Author:Thabethe, S; Linganiso, E; Motaung, D; Mashapa, MG; Nkosi, S; Arendse, CJ; Mwakikunga, Bonex WDate:Nov 2013The procedures for the synthesis of amorphous e-FeSi/Si core–shell nanofibres by vapour transport in a CVD configuration are reported. Crystallite studies by the Williamson-Hall method show the sizes to be typically about 8.0 nm which agrees ...Read more
Author:Mukwevho, N; Kumar, Neeraj; Fosso-Kankeu, E; Waanders, F; Bunt, J; Ray, Suprakas SDate:Sep 2019In this study, ZnO/g-C(sub3)N(sub4) heterostructure was synthesized with enhanced photodegradation potential for polycyclic aromatic hydrocarbons (PAHs) (viz. naphthalene) in water using visible light. The as-prepared catalysts were characterized ...Read more
Author:Kanjee, R; Bachoo, AK; Carroll, JDate:Oct 2013Adaptive Cruise Control (ACC) is a relatively new system designed to assist automobile drivers in maintaining a safe following distance. This paper proposes and validates a vision-based ACC system which uses a single camera to obtain the ...Read more
Author:Sabatta, D; Siegwart, RDate:May 2013In this paper we present a vision-based path following algorithm for a non-holonomic wheeled platform capable of keeping the vehicle on a desired path using only a single camera. The algorithm is suitable for teach and replay or leader-follower ...Read more
Author:Sabatta, DGDate:Nov 2008This paper proposes a topological mapping technique that utilises persistent SIFT features to reduce the amount of data storage required. It delivers, as an output, a topological map that lends itself well to conventional path planning ...Read more
Author:De Saxe, Christopher CDate:Sep 2018Articulated Heavy Goods Vehicles (HGVs) are more efficient than conventional rigid lorries, but exhibit reduced low-speed manoeuvrability and high-speed stability. Technologies such as autonomous reversing and path-following trailer steering ...Read more
Author:Mthombeni, Thabo DMDate:Dec 2011VisTrails is an open-source scientific workflow and provenance management system that provides support for simulations, data exploration and visualization. Whereas workflows have been traditionally used to automate repetitive tasks, for ...Read more
Author:Matyila, M; Botha, Adèle; Alberts, R; Sibiya, GDate:May 2014Mobile services and mobile content is available to diverse users in possession of the necessary mobile phones. However, some of the mobile services and mobile content is text intensive and this discounts low literate users in participation ...Read more
Author:De Saxe, Christopher; Cebon, DDate:Nov 2016Application of articulated and Long Combination Vehicles (LCVs) in challenging off-highway applications is possible with the use of path-following trailer steering. This requires an accurate estimate of trailer off-tracking, but it has been ...Read more
Author:Smith, Andrew CDate:Feb 2009Good visual perception skills are important in the effective manipulation of Tangible User Interfaces. This paper reports on the application of a test set researchers have developed specifically to quantify the visual perception skills of ...Read more
Author:Burke, Michael GDate:Mar 2011This thesis presents work completed on the design of control and vision components for use in a monocular vision-based human-following robot. The use of vision in a controller feedback loop is referred to as vision-based or visual servo ...Read more
Author:Naidoo, T; Joubert, D; Chiwewe, T; Tyatyantsi, A; Rancati, B; Mbizeni, ADate:Mar 2014Road distresses, such as potholes and edge cracks, are not only a source of frustration to drivers but also negatively impact the economy due to damage to motor vehicles and costly road repairs. Regular and rapid pavement inspection and ...Read more
Author:Thomas, A; Gerber, AJ; Van der Merwe, ADate:Nov 2015Diagrams are often studied as visual languages with an abstract and a concrete syntax (concrete syntax is often referred to as visual syntax), where the latter contains the visual representations of the concepts in the former. A formal ...Read more
Author:De Saxe, C; Cebon, DDate:Sep 2015Active control systems for heavy goods vehicles (HGVs) are becoming more sophisticated, necessitating more extensive and sophisticated instrumentation. For articulated HGVs, articulation angle sensing is crucial for most such systems and ...Read more
Author:Dawlal, Pranitha; Brabet, C; Thantsha, MS; Buys, EMDate:Jan 2019Consumption of fumonisin-contaminated foods has a negative influence on the health of humans (carcinogen; oesophageal cancer in Eastern Cape in South Africa). Lactic acid bacteria (LAB) have emerged as a promising natural detoxification agent ...Read more
Author:Shibayama, Y; Fanucchi, Stephanie; Mhlanga, MusaDate:2017Enhancers are principal regulators that allow spatiotemporal tissue-specifi c control of gene expression. While mounting evidence suggests that enhancer-derived long noncoding RNAs (long ncRNAs), including enhancer RNAs (eRNAs), are an important ...Read more
Author:Roux, FSDate:Feb 2014Optical vortices are always created or annihilated in pairs with opposite topological charges. However, the presence of such a vortex dipole does not directly indicate whether they are associated with a creation or an annihilation event. Here ...Read more
Author:Roux, FSDate:Feb 2014This presentation discusses the vitality of optical vortices to distinguish between vortex dipole creation and annihilation events. Vitality is expressed in terms of the transverse 1st and 2nd order derivatives of the optical field. It can ...Read more
Author:Simo, A; Mwakikunga, Bonex W; Sone, BT; Julies, B; Madjoe, R; Maaza, MDate:May 2014Mott-type VO(sub2) oxide nanobelts are demonstrated to be effective hydrogen gas sensors at room temperature. These nanobelts, synthesized by hydrothermal process and exhibiting the VO(sub2) (A) crystallographic phase, display room temperature ...Read more