create a high modal overlap with the desired mode. The authors demonstrate the principle by creating a ...
  • Senekal, F (2013-09)
    A new fast algorithm for traversability analysis of an arbitrary three-dimensional point cloud is presented. The algorithm segments a three-dimensional point cloud into vertical sections; each of which is clustered into ...
  • Burke, Ivan D; Van Heerden, Renier P (2017-06)
    During the past 10 years data breaches have become more frequent than ever. Large volumes of personal and corporate data are being leaked via these breaches. The corporate responses to these breaches, as well as, the ...
  • Mozes, TE (1982-08)
    Wool and mohair aqueous scouring wastes are known to be of a highly polluting nature. These cannot be discharged into municipal sewers because municipal authorities have been compelled for ecological reasons to demand a ...
  • Maree, JP; Greben, HA; De Beer, Morris (Water Research Commission, 2004-04)
    A novel chemical/biological process is described in which sulphate and sulphide are removed simultaneously during biological treatment. Partial sulphate removal is achieved during chemical pre-treatment. In the biological ...
  • Bogaers, Alfred EJ; Kok, S; Reddy, BD; Franz, T (2013-07)
    In recent years a great deal of advances have been made with respect to Dirichlet-Neuman (DN) partitioned fluid-structure interaction (FSI) solvers. Problems of varying degrees of complexity can be solved with reasonable ...
  • Turner, P; Murphy, RJ (Springer Verlag, 1995-08)
    Several factors which influence the treatment of timber products with vapour phase preservatives such as borate esters are considered. Gas flow rate through the substrate was found to be a significant factor limiting both ...
  • Turner, P; Murphy, RJ (Springer Verlag, 1998-03)
    This paper forms a continuation of the work on treatment of timber products with gaseous borate esters. Turner and Murphy (1995) in an earlier paper indicated that gas flow rate into the wood substrate was the principle ...
  • Schoeman, JJ; Steyn, A; Scurr, PJ (Pergamon-Elsevier Science Ltd, 1996-09)
    Reverse osmosis (RO) and physical/chemical technology were evaluated for treatment of neutralized spent acid effluent (seepage) containing high concentration levels of TDS (7500mg/l), Ca (400 mg/l), Cr-V1 (42 mg/l), ...
  • Staver, AC; Archibald, S; Levin, S (Ecological Society of America, 2011)
    Savannas are known as ecosystems with tree cover below climate-defined equilibrium values. However, a predictive framework for understanding constraints on tree cover is lacking. The authors present a) a spatially extensive ...
  • Mathieu, Renaud SA; Wessels, Konrad J; Asner, G; Knapp, D; van Aardt, J; Main, R; Cho, Moses A; Erasmus, B; Smit, I (IEEE, 2009-07)
    High resolution airborne hyperspectral and discrete return LiDAR data were used to assess bare soil and tree cover differences along a land use transect consisting of state-owned, privately-owned conservation areas, and ...
  • Van Schoor, Michael; Colvin, C (2009-09)
    In this paper, the application of ground penetrating radar (GPR) for the mapping of near surface tree roots is demonstrated. GPR enables tree roots to be mapped in a non-destructive and cost-effective manner and is therefore ...
  • Scholes, RJ; Archer, SR (Annual Reviews Inc, 1997)
    Savannas occur where trees and grasses interact to create a biome that is neither grassland nor forest. Woody and gramineous plants interact by many mechanisms, some negative (competition) and some positive (facilitation). ...

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