Browsing Conference Papers by Title
Now showing items 776-795 of 799
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Validating smartphone-collected speech corpora
(SLTU, 2012)We investigate the effectiveness with which the accuracy of a prompted speech corpus can be validated when minimal additional speech resources are available, and specifically when a language model in the target language ... -
The validation of single point measurements for the localization of multiple harmonic sources
(IEEE, 2010)Power quality management requires inexpensive and simple methods for electric power quality monitoring. This paper investigates the validity of single point measurements for the localization of sources of waveform distortion ... -
Validierung eines Gleitfanglagermodells durch Abwurfversuche
(LCM GmbH, 2012)Der Betrieb magnetgelagerter Maschinen er-fordert grundsätzlich den Einsatz von Fangla-gern. Diese nehmen den Rotor bei Maschinen-stillstand, bei abgeschalteter Magnetlagerung oder bei Magnetlagerversagen auf. Es wird ... -
Valorisation of waste lignin for phenol derivative compounds using hydrothermal liquefaction
(EUBCE, 2019)Approximately 95% of global phenolic compounds (such as catechol, guaiacol, syringol, and vanillin) used in the pharmaceutical, fragrance and industrial industries are produced from petroleum-based phenolics such as benzene. ... -
Valuing the impact of pollution on the poor: the case of Bophelong
(The Global Business and Technology Association, 2013)This paper reports on a comparative study of poverty and the social cost of pollution among poor households in Bophelong. The level of poverty was measured and compared with the cost of pollution as revealed by citizens ... -
Variance-based sensitivity of localized sulphation to microporous separator properties using a distributed parameter model of a valve-regulated lead-acid battery
(Electrochemical Society, 2016)Progressive sulphation of the negative electrode in a lead-acid battery under high-rate operation remains a serious problem. This study investigates how healthier end-of-discharge conditions, in a valve-regulated lead-acid ... -
Verification of Academic credentials for recruitment: a municipal response to the breaches of integrity
(SAAPAM, 2014)The paper evaluates the local government processes developed for ensuring the authenticity of educational credentials in the Sedibeng District Municipality. Verification of academic credentials forms part of the internal ... -
Verifying the cooling capacity and power consumption of thermoelectric cooling holders for vaccine storage
(IEEE, 2015)The purpose of this paper is to verify the power consumption of different topologies of cooling system for the storage of vaccine in a portable solar powered vaccine carrier box for the domestic use in South Africa. The ... -
Very-high energy emission from pulsars
(SAIP, 2015)The vast majority of pulsars detected by the Fermi Large Area Telescope (LAT) display exponentially cutoff spectra with cutoffs falling in a narrow band around a few GeV. Early spectral modelling predicted spectral cutoffs ... -
VHE observations of the gamma-ray binary system LS 5039 with H.E.S.S.
(Sissa Medialab, 2015)LS 5039 is a gamma-ray binary system observed in a broad energy range, from radio to TeV energies. The binary system exhibits both flux and spectral modulation as a function of its orbital period. The X-ray and ... -
A vision of energy-based visualisation of large scale industrial systems for the purposes of condition monitoring
(NWU, 2018)Most large scale industrial systems can be viewed as processes that convert energy from one form to another. Energy is a universal quality of which the distribution holds meaning across physical domains i.e. thermal-flu ... -
A voice service for user feedback on school meals
(ACM, 2012)Research using voice-based services as a technology platform for providing information access and services within developing world regions has shown much promise. The results for design and deployment of such voice-based ... -
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 ... -
Waste butter and margarine as feedstock for biodiesel production
(ETA-Florence Renewable Energies, 2012)The resulting bio-waste from butter and margarine factories should be disposed of in an environmentally friendly manner. Currently the bio-waste is either flushed into the municipal sewerage system or moved to landfill ... -
What can we learn from phase alignment of γ-ray and radio pulsar light curves?
(SAIP, 2011)The Fermi Large Area Telescope (LAT) has revolutionized high-energy (HE) astronomy, and is making enormous contributions particularly to γ-ray pulsar science. As a result of the many new pulsar discoveries, the γ-ray pulsar ... -
WhatsApp with BlackBerry; can messengers be MXit? A philosophical approach to evaluate social networking sites
(Cape Peninsula University of Technology, 2012)In an Information Technology course, learners are confronted with learning about technology; programming, other technical subjects and some mathematics and statistics. Although learners can struggle with the logical thinking ... -
Where is the power of the IEEE 1459-2010?
(IEEE, 2014)The integration of the IEEE 1459-2010 power definitions with the IEC 61000-4-30 PQ standard is investigated. A Class A PQ instrument, which record network coherent data with an absolute time uncertainty of less than 100 ... -
Where to do business in South Africa
(IBC, 2022)Doing business in South Africa is challenging in many ways and recently the deterioration of infrastructure and services provision at the local level have come to influence business location decisions. This paper ... -
White space and digital dividends: the case for dynamic spectrum access in South Africa
(IEEE, 2011)In this paper we present the current state of affairs surrounding the analog switch-off and corresponding digital dividend as pertaining to South Africa. Analog switch-off and digital dividends has enjoyed much attention ...
