Author:Ittmann, HW; Holloway, Jennifer P; Dudeni-Tlhone, NontembekoDate:Jun 2017General elections are held every five years in South Africa. During the 12 to 24 hour period after the close of the voting booths, the expected final results are of huge interest to the electorate and politicians. In the past, the Council for ...Read more
Author:Sweijd, Neville; Zaitchik, BFDate:Jun 2021The COVID-19 pandemic has become one of the great historical events of the modern era, presenting a generational challenge to the world. Questions about the role of weather on SARS-CoV-2 transmission led to the gathering of scientists at an ...Read more
Author:Roos, TH; Zwane, NX; Kruger, E; Perumal, S; Cathro, RDate:Sep 2007A 252m target-aligned research heliostat with closed-loop control, with a theoretical concentration of 80 suns, has been built at CSIR in South Africa. The heliostat has four degrees of freedom: Azimuth, Elevation, Rotation and Pitch. A control ...Read more
Author:Mokoena, Ntabiseng; Djonon Tsague, Hippolyte; Helberg, ADate:Dec 2016The ability to recognise face images under random pose is a task that is done effortlessly by human beings. However, for a computer system, recognising face images under varying poses still remains an open research area. Face recognition ...Read more
Author:Dada, A; Popoola, P; Mathe, Ntombizodwa R; Adeosun, S; Aramide, ODate:Dec 2021In an optimization study, cracks were observed in the microstructures of laser-deposited HEAs on a steel baseplate from residual stresses, thus, the optimization of crack-free microstructures was achieved by the optimization of the laser ...Read more
Author:Pandarum, R; Winnie, Y; Hunter, LawranceDate:Sep 2011Exploratory retail studies in South Africa indicate that plus-sized women experience problems and dissatisfaction with poorly fitting bras. The lack of 3-D anthropometric studies for the plus-size women's bra market initiated this research. ...Read more
Author:Mutorwa, M; Salisu, S; Blatch, GL; Kenyon, C; Kaye, PTDate:Jan 2009Access to a series of truncated ATP analogs, as potential anti-tuberculosis agents, has been explored via alkylation and acylation of 3-aminophenol, whereas chloroacetylation, using chloroacetyl chloride, and subsequent Arbuzov phosphonation ...Read more
Author:Strauss, Hencharl J; Preussler, D; Esser, MJD; Koen, W; Jacobs, Cobus; Collett, OJP; Bollig, CDate:Apr 2013We report on a double-pass Ho:YLF slab amplifier which delivered 350 ns long single-frequency pulses of up to 330 mJ at 2064 nm, with a maximum M(sup2) of 1.5 at 50 Hz. It was end pumped with a diode-pumped Tm:YLF slab laser and seeded with ...Read more
Author:Manzi, MSD; Durrheim, RJ; Hein, KAA; King, NDate:Sep 2012Inrushes of ground water and the ignition of flammable gases pose risks to workers in deep South African gold mines. Large volumes of water may be stored in solution cavities in dolomitic rocks that overlie the Black Reef (BLR) Formation, ...Read more
Author:Breytenbach, AndreDate:Sep 2020Humankind often needs to accurately model, identify and spatially quantify aboveground phenomena on the Earth’s surface for informed decision-making. Height data derived from digital elevation models (DEMs) is often used to achieve this. This ...Read more
Author:Purdon, Kyla; Van Niekerk, T; Phillips, R; Marais, Stephen TDate:Nov 2023Unmanned Aerial Vehicles (UAVs) have shown great potential for data collection and monitoring of areas. Sensors such as LiDARs and cameras can be used on UAVs for high-resolution data collection and used for various applications like Digital ...Read more
Author:Lee, SA; Webb, SJ; Jones, MQW; Durrheim, RJ; Ganerød, MDate:Oct 2013The Mesoproterozoic Pilanesberg Complex, South Africa, is the world’s largest alkaline intrusion. While surface field relationships suggest an inward dipping structure, it is unclear how these dips extend to depth. The 3D geometry of the ...Read more
Author:Curle, Ulyate ADate:Jul 2017The issue regarding globular grain shape and size has been a topic for semi-solid processing since the discovery of the technique. Semi-solid rheo-processing takes advantage of cooling a liquid metal alloy to the solid + liquid phase field, ...Read more
Author:De Beer, MorrisDate:Oct 2010The CSIR’s proprietary Stress-in-Motion (SIM) measurements provide rational descriptions of 1D, 2D and 3D tyre/road pavement stresses for: Road pavement design testing and evaluation, as well as tyre design, testing and evaluation.Read more
Author:Duvenhage, B; Delport, JP; Louis, ADate:Oct 2007A 3D visual analysis tool has been developed to add value to the SANDF's growing Ground Based Air Defence (GBAD) System of Systems simulation capability. A time based XML interface between the simulation and analysis tool, via a TCP connection ...Read more
Author:Oxtoby, Oliver F; Malan, AGDate:Jan 2011The authors describe the development of a 3D parallel Fluid–Structure–Interaction (FSI) solver and its application to benchmark problems. Fluid and solid domains are discretised using and edge-based finite-volume scheme for efficient parallel ...Read more
Author:Van Schoor, MichaelDate:Oct 2021The versatility of ground penetrating radar (GPR) to solving different subsurface detection problems in urban settings is demonstrated. In particular, the advantage of the 3D approach to GPR surveying and how it complements the traditional ...Read more
Author:Ramruthan, Kshir; Kuchwa-Dube, CDate:Nov 2023Disturbances experienced by an inspection robot can reduce the quality of its sensor measurements, which can in turn negatively affect the robot’s functionality. This research aimed to design a Parallel Kinematic Mechanism (PKM) for use as ...Read more
Author:Scharler, UM; Gerber, G; Taljaard, Susan; Mackay, FDate:Mar 2024Models are inherently data-hungry for the construction, calibration, validation and predictive capacity that is demanded of models. In data-poor environments, a severe challenge to modelling is the lack of historic data, and present lack of ...Read more