Author:Grobler, Carla; Sharifpur, M; Ghodsinezhad, H; Capitani, R; Meyer, JPDate:Jul 2015Natural convection is convection where the fluid motion is driven by buoyancy forces. Porous media and nanofluids have an impact on the heat transfer capabilities of thermal systems. The present experimental study is part of ongoing research ...Read more
Author:Malan, DF; Grave, M; Napier, JAL; Piper, PS; Lawrence, LEDate:Mar 2003Previous fundamental research projects have indicated the value of continuous closure measurements for improved support design and hazard assessment and for quantifying the effect of seismicity on stope closure. This project examined the ...Read more
Author:Malan, DF; Grave, M; Napier, JAL; Piper, PS; Lawrence, LEDate:Mar 2003Previous fundamental research projects have indicated the value of continuous closure measurements for improved support design and hazard assessment and for quantifying the effect of seismicity on stope closure. This project examined the ...Read more
Author:Dube, CDate:Sep 2013Mobile manipulators are highly susceptible to tip over due to the motion of the manipulator or the gradient of the slope being traversed by the robot’s mobile base. This paper presents the experimental validation of the tip over stability ...Read more
Author:Karsten, AE; Singh, A; Braun, MWDate:Apr 2011Laser light is frequently used in both diagnostics and treatment of patients. For any laser treatment to be effective it is important to deliver the correct dose at the treatment site. Human skin scatters and absorbs laser light in the visible ...Read more
Author:Vogt, D; Nyareli, TDate:Jun 2008It is difficult to achieve significant directivity in the radial direction of a borehole radar antenna, because the spacing of antenna elements is typically constrained by the borehole diameter to be considerably less than a wavelength. ...Read more
Author:Malinga, Andries LDate:Nov 2017The evolution of the Next Generation Network Technologies such as the Fourth Generation (4G) and Fifth Generation (5G), have made them an adoption option in Command and Control (C2) tactical deployments for wireless communication network ...Read more
Author:Erasmus, TCDate:1962The raw coal brought to the plant was reduced to minus three inches. The minus coal was passed over screens to eliminate minus 1/4 inch fines and -3 inch +1/4 inch coal was stored in service bunkers in the pilot plant building.Read more
Author:Erasmus, TC; Du Plessis, HSLDate:1963The raw coal brought to the pilot plant was reduced to minus three inches. The minus three inch coal was passed over screens to eliminate minus 1/4 inch fines.Read more
Author:Van Niekerk, DRDate:Nov 2011The quality of corpus-based text-to-speech (TTS) systems depends on the accuracy of phonetic annotation (alignments) which directly influences the process of acoustic modelling. In this paper the author discusses the rapid development of ...Read more
Author:Rawal, A; Davies, PJDate:2005Net structures were produced by replacing the static die (spinneret) with two concentric dies (consisting of slots) rotating in opposite directions in a melt extrusion process. A series of net structures and filaments were produced from a ...Read more
Author:Koen, Hildegarde; De Villiers, Johan P; Roodt, H; De Waal, ADate:Mar 2017A significant challenge in ecological modelling is the lack of complete sets of high-quality data. This is especially true in the rhino poaching problem where data is incomplete. Although there are many poaching attacks, they can be spread ...Read more
Author:Ramoelo, Abel; Cho, Moses ADate:Feb 2018Leaf nitrogen concentration (leaf N, %) is an essential component for understanding biogeochemical cycling. Leaf N is a good indicator of grass or forage quality, which is important for understanding the movements and feeding patterns of ...Read more
Author:Marais, Laurette; Pretorius, LDate:Feb 2021AwezaMed Covid-19 is a multilingual speech-to-speech translation application for screening patients for Covid-19. It enables Englishspeaking health care providers (HCPs) to conduct screenings by asking questions to patients in all other ...Read more
Author:Pretorius, L; Bosch, SDate:Mar 2009This paper investigates the possibilities that cross-linguistic similarities and dissimilarities between related languages offer in terms of bootstrapping a morphological analyser. In this case an existing Zulu morphological analyser prototype ...Read more
Author:Adelabu, S; Mutanga, O; Adam, E; Cho, Moses ADate:Nov 2013Classification of different tree species in semiarid areas can be challenging as a result of the change in leaf structure and orientation due to soil moisture constraints. Tree species mapping is, however, a key parameter for forest management ...Read more
Author:Bollig, C; Koen, W; Strauss, Hencharl J; Bernhardi, EH; Botha, R; Esser, D; Preussler, DRDate:2008Of the various Neodymium-doped materials, Nd:YLF is particularly attractive for use in high-power diode endpumped solid-state lasers due to its weak thermal lens, especially on the σ-polarisation, and it’s long upper laser level lifetime that ...Read more
Author:Dudley, Angela L; Rosales-Guzman, C; Trichilli, A; Forbes, ADate:Jan 2017We implement digital holograms for the creation and detection of the spatial modes of light. We make use of modal decomposition theory to determine the numerous properties of light, from the modal content of laser beams to decoding the ...Read more
Author:Walters, Laticha EM; Scott, RE; Mars, MDate:2019Realisation of proven telemedicine scale-up benefits is a key consideration for South Africa, a developing country with a quadruple disease burden, inequitable access to healthcare, and ineffective and inefficient specialist referral pathways. ...Read more
Author:Erinosho, MF; Akinlabi, ET; Pityana, Sisa LDate:2016This paper presents the explorations conducted on the evolving microstructures and the dry sliding wear of the laser deposited Ti6Al4V/Cu composites. The laser powers between 1300 W and 1600 W; scanning speeds between 0.30 and 0.72 m/min were ...Read more