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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la8007359
|2 doi
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|a eng
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| 100 |
1 |
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|a Oh, Jung Min
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Shape Oscillation of a drop in ac electrowetting
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| 264 |
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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| 500 |
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|a Date Completed 08.09.2008
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|a Date Revised 31.07.2008
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a A sessile drop oscillates when an ac voltage is applied in electrowetting. The oscillation results from the time-varying electrical force concentrated on the three-phase contact line. Little is known about the feature of drop oscillation in electrowetting. In the present work, the drop oscillations are observed systematically, and a theoretical model is developed to analyze the oscillation. It is revealed that resonance occurs at certain frequencies and the oscillation pattern is significantly dependent on the applied ac frequencies. The domain perturbation method is used to derive the shape-mode equations under the assumptions of a weak viscous effect and small drop deformation. The electrical force concentrated on the three-phase contact line is approximated as a delta function, which is decomposed and substituted into each shape-mode equation as a forcing term. The theoretical results for the shape and frequency responses are compared with experimental results, which shows qualitative agreement
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|a Journal Article
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| 700 |
1 |
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|a Ko, Sung Hee
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kang, Kwan Hyoung
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 24(2008), 15 vom: 05. Aug., Seite 8379-86
|w (DE-627)NLM098181009
|x 1520-5827
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|g volume:24
|g year:2008
|g number:15
|g day:05
|g month:08
|g pages:8379-86
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