摘要翻译：
本文描述了一种微流控芯片的设计和制造，允许驱动气液界面和邻近流体。控制界面运动的第一种方法是在界面上施加压差。在这种情况下，比较了三种不同的微观几何结构在锚固界面上的效率。同时，测量了移动界面所需的临界压力，并与理论结果进行了比较。第二种控制界面运动的方法是超声激励。当激励较弱时，界面呈现行波，行波遵循色散方程。在较强的超声水平下，界面上出现驻波，其频率为激励频率的半整数倍。在界面附近观察到了一个相关的微流流场。弯月面和相关的流动流具有输送颗粒和混合试剂的潜力。
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英文标题：
《Control and ultrasonic actuation of a gas-liquid interface in a
  microfluidic chip》
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作者：
Jie Xu and Daniel Attinger
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最新提交年份：
2009
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分类信息：

一级分类：Physics        物理学
二级分类：Soft Condensed Matter        软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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一级分类：Quantitative Biology        数量生物学
二级分类：Other Quantitative Biology        其他定量生物学
分类描述：Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要：
  This article describes the design and manufacturing of a microfluidic chip, allowing for the actuation of a gas-liquid interface and of the neighboring fluid. A first way to control the interface motion is to apply a pressure difference across it. In this case, the efficiency of three different micro-geometries at anchoring the interface is compared. Also, the critical pressures needed to move the interface are measured and compared to theoretical result. A second way to control the interface motion is by ultrasonic excitation. When the excitation is weak, the interface exhibits traveling waves, which follow a dispersion equation. At stronger ultrasonic levels, standing waves appear on the interface, with frequencies that are half integer multiple of the excitation frequency. An associated microstreaming flow field observed in the vicinity of the interface is characterized. The meniscus and associated streaming flow have the potential to transport particles and mix reagents.
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PDF链接：
https://arxiv.org/pdf/0912.2908