Figure 10.
Wavelet analysis of A-scan from measurements in conditions (a) wV (temp. −2 °C, thin layer of fresh snow on the slab surface); (b) wVI (temp. −2 °C, de-icing salt on the slab surface).
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.