In contrast, in a three-phase system, the currents in each conductor reach their peak instantaneous values sequentially, not simultaneously; in each cycle of the power frequency, first one, then the second, then the third current reaches its maximum value.
12.
Rate of ionic flow through the channel, i . e . single-channel current amplitude, is determined by the maximum channel conductance and electrochemical driving force for that ion, which is the difference between the instantaneous value of the membrane potential and the value of the reversal potential.
13.
Counting exceedance of the critical value can be accomplished either by counting peaks of the process that exceed the critical value or by counting upcrossings of the critical value, where an " upcrossing " is an event where the instantaneous value of the process crosses the critical value with positive slope.
14.
Carbon dioxide equivalency thus reflects the time-integrated radiative forcing of a quantity of " emissions " or rate of greenhouse gas emission a " flow " into the atmosphere rather than the instantaneous value of the radiative forcing of the " stock " ( concentration ) of greenhouse gases " in the atmosphere " described by e.
