In this paper, a data-driven acoustic impedance inversion method is raised by combining two methods of reweighted L1 norm regularization and local cross-correlation analysis. The algorithm is ...

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Discover how a scanning acoustic microscope (SAM) can accurately evaluate the hardness of dental caries. Explore the correlation between acoustic impedance and Knoop hardness in carious and healthy ...

This is due to several effects, including phase aberration, variations in the speed of sound in the skull, scattering, the acoustic impedance mismatch, and absorption of the three-layer medium ...

There are a few classic physics problems that it can really help to have a mental map of. One is, of course, wave propagation. From big-wave surfing, through loudspeaker positioning, to quantum mec… ...