Author:Butgereit, LDate:Oct 2008Rural Africa is in need of qualified teachers in mathematics and science for primary and secondary school. Classrooms in rural Africa are often benches under a tree. The teachers themselves often have limited education in mathematics and ...Read more
Author:Burns, James; Lück-Vogel, MelanieDate:May 2017Coastal environments form where the land, sea and atmosphere meet and interact in unique and dynamic ways. A state of dynamic equilibrium is ideally maintained by the natural ocean processes of wind, waves and tides. Human interference, leading ...Read more
Author:Burns, JamesDate:Dec 2019The coastal zone is a dynamic environment that is regulated and influenced by natural ocean processes and anthropogenic phenomena. Beaches are important elements within the coastal zone and are highly valued for the ecosystem services that ...Read more
Author:Blom, N; Haupt, G; Bogaers, Alfred EJDate:Jun 2018One of the characteristics of the 21st century is the increase in the information sources available to designers to make their design decisions. However, there is much debate about designers' choice of information that enables them to design ...Read more
Author:Smith, Andrew CDate:Feb 2007In this paper the implementation of GameBlocks is explained, a novel digital manipulative system for coding simple programme sequences to control a toy robot. A contact-less, magnetic field-based mechanism for transferring information about ...Read more
Author:Schmitz, P; Cooper, Antony KDate:Sep 2007Crime in most cases occurs close to the offenders anchor point. The number of crimes committed by an offender decreases with distance form ones anchor point. Crime types dictate the distance from the anchor points; violent crime tends to be ...Read more
Author:Oberholster, Paul J; Dabrowski, James M; Botha, A-MDate:Jan 2013The relationships between river and lake phosphorus sensitivity, environmental drivers and catchment characteristics within the upper Olifants River and Lake Loskop were studied over a period of four years to come up with mitigation and ...Read more
Author:Van Deventer, Heidi; Cho, Moses A; Lück-Vogel, Melanie; Van Niekerk, LaraDate:Jul 2016Wetland and estuarine vegetation is often difficult to detect and separate from adjacent land covers with multispectral sensors for a number of reasons. The spatial resolution of space-borne sensors is often insufficient for these features ...Read more
Author:Butgereit, LL; Botha, RADate:Sep 2011N-grams are used to quantify the similarity between two documents or the similarity between two collections of words. This paper shows how N-grams of length 3 and 4 both coupled with text processing (including stop word removal and stemming ...Read more
Author:Burke, Ivan D; Herbert, A; Mooi, Roderick DDate:Sep 2018Distributed Denial of Service (DDoS) attacks cause significant disruption on critical networks within South Africa. Timely detection and mitigation is a key concern for the SANReN Cyber Security Incident Response Team (CSIRT). This paper ...Read more
Author:Butgereit, LDate:May 2007Interns and new employees right out of university or technicians need practical experience in software development projects before they can effectively contribute to an organization's own software development. Encouraging such interns and/or ...Read more
Author:Mtsweni, Jabu SDate:Oct 2023Cyber-attacks continue to evolve, circumventing modern security solutions and exploiting discovered software vulnerabilities. Businesses and governments tend to respond in a reactive manner when dealing with these attacks, mostly due to limited ...Read more
Author:Waldeck, LDate:Sep 2014The paper discusses the evolution of an Urban Simulation Model aimed at assisting planners and decision-makers to assess the likely outcome of various metropolitan policy scenarios 30 years into the future. This will enhance long-term planning ...Read more
Author:Grobler, TL; Ackermann, ER; Van Zyl, AJ; Olivier, JC; Kleynhans, Waldo; Salmon, Brian PDate:2012Human settlement expansion is one of the most pervasive forms of land-cover change in South Africa. The use of Page’s cumulative sum (CUSUM) test is proposed as a method to detect new settlement developments in areas that were previously ...Read more
Author:Lysko, Albert ADate:Jun 2009This paper discusses application of the piecewise sinusoidal (PWS) basis function (BF) over a chain of several wire segments, for example as a multiple domain basis function. The usage of PWS BF is compared to results based on the piecewise ...Read more
Author:Sithole, Bishop B; Watanabe, CDate:Sep 2013Defoamers are often used to control or reduce foam problems in a variety of pulp and papermaking processes. It has been recognised that non-judicious use of defoamers can lead to undesirable deposition problems. Amide-based defoamers have ...Read more
Author:Sithole, Bishop B; Pimentel, J; Gibbons, S; Watanabe, CDate:Oct 2012Understanding the cause of effluent toxicity is an important requirement for its prevention, remediation and return to compliance. One component of the strategy entails identification and fingerprinting of additives or components in additives ...Read more
Author:Alberts, R; Van der Merwe, AJ; Pretorius, HDate:Nov 2006Web Engineering methodologies, tools and techniques are based on research from four decades of best practices in Software Engineering. Over the past ten years, users with disabilities have entered the market with several initiatives from ...Read more
Author:Matebese, B; Banda, MK; Utete, SDate:Oct 2012Sampling-based methods such as Rapidly-exploring Random Tree (RRT) have been successfully used in solving motion planning problems in high-dimensional and complex environments. The RRT algorithm is the most
popular and has the ability to ...Read more