Author:Lwanda, V; Kagombora, J; Digaga, A; Magafu, FF; Mgangira, Martin BDate:Oct 2018Africa Community Access Partnership (AfCAP) is supporting research activities in Africa region. One of the projects supported by AfCAP in research activities was to build capacity and implement a laboratory skills development programme for ...Read more
Author:Le Roux, Lukas J; Zunckel, M; McCormick, SGDate:Jan 2005The Department of Minerals and Energy (DME) piloted the top-down Basa njengo Magogo fire ignition method at Orange Farm during the winter in 2003. In total, 76 per cent of households reported less smoke in their homes, 67 percent reported ...Read more
Author:Smit, Michelle A; Akhalwaya, Imraan; Rust, FCDate:Jul 2021The South African road network is severely impacted by the high costs associated with upgrading, maintaining and constructing road infrastructure in conjunction with the shortage of good quality construction materials. The Council for Scientific ...Read more
Author:Akhalwaya, Imraan; Rust, Frederik CDate:Jul 2018Nano-modified emulsions (NMEs) have recently been used successfully across a number of trial projects in South Africa. Following the development of initial draft design approaches for NME stabilising agents, the Council for Scientific and ...Read more
Author:Anochie-Boateng, Joseph; George, TBDate:Jul 2016CSIR is currently undertaking a study on potential utilization of crushed glass as a substitute material to natural aggregate in asphalt mixes. As part of the study, laboratory investigation is needed to determine the performance characteristics ...Read more
Author:Mokoena, Refiloe; Mvelase, Gculisile MDate:Oct 2019The study presented in this paper aims to promote the use of coal ash in railway infrastructure as a more economical and sustainable material. The study serves as a preliminary investigation on using coal ash as one of the structural layers ...Read more
Author:Deadman, AJ; Behnert, ID; Fox, NP; Griffith, DDate:Jul 2011This paper presents the results of the laboratory and field based reflectance panel and radiometer comparisons that took place as part of the CEOS 2010 Key comparison of “techniques and instruments used for the vicarious calibration of Land ...Read more
Author:George, Theresa B; Anochie-Boateng, Joseph; Jenkins, KJDate:Sep 2020In South Africa research is currently under way to determine the suitability of using locally available recycled crushed glass as a partial fine aggregate substitute in the production of asphalt mixes. This paper characterises the laboratory ...Read more
Author:Paige-Green, P; Leyland, R; Maharaj, ADate:Aug 2010The development of stiffness of stabilized materials with time is critical to the construction process, particularly in the case of recycling, where traffic is often required to return to the recycled road soon after construction. However, ...Read more
Author:Theron, BertusDate:Apr 2013The purpose of the workshop was for participants to interactively discuss (with regard to optical imaging or optical imaging systems): Local end-user needs; What those needs imply for associated new & existing laboratory testing & measurement ...Read more
Author:Paige-Green, P; Hongve, J; Sampson, L; Cassiem, IDate:Sep 2004The primary objective of the study discussed in this paper was to assess the different alternatives to the provision and maintenance of a good gravel wearing course, in financial and economic terms as well as suitability for labour-based ...Read more
Author:Dlamini, N; Mapiravana, JosephDate:Sep 2011For this workshop, members of the Regional research alliance (RRA) and delegates from the construction industry were invited to present ideas and contribute towards the implementation of Ultrathin Concrete road pavements. Dr. Joe Mapiravana ...Read more
Author:Wellington, Kevin W; Kolesnikova, NIDate:May 2012Nuclear monoamination of a 1,4-naphthohydroquinone with primary aromatic amines was catalysed by the commercial laccase, Novozym 51003, from Novozymes to afford aminonaphthoquinones. The synthesis was accomplished by reacting a mixture of the ...Read more
Author:Wellington, Kevin W; Govindjee, Varsha P; Steenkamp, PaulDate:Dec 2018A commercial laccase, Suberase from Novozymes, catalyses the synthesis of triaminated cyclohexa-2,4-dienones and a methylbenzene-1,2-diol derivative. The primary amine (analine) and the catechol was reacted under mild conditions (40C) in a ...Read more
Author:Wellington, Kevin W; Gordon, GER; Ndlovu, LA; Steenkamp, PDate:Jun 2013Oxidative C-S and C-C bond formation with aryl and alkyl thiols was catalyzed under mild conditions in a reaction vessel open to air at pH 4.5 in the presence of a commercial laccase (Novozym 51003 or Suberase) and a cosolvent (DMF) to afford ...Read more
Author:Trichili, A; Mhlanga, T; Naidoo, Darryl; Dudely, A; Zghal, M; Forbes, ADate:17 Aug 2014We analyze the effect of atmospheric turbulence on the propagation of multiplexed Laguerre Gaussian modes. We present a method to multiplex Laguerre Gaussian modes using digital holograms and decompose the resulting field after encountering ...Read more
Author:Sibisi, TH; Shongwe, MB; Tshabalala, Lerato C; Mathoho, IpfiDate:Aug 2023A cutting-edge manufacturing technology that uses powder or wire as the feeding material and a high-energy heating source is known as metal additive manufacturing (AM). High-performance components for automotive, aerospace, medical, and energy ...Read more
Author:Audouin, Michelle ADate:Jan 2007Unsustainable agricultural practices have had a role to play in the degradation of land on which agriculture depends. South Africa has an international obligation to develop a National Action Programme (NAP), the purpose of which is to identify ...Read more
Author:Von Maltitz, Graham P; Van der Merwe, Martina RDate:Apr 2017The Southern African region, from a purely biophysical perspective, has huge potential for biofuel production, especially in Mozambique and Zambia. Although many of the soils are sandy and acidic, with careful management and correct fertilization, ...Read more
Author:Napier, MarkDate:Oct 2013Most people living in cities in Africa live outside of the legal system, without clear rights to the land they occupy. These pieces of land make up the so-called slums which surround and permeate most growing cities, and which are home to ...Read more