dip phenomenon

dip phe·nom·e·non

complete disappearance of ventricular excitability followed by progressive recovery within a few microseconds at the end of excitation; the muscle as a whole repolarizes somewhat inhomogeneously, so that this period is one of special sensitivity to exogenous or endogenous stimuli and reentry.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
[18] discussed the negative deviation of measured velocity from the log-law's prediction or the dip phenomenon, in which the maximum longitudinal velocity occurs below the water surface.
Guo and Julien [12] proposed a modified-log-wake law (MLW-Law) which fits velocity profiles with a dip phenomenon. However, this law cannot be used for predictive applications since it requires fitting the near-free-surface velocities to the parabolic law to obtain dip position and maximum velocity.
In particular, the CML-Law is important for an inadequate prediction of the dip phenomenon with b/h > 3, and n = 0.55 seems to be too small to improve predictions.
Although a variety of device technologies are available for power application, it has been demonstrated that HJFET is a leading candidate for W-CDMA handset transmitter applications due to its high PAE and low ACPR characteristics.[5-7] The high PAE is achieved by biasing the HJFET with a very low quiescent drain current [I.sub.q] instead of a higher [I.sub.q] (class A operation); W-CDMA ACPR requirements are satisfied under this operation, attributed to an ACPR dip phenomenon.
Based on the close correlation, a first-channel ACPR dip phenomenon is explained in terms of a similar IM3 characteristic.
It can be seen that the linearity of the HJFET is improved due to the ACPR1 dip phenomenon under the low [I.sub.q] condition at Pout of approximately 28 dBm.
In fact, several complications make the pressure dip phenomenon hard to understand.