Author:Paige-Green, PDate:Feb 2007One of the most important materials for the construction of high quality pavement layers in roads in South Africa is the Basic Crystalline group of rocks. The major deposits of these materials are associated with the dolerites and basaltic ...Read more
Author:Van Rensburg, NJJDate:Dec 1972The use of titanium tetrachloride and antimony oxide as flame-retarding agents for cotton was investigated.Read more
Author:de Wet, p; Mather, A; Theron, ADate:Oct 2010This presentation provides a short background and history of the Durban Bay monitoring area, and then progresses to providing maps of the areas monitored. Beach survey data is discussed, and the effects of sandmining touched on.Read more
Author:Hole, BJ; Von Glehn, HFDate:Mar 1998The project was directed towards bord and pillar working by mechanised miners operating in larger section roadways, where the problem of scrubber capture tends to be greatest owing to the limited size of the zone of influence around exhaust ...Read more
Author:Belle, BKDate:Feb 2002This report describes research project COL 807 which was formulated to find ways of keeping down the dust in thick-seam wall operations to concentration levels of less than 5 mg/m3 and to minimize the dust exposure of workers while maintaining ...Read more
Author:Bembe, M; Dludla, Angeline G; Ngwenya, D; Mekuria, FissehaDate:Jul 2015DVB-NGH (Digital Video Broadcasting-Next Generation Handheld) is the next generation technology for mobile TV broadcasting. It integrates both satellite and terrestrial techniques, which is vital in supporting rich media content for mobile ...Read more
Author:Wall, K; Manus, A; Moodley, K; Boshoff, L; Ottermann, ADate:May 2008This paper describes the steady progress that the Department of Water Affairs and Forestry (DWAF) has been making with formulating a national water services infrastructure asset management (IAM) strategy. A "scan" of the state of water services ...Read more
Author:Cummings, FDate:Nov 2009This presentation gives an overview of the background of dye solar cell research, specifically the CSIR dye solar cell research, and collaborations and links.Read more
Author:Cummings, FDate:09 Nov 2009This presentation gave an overview of the background of dye solar cell research, specifically the CSIR dye solar cell research, and collaborations and links.Read more
Author:Le Roux, Lukas JDate:Feb 2006Various institutions are doing research on photovoltaics in South Africa. Although the CSIR is the only one that does research on DSC's there is significant support from the different universities. In the presentation a short overview of the ...Read more
Author:Le Roux, Lukas J; Hietkamp, S; Cummings, FDate:Nov 2008An attractive and cheaper alternative to siliconbased photovoltaic (PV) cells for the conversion of solar light into electrical energy is to utilise dyeadsorbed, large-band-gap metal oxide materials such as TiO2 to absorb the solar light. ...Read more
Author:Le Roux, Lukas J; Arendse, C; Hietkamp, S; Knoesen, DDate:Jul 2005A novel system that harnesses solar energy is the nano-crystalline TiO dye-sensitised solar cell (DSC), in conjunction with several new concepts, such as nanotechnology and molecular devices. An efficient and low-cost cell can be produced by ...Read more
Author:Le Roux, Lukas J; Arendse, C; Hietkamp, SDate:Feb 2006As fuel sources become depleted, there is an increasing need to turn to alternative sources of energy. Of particular interest, especially in southern Africa, is solar energy, since it is clean and abundant. A novel system that harnesses solar ...Read more
Author:Gamedze, NF; Hunter, Lawrance; Zwane, PEDate:Jun 2019The growing awareness of environmental issues and damage has generated renewed interest in the use of eco-friendly natural dyes for natural fibres such as cotton. With that in mind, the dyeing of cotton fabrics with Syzygium cordatum natural ...Read more
Author:Silver, HMDate:May 1974A method of dyeing cotton with the monochlorotriazine of reactive dyes from a charged perchloroethylene solution is described.Read more
Author:Silver, HMDate:Jun 1974Methods of dyeing cotton with the acryloylamide and trichloropyrimidine classes of reactive dyes from a charged perchloroethylene solution are described.Read more
Author:Silver, HMDate:Jun 1974Methods of dyeing cotton with the acryloylamide and trichloropyrimidine classes of reactive dyes from a charged perchloroethylene solution are described.Read more
Author:Brandt, JPMDate:Sep 1977The suitability of certain reactive disperse dyes and acid dyes for dyeing Nylon 66 from an aqueous charged perchloroethylene system was investigated.Read more
Author:Roesstorff, L; Swanepoel, OADate:Jul 1970A charge consisting of a mixture of an anionic surfactant, an alkylolamide and water is described which can be used for the emulsification of a large number of wool dyestuffs in perchlorethylene medium.Read more