Author:Molemans, M; Van Leth, F; McKelly, David H; Wood, R; Hermans, SDate:Nov 2022Background: Individuals with a history of tuberculosis (TB) disease are at higher risk of developing a subsequent episode than those without. Considering the role of social and environmental factors in tuberculosis, we assessed neighbourhood-level ...Read more
Author:Landman, KDate:Aug 2006This paper is concerned with the relationship between peace and place. It explores how the physical space facilitates or negates the establishment of peace through the manifestation of a specific function and form, as well as its meaning for ...Read more
Author:Manzi, MSD; Hein, KAA; King, N; Durrheim, RJDate:Apr 2013First-order scale structures in the West Wits Line and West Rand goldfields of the Witwatersrand Basin (South Africa) were mapped using the high-resolution 3D reflection seismic method. Structural models constrain the magnitude of displacement ...Read more
Author:Oranje, M; Van Huyssteen, ElsonaDate:Dec 2011In this article, it is argued that South Africa’s post-1994 dream is marked by a tension between servicing and transformation – mutually supporting, but potentially also divergent set of intentions, processes and outcomes. Towards the end of ...Read more
Author:Bischof-Niemz, T; Milazi, DDate:2015Due to drastically reduced prices for Photovoltaic (PV) systems and significantly increased electricity tariffs in the last five years, embedded PV generators are now attractive for many electricity customers in South Africa as a supplement ...Read more
Author:Lindeque, MDate:Jan 2013Is it possible to develop a building that uses a net zero amount of water? In recent years it has become evident that it is possible to have buildings that use a net zero amount of electricity. This is possible when the building is taken off ...Read more
Author:Gibberd, Jeremy TDate:Dec 2021In many areas of the world, climate change is leading to higher temperatures and water scarcity. At the same time, rapid urbanisation is increasing the demand for existing water resources. As a result in many drought-stricken areas, water ...Read more
Author:Van Wyk, Llewellyn VDate:Jan 2013In its experimental work on research and development of innovative technologies for low income housing on the Innovation Site on the CSIR campus in Pretoria, the Building Science and Technology (BST) competence area identified a number of ...Read more
Author:Sweeney, M; Irwin, Barry VWDate:Sep 2017As networks have grown, so has the data available for monitoring and security purposes. This increase in volume has raised significant challenges for administrators in terms of how to identify threats in amongst the large volumes of network ...Read more
Author:Senekal, FP; Vorster, JSDate:Jul 2007A large computer network such as the Internet contains millions of computers, services and users, interconnected in a complicated and ever changing web. This article provides an introduction to network mapping and usage determination – the ...Read more
Author:Masonta, Moshe T; Kola, LM; Lysko, Albert A; Pieterse, L; Velempini, MDate:Sep 2015Television white spaces (TVWS) refers to vacant channels in the ultra-high frequency (UHF) band between 470 and 690 MHz assigned for television broadcast and can be used opportunistically by secondary users (SUs). Research has shown that when ...Read more
Author:Aron, FO; Olwal, TO; Kurien, A; Hamam, YDate:Sep 2008Wireless mesh networks (WMNs) is becoming a promising new technology for extending coverage to farflung rural areas. This it achieves by linking the various wireless LANS (WLANs) in distant locations thus providing a vital mode complimentary ...Read more
Author:Awoyemi, BS; Alfa, Attahiru S; Maharaj, BTDate:Sep 2019This paper investigates highly efficient network restoration models for wireless sensor networks (WSNs) to be deployed for next-generation (xG) applications. The developed network restoration models are designed with two main goals in mind. ...Read more
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:Pauck, WJ; Venditti, R; Pocock, J; Andrew, JDate:2014The removal of ink from recovered papers by flotation deinking is considered to be the “heart” of the paper recycling process. Attempts to model the deinking flotation process from first principles has resulted in complex and not readily ...Read more
Author:Louw, Johannes ADate:Dec 2019Recent work in sequence-to-sequence neural networks with attention mechanisms, such as the Tacotron 2 and DCTTS architectures, have brought on substantial naturalness improvements in synthesised speech. These architectures require at least ...Read more
Author:Masindi, Vhahangwele; Gitari, WM; Tutu, H; De Beer, Morris; Nekhwevha, NDate:Aug 2014This paper evaluates the potential application of amorphous magnesite for remediation of Acid Mine Drainage (AMD). Magnesite was mixed with simulated AMD at specific S/L ratios and agitated in an orbital shaker and its capacity to remove ...Read more
Author:Maree, JP; Du Plessis, PDate:1994Traditionally, Lime is used for the neutralization of acidic effluents. Calcium carbonate should be considered as an alternative because of considerations such as lower cost, low solubility at pH values greater than 7 and simple dosing system ...Read more
Author:Mufhandu, Hazel T; Madiga, M; Gray, E; Rotherham, L; Khoza, T; Morris, L; Khati, MDate:Jul 2009This paper present a chemically synthesised derivative of the B40 parental aptamer, called UCLA1 (Cohen et al., 2008), was used for neutralization of endemic subtype C clinical isolates of HIV-1 from adult and paediatric patients and subtype ...Read more
Author:De Beer, FC; Coetzer, M; Fendeis, D; Silva, ADCDate:Oct 2004A few nondestructive examination (NDE) techniques are extensively being used worldwide to investigate aircraft structures for all types of defects. The detection of corrosion and eliminations, which are believed to be the major initiators of ...Read more