Similarities between the initial phase of a transient nonuniform glow discharge in nitrogen and the negative corona Trichel pulse formation in an electronegative gas

1988 ◽  
Vol 52 (3) ◽  
pp. 185-187 ◽  
Author(s):  
Mirko Černák ◽  
Tatsuzo Hosokawa
Keyword(s):  
Glow Discharge ◽  
Initial Phase ◽  
Negative Corona ◽  
Pulse Formation

Evolution of the radial structure of a negative corona during its transformation into a glow discharge and a spark

2003 ◽  
Vol 29 (2) ◽  
pp. 176-186 ◽  
Author(s):  
Yu. S. Akishev ◽  
M. E. Grushin ◽  
V. B. Karal'nik ◽  
I. V. Kochetov ◽  
A. E. Monich ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Negative Corona ◽  
Radial Structure

scholarly journals Negative Corona Current Pulses and Cathode Sheath Instabilities in a Short Point-Plane Gap in CO2

1992 ◽  
Vol 45 (2) ◽  
pp. 193 ◽  
Author(s):  
M Cernák ◽  
T Hosokawa
Keyword(s):  
Complex Form ◽  
Leading Edge ◽  
Negative Corona ◽  
Cathode Sheath ◽  
Current Pulses ◽  
Corona Current ◽  
Pulse Peak ◽  
Pulse Formation ◽  
A Current ◽  
Gas Pressures

Waveforms ofthe first negative corona current pulses have been measured in C02 and C02+SF6 mixtures as a function of applied voltage and gas pressure in the range 6�67-66�7 kPa. A complex form of the pulses with a step on the pulse leading edge and a current hump on the pulse trailing part has been found at gas pressures below 40 kPa. Changing the cathode surface material from copper to copper iodide, which has an exceptionally high photoelectric yield, resulted in at least a twofold increase in height of the step on the pulse leading edge, but had little effect on the main current rise to the pulse peak. The use of unconditioned cathodes resulted in the appearance of peculiar current spikes on the pulse tail, which are tentatively attributed to positive-streamer-like instabilities of the cathode sheath. The implications of these results for theories of Trichel pulse formation are discussed, and a physical picture of the phenomenon based on the presumed existence of a cathode-directed streamer associated with the steep pulse rise is outlined.

A numerical simulation of Trichel-pulse formation in a negative corona

1997 ◽  
Vol 30 (19) ◽  
pp. 2726-2736 ◽  
Author(s):  
A P Napartovich ◽  
Yu S Akishev ◽  
A A Deryugin ◽  
I V Kochetov ◽  
M V Pan'kin ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Negative Corona ◽  
Pulse Formation

Transition of a multipin negative corona in atmospheric air to a glow discharge

2000 ◽  
Vol 26 (2) ◽  
pp. 157-163 ◽  
Author(s):  
Yu. S. Akishev ◽  
M. E. Grushin ◽  
I. V. Kochetov ◽  
A. P. Napartovich ◽  
M. V. Pan'kin ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Negative Corona ◽  
Atmospheric Air

Some changes during the initial phase of the unit system in a large mental hospital

1966 ◽  
Author(s):  
Robert P. Barrell ◽  
Alan S. DeWolfe ◽  
Fred E. Spaner
Keyword(s):  
Initial Phase ◽  
Mental Hospital ◽  
Unit System

Treatment of polyethylene terephthalate in a He glow discharge

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-357-Pr3-362 ◽  
Author(s):  
D. D. Papakonstantinou ◽  
D. Mataras ◽  
Arefi-Khonsari
Keyword(s):  
Glow Discharge ◽  
Polyethylene Terephthalate

A. C. Stark effect on the 4713 Å line emitted by a helium glow discharge in the field of a multimode T.E.A. CO2 laser

1982 ◽  
Vol 43 (6) ◽  
pp. 875-881 ◽  
Author(s):  
B. Dubreuil ◽  
P. Pignolet ◽  
A. Catherinot ◽  
P. Davy
Keyword(s):  
Glow Discharge ◽  
Co2 Laser ◽  
Stark Effect

THE BAND GAP OF GLOW-DISCHARGE-PRODUCED AMORPHOUS SiOx

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-1025-C4-1028 ◽  
Author(s):  
R. Carius ◽  
R. Fischer ◽  
E. Holzenkämpfer
Keyword(s):  
Glow Discharge ◽  
Band Gap

Entrainment and Annihilation of Reentrant Excitation in a Periodically Stimulated Ring of Excitable Media

1997 ◽  
Vol 36 (04/05) ◽  
pp. 290-293
Author(s):  
L. Glass ◽  
T. Nomura
Keyword(s):  
Cardiac Arrhythmias ◽  
Initial Phase ◽  
Human Heart ◽  
Periodic Wave ◽  
Excitable Media ◽  
One Dimensional ◽  
Clinical Observations ◽  
Periodic Stimulation ◽  
Reentrant Excitation ◽  
Stimulation Of

Abstract:Excitable media, such as nerve, heart and the Belousov-Zhabo- tinsky reaction, exhibit a large excursion from equilibrium in response to a small but finite perturbation. Assuming a one-dimensional ring geometry of sufficient length, excitable media support a periodic wave of circulation. As in the periodic stimulation of oscillations in ordinary differential equations, the effects of periodic stimuli of the periodically circulating wave can be described by a one-dimensional Poincaré map. Depending on the period and intensity of the stimulus as well as its initial phase, either entrainment or termination of the original circulating wave is observed. These phenomena are directly related to clinical observations concerning periodic stimulation of a class of cardiac arrhythmias caused by reentrant wave propagation in the human heart.

Sign in / Sign up

Export Citation Format

Share Document