Author:Creig-Smith, SDate:Apr 2001Underground steel water pipelines that are not suitably coated and lined will corrode after a certain period of time, externally where the steel is in contact with the soil and internally where the steel is in contact with water. Such corrosion ...Read more
Author:Ratshidaho, T; Tapamo, JR; Claassens, J; Govender, NatashaDate:Oct 2012We present three approaches for ego-motion estimation using Time-of-Flight (ToF) camera data. Ego-motion is defined as a process of estimating a camera’s pose (position and orientation) relative to some initial pose using the camera’s image ...Read more
Author:Du Plessis, WP; Odendaal, JW; Joubert, JDate:Jan 2010The matching required between the two directions through a retrodirective cross-eye jammer is considered using both the traditional phase-front analysis and an extended analysis. The design parameters to achieve a specified tracking error are ...Read more
Author:Agnew, M; Leach, J; McLaren, M; Roux, FS; Boyd, RWDate:Dec 2011Systems entangled in high dimensions have recently been proposed as important tools for various quantum information protocols, such as multibit quantum key distribution and loophole-free tests of nonlocality. It is therefore important to have ...Read more
Author:Van Niekerk, D; Barnard, EDate:May 2012The authors investigate the acoustic realisation of tone in short continuous utterances in Yoruba. Fundamental frequency contours are extracted for automatically aligned syllables from a speech corpus of 33 speakers collected for speech ...Read more
Author:Butgereit, L; Coetzee, L; Olivrin, GDate:Aug 2011Human beings exert a sense of ownership over the “things” in their lives. They own books, tennis rackets, cell phones, and handbags just to name a few. They transport these “things” from home to the office and, then, to recreational areas. ...Read more
Author:Afrika, MDate:Feb 2010The current poor state of waste service delivery by South African municipalities is a concern due to the potential impacts on human health and the environment. All municipalities are faced with similar challenges including lack of funding, ...Read more
Author:De Jager, PetaDate:Oct 2007Service delivery in the healthcare sector is profoundly affected by the built infrastructure provided to support it. In order for a hospital environment to function optimally, a key question is, is the infrastructure "fit for purpose"? This ...Read more
Author:De Jager, PetaDate:Oct 2007Service delivery in the healthcare sector is profoundly affected by the built infrastructure provided to support it. In order for a hospital environment to function optimally, a key question is, is the infrastructure "fit for purpose"? This ...Read morecb
Author:Murambadoro, M; Faccer, KDate:Nov 2011Members of the South African Risk and Vulnerability Atlas were involved in a meeting aimed at the development of a toolkit towards improved integration of climate change into local government's integrated development planning (IDP) process.Read more
Author:Edwards, AL; Franz, RM; Schutte, PC; Steenkamp, TDate:Jul 2009Some of the main reasons for occupational health and safety deficiencies in small-scale mining are unawareness of risks of chronic occupational diseases and inadequately implemented education and training. The key needs of the sector is to ...Read more
Author:Steyn, Maronel; Walters, Chavon RDate:Feb 2022Industrial water reuse in South Africa is lagging. Currently, very little to no data exists regarding wastewater reuse options, treatment options and capabilities, or costs – which can be used for decision-making. In response to this, a ...Read more
Author:Fernandes, PJLDate:Sep 1996A gear is a machine element designed to transmit force and motion from one mechanical unit to another. The design and function of gears are usually closely associated, since gears are designed for a specific function. Various types of gears ...Read more
Author:Sefara, Tshephisho J; Rangata, Mapitsi RDate:Aug 2023Twitter is one of the microblogging sites with millions of daily users. Broadcast companies use Twitter to share short messages to engage or share opinions about a particular topic or product. With a large number of conversations available ...Read more
Author:De Waal, A; Mouton, FDate:Nov 2013In this paper the authors provide context to Topic Modelling as an Information Warfare technique. Topic modelling is a technique that discovers latent topics in unstructured and unlabelled collection of documents. The topic structure can be ...Read more
Author:Moodley, Avashlin; Marivate, Vukosi NDate:Nov 2019In election cycles, the political-themed articles published by news providers present a rich source of information about election discourse. Extracting useful themes from a large article corpus manually is infeasible, text mining techniques ...Read more
Author:Burke, Michael G; Sabatta, DDate:Nov 2015Conference scheduling and organising is a particularly laborious task and can be exteremely time consuming. While many online conference platforms allow manual topic selection, these can be expensive and typically still require that individual ...Read more
Author:Land, KJ; Mbanjwa, MM; Korvink, JGDate:Oct 2013A novel use for topological structures inside microfluidic channels is presented. These structures have been successfully utilised to aid in mixing of two water-in-oil emulsions in order to force coalescence, thereby introducing a cross linker ...Read more