Author:Ismail, Y; Mclaren, MG; Forbes, ADate:Jul 2009This presentation provides information on optical trapping and tweezing using a spatial light modulator.Read more
Author:McLaren, M; Khanyile, T; Mthunzi-Kufa, Patience; Forbes, ADate:Apr 2013We outline the possibility of optical trapping and tweezing with Super-Gaussian beam profiles. We show that the trapping strength can be tuned continuously by adjusting the order of a Super-Gaussian beam, approaching that of a perfect Gaussian ...Read more
Author:Mafusire, C; Forbes, ADate:Jul 2009The researchers have managed to do quantitative analysis of ‘controlled’ turbulence. The researchers could control the degree of turbulence by controlling the rotation speed and wall temperature of the spinning pipe gas lens. The researchers ...Read more
Author:Koen, W; Jacobs, Cobus; Bollig, C; Strauss, Hencharl J; Esser, MJD; Botha, LRDate:Jun 2014An optically pumped tunable HBr laser has been demonstrated for the first time. The pump source was a single-frequency Ho:YLF laser and amplifier system, which was locked to the 2064 nm absorption line of HBr. Laser oscillation was demonstrated ...Read more
Author:Pienaar, M; Woodborne, S; Wadley, LDate:Jan 2008Six Optically stimulated luminescence (OSL) dates are compared with stratigraphically associated C-14 dates from Rose Cottage Cave. The OSL dates overlap the accepted C-14 chronology except for one sample that overestimates the expected age ...Read more
Author:Sichilalu, S; Tazvinga, Henerica; Xia, XDate:Oct 2016This paper presents an optimal energy management strategy for a grid-tied photovoltaic–wind-fuel cell hybrid power supply system. The hybrid system meets the load demand consisting of an electrical load and a heat pump water heater supplying ...Read more
Author:Olwal, TO; Djouani, K; Van Wyk, BJ; Hamam, Y; Siarry, PDate:Jan 2011This chapter proposes a scalable singularly perturbed weakly-coupled TPM which is supported at the LL of the network protocol stack. Firstly, the WMN is divided into sets of unified channel graphs (UCGs). A UCG consists of multiple radios, ...Read more
Author:Miles, Elizna; BroughtonDate:Sep 2015This paper presents an overview of the work conducted on the Optimal control surface mixing of an unconventional UAV.Read more
Author:Cho, Moses A; Ramoelo, AbelDate:Sep 2019The varying proportions of tree and herbaceous cover in the grassland and savanna biomes of Southern Africa determine their capacity to provide ecosystem services. The asynchronous phenologies e.g. annual NDVI profiles of grasses and trees ...Read more
Author:Tazvinga, HenericaDate:Aug 2018This paper presents an optimal dispatching strategy for a photovoltaic-biogas hybrid system for an off-grid institution. The aim is to prioritise use of the PV system to meet demand whenever available. If the demand is less than the PV output, ...Read more
Author:Debba, Pravesh; Carranza, EJM; Stein, A; Van der Meer, FDDate:Sep 2008This research describes a quantitative methodology for deriving optimal exploration target zones based on a probabilistic mineral prospectivity map. In order to arrive at out objective, we provide a plausible answer to the following question: ...Read morecb
Author:Debba, Pravesh; Carranza, EJM; Stein, A; Van der Meer, FDDate:Sep 2008This research describes a quantitative methodology for deriving optimal exploration target zones based on a probabilistic mineral prospectivity map. In order to arrive at out objective, we provide a plausible answer to the following question: ...Read more
Author:Debba, Pravesh; Cho, Moses A; Mathieu, Renaud SADate:Aug 2009This paper uses simulated annealing and focus on the spectral angle mapper (SAM), to demonstrate how the separability of two mean spectra from different species can be increased by choosing the bands that maximize the metric. It is known that ...Read more
Author:Wise, RM; Cacho, ODate:Aug 2006A meta-model was developed in this study to simulate soil-tree-crop interactions under various management regimes for a smallholding in Sumatra. The model was used within a dynamic-programming algorithm to determine profit-maximising management ...Read more
Author:Burke, Michael G; Bos, NDate:Nov 2011The ability of an agent to self-localise is crucial to any autonomous task where mobility is required. A common set of techniques solving the localisation problem involve the deployment of active beacons or landmarks, which eliminate problems ...Read more
Author:Debba, PraveshDate:May 2010The presentation was an the University of Pretoria to geology students. It focused on ways to design optimal sampling schemes to target specific minerals.Read more
Author:Debba, PraveshDate:Jul 2012The presentation made to Wits Statistics Department was on common classification methods used in the field of remote sensing, and the use of remote sensing to design optimal sampling schemes for field visits with applications in vegetation ...Read more
Author:Debba, Pravesh; Carranza, EJM; Stein, A; Van der Meer, FDDate:Aug 2009This research discusses a novice method for sampling geochemicals to characterize mine tailings. Researchers model the spatial relationships between a multi-element signature and abundance estimates of secondary iron-bearing minerals in mine ...Read more
Author:Gopal, Ajith K; Adali, S; Verijenko, VEDate:Jan 2000Manufacturing of polymer composites using a curing process requires the specification of the temperature as a function of time, i.e., the temperature profile. It is of utmost importance that the selected profile satisfies a number of criteria ...Read more
Author:Botha, JDM; Dala, L; Schaber, SDate:Sep 2014A novel concept (referred to as the flap extension) is implemented on the leading edge of the flap of a three element high lift device. The concept is optimised using two optimisation approaches based on Genetic Algorithm optimisations. A ...Read more