Author:Gibberd, Jeremy TDate:Dec 2020Many areas of South Africa experience water shortages and unreliable water supplies. Water and sanitation costs at South African municipalities have been steadily rising in the last 5 years and are particularly high in water-stressed areas ...Read more
Author:Land, K; Hugo, S; Mbanjwa, M; Fourie, LDate:Oct 2012Microfluidics refers to the manipulation of very small volumes of fluid. Microfluidics is
at the forefront of developing solutions for drug discovery, diagnostics (from glucose
tests to malaria and TB testing) and environmental diagnostics ...Read more
Author:Madzivhandila, Phophi; Smith, Suzanne; Roux, Pieter; Land, Kevin; Wiederoder, MichaelDate:Nov 2016We present modular centrifugal microfluidic devices that enable a series of blood tests to be performed towards a full blood count. The modular approach allows for rapid prototyping of device components in a generic format to complete different ...Read more
Author:De Ronde, Willis; Swart, JHDate:Nov 2016Building a robotic platform from raw materials can take anything from a few weeks to a few years to complete, depending on the complexity and size of the platform. This paper aims to introduce a novel approach of using abrasive waterjet ...Read more
Author:Hugo, S; Land, K; Madou, M; Kido, HDate:Oct 2013The work presented here details the implementation of a centrifugal microfluidic platform – the first of its kind in South Africa – as a foundation for the development of various microfluidic operations. Microfluidic systems enable the precise ...Read more
Author:Awuor, F; Djouaniy, K; Noelz, G; Olwal, TDate:Sep 2011Nodes in ad hoc networks are autonomous and selfconfiguring with no form of centralized administration such that nodes are free to selfishly optimize their individual utilities without considering utilities of other network users. This compels ...Read more
Author:Canbulat, I; Dlokweni, TDate:Sep 2002It is standard practice in the majority of rock engineering applications to use a rock mass classification method to evaluate the condition of rock, i.e. to quantify, in an objective manner, the characteristics of good or bad roof. These ...Read more
Author:Wall, K; Rust, CDate:Dec 2015In 2006 the South African Institution of Civil Engineering (SAICE), in partnership with the Council for Scientific and Industrial Research (CSIR), released the first ever “report card” assessment rating of the condition of engineering ...Read more
Author:Perlow, J; Rosman, Benjamin S; Hayes, B; Ranchod, PDate:Nov 2017An important step in the construction of novel objects is the ability to recognise combinations of raw materials which are likely to be useful. We aim to exploit the intuition that the visual characteristics of candidate raw materials provide ...Read more
Author:Charyulu, DV; Sivakumar, V; Bencherif, H; Narayano Rao, DDate:Aug 2007In this paper, the authors report the statistical characteristics of Stratospheric Sudden Warming (SSW) events observed over a low latitude station, Gadanki; 13.5°N, 79.2°E. The study uses 7 years (1998 to 2004) of quasi-continuous nighttime ...Read more
Author:Sivakumar, V; Bencherif, H; Acharyulu, DV; Hauchecorne, A; Rao, DN; Sharma, S; Rao, PBDate:Jul 2006First observation of the Stratospheric Sudden Warming (SSW) was made by Scherhag in 1952, using radiosonde measurements over Berlin. Schoeberl (1978) provided a review on theory and observations of stratospheric warming using results reported ...Read more
Author:Shatalov, M; Schiesser, W; Polyanin, A; Fedotov, IDate:Jul 2011New exact solutions of equations of longitudinal vibration of conical and exponential rod are obtained for the Rayleigh-Love model. These solutions are used as reference results for checking accuracy of the method of lines. It is shown that ...Read more
Author:Amezaga, JM; Harrison, J; Von Maltitz, Graham P; Tennigkeit, T; Tiwari, S; Windhorst, KDate:Jun 2009Re-Impact "Rural Energy Production from Bioenergy Projects" is a project funded by the European Union Aid Cooperation office which is promoting a sustainability assessment framework for bioenergy projects focussed on rural development in ...Read more
Author:Nortje, R; Britz, K; Meyer, TDate:Dec 2013In this paper we investigate module extraction for the Description Logic SRIQ. We formulate modules in terms of the reachability problem for directed hypergraphs. Using inseperability relations, we investigate the module-theoretic properties ...Read more
Author:De Wet, Febe; Muller, P; Van der Walt, C; Niesler, TDate:Aug 2011The authors investigate the effectiveness of using an accepted readability index, the Flesch Reading Ease (FRE) scale, to design prompts for an automatic oral proficiency assessment system. The prompts in question are uttered by the system, ...Read more
Author:Malik, HH; Erasmus, Louwrence D; Pretorius, J-HCDate:Sep 2016The purpose of this study is to explore and gain a broad perspective on the systems engineering methods currently employed at a South African research council. The aim is to question if these methods are ideal by comparing them with their ...Read more
Author:Botha, PB; Semmelink, CJ; Raubenheimer, JDate:Oct 2005"Detrimental carbonation" manifests itself by the loss of cementitious stabilization and the forming of loose powdery layers which lead to debonding of the surfacing. Up till now this was seen to be caused by poor curing techniques by contractors ...Read more
Author:Unknown authorDate:Nov 2002Solving the environmental problems of industrialised countries will not mean much if your very survival is threatened by the social fall-out of an exploitative economic growth model. One does not fight terrorism and hatred with violence, but ...Read more