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Spatio-temporal dynamics of an encapsulated gas bubble in an ultrasound field
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10.1121/1.2215228
/content/asa/journal/jasa/120/2/10.1121/1.2215228
http://aip.metastore.ingenta.com/content/asa/journal/jasa/120/2/10.1121/1.2215228
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic sketch of an encapsulated bubble.

Image of FIG. 2.
FIG. 2.

The ratio of the radiation damping constants as a function of equilibrium bubble radius for two values of the shell thickness .

Image of FIG. 3.
FIG. 3.

The ratio of the undamped resonance frequencies as a function of equilibrium bubble radius for two values of the shell thickness .

Image of FIG. 4.
FIG. 4.

The ratio of the damped resonance frequencies as a function of equilibrium bubble radius for two values of the shell thickness .

Image of FIG. 5.
FIG. 5.

Damped resonance frequency versus equilibrium bubble radius for two values of the shell thickness . The dashed line corresponds to a free bubble of the equivalent size.

Image of FIG. 6.
FIG. 6.

Behavior of the resonance function at for various values of the equilibrium bubble radius .

Image of FIG. 7.
FIG. 7.

Comparison of radiation force experienced by an encapsulated bubble in a weak field with that on a free bubble of the equivalent size at various driving frequencies. (1) , ; (2) , ; and (3) , .

Image of FIG. 8.
FIG. 8.

Translational displacement versus driving frequency for a free and an encapsulated bubble. The driving field is a single 20-cycle acoustic pulse with a pressure amplitude of . The displacement is fixed after the termination of the pulse. The outer radius of the bubbles is .

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/content/asa/journal/jasa/120/2/10.1121/1.2215228
2006-08-01
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spatio-temporal dynamics of an encapsulated gas bubble in an ultrasound field
http://aip.metastore.ingenta.com/content/asa/journal/jasa/120/2/10.1121/1.2215228
10.1121/1.2215228
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