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:Vogt, T; Pieters, R; Newman, Brent KDate:Apr 2018Polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were analysed from sediment samples collected in 2012 from rivers, surface runoff canals and estuaries in three highly urbanised ...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:Modibedi, Remegia M; Ozoemena, KI; Mathe, Mahlanyane KDate:2013Direct alcohol alkaline fuel cells (DAAFCs) are potential power sources for a variety of portable applications as they provide unique advantages over hydrogen-based fuel cell devices. Alcohols (such as methanol, ethanol, ethylene glycol, and ...Read more
Author:Zeevaart, JG; Parkinson, CJ; De Koning, CBDate:24 May 2004The coupling reaction between ethyl acetoacetate and a number of aryl halides in the presence of palladium acetate, a bulky and electron rich phosphine and K3PO4 is described. The arylated acetoacetate ester is de-acylated under the reaction ...Read more
Author:Zeevaart, JG; Parkinson, CJ; De Koning, CBDate:07 Mar 2005Alpha-Arylation of inethanesulfonamides using palladium catalysis is described. For example, treatment of N-benzyl-Nmethylmethanesulfonamide with catalytic Pd (OAc) (2) in the presence of sodium tert-butoxide, triphenylphosphine and toluene ...Read more
Author:Henriques, R; Griffiths, C; Rego, EH; Mhlanga, MusaDate:May 2011Live-cell fluorescence light microscopy has emerged as an important tool in the study of cellular biology. The development of fluorescent markers in parallel with super-resolution imaging systems has pushed light microscopy into the realm of ...Read more
Author:Henriques, R; Mhlanga, MusaDate:Jun 2009Super-resolution imaging allows the imaging of fluorescently labeled probes at a resolution of just tens of nanometers, surpassing classic light microscopy by at least one order of magnitude. Recent advances such as the development of ...Read more
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