Author:Bischof-Niemz, TDate:Feb 2015South Africa’s power system is currently under severe constraints, with power generators meant to be the “barely-ever-used” safety net for the system (diesel-fired gas turbines) running at > 15% average annual load factor, and with one ...Read more
Author:Bischof-Niemz, TobiasDate:Feb 2015This study addressed the questions how much fuel costs the first 1 600 MW of wind & PV have saved during the year 2014 (by reducing utilisation of diesel-fired gas turbines & of the expensive part of the coal fleet) & how much of “unserved ...Read more
Author:Calitz, Joanne R; Mushwana, Crescent; Bischof-Niemz, Sebastian TDate:Aug 2015The report provides the presentation of the financial benefits of renewables in South Africa in 2015. South Africa’s power system is currently under severe constraints. At the same time, Department of Energy is procuring new generation capacity ...Read more
Author:Bischof-Niemz, STDate:Oct 2015South Africa’s power system is currently under severe constraints with load shedding that occurred during 82 days in the first half of 2015. The Department of Energy is procuring new generation capacity and has already allocated a total of ...Read more
Author:Nortje, R; Britz, K; Meyer, TDate:Dec 2009Module extraction plays an important role in the reuse of ontologies as well as in the simplification and optimization of some reasoning tasks such as finding justifications for entailments. In this paper the authors focus on the paper of ...Read more
Author:Venter, CPDate:Oct 2015This presentation discusses how laboratory experiments and results regarding technology solutions to secure South African borders are linked to real life security solutions.Read more
Author:Godfrey, Linda KDate:Oct 2015Moving the South African waste sector away from landfilling provides recognised social, environmental and economic opportunities for the country. This paper presents some of the key findings emerging from research undertaken by the CSIR on ...Read more
Author:Herselman, Martha E; Botha, Adèle; Dlamini, Sifiso B; Marais, Mario A; Mahwai, Nare JDate:Apr 2019The purpose of this paper is to provide evidence of how the selected teachers at 24 schools in 7 provinces in South Africa reacted to questions pertaining to the extent of their prior training, attitudes towards technology, perceived ...Read more
Author:De Korte, GJDate:Oct 2012Dense medium cyclones have been used for many years in a number of countries to beneficiate fine coal. The use of cyclones in this application is, however, not widespread and at present, the process is in use only in South Africa and China. ...Read more
Author:Baruni, Kedimotse P; Nair, Kishor K; Ratsoma, Mahlatse SDate:Aug 2018Due to the rising concern of data security and privacy, fingerprint recognition has been used for identity verification. This paper presents a minutiae-based finger code matching algorithm for identity verification. It describes the effect ...Read more
Author:Dorasamy, K; Webb, L; Tapamo, J; Khanyile, NPDate:Jul 2015The use of directional patterns has recently received more attention in fingerprint classification. It provides a global representation of a fingerprint, by dividing it into homogeneous orientation partitions. With this technique, the challenge ...Read more
Author:Baruni, Kedimotse P; Helberg, A; Nair, Kishor KDate:Dec 2016Fingerprint Match-on-Card (MoC) offers the highest degree of privacy and security to cardholders as the fingerprint never leaves the secure environment of a smart card. The level of security of a biometric system is evaluated by the location ...Read more
Author:Darlow, Luke Nicholas; Rosman, Benjamin SDate:Oct 2017The high variability of fingerprint data (owing to, e.g., differences in quality, moisture conditions, and scanners) makes the task of minutiae extraction challenging, particularly when approached from a stance that relies on tunable algorithmic ...Read more
Author:Msiza, IS; Leke-Betechuoh, B; Nelwamondo, Fulufhelo V; Msimang, NDate:Oct 2009The problem of Automatic Fingerprint Pattern Classification (AFPC) has been studied by many fingerprint biometric practitioners. It is an important concept because, in instances where a relatively large database is being queried for the ...Read more
Author:Mngenge, NA; Nelufule, Nthatheni; Nelwamondo, Fulufhelo V; Msimang, MDate:Nov 2012Automatic Fingerprint Recognition Systems (AFRSs) rely on minutiae position and orientation within the fingerprint image for matching. Minutiae information is highly accurate provided that the fingerprint image matched is of high quality. ...Read more
Author:Molale, P; Twala, B; Seeletse, SDate:Nov 2011In this study, the application of classifiers to problems in fingerprint prediction is investigated. Six supervised learning and two statistical fingerprint classification methods (classifiers) are considered: linear discriminant analysis ...Read more
Author:Msiza, IS; Leke-Betechuoh, B; Malumedzha, TDate:Feb 2011Fingerprint re-alignment is an important aspect in the subject of fingerprint biometrics because a fingerprint that has been rotated, voluntarily or involuntarily, can have negative impact on the functionality of an automated fingerprint ...Read more
Author:Botha, N; Kok, S; Inglis, HMDate:Dec 2012Corneal biomechanical properties are an important element in the study of corneal biomechanics. There are currently two techniques to obtain these properties; an inflation test and the strip extensiometry test. As the inflation test has been ...Read more
Author:Mc Dougall, IDate:2007Finite element models were generated of two submerged arc furnaces of different geometries. A 48MW circular furnace and a 68MW 6-in-line rectangular furnace were studied. The electrodes, raw material, slag and molten metal were included in ...Read more
Author:Kok, S; van Rensburg, JGJDate:01 Sep 2010In anthropology, the finite element method (FEM) is frequently applied to determine the validity of hypotheses concerning the adaptation of biological form to suit functionality. Different geometries are analysed, and based on the predicted ...Read more