Figure 1.
Schematic of cell walls and joints in a cellular structure, with the orthonormal vectors (e1,e2,e3) for the structure at the mesoscopic scale and (n1,n2,n3) for a cell wall. (Online version in colour.)
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.