Author:Ramchuran, Santosh O; Berger, E; Du Plessis, E; Crampton, BG; Louw, MEDate:Sep 2006In order to investigate the possibility of using the FliC display system for biotransformation in B. halodurans, construct pSECNLipC habouring the LipA gene from Geobacillus thermoleovorans was designed and evaluated in shake flasks and batch ...Read more
Author:Nahman, Anton; Oelofse, Suzanna HH; Palfreman, JDate:Oct 2022Leakage of plastics to the environment is an issue of global concern. A transition to a circular plastics economy is increasingly recognised as an important strategy for addressing plastic leakage and pollution, while potentially giving rise ...Read more
Author:Coetser, K; Strauss, P; Rust, FC; Vos, RMDate:Oct 1994Research on Heavy Duty Asphalt Pavements [HDAPs] was conducted by the CSIR Division of Roads and Transport Technology on behalf of the South African Bitumen and Tar Association [SABITA]. This research soon focused on Large Aggregate Mixes for ...Read more
Author:Roux, Michael P; De Beer, MorrisDate:2011This paper presents the results of an investigation into possible higher axle mass limits for axles and axle units fitted with wide base tyres, i.e. tyres with nominal section widths of 385 mm, 425 mm and 445 mm, by comparing the road wear ...Read more
Author:Venter, ANDate:Apr 2000The training landscape in South Africa is undergoing veritable metamorphoses as this report is compiled. The Skills Development Bill and its subsequent influence on the National Qualifications Framework (NQF) and the founding of the Mine ...Read more
Author:Xing, B; Bright, G; Tlale, NS; Potgieter, JDate:Jul 2006Manufacturing companies are facing three challenges: low cost production of product, high quality standard and rapid responsiveness to customer requirements. These three goals are equally important for the manufacturing companies who want to ...Read more
Author:Naidu, P; Bright, G; Tlale, NSDate:Jul 2006Reconfigurable manufacturing systems refer to the ability to vary the manufacturing process such that customized products can be manufactured on a large scale. Customization should not impair the production rate of any of the part assemblies. ...Read more
Author:Combrink, CJ; Venter, CJ; Govender, S; Alshareef, MADate:May 2011A reconfigurable Control and Monitoring Framework (CMF) was developed, integrated and tested with a Radar Signal Processor (RSP). The methods and processes used to develop and utilise the CMF are highlighted in the context of a complete Control ...Read more
Author:Khanyile, MosesDate:Oct 2017This presentation discusses the reconfiguration of the South African Defence Industry post 2015 in terms of its prospects and challenges.Read more
Author:De Beer, MorrisDate:Aug 2006Pavement/vehicle interaction is one of the growing areas in asphalt pavement design. Traffic volumes have increased considerably over the past few decades, and not only are modern trucks carrying heavier payloads, but they are also using fewer ...Read more
Author:Giovannini, D; Romero, J; Leach, J; Dudley, Angela L; Forbes, A; Padgett, MJDate:Jun 2013Efficient quantum state reconstruction of a high-dimensional multi-partite quantum system can be performed by considering mutually unbiased measurements of the individual parts. We illustrate this approach experimentally using a bipartite ...Read more
Author:Wilsenach, J; De Beer, Morris; Motaung, S; Bologo, L; Redebe, V; Moalusi, M; Maree, JDate:Nov 2008Acid mine drainage results from active as well as decommissioned mines in the gold mining and coal mining fields. This water is highly acidic, containing sulphate, iron, aluminium, heavy metals and some radioactivity. When discharged into the ...Read more
Author:Madzivhandila, V; Majozi, T; Zhelev, TDate:Oct 2010In this work, the contact economizer system is used to recover low potential heat from the gas turbine exhaust (flue gas) stream of a heat integrated IGCC plant adopted from previous studies. Recovery of this heat was demonstrated to be capable ...Read more
Author:Mulopo, J; Motaung, SR; Mashego, M; Moalusi, MDate:Oct 2010The reaction rate of sulphate removal from acid mine drainage using barium carbonate was studied for various pH, calcium concentration, and BaCO3/SO42 feed ratios in batch studies. Process synthesis concepts were used to investigate the ...Read more
Author:Oelofse, Suzanna HH; Godfrey, Linda K; Nahman, Anton; Strydom, WFDate:Oct 2014Recent statistics on recycling of post-consumer packaging suggest that South Africa recycled 50.5% of all post-consumer packaging waste in 2012 (BMI, 2013). As with most developing countries, these encouraging recycling figures would not have ...Read more
Author:Van Zyl, FJ; Linzer, PDate:Oct 1996In an effort to improve safety in the underground environment of a mechanical miner section, with relation to the methane hazard a data obtained with the multi-channel methane monitoring unit, combined with situ and laboratory coal analysis ...Read more
Author:Van Zyl, FJ; Linzer, PDate:Oct 1996Methane levels have been continuously monitored and recorded, at several positions, on and around continuous miners and road headers during mining operations. This has been achieved using a data logger system recording input from six methanometers ...Read more
Author:Afrika, M; Oelofse, Suzanna HH; Strydom, W; Mvuma, G; John, JDate:Oct 2010The adoption of the internationally accepted waste management hierarchy (Sakai et al, 1996) into South African policy has changed the focus from “end of pipe” waste management towards waste minimisation (reuse, recycling and cleaner production). ...Read more
Author:Meyer, CF; Van Zyl, FJDate:Apr 1999This report describes the number of investigation done in attempt to improve ventilating conditions in the face area where mechanical miners are executing bord-and-pillar developments. The first concentrated on the effective use of jet flow ...Read more
Author:Bogaers, Alfred EJ; Kok, S; Malan, AGDate:Jan 2010In this paper, we implement the method of Proper Orthogonal Decomposition (POD) to generate a reduced order model (ROM) of an optimization based mesh movement technique. In the study it is shown that POD can be used effectively to generate a ...Read more