Sentences with phrase «air microbubbles»
The acoustic waves actuate air microbubbles trapped within sidewall microcavities.
https://www.sciencedaily.com/ Not exact matches
(Brennen, 1995) In gas - free water, the pressure due to interfacial curvature rapidly drives micron - sized bubbles into solution, but in air - saturated water (22 mg l - 1 at STP), but in the presence of film - forming impurities, either present naturally or intentionally added, microbubbles may last for tens to hundreds of seconds.