Author:Whitfield, AK; Harrison, TDDate:Jun 2003The ichthyofauna of the Thukela Estuary, a small (55 ha), shallow (<1_5 m) system on the KwaZulu-Natal coast (mean annual river runoff of 3865_106m3, from a large catchment of29 000km2, is seasonal: peak inputs occurring between November and ...Read more
Author:Abia, ALK; Ubomba-Jaswa, Eunice; du Preez, M; Momba, MNBDate:Dec 2015Purpose
Sediments have been shown to contribute to the microbial quality of the water column during resuspension and serve as reservoirs for potentially pathogenic organisms. Currently, definitive guidelines regarding microbial indicators ...Read more
Author:Ashton, PJDate:Jul 2007South Africa is richly endowed with an array of natural resources, with one exception - water. In South African water law, a river system and its associated riverine biodiversity - i.e. the entire aquatic ecosystem - is regarded as the ‘water ...Read more
Author:Smit, KP; Van Niekerk, Lara; Harris, LR; McQuatters-Gollop, A; Shannon, LJ; Sink, KJDate:Jun 2022Despite the increasing number of tools and indicators to measure biodiversity status and trends, many developing countries struggle to initiate and advance coastal and marine assessments needed to monitor and track national and international ...Read more
Author:Mtshali, Mbali; Engelbrecht, ADate:Jan 2010In the development of mobile robotic systems, a robotic architecture plays a crucial role in interconnecting all the sub-systems and controlling the system. The design of robotic architectures for mobile autonomous robots is a challenging and ...Read more
Author:Utete, S; Green, J; Liddiard, A; Burger, Chris RDate:Sep 2013Second in the series of articles focusing on the state of robotics and automation in the BRICS countries: Brazil, Russia, India, China, and South Africa, this article provides an overview on South Africa written by researchers from the Council ...Read more
Author:Brunner, T; Roux, FSDate:Jun 2013The entangled quantum state of a photon pair propagating through atmospheric turbulence suffers decay of entanglement due to the scintillation it experiences. Here we investigate the robustness against this decay for different qutrit states. ...Read more
Author:Karsten, Carike; Bean, WL; Van Heerden, QuentinDate:Feb 2023There is a lack of dynamic facility location models for developing countries that consider the changes in the problem environment over time, such as patient population and population migration. Therefore, this paper focuses on using optimization ...Read more
Author:Lavery, MPJ; Dudley, Angela L; Forbes, A; Courtial, J; Padgett, MJDate:Sep 2011The authors have developed an interferometer requiring only minimal angular alignment for the routing of beams carrying orbital angular momentum. The Mach–Zehnder interferometer contains a Dove prism in each arm where each has a mirror plane ...Read more
Author:Seid, R; Majozi, TDate:Jan 2012Several scheduling techniques exist in literature based on continuous time representation. The models based on unit specific time points have shown better solution efficiency by reducing the number of time points and problem size. In this ...Read more
Author:Smith, Andrew CDate:May 2014The Internet of Things (IoT) holds the promise of improved programmatic user control over domestic appliances. The developed world dominates the design of programming environments, assuming letteracy and computer literacy on the part of the ...Read more
Author:Henrico, S; Coetzee, S; Cooper, Antony KDate:Oct 2021The benefits of free and open-source software for geographical information systems, such as QGIS, are appreciated by many all over the world. However, QGIS adoption in South Africa is not primarily influenced by the benefits attributed to ...Read more
Author:Taylor, JRN; Dewar, JDate:Nov 1994The cause of the high glucose to maltose ratio in sorghum malt worts was studied. Mashing temperature and pH strongly affected both the amount of glucose and the proportion of glucose relative to total fermentable sugars. The relative proportion ...Read more
Author:Geyer, JJ; Bruwer, RDate:2006The efficient design and manufacturing of injection moulds (and other tooling) requires collaboration between multi-disciplinary, geographically separated units and companies, including the company that orders plastic parts, the ones that ...Read more
Author:Theron, Andre; Engelbrecht, JeanineDate:Sep 2018Sinkholes are global phenomena with significant consequences on the natural- and built environment. Significant efforts have been devoted to the assessment of sinkhole hazards to predict the spatial and temporal occurrence of future sinkholes ...Read more
Author:Greben, JMDate:Jun 2010The author discusses a new theory of the universe in which the vacuum energy is classical origin and dominates the energy content of the universe. As usual, the Einstein equations determine the metric of the universe. However, the scale factor ...Read more
Author:Opoku, F; Govender, Krishna; van Sittert, CGCE; Govender, PPDate:Oct 2017The global dependence on exhaustible fossil fuel resources has made the search for an alternative renewable and sustainable fuel more urgent. Photocatalysis has gained increasing consideration as a promising technology to solve problems ...Read more
Author:Greesh, N; Ray, Suprakas S; Bandyopadhyay, JDate:Oct 2013This work evaluates the role of the surface properties and shape of clay type on the morphology, thermal, and thermo-mechanical properties of the polystyrene (PS)/clay nanocomposites prepared via free-radical emulsion polymerization. Attapulgite ...Read more
Author:Monteiro, Pedro MS; Dewitte, B; Scranton, MI; Paulmier, A; Van der Plas, AKDate:2011In this study the authors investigate the possible reasons for the widespread differences between the seasonal cycles of carbon production and export compared to those of hypoxia in eastern boundary upwelling systems. An idealized model is ...Read more
Author:Malwela, T; Ray, Suprakas SDate:Sep 2014This study reports the effect of organically modified nanoclay on the morphology and crystal growth behavior of biodegradable polylactide/poly[(butylene succinate)-co-adipate] (PLA/PBSA) blend thin films with the average thickness of 280 nm. ...Read more