Author:Bidgood, Peter M; Nel, ALDate:Sep 2013The current trend in balance calibration-matrix generation is to use non-linear regression and statistical methods. Methods typically include Modified-Design-of-Experiment (MDOE), Response-Surface-Models (RSMs) and Analysis of Variance (ANOVA). ...Read more
Author:Page, Philip R; Abu-Mahfouz, Adnan MI; Yoyo, SonwabisoDate:Sep 2017Reducing pressure in a water distribution system leads to a decrease in water leakage, decreased cracks in pipes, and consumption decreases. Pressure management includes an advanced type called remote real-time control. Here pressure control ...Read more
Author:Adebiyia, DI; Fatoba, O; Pityana, Sisa L; Popoola PDate:Jun 2016Silicon carbide (SiC), has excellent mechanical properties such as high hardness and good wear resistance, and would have been a suitable laser-coating material for titanium alloy to enhance the poor surface hardness of the alloy. However, ...Read more
Author:Klein, Peter; Roos, TH; Sheer, TJDate:Aug 2015The development of a high temperature Thermal Energy Storage (TES) system will allow for high solar shares in Solar Gas Turbine (SGT) plants. In this research a pressurised storage solution is proposed that utilises a packed bed of alumina ...Read more
Author:Klein, Peter; Roos, TH; Sheer, TJDate:Aug 2015The development of a high temperature Thermal Energy Storage (TES) system will allow for high solar shares in Solar Gas Turbine (SGT) plants. In this research a pressurised storage solution is proposed that utilises a packed bed of alumina ...Read more
Author:Folorunso, O; Hamam, Y; Sadiku, R; Ray, Suprakash S; Joseph, ADate:Jul 2019The problem associated with mixtures of llers and polymers is that they result in mechanical degradation of the material (polymer) as the ller content increases. This problem will increase the weight of the material and manufacturing cost. ...Read more
Author:Shatalov, M; Greeff, JC; Joubert, SV; Fedotov, IDate:Sep 2008In this paper a mathematical model describing the interaction of a lion population with that of the zebra and wildebeest populations is considered. The traditional method uses a model with known coefficients and a CAS numerical routine to ...Read more
Author:Dada, M; Popoola, P; Mathe, Ntombizodwa R; Pityana, Sisa L; Adeosun, SDate:Aug 2020In this study, a full-factorial design of experiments was systematically structured to optimize the laser processing parameters of additively manufactured high entropy alloys by determining the impact of these parameters on the mechanical ...Read more
Author:Butgereit, LDate:Dec 2006Parent Run Science Clubs: A case study at Nooitgedacht 88 Primary School is a presentation case study presentation that will facilitate national, economic and social improvement through human capital developmentRead more
Author:Marais, Laurette; Pretorius, LDate:Jul 2023While Grammatical Framework (GF) resource grammars are primarily intended as linguistic software libraries, they can also be employed to enable syntax parsing via the GF runtime system. The isiZulu resource grammar (ZRG) in conjunction with ...Read more
Author:Godfrey, Linda K; Scott, D; Difford, M; Trois, CDate:Nov 2012An empirical study was undertaken with 31 organisations submitting data to the South African Waste Information System (SAWIS) in order to explore the relationship between data and resultant waste knowledge generated through a process of ...Read more
Author:Coetzee, Serena; Cooper, Antony K; Rautenbach, VDate:2014The first part of this chapter provides background information on geo-spatial standardization. A standard and different types of standards are defined; the development and implementation of standards are described; and key standards bodies ...Read more
Author:Godfrey, Linda K; Scott, D; Difford, M; Trois, CDate:Jun 2012Combining the process of learning and the theory of planned behaviour into a new theoretical framework provides an opportunity to explore the impact of data on waste behaviour, and consequently on waste management, in South Africa. Fitting ...Read more
Author:Schlunz, Georg I; Barnard, E; Van Huyssteen, GBDate:Nov 2010One of the goals of text-to-speech (TTS) systems is to produce natural-sounding synthesised speech. Towards this end various natural language processing (NLP) tasks are performed to model the prosodic aspects of the TTS voice. One of the ...Read more
Author:Schlunz, Georg I; Dlamini, Nkosikhona; Kruger, Rynhardt PDate:Sep 2016Text-to-speech synthesis can be an empowering communication tool in the hands of the print-disabled or augmentative and alternative communication user. In an effort to improve the naturalness of synthesised speech – and thus enhance the ...Read more
Author:Duma, M; Twala, B; Nelwamondo, Fulufhelo V; Marwala, TDate:Sep 2013We propose a hybrid missing data imputation technique using positive selection and correlation-based feature selection for insurance data. The hybrid is used to help supervised learning methods improve their classification accuracy and ...Read more
Author:Versfeld, DBDate:1995South Africa has hundreds of thousands of hectares of heavily populated and badly degraded landscapes. Past attempts at land management have been either through avoidance or the top-down imposition of ''betterment'' schemes. Participatory ...Read more
Author:Liebermann, S; Coulson, JDate:Oct 2004Community policing remains more a talked-about concept than a practice actually taking place in South Africa today. In spite of much legislation pointing to the need for people's participation, there is limited understanding of how this should ...Read more
Author:Pretorius, CDate:May 2010In view of the international drive to eliminate silicosis, it is critical that reliable and consistent results are obtained from respirable dust sampling and analysis so that effective control measures can be implemented on mines. Two locally ...Read more
Author:Gerber, G; Diedericks, G; Basson, GRDate:Mar 2011Particle image velocimetry scalar measurements were carried out on the body of a stably stratified density current with an inlet Reynolds number of 2,300 and bulk Richardson number of 0.1. These measurements allowed the mass and momentum ...Read more