Author:Van Wilgen, BW; Le Maitre, David C; Cowling, RMDate:Sep 1998In this paper, South Africa’s working for water programme is described. The programme maximizes an ecosystem services (the delivery of water), enhances sustainability by eliminating invading alien plants, and promotes social equity through ...Read more
Author:Reyers, B; O'Farrell, Patrick J; Cowling, RM; Egoh, Benis N; Le Maitre, David C; Vlok, JHJDate:2009Land-cover change has been identified as one of the most important drivers of change in ecosystems and their services. However, information on the consequences of land cover change for ecosystem services and human well-being at local scales ...Read more
Author:Walters, Chavon R; Pool, EJ; Somerset, VSDate:Aug 2014There has been extensive growth in nanoscale technology in the last few decades to such a degree that nanomaterials (NMs) have become a constituent in a wide range of commercial and domestic products. With NMs already in use in several consumer ...Read more
Author:Oberholster, Paul J; Genthe, Bettina; Hobbs, P; Cheng, Po-Hsun; De Klerk, Arno R; Botha, A-MDate:May 2013Streams impacted by acid mine drainage (AMD) typically present water exhibiting low pH and high metal concentrations. These factors result in the environmental degradation of watercourses. The objective of this study was to develop and evaluate ...Read more
Author:Molokomme, DN; Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MIDate:Aug 2022The rapid development of new information and communication technologies (ICTs) and the deployment of advanced Internet of Things (IoT)-based devices has led to the study and implementation of edge computing technologies in smart grid (SG) ...Read more
Author:Manoto, Sello LDate:Jan 2020Osteoarthritis is a degenerative joint disease that is difficult to manage and a major cause of disability in the elderly population. The use of ozone for treatment of knee osteoarthritis (KOA) is controversial and of interest. Although the ...Read more
Author:Moyo, HPM; Dube, SDate:May 2010The objective of the study was to quantify the water table fluctuations in the Tsomo valley due to the presence of Acacia mearnsii.Read more
Author:Roro, Kittessa T; Mwakikunga, Bonex W; Tile, N; Yalisi, B; Forbes, ADate:May 2012Varying amounts of dispersed multiwalled carbon nanotubes in NiO have been used to develop composites that absorb the solar energy very well but lose very little through emission. Determination of absorptance, asol, and emissivity, ether, ...Read more
Author:Crookes, DJ; Blignaut, JN; Le Maitre, David CDate:Nov 2020We developed a two-biome (grasslands and fynbos) system dynamics model simulating invasions of three invasive alien plant species – black wattle (Acacia mearnsii) and two pine species (Pinus patula and Pinus pinaster) – and some of the ...Read more
Author:Muller, T; Ramashia, TA; Motaung, David E; Cummings, F; Malgas, G; Oliphant, C; Arendse, CDate:Apr 2016Concerted efforts need to be undertaken to overcome limited efficiencies and instability issues in order to ensure a niche for organic photovoltaics (OPVs) in the PV market. Recent improvements on tandem structures aside, in order to achieve ...Read more
Author:Menya, E; Olupot, PW; Storz, H; Lubwama, M; Kiros, Y; Mathew, Maya JDate:2020Thermal behavior and chemical properties of selected raw and NaOH-pretreated rice husk varieties were investigated. NaOH-pretreatment process involved soaking 5 g rice husk samples in 40 mL of 2%w/v NaOH, shaking (400 rpm) and heating (50 °C) ...Read more
Author:Teffo, ML; Nyakane, NE; Seerane, M; Shongwe, MB; Machaka, RolandDate:Feb 2021The allotropic behavior of titanium is affected by many factors such as processing temperature and alloying elements. Using processing method with parameters that enhaces properties of the resulting alloy is imperative. In this study, CP-Ti, ...Read more
Author:John, Maya J; Tlili, R; Anandjiwala, RD; Boudenne, A; Ibos, LDate:Mar 2012The study on heat transport in composites is of fundamental importance in engineering design and for tailoring thermal and mechanical behaviour of materials. In this study, the thermal conductivity and thermal diffusivity of flax reinforced ...Read more
Author:Ogunniran, ES; Sadiku, R; Ray, Suprakas S; Luruli, NDate:Aug 2011A composite of boehmite alumina nanoparticles and a PP/PA12 blend is prepared. WAXD and SEM suggest that a low filler loading enhances the coalescence of PA12, whereas a higher loading reverses the situation. DSC, DMA and TGA reveal that the ...Read more
Author:Bolokang, S; Banganayi, C; Pasha, MDate:2009In the current study, the amount of carbon and the effects of milling parameters in production of tungsten-carbide (WC) powder were evaluated. Mechanical alloying (MA) of elemental W and C powders at different carbon-rich and carbon-deficient ...Read more
Author:Munyati, C; Economon, EB; Malahlela, OEDate:Jul 2013The proliferation of woody plant species on savanna rangelands (i.e. bush encroachment) degrades rangeland quality, thereby threatening the biodiversity conservation effort as well as pastoral farming. Hyperspectral remote sensing offers ...Read more
Author:Jacob John, Maya; Francis, B; Varughese, KT; Thomas, SDate:Feb 2008The effects of chemical modification of fiber surface in sisal–oil palm reinforced natural rubber green composites have been studied. Composites were prepared using fibers treated with varying concentrations of sodium hydroxide solution and ...Read more
Author:Naidu, Darrel S; Mathew, Maya JDate:Oct 2020In this study, xylan–alginate-based films were reinforced with nanoclays (bentonite or halloysite) by the solvent casting technique. The effect of the nanoclay loadings (1–5 wt %) on various properties—mechanical, optical, thermal, solubility, ...Read more