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The dependencies of phase velocity and dispersion on volume fraction in cancellous-bone-mimicking phantoms
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10.1121/1.3050310
/content/asa/journal/jasa/125/2/10.1121/1.3050310
http://aip.metastore.ingenta.com/content/asa/journal/jasa/125/2/10.1121/1.3050310

Figures

Image of FIG. 1.
FIG. 1.

A phantom containing nylon filaments.

Image of FIG. 2.
FIG. 2.

Measurements of phase velocity vs frequency for one phantom. A linear fit is also shown. The error bars denote standard errors.

Image of FIG. 3.
FIG. 3.

Average phase velocity at vs VF occupied by nylon filaments. The error bars denote standard deviations.

Image of FIG. 4.
FIG. 4.

vs VF occupied by nylon filaments. The error bars denote standard deviations.

Image of FIG. 5.
FIG. 5.

Change in phase velocity (compared with the zero VF level) vs VF for the present study, which utilized randomly distributed nylon filaments in soft-tissue-mimicking material, and a previous study (Wear, 2005), which utilized phantoms consisting of parallel nylon wires immersed in water. The error bars denote standard deviations.

Image of FIG. 6.
FIG. 6.

Change in (compared with the zero VF level) vs VF for the present study, which utilized randomly distributed nylon filaments in soft-tissue-mimicking material, and a previous study (Wear, 2005), which utilized phantoms consisting of parallel nylon wires immersed in water. The error bars denote standard deviations.

Tables

Generic image for table
TABLE I.

Properties of phantoms.

Generic image for table
TABLE II.

Estimates of the first derivative of phase velocity with respect to frequency, , in human calcaneus from Nicholson et al. (1996, Table 1), Strelitzki and Evans (1996, Table 2), Droin et al. (1998, Table 1), Wear (2000a, Table 1), and Wear (2007, Table 2). is the number of calcaneus samples upon which measurements were based.

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/content/asa/journal/jasa/125/2/10.1121/1.3050310
2009-02-01
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The dependencies of phase velocity and dispersion on volume fraction in cancellous-bone-mimicking phantoms
http://aip.metastore.ingenta.com/content/asa/journal/jasa/125/2/10.1121/1.3050310
10.1121/1.3050310
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