| Project/Area Number |
22540416
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biophysics/Chemical physics
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| Research Institution | Hokkaido University |
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Principal Investigator |
ORIHARA Hiroshi 北海道大学, 大学院・工学研究院, 教授 (30177307)
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| Co-Investigator(Kenkyū-buntansha) |
NAGAYA Tomoyuki 大分大学, 工学部, 教授 (00228058)
NA Yang Ho 北海道大学, 大学院・工学研究院, 助教 (00421991)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 非平衡ゆらぎ / せん断流 / 液晶 / コロイド / 応答関数 / 異常拡散 / レオロジー / 非平衡定常ゆらぎ / 配向ゆらぎ / 非保存力 / 動的光散乱 / 相互相関関数 / ブラウン運動 |
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| Research Abstract |
We have investigated the nonequilibrium steady state fluctuations of sheared colloids and nematic liquid crystals. Anomalous dispersion giving rise to a cubic term with respect to time in the mean-square distance has been experimentally observed in sheared colloids for the first time. The stress response of a liquid crystal to ac electric fields was measured under shear flow. As a result, anomaly characteristic to nonequilibrium steady state was observed, which was clarified to originate from the nonconservative forces caused by the shear flow.
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