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.
Efficiency of replica exchange in the simulation of azelaic acid. (a) The pH condition visited by the replica after each exchange cycle. Three randomly chosen replicas are shown in blue, red, and green. (b) The exchange probability between adjacent pH replicas.
