Author:Scholes, BDate:Feb 2006A group of researchers at the CSIR have been investigating the question “What controls the growth rate of trees in African savannas”? A combination of simple measurements taken in the field over long periods of time, with high-technology ...Read more
Author:Pretorius, CJDate:Mar 2012Currently, there is no occupational exposure limit (OEL) for diesel particulate matter (DPM) in South Africa. Recently the Department of Mineral Resources and the mining industry have made efforts to determine which concentration of DPM could ...Read more
Author:Maia, JorgeDate:Oct 2017This presentation explores and compares the developments and outlook of the global economy, as well as the South African economy in terms of industrial growth.Read more
Author:Mapiravana, JosephDate:Jul 2012This paper was motivated by the need to identify trends in building materials research development and application that will significantly reduce building costs, life cycle costs and minimise the lead time for building delivery in South Africa ...Read more
Author:Meyer, AA; Weerts, Steven PDate:Sep 2009In this invited paper presented to the South Western Indian Ocean Fisheries Commission's fouth session, the trends in South Western Indian Ocean climatology have been evaluated for the 21st century. The scientific information presented in the ...Read more
Author:Oelofse, Suzanna HH; Strydom, WFDate:Sep 2010Waste recycling in South Africa is largely industry driven with the focus to date having been on pre-consumer recovery and recycling from business and industry. With a very young pro-environmental consciousness in South Africa, limited ...Read more
Author:Isong, B; Manuel, M; Dladlu, N; Abu-Mahfouz, Adnan MIDate:Nov 2023The growing application of wireless sensor networks (WSN) has unveiled several opportunities for innovative services and data-driven applications. However, the WSN's inherent vulnerabilities and challenges have raised considerable concerns ...Read more
Author:Smith, Simone MDate:Jul 2018This paper investigates the link between the rationales between piracy attacks, the information gathered from such incidents and if the same information may be used to address the rationale behind piracy to combat and prevent it. A common ...Read more
Author:Lemmer, Yolandy; Siko, G; Swai, H; Verschoor, JDate:Aug 2009This poster is the first demonstration of the use of the evanescent field biosensor to show the interaction between low molecular weight ligate/ligand pairs. The authors demonstrated the interaction of Amphotericin B to either immobilized ...Read more
Author:Ngcobo, Sandile; Ait-Ameur, K; Litvin, I; Hasnaoui, A; Forbes, ADate:Feb 2014In this paper we experimentally demonstrate a simple laser cavity that produces spatial tuneable laser modes from a Gaussian beam to a Flat-top beam and a Donut-beam. The laser cavity contains an opaque ring and an adjustable circular aperture ...Read more
Author:Berman, R; Kienhofer, FDate:Sep 2012An ADAMS model of South Africa’s first ever Le Mans car was developed and used to tune the suspension parameters. Validation of the model is to be done by comparing simulation results to those obtained in track testing. The suspension parameters ...Read more
Author:Dunn, Dwain I; Snedden, Glen C; Von Backström, TWDate:Sep 2009In a gas turbine engine secondary flows have a detrimental effect on efficiency. The current numerical study is aimed at determining which turbulence model in a commercially available CFD code is best suited to predicting the secondary flows. ...Read more
Author:Butgereit, L; Coetzee, L; Smith, Andrew CDate:Oct 2011The “Internet of Things” is the paradigm of connecting physical objects (things) with digital intelligence to the Internet. People have been connecting to the Internet for decades. It is only recently that things have been able to connect to ...Read more
Author:Jansen van Rensburg, Gerhardus J; Kok, SDate:Dec 2012Since plasticity is path dependent, it is necessary to properly take into account the deformation, strain rate and temperature history in applications such as crash worthiness and ballistics simulations. To accurately model the evolution of ...Read more
Author:Leigh, L; Helder, D; Behnert, I; Deadman, A; Fox, N; Leloglu, UM; Özen, H; Griffith, DDate:Jul 2011The Tuz Gölü site does demonstrate some challenges for being used as an absolute calibration site. These include: spatial and temporal variability on the order of +/- 0.02, atmospheric transmittance variability on the order of between 0.52 ...Read more
Author:Ramoroka, MT; Masonta, Moshe T; Kliks, ADate:Dec 2015The role of cheap and easy access to various telecommunication facilities is crucial for further community development. Such an observation is of particular importance for the developing countries all over the world since reliable and open ...Read more
Author:Masonta, Moshe T; Lysko, Albert A; Mekuria, FissehaDate:Oct 2012In wireless communication networks, radio frequency spectrum is the most important and very expensive resource. The TV digital
switchover (DSO) will leave a large portion of the TV frequency bands unused, known as TV white space (TVWS). In ...Read more
Author:Louis, DK; Hanson, I; Masonta, Moshe TDate:May 2016This paper introduces the Ghana Technology University College (GTUC) television white space (TVWS) network deployed in Accra, Ghana. The network, which is still work-in-progress, provides Internet connectivity to six Senior High Schools and ...Read more