Author:Botha, Johannes G; Pieterse, HeloiseDate:Mar 2020Fake news, often referred to as junk news or pseudo-news, is a form of yellow journalism or propaganda created with the purpose of distributing deliberate disinformation or false news using traditional print or online social media. Fake news ...Read more
Author:Smith, Andrew CDate:Jul 2021The English language is but one of many languages globally in use, yet it seems to dominate the world of automation in its application to computer programming. Our research considers a programming environment in which the written word is not ...Read more
Author:Jule, L; Mal’nev, V; Mesfin, B; Senbeta, T; Dejene, FDate:Jul 2015We investigate light scattering by core–shell consisting of metal/dielectric composites considering spherical and cylindrical nanoinclusions, within the framework of the conventional Rayleigh approximation. By writing the electric potential ...Read more
Author:Senekal, FPDate:Nov 2009The ability to detect and navigate drivable road surfaces is an important research area in autonomous navigation for use in autonomous vehicles. In this paper, a probabilistic computer vision algorithm for segmentation of tarred road surfaces ...Read more
Author:Masina, Bathusile N; Lafane, S; Wu, Lorinda; Kerdja, T; Abdelli-Messaci, S; Forbes, ADate:Oct 2013The main objective of this study is to fully optimise the synthesis of vanadium oxide nanostructures using pulsed laser deposition. We will attempt to realise this by studying the mechanism of the plasma formation and expansion during the ...Read more
Author:Ramulifho, T; Ozoemena, KI; Modibedi, Remegia M; Jafta, CJ; Mathe, Mahlanyane KDate:Jan 2012The preparation of metal nanoparticles (Pd, Ni, Sn) supported on sulfonated multi-walled carbon nanotubes (SF-MWCNTs) using a very rapid microwave-assisted solvothermal strategy has been described. Electrocatalytic behaviour of the SF-MWCNT-Pd ...Read more
Author:Senekal, FDate:Nov 2010A new method for object detection using region based characteristics is proposed. The method uses correlation between features over a region as a descriptor for the region. It is shown that this region descriptor can be successfully applied ...Read more
Author:Kotze, FJ; Strydom, CA; Du Plessis, A; Dlamini, TLDate:Mar 2010The direct excitation of CO2 using fast (nanosecond) and ultrafast (femtosecond) pulsed lasers was investigated. A gas reaction cell was used to excite CO2 in a 50 : 50 mixture of CO2 and CH4 using nano- and femtosecond laser systems, to ...Read more
Author:Musee, N; Zvimba, JN; Schaefer, Lisa M; Nota, N; Sikhwivhilu, LM; Thwala, MelusiDate:2014The fate and behaviour assessment of ZnO- and Ag-engineered nanoparticles (ENPs) and bacterial viability in a simulated wastewater treatment plant (WWTP) fed with municipal wastewater was investigated through determination of ENPs stability ...Read more
Author:Chaúquea, EFC; Zvimba, JN; Ngila, JC; Musee, NDate:Aug 2013Wastewater treatment plants (WWTPs) employ activated sludge processes to treat domestic wastewater using a consortium of bacteria essentially to degrade organic matter. However, bacteria activity is inhibited by toxic substances; thus, ...Read more
Author:Masindi, Vhahangwele; Gitari, MW; Tutu, H; De Beer, MorrisDate:Mar 2016This study assessed the fate of inorganic contaminants post treatment of acid mine drainage by cryptocrystalline magnesite. To accomplish that, neutralization and metal attenuation were evaluated and complemented with simulations using ...Read more
Author:Masindi, Vhahangwele; Osman, Muhammad S; Mbhele, Nkhangweleni R; Rikhotso, Rirhandzu SDate:2017Basic Oxygen Furnace (BOF) slag has been widely used for Acid Mine Drainage (AMD) treatment with its reaction chemistry and contaminants attenuation mechanisms barely reported. This pioneer study was therefore designed with the aim of evaluating ...Read more
Author:Schaefer, Lisa M; Brözel, VS; Venter, SNDate:Aug 2013Investigations were carried out to evaluate and quantify colonization of laboratory-scale drinking water biofilms by a chromosomally green fluorescent protein (gfp)-tagged strain of Salmonella Typhimurium. Gfp encodes the green fluorescent ...Read more
Author:Madzivire, G; Gitari, WM; Kumar Vadapalli, VR; Ojumu, TV; Petrik, LFDate:Oct 2011The treatment of acid mine drainage (AMD) and circumneutral mine water (CMW) with South African coal fly ash (FA) provides a low cost and alternative technique for treating mine wastes waters. The sulphate concentration in AMD can be reduced ...Read more
Author:Gumbo, AD; Kapangaziwiri, EvisonDate:Oct 2021Sustaining a steady supply of water to urban communities is of importance in a period that is characterised by rapid urban population growth, a global pandemic, and a changing climate that threatens the availability of the resource from its ...Read more
Author:Musee, NDate:Apr 2012Historical analysis of different technologies' evolution reveals how many of them failed to achieve the intended societal benefits. This is primarily because their associated health, safety, and environmental effects were detrimental to the ...Read more
Author:Dabrowski, JM; Dabrowski, James M; Hill, Liesl; Macmillan, P; Oberholster, Paul JDate:Aug 2014Concentrations of pollutants were measured in water, sediment and algal samples collected along a longitudinal gradient from a stretch of the Olifants River, South Africa, that receives acid mine drainage (AMD) from the Klipspruit River. The ...Read more
Author:Verhaeghe, Benoit MJA; Rust, FC; Airey, GD; Vos, RMDate:Oct 1994As part of a study conducted for Sabita on Heavy Duty Asphalt Pavements (HDAPs), the CSIR Division of Roads and Transport Technology developed a comprehensive and practical mix design method for large-aggregate mixes. In this paper, a framework ...Read more
Author:Rust, FC; Harvey, JT; Verhaeghe, Benoit MJA; Noakes, W; Van Kirk, JDate:Oct 1994The Californian Department of Transportation commissioned a pilot project to evaluate the potential of the Heavy Vehicle Simulator (HVS) for conduction pavement studies. The effect of channelisation of traffic on the rutting behaviour of a ...Read more