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High frequency poroelastic waves in hydrogels
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10.1121/1.3293000
/content/asa/journal/jasa/127/3/10.1121/1.3293000
http://aip.metastore.ingenta.com/content/asa/journal/jasa/127/3/10.1121/1.3293000

Figures

Image of FIG. 1.
FIG. 1.

Theoretical behavior of acoustic US fast wave absorption in a hydrogel given by Eq. (52) as a function of the water volume fraction for various values of the parameters: and (full line), and (dashed line), and and (dashed-dotted line).

Image of FIG. 2.
FIG. 2.

Theoretical behavior of the acoustic speed of propagation of US fast wave in a hydrogel given by Eq. (24) as a function of the water volume fraction for various values of the parameters: and (full line), and (dashed line), and and (dashed-dotted line).

Image of FIG. 3.
FIG. 3.

Theoretical behavior of the acoustic speed of propagation of US fast wave in a hydrogel given by Eq. (52) as a function of the water volume fraction for various values of the parameters: , , , and (dashed line); , , , and (full line); , , , and (dotted line).

Image of FIG. 4.
FIG. 4.

Experimental acoustic US speed of propagation of fast wave in PVA hydrogels, with best fit (full line), as a function of the water volume fraction for a hydrogel sample obtained by means of 2 cycles of cross-linking.

Image of Untitled

Image of FIG. 6.
FIG. 6.

Estimated bounded water fraction in PVA hydrogel as a function of the number of cross-linking cycles.

Image of FIG. 7.
FIG. 7.

Experimental acoustic US fast wave attenuation in PVA hydrogels as a function of the water volume fraction at various degrees of polymer matrix cross-linking: 4 cycles (▲) and 6 cycles of cross-linking with best fit (dashed-dotted line and dotted line, respectively).

Tables

Generic image for table
TABLE I.

Most probable values of the model parameters , , , , and obtained from the best fit of the experimental data by means of expression (31) as a function of the number of cross-linking cycles (first column).

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/content/asa/journal/jasa/127/3/10.1121/1.3293000
2010-03-23
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High frequency poroelastic waves in hydrogels
http://aip.metastore.ingenta.com/content/asa/journal/jasa/127/3/10.1121/1.3293000
10.1121/1.3293000
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