Author:Marais, Mario A; Vannini, SDate:May 2021A number of studies in Information and Communication Technologies for Development (ICT4D) focus on projects’ sustainability and resilience. Over the years, scholars have identified many elements to enable achievement of these goals. Nevertheless, ...Read more
Author:Rorke, DCS; Lekha, Prabashni S; Kana, GEB; Sithole, Bishop BDate:Jun 2021This study optimizes a novel surfactant-assisted green liquor dregs (GLD) pretreatment of paper mill sludge (PMS), both of which are wastes from the kraft pulping industry, using a combined Response Surface Methodology (RSM) design. Optimized ...Read more
Author:Kakonke, Grace; Tesfaye, Tamrat; Sithole, Bishop B; Ntunka, MDate:Feb 2021South Africa is the biggest chicken meat producer in Southern Africa and generates about 258 million kg of waste feathers. Although some of this waste is beneficiated into animal feed and fertiliser there are problems in adequate digestion ...Read more
Author:Makhari, A; Hawes, Nomashaka BN; Mturi, George AJ; Ojijo, Vincent ODate:Jul 2021Modifying bitumen is currently a common practice in South Africa. The asphalt pavement industry has seen an increase in use of different types of modifiers in an attempt to improve or extend the properties of bitumen. Common modifiers used ...Read more
Author:Ragoasha, Matsubu V; Maritz, J; Cooper, Antony KDate:Sep 2021A key challenge in rural South Africa is providing social facilities such as clinics. This is difficult due to the nature of settlement distributions, especially in traditional authority areas. Geospatial accessibility analysis can help find ...Read more
Author:Maritz, Johan; Mans, Gerbrand G; Ngidi, MawandiDate:Nov 2017Demography according to Matthews (2013, p. 271) is an inherently spatial science, that has not always been widely applied, yet it is critically important when spatial perspectives has to be developed that inform planning and investment ...Read more
Author:Wright, Jarrad G; Calitz, Joanne RDate:Jul 2021This presentation summarize the H1-2021 statistics: A difficult first half of 2021 as extensive loadshedding continued but record relative VRE contributions and diesel usage was recorded. By H1-2021 South Africa had 52.6 GW of wholesale/public ...Read more
Author:Green, Chéri A; Mans, Gerbrand G; Ngidi, Mawande; Sogoni, Zukisa; Martiz, JohanDate:Sep 2016In the search for greater equity, spatial justice and efficiency of service delivery, the concepts of central place, agglomeration, and accessibility, together with GIS principles of catchment analysis, were applied to develop service catchments ...Read more
Author:Blaauw, Ciara; Potgieter, Monique; Cilliers, Jacques EDate:Apr 2020Commercial off the shelf antennas make it possible to perform rapid initial system tests and proof of concepts experiments. This paper reports on the antenna performance of a cost effective commercial off the shelf printed Log-periodic antenna ...Read more
Author:Lekoadi, Paul M; Maledi, N; Tlotleng, Monnamme; Masina, Bathusile NDate:Feb 2020The investigation of microstructural and hardness properties of high-speed selective laser melted (SLM) produced Ti6Al4V coupons after various heat treatments. Heat treatment was performed in order to homogenize and improve the microstructure ...Read more
Author:Van Deventer, Heidi; Cho, Moses; Mutanga, ODate:Sep 2015Indigenous forests of South Africa occur in one of the smallest biomes covering less than 0.5% of the total surface area of the country. Regardless of the small and narrow extent of these forests, they offer a range of ecosystem services, ...Read more
Author:Kubjane, SM; Arthur, Nana KK; Masina, Bathusile N; Popoola, API; Pityana, Sisa LDate:Sep 2019Because of its low density, high corrosion resistance and high strength to weight ratio, titanium and its alloys are widely used in aerospace applications. As a result, the material is exposed to detrimental environment. An enhancement in ...Read more
Author:Sibisi, PN; Popoola, API; Arthur, Nana K; Pityana, Sisa L; Popoola, OMDate:Oct 2019Direct Metal Laser Deposition (DMLD) processes such as LENS are gaining ground in commercial manufacturing processes of functional end-products. This is attributed to this process being popularized as a sustainable technology with the potential ...Read more
Author:Lemley, DA; Lamberth, SJ; Manuel, W; Nunes, M; Rishworth, GM; Van Niekerk, Lara; Adams, JBDate:Jun 2021Increased nutrient loading associated with rapid population growth is the leading cause of deteriorating water quality in urbanized estuaries globally. Small estuaries are particularly sensitive to changes when connection with the marine ...Read more
Author:Burke, Ivan D; Motlhabi, Michael B; Netshiya, Rofhiwa; Pieterse, HeloiseDate:Feb 2021Recently, well-known and established South African organisations have experienced cyberattacks. South African Bank Risk Information Centre (SABRIC) confirmed in October 2019 that the industry had been hit by a wave of Distributed Denial of ...Read more
Author:Dlamini, Sifiso B; Turpin, MDate:Jul 2020South Africa has seen research and development (R&D) efforts in Information and Communication Technologies for Development (ICT4D) to provide rural schools with mobile technologies for improving the quality of teaching and learning. The ...Read more
Author:Rampersad, Ashiel; George, Theresa B; Mokoena, Refiloe; Mgangira, Martin B; Gräbe, PJDate:Jul 2018The contamination of railway ballast (referred to as ballast fouling) is commonly caused by ballast particle degradation, external debris fouling due to surface spillage and clay fouling due to subgrade pumping. Intrusion of these fines in ...Read more
Author:Adetunji, KE; Hofsajer, IM; Abu-Mahfouz, Adnan MI; Cheng, LDate:Jun 2021The integration of renewable energy and electric vehicles in smart grids aims to improve the grid network and reduce carbon emissions. In this regard, this study presents a new Energy Management Scheme (EMS) for the optimal charging and ...Read more
