Author:Robbins, SL; Heyns, PS; Heyns, Johan ADate:May 2020The majority of condition monitoring techniques employed today consider the acquisitioning and analysis of structural responses as a means of profiling machine condition and performing fault detection. Modern research and newer technologies ...Read more
Author:Molobi, E; Sacks, N; Theron, MarithaDate:Oct 2018Laser Enabled Net Shaping technology in the manufacture of cemented tungsten carbides is challenging and many scientific gaps still need to be addressed to ensure commercial viability. In this study the feasibility of using LENS® to produce ...Read more
Author:Lutchman, Stanley; Van Wyk, Llewellyn VDate:Mar 2019The Department of Science and Technology (DST) together with the Eastern Cape Department of Education (ECDOE) are co-funding the construction of a science centre in the village of Cofimvaba in the Eastern Cape. The purpose of the science ...Read more
Author:North, Brian C; Engelbrecht, AD; Oboirien, BDate:Jul 2015A techno-economic assessment was undertaken in two phases. The first is essentially a material and energy balance, in which fuel and sorbent requirements are calculated using input data such as plant size, plant efficiency, fuel CV, Ca/S ...Read more
Author:Mdakane, Lizwe W; Kleynhans, WDate:Oct 2020Oil spills are often caused by vessels when dumping oily bilge wastewater at sea (also referred to as bilge dumping). In an synthetic aperture radar (SAR) image, oil spills dampen the radar energy return and appear as linearly shaped dark ...Read more
Author:Naidoo, T; Tapamo, JR; McDonald, Andre MDate:Sep 2015A feature selection algorithm that is novel in the context of anomaly–based network intrusion detection is proposed in this paper. The distinguishing factor of the proposed feature selection algorithm is its complete lack of dependency on ...Read more
Author:Naidoo, Tyrone; McDonald, Andre M; Tapamo, J-RDate:Sep 2015A feature selection algorithm that is novel in the context of anomaly–based network intrusion detection is proposed in this paper. The distinguishing factor of the proposed feature selection algorithm is its complete lack of dependency on ...Read more
Author:Rosman, Benjamin SDate:Oct 2014Representation learning is a difficult and important problem for autonomous agents. This paper presents an approach to automatic feature selection for a long-lived learning agent, which tackles the trade-off between a sparse feature set which ...Read more
Author:Burke, Michael GDate:Nov 2009This poster presents a visual servo approach to straight line range and velocity regulation. The difference in velocity between a lead mobile robot and a follower is regulated through velocity control of the follower, in order to maintain a ...Read more
Author:Featherstone, Coral; Van der Poel, EDate:Jun 2017Computational creativity is a multi-disciplinary area of research that investigates what aspects of computing can be considered as an analogue to the human creative process. One premise is that humans come up with new concepts or creative ...Read more
Author:De Beer, MorrisDate:Nov 2001Describes in summary the attendance of the author at an invited meeting of the COST 347 ALT (Accelerated Loading Testing) Committee in Cologne, Germany, Europe. The meeting was held at Bast, near Cologne, from 27th June 2001 to 29th June 2001. ...Read more
Author:Amigun, B; Petrie, D; Gorgens, JDate:Sep 2013The production of fuel grade ethanol from nonfood grade crops in South Africa has the potential to reduce reliance on imported oil and minimize the negative environmental consequences of fossil fuels. This article presents a preliminary ...Read more
Author:Roberts, DE; Du Plessis, A; Botha, LRDate:2009The average ablation depth per pulse of silver foil by 130 fs laser pulses has been measured in vacuum over a range of three orders of magnitude of pulse fluence up to 900 J cm_2. In addition, double pulses with separations up to 3.4 ns have ...Read more
Author:Roberts, DE; Du Plessis, A; Botha, LRDate:2009The average ablation depth per pulse of silver foil by 130 fs laser pulses has been measured in vacuum over a range of three orders of magnitude of pulse fluence up to 900 J cm-2. In addition, double pulses with separations up to 3.4 ns have ...Read more
Author:Du Plessis, A; Strydom, CA; Uys, H; Botha, L; Roberts, T; Dlamini, THDate:Sep 2010Femtosecond laser control of chemical reactions is made possible through the use of pulse-shaping techniques coupled to a learning algorithm feedback loop – teaching the laser pulse to control the chemical reaction. This can result in ...Read more
Author:Du Plessis, A; Strydom, CA; Uys, H; Botha, L; Roberts, T; Dlamini, THDate:31 Aug 2010Femtosecond laser control of chemical reactions is made possible through the use of pulse-shaping techniques coupled to a learning algorithm feedback loop – teaching the laser pulse to control the chemical reaction. This can result in ...Read more
Author:Du Plessis, A; Strydom, CA; Uys, H; Hendriks, A; Botha, GN; Botha, LRDate:Jul 2011Results from experiments aimed at bimolecular chemical reaction control of CO and H2 at room temperature and pressure, without any catalyst, using shaped femtosecond laser pulses are presented. A stable reaction product (CO2) was measured ...Read more