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
Author:Price, Catherine S; Moodley, Deshendran; Pillay, Anban WDate:Sep 2018Sugarcane growers usually burn their cane to facilitate its harvesting and transportation. Cane quality tends to deteriorate after burning, so it must be delivered as soon as possible to the mill for processing. This situation is dynamic and ...Read more
Author:Newell, N; Neal, W; Pandelani, Thanyani A; Reinecke, John D; Proud, WG; Masouros, SDDate:Jan 2016Improvised Explosive Devices have been the signature weapon in the recent conflicts in Iraq and Afghanistan. High-rate axial forces exerted by the vehicle floor to the lower limbs of occupants have been the cause of severe injuries. In order ...Read more
Author:Shoke, Lerato; Mutombo, Kalenda; Snyman, Izak M; Sono, Tleyane JDate:Oct 2016This paper deals with characterisation of blast loading to a mild steel plate (SUPRAFORM TM380) and titanium alloy (Ti6Al4V). Circular plates 3 mm thick with diameter 306 mm were impulsively loaded by a 20 g PE4 cylindrical charge at a standoff ...Read more
Author:Kareem, TR; Matthee, Karel W; Chan, HA; Ntlatlapa, Ntsibane SDate:Sep 2008This paper investigates the challenges involve in designing a dynamic channel assignment (DCA) scheme for wireless mesh networks, particularly for multi-radio systems. It motivates the need for fast switching and process coordination modules ...Read more
Author:Nobre, AM; Musango, JK; de Wit, MP; Ferreira, JGDate:Feb 2008The objective of this report is to conceptualize ecological and economic interactions in mariculture; to implement a dynamic ecological-economic model in order to: simulate the socio-economics of aquaculture production, simulate its effects ...Read more
Author:Naidoo, Kavendra; Skews, BWDate:Jun 2011There have been numerous studies on the steady state transition criteria between regular and Mach reflection of shock waves generated by a stationary, two-dimensional wedge in a steady supersonic flow, since the original shock wave reflection ...Read more
Author:Mutombo, K; Siyasiya, C; Stumpf, WEDate:Dec 2013Ti6Al4V samples were isothermally compressed using a Gleeble (supTM) 1500D thermo-mechanical simulator. Differential scanning calorimetry (DSC), microstructural analyses, and thermodynamic calculations were used to investigate the sequence ...Read more
Author:Pothan, LA; George, CN; John, Maya J; Thomas, SDate:2009Hybrid composites of glass and banana fiber (obtained from the pseudo stem of Musa sapientum) in polyester matrix, are subjected to dynamic mechanical analysis over a range of temperature and three different frequencies. The effect of temperature ...Read more