Author:Van Zyl, Louwrens H; Gledhill, Irvy MADate:Nov 2011A grid was generated with the base of the fin, i.e. the hinge line, on the axis of a cylindrical domain with a diameter of 2m. Due to the axial symmetry of the setup, rotation of the T-tail should not change the pressure distribution on the ...Read more
Author:Moller, H; Govender, G; Stumpf, WDate:Apr 2009The T5 heat treatment of semi-solid metal (SSM) processed alloy F357 was investigated by considering the effects of cooling rate and natural aging after casting, as well as artificial aging parameters on tensile properties. In addition, the ...Read more
Author:Moller, H; Govender, G; Stumpf, WEDate:2008Semi-solid metal (SSM) processing is a unique manufacturing method to produce near-net shape products for various industrial applications. The aim is to obtain a semi-solid structure free of dendrites (which are formed by conventional liquid ...Read more
Author:Sebetoa, Matlapane R; Nwanebu, Docas; Malinga, Andries L; Venter, Jacobus PDate:Aug 2023Enabling Forward Air Control (FAC) through the Tactical Data Link (TDL) is an essential capability in modern military operations, providing effective Close Air Support (CAS). The modern TDL-based FAC system can enable faster, more reliable, ...Read more
Author:Smith, Andrew C; Springhorn, H; Mulligan, SB; Weber, I; Norris, JDate:May 2011We describe a new programming language that is based on physical elements and especially developed to test the hypothesis that a physical computer programming language is possible. This imperative language is deliberately limited to a few ...Read more
Author:De Saxe, C; Kienhofer, F; Nordengen, Paul ADate:Sep 2012The practice of issuing of abnormal load permits to South African car-carriers (allowing a 300 mm increase in height and 500 mm increase in length) is being phased out. Such allowances will only be granted if a car-carrier complies with the ...Read more
Author:Chen, H; Ojijo, Vincent O; Cele, H; Joubert, T; Ray, SS; Land, KDate:Mar 2014SU-8/Clay nanocomposite is considered as a candidate material for microcantilever sensor fabrication. Organically modified montmorillonite clay nanoparticles are dispersed in the universally used negative photoresist polymer SU-8, for a low ...Read more
Author:Dlodlo, N; Tolmay, JPDate:2011This paper describes an architecture that was designed to enable access to the scenarios/challenges on the SINGA platform. SINGA is a virtual platform that enables children facing barriers of access to information, services and people to learn ...Read more
Author:Labuschagne, Philip W; Moolman, FSDate:Nov 2011This presentation compiles a summary of current technologies to improve oxygen barrier properties of plastics.Read more
Author:Du Plessis, CDate:Sep 2002Doing business in developing countries requires a thorough understanding not only of the challenges, but also of the differences of opinion that shapes people’s attitudes and choices. Working in developing countries certainly brings with it ...Read more
Author:Smith, Andrew CDate:Nov 2006This paper describes early results in the development of an alternative programming method which uses large, three-dimensional acrylic blocks to construct programming sequences. Computer illiterate children can create a symbolic program to ...Read more
Author:Smith, Andrew CDate:Apr 2010Various modes of tangible interfaces have been explored and researched. In this paper we limit our look at tangible user interfaces to a subset of these. The subset is characterised by portability and no attached tethers, be they mechanical ...Read more
Author:Smith, Andrew CDate:Sep 2018It is a fundamental Human-Computer Interaction problem to design a tangible programming environment for use by multiple persons that can also be individualised. This problem has its origin in the phenomenon that the meaning an object holds ...Read more
Author:Roux, SDate:Jul 2011At the CSIR’s National Laser Centre, a team of researchers is pursuing Free Space Quantum Communication: transmitting optical signals by using the quantum properties of laser light. The aim is to provide secure and safe ways of communication ...Read more
Author:Buck, R; Pfahl, A; Roos, THDate:May 2012The layout for a solar tower test facility for CSIR, Pretoria, is described. The solar tower system is designed for 400kWth receiver outlet power. The heliostat field layout takes into account both the real (non-flat) topography of the terrain ...Read more
Author:Kriel, M; Le Roux, HDate:Aug 2012This chapter briefly outlines a few mathematical techniques to track targets in 3D using a 2D radar. 2D radars are relatively cheap and efficient sensors that often form the first line of defence in airspace control. In military applications ...Read more
Author:Aderibigbe, BA; Owonubi, SJ; Jayaramudu, J; Sadiku, ER; Ray, SSDate:Oct 2015Hydrogel biocomposites containing a combination of partially and thermally reduced graphene oxide (rGO) and natural polymer were prepared by free radical polymerization. The effect of rGO and the natural polymer on the morphology of the ...Read more