Author:Ngobeni, Sipho J; Venter, H; Burke, Ivan DDate:Jun 2012Over the past decade, wireless mobile communication technology based on the IEEE 802.11 Wireless Local Area Networks (WLANs) has been adopted worldwide on a massive scale. However, as the number of wireless users has soared, so has the ...Read more
Author:Attia, H; Osman, Muhammad S; Johnson, DJ; Wright, C; Hilal, NDate:Dec 2017In the present study, theoretical and experimental investigations were carried out to examine the effect of changing the operating parameters of an air gap membrane distillation (AGMD) system on the performance of electrospun and commercial ...Read more
Author:Sellers, EJ; Klerck, PDate:Oct 2000A series of physical and numerical model tests were performed to investigate the behaviour of the rock surrounding circular excavations under high confining pressures. The aim was to provide information on the formation of fractures around ...Read more
Author:May, Siyasanga I; Pratt, Lawrence E; Roro, Kittessa T; Bokoro, PDate:Aug 2022This work focuses on modelling the power output of multiple PV technologies installed at the outdoor test facility of the Council for Scientific and Industrial Research (CSIR) in Pretoria. Extreme Gradient Boosting (XGB) and Artificial Neural ...Read more
Author:Engelbrecht, JP; Swanepoel, L; Zunckel, M; Chow, JC; Watson, JG; Egami, RTDate:30 Mar 2000D-grade (i.e. poor quality) coal is widely used for household cooking and heating purposes by lower-income urban communities in South Africa. The smoke from the combustion of coal has had a severe impact on the health of society in the townships ...Read more
Author:Hildyard, MW; Young, RPDate:03 Jan 2002The potential for large excavation-induced seismic events may be recognised, even if the timing of an event may be inherently unpredictable. In this case, modelling the wave propagation from a potential event could allow the dynamic motions ...Read more
Author:Lötter, D; Le Maitre, David CDate:Apr 2014Aspalathus linearis (Burm. f.) R. Dahlgren (rooibos) is endemic to the Fynbos Biome of South Africa, which is an internationally recognised biodiversity hotspot. Rooibos is both an invaluable wild resource as well as commercially cultivated ...Read more
Author:Ortmann, FG; Van Vuuren, JH; Van Dyk, FEDate:Apr 2006A description is provided of work performed as part of the fruit logistics infrastructure project commissioned by the South African Deciduous Fruit Producers’ Trust and coordinated by the South African Council for Scientific and Industrial ...Read more
Author:Martins, RS; Roberts, MJ; Lett, C; Chang, Nicolette; Moloney, CL; Camargo, MG; Vidal, EAGDate:Aug 2013Annual landings of chokka squid (Loligo reynaudii), an important fishing resource for South Africa, fluctuate greatly, and are believed to be related to recruitment success. The ‘Westward Transport Hypothesis’ (WTH) attributes recruitment ...Read more
Author:Jagarnath, M; Thambiran, Tirusha; Gebreslasie, MDate:Apr 2019Urbanization is one of the most significant and irreversible forms of land change, but we lack empirical evidence of these changes in the Global South. This is the first study to quantify past and explore future land change for the Durban ...Read more
Author:De Koning, CB; Rousseau, AL; Van Otterlo, WALDate:01 Jan 2003The importance of naphthalenes and naphthoquinones as bioactive agents and in structural and synthetic chemistry is discussed. How the synthetic chemist gains access to such compounds forms the subject of this review. The synthesis of ...Read more
Author:Ramoroka, TM; Masonta, Moshe T; Kliks, ADate:May 2016The role of cheap and easy access to various telecommunication facilities is crucial for further community development. Such an observation is of particular importance for the developing countries all over the world since reliable and open ...Read more
Author:Slinger, JH; Taljaard, Susan; Largier, JLDate:Sep 2017Many estuaries are under threat of reduced flows and consequent choking of the mouth by marine sands as more of their natural freshwater supply is abstracted for human use (Barton et al., 2008; Haines et al., 2006). Anticipated sea level rise, ...Read more
Author:Mittal, H; Kumar, V; Alhassan, SM; Ray, Suprakas SDate:Jul 2018In this work, an environmentally friendly gum ghatti-crosslinked-polyacrylamide (Gg-cl-PAAM) hydrogel was synthesized from gum ghatti (Gg) and acrylamide (AAM) using a microwave-assisted grafting technique, and tested for use in water ...Read more
Author:Loveday, Philip W; Rogers, CADate:Sep 1998A method for analyzing the effect of feedback control on the dynamics of piezoelectric resonators used in vibratory gyroscopes has been developed. This method can be used to determine the feasibility of replacing the traditional mechanical ...Read more
Author:Jafta, CJ; Roos, WD; Terblans, JJDate:Mar 2013It is reported that different crystal surface orientations yield different segregation fluxes. Although there were a few attempts to confirm these predictions experimentally, it is very difficult to compare data without making a few assumptions. ...Read more
Author:Salmon, BP; Kleynhans, Waldo; Olivier, JC; Van den Bergh, Frans; Wessels, Konrad JDate:May 2018Humans are transforming land cover at an ever-increasing rate. Accurate geographical maps on land cover, especially rural and urban settlements are essential to planning sustainable development. Time series extracted from MODerate resolution ...Read more
Author:Padayachee, J; Bright, G; Masekamela, IDate:Nov 2009The reconfigurable manufacturing system (RMS) paradigm encapsulates methodologies that enable manufacturing systems to cope effectively with market and product changes. This research presents the design and evaluation of modular reconfigurable ...Read more