About: Investigations on the stability of the low pressure positive column in oxygen

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The stability of low pressure positive column in oxygen was investigated. The studied H- to T-mode transition showed a marked hysteresis in the E(I) characteristics which is affected by wall processes. At small discharge current the el. field showed a significant modulation, characterized by incoherent fluctuations with a broadband Fourier spectrum. With increasing current the discharge operates in the T-mode, where a mode selection with high modulation degree occurred, resulting in a periodic oscillation of the electric field at a discrete frequency spectrum. The dynamic state in the T-mode is expressed by T-waves moving from the cathode to the anode. The stability was studied using a hydrodynamic model considering electrons, positive and negative ions as well as metastable O2 molecules. In good agreement with the experiments the transition was explained as a linear unstable equilibrium state where the energy dependence of the corresponding rate coefficients is the driving mechanism. The stability of low pressure positive column in oxygen was investigated. The studied H- to T-mode transition showed a marked hysteresis in the E(I) characteristics which is affected by wall processes. At small discharge current the el. field showed a significant modulation, characterized by incoherent fluctuations with a broadband Fourier spectrum. With increasing current the discharge operates in the T-mode, where a mode selection with high modulation degree occurred, resulting in a periodic oscillation of the electric field at a discrete frequency spectrum. The dynamic state in the T-mode is expressed by T-waves moving from the cathode to the anode. The stability was studied using a hydrodynamic model considering electrons, positive and negative ions as well as metastable O2 molecules. In good agreement with the experiments the transition was explained as a linear unstable equilibrium state where the energy dependence of the corresponding rate coefficients is the driving mechanism. (en)
Title	Investigations on the stability of the low pressure positive column in oxygen Investigations on the stability of the low pressure positive column in oxygen (en)
skos:prefLabel	Investigations on the stability of the low pressure positive column in oxygen Investigations on the stability of the low pressure positive column in oxygen (en)
skos:notation	RIV/00216224:14310/09:00036177!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM0021622411)
http://linked.open...iv/cisloPeriodika	14
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Navrátil, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	320353
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/09:00036177
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	instability; glow discharge; positive column; oxygen; waves (en)
http://linked.open.../riv/klicoveSlovo	instability waves positive column oxygen glow discharge
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[2745CD9391CB]
http://linked.open...i/riv/nazevZdroje	Journal of Physics D: Applied Physics
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	42
http://linked.open...iv/tvurceVysledku	Navrátil, Zdeněk Wagner, Hans-Erich May, B. Pasedag, Dirk Reimer, Rene Testrich, Holger Wilke, Christian
http://linked.open...ain/vavai/riv/wos	000267944000036
http://linked.open...n/vavai/riv/zamer	Study and application of plasma chemical reactions in non-isothermic low temperature plasma and its interaction with solid surface
issn	0022-3727
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	14310
is http://linked.open...avai/riv/vysledek of	Investigations on the stability of the low pressure positive column in oxygen Investigations on the stability of the low pressure positive column in oxygen Investigations on the stability of the low pressure positive column in oxygen Investigations on the stability of the low pressure positive column in oxygen

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