Author:Kiarii, EM; Govender, Krishna; Ndungu, PG; Govender, PGDate:Apr 2017A systematic study of electronic and optical properties of titanium dioxide under visible light was simulated using the first principles calculations. Both electronic and optical properties were studied. The findings support the application ...Read more
Author:Hendriks, A; Naidoo, Darryl; Roux, FS; Löpez-Mariscal, C; Forbes, ADate:Aug 2012Phase-only spatial light modulators are now ubiquitous tools in modern optics laboratories, and are often used to generate so-called structured light. In this work we outline the use of a phase-only spatial light modulator to achieve full ...Read more
Author:Ngcobo, Sandile; Ait-Ameur, K; Forbes, ADate:Jul 2012This work deals with the generation of symmetrical high order Laguerre Gaussian modes. These high order Laguerre-Gaussian beams are generated by forcing the laser using an annular binary Diffractive Optical Element whose geometry is in ...Read more
Author:Bell, Teboho; Forbes, A; Ngcobo, SandileDate:Oct 2015The solid state digital laser was used in generation of Laguerre-Gaussian modes, LGpl, of different orders. This work demonstrates that we can generate high-order Laguerre-Gaussian modes with high purity using a digital laser.Read more
Author:Tedesco, P; Cula, J; Ménesguen, C; Penven, P; Krug, Marjolaine JDate:Nov 2019This study addresses the dynamics of the Agulhas inshore front in the submesoscale range upstream of 26 E. Submesoscale frontal eddies are observed in the vicinity of Port Elizabeth (26 E) from satellite images and in observations collected ...Read more
Author:Duvenhage, BDate:Nov 2014The real-time super-resolution technique discussed in this paper increases the effective pixel density of an image sensor by combining consecutive image frames from a video. In surveillance, the higher pixel density lowers the Nyquist rate ...Read more
Author:Burke, Michael GDate:Sep 2017This work introduces a generative Bezier curve model suitable for surf-zone curve tracking in coastal image sequences. The model combines an adaptive curve parametrised by control points governed by local random walks with a global sinusoidal ...Read more
Author:Van Der Merwe, A; Kotzé, Paula; Gerber, ADate:Oct 2007The identification of process model structures is usually complex and costly. If these structures can be reused across boundaries, this could not only benefit the internal structure of one application domain, but could also benefit organizations ...Read more
Author:Ruxwana, N; Herselman, Martha E; Pottas, DDate:Jul 2011The e-health evolution has the potential to aid management of scarce resources and improve quality if services within healthcare. However, their implementation continues to fail. Amongst other reasons, the lack of project quality management ...Read more
Author:Ruxwana, N; Herselman, Martha E; Pottas, DDate:May 2013Although e-health can potentially facilitate the management of scarce resources and improve the quality of healthcare services, implementation of e-health programs continues to fail or not fulfi l expectations. A key contributor to the failure ...Read more
Author:Ndiaye, M; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Jul 2019Software-defined networking (SDN) promises a wide range of application benefits to the Internet of Things (IoT) including the flexible management of wireless sensor networks (WSNs). While the integration of SDN techniques in WSNs is being ...Read more
Author:Naidoo, NDate:Mar 2012An investigation was undertaken to study the rooting ability of E. grandis x E. longirostrata hybrid cuttings. The plant material was sourced from five families in seedling derived hedges at two nurseries, as well as five families coppiced ...Read more
Author:Mashiane, T; Pillay, NDate:Nov 2014Password cracking is the term commonly used to describe the illegal action of gaining access to clear text versions of user passwords. Hackers are notorious for stealing encrypted passwords and cracking them. The same action of password ...Read more
Author:Le Roux, Wouter J; Chan, WY; De Maayer, P; Venter, SNDate:Mar 2013Vibrio cholerae, a Gram-negative pathogen autochthonous to the aquatic environment, is the causative agent of cholera. Here, we report the complete genome sequence of V. cholerae G4222, a clinical isolate from South Africa.Read more
Author:Barros, E; Morris, EJDate:2014The fastest growing use of maize is for the production of fuel ethanol using the enzymatic conversion of corn starch to glucose and then to ethanol as well by converting the cellulosic (non-food) parts of maize to ethanol. However for the ...Read more
Author:Mahaye, Ntombikayise; Thwala, Melusi; Cowan, DA; Musee, EuniceDate:Jul 2017Engineered nanoparticles (ENPs) are an emerging class of environmental contaminants, but are generally found in very low concentrations and are therefore likely to exert sub-lethal effects on aquatic organisms. In this review, we: (i) highlight ...Read more
Author:Walters, Michele; Scholes, RJDate:2017This book is based on the collective knowledge of the GEO BON network of volunteers, working towards the establishment of a global, sustainable observation system for monitoring changes in biodiversity.Read more
Author:Zhao, T; Debba, Pravesh; Stein, ADate:Jul 2008Spatial sampling optimization is an important issue for both geo-chemists and geo-statisticians. Many spatial sampling optimization methods have been previously developed. In this paper, we present a spatial simulated annealing method is ...Read more