Author:Moller, H; Govender, G; Stumpf, WDate:Apr 2009The T5 heat treatment of semi-solid metal (SSM) processed alloy F357 was investigated by considering the effects of cooling rate and natural aging after casting, as well as artificial aging parameters on tensile properties. In addition, the ...Read more
Author:Moller, H; Govender, G; Stumpf, WEDate:2008Semi-solid metal (SSM) processing is a unique manufacturing method to produce near-net shape products for various industrial applications. The aim is to obtain a semi-solid structure free of dendrites (which are formed by conventional liquid ...Read more
Author:Sebetoa, Matlapane R; Nwanebu, Docas; Malinga, Andries L; Venter, Jacobus PDate:Aug 2023Enabling Forward Air Control (FAC) through the Tactical Data Link (TDL) is an essential capability in modern military operations, providing effective Close Air Support (CAS). The modern TDL-based FAC system can enable faster, more reliable, ...Read more
Author:Dlodlo, N; Tolmay, JPDate:2011This paper describes an architecture that was designed to enable access to the scenarios/challenges on the SINGA platform. SINGA is a virtual platform that enables children facing barriers of access to information, services and people to learn ...Read more
Author:Roux, SDate:Jul 2011At the CSIR’s National Laser Centre, a team of researchers is pursuing Free Space Quantum Communication: transmitting optical signals by using the quantum properties of laser light. The aim is to provide secure and safe ways of communication ...Read more
Author:Aderibigbe, BA; Owonubi, SJ; Jayaramudu, J; Sadiku, ER; Ray, SSDate:Oct 2015Hydrogel biocomposites containing a combination of partially and thermally reduced graphene oxide (rGO) and natural polymer were prepared by free radical polymerization. The effect of rGO and the natural polymer on the morphology of the ...Read more
Author:Baichan, P; Naicker, Previn; Devar, JWS; Smith, M; Candy, GP; Nweke, EDate:Feb 2020Gallbladder cancer (GBC) has a poor prognosis with a 5-year survival rate suggesting the need for more effective treatment strategies. Studying the cross-talk of several pathways involved in crucial cellular and biological processes such as ...Read morecb
Author:Hobbs, Philip JDate:Oct 2017Evidence of a mine-water impact on groundwater in the karst aquifer downstream of the actively draining West Rand Goldfield can be traced back to the early 1980s. This is attributed to the dewatering of ‘fissure water’ encountered during ...Read more
Author:Botha, Adèle; Herselman, Martha EDate:Nov 2015This article draws upon the experiences gained in participating in an Information and Communication Technology for Rural Education (ICT4RED) initiative, as part of a larger Technology for Rural Education project (TECH4RED) in Cofimvaba in the ...Read more
Author:Botha, Adèle; Herselman, Martha EDate:Dec 2017The purpose of this paper is to provide insight into how teachers became cocreators by merging their existing knowledge of their subject, context, and new knowledge of using mobile tablets towards enhancing their teaching practices. This was ...Read more
Author:Kovalchik, PG; Duda, FT; Harper, GSDate:May 2009This report describes the procedure for the measurement and reporting of noise from portable pneumatic tools such as jackleg drills. The technique used in this research allows for the determination of the source A-weighted sound power levels ...Read more
Author:Beyers, MEDate:1975A technique based on superposition of tricyclic solutions has been proposed for smoothing free-flight angular motion. When incorporated into a conventional tricyclic data reduction program, the method is convenient to use and does not require ...Read more
Author:Mabalane, PN; Oboirien, BO; Masukume, MikeDate:Mar 2020Due to the increased population growth in South Africa, particularly in urban areas, the generation of municipal solid waste has increased and so is the demand of energy. Municipal solid waste can be considered a good candidate for electricity ...Read more
Author:Oboirien, BO; North, Brian C; Kleyn, TDate:Mar 2014Oxy-fuel technology is one of the potential solutions to reduce CO(sub2) emissions from coal-fired power plants. Although vendors offer a “retrofit package,” to the best of our knowledge there has not been a study undertaken that looks at the ...Read more
Author:Tesfaye, T; Ayele, A; Ferede, E; Gibril, M; Kong, F; Sithole, Bishop BDate:Nov 2020Generation of waste from the agro-processing industry is continually increasing due to increasing needs for food security. Beneficiation of this waste has both economic and environmental impacts that can be overcome via implementation of ...Read more
Author:Aderemi, BA; Chowdhury, SPD; Olwal, TO; Abu-Mahfouz, Adnan MIDate:Jun 2018Over the years, sustainability and impact on the environment, as well as operation expenditure, have been major concerns in the deployment of mobile cellular base stations (BSs) worldwide. This is because mobile cellular BSs are known to ...Read more
Author:Willis, PHDate:Jan 2000Since the 14th CMMI conference, held in Edinburgh in 1990, at which a paper was presented by the author (Willis, 1990) reviewing the role of integrating new technology as a survival strategy for South African gold mines, considerable change ...Read more
Author:Grover, AS; Van Huyssteen, GB; Pretorius, MWDate:Jul 2011South Africa (SA) epitomises diversity, with the nation boasting eleven official languages. The field of human language technology (HLT) can play a vital role in bridging the digital divide and thus has been recognised as a priority area by ...Read more