Author:Chauke, Mamello D; Prinsloo, L; Pratt, Lawrence E; Roro, Kittessa TDate:Nov 2021Precise projections of long-term linear wind speed patterns provide a useful predictor of shifts in air circulation. Additionally, they are vital for the planning and financing of sectors such as wind power. Trend analysis and inter-annul ...Read more
Author:Morelli, Mauro FDate:Nov 2022This item is the John Weston Memorial Lecture and comprises a conference presentation providing details on a career involving wind tunnel testing (1990-2022).Read more
Author:Cwik, M; Gizejowski, MA; Goliger, Adam MDate:Sep 2013This paper deals with the wind-tunnel investigations of high-rise buildings. In the first part, an overview of the developments in model testing, as well as the future trends, have been discussed. Particular emphasis has been placed on methods ...Read more
Author:Goliger, Adam MDate:Apr 2010In recent years large-scale global sports events and related ventures have received significant international media coverage and socio-economic support from the hosting countries. This is especially evident in respect of all recent Olympic ...Read more
Author:Cloete, R; Loock, JC; Mtshali, Thato N; Fietz, S; Roychoudhury, ANDate:Apr 2019First measurements of labile dissolved copper (LdCu) and dissolved zinc (dZn) and nickel (dNi) in the Atlantic sector of the Southern Ocean in winter are compared with summer data at reoccupied stations in order to better understand the winter ...Read more
Author:Smit, AJ; Fitchett, JM; Engelbrecht, FA; Scholes, RJ; Dzhivhuho, G; Sweijd, Neville ADate:Jul 2020SARS-CoV-2 virus infections in humans were first reported in December 2019, the boreal winter. The resulting COVID-19 pandemic was declared by the WHO in March 2020. By July 2020, COVID-19 was present in 213 countries and territories, with ...Read more
Author:Bright, G; Tlale, NS; Kumile, CMDate:Aug 2010Modular mechatronics systems comprise of mechatronics sub-systems that are functionally complete and can be independently operated. These sub-systems can be readily fitted and connected to, or in combination with, additional sub-systems. ...Read more
Author:Molefi, M; Markus, ED; Abu-Mahfouz, Adnan MIDate:Jun 2019LPWANs are emerging to provide solutions for covering very low-power Internet of Things devices and applications which may be distributed over large geographical areas. LPWANs generally consume very low power thus their batteries can last for ...Read more
Author:Abu-Mahfouz, Adnan MIDate:Oct 2012MI2T-WSN is a multi-level infrastructure of interconnected testbeds of large-scale WSNs. MI2T-WSN consists of 1000 sensor motes that will be distributed into four different testbeds. The variations of these testbeds will allow for the ...Read more
Author:Adedeji, K; Hamam, Y; Abe, B; Abu-Mahfouz, Adnan MIDate:Sep 2016With increasing population in South Africa coupled with improved standard of living, the demand for water has increased dramatically in the past few years. To meet this demand and for effective water supply, the water loss through leakages ...Read more
Author:Dludla, Angeline G; Abu-Mahfouz, Adnan MI; Kruger, Carel P; Isaac, Sherrin JDate:May 2013Wireless sensor networks (WSNs) have been used in different types of applications and deployed within various environments. Simulation tools are essential for studying WSNs, especially for exploring large-scale networks. However, WSN testbeds ...Read more
Author:Debba, Pravesh; Cho, Moses A; Mathieu, Renaud SADate:Jul 2009In this paper, a comparison is made through evaluating the within and between-class species variability for the original, the first derivative and second derivative spectra. For each, the experiment was conducted (i) over the entire electromagnetic ...Read more
Author:De Vries, NJ; Badenhorst, J; Davel, MH; Barnard, E; De Waal, ADate:Aug 2011Building transcribed speech corpora for under-resourced languages plays a pivotal role in developing speech technologies for such languages. The authors have developed an open-source tool for devices running the Android operating system to ...Read more
Author:Diale, M; Buchner, SJ; Buthelezi, Z; Gledhill, Irvy MA; Grayson, DJ; Kgabi, NADate:Oct 2008Overall about 40% of South African researchers in science, engineering, and technology are women, but the percentage of women in the physical sciences is significantly lower. In 2006, it appeared that about 16% of the 500 members of the South ...Read more
Author:Smith, RDate:Nov 2015Rural middle-aged women are the backbone of their communities despite their being the most disadvantaged population group in South Africa and in other developing countries. Uplifting and empowering these women can positively influence a whole ...Read more
Author:Murambadoro, M; Tazvinga, HenericaDate:Oct 2012The extension of the national grid to rural areas has been hampered by several factors such as long distances, high costs of tension lines and the relatively low energy demand in rural areas which does not compensate the cost of long range ...Read more