Voorbeelden van supercritical

• Many common chemicals can go supercritical, for instance water, carbon dioxide and ethylene, used to make polythene shopping bags.

• Carbon dioxide, when it goes supercritical at just over 30C, was first used in the 1960s for extracting the caffeine from coffee beans without leaving a chemical residue.

• a new generation of supercritical coal-fired power stations

• They squeezed the gas to almost 100 times atmospheric pressure but heated it to just 35C. Once in the supercritical state, the ketones were added.

• Generally, smaller (order 0.1) input g yielded supercritical outputs, and larger (order 10) g subcritical outputs, which we now describe.

• A locally supercritical flow is formed, which jumps a t some location to a subcritical state.

• Everything after this, including the re-initiation mechanism for the supercritical case, is irrelevant if we are only concerned with the critical energy.

• According to the model equations, in the supercritical range, chaotic oscillations with intermittently growing amplitudes occur, resulting in repeated global flow reversals in the loop.

• Here the fourth order term has the wrong sign whenever p(x, t) is subcritical and the right sign where it is supercritical.

• Such periodic waves are not roll waves, because there is no transition from subcritical to supercritical flow in the wave.

• If the total mass is supercritical, why should subcritical spreading behavior be expected for the initial regime of the dynamics?

• The supercritical, steady two-dimensional motion, the heat transport and the stability of the motion are investigated.

• In both these investigations the heating was supercritical.

• The failure point is identified as the point where the profiles of the marginally subcritical and marginally supercritical initiation energies start to deviate significantly.

• There is no question of applying an 'initial' condition, in the sense that it is used in the case of disturbances under supercritical conditions.

• A similar analysis shows that these flows are also supercritical t o waves of that type.

• Two-dimensional rolls have indeed been shown to be a stable bifurcation solution for weakly supercritical convection.

• The flow is then supercritical and internal hydraulic jumps may occur under suitable downstream conditions.

• When the specifying flow is slightly supercritical, a weakly nonlinear solitary wave (29a) is possibie.