Author:Msiza, IS; Mistry, J; Leke-Betechuoh, B; Nelwamondo, Fulufhelo V; Marwala, TDate:Jul 2011The concept of fingerprint classification is an important one because of the need to, before executing a database search procedure, virtually break the fingerprint template database into smaller, manageable partitions. This is done in order ...Read more
Author:Booth, R; Meyer, T; Varzinczak, I; Wassermann, RDate:Sep 2011Standard belief change assumes an underlying logic containing full classical propositional logic. However, there are good reasons for considering belief change in less expressive logics as well. In this paper the authors build on recent ...Read more
Author:Rens, G; Meyer, T; Lakemeyer, GDate:May 2013We investigate the requirements for specifying the behaviors of actions in a stochastic domain. That is, we propose how to write sentences in a logical language to capture a model of probabilistic transitions due to the execution of actions ...Read more
Author:Greben, JMDate:Nov 1991This paper originated from the author's dissatisfaction with the way the discrete Fourier transform is usually presented in the literature. Although mathematically correct, the physical meaning of the common representation is unsatisfactory, ...Read more
Author:Osborne, C; Cornish, L; Luyckx, SDate:1997The aim of this work was to produce V8C7-WC and V4C3-WC powders with grain size between 1 and 2mu-m, as a first stage of the preparation of fine grained WC-VC-Co hardmetal. V8C7-WC powder was produced via two routes: starting from preformed ...Read more
Author:Grobler, M; Swart, IDate:Jul 2014Cyber warfare is a contentious topic, with no agreement on whether this is a real possibility or an unrealistic extension of the physical battlefield. This article will not debate the validity and legality of the concept of cyber warfare, but ...Read more
Author:Shatalov, M; Manzhirov, A; Fedotov, IDate:Sep 2012The theory of accreting structures is a new and fast developing branch of analytical mechanics basing on the theory of partial differential and integral equations. In the present paper the authors analyze qualitative properties of accreting ...Read more
Author:Varzinczak, JJDate:Jul 2009Domain descriptions in reasoning about actions are logical theories and as such they may also evolve. Given that, knowledge engineers also need revision tools to incorporate new incoming laws about the dynamic environment. Here the authors ...Read more
Author:Greben, JMDate:2009It has become common to describe complexity science as a new approach to many scientific questions that are less amenable to the usual “mechanistic view” of reality in science. However, we believe that the contrast implied here is to a large ...Read more
Author:Cilliers, Jacques E; Smit, JCDate:Sep 2009In previous paper the authors introduced a technique for generating mismatched pulse compression filters for linear frequency chirp signals. The technique minimizes the sum of the pulse compression sidelobes in an Lp norm sense. It was shown ...Read more
Author:Bencherif, H; Begue, NM; Diab, CR; Sivakumar, V; Keckhut, PDate:Sep 2010The present reports on the use of a multi-regression model adapted at Reunion University for temperature and ozone trend estimates. Depending on the location of the observing site, the studied geophysical signal is broken down in form of a ...Read more
Author:Engelbrecht, GN; Vos, APDate:Jul 2009This article delineates generic causes to internal conflict and proposes a coalition-forming methodology to allow for power sharing as one avenue of conflict resolution. A suitable framework to study causes to internal conflict should, at ...Read more
Author:Meijer, M-C; Dala, LDate:Jun 2015The basis of linear piston theory in unsteady potential flow is used in this work to develop a quantitative treatment of the validity range of piston theory. In the limit of steady flow, velocity perturbations from Donov’s series expansion ...Read more
Author:Dufois, F; Penven, P; Whittle, CP; Veitch, JDate:2012Using in situ sea surface temperature (SST) data and MODIS/TERRA SST, the monthly AVHRR Pathfinder (version 5.0 and 5.2) SST product was evaluated within the four main Eastern Boundary Upwelling Systems. A warm bias in the monthly Pathfinder ...Read more
Author:Rosman, Benjamin S; Ramamoorthy, S; Mahmud, MMH; Kohli, PDate:Feb 2014Different interfaces allow a user to achieve the same end goal through different action sequences, e.g., command lines vs. drop down menus. Interface efficiency can be described in terms of a cost incurred, e.g., time taken, by the user in ...Read more
Author:Sahraeian, R; Van Compernolle, D; De Wet, FebeDate:May 2014This paper demonstrates the application of Intrinsic Spectral Analysis (ISA) for low-resource Automatic Speech Recognition (ASR). State-of-the-art speech recognition systems that require large amounts of task specific training data fail to ...Read more
Author:Khomenko, MD; Mirzade, FKH; Pityana, Sisa LDate:Nov 2018The developed hydrodynamic model of laser cladding (LC) considering catchment efficiency is verified with experimental data for steel powder LC in a wide range of process parameters. The comparison of the main calculated output parameters ...Read more
Author:Snedden, Glen C; Dunn, Dwain I; Ingram, GDate:Apr 2018Non-axisymmetric endwalls in turbine stages have shown to be a robust method to improve the performance of turbines in both power generation and aero-derivative applications. Non-axisymmetric endwalls target the control of secondary flows and ...Read more