Yang Y, Dunn F
Bioacoustics Research Laboratory, University of Illinois, Urbana 61801.
Ultrasonics. 1993;31(1):35-8. doi: 10.1016/0041-624x(93)90030-4.
The acoustic non-linear properties of bound and free water in biological media are treated based on their structural differences. A model describing the different effects of bound and free water in protein-water solutions and in biological media is proposed. The ratio of bound to free water can be estimated from this model from measurements of the acoustic non-linearity parameter B/A, the sound speed, and the density of the specimens.
基于生物介质中结合水和自由水的结构差异，对它们的声学非线性特性进行了研究。提出了一个描述结合水和自由水在蛋白质-水溶液以及生物介质中不同作用的模型。根据该模型，结合水与自由水的比例可通过测量样品的声学非线性参数B/A、声速和密度来估算。
