Author:Van van der Westhuizen, Johan C; Stander, A; Riley, DL; Panayides, Jenny-LeeDate:Mar 2022Alzheimer's disease is the most common neurodegenerative disease and currently poses a significant socioeconomic problem. This study describes the uses of computer-aided drug discovery techniques to identify novel inhibitors of acetylcholinesterase, ...Read more
Author:Govender, Nicolin; Rajamani, RK; Kok, S; Wilke, DNDate:Aug 2015The Discrete Element Method (DEM) simulation of charge motion in ball, semi autogenous (SAG) and autogenous mills has advanced to a stage where the effects of lifter design, power draft and product size can be evaluated with sufficient accuracy ...Read more
Author:Ngcobo, Sandile; Bell, TebohoDate:Feb 2016In this paper, we experimentally demonstrate novel method of generating discrete excitation of on-demand Lagaurre-Gaussian (LG) mode pulses, in a diode pumped solid-state digital laser. The digital laser comprises of an intra-cavity spatial ...Read more
Author:Klerck, PA; Sellers, EJ; Owen, DRJDate:2004A method for modelling discrete fracture in geomaterials under tensile and compressive stress fields has been developed based on a Mohr-Coulomb failure surface in compression and three independent anisotropic rotating crack models in tension. ...Read more
Author:Olwal, TO; Van Wyk, MA; Van Wyk, BJDate:2009In this paper the authors present a soft timing phase estimation (STPE) method for wireless mobile receivers operating in low signal to noise ratios (SNRs). Discrete Polyphase Matched (DPM) filters, a Log-maximum a posterior probability (MAP) ...Read more
Author:Zawaira, A; Pooran, A; Barichievy, S; Chopera, DDate:Sep 2011A number of molecular biology techniques are available to generate variants from a particular start gene for eventual protein expression. The authors discuss the basic principles of these methods in a repertoire that may be used to achieve ...Read more
Author:Hobbs, PJDate:Dec 2015The water resources downstream of the West Rand Gold Field (a.k.a. the Western Basin) have been the subject of considerable interest and discussion in both the media (e.g. Béga, 2010; 2012a; 2012b; 2013; Groenewald, 2010; Jordan, 2015; Kings, ...Read more
Author:Solsona, FDate:1990This guide will present some disinfection systems, which will be useful in supporting disinfection programmes. The description of the different systems will provide a guideline for the selection of equipment base on balancing the simplicity ...Read more
Author:Raw, JL; Van der Stocken, T; Carroll, D; Harris, LR; Rajkaran, A; Van Niekerk, Lara; Adams, JBDate:Nov 2022Latitudinal range limits for mangroves on high-energy, wave-dominated coasts are controlled by geomorphological features and estuarine dynamics. Mangroves reach a southern global range limit along the South African coastline, but the distribution ...Read more
Author:Okoro, AM; Machaka, Ronald; Lephuthing, SS; Awotunde, MA; Oke, SR; Falodun, OE; Olubambi, PADate:May 2019The quest to achieve uniform dispersion of multiwalled carbon nanotubes (MWCNT) in metal matrices without compromising the structural integrity of the nanotubes during the production of metal matrix composites have been a lingering challenge ...Read more
Author:Paige-Green, PDate:Nov 2008Dispersive, erodible and slaking soils are prevalent over wide areas of South Africa. Each of these materials increases the cost of construction, but dispersive soils are likely to lead to far more serious problems, particularly in dam ...Read more
Author:Schmitz, PDate:May 2017Every five years, the South African population goes to the polls to elect local government councilors. These elections are fought along party lines, however, independent candidates are also allowed to participate. This paper looks at the ...Read more
Author:Brooks, GRDate:Apr 1977This survey of current practice relating to the disposal and recycling of waste paper was commissioned by the Committee for Solid Wastes, through the National Scientific Programmes Unit of the CSIR. It was undertaken by Louis Heyl and Associates, ...Read more
Author:Ashton, PJDate:2007Recent years have been marked by a growing awareness that the world’s freshwater supplies represent a scarce and critically important resource that is also extremely vulnerable to human activities (Biswas 1993; Delli Priscoli 1998). Indeed, ...Read more
Author:Mudzanani, Khuthadzo; Ejekwu, Olayile; Daramola, MODate:May 2019To improve the economical use of lignocellulosic bio-waste (e.g. corn cob), an efficient pre-treatment route is required to make its content accessible to enzymatic hydrolysis to produce bio-products such as biofuels and bio-chemicals. The ...Read more
Author:Tywabi, Zikhona; Deenadayalu, Nirmala; Sithole, Bishop BDate:Mar 2017The paper presents a method of obtaining wood cellulose by dissolution of eucalyptus sawdust in a mixture of ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate [Emim][OAc] together with co-solvents; dimethylformamide (DMF) and dimethylsulphoxide ...Read more
Author:Balkissoon, Simiksha; Andrew, Jerome E; Sithole, Bishop BDate:Mar 2022Studies have elucidated that the trends in dissolving pulp markets worldwide are growing consistently and rapidly. In 2018, the global revenue generated from dissolving pulp amounted to $9.3 billion, this being a 6.50% increase from the ...Read more
Author:Makoni, EN; Meiklejohn, CL; Coetzee, MJDate:2008There is a renaissance of regions in the economic geography of globalisation. Sub-national regions and supra-national regions have become increasingly important and regions have become the critical foundations of development processes. National ...Read more