Author:De Villiers, Johan P; Laskey, K; Jousselme, A-L; Blasch, E; Pavlin, G; Costa, PDate:Jul 2015Mathematical and uncertainty modelling is an important component of data fusion (the fusion of unprocessed sensor data) and information fusion (the fusion of processed or interpreted data). If uncertainties in the modelling process are not ...Read more
Author:Sahraeian, R; van Compernolle, D; De Wet, FebeDate:Sep 2015Conventional acoustic modeling involves estimating many parameters to effectively model feature distributions. The sparseness of speech and text data, however, degrades the reliability of the estimation process and makes speech recognition a ...Read more
Author:Hlophe, K; Green, JDate:Jul 2011Platform pose (localization and orientation) information is a key requirement for autonomous mobile systems. The severe natural conditions and complex terrain of underground mines diminish the capability of most pose estimation systems, ...Read more
Author:Green, JJDate:Nov 2012The Council for Scientific and Industrial Research (CSIR) in South Africa is currently developing a robot for the inspection of the ceiling (hanging-wall) in an underground gold mine. The robot autonomously navigates the 30 meter long by 3 ...Read more
Author:James, S; Verrinder, RA; Sabatta, D; Shahdi, ADate:Oct 2012One of the major issues in the field of mobile robotics is localisation and navigation in an unknown environment. These tasks become even more challenging in an underground environment where no GPS signals or stationary landmark towers are ...Read more
Author:Joughin, WC; Human, JL; Terbrugge, PJDate:Apr 2002The nature of this project requires that various types of shotcrete be applied to a tunnel and that the performance thereof under extensive deformation be monitored over a period of time. In order to achieve this, one of the most critical ...Read more
Author:Mouton, Francois; Nottingham, Alastair T; Leenen, Louise; Venter, HSDate:Aug 2017Information security is a fast-growing discipline, and relies on continued improvement of security measures to protect sensitive information. In general, human operators are often highly susceptible to manipulation, and tend to be one of the ...Read more
Author:Sellers, EJ; Coetzer, SJ; Kamstra, RDate:Oct 2002The primitive stress state is an important input into the design of underground excavations. However, it is well known that the stress state varies considerably from place to place. The aim of this project was to determine the main causes of ...Read more
Author:Du Plessis, CDate:Sep 2008This paper builds on earlier ecological approaches to urban development, as well as more recent thinking in the fields of sustainability science, resilience thinking and complexity theory, to propose a conceptual framework for understanding ...Read more
Author:Schmitz, P; Scheepers, L; de Wit, PWC; De la Rey, ADate:Sep 2007Spatial data such as roads and land parcels is increasingly becoming a commodity that is being created with the aim to sell or to provide spatial information to other institutions for further processing or to decision makers to aid in their ...Read more
Author:Napier, MarkDate:Feb 2006More than 60% of Africa’s urban population lives in slums and most African countries' population subsist on under US$2.0 per day, and the average probability at birth of not surviving to age 40 is about 38%. 25 to 30% of housing in SA cities ...Read more
Author:Byrne, E; Jolliffe, B; Mabaso, NMDate:Jul 2006This paper describes a conscious attempt to use metaphor to both promote, and also reinterpret, ideas and values from the global Free and Open Source Software movement in the context of South Africa. A case study is given of an initiative ...Read more
Author:John, J; Garland, Rebecca M; Landman, WADate:Sep 2015The purpose of the work is to understand the potential need and use of extreme temperature forecasting products in the environmental health sector in South Africa by using an online questionnaire. Seven of 19 respondents currently receive ...Read more
Author:Cheruiyot, D; Osunmakinde, IODate:Dec 2010This research investigates an alternative approach to automatically evolve the hidden temporal distribution of onset of rainfall directly from multivariate time series (MTS) data in the absence of domain experts. Temporal probabilistic modelling ...Read more
Author:Taylor, NJ; Annandale, JG; Vahrmeijer, JT; Gush, Mark BDate:Dec 2012The quantification of water use of citrus orchards is important in order to prevent stress developing in the orchard and to avoid wasting precious water resources. Measurement of citrus orchard water use is not possible under all environ-mental ...Read more
Author:Veerasamy, Namosha; Eloff, JPHDate:Jul 2008Information warfare has surfaced as an emerging concept that affects not only military institutions but ordinary organisations as well. Information warfare in itself consists of various components ranging from its electronic and psychological ...Read more
Author:Moodley, K; Land, K; Muzenda, EDate:Oct 2015The use of multiplexed paper sensors for health and environmental monitoring applications continues to rise. Multiplexed devices are capable of detecting multiple disease biomarkers or contaminants from a single sample. These devices make ...Read more
Author:Musango, JK; Amigun, B; Brent, ACDate:Jul 2010This paper presents a Bioenergy Systems Sustainability Assessment and Management (BIOSSAM) model. The BIOSSAM model was developed as a means to provide insights into the implications of expanding bioenergy programmes in South Africa, which ...Read more
Author:Botha, Natasha; Coetzer, R; Inglis, H; Labuschagne, JDate:Nov 2020Polymers are used in various industrial applications due to their ease of production, light weight and ductility. Adding fillers, such as clays, improves a range of thermo-mechanical properties, however manufacturing parameters may have an ...Read more
Author:Nortje, Karen; Claassen, Marius; Funke, Nicola S; Jacobs-Mata, Inga M; Steyn, MaronelDate:Jan 2011The social processes embedded within the ‘thinking’ and ‘doing’ of humans in relation to the use of common property resources such as the natural environment has been proven to be essential for both a holistic understanding as well as mutually ...Read more