Author:Karsten, AE; Singh, ADate:May 2013Laser based treatment modalities offer patients a less invasive, often localised treatment method. This has advantages of faster healing times and fewer side effects from treatment. For most laser treatments though the target site is some ...Read more
Author:Landwehr, Gregory B; Wright, Jarrad GDate:May 2018The CSIR is embarking on a project to develop a localised system operator variable renewable energy (VRE) forecasting model. Forecasting improvement requires detailed understanding of local weather anomalies and systems with best of breed ...Read more
Author:Bischof-Niemz, TDate:Nov 2015South Africa’s power system is currently under severe constraints, and at the same time, the Department of Energy is procuring new generation capacity and has already allocated a total of 8.1 GW of renewables (mainly wind & PV) for procurement ...Read more
Author:Smith, Andrew C; Foko, Thato E; Van Deventer, ADate:Nov 2008Earlier studies discovered that South African testees from community schools do not have the required skills to participate in tertiary education and also lack many of the basic skills to compete successfully in certain sectors of society. ...Read more
Author:Nel, M; Theron, BertusDate:Sep 2009A fibre optic power meter calibration has several uncertainty contributors associated with it. In order to assign a realistic uncertainty to the calibration result it is necessary to realistically estimate the magnitude of each uncertainty ...Read more
Author:Nkosi, MC; Lysko, Albert ADate:Sep 2015Understanding radio wave propagation is important for the design and implementation of reliable wireless communication systems. This paper describes transmission coefficient quantification. Measurements were done by using two antennas placed ...Read more
Author:Seleka, T; Pityana, Sisa L; Ulbrich, M; Rampedi, LDate:Nov 2007An AISI 420 martensitic stainless steel, 0.6 mm thick was melted with a 4.4 Kw continuous wave Nd: Yag laser in order to induce a certain proportion of retained austenite in a matrix. The volume percentage of the retained austenite in the ...Read more
Author:Bachoo, AK; De Villiers, JP; Nicolls, F; Le Roux, Francois PJDate:Apr 2011This work aims to evaluate the improvement in the performance of tracking small maritime targets due to real-time enhancement of the video streams from high zoom cameras on pan-tilt pedestal. Due to atmospheric conditions these images can ...Read more
Author:De Villiers, JP; Bachoo, AK; Nicolls, FC; Le Roux, FPJDate:Apr 2011Omnidirectional camera systems are used to supplement RADAR in tracking small craft close in to the ship in a maritime environment. They can simultaneously track multiple targets to provide a more complete situational awareness. Due to their ...Read more
Author:Mabaso, M; Twala, B; Withey, Daniel JDate:Sep 2013Tracking of multiple bright particles (spots) in fluorescence microscopy image sequences is seen as a crucial step in understanding complex information in the cell. However, fluorescence microscopy generates high a volume of noisy image data ...Read more
Author:Jamison, Kevin A; Rossouw, Pieter S; Miles, EliznaDate:Sep 2017When a new store is integrated with an aircraft, it is necessary to verify that it separates safely for all possible release and emergency jettison scenarios. A large number of store separation analyses are required to comply with this ...Read more
Author:Jamison, Kevin A; Rossouw, Pieter S; Miles, EliznaDate:Sep 2017When a new store is integrated with an aircraft, it is necessary to verify that it separates safely for all possible release and emergency jettison scenarios. A large number of store separation analyses are required to comply with this ...Read more
Author:Dudley, Angela L; Schulze, C; Litvin, I; Duparré, M; Forbes, ADate:Aug 2013Although many techniques are efficient at measuring optical orbital angular momentum (OAM), they do not allow one to obtain a quantitative measurement for the OAM density across an optical field and instead only measure its global OAM. Numerous ...Read more
Author:McLaren, M; Romero, J; Giovannini, D; Galvez, EJ; Padgett, MJ; Forbes, ADate:Jul 2013Typically, a Gaussian mode is used to pump a non-linear crystal to produce pairs of entangled photons. We demonstrate orbital angular momentum (OAM) entanglement when a non-fundamental mode is used to pump a non-linear crystal. An approximation ...Read more
Author:Klarman, S; Meyer, TDate:Jun 2014SQL:2011, the most recently adopted version of the SQL query language, has unprecedentedly standardized the representation of temporal data in relational databases. Following the successful paradigm of ontology-based data access, we develop ...Read more
Author:Salmon, BP; Olivier, JC; Kleynhans, W; Wessels, Konrad J; Van den Bergh, FDate:Jul 2009This paper shows that a feedforward Multilayer Perceptron (MLP) operating over a temporal sliding window of multispectral time series MODerate-resolution Imaging Spectroradiometer (MODIS) satellite data is able to detect land cover change ...Read more
Author:Nienaber, S; Funke, Nicola SDate:01 Sep 2010The South African water sector faces challenges that need to be addressed through effective policy development and implementation. Sound evidence, based on researched consideration of issues and solutions, is an important input to policy ...Read more
Author:Chakwizira, JDate:Jul 2007This paper is concerned with the road traffic congestion problems and de-congestion initiatives in the Greater Johannesburg Area (GJA). A rapid appraisal of the traffic congestion and de-congestion map and atlas of the GJA was conducted with ...Read more