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:Malherbe, Johan; Engelbrecht, FA; Landman, WA; Engelbrecht, CJDate:Mar 2011The study provides perspective on the contribution of landfalling tropical systems (cyclones, depressions, storms and lows) from the southwest Indian Ocean (SWIO) towards rainfall over the eastern interior of southern Africa, over the period ...Read more
Author:Sivakumar, V; Bencherif, H; Begue, N; Thompson, AMDate:Jul 2011In this paper, tropopause characteristics observed from tropical to subtropical Southern Hemisphere stations using Southern Hemisphere Additional Ozonesonde (SHADOZ) data are presented for the 11-yr period of 1998–2008. Three different ...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:Ntshabele, K; Isong, B; Gasela, N; Abu-Mahfouz, Adnan MIDate:Sep 2022The traditional Long-Range Wide-Area Network (LoRaWAN) uses an Advanced Encryption Standard (AES) 128 bit symmetric key to secure entities and data against several attacks. However, due to the existence of heterogeneous applications, designing ...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:Sep 2013We outline a simple laser cavity comprising an opaque ring and a circular aperture that is capable of producing spatially tuneable laser modes, from a Gaussian beam to a Flat-top beam. The tuneability is achieved by varying the diameter of ...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:Chi, B; Hou, S; Liu, G; Deng, Y; Zeng, J; Song, H; Liao, S; Ren, JianweiDate:Jun 2018The wettability, or hydrophobic-hydrophilic balance, of cathode catalyst layer influences the performance of the proton exchange membrane fuel cell. In this paper, cathode catalyst layer with different polytetrafluoroethylene contents are ...Read more
Author:Chi, B; Hou, S; Liu, G; Deng, Y; Zeng, J; Song, H; Liao, S; Ren, JianweiDate:Jul 2018The wettability, or hydrophobic-hydrophilic balance, of cathode catalyst layer influences the performance of the proton exchange membrane fuel cell. In this paper, cathode catalyst layer with different polytetrafluoroethylene contents are ...Read more
Author:Wahab, OO; Olasunkanmi, LO; Govender, Krishna; Govender, PPDate:Jun 2019Effects of substituent groups on aqueous solubility, chemical reactivity and absorption wavelength of Disperse red 73 (DR73) were theoretically investigated using density functional theory (DFT) method. This study is in view of introducing ...Read more
Author:Salehiyan, Reza; Ray, Suprakas SDate:Oct 2018This article critically reviews the detailed fundamental understanding of the influence of conductive nanoparticle migration on the localization, and hence, electrical conductivity of immiscible polymer blend nanocomposites. Three types of ...Read more
Author:Opoku, F; Govender, Krishna; Van Sittert, CGCE; Govender, PPDate:Sep 2018The depleting sources of non–renewable fossil fuels and their adverse effect on the environment have driven the global interest to find an efficient and suitable material for hydrogen generation via a water splitting process. In this theoretical ...Read more
Author:Mofokeng, Tladi G; Ray, Suprakas S; Ojijo, Vincent O; Salehiyan, RezaDate:Sep 2017The present study reports the dependence of the nano/micro-structure and properties of polypropylene (PP)/ethylene vinyl acetate (EVA)/nanoclay ternary composites on the kinetics and thermodynamics of the melt-mixing process. The size of ...Read more
Author:Agboola, BO; Ozoemena, KI; Nyokong, T; Fukuda, T; Kobayashi, NDate:Mar 2010The integration of phenylamine-functionalised SWCNTs (SWCNT-phenylamine) with a novel cobalt (II) octa[(3,5-biscarboxylate)-phenoxy] phthalocyanine (CoOBPPc) complex has been described. The physical and electrochemical properties of the ...Read more