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|a (NLM)17165462
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Nagaoka, H
|e verfasserin
|4 aut
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|a Effect of bubble flow velocity on drag-force and shear stress working on submerged hollow fibre membrane
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 21.02.2007
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|a Date Revised 17.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a This study is aimed at elucidating the mechanism by which rising air bubbles induce shear stress on hollow fibre membrane surfaces. Shear stress on hollow fibre membrane surfaces (laterally-set and vertically-set) caused by aeration was measured directly using a two-direction load sensor. In the laterally-set hollow fibre module, time-averaged upward-direction shear stress on the membrane surface was compared to theoretical shear stress values considering the effect of water flow on membrane surface. Measured time-average shear stress values were almost 200 times larger than theoretical values implying strong interactions between bubbles and solid surface. In the vertically-set membrane module, velocity measurement of bubble flow using laser Doppler velocimeter revealed that drag force working on membrane surface was closely related to upward-direction water velocity. Also fluctuation of drag force and shear force on membrane surface was found to be related to velocity fluctuation (turbulence)
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|a Comparative Study
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|a Journal Article
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|a Membranes, Artificial
|2 NLM
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|a Kurosaka, M
|e verfasserin
|4 aut
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|a Shibata, N
|e verfasserin
|4 aut
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|a Kobayashi, M
|e verfasserin
|4 aut
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 54(2006), 10 vom: 20., Seite 185-92
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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|g volume:54
|g year:2006
|g number:10
|g day:20
|g pages:185-92
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|a AR
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|d 54
|j 2006
|e 10
|b 20
|h 185-92
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