Author:Cloete, OP; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Jun 2019The strong relationship between the relevancy of sensory data and the physical location of the from which the data originates, has led to a growth in the need for efficient localisation techniques within Wireless Sensor Networks(WSN). It has ...Read more
Author:Nienaber, S; Kroon, RS; Booysen, MJDate:Dec 2015Consider a single camera mounted on the inside of a vehicle's windscreen used for detecting potholes and other obstacles on the road surface. This paper outlines three approaches to the depth estimation problem of determining the distance to ...Read more
Author:van Zyl, TLDate:Jul 2014We consider the challenge of providing downstream predictions of water quality using a time-series of upstream insitu measurements and a time-series of remote sensed precipitation data from the Tropical Rainfall Measuring Mission (TRMM). We ...Read more
Author:Johnson, DL; Lysko, Albert ADate:Apr 2008Predicting the performance of ad-hoc networking protocols has typically been performed by making use of software based simulation tools. Experimental study and validation of such predictions is vital to obtaining more realistic results, but ...Read more
Author:Zlobinsky, N; Johnson, DL; Mishra, AK; Lysko, Albert ADate:Feb 2022In this work, we evaluate the application of four different metaheuristic optimisation algorithms for solving the channel assignment problem in a multi-radio multi-channel Wireless Mesh Network (WMN) using Dynamic Spectrum Access (DSA). The ...Read more
Author:Golding, D; Tittgemeyer, M; Anwander, A; Douglas, TDate:Nov 2011Diffusion tensor imaging (DTI) and tractography have opened up new avenues in neuroscience. As most applications require precise spatial localization of the fibre images, image registration is an important area of research. Registration is ...Read more
Author:Masindi, Vhahangwele; Akinwekomi, V; Maree, JP; Muedi, KLDate:Aug 2017Acid mine drainage is formed from the oxidation and hydro-geo-chemical weathering of sulphide bearing minerals. These minerals originate from mining and natural processes. This has led to the formation of a very acidic mine drainage enriched ...Read more
Author:Segakweng, T; Musyoka, Nicholas M; Ren, Jianwei; Crouse, P; Langmi, Henrietta WDate:Nov 2015Nanoporous carbons which possess high surface areas and narrow pore size distributions have become one of the most important classes of porous materials with potential to be utilized for hydrogen storage. In recent times, several metal–organic ...Read more
Author:Mogakabe, L; Anochie-Boateng, Joseph; Ochieng, GDate:Jul 2018Peak hour trip generation rates are important for the calculation of the number of trips generated by a development during a peak hour. In South Africa, trip generation rates are obtained from the trip data manual documented in the Technical ...Read more
Author:Jansen van Rensburg, Gerhardus J; Wilke, DN; Kok, SDate:Oct 2011In the present study, numerical results obtained on different but related shapes are compared by using a non-rigid mapping. Non-rigid registration is employed to obtain mesh representations of different human skull geometries with the same ...Read more
Author:Hunter, L; Smuts, SDate:Feb 1978This report is concerned with the yarn frictional properties, which were not covered in the earlier studies, the knitting performance of the yearns and the physical properties of the resulting fabrics.Read more
Author:Shackleton, CMDate:Jul 2000Patterns of higher plant species richness and beta diversity were assessed using standard Modified-Whittaker plots in relation to land use, slope position and mean annual rainfall across a rainfall gradient in the savanna areas of the ...Read more
Author:Mentz, J; Kotzé, Paula; Van der Merwe, ADate:Oct 2012The term enterprise architecture has been in use for almost thirty years if the seminal paper (published in 1987) by Zachman is taken as its starting point. As a scientific area of study this time span is relatively short but for the practitioner ...Read more
Author:Nice, Jako A; Kumirai, Tichaona; Conradie, Dirk CU; Grobler, Jan-HendrikDate:Dec 2015The impact of Tuberculosis (TB) is of epidemic proportions in South Africa (SA) being one of the developing countries. Furthermore, studies seem to indicate that health care facilities are contributing to the spread of Mtb (Eshun-Wilson et ...Read more
Author:Bulcock, HH; Gush, Mark B; Jewitt, GPWDate:Apr 2014A number of studies undertaken in South Africa to quantify the green water-use (total evaporation) of introduced commercial forestry species have shown conclusively that green water-use from commercial forest plantations is substantially ...Read more
Author:Botha, Nicolene; Van der Walt, ChristiaanDate:Dec 2016With the drive to reduce carbon emissions, the use of renewable energy such as wind power, solar power, hydropower and biofuel has become more prevalent globally. In the case of wind farms, the power generated by wind turbines is highly ...Read more
Author:Rowlinson, LC; Summerton, M; Ahmed, FDate:Oct 1999It has been estimated that South Africa will reach the limits of its usable freshwater resources during the first half of the next century if current trends in water use are not reversed. Removing alien vegetation, responsible for the uptake ...Read more
Author:Nxumalo, SL; Adigun, MO; Mudali, P; Ntlatlapa, Ntsibane S; Ncanana, SMDate:Sep 2011A number of routing metrics exist in wireless networks. These routing metrics were originally designed for mobile ad hoc networks (MANETs). When Wireless Mesh Networks (WMNs) came into being, an idea of introducing and using these routing ...Read more
Author:Savage, WHDDate:1974At various times complaints have been received from the Transvaal Coal Owners Association and collieries about low calorific values obtained by the Institute on samples taken for the S.A.R locomotive contract.Read more
Author:Griffith, DJ; Sprung, D; Sucher, E; Ramkilowan, A; Vhengani, LDate:Sep 2013The optical effect of atmospheric turbulence greatly inhibits the achievable range of Detection, Recognition and Identification (DRI) of targets when using imaging sensors within the surface layer. Since turbulence tends to be worst near the ...Read more