Nonlinear transport processes and irreversible thermodynamics of a mixture of ionized and neutral gases subject to an electric field

1982 ◽  
Vol 76 (5) ◽  
pp. 2618-2631 ◽  
Author(s):  
Byung Chan Eu
Keyword(s):  
Electric Field ◽  
Irreversible Thermodynamics ◽  
Transport Processes ◽  
Nonlinear Transport

scholarly journals Nonlinear transport processes in tokamak plasmas. I. The collisional regimes

2008 ◽  
Vol 15 (6) ◽  
pp. 062309 ◽  
Author(s):  
Giorgio Sonnino ◽  
Philippe Peeters
Keyword(s):  
Transport Processes ◽  
Tokamak Plasmas ◽  
Nonlinear Transport

INFLUENCE OF NONLINEAR ELECTRON MOBILITY ON RESPONSE TIME IN PHOTOREFRACTIVE SEMICONDUCTOR QUANTUM WELLS

2012 ◽  
Vol 21 (04) ◽  
pp. 1250050 ◽  
Author(s):  
MAREK WICHTOWSKI ◽  
ANDRZEJ ZIOLKOWSKI ◽  
EWA WEINERT-RACZKA ◽  
BLAZEJ JABLONSKI ◽  
WOJCIECH KARWECKI
Keyword(s):  
Electric Field ◽  
Quantum Wells ◽  
Electron Mobility ◽  
Hot Electrons ◽  
Nonlinear Transport ◽  
Field Range ◽  
Fringe Contrast ◽  
Recording Time ◽  
Semiconductor Quantum Wells ◽  
Charge Field

Nonlinear transport of hot electrons in semi-insulating GaAs / AlGaAs quantum wells significantly affects their photorefractive properties. In case of two waves mixing, this influence consists, among others, in an increased shift of photorefractive grating relative to light intensity distribution. The influence of nonlinear transport on grating recording time is less examined experimentally and theoretically. This study compares numerical and analytical solutions describing grating dynamics in approximation of small fringe contrast. The influence of nonlinear electron mobility on space-charge field was examined depending on external electric field intensity and on the grating constant. It was found that in the electric field range below 20 kV/cm, the nonlinear transport of electrons does not shorten the grating generation time.

scholarly journals An Atlantic streamer in stratospheric ozone observations and SD-WACCM simulation data

2016 ◽  
Author(s):  
Klemens Hocke ◽  
Franziska Schranz ◽  
Eliane Maillard Barras ◽  
Lorena Moreira ◽  
Niklaus Kämpfer
Keyword(s):  
Water Vapour ◽  
Central Europe ◽  
Large Scale ◽  
Surf Zone ◽  
Middle Atmosphere ◽  
Stratospheric Ozone ◽  
Polar Vortex ◽  
Transport Processes ◽  
Sudden Increase ◽  
Nonlinear Transport

Abstract. Observation and simulation of individual ozone streamers are important for the description and understanding of nonlinear transport processes in the middle atmosphere. A sudden increase in mid-stratospheric ozone occurred above Central Europe on December 4, 2015. The GROunbased Millimeter-wave Ozone Spectrometer (GROMOS) and the Stratospheric Ozone MOnitoring RAdiometer (SOMORA) in Switzerland measured an ozone enhancement of about 30 % at 34 km altitude from December 1 to December 4. A similar ozone increase is simulated by the Specified Dynamics-Whole Atmosphere Community Climate (SD-WACCM) model. Further, the global ozone fields at 34 km altitude from SD-WACCM and the satellite experiment Aura/MLS show a remarkable agreement for the location and the timing of an ozone streamer (large-scale tongue like structure) extending from the subtropics in Northern America over the Atlantic to Central Europe. This agreement indicates that SD-WACCM can inform us about the wind inside the Atlantic ozone streamer. SD-WACCM shows an eastward wind of about 100 m/s inside the Atlantic streamer in the mid-stratosphere. SD-WACCM shows that the Atlantic streamer flows along the edge region of the polar vortex. The Atlantic streamer turns southward at an erosion region of the polar vortex located above the Caspian Sea. The spatial distribution of stratospheric water vapour indicates a filament outgoing from this erosion region. The Atlantic streamer, the polar vortex erosion region and the water vapour filament belong to the process of planetary wave breaking in the so-called surf zone of the Northern mid-latitude winter stratosphere.

Nonlinear transport processes in gases

1981 ◽  
Vol 74 (5) ◽  
pp. 3006-3015 ◽  
Author(s):  
Byung Chan Eu
Keyword(s):  
Transport Processes ◽  
Nonlinear Transport

Effect of the radial electric field, induced by Alfvén waves, on transport processes in tokamaks

1999 ◽  
Vol 39 (11Y) ◽  
pp. 2119-2125
Author(s):  
V.S Tsypin ◽  
I.C Nascimento ◽  
R.M.O Galvão ◽  
A.G Elfimov ◽  
M Tendler ◽  
...  
Keyword(s):  
Electric Field ◽  
Radial Electric Field ◽  
Alfven Waves ◽  
Transport Processes ◽  
Alfvén Waves
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