scholarly journals Spontaneous phase locking of mechanical multimodes in anti-parity-time optomechanics

2020 ◽  
Vol 28 (20) ◽  
pp. 28762
Author(s):  
Bing Chen ◽  
Yanqiang Guo ◽  
Heng Shen
Keyword(s):  
Phase Locking ◽  
Spontaneous Phase

scholarly journals Failure of spontaneous phase locking for side-by-side walkers in visual contact

2016 ◽  
Vol 16 (12) ◽  
pp. 1364
Author(s):  
Amanda Elam ◽  
Catherine Norris ◽  
Greer Prettyman ◽  
Ray Lefco ◽  
Frank Durgin
Keyword(s):  
Phase Locking ◽  
Visual Contact ◽  
Spontaneous Phase

Variation of slow-wave frequency and locking during the migrating myoelectric complex in dogs

1991 ◽  
Vol 261 (6) ◽  
pp. G1079-G1084
Author(s):  
P. Caenepeel ◽  
W. Janssens ◽  
A. Accarino ◽  
J. Janssens ◽  
G. Vantrappen ◽  
...  
Keyword(s):  
Phase I ◽  
Slow Wave ◽  
Phase Locking ◽  
Slow Waves ◽  
Wave Frequency ◽  
Phase Iii ◽  
Spike Burst ◽  
Bipolar Electrodes ◽  
Migrating Myoelectric Complex ◽  
Spontaneous Phase

Slow waves determine rhythm and polarity of spike bursts. We measured the variation of slow-wave frequency (swf) and locking (swl) in the canine jejunum during the various phases of the migrating myoelectric complex (MMC) and during induced phase III (erythromycin 125 micrograms/kg iv bolus or somatostatin 2.5 micrograms.kg-1.h-1 iv infusion), blocked phase III (atropine 20 micrograms/kg iv bolus), and so-called stationary phase III activity (cisapride 150 micrograms/kg iv bolus). The EMG of 4 dogs, implanted with 10 bipolar electrodes, was recorded on a polygraph. Our results indicate that swf and swl change during the MMC from a stepwise swf gradient with slow waves locked in plateaus during phase I to a continuous swf gradient without or with significantly reduced phase locking during phase III. The length of the first swf plateau decreases significantly from 42 +/- 12 cm post Treitz during phase I to 11 +/- 4 cm during spontaneous phase III. Atropine block of phase III activity prevents phase unlocking and development of a continuous swf gradient. Our hypothesis is that phase unlocking may be one of the induction mechanisms of spike-burst activity.

Ultrastructural identification of three types of sensory setae on copepod antennae

1995 ◽  
Vol 53 ◽  
pp. 956-957
Author(s):  
T. M. Weatherby ◽  
P.H. Lenz
Keyword(s):  
Phase Locking ◽  
Membrane Surface ◽  
Reaction Times ◽  
High Sensitivity ◽  
Structural Features ◽  
Calanoid Copepods ◽  
Marine Food Webs ◽  
Dendritic Membrane ◽  
Ultrastructural Characterization

Crustaceans, as well as other arthropods, are covered with sensory setae and hairs, including mechanoand chemosensory sensillae with a ciliary origin. Calanoid copepods are small planktonic crustaceans forming a major link in marine food webs. In conjunction with behavioral and physiological studies of the antennae of calanoids, we undertook the ultrastructural characterization of sensory setae on the antennae of Pleuromamma xiphias.Distal mechanoreceptive setae exhibit exceptional behavioral and physiological performance characteristics: high sensitivity (<10 nm displacements), fast reaction times (<1 msec latency) and phase locking to high frequencies (1-2 kHz). Unusual structural features of the mechanoreceptors are likely to be related to their physiological sensitivity. These features include a large number (up to 3000) of microtubules in each sensory cell dendrite, arising from or anchored to electron dense rods associated with the ciliary basal body microtubule doublets. The microtubules are arranged in a regular array, with bridges between and within rows. These bundles of microtubules extend far into each mechanoreceptive seta and terminate in a staggered fashion along the dendritic membrane, contacting a large membrane surface area and providing a large potential site of mechanotransduction.

CONSTRUCTION PRINCIPLES OF TECHNICALLY INVARIANT QUARTZ GENERATORS BASED ON THE DOUBLE-LOOP PULSE PHASE LOCKING SYSTEMS

2019 ◽  
Vol 78 (13) ◽  
pp. 1167-1177
Author(s):  
S. K. Pidchenko ◽  
A. A. Taranchuk ◽  
A. Totsky ◽  
V. B. Sharonov
Keyword(s):  
Phase Locking ◽  
Double Loop ◽  
Pulse Phase
Sign in / Sign up

Export Citation Format

Share Document