FIG. 12.
The distribution of the Cell Collective models based on the number of source nodes (top) and the ratio of the number of source nodes to the total number of nodes (bottom).
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.