Author:Mwakikunga, Bonex W; Maaza, M; Hillie, KT; Arendse, CJ; Malwela, T; Sideras-Haddadf, EDate:Jul 2012Raman spectroscopy of the VOx nano-ribbons is discussed in the framework of the Richter (1981) equation for optical phononconfinement (a) as modified for thin films by Fauchet and Campbell (1986), (b) as presented by Kim and co-workers for ...Read more
Author:Patterton, Louise H; Bothma, TJD; Van Deventer, MJDate:Dec 2018Research data management (RDM) and its accompanying services and infrastructures are predominantly still in a state of infancy in many African countries and little is known about the RDM habits of the researchers from these areas. Our research ...Read more
Author:Van Huyssteen, Elsona; Oranje, MDate:Aug 2008This chapter describes the National Spatial Development Perspective of South Africa (NSDP) District Application Project, which was initiated by the national Presidency of South Africa. In this pilot an attempt was made to test both the prospects ...Read more
Author:De Jager, Peta; Abbott, GDate:Sep 2013Healthcare spending in South Africa is inequitably distributed across the private and public sectors. Treasury reports that 49 % of expenditure is attributable to the private sector in the service of 16% of the population. This expenditure ...Read more
Author:Holloway, Jennifer P; Ittmann, HW; Dudeni-Tlhone, Nontembeko; Schmitz, PDate:2018Elections draw enormous interest worldwide, especially if these involve major countries, and there is much speculation in the media as to possible outcomes from these elections. In many of these recent elections, such as the UK and USA, ...Read more
Author:Roux, DJ; Murray, K; Nel, JL; Hill, Liesl; Roux, H; Driver, ADate:2011The responsibility for managing and conserving freshwater ecosystems is typically shared by multiple organizations with sometimes onflicting policy mandates. However, scorecard-based approaches for measuring management effectiveness in natural ...Read more
Author:Dudley, Angela L; Forbes, ADate:Apr 2012In this work we use a phase-only spatial light modulator (SLM) to mimic a ring-slit aperture, containing multiple azimuthally varying phases at different radial positions. The optical Fourier transform of such an aperture is currently known ...Read more
Author:Van Wyk, Llewellyn VDate:Aug 2015Despite inherent definitional and interpretational difficulties the term ‘sustainability’ is widely used in contemporary economic, social and environmental discourse to describe a desirable endgame. Although the term was popularized in the ...Read more
Author:Veldsman, A; Van Rensburg, JRDate:May 2006In the light of multiple (documented) failures of ICT4Dev implementations in the developing world and especially in the light of the failure of ICT adoption, ownership and application in the South Africa MPCC initiative, the writers argue for ...Read more
Author:Van Rensburg, J; Veldsman, AW; Jenkins, MDate:2008It is easy to find in the research literature examples of ICT4Dev initiatives that have failed. Rather than continue with a focus on technologies, our journey has led us towards the establishment of a network of community based, ICT-enabled, ...Read more
Author:Barnard, E; Zarbian, SDate:May 2010The authors investigate the acoustic realization of tone in continuous utterances in Sepedi (a language in the Southern Bantu family). Human labelers marked each of the 271 syllables in a 15-sentence corpus produced by a single speaker as ...Read more
Author:Walters, Chavon R; Steyn, MaronelDate:Sep 2022Many parts of South Africa are still staggering on the back of severe droughts experienced over the past decade. Rapid urbanization has created a plethora of water-related challenges, including environmental degradation and water scarcity ...Read more
Author:Steyn, Maronel; Oberholster, Paul; Genthe, Bettina; Thwala, MelusiDate:Sep 2019Phycoremediation makes use of macroalgae or microalgae and can be used to treat wastewater. This technique has the potential to be used as an alternative biomass source for bio-energy production. The current study utilizes a specific consortium ...Read more
Author:Ford, M; Batchelor, JDate:Jul 2007In many countries mobile phones are being banned from schools amidst growing concerns regarding their inappropriate use during school hours. However, the mobile phone is the de-facto most important networked knowledge exchange technology used ...Read more
Author:Polderijk, JJ; Van Dyk, FE; Ferreira, D; Guis, GW; Keller, SDate:Mar 2006South-African and Dutch research institutes and business partners collaborated in several pilot projects for improving logistical performance and quality performance to strengthen the market position of South-African fruit after deregulation ...Read more
Author:Lysko, Albert A; Masonta, Moshe T; Johnson, DL; Venter, HDate:Sep 2012The paper describes the predictions made for Bergvliet, South Africa in terms of the availability of the frequency spectrum occupied by analogue TV broadcast around that area. The focus is made on the availability of under-used TV channels ...Read more
Author:Katumba, G; Mothibinyane, TR; Mwakikunga, Bonex WDate:Nov 2008Coatings of carbon nanoparticles dispersed in SiO2, ZnO and NiO matrices on aluminium substrates have been fabricated by a sol–gel technique. Spectrophotometry was used to determine the solar absorptance and the thermal emittance of the ...Read more
Author:Smit, Jacoba E; Prinsloo, LC; Nel, JMDate:Jul 2012Photosynthesis provides us with the most abundant and efficient light-harvesting systems found in nature. The photosynthetic process is very much dependent on the aggregation state of the chlorophylls and secondary conformational structure ...Read more
Author:Modibedi, Remegia MDate:Mar 2013Fuel cells continue to be investigated as alternative energy source because of the high energy demand worldwide. Research activities worldwide are focussed on improving the performance of the catalysts, support material, membrane, MEA ...Read more
Author:Modibedi, Remegia MDate:Jul 2013Fuel cells continue to be investigated as alternative energy source because of the high energy demand worldwide. Research activities worldwide are focussed on improving the performance of the catalysts, support material, membrane, MEA ...Read more