Author:Waldeck, LDate:Aug 2013This presentation provides an overview of Urban Growth Simulation as a risk free means of assessing the future outcome of major policy and investment decisions with some examples of scenarios that were simulated in different South African cities.Read more
Author:Waldeck, LDate:Nov 2013This presentation provides an overview of Urban Growth Simulation as a risk free means of assessing the future outcome of major policy and investment decisions with some examples of scenarios that were simulated in different South African ...Read more
Author:Blouw, SDate:Feb 2007The vision and mission behind this paper, is to develop a globally competitive fibre industry, with cutting edge technologies, expertise and innovative solutions for the fibre industry. Flax is cultivated in wide range of soils. It requires ...Read more
Author:Thwala, Melusi; Musee, N; Sikhwivhilu, L; Wepener, VDate:Aug 2013The toxicity effects of silver (nAg) and zinc oxide (nZnO) engineered nanoparticles (ENPs) on the duckweed Spirodela punctuta were studied to investigate the potential risks posed by these ENPs towards higher aquatic plants. The influence of ...Read more
Author:Matseke, Mphoma SDate:Oct 2019The main aim of this work was to synthesize carbon supported CoFe(sub2-x) Ni(subx)o(sub4) nanoparticles with high catalytic activity for ORR in alkaline mediaRead more
Author:Zheng, Haitao; Rohwer, Mark B; Mathe, Mahlanyane KDate:31 Aug 2010Alloyed electrocatalysts such as PtNi/C[1-2], PtCo/C[3], PtCr/C[4], PtFe/C [5-6], and non-alloyed Pt-TiO2/C were reportedly investigated for methanol tolerance during Oxygen reduction reaction (ORR). The high methanol tolerance of these ...Read more
Author:Zunckel, M; Emberson, LD; Sowden, MDate:Jun 2006The Cross Border Impact Assessment Project (CAPIA) was designed to develop an understanding of regional surface ozone concentrations and their potential risk to agriculture in southern Africa. Surface ozone concentrations were estimated using ...Read more
Author:Akpakwu, GA; Hancke, GP; Silva, BJ; Abu-Mahfouz, Adnan MIDate:Jul 2016The concept of data distribution within cluster of sensor nodes to the source sink has resulted to intense research in Wireless Sensor Networks (WSNs). In this paper, in order to determine the scheduling length of packet distribution, a ...Read more
Author:Freiboth, H; Goedhals-Gerber, LL; van Dyk, E; Dodd, MDate:Oct 2014A large amount of fruit and money is lost every season due to breaks in the South African fruit export cold chain. With food security becoming an ever growing concern, especially in developing countries like South Africa, a high percentage ...Read more
Author:Gerrand, Jonathan D; Williams, Quentin R; Lunga, D; Pantanowitz, A; Madhi, S; Mahomed, NDate:Jul 2017Within developing countries, there is a realistic need for technologies that can assist medical practitioners in meeting the increasing demand for patient screening and monitoring. To this end, computer aided diagnosis (CAD) based approaches ...Read more
Author:Forbes, A; Du Preez, NC; Belyi, VN; Botha, LRDate:Aug 2009In this paper the researchers present results on improved paint stripping performance with an intra-cavity generated Flattened Gaussian Beam (FGB). A resonator with suitable diffractive optical elements was designed in order to produce a ...Read more
Author:Olukanmi, PO; Nelwamondo, Fulufhelo V; Marwala, TDate:Jan 2019The Partitioning Around Medoids (PAM) clustering algorithm is well-known for its robustness and accuracy, but it is computationally expensive. This paper proposes a fast and accurate version, named PAM-lite. Like CLARA which also addresses ...Read more
Author:Govindasamy, K; Potgieter, S; Kumar, S; Land, K; Muzenda, EDate:Sep 2012Microfluidics has found widespread application in the fields of molecular biology, DNA analysis and most recently, point of care diagnostics. We present a paper based microfluidic device for rapid, in-the-field detection of pathogenic bacteria ...Read more
Author:Wiederoder, MS; Smith, S; Madzivhandila, P; Mager, D; Moodley, K; DeVoe, DL; Land, KJDate:Oct 2016This study describes a novel hybrid paper-polymer centrifugal microfluidic device for pre-concentration of E.coli and lateral flow immunoassay enhancement for water quality verification. The device balances rotational centrifugal force with ...Read more
Author:Hamadou Ibrahim, A; Roux, FS; Konrad, TDate:Aug 2011he orbital angular momentum (OAM) state of light can potentially be used to implement higher dimensional entangled systems for quantum communication. Unfortunately, optical fibers in use today support only modes with zero OAM values. Free-space ...Read more
Author:Bidgood, Peter M; Nel, ALDate:Sep 2013The current trend in balance calibration-matrix generation is to use non-linear regression and statistical methods. Methods typically include Modified-Design-of-Experiment (MDOE), Response-Surface-Models (RSMs) and Analysis of Variance (ANOVA). ...Read more
Author:Adebiyia, DI; Fatoba, O; Pityana, Sisa L; Popoola PDate:Jun 2016Silicon carbide (SiC), has excellent mechanical properties such as high hardness and good wear resistance, and would have been a suitable laser-coating material for titanium alloy to enhance the poor surface hardness of the alloy. However, ...Read more
Author:Shatalov, M; Greeff, JC; Joubert, SV; Fedotov, IDate:Sep 2008In this paper a mathematical model describing the interaction of a lion population with that of the zebra and wildebeest populations is considered. The traditional method uses a model with known coefficients and a CAS numerical routine to ...Read more
Author:Butgereit, LDate:Dec 2006Parent Run Science Clubs: A case study at Nooitgedacht 88 Primary School is a presentation case study presentation that will facilitate national, economic and social improvement through human capital developmentRead more