Author:Shozi, Nobubele A; Mtsweni, Jabu SDate:Mar 2016Big data is a term that describes data of huge volumes, variable speeds, and different structures. Even though the rise of big data can yield positives, the nature of big data poses challenges as capturing, processing and storing becomes ...Read more
Author:Shozi, Nobubele A; Mtsweni, Jabu SDate:Jun 2017Social media sites have provided us with the ability to share information about our daily activities. However, users do not understand the implications of sharing their personal data on social media sites. Individuals on these social sites ...Read more
Author:Mdakane, Lizwe W; Meyer, Rory GV; Sibolla, Bolelang HDate:Aug 2020Oil spill over the sea surface formed because of oil-tanker accidents or illegal bilge dumping of tankers can cause significant environmental damage depending on the location and amount. The international legislation contains minor and ...Read more
Author:Mdakane, LW; Kleynhans, W; Schwegmann, CPDate:Jul 2015Accidental or deliberate bilge dumping presents a major threat to the sea ecosystem. We present a semi automatic approach to detect bilge dumping in synthetic aperture radar (SAR) images. The approach consist of three main parts. Firstly, ...Read more
Author:Van Dyk, E; Barnard, EDate:Nov 2008We investigate the use of Naive Bayesian classifiers for correlated Gaussian feature spaces and derive error estimates for these classifiers. The error analysis is done by developing an exact expression for the error performance of a binary ...Read more
Author:Machaka, Ronald; Seerane, M; Chikwanda, HKDate:May 2014The paper reviews the CSIR’s progress and challenges concerning the development of a wax-based binder system suitable for metal injection moulding (MIM). It reports on a consolidation study wherein different widely used wax-based feedstock ...Read more
Author:Millroy, L; London, G; Veale, R; Weinberg, M; Khati, MDate:Feb 2011Aptamers are artificial nucleic acid ligands that can be engineered to bind with high specificity to a macromolecule. Their binding specificity and small size allow for a range of therapeutic applications. One avenue of research is to develop ...Read more
Author:Ramukhwatho, R; Moodley, G; Maharajh, Dheepak MDate:Oct 2011The scope of this project covers the screening and characterisation of selected indigenous algal strains and screening them for lipid production potential. The algae were isolated from salt- and freshwater bodies, along the Western Cape ...Read more
Author:Maharaj, R; Gayaram, R; Crouch, N; Maharaj, V; Pillay, P; Bhagwandin, N; Folb, PIDate:Feb 2006Malaria is a serious health problem in South Africa affecting the lives of approximately 4 million people. Resistance to the principal vector, Anopheles arabiensis, has initiated a search for new plant-derived insecticides. Plants were selected ...Read more
Author:Greben, HADate:Feb 2009This presentation looks at the mining history in South Africa, the impact of mining on the environment, especially water pollution. Then the CSIR's project on remediation of mine water is discussedRead more
Author:Gordon, GER; Visser, Daniel F; Bode, ML; Brady, DDate:Nov 2008The potential of chemo-enzymatic methods to produce active pharmaceutical ingredients (APIs) such as stavudine (d4T) and zidovudine (AZT) has been demostrated during this investigation. The effect of increasing reactor productivity to ...Read more
Author:Tlotleng, Monnamme; Akinlabi, E; Shukla, M; Pityana, Sisa L; Mathebula, T; Chauke, LevyDate:Nov 2014A method of synthesising a biocompatible HAP coating is presented. In the current study, Nd:YAG laser was used to directly melt pre-place HAP powder beds on Ti-6Al-4V. The processing parameters used were 750 W laser power, 5 mm/s scanning ...Read more
Author:Nilen, RWN; Richter, PW; Ripamonti, U; Chetty, AS; Moolman, FSDate:Feb 2006Bioceramics are ceramic materials used to replace, repair or augment damaged or missing parts of the body. For example, hydroxyapatite (HA = Ca10(PO4)6(OH)2) and tricalcium phosphate (TCP = Ca3(PO4)2) are bioceramics commonly used in dental ...Read more
Author:Conradie, Dirk CUDate:Jul 2017The purpose of this paper is to research the expected effect of climate change on South African cities, with specific reference to Pretoria. A bioclimatic analysis is used to quantify the most appropriate mitigation techniques for new and ...Read more
Author:Manoto, Sello L; Malabi, Rudzani; Ombinda-Lemboumba, Saturnin; Mthunzi-Kufa, PatienceDate:Mar 2019Over the past few years gold nanoparticle (AuNPs) have become extremely interesting because they possess enhanced optical, electrical and chemical properties. AuNPs have the ability to form robust conjugates with biomolecules such as antibodies ...Read more
Author:Lück-Vogel, Melanie; Jongman, RDate:Sep 2008On April 1st, 2008 the EU FP7 project EBONE was launched. The aim of the project is the development of a (cost-effective) biodiversity data collection and monitoring system based on local field data, landscape metrics and remote sensing data ...Read more
Author:Stafford, William HLDate:Aug 2010There is a growing recognition of the carrying capacity of natural systems and how these limits impact economic growth and development. As fossil fuels are being depleted, the era of cheap fossil fuels is ending and societies are more willing ...Read more
Author:Szewczuk, SDate:Aug 2015The South Africa transport sector is a major user of energy, in particular liquid fossil fuels that contribute to Green House Gas emissions. South Africa is committed to developing a Green Economy, but South Africa has significant challenges ...Read more