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
Author:Von Maltitz, Graham P; Brent, ADate:Nov 2008Biofuels have been promoted as an environmentally-sustainable solution to the global energy crisis, and a way to counterbalance global increases in CO2. The reality is more complex; under some circumstances biofuels can be a major environmental ...Read more
Author:Gibberd, Jeremy TDate:Oct 2011This paper discusses how the built environment can support sustainable development. It identifies the key characteristics of built environment that can be used to support sustainable development and shows how this can be developed into a set ...Read more
Author:Turpin, M; Alexander, T; Phahlamohlaka, Letlibe JDate:2013This paper addresses the challenge of assessing an ICT for development (ICT4D) project’s contribution to the socio-economic development of the broader community where it is implemented. It argues for using a systems approach to deal with this ...Read more
Author:Botai, OJ; Combrinck, WL; Sivakumar, VDate:Sep 2009Recovering geodetic parameters such as tropospheric delay and geodetic site positions and monitoring their variations in time has important applications for studying the processes of the dynamic earth. Geodetic position time series exhibit ...Read more
Author:Masemola, Cecilia R; Cho, Moses A; Ramoelo, AbelDate:Aug 2019The tree Acacia mearnsii is native to south-eastern Australia but has become an aggressive invader in many countries. In South Africa, it is a significant threat to the conservation of biomes. Detecting and mapping its early invasion is ...Read more
Author:Mathibe, Motshedisi; Mochenje, Tonderai; Masonta, Moshe TDate:Dec 2021As the Coronavirus disease (COVID-19) pandemic changed how people and business interact, its impact severely impacted the global economy. The government imposed heavy lockdown regulations further damaged an already struggling informal sector ...Read more
Author:Wessels, Konrad J; Prince, SD; Frost, PE; Van Zyl, DDate:15 May 2004There is a pressing need for an objective, repeatable, systematic and spatially explicit measure of land degradation. In northeastern South Africa, there are large areas of the former homelands that are widely regarded as degraded. A time-series ...Read more
Author:Ouma, S; Herselman, Martha E; De la Harper, R; VanGruen, DDate:Sep 2010There is a lack of documentation within the healthcare sector that depicts the context of the services that are currently provided within the developing world in hospitals. This has led to a mass failure of healthcare projects that are ...Read more
Author:Ayeni, AO; Kapangaziwiri, Evison; Soneye, ASO; Engelbrecht, FADate:Dec 2015Understanding the relative impact of land use, land cover and climate change (LULCC) on basin runoff is necessary in assessing basin water stress. This assessment requires long-term observed rainfall time series and land-use/land-cover (LULC) ...Read more
Author:Ayeni, AO; Kapangaziwiri, Evison; Soneye, ASO; Engelbrecht, FADate:Dec 2014Understanding the relative impact of land use, land cover and climate change (LULCC) on basin runoff is necessary in assessing basin water stress. This assessment requires long-term observed rainfall time series and land-use/land-cover (LULC) ...Read more