Author:Sharma, AmeethDate:Jul 2016Light based techniques continue to gain momentum in different spheres of diagnostic and therapeutic applications as a result of their non-invasive, noncontact properties. One such technique is Optical Coherence tomography (OCT). Since it was ...Read more
Author:Sharma, Ameeth; Singh, Ann; Roberts, Ted; Ramokolo, Lesiba R; Strauss, Hencharl JDate:Jul 2016Light-based techniques continue to gain momentum in different spheres of diagnostic and therapeutic applications due to their non-invasive, non-contact properties. One such technique is Optical Coherence tomography (OCT). Since first being ...Read more
Author:Klein, Peter; Roos, T; Sheer, JDate:Jan 2014The development of high temperature thermal storage systems is required to increase the solar share of solar-hybrid gas turbine cycles. This paper proposes a pressurised packed bed of Encapsulated Phase Change Materials (EPCM) as a thermal ...Read more
Author:Fouché, Gerda; Senabe, J; Khorombi, E; Kolesnikoya, N; Maharaj, VJ; Nthambeleni, RDate:Nov 2008Plants have a long history of use in the treatment of cancer and over 60% of currently used anti-cancer agents are derived in one way or another from natural sources. South Africa has a rich plant biodiversity with only a limited number ...Read more
Author:Kruger, OADate:2001The most commonly used method in the calibration of step gauges is the coordinate measuring machine (CMM), equipped with a laser interferometer for the highest accuracy. This paper describes a modification to a length-bar measuring machine ...Read more
Author:De Saxe, CC; Van Eeden, J; Kemp, Lana; Steenkamp, Anton J; Cowper, JDate:Jun 2023South Africa's national power utility, Eskom, is under growing pressure to increase its power generation capacity in the face of national rolling blackouts while also containing costs, increasing revenue, and reducing its environmental impact. ...Read more
Author:Kwon, Y-J; Lee, W; Genovesio, A; Emans, NDate:Mar 2012G-protein–coupled receptors (GPCRs) are pivotal in cellular responses to the environment and are common drug targets. Identification of selective small molecules acting on single GPCRs is complicated by the shared machinery coupling signal ...Read more
Author:Lalloo, Rajesh; Maharajh, Dheepak M; Gorgens, J; Gardiner, NS; Gorgens, JFDate:May 2009Previous studies have demonstrated the efficacy of our Bacillus cereus isolate (NRRL 100132) in reducing concentrations of nitrogenous wastes and inhibiting growth of fish pathogens. In vivo efficacy and tolerance to a range of physiological ...Read more
Author:Mabena, Chemist M; Roux, FSDate:Nov 2017A method is proposed to characterize a high-dimensional quantum channel with the aid of classical light. It uses a single nonseparable input optical field that contains correlations between spatial modes and wavelength to determine the effect ...Read more
Author:Botha, Johannes G; Grobler, Marthie M; Hahn, J; Eloff, MMDate:Mar 2017Data protection and management of personal information has become an integral aspect for organisations and individuals in conducting business in the modern era. It has also become a major issue for legislators, regulators and consumers worldwide ...Read more
Author:Veerasamy, NamoshaDate:Apr 2010The aim of this paper is to describe how various observations made by sections of the world population direct people into making decisions and committing acts of cyberterror. The paper will thus look at issues like the environmental factors, ...Read more
Author:Veerasamy, NamoshaDate:Dec 2009This paper proposes a combined Red and Blue Team Methodology to guide the process of carrying out such security auditing and penetration testing tasks. Red and Blue Teams consist of various security auditing and penetration testing tasks which ...Read more
Author:Green, T; Uys, H; Biercuk, MJDate:Jul 2012Treating the effects of a time-dependent classical dephasing environment during quantum logic operations poses a theoretical challenge, as the application of noncommuting control operations gives rise to both dephasing and depolarization ...Read more
Author:Lekitima, JN; Ozoemena, KI; Jafta, CJ; Kobayashi, N; Song, Y; Tong, D; Chen, S; Oyama, MDate:2013A novel asymmetric electrochemical capacitor (AEC) with high energy and power densities has been developed using a graphene oxide/cobalt(II)tetrapyrazinoporphyrazine composite (GO/CoTPyzPz) as the positive electrode and graphene oxide/carbon ...Read more
Author:Ramontja, J; Ray, SS; Kesavan Pillai, Sreejarani; Luyt, ASDate:Dec 2009The inherent properties of poly(lactide), a biocompatible and biodegradable polymer, are concurrently improved by the incorporation of a small amount of surface functionalized carbon nanotubes. A new method has been used to functionalize the ...Read more
Author:Van Wyk, Llewellyn VDate:Oct 2016The construction, operation and maintenance of the built environment is a significant consumer of resources (Edwards 2002:10), many of which are not renewable (inter alia steel, aluminium, clay, cement, aggregates). It is also recognised that ...Read more
Author:Rapulenyane, Nomasonto; Ferg, E; Luo, HongzeDate:Sep 2018In a quest to produce cathode materials for lithium ion batteries that yield high capacities, the Li1.2Mn0.6Ni0.2O2, lithium-manganese rich cathode materials were synthesized via a facile one-pot co-precipitation process with various ratios ...Read more
Author:Lysko, Albert A; Mofolo, MDate:Oct 2014This paper overviews a low-power beam-switched smart antenna. The antenna operates at 2.4 GHz frequency band, has low power consumption (1.5 mW), and is intended for smart world applications in communications and metering. The antenna has ...Read more