Author:Masina, Bathusile N; Forbes, A; Bodkin, R; Mwakikunga, Bonex WDate:Jul 2012Diamond tools are used in industry for abrasive applications such as grinding, and drilling. One of its important applications is in drill bits used for drilling through rock in search of oil. The early failure of drill bits used in oil ...Read more
Author:Engelbrecht, CJ; Landman, WA; Engelbrecht, FADate:Sep 2012Climate predictability and variability studies over South Africa typically focus on the summer rainfall region and to a lesser extent on the winter rainfall region. The all-year rainfall region of South Africa, a narrow strip located along ...Read more
Author:Ndhlovu, T; Nicolls, FDate:Nov 2009The authors present a confidence measure applied to individual disparity estimates in local matching stereo correspondence algorithms. It aims at identifying textureless areas, where most local matching algorithms fail. The confidence measure ...Read more
Author:Strydom, JFSDate:27 Nov 1979The objective of two of the studies was to choose the most economical source of heating energy, taking cognizance of the building owner’s particular circumstances; in both cases a suitable alternative to light petroleum oil, which had been ...Read more
Author:Du Plessis, JJLDate:Aug 1997This project was launched to determine whether other inert material might be suitable to replace or complement the stone dust. The materials investigated were two different types of fly ash, two types of stone dust, water and calcium sulphateRead more
Author:Smith, Andrew CDate:May 2010The authors investigate a potentially low-cost multi-user computer pointing interface. Given a choice of four targets arranged on the screen, the authors looked at what the user’s preference is in visiting the targets with a hand-held light ...Read more
Author:Duvenhage, A; Duvenhage, BDate:Jun 2008Some progress has recently been made on migrating an existing distributed parallel discrete time simulator to a quantised discrete event architecture. The migration is done to increase the scale of the real-time simulations supported by the ...Read more
Author:Paige-Green, P; Cassiem, IDate:2003The Problems with the location of sustainable sources of suitable materials for the upgrading of various local roads to TRH 20 standard in a number of locations in the Limpopo Province resulted in an investigation to assess possible alternatives ...Read more
Author:Pityana, Sisa LDate:Dec 2011This work investigates the reinforcement of the aluminium matrix with TiC ceramic and in-situ synthesized AI-Ni intermetallic particles.Read more
Author:Kesavan Pillai, Sreejarani; Ramontja, J; Ray, Suprakas SDate:Nov 2011This work describes a comparison between two chemical functionalization strategies for the amine functionalization of carbon nanotubes (CNTs). In the first procedure, the CNTs are functionalized in direct amination process that avoids the use ...Read more
Author:Naidoo, Darryl; Sroor, H; Litvin, I; Forbes, ADate:Sep 2019The Higher order Poincar´e sphere (HOPS) is generally used to describe scalar and vector orbital angular momentum modes. These modes have found many applications to date; however, they are limited to low power levels. It has thus become topical ...Read more
Author:Dudley, Angela L; Nock, M; Konrad, T; Forbes, ADate:Mar 2010Since the pioneering work on the entanglement of the orbital angular momentum (OAM) states of light, much attention has been devoted to the subject, with particular attention into the quantum aspects of information processing using OAM. ...Read more
Author:Dudley, Angela L; Nock, M; Konrad, T; Roux, F; Forbes, ADate:Sep 2010An interferometer, mimicking an amplitude damping channel for vortex modes, is presented. Experimentally the action of the channel is in good agreement with that predicted theoretically. Since we can characterize the action of the channel on ...Read more
Author:Van Vuuren, DS; Engelbrecht, AD; Hadley, TDDate:Sep 2006Titanium is the ninth most abundant element and the forth most common construction metal in the earth’s crust. It’s high strength, high-temperature performance, low density, high corrosion resistance and bio-compatibility makes it the ideal ...Read more
Author:Helbig, M; Engelbrecht, APDate:Jun 2012Dynamic multi-objective optimisation problems (DMOOPs) occur in many situations in the real world. These optimisation problems do not have a single goal to solve, but many goals that are in conflict with one another - improvement in one goal ...Read more
Author:Badenhorst, J; Davel, MH; Barnard, EDate:Nov 2010The authors investigate several approaches aimed at a more detailed understanding of co-articulation in spoken utterances. They find that the Euclidean difference between instantaneous frame-based feature values and the mean values of these ...Read more
Author:Van den Berg, H; Coetzee, S; Cooper, Antony KDate:Jun 2011Commons are resources that belong to or affect an entire community. In a Web 2.0 environment, users interact and collaborate with each other to produce user generated content that belongs to the community, i.e. a commons. Web 2.0 implies that ...Read more
Author:Mashaba, Nikiwe P; Griffith, DJDate:Nov 2020Absorption, scattering and refractive index fluctuations are three primary phenomena contributing to optical turbulence. Temperature fluctuations, humidity and air velocity cause variations on both temporal and spatial, in the refractive ...Read more
Author:Faling, W; Van Huyssteen, Elsona; Le Roux, AlizeDate:Oct 2012This is a presentation paper on the development of multi-criteria indicators for integrated assessment of socio-economic vulnerability at a regional level. An indication is provided of some first steps in interpreting projections for environmental ...Read more
Author:Jamison, Kevin ADate:Sep 2011The objectives of this presentation is to present the process followed at CSIR to evaluate the integration of the Katleho PGM with the BAE Hawk Mk120, to emphasise ejection dynamics and to share some of the experience and lessons learned with ...Read more