Author:Letting, LK; Hamam, Y; Abu-Mahfouz, Adnan MIDate:Aug 2017Demand estimation in a water distribution network provides crucial data for monitoring and controlling systems. Because of budgetary and physical constraints, there is a need to estimate water demand from a limited number of sensor measurements. ...Read more
Author:Van Zijl, MC; Aneck-Hahn, NH; Swart, P; Hayward, S; Genthe, Bettina; De Jager, CDate:Nov 2017Endocrine disrupting chemicals (EDCs) are ubiquitous in the environment and have been detected in drinking water from various countries. Although various water treatment processes can remove EDCs, chemicals can also migrate from pipes that ...Read more
Author:Van Niekerk, Lara; De Villiers, P; Gordon, A; Lamberth, SJ; Adams, J; Yumat, Z; Olds, ADate:Nov 2017This is the second report on estuaries in the Western Cape State of Biodiversity Report series. Estuaries from an integral part in the ecosystem connectivity between terrestrial systems, freshwater aquatic processes, and the ocean and cannot ...Read more
Author:Mackay, F; Weerts, Steven P; Gouws, G; Maduna, SDate:Oct 2017Recent observations (1) of purported South African endemic species from south east Madagascar prompted the “Suitcase” programme, supported by the African Coelacanth Ecosystem Programme (ACEP), to investigate regional genetic connectivity of ...Read more
Author:Botha, J; Eloff, M; Grobler, MDate:Sep 2016Pro-actively finding leaked information online can potentially reduce detection times to limit the exposure time of personal information on publicly accessible networks. Often the breaches are discovered by an external third party and not the ...Read more
Author:Cooper, Antony K; Ittmann, HW; Stylianides, T; Schmitz, PDate:Oct 2009Early in 2007, the Council for Scientific and Industrial Research (CSIR) conducted an experiment to track the cellular telephones of a small group of people as they moved to and from an event, to test the viability of using such tracking to ...Read more
Author:Wright, CDate:Jul 2011From the moment we are born, we learn about the right and wrong ways of doing things in society. Using simple phrases such as ‘please’ and ‘thank you’ and abiding by more complicated ‘golden rules’ such as respecting another person’s opinion ...Read more
Author:Smith, R; Stillman, LDate:Oct 2014Through the lens of a case-study, this paper outlines some of the problems that arise when implementing ethics requirements in vulnerable communities. There is a mismatch between positivistic ethics norms and those required in the field. In ...Read more
Author:Mabuza-Hocquet, Gugulethu P; Nelwamondo, Fulufhelo V; Marwala, TDate:Feb 2017Research in iris biometrics has been focused on utilizing iris features as a means of identity verification and authentication. However, not enough research work has been done to explore iris textures to determine soft biometrics such as ...Read more
Author:Mabuza-Hocquet, Gugulethu P; Nelwamondo, Fulufhelo V; Marwala, TDate:Mar 2017The prediction and classification of ethnicity based on iris texture patterns using image processing, artificial intelligence and computer vision techniques is still a recent topic in iris biometrics. While the large body of knowledge and ...Read more
Author:Erasmus, C; Jacobs, A; Lombard, GE; Van Zyl, PJ; Reddy, JS; Nkomo, N; Timme, EMDate:Jan 2007Development of fermentation process for EPA production: The effect of fungal growth conditions on morphology and EPA production. Fungal pellets in submerged culture vary in size, texture and shape: from ellipsoidal ball shape to a biconcave ...Read more
Author:Durrheim, RJ; Cooper, GRJDate:Jul 1998Measurements of the geomagnetic field can be used to help determine the structure of the Earth, since rocks often contain magnetic minerals. Measurements of the strength of the Earth's gravitational field can also be used, since the more dense ...Read more
Author:Combrinck, ML; Dala, LN; Lipatov, IDate:Jul 2015This paper presents an Eulerian derivation of the noninertial Navier-Stokes equations for compressible flow in constant, pure rotation. The method that is presented is an extension of work done by Kageyama & Hyodo where the momentum equation ...Read more
Author:Combrinck, MA; Dala, LNDate:Sep 2014The paper presents an Eulerian derivation of the non-inertial Navier-Stokes equations as an alternative to the Lagrangian fluid parcel approach. This work expands on the work of Kageyama and Hyodo [1] who derived the incompressible momentum ...Read more
Author:Funke, Nicola S; Jacobs-Mata, Inga M; Nortje, Karen; Claassen, Marius; Steyn, MaronelDate:Oct 2010The interconnectedness of biodiversity and sustainable livelihoods for many societies around the world is constructed by the complexities of vulnerability and resilience. Society is faced by a plethora of challenges that include poverty ...Read more
Author:Steyn, DJ; Toerien, DF; Visser, JHDate:Jan 1976Algal bioassays indicated that the waters of Roodeplaat dam are severely eutrophied since algal growth potentials (AGP) of up to 200 mg/l and batch culture algal growth rate of up to 2,2 d were registered with selemastrm capricornutum as test ...Read more
Author:Matthews, MW; Bernard, StewartDate:May 2015Satellite remote sensing can make a significant contribution to monitoring water quality in South African standing water bodies. Eutrophication, defined as enrichment by nutrients, and toxin-producing cyanobacteria (blue-green algae) blooms ...Read more