Modifies a noun

• bifurcation: The first bifurcation of the vertically upward position is a " reverse " subcritical pitchfork bifurcation denoted by PF2.

• experiment: The sixth subcritical experiment, Clarinet, took place on 9 February, 1999.

• test: On August 29, the United States conducted its eighteenth subcritical nuclear test at the Nevada Test Site.

• testing: The US government insists that subcritical testing is consistent with the zero yield CTBT.

• behavior: Subcritical behavior gives rise to small basins of attraction and thus limits the control performance.

• steam: Again, the main technology used is pulverized coal combustion with subcritical steam.