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.
Spearman correlation coefficients (r) between the thermal spread (C2 thermal camera) and the macrophotography of damaged area computed in groups of samples (N.) by power setting (watt).
| Area macro photography (mm2) | ||||
|---|---|---|---|---|
| N | Time: 2 s | N | Time: 4 s | |
| Thermal spread (mm2) | ||||
| Power: 30 W | 8 | r = 0.87208 | 7 | r = 0.52254 |
| Power: 60 W | 6 | r = 0.94286 | 8 | r = 0.81084 |
