Author:Clarke, BCDate:Mar 1989This report was prepared as a result of a research undertaken in both the catchment and the estuary. The prime motivation for this work has been the need to estimate the impact of the dams on the ecology of the river and estuary and on the ...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:Burke, Michael G; Lasenby, JDate:Oct 2015This paper introduces a pantomimic gesture interface, which classifies human hand gestures using unmanned aerial vehicle (UAV) behavior recordings as training data. We argue that pantomimic gestures are more intuitive than iconic gestures and ...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:Land, Kevin JDate:2019This book explores the status of paper-based diagnostic solutions, or Microfluidics 2.0. The contributors explore: how paper-based tests can be widely distributed and utilized by semi-skilled personnel; how close to commercial applications ...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:Meissner, RichardDate:Jan 2017In this introductory chapter, I will talk about the nature of water research in the South African context. In short, research scientists study water resource management in its various facets to ameliorate problems that could negatively affect ...Read more
Author:Ibrahim, AH; Roux, FS; Konrad, TDate:Nov 2014When a pair of photons that are entangled in terms of their transverse modes, such as an orbital angular momentum (OAM) basis, propagates through atmospheric turbulence, the scintillation causes a decay of the entanglement. Here, we use ...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:Page, Philip R; Abu-Mahfouz, Adnan MI; Yoyo, SonwabisoDate:Sep 2017Reducing pressure in a water distribution system leads to a decrease in water leakage, decreased cracks in pipes, and consumption decreases. Pressure management includes an advanced type called remote real-time control. Here pressure control ...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:Klein, Peter; Roos, TH; Sheer, TJDate:Aug 2015The development of a high temperature Thermal Energy Storage (TES) system will allow for high solar shares in Solar Gas Turbine (SGT) plants. In this research a pressurised storage solution is proposed that utilises a packed bed of alumina ...Read more
Author:Klein, Peter; Roos, TH; Sheer, TJDate:Aug 2015The development of a high temperature Thermal Energy Storage (TES) system will allow for high solar shares in Solar Gas Turbine (SGT) plants. In this research a pressurised storage solution is proposed that utilises a packed bed of alumina ...Read more
Author:Folorunso, O; Hamam, Y; Sadiku, R; Ray, Suprakash S; Joseph, ADate:Jul 2019The problem associated with mixtures of llers and polymers is that they result in mechanical degradation of the material (polymer) as the ller content increases. This problem will increase the weight of the material and manufacturing cost. ...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:Dada, M; Popoola, P; Mathe, Ntombizodwa R; Pityana, Sisa L; Adeosun, SDate:Aug 2020In this study, a full-factorial design of experiments was systematically structured to optimize the laser processing parameters of additively manufactured high entropy alloys by determining the impact of these parameters on the mechanical ...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