Browsing Conference Papers by Title
Now showing items 581-600 of 781
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Preparation of biochar from sunflower husks (Poster)
(ETA-Florence Renewable Energies, 2014) -
Preparation of biochars for co-gasification from sweet sorghum bagasse
(ETA-Florence Renewable Energies, 2015)Biochar is a solid product obtained through torrefaction, liquefaction or pyrolysis of organic material. It can be used for soil amendment, activated carbon for sequestration, or as bio-coal for gasification or co-gasification. ... -
Preparation of polyurethane from lignin and crude glycerol
(ETA-Florence Renewable Energies, 2015)Polyurethane foam (PUF) was prepared by a novel approach, using a renewable polyol derived from only biofuel production by-products, lignin and crude glycerol. This could potentially be a high value bio-refinery application ... -
Pretreatment of coal power plant ro retentate using AR Floc 100
(EARET, 2018)The water purification process at Eskom includes a reverse osmosis (RO) treatment plant. There are several limitations to this process depending on the water characteristics. The most common problems limiting the success ... -
Prevalence of household food poverty in a South African Township
(The Global Business and Technology Association, 2013)This study analyzed the prevalence of household food poverty in a township of Kwakwatsi, South Africa. A household was defined to be in food poverty when its monthly food spending is less than the cost of a basic food ... -
Probing Vela pulsar down to 20 GeV with H.E.S.S. II observations
(AIP, 2017)Observations of the Vela pulsar (PSR B0833-45) with the High Energy Stereoscopic System phase II array (H.E.S.S. II) have resulted in a high-significance detection of its pulsed emission down to 20 GeV. The very low-energy ... -
Production of bio-degradable polyurethane foam from sugarcane bagasse and biodiesel-derived crude glycerine
(ETA-Florence Renewable Energies, 2015)As the threat of the depletion of fossil based fuels becomes more of a reality, there is a need to find alternative carbon sources for the production of a wide range of chemicals, polymers and plastics. One plastic that ... -
Production of ethanol from sweetstem sorghum and tropical sugar beet for a rural community
(ETA-Florence Renewable Energies, 2011)Rural communities in the North West Province of South Africa are among the poorest in the world with an average income of less than ZAR 8.75 (EU 0.875) per day. The South African government has committed itself to upliftment ... -
Production of value-added products from biodiesel derived crude glycerol
(ETA-Florence Renewable Energies, 2015)Crude glycerol, a by-product of biodiesel production which contain impurities such as methanol, triglycerides and catalysts, would represent a huge challenge to the environment if disposed. Thus the best opportunity is to ... -
A proposed method for evaluating the frequency response of 22 kV outdoor current transformers for harmonic measurements in renewable energy plant applications
(IEEE, 2019)With an increase in renewable energy plants connected to the national grid of South Africa the monitoring and assessment of power quality is becoming more important for utilities and independent power producers (IPPs). For ... -
A proposed model for South Africa to effectively recycle and dispose waste electrical and electronic equipment
(SAIIE, 2016)In South Africa there are daily occurrences of dumping of Waste Electrical and Electronic Equipment (WEEE), also called e-waste, at municipal refuse sites. WEEE is hazardous and comes from households and businesses and ... -
Protection relay loop measurement analysis
(IEEE, 2012)High voltage transmission system availability and system security are key performance criteria for electricity utilities worldwide. System disturbances need to be cleared quickly and accurately in order to minimise the ... -
Pseudo-magnetic centre identification of an active magnetic bearing for sensorless drive control start-up
(Elsevier, 2017)A method of identifying runout of an active magnetic bearing at standstill and low speed is presented. The on-line current bias injection method found in literature is improved, but is still found to converge too slowly ... -
Public service (mis)management of the gifts: travesty to fostering integrity and preventing corruption
(SAAPAM, 2014)This paper seeks to analyse South Africa’s regulatory frameworks relating to the receipt of gifts in the Public Service in order to assess the mechanisms for management of this practice in Sedibeng District Municipality ... -
Pull-Process-Push: Can a Tweaked Algorithm Improve Database Performance Significantly?
(Czech institute of academic education z.s, 2014)Design science research has two essential processes, design and evaluation, supported by various approaches. Two of these activities, namely problem identification and evaluation, require qualitative data to be gathered ... -
Pulsar emission in the very-high-energy regime
(Sissa Medialab, 2015)The vast majority of the pulsars detected by the Fermi Large Area Telescope (LAT) display spectra with exponential cutoffs falling in a narrow range around a few GeV. Early spectral modelling predicted spectral cutoff ... -
Pulsations from the Vela pulsar down to 20 GeV with H.E.S.S. II
(Sissa Medialab, 2015)The Vela pulsar (PSR J0835 − 4510) is the brightest persistent source in the high-energy γ-ray sky. It is a relatively near, young and energetic rotation-powered pulsar. Vela was a key target for the High Energy Stereoscopic ... -
The pursuit of African continental governance: the stone that the builders "forgot"
(SAAPAM, 2014)The African Union is an inter-governmental arrangement aimed at fostering democratic ideals and development on the African continent. The metamorphosis of inter-governmental arrangements has led to the need for the inclusion ... -
Pyrolysis product evaluation and prediction from coals of different rank
(International Pittsburgh Coal Conference, 2016)
