Figure 3

Force distribution in the asymmetric nanotubes with different angles: (a) 19.2°, (b) 38.9° and (c) 60.0°. The dash lines are the walls of nanochannels.
Force distribution in the asymmetric nanotubes with different angles: (a) 19.2°, (b) 38.9° and (c) 60.0°. The dash lines are the walls of nanochannels.