Author:John, Maya JDate:Mar 2017The aim of this chapter is to discuss the design and manufacturing of bio-based sandwich structures. As the economic advantages of weight reduction have become mandatory for many advanced industries, bio-based sandwich panels have emerged as ...Read more
Author:Forbes, A; Botha, LR; Du Preez, N; Drake, TEDate:Jul 2006Laser ultrasonic is currently the optimal method for non-destructive testing of composite materials in the aerospace industry. The process is based on a laser-generated, ultrasound wave which propagates inside the composite. The response at ...Read more
Author:Forbes, A; Botha, LR; du Preez, N; Drake, TDate:Feb 2006Laser ultrasonics is the present state-of-the art method for non-destructive testing of composite materials in the aerospace industry. The process is based on an IR laser generating an ultrasound wave that propagates inside the composite ...Read more
Author:Olivier, K; Cilliers, Jacques E; Du Plessis, MDate:Jul 2011The test and evaluation of modem radars using hardware in the loop simulators requires the use of wideband high-fidelity, digital radio frequency memories (DRFM) in order to generate realistic target retums. Important aspects of wideband DRFM ...Read more
Author:Layton, L; Ellis, R; Robinson, GADate:May 1972A new concept in designing colour-and-co-we-nit effects is described and illustrated with samples.Read more
Author:Oyesola, M; Mpofu, K; Daniyan, I; Mathe, Ntombizodwa RDate:Dec 2022In evaluating emerging technology, such as additive manufacturing, it is important to analyse the impact of the manufacturing process on efficiency in an objective and quantifiable manner. This study deals with the design and simulation of a ...Read more
Author:Kenyon, CP; Matlaba, PM; Parkinson, CJ; Rousseau, AL; Van der Westhuyzen, Christiaan WDate:28 Feb 2006Recent years have brought about serious interest in the kinases as potential therapeutic targets in a variety of disease conditions. Much of this interest has centred around the preparation and utilisation of species which interact with the ...Read more
Author:Seid, ER; Majozi, TDate:Oct 2013The increasing interest in multipurpose batch plants is evident, because of their inherent flexibility to cope with an ever changing market environment. These plants are easily reconfigured for product modifications, to cover a wide range of ...Read more
Author:Meyers, Bronwyn C; Jan, MA; van der Spuy, SJDate:Sep 2017In order to increase the power of a blowdown, turbine driven compressor test rig, a combustor was designed to insert in the flow before the turbine. The combustor was required to provide 800K output temperature in order to achieve this. The ...Read more
Author:Neyt, Nicole C; Van der Westhuizen, Johan C; Panayides, Jenny-Lee; Riley, DLDate:Mar 2022Ozonolysis is an attractive, efficient, and green means of introducing oxygen containing functionalities using only oxygen and electricity. Unfortunately, safety issues associated with the accumulation of dissolved ozone and potentially ...Read more
Author:De Witt, JJ; Alahmadi, MS; Alzamil, ADate:Oct 2012High range resolution (HRR) radar measurements can provide important feature information when performing non-cooperative target recognition. This paper presents a joint development of a mobile, X-band, HRR research radar facility, by the ...Read more
Author:Grobler, JE; Rust, FC; Vos, RMDate:Oct 1994Granular Emulsion Mixes (GEMS) are used in a wide range or road applications, ranging from low volume roads in developing areas to freeways in developing urban areas. In this paper a dual design approach for granular emulsion mixes (GEMS) is ...Read more
Author:Smith, Andrew CDate:May 2016Internet of Things (IoT) advocates promise huge benefits but what technical challenges does the maker community face in order to participate in this new technological wave? We report on our experience in incorporating a maker community friendly ...Read more
Author:Sono, Tleyane J; Riziotis, CR; Maili, S; Eason, WEDate:Aug 2017Fabrication capabilities of high optical quality hexagonal superstructures by chemical etching of inverted ferroelectric domains in lithium niobate platform suggests a route for efficient implementation of compact hexagonal microcavities. ...Read more
Author:Batchelor, J; Botha, AdèleDate:Sep 2009This study reports on design criteria for mobile phones as developed and implemented by students during a school research project, tasking them to create resources for their disadvantaged peers who have with no access to educational resources ...Read more
Author:Bester, Duwan C; Vermeulen, M; Prinsloo, JDate:Nov 2017Powder Bed Fusion is a process of building a part, layer-by-layer, using a Laser to melt the cross-sections of a part in a powder layer. Aeroswift is the first South African designed and manufactured PBF machine. As part of its commissioning, ...Read more
Author:Marais, Mario A; Meyer, IDate:Nov 2015Development projects aim to make a difference in communities. Funders often require that the intervention needs to last, or that it needs to effect change that will last, over an extended period of time. In short, a sustainable difference ...Read more
Author:Roux, K; Marais, Mario ADate:Oct 2011South Africa has approximately 26500 primary and secondary schools, of which at least 17000 are in remote rural villages. None of these rural schools have any form of Internet connectivity. The same rural villages may have one health facility ...Read more
Author:Emslie, IDate:Mar 1997This report presents guidelines to assist local authorities and traffic engineers with a uniform approach to the design and implementation of mini-roundabouts. It is recommended that these guidelines be read in conjunction with the National ...Read more
Author:Letebele, MO; Maretlwa, KP; Mokonyama, Mathetha TDate:Jul 2008In the urban areas of South Africa the provision of parking has historically been based on town planning schemes formulated by local authorities. The parking requirements in these town planning schemes were established from the results of ...Read more