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Browsing by UP Author "Schoeman, J.J. (Jakob Johannes)"
Now showing items 1-14 of 14
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Schoeman, J.J. (Jakob Johannes); Du Plessis, Monuko (Elsevier, 2016-10)This work presents a detailed overview ofthe analytic methods for calculating the beam and gaseous thermal conductance components associated with uncooled VOx microbolometers. The conventional method to calculate the ...
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Schoeman, J.J. (Jakob Johannes); Du Plessis, Monuko (South African Institute of Electrical Engineers, 2012-03)This work is aimed at characterising the DC electrical response of a temperature sensitive microbolometer device. The contribution lies with the choice and the structure of the device, a novel bolometer infrared sensing ...
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Desalination/concentration of reverse osmosis and electrodialysis brines with membrane distillation Osman, M.S.; Schoeman, J.J. (Jakob Johannes); Baratta, L.M. (European Desalination Society, 2010-12)Brines produced by desalination processes such as reverse osmosis (RO), electrodialysis reversal (EDR) and ion-exchange (IX) holds pollution potential for the water environment if not properly handled. These brines contain ...
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Du Plessis, Monuko; Schoeman, J.J. (Jakob Johannes); Maclean, W.; Schutte, C. (South African Institute of Electrical Engineers, 2011-06)The use of uncooled infrared sensors in thermal imaging is a fast growing market in the fields of security and health. The integration of uncooled or room temperature infrared sensors onto a silicon CMOS chip will ...
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Schoeman, J.J. (Jakob Johannes); Novhe, O. (Water Research Council, 2007-04)Please refer to abstract in article
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Swarts, R.J. (Raymond Joseph); Schoeman, J.J. (Jakob Johannes) (IWA Publishing, 2012)The main aim of this study was to determine a treatment strategy for the Berg River water at the Voëlvlei water treatment plant (WTP). Jar tests were conducted using ferric and aluminium sulphate as coagulants to determine ...
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Rava, Eleonora Maria Elizabeth; Schoeman, J.J. (Jakob Johannes); Allison, P.J.; Dilsook, V. (Water Research Council, 2008-04)Please refer to abstract in article
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Rava, Eleonora Maria Elizabeth; Schoeman, J.J. (Jakob Johannes); Allison, P.J.; Dilsook, V. (Water Research Council, 2008-04)Communities surrounding an integrated Kraft mill noticed odours from the mill’s effluent treatment plant. A project was therefore commissioned by the mill to proactively manage the odours from both the pulp-processing ...
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Schoeman, J.J. (Jakob Johannes) (Water Research Council, 2009-10)The nitrate-nitrogen concentration in water supplied to clinics in Limpopo Province is too high to be fit for human consumption (35 to 75 mg/ℓ NO3-N). Therefore, small-scale technologies (reverse osmosis, ion-exchange and ...
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Maclean, W.; Du Plessis, M.; Schoeman, J.J. (Jakob Johannes) (South African Institute of Electrical Engineers, 2012-03)Uncooled IR (infrared) microbolometer performance is greatly affected by the thermal properties associated with the structural layout of each design. Equations are derived in this article which make use of basic structural ...
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Schoeman, J.J. (Jakob Johannes) (Water Research Council, 2009-01)The fluoride concentration of a borehole water supply in a rural area (Madibeng Local Municipality, North West Province, South Africa) varies between 5 and 6 mg/ℓ. This water is therefore not suitable for potable purposes ...
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Schoeman, J.J. (Jakob Johannes); Strachan, L.J. (Water Research Council, 2009-04)Municipal solid waste leachate (MSWL) has the potential to pollute the water environment and to affect biological treatment processes adversely if not properly handled. Reverse osmosis (RO) has the ability to remove both ...
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Schoeman, J.J. (Jakob Johannes); Du Plessis, Monuko (Copernicus Publications, 2019-10-09)Advances in micromachining have led to the development of microelectromechanical systems (MEMS) devices with suspended structures used in a variety of sensors. Of note for this work are sensor types where two elements ...
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Schoeman, J.J. (Jakob Johannes); IASTED African Conference Power and Energy Systems (AfricaPES)(3rd : 2010 : Gaborone, Botswana) (2010)Many borehole waters in rural areas in South Africa are unfit for human consumption because the fluoride (>1,5 mg/ℓ), nitrate-nitrogen (>6 mg/ℓ) and salinity (>1 500 mg/ℓ) concentrations are too high. Ion exchange (IX) and ...
Now showing items 1-14 of 14