Author:Ramulifho, RD; Gupta, K; Glaser, DanielDate:Sep 2022Additive Manufacturing (AM) of titanium (Ti6Al4V) material using Selective Laser Melting (SLM) may generate significant residual stresses of a tensile nature, which can cause premature component failure. The Aeroswift platform is a large ...Read morecbna
Author:Pindihama, GK; Gumbo, JR; Oberholster, Paul JDate:Dec 2011South Africa is a water scarce country with freshwater resources that are deteriorating mostly due to anthropogenic activities. Several dams in South Africa are eutrophic and present potential health risks to water consumers and users. ...Read more
Author:Rust, FC; Akhalwaya, Imraan; Jordaan, GJ; Du Plessis, LDate:Oct 2019This paper describes the findings of a Heavy Vehicle Simulator (HVS) test on road D1884 in the Gauteng province of South Africa. The pavement structure was rehabilitated using an anionic nano-silane modified bitumen emulsion stabilising agent ...Read more
Author:Nordengen, Paul A; Roux, Michael PDate:Nov 2013As a result of successful initiatives in Australia, New Zealand and Canada, the introduction of a performance-based standards (PBS) approach in the heavy vehicle sector in South Africa was identified by the Council for Scientific and Industrial ...Read more
Author:Pancham, Ardhisha; Withey, Daniel J; Bright, GDate:Mar 2018Simultaneous Localization And Mapping (SLAM) assumes a static environment. In a dynamic environment, the localization accuracy and map quality of SLAM may be degraded by moving objects. By removing these moving objects SLAM performance may ...Read more
Author:Pretorius, R; Theron, CC; Marais, TK; Ras, HADate:Nov 1993The effective heat of formation model allows heats of formation to be calculated as a function of the concentration of the reactants at the growth interface. The effective concentration is taken to be the concentration of the liquidus minimum ...Read more
Author:Amigun, BDate:Nov 2009Biofuels are Liquid, solid and gaseous fuel derived from organic matter-biomass-including plant materials and animal waste. This paper is about the state of biofuels in Africa and the initiatives thereof.Read more
Author:O'Connell, Johannes S; Anochie-Boateng, Joseph; Marais, HDate:Aug 2010In South Africa, crumb tyre-modified bitumen commnly known as bitumen-rubber binder has viscosity limits specified by the current edition of TG1: The Use of Modified Bituminous Binders in Road Construction. As the crumb rubber is 'digested', ...Read more
Author:Kinabo, ABD; Mwangama, JB; Lysko, Albert ADate:Mar 2021In industry, mission-critical assignments require special characteristics for their networks. Chief among these requirements is reliability – proven to be even more desired than other characteristics such as low latency. IEEE 802.1 Time ...Read more
Author:Roux, JA; Olivier, WJ; Trethewey, C; Botha, Anton FDate:Nov 2008South Africa does not produce cashmere commercially and presently there is no local cashmere industry. The Boer goat is well known for its meat production and is an established farming enterprise in South Africa. The aim of this study is to ...Read more
Author:Sun, Z; Gebremichael, M; Wang, Q; Wang, J; Sammis, TW; Nickless, ADate:Sep 2013Net radiation is a key component of the energy balance, whose estimation accuracy has an impact on energy flux estimates from satellite data. In typical remote sensing evapotranspiration (ET) algorithms, the outgoing shortwave and longwave ...Read more
Author:Mgangira, Martin B; Paige-Green, PDate:Aug 2008The paper discusses a road rehabilitation project and a sports complex, where the underlying in situ materials were typical African black cotton soils known for their expansive characteristics. Field investigations were undertaken to discern ...Read more
Author:Denneman, E; Steyn, WJVDM; Maina, JW; Sadzik, ESDate:Oct 2008This paper is based on a study into the rutting performance of HMA which forms part of the larger research initiative. The objective of this phase is to identify and develop appropriate test protocols and associated acceptance criteria for ...Read more
Author:Pretorius, CJ; Grove, TDate:Sep 2011The study evaluated diesel particulate matter (DPM) sampling methods used in the South African mining industry. The three-piece cassette respirable, open face and stopper sampling methods were compared with the SKC DPM cassette method to find ...Read more
Author:Dudeni, N; Debba, PraveshDate:Aug 2009Deterministic and stochastic measures of spectral similarity are essential for determining both the geometric characteristics of spectra and variability, respectively. Deterministic measures such as Spectral Angle Mapper (SAM) are useful in ...Read more
Author:Pandelani, Thanyani ADate:Oct 2011Anti-vehicular (AV) landmines and Improvised Explosive Devices (IEDs) are utilized to disable and destroy vehicles and to injure and kill the occupants. They present not only a threat to vehicle occupants during times of conflict, but their ...Read more