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.
Reflectance spectra at varied environmental conditions: (a, b) VIS sample and (c, d) NIR sample. (a, c) Time dependencies of the reflectance spectra; time steps II–VI are 3 h (a) and 6 h (c). The sample temperature and relative humidity of the environment at different times are shown in the bars on top of the graph. (b, d) Reflectance spectra at the end of each time step.
