Browsing Conference Papers by Title
Now showing items 739-758 of 799
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The time dependent solvent extraction of Ta and Nb
(Trans Tech Publications, 2014)The suitability of Liquid-liquid extraction (LLE) for the selective extraction of chemically similar tantalum (Ta) and niobium (Nb) mixtures was investigated by determining the influence of the acid concentration, extractant ... -
Time of flight secondary ion mass spectrometry and high-resolution transmission electron microscopy/energy dispersive spectroscopy: a study of the distribution of hazardous elements in coal ashes
(International Pittsburgh Coal Conference, 2017) -
Time-dependent, multi-wavelength shock acceleration models for active flares of 3C 279
(Sissa Medialab, 2019)Jets in blazars are an excellent forum for studying acceleration at relativistic shocks using the highly-variable emission seen across the electromagnetic spectrum. Our recent work on combining multi-wavelength leptonic ... -
To scratch or not to scratch – a reflection
(Academic Conferences and Publishing International Limited, 2013)This paper investigates the extent to which the Scratch programming language has been accepted as an electronic teaching tool among teachers in South Africa. Information Technology (IT) was identified as a scarce skill in ... -
Tone realisation in a Yorùbá speech recognition corpus
(SLTU, 2012)We investigate the acoustic realisation of tone in short continuous utterances in Yorùbá. Fundamental frequency (F0) contours are extracted for automatically aligned syllables from a speech corpus of 33 speakers collected ... -
Topical delivery of selected growth factors
(Wiley, 2010)Growth factors can benefit from controlled release admin- istration technologies (i.e. topical or transdermal delivery). When compared with other epithelial membranes, the skin has less enzymatic activity and so provides ... -
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 ... -
Towards an unsupervised morphological segmenter for isiXhosa
(IEEE, 2019)In this paper, branching entropy techniques and isiXhosa language heuristics are adapted to develop unsupervised morphological segmenters for isiXhosa. An overview of isiXhosa segmentation issues is given, followed by ... -
Towards designing an artefact evaluation strategy for human factors engineering: a lean implementation model case study
(Univ Stellenbosch, 2019)Applying scientific methods to the evaluation of design science research artefacts is necessary to recognise the design process as design science research. Prior work has reported on this crucial evaluation component; ... -
Towards industry 4.0: a roadmap for the South African heavy industry sector
(Stellenbosch Univ, 2019)The rapid growth and expansion of the Internet, as well as technical advances in the area of sensor technology, allow for the interconnection of physical objects for the purpose of achieving collective goals, which paves ... -
Towards lecture transcription in resource-scarce environments
(Pattern recognition association of South Africa (PRASA), 2012)We present progress towards automated Lecture Transcription (LT) in resource scarce environments. Our development has focused on the transcription of lectures in Afrikaans from two faculties at North-West University. A ... -
Towards PQ regulation in Southern Africa
(IEEE, 2009)This paper discuss the regulation of Power Quality (PQ) in Southern Africa from a user perspective -
TRADITIONAL APPROACHES AND LEADERSHIP PERSPECTIVES ON SUSTAINABLE ENVIRONMENTAL CONSERVATION PRACTICES IN AFRICA
(IBC, 2021)Environmental sustainability has become a priority agenda globally, with World bodies such as the UN, UNESCO and World Bank encouraging environmental restoration with various incentives for all nations (UNCTAD, 2019; ... -
Transmission line monitoring system for a power line inspection robot
(2013)Eskom has thousands-of-kilometres of transmission lines running across South Africa. The current methods of overhead power line inspection (foot patrols and air inspections) have been implemented for a long time now and ... -
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 ... -
Ultrasonic assisted amaranth stem pretreatment for bio-ethanol production
(ETA-Florence Renewable Energies, 2015)An investigation was undertaken to determine the effect of ultrasound on enzymatic hydrolysis rate and enhanced bioethanol yields. Compositional analysis of the feedstock reveals that amaranth lignocellulose contains 36.35% ... -
Ultrasonic assisted biodiesel production
(ETA-Florence Renewable Energies, 2014)One of the biggest hurdles in the production of biodiesel is the high production cost compared to petroleum-derived diesel. Even though the mechanical agitation utilised during biodiesel production is effective, it is ... -
Understanding work integrated learning in ICT: a systems perspective
(WASET, 2013)Information and communication technology (ICT) is essential to the operation of business, and create many employment opportunities. High volumes of students graduate in ICT however students struggle to find job placement. ...