Figure 5.
Effect of the sample thickness on the frequency dependencies of the sound absorption coefficient for the investigated ABS samples with a (a) Cartesian and (b) Octagonal structures.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.