Author:Scholes, RJ; Gill, MJ; Costello, MJ; Sarantakos, G; Walters, MicheleDate:2017It became apparent a few decades ago that biodiversity is declining worldwide at nearly unprecedented rates. This poses ethical and self-interested challenges to people, and has triggered renewed efforts to understand the status and trends ...Read more
Author:Edwards, ADate:Apr 2012The aims of this study is to evaluate the prevalence of workplace stress among mineworkers in South Africa; to identify mineworkers that are at risk of workplace stress and to evaluate the use of translated self-report questionnaires and ...Read more
Author:Funke, Nicola S; Nortje, KarenDate:31 Mar 2013The Upper Olifants Key Stakeholder Workshop took place at the CSIR Knowledge Commons on 26 February 2013. The workshop participants included representatives from national government, provincial government, local government, mining, industry, ...Read more
Author:York, GDate:Mar 2000After a mini-survey on the structure and content of the workshops, it was decided that a overhead/electronic presentation of the engineering rationale / principles established in SIMRAC project GAP334 should be presented in conjunction with ...Read more
Author:Wall, K; Clinton, DD; Sanio, MR; Botha, D; Cleland, A; Negussey, D; Lewis, SDate:Apr 2013The Standing Committee on Engineering Capacity Building of the World Federation of Engineering Organisations in October 2010 launched the first edition of a guidebook setting out its understanding of the challenges and complexities facing the ...Read more
Author:Burke, Ivan D; Van Heerden, Renier PDate:Oct 2017Data breaches are becoming more common and numerous every day, where huge amount of data (corporate and personal) are leaked more frequently than ever. Corporate responses to data breaches are insufficient, when commonly remediation is minimal. ...Read more
Author:Maistry, Nattele; Schutz, Robert A; Cox, EttienneDate:Nov 2017Polluted or broken insulators and faulty connections on power lines induce corona and thermal (heat) radiation. The corona and heat build-up causes long term degradation of the high voltage electrical components, which leads to voltage drops, ...Read more
Author:Swanepoel, H; Oelofse, Suzanna HH; Schubert, M; Sehaswana, DDate:Oct 2012Developing a waste information baseline for South Africa, without doing primary data collection, proved to be an enormous task. The project team had to ensure that all available data, whether being reported or not, were collected. This process ...Read more
Author:Muswema, Aubrey PDate:Oct 2012Small business, including small, medium and micro-sized enterprises (SMMEs), is seen as the corner stone of economic development in South Africa, with reported contributions of up to 42% to the Gross Domestic Product (GDP). The South African ...Read more
Author:Muswema, Aubrey PDate:Oct 2012Integrated Waste Management Planning (IWMP) was recognised as a short-term strategy initiative for the public and private sector in the National Waste Management Strategy as far back as 1999 (DEAT, 1999). Ten years later, through the Waste ...Read more
Author:Vincent, K; Cull, T; Archer, Emma RM; Awiti, ADate:Aug 2012Increased public awareness, and the concomitant growth in political commitment to mitigation and adaptation, has made the need for accurate and relevant communication of scientific information on climate change more pressing (Fischoff, 2011). ...Read more
Author:Stafford, William HLDate:Jan 2020The adequate collection and disposal of municipal waste remains a challenge in most African town and cities. Both wastewater (i.e., sewage) and solid waste [i.e., municipal solid waste (MSW)] pose health and environmental risks as a direct ...Read more
Author:Grobler, TL; Van Zyl, AJ; Olivier, JC; Kleynhans, W; Salmon, BP; Penzhorn, WTDate:Jan 2012In this paper we reviewed Wu’s algorithm and introduced it as a cryptanalysis technique. This study reveals that when Wu’s algorithm is used for cryptanalysis it simplifies. This is true because Wu’s algorithm has to be applied to binary ...Read more
Author:Smit, JC; Cilliers, Jacques E; Baker, CJ; Hanekom, JJDate:May 2008Radar measurements of a radar calibration sphere test target suspended in sea surface multipath propagation conditions are reported. Wideband measurements together with high range resolution (HRR) processing were employed to resolve the direct ...Read more
Author:Muchavi, Noluntu S; Bam, L; De Beer, FC; Chikosha, Silethelwe; Machaka, RonaldDate:Oct 2016Parts manufactured through power metallurgy (PM) typically contain pores that can be detrimental to the final mechanical properties. This paper explores the merits of 3D X-ray computed tomography over traditional microscopy for the characterization ...Read more
Author:Barnier, V; Heintz, O; Roberts, DE; Oltra, R; Costil, SDate:Apr 2006During laser cleaning of aluminium in ambient atmosphere, modifications of the metal surface can be induced by transient thermal effects. This work aims to characterize the modification of the aluminium oxide layer on pure aluminium for a ...Read more
Author:Bolokang, AS; Phasha, MJ; Oliphant, C; Motaung, DDate:Jan 2011In the current study, results of the milled and sintered V, W, C, Co powders are presented. Analytical techniques such as SEM equipped with EDS and XRD were used to study microstructure and phase evolution, respectively. In addition to B1 ...Read more
Author:Moloantoa, JR; Rammutla, KE; Mosuang, TE; Erasmus, RM; Hillie, KTDate:Jul 2011Au and Pt doped TiO2 nanocrystlas were prepared using the sol gel method. Diffuse Reflectance Spectroscopy (DRS) was used to study the characteristics of these precious metals and X-ray diffraction (XRD) with calculated lattice parameters was ...Read more
Author:Sefara, Tshephisho J; Modupe, AbiodunDate:Nov 2019The impressive improvement in performance obtained using neural networks for automatic speech recognition (ASR) have motivated the application of neural networks to other speech technologies such as speaker, emotion, language, and gender ...Read more
Author:Wright, CDate:2009This article asks just how harmful are our solar UV rays? It explains what previous researches tell us about how much UV radiation our children are likely to receive and what are the health risks.Read more