Author:Byaruhanga, YB; Emmambux, MN; Belton, PS; Wellner, N; Ng, KG; Taylor, JRNDate:14 Jun 2006Heating with microwave energy and tannin complexation of kafirin both increase the tensile strength of cast kafirin bioplastic films. The effects of these treatments on the molecular structure of kafirin and of kafirin in the film were ...Read more
Author:Winschiers-Theophilus, H; Bidwell, NJ; Blake, EDate:Jun 2012In this paper, we illustrate through a set of examples how our own conceptualisation of participatory design (PD) and associated tools and techniques transforms within the design process itself. Co-designing with African rural communities has ...Read more
Author:Savage, WHDDate:1977In many tests the separating bath is fed with coal covering a wide range of sizes. This note is based on a study of data contained in FRI report No. 44 of 1977.Read more
Author:Ndhlovu, T; Nicolls, FDate:Nov 2009The authors present a confidence measure applied to individual disparity estimates in local matching stereo correspondence algorithms. It aims at identifying textureless areas, where most local matching algorithms fail. The confidence measure ...Read more
Author:Strydom, JFSDate:27 Nov 1979The objective of two of the studies was to choose the most economical source of heating energy, taking cognizance of the building owner’s particular circumstances; in both cases a suitable alternative to light petroleum oil, which had been ...Read more
Author:Kumar, R; Anandjiwala, RDDate:Mar 2012This paper provides methods for manufacturing alternative fuels from waste cellulosic substrates reinforced by poly furfuryl alcohol (PFA). PFA, as a matrix, is obtained from the condensation polymerization of furfuryl alcohol – a waste of ...Read more
Author:Du Plessis, JJLDate:Aug 1997This project was launched to determine whether other inert material might be suitable to replace or complement the stone dust. The materials investigated were two different types of fly ash, two types of stone dust, water and calcium sulphateRead more
Author:Turner, GRDate:2008An alternative method for the measurement of the total mechanical impulse of a vertically directed blast due to an explosive charge is presented. The method differs from apparatus that employ a vertically displaced mass (similar in principle ...Read more
Author:Smith, Andrew CDate:May 2010The authors investigate a potentially low-cost multi-user computer pointing interface. Given a choice of four targets arranged on the screen, the authors looked at what the user’s preference is in visiting the targets with a hand-held light ...Read more
Author:Van der Westhuizen, M; Steenkamp, Lucia H; Steenkamp, P; Apostolides, ZDate:Mar 2016The principal pigments present in black tea, theaflavins (TF), have been indicated to be of potential clinical significance in various fields of research which has been hampered by the very low levels of TFs from black tea extractions, being ...Read more
Author:Gibberd, Jeremy TDate:Dec 2020Climate change and rapid urbanisation have meant there is increasing pressure on water supplies in human settlements in South Africa. This has led to unreliable water supplies and outages. It is therefore important to understand whether there ...Read more
Author:Roberts, David P; Roberts, MKC; Jager, AJDate:May 2005The stoping of platinum orebodies in the Bushveld has in the past been accomplished by using in-stope pillars to ensure stability of the workings. In the future, the use of continuous mining machines to mine the platinum orebodies is probable, ...Read more
Author:Duvenhage, A; Duvenhage, BDate:Jun 2008Some progress has recently been made on migrating an existing distributed parallel discrete time simulator to a quantised discrete event architecture. The migration is done to increase the scale of the real-time simulations supported by the ...Read more
Author:Mkhwebane, Sesie E; Ntuli, Princess NDate:May 2019Over the past decade South Africa has seen an increase in the uptake of solar energy as a result of the Renewable Energy Independent Power Producer Programme, which led to a sharp increase in procurement of utility-scale solar PV projects. ...Read more
Author:Paige-Green, P; Cassiem, IDate:2003The Problems with the location of sustainable sources of suitable materials for the upgrading of various local roads to TRH 20 standard in a number of locations in the Limpopo Province resulted in an investigation to assess possible alternatives ...Read more
Author:Chamier, J; Wicht, M; Cyster, L; Ndindi, NPDate:Jul 2015Acid mine drainage (AMD) severely impacts the water chemistry of a receiving resource, changing the occurrence, speciation and toxicity of metals such as Aluminium (Al). The toxicity of Al is determined by its speciation represented by the ...Read more
Author:Van Hulten, M; Sterl, A; Tagliabue, A; Dutay, J-C; Gehlen, M; De Baar, HJW; Middag, RDate:Oct 2013A model of aluminium has been developed and implemented in an Ocean General Circulation Model (NEMO-PISCES). In the model, aluminium enters the ocean by means of dust deposition. The internal oceanic processes are described by advection, ...Read more
Author:Pityana, Sisa LDate:Dec 2011This work investigates the reinforcement of the aluminium matrix with TiC ceramic and in-situ synthesized AI-Ni intermetallic particles.Read more
Author:Abu-Mahfouz, Adnan MI; Hancke, GPDate:Mar 2017Many wireless sensor networks (WSNs) applications, techniques, and algorithms require the position of the sensor nodes. Sensor nodes mainly rely on localization algorithms to determine their own physical location. Usually, these sensor nodes ...Read more