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Journal ArticleDOI

Damping Constants of Pulsating Bubbles

Anthony I. Eller
- 01 May 1970 - 
- Vol. 47, pp 1469-1470
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TLDR
In this article, the damping constants of resonant bubbles are extended to the off-resonance case and it is shown that thermal damping is important for bubbles driven below resonance, and radiation damping for those above resonance.
Abstract
Results obtained by Devin [J. Acoust. Soc. Amer. 31, 1654–1667 (1959)] for the damping constants of resonant bubbles are extended to the off‐resonance case. Calculated results show for the range of conditions considered that thermal damping is important for bubbles driven below resonance, and radiation damping is important for those above resonance.

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Using the ultrasonic wave transmission method to study the setting behavior of foamed concrete

TL;DR: In this article, the authors investigated the possibility of using ultrasonic wave transmission method to study the setting behavior of foamed concretes (FC), and relate Ultrasonic wave parameters to foamed concrete setting times.

Derivation of the Rayleigh-Plesset equation in terms of volume

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