FIG. 3.
Optical-microscopic images of the substrates with the space between the rods filled by wax solid with different duration of inclined placement when the wax was still liquid. (a) 30min; (b) 1 hour; (c) 5 days; (d) 20 days.
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.