Author:Geldenhuys, CJDate:1985Annotated references to 519 publications are presented, together with keyword listings and keyword, regional, place name and taxonomic indices. This bibliography forms part of the first phase of the activities of the Forest Biome Task Group.Read more
Author:Endrody-Younga, SDate:Sep 1982A study of the composition, biology and impact of the arthropod fauna associated with dung and other decaying matter was carried out on the Nylsvley Nature Reserve and on a neighbouring farm from June 1975 to July 1976. A total of 100 638 ...Read more
Author:Jacobsen, NHGDate:Dec 1977A survey of the distribution, status and general ecology of amphibians, reptiles and mammals was undertaken on the Nylsvley Nature Reserve, Transvaal from mid-1974 to mid-1977 as part of the South African Savanna Ecosystem Project. A total ...Read more
Author:Bischof-Niemz, TDate:Dec 2016Annual new-build limits for solar PV and wind are constant in absolute terms but decrease relative to the size of the power system. Today: Both leading and follower countries install much more new solar PV capacity per year than what South ...Read more
Author:Dye, P; Clulow, A; Prinsloo, Eric; Naiken, Vivek; Weiersbye, IDate:Aug 2016Several hundred mine tailings dams occur in the Witwatersrand Basin Goldfields in central South Africa. Seepage of acid mine drainage (AMD) from these unlined structures is widespread, and a variety of contaminants is released into soil and ...Read more
Author:Shackleton, CMDate:14 Dec 1998The annual production of deadwood available for harvesting by hand was determined from 28 permanent plots over three years for three protected areas along a rainfall gradient. Annual production varied considerably for individual plots, but ...Read more
Author:Schoonees, JSDate:May 2000The annual variation in the net long shore sediment transport rates at three South African and at one North African site is investigated. The net rates at these sites, given in the first table, showed large variations. It was found that ...Read more
Author:Chauke, L; Möller, H; Curle, UA; Govender, GDate:Jul 2013Anodising of aluminium alloys can be used to improve corrosion resistance during application or it can be simply for decorative purposes. In this research, anodising of 6111 (Cu containing) and 6082 (without Cu) alloys produced by Rheo-High ...Read more
Author:Moyo, Lumbidzani; Makhado, E; Ray, Suprakas SDate:Nov 2014Inherent physical properties and commercial availability makes poly(e-caprolactone) (PCL) very attractive as a potential substitute material for nondegradable polymers for commodity applications. However, a balance of toughness and stiffness ...Read more
Author:Roux, FSDate:Apr 2011Inhomogeneous optical vortex densities can be produced in stochastic optical fields by a combination of coherent and incoherent superposition of speckle fields. During subsequent propagation, the inhomogeneity in the vortex density decays ...Read more
Author:Mgabile, T; Msiza, IS; Dube, EDate:Oct 2012This manuscript presents a supervised machine learning approach in the identification of network attacks on a fingerprint biometric system. To reduce the problem of malicious acts on a biometric system, this manuscript proposes an intrusion ...Read more
Author:Boloka, Tlou J; Crafford, Gerhardus J; Mokuwe, Mamuku W; Van Eden, BeatriceDate:Jan 2021Most developing countries suffer from inadequate health care facilities and a lack of medical practitioners as most of them emigrate to developed countries. The outbreak of the COVID-19 pandemic has left these countries more vulnerable to ...Read more
Author:Ramjukadh, Carla-Louise; Silberbauer, M; Taljaard, SusanDate:Oct 2018The South African national water quality database (Water Management System) houses data records from several environmental monitoring programmes, including the National Chemical Monitoring Programme (NCMP). The NCMP comprises an extensive ...Read more
Author:Fedotov, I; Joubert, S; Marais, J; Shatalov, MDate:2006In this paper a model of an N-stepped bar with variable Cross-sections coupled with foundation by means of lumped masses and springs is studied. It is assumed that the process of vibrations in each section of the bar is described by a wave ...Read more
Author:Botes, FH; Leenen, Louise; De La Harpe, RDate:Jun 2017In the ashes of Moore’s Law, companies have to acclimatise to the vast increase of data flowing through their networks. Reports on information breaches and hackers claiming ransom for company data are rampant. We live in a world where data ...Read more
Author:Engelbrecht, FA; Ndarana, T; Morioka, Y; Behera, S; Thatcher, M; McGregor, JLDate:Sep 2015The impact of time-varying Antarctic stratospheric ozone on southern African summer climate variability is explored through atmospheric global circulation model (AGCM) sensitivity experiments. A control experiment following the design of the ...Read more
Author:Olwal, TO; Chuku, PN; Lysko, Albert ADate:Mar 2021Antennas are a critical component in any wireless link. The significance of their role continues to grow, together with the rise of machine-to-machine (M2M) communications and telecommunications starting to move from the fourth generation ...Read more
Author:Olwal, TO; Chuku, PN; Lysko, Albert ADate:Mar 2021Antennas are a critical component in any wireless link. The significance of their role continues to grow, together with the rise of machine-to-machine (M2M) communications and telecommunications starting to move from the fourth generation ...Read more
Author:Savage, WHDDate:1965During the past eighteen months discussions have been held with the Anthracite Producers Association on the desirability of altering and introducing a second and possibly a third grade.Read more