Conference Papers: Recent submissions
Now showing items 1-20 of 499
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Status of astronomy in Namibia
(ICTP, 2018)Astronomy plays a major role in the scientific landscape of Namibia and Southern Africa. Considerable progress has been achieved scientifically as well as in terms of human capacity development in the field. In all ... -
Extracting the February 1956 ground level enhancement event from legacy cosmic ray recordings
(Springer, 2018)Early continuous recordings of cosmic rays, as measured with Carnegie Type C Ionization Chambers, were made on rolls of photographic paper. This paper describes the extraction of the ionization data of the February 1956 ... -
A reflective practice approach for supporting IT skills required by industry through project-based learning
(Springer, 2019)This paper reflects on the concerns that IT graduates lack specific skills required in industry and how project-based learning (PBL) can support these skills. An overview of the instructional design of a course module ... -
Towards an initiative-based industry 4.0 maturity improvement process: master drilling as a case study
(Univ Stellenbosch, 2018)Industry 4.0 is an unavoidable global revolution with disruptive effects. Many sectors in South Africa are currently underprepared for the transformation that is necessary to stay competitive. An ever-present need therefore ... -
Simulating operational improvements on mine compressed air systems
(Univ Stellenbosch, 2018)Compressed air systems are one of the most significant energy users on mines, with a contribution of about 20 per cent to the total electrical energy consumption on a mine. Research has shown that these compressed air ... -
Warm-start heuristics for solving the passive optical network planning problem
(Univ Stellenbosch, 2018)The use of automated network planning systems is crucial for reducing the deployment cost and planning time of passive optical telecommunication networks. Mixed integer linear programming is well suited for the purpose of ... -
Impact of aggregation interval on harmonic phase angle measurements
(IEEE, 2018)The aggregation principles of IEC 61000-4-30 is a well-known concept implemented in Power Quality (PQ) recorders. Only rms data is retained. Harmonic emission assessment requires the analysis of harmonic phasors. Continuous ... -
On the remote calibration of voltage transformers: validation of opportunity
(IEEE, 2018)Remote calibration of instrument transformers seems possible if sufficient certainty in field measurements can be achieved. This opportunity, until now, was only investigated from a theoretical point of view and in this ... -
Measurement uncertainty of current harmonics during the assessment of compliance to grid code requirements
(IEEE, 2018)This paper improves the impact of measurement uncertainty on harmonic grid code compliance assessment by characterization of the current transformers at a renewable power producer. Field data was collected to evaluate the ... -
Solar powered DC refrigerator with a monitoring and control system
(IEEE, 2018)Food, medicine and vaccine in developing countries are often difficult to preserve due to epileptic power supply from the utility companies. In other to reduce the over dependence on the utility company and harness the ... -
Self-reported physical activity is not a valid method for measuring physical activity in 15 year old South African boys and girls
(Human Kinetics, 2018)Valid instruments for the assessment of physical activity remains a challenge in field studies. This study determine the level of agreement between objectively measured physical activity by ActiHeart® and the ... -
Two-year changes in body composition, physical activity, and selected metabolic risk factors among adolescents living in the North West province of South Africa: the PAHL study
(Human Kinetics, 2018)The purpose of this study was to determine the two-year changes in body composition, physical activity (PA) and selected metabolic risk factors (abdominal obesity and blood pressure) among adolescents from the North West ... -
The use of system development methodologies in the development of mobile applications: are they worthy of use?
(IEEE, 2018)The implementation of system development methodologies (SDMs) in mobile applications (mobile apps) development has a positive effect on companies and their respective software projects. SDMs provide a framework for planning, ... -
Computational chemistry study of zirconium monomers in low acid concentration aqueous solutions
(IOP Publishing, 2018)Zirconium and hafnium have to be separated prior to their use in nuclear energy reactors. Therefore, a lot of research has been done on the solvent extraction of zirconium. However, most of this research involved screening ... -
Design considerations of the PM transverse flux linear motor for an urban-type electromagnetic train
(IEEE, 2018)This paper presents six different designs of the permanent magnet transverse-flux linear motor applied to an electromagnetic train. The initial design of the motor was modified to improve its magnetic characteristics. ... -
Modelling energy-dependent pulsar light curves
(Cambridge Univ Press, 2017)In recent years, surprise discoveries of pulsed emission from the Crab and Vela pulsars above 100 GeV have drawn renewed attention to this largely unexplored region of the energy range. In this paper, we discuss example ... -
Hard spectral tails in magnetars
(Cambridge Univ Press, 2017)Pulsed non-thermal quiescent emission between 10 keV and around 150 keV has been observed in ~10 magnetars. For inner magnetospheric models of such hard X-ray signals, resonant Compton upscattering of soft thermal photons ... -
Information security education: towards a cybersecure society
(Springer, 2018)This book constitutes the refereed proceedings of the 11th IFIP WG 11.8 World Conference on Information Security Education, WISE 11, held at the 24th IFIP World Computer Congress, WCC 2018, in Poznan, Poland, in September ... -
Aspects that need to be addressed during the development of location-based games
(Springer, 2018)To determine the suitability of a software development methodology (SDM) to aid in the development of location-based games, it is necessary to determine to what degree SDMs address certain aspects that need to be addressed ... -
The feasibility of raising information security awareness in an academic environment using SNA
(Springer, 2018)The human aspect is one of the key success factors in information security (InfoSec). Its impact on InfoSec is so significant that multiple studies have shown that a balanced approach combining technology and security ...
