Author:Nkosi, SS; Lafane, S; Masina, Bathusile N; Ndwandwe, OMDate:Dec 2016The magnetic properties of paramagnetic/weakly ferromagnetic films are strongly affected by the proximity to materials that undergo a metal to insulator phase transition. Here, we show that under the deposition conditions associated with ...Read more
Author:Deksissa, T; Ashton, PJ; Vanrolleghem, PADate:Mar 2003Using a simple conceptual dynamic river water quality model, the effects of different basin-wide water quality management options on downstream water quality improvements in a semi-arid river, the Crocodile River (South Africa) were investigated. ...Read more
Author:Litvin, Ihar; King, Gary RDate:Aug 2018We propose the technique for a controllable manipulation of the transverse intensity distribution of an output beam by the temporal adjustment of a transverse gain profile in a laser amplifier. It was created by an independent manipulation ...Read more
Author:Dudley, Angela L; Schulze, C; Roux, FS; Duparré, M; Forbes, ADate:Jun 2013In this work we present a mechanism for generating superpositions of non-canonical, higherorder Bessel beams, which are characterized by the anisotropy of the optical vortex on the propagation axis, known as the morphology parameter. We ...Read more
Author:Aderibigbe, BA; Sadiku, ER; Jayaramudu, J; Ray, SSDate:Oct 2014The potential of gum acacia containing hydrogels as controlled dual-drug delivery systems for antiprotozoal agents was investigated. 4-Aminoquinoline analog and curcumin were selected as model drugs because they exhibit antiprotozoal activity. ...Read more
Author:Van Schoor, Michael; Nienaber, WC; Marais-Werner, ADate:Jun 2017A controlled three-dimensional ground penetrating radar monitoring study over simulated clandestine graves was conducted near Pretoria, South Africa, in which the detectability of graves as a function of post-burial interval was assessed, as ...Read more
Author:Mamushiane, Lusani; Mwangama, J; Lysko, Albert ADate:Mar 2021Software Defined Networking (SDN) has emerged as a promising solution to revolutionize network deployment, operations and economic growth. This paradigm aims to address management and configuration complexities in legacy networks so as to ...Read more
Author:Sithole, Bishop B; Doucette, M; Fiolet, RDate:Jun 2015Troubleshooting of scale deposits and defects in paper samples showed that the problem was caused by barium sulphate and calcium sulphate scales. However, it was ascertained that barium sulphate was more of a concern than calcium sulphate as ...Read more
Author:Dudley, Angela L; Vasilyeu, R; Belyi, V; Khilo, N; Ropot, P; Forbes, ADate:Sep 2011In this work we investigate the structure of nondiffracting speckle fields, both experimentally and theoretically. We are able to produce very good agreement between the experimentally recorded and theoretically calculated fields by using ...Read more
Author:Oelofse, Suzanna HHDate:20 Nov 2009This paper presents the information concerning the definition of waste. Discussing the importance of the clear definition, ongoing debates, broad definition of waste, problems with the broad definition, interpretation, current waste management ...Read more
Author:House, JI; Archer, S; Breshears, DD; Scholes, RJDate:Nov 2003The article aims to identify approaches to improve our understanding of, and predictive capability for, mixed tree-grass systems. Elucidation of the interactions, dynamics and determinants, and identification of robust generalizations that ...Read more
Author:Wellington, Kevin W; Ooi, HC; Benner, SADate:Apr 2009The syntheses of N,N'-dibenzyl-2,4-diaminopyrimidine-2'-deoxyribonucleoside and 1-methyl-2'- deoxypseudoisocytidine via Heck coupling are described. A survey of the attempts to use the Heck coupling to synthesize N,N'-dibenzyl-2,4-diaminopy ...Read more
Author:Motshekga, S; Kesavan Pillai, Sreejarani; Ray, SSDate:Mar 2011Carbon nanotubes decorated with SnO2 nanoparticles were prepared by conventional and microwave-assisted wet impregnation. The composites were thoroughly characterized by X-ray diffraction, Raman spectroscopy, BET-surface area measurement, ...Read more
Author:Das, Sonali; Gupta, R; Kaya, PADate:2010This paper analyzes whether the Law of One Price (LOOP) holds in the housing market of five metropolitan areas of South Africa, namely Cape Town, Durban, Greater Johannesburg, Port Elizabeth/Uitenhage and Pretoria. The authors test the existence ...Read more
Author:Tugizimana, F; Steenkamp, Paul A; Piater, LA; Dubery, IADate:Nov 2016Untargeted metabolomic studies generate information-rich, high-dimensional, and complex datasets that remain challenging to handle and fully exploit. Despite the remarkable progress in the development of tools and algorithms, the “exhaustive” ...Read morecb
Author:De Beer, Morris; Maree, JP; Liebenberg, L; Doucet, FJDate:Nov 2014The production of elemental sulphur and calcium carbonate (CaCO(sub3)) from gypsum waste can be achieved by thermally reducing the waste into calcium sulphide (CaS), which is then subjected to a direct aqueous carbonation step for the generation ...Read more
Author:Palaniyandy, Nithyadharseni; Nkosi, FP; Raju, Kumar; Ozoemena, KIDate:Jan 2019A simple and versatile approach has been implemented for the preparation of some manganese oxide (MnxOy)-based lithium-ion battery anode materials from low-cost electrolytic manganese dioxide (EMD). Depending on the additive, calcination ...Read more
Author:Van Zyl, WH; Lodolo, EJ; Gericke, MDate:Apr 1993A simple method was developed for the conversion of homothallic Saccharomyces cerevisiae yeast strains to heterothallism through HO gene disruption. An integrative ho=neo disrupted allele was constructed by cloning a dominant selectable marker, ...Read more