The non-linear model of sound wave diffusion in Chrysanthemum callus

Abstract

There are non-linear effects during sound wave diffusing in biological tissues. It is necessary to further research the process of sound wave diffusion. In this article, we have primarily established the non-linear model of sound diffusion in Chrysanthemum callus, which can theoretically predict the attenuation tendency of sound wave in biological tissues, and the intensity received by tissues, the model provides us a primary model to further explore the mechanism of sound wave. Generally, due to the non-linear effects in tissue for sound wave diffusion, the efficient factor η and the effective diffusion distance are reduced, the effective attenuation coefficient α eff is increased. On the other hand, the conversion relation of sound intensity and sound pressure is primarily explored in this paper. We can gain the magnitude of pressure in tissue, which provides the basis of stress–growth relation studies for tissues and cells.