单分子表面膜边缘的小尺度粗糙度分布

M. Gade, P. A. Lange
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引用次数: 0

摘要

当水面被小块的表面活性物质覆盖时,作者对波浪斜率、雷达后向散射和视频图像强度进行了风波槽测量。他们的研究结果表明,在低风速下,浮油斑块由新扩散的浮油引起的不同阻尼行为区域组成。通过分析雷达多普勒频移,他们可以发现沿光滑斑块的束缚波和自由传播波的分布有很大的变化。由于摄像机对观察到的小尺度特征不太敏感,因此支持使用此类设备进行自动光滑检测。
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On the distribution of small-scale roughness at the edges of monomolecular surface films
The authors have carried out wind-wave tank measurements of wave slopes, radar backscattering, and video image intensity, while the water surface was covered with small patches of surface-active material. Their results show that, at low wind speed, the slick patches consist of regions of different damping behavior caused by the freshly spread slick. By analyzing the radar Doppler shifts they could show that the distribution of bound and freely propagating waves along a slick patch strongly varies. Since the video camera is less sensitive to the observed small-scale features they support the use of such devices for automated slick detection.
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