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
Author:Van Deventer, Heidi; Cho, Moses A; Mutanga, ODate:Sep 2015Indigenous forests of South Africa occur in one of the smallest biomes covering less than 0.5% of the total surface area of the country. Regardless of the small and narrow extent of these forests, they offer a range of ecosystem services, ...Read more
Author:Debba, PraveshDate:Aug 2008At this presentation, the author discussed a statistical method for deriving optimal spatial sampling schemes. First I focus on ground verification of minerals derived from hyperspectral data. Spectral angle mapper (SAM) and spectral feature ...Read more
Author:De Klerk, HM; Gilbertson, J; Lück-Vogel, Melanie; Kemp, J; Munch, ZDate:Nov 2016Traditionally, to map environmental features using remote sensing, practitioners will use training data to develop models on various satellite data sets using a number of classification approaches and use test data to select a single ‘best ...Read more
Author:Roberts, W; Lück-Vogel, MelanieDate:Jun 2010Integrated coastal management (ICM) is a process for the management of the coast using an integrated approach, regarding all aspects of the coastal zone, including geographical and political boundaries, in an attempt to achieve sustainability.Read more
Author:Munyati, C; Shaker, P; Phasha, MGDate:May 2011Healthy rangelands are of economic and biodiversity conservation importance in the savannas of northern South Africa. The proliferation of woody plant species on the rangelands, known as bush encroachment, constitutes a degradation of rangeland ...Read more
Author:Debba, PraveshDate:Sep 2008Statistics is the science pertaining to the collection, summary, analysis, interpretation and presentation of data. Some of the key questions in environmental studies are: where to sample, what to sample
and how many samples to obtain. ...Read more
Author:Naidoo, R; Sithole, Bishop B; Obwaka, EDate:Mar 2016The report focuses on optimisation of alkali catalysis as a process for producing biodiesel from waste cooking oils. Biodiesel production parameters that were optimised were methanol to oil ratio, catalyst concentration, reaction temperature, ...Read more
Author:Schmitz, P; Cooper, Antony K; Quick, GJDate:Dec 2002In South Africa, as with may developing countries, there are informal settlements on the fringes of some towns and cities. Maps of these areas generally do not exist, making it difficult for authorities to plan for, and work in, these areas. ...Read more
Author:Baumbach, J; Lubbe, MDate:Feb 2006A camouflage field trial experiment was conducted. For the experiment several targets were deployed along tree lines and in an open field. Some of the vehicles were deployed with a variety of camouflage nets, while others were left uncovered. ...Read more
Author:Schmitz, P; Marais, Mario A; De la Rey, ADate:Feb 2006This is a concept poster which examines the use of supply chain management in planning and managing large or data-intensive Geographic Information System (GIS) projects. Current management models in GIS are either on an organisational or a ...Read more
Author:Van Zyl, TL; Vahed, Anwar; Mcferren, GA; Shabangu, P; Cwele, BDate:Jul 2009Scientific Workflows provides a technology that facilitates researchers by allowing them to capture in a machine processable manner the method relating to some research. This increases both provenance and repeatability of the research and ...Read more
Author:Van Zyl, TL; Vahed, Anwar; Mcferren, GA; Shabangu, P; Cwele, BDate:Jul 2009Scientific Workflows provides a technology that facilitates researchers by allowing them to capture in a machine processable manner the method relating to some research. This increases both provenance and repeatability of the research and ...Read more
Author:Van der Vyver, AG; Williams, B; Marais, Mario ADate:Dec 2015This paper contains a qualitative analysis of selected excerpts from the managerial communication records of the Cofimvaba e-textbook project. This project is conducted in the Eastern Cape, a province of South Africa. The component managers ...Read more
Author:Van Heerden, QuintinDate:Dec 2015Transport- and urban planning often involves the use of large-scale simulation modelling with data sources that include, among others, the national census, the National Household and Travel Survey (NHTS) as well as trip diaries. Many of these ...Read more
Author:Pauck, WJ; Venditti, RA; Pocock, J; Andrew, JEDate:2012Waste paper recycling in South Africa has grown to a respectable recovery rate of 43% in 2008. Pending legislation will further boost the recovery rate of recycled paper. Domestic household waste represents the major remaining source of ...Read more