Author:Michaelis, MM; Forbes, A; Conti, A; Nativel, N; Bencherif, H; Bingham, R; Kellett, B; Govender, KDate:14 Jun 2006Non-solid and non-rigid optics employ gas and liquid transmission and reflection, as well as flexible membranes to influence laser beams, laser driven particle beams and harmonic generators. Some examples are acoustic gratings, phase conjugate ...Read more
Author:Mamakoa, E; Maponya, G; Mothetha, MDate:Jul 2013Since 1994, the South African government embarked on a number of strategies, such as the Free Basic Water Support Programme and the Sustainability Guidelines for Rural Water Supply, to implement the Free Basic Water policy and speed up the ...Read more
Author:Uhrich, P; Castrignano, S; Uys, Hermann; Kastner, MDate:Aug 2017The measurement of dynamic correlation functions of quantum systems is complicated by measurement backaction. To facilitate such measurements we introduce a protocol, based on weak ancilla-system couplings, that is applicable to arbitrary ...Read more
Author:Mthunzi-Kufa, PatienceDate:Dec 2015Live mammalian cells from various tissues of origin can be aseptically and noninvasively micromanipulated via lasers of different regimes. Laser-driven techniques are therefore paving a path toward the advancement of human immunodeficiency ...Read more
Author:Anandjiwala, RD; Gonsalves, JWDate:2005In this paper the fabric buckling model proposed by Grosberg and Swani has been modified by incorporating Huang’s bending rule. The proposed model is an extension of the present model and also covers the special cases. The numerical results ...Read more
Author:Zongo, S; Sanusi, K; Britton, J; Mthunzi-Kufa, Patience; Nyokong, T; Maaza, M; Sahraoui, BDate:Aug 2015We have investigated the nonlinear optical properties, including the optical limiting behaviour for five different concentrations of laccaic acid dye in solution and a thin film obtained through doping in poly (methyl methacrylate) (PMMA) ...Read more
Author:Watson, BP; Kuijpers, JS; Henry, G; Palmer, CE; Ryder, JADate:Oct 2008Uniaxial tests performed on core from instrumented sites at Amandelbult 1 shaft, Impala 10 shaft and Union Section Spud-shaft showed a nonlinear elastic relationship between applied load and induced deformation. This nonlinear behaviour does ...Read more
Author:Casini, G; Meyer, T; Moodley, K; Varzinczak, IDate:Jul 2013The introduction of defeasible reasoning in Description Logics has been a main research topic in the field in the last years. Despite the fact that various interesting formalizations of nonmonotonic reasoning for the TBox have been proposed, ...Read more
Author:Ranchod, P; Rosman, Benjamin S; Konidaris, GDate:Oct 2015We present a method for segmenting a set of unstructured demonstration trajectories to discover reusable skills using inverse reinforcement learning (IRL). Each skill is characterised by a latent reward function which the demonstrator is ...Read more
Author:Shuttleworth, RGDate:1950The combustion of carbonaceous fuels is now recognized as occurring by means of both a heterogeneous reaction and a homogenous reaction.Read more
Author:Nortje, R; Britz, K; Meyer, TDate:Dec 2012Modularization is an important part of the modular design and maintenance of large scale ontologies. Syntactic locality modules, with their desirable model theoretic properties, play an ever increasing role in the design of algorithms for ...Read more
Author:Britz, K; Meyer, T; Varzinczak, IDate:Dec 2012One of the most successful approaches to the formalization of commonsense reasoning is the work by Lehmann and colleagues, known as the KLM approach, in which defeasible consequence relations with a preferential semantics are studied. In spite ...Read more
Author:Waterhouse, JS; Switsur, VR; Barker, AC; Carter, AHC; Hemming, DL; Loader, NJ; Robertson, IDate:Apr 2004In order to predict accurately how elevated atmospheric CO2 concentrations will affect the global carbon cycle, it is necessary to know how trees respond to increasing CO2 concentrations. In this paper, the response is examined over the period ...Read more
Author:Van Wyk, BJ; Van Wyk, MA; Van Den Bergh, FDate:Jun 2007The concept of an Image Difference Spectrum, a novel tool for the extraction of global image information, is introduced. It is shown that Image Difference Spectra are fast alternatives to granulometric curves, also referred to as pattern ...Read more
Author:Sevenster, PG; Geldenhuis, CJDate:1964The purpose of this investigation was to assess the suitability of a simple strength test in the study of the effects if climatic conditions on the breaking characteristics of South African coals.Read more
Author:Casini, G; Gerber, A; Meyer, TDate:Oct 2012Conceptual modeling is nowadays mostly done using languages such as Entity-Relationship (ER) Models, Unified Modeling Language (UML), and Object-Role Modeling (ORM). These models are used to depict the ontological organization of relevant ...Read more
Author:Meyering, MC; Fourie, PJ; Sevenster, PGDate:1969The initial event in a coal dust explosion is the creation of a localized air blast, which is generally caused by a methane explosion.Read more