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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la2049597
|2 doi
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|a pubmed24n0716.xml
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|a eng
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|a Nonomura, Yoshimune
|e verfasserin
|4 aut
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|a Anomalous spreading with Marangoni flow on agar gel surfaces
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|c 2012
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a Date Completed 13.06.2012
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|a Date Revised 28.02.2012
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2012 American Chemical Society
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|a We have experimentally observed anomalous spreading of aqueous alcohol solutions on flat and rough fractal agar gel surfaces. On flat agar gel surfaces, extremely fast spreading [θ(D)(t) ∝ t(-0.92)] that differs from Tanner's law [θ(D)(t) ∝ t(-0.3)] was observed when the liquid contained over 9 wt % of 1-propanol in which strong Marangoni flow was observed as a fluctuation on the liquid surface. However, on fractal gel surfaces, different spreading dynamics [θ(D)(t) ∝ t(-0.58)] were observed, although Marangoni flow still occurred. We found the surface-dependent spreading can be discussed in terms of competition between Marangoni flow and the pinning effect due to surface roughness
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|a Journal Article
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|a Chida, Shigeki
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|a Seino, Eri
|e verfasserin
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|a Mayama, Hiroyuki
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 28(2012), 8 vom: 28. Feb., Seite 3799-806
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