Author:Mokuwe, Mamuku W; Goorun, Yurisha; Crafford, Gerhardus JDate:Oct 2022This work presents a vision-based quality assurance system that does assembly line monitoring. The system is developed using machine learning hand tracking and object detection methods to monitor the worker’s hand movement while evaluating ...Read more
Author:Ashworth, SGE; Peake, AVDate:Mar 1994This report summarises both the statistical analysis of accident data and detailed accident case studies in attempt to make a complete conclusions of what causes the accidents in gold and platinum mines. And also discusses the recommendations ...Read more
Author:Oberholzer, MM; Oberholster, PJ; Ndlela, Luyanda L; Botha-Oberholtster, AM; Truter, CJDate:Jun 2022Acid mine drainage (AMD) is a global problem with severe consequences for the environment. South Africa’s abandoned mines are a legacy from the country’s economic dependence on the mining sector, with consequent negative impacts on ecosystems. ...Read more
Author:Oosthuizen, Rudolph; Pretorius, LDate:Jun 2013Command and Control (C2) is a complex sociotechnical system. Humans, being part of the C2 system, make sense of the situation to support decision making. Communication technology distributes information and orders within a social (organisational) ...Read more
Author:Rossouw, R; Maritz, JohanDate:Dec 2023South Africa’s historical reliance on mineral resources has established thriving towns and settlements, sustaining households for decades. However, the decline in demand for these resources and mine closures pose significant threats to the ...Read more
Author:Lück-Vogel, Melanie; Mbolambi, Cikizwa; Van Niekerk, Lara; Rautenbach, K; Adams, JDate:Oct 2014Within the presented project, we are comparing ecosystem and land cover classifications for the Greater St Lucia region derived from multispectral RapidEye (5m resolution), WorldView-2 (2m resolution), SPOT-6 (5.55m resolution) data with and ...Read more
Author:Abu El-Magd, SA; Taha, TH; Pienaar, Harrison H; Breil, P; Amer, RA; Namour, PHDate:Apr 2021The Cd, Cr, Cu, Ni, and Pb concentrations in the sediments of Lake Mariout were measured and estimated by statistical approaches using the contamination factor (CF), pollution load index (PLI), geo-accumulation index (Igeo), Nemerow index ...Read more
Author:Gush, Mark BDate:2010This chapter provides a methodology for assessing the hydrological impacts of tree-based bioenergy feedstock. Based on experience gained in South Africa, it discusses the tasks required to reach an understanding of the likely water resource ...Read more
Author:Gangire, Y; Da Veiga, A; Herselman, Martha EDate:Oct 2021This paper outlines the development of a validated questionnaire for assessing information security behaviour. The purpose of this paper is to present data from the questionnaire validation process and the quantitative study results.Read more
Author:Van Deventer, Heidi; Cho, Moses ADate:Jul 2014The decanting of acid mine drainage (AMD) from the Western Basin on the Witwatersrand in late 2010 raised concerns about AMD risks in other gold, coal and copper mining areas of South Africa. Field spectroscopy and the use of vegetation indices ...Read more
Author:Von Maltitz, Graham P; Stafford, William HLDate:2011Sustainable biofuel production should provide opportunities for sub-Saharan African countries and their inhabitants, especially in impoverished rural areas. Biofuel feedstock production has the potential to bring job opportunities and earnings, ...Read more
Author:Pillay, DL; Sebake, MDDate:Nov 2008The significant land-use change in South African metropolitan areas, due to urbanization, created challenges of spatial development planning, infrastructure and service provision. This paper outlines the change detection analysis method applied ...Read more
Author:Lück-Vogel, MelanieDate:Oct 2019In South Africa, about 40% of the people are living within 60km of the Oceans' coasts, and approximately 60% of the South African economy depends on coastal natural resources and trade infrastructure such as ports. These figures highlight the ...Read more
Author:Wattrus, MC; Biffi, M; Pretorius, Cecilia J; Jacobs, DDate:Sep 2016Fuel, engine and after-treatment technologies are powerful levers to reduce diesel particulate matter emissions, however these benefits can only be guaranteed through routine maintenance and equipment monitoring. Portable emissions measurement ...Read more
Author:Pretorius, Cecilia J; Teleka, RuthDate:Jul 2017Cementitious grout support packs are usually assessed for their strength and durability from a safety perspective. Formulations of these packs range from cement mixed with water to resin-based formulations. Over time, these packs start to ...Read more
Author:Gibberd, Jeremy TDate:Oct 2014Measuring sustainability of building materials is complex. Despite this a wide range of different methodologies and systems have been developed. Most of these focus on environmental issues and are based on Life Cycle Assessment (LCA), or ...Read more
Author:Hart-Davis, MG; Backeberg, Bjorn-Christoph; Halo, I; Van Sebille, E; Johannessen, JADate:Oct 2018In this study, we assess the accuracy of a combined geostrophic and Ekman current product (GlobCurrent) that estimates ocean currents at 15m depth, by coupling it to a synthetic particle tracking tool and comparing the virtual trajectories ...Read more