Author:Karsten, A; Singh, A; Almonem, SADate:Sep 2010Raytracing computer models are valuable tools to determine the fluence at a specific depth into issue, but need to be verified before they can be used with confidence. Such a model for skin showed good agreement (within 10%) when compared ...Read more
Author:Maliwatu, R; Lysko, Albert A; Johnson, DLDate:Nov 2018The paper considers usage of an existing TV broadcasting transmitter for analyzing propagation and tuning existing propagation models to local conditions for improved accuracy. A comparison of measured signal strength values with the values ...Read more
Author:Roux, A; Nurick, GNDate:Sep 2009The Council for Scientific and Industrial Research (CSIR) conducts research into the effect of underwater explosions on maritime structures and equipment. One of the parameters that are required to be measured to a large degree of accuracy ...Read more
Author:Meyers, BC; Snedden, Glen C; Meyers, Bronwyn C; Roos, TH; Mahmood, GIDate:Sep 2011A three-component flow field inside a can-type, forward flow experimental combustor was measured under non-reacting conditions. The combustor was run at atmospheric conditions with the air flow supplied from a fan and the outlet was straight ...Read more
Author:Du Plessis, WP; Odendaal, JW; Joubert, JDate:Jan 2010Experimental measurements that accurately simulate the effect of a retrodirective cross-eye jammer on a monopulse radar are described. The accuracy of a recently published extended analysis of retrodirective crosseye jamming and the limitations ...Read more
Author:Patanaik, A; Jacobs, V; Anandjiwala, RDDate:Nov 2008In this paper the authors report theoretical modeling of the electrospinning process which is substantiated by experimental study for comparison. Different types of polyethylene oxide nanofibres are spun in the presence and absence of poly ...Read more
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