scholarly journals Imaging Spectroscopy of Flows in Active Regions

1993 ◽  
Vol 141 ◽  
pp. 542-544
Author(s):  
P. Mein ◽  
N. Mein
Keyword(s):  
Imaging Spectroscopy ◽  
Active Regions ◽  
Dynamical Model ◽  
La Palma ◽  
Simple Dynamical Model

AbstractWe use imaging spectroscopy from the MSDP of the VTT telescope in Tenerife (collaboration Paris-Meudon Observatory and Kiepenheuer Institut) to analyse Doppler velocities of arch filaments in Hα and NαD1. The geometry of the magnetic loops is deduced from perspective effects with a simple dynamical model. Velocities are correlated in both lines.Further results are expected from simultaneous observations with other instruments (SVST of La Palma and Huairou magnetograph).

scholarly journals Chaos and Strange Attractors in Pulsar Intensity Records

1992 ◽  
Vol 128 ◽  
pp. 326-328 ◽  
Author(s):  
Roger W. Romani ◽  
J. M. Rankin ◽  
D. C. Backer
Keyword(s):  
Strange Attractors ◽  
Dynamical Model ◽  
High Quality ◽  
Pulse Intensity ◽  
Flux Variability ◽  
Low Dimensionality ◽  
Intensity Fluctuations ◽  
Simple Dynamical Model ◽  
Significant Structure

AbstractWe have examined high quality Arecibo data of three pulsars for evidence of strange attractors in pulse-to-pulse intensity fluctuations. Significant structure was found for PSR 0823+26, and seems related to pulse drifting and nulling activity. The low dimensionality of the possible attractor suggest that a simple dynamical model can explain this component of the flux variability.

scholarly journals A simple dynamical model of the oxygen uptake in the human pulmonary acinus

2013 ◽  
Vol 27 (S1) ◽  
Author(s):  
Min‐Yeong KANG ◽  
Aurelie FOUCQUIER ◽  
Marcel FILOCHE ◽  
Bernard SAPOVAL
Keyword(s):  
Oxygen Uptake ◽  
Dynamical Model ◽  
Pulmonary Acinus ◽  
Simple Dynamical Model

scholarly journals Active Region Evolution Through Coordinated Observations

1993 ◽  
Vol 141 ◽  
pp. 63-66 ◽  
Author(s):  
N. Mein ◽  
P. Mein ◽  
B. Schmieder ◽  
O. Engvold ◽  
R. Molowny ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Resolution ◽  
Active Region ◽  
White Light ◽  
Imaging Spectroscopy ◽  
Solar Telescope ◽  
La Palma ◽  
Rocket Experiment ◽  
Region Evolution

On May 7, 1991, several ground-based instruments have been coordinated to observe AR 6615 (S10-W26), before and during the flight of the SERTS rocket experiment (Schmieder et al.,1992):– Imaging spectroscopy (MSDP) at the VTT telescope of Tenerife (collaboration Paris-Meudon and KIS Freiburg). Hα and NaD1 are observed simultaneously in 2D fields, with 9 and 11 wavelengths respectively (Mein, 1991).– High resolution “white light” pictures (around 4686Å) at the Swedish Vacuum Solar Telescope (SVST) of La Palma (Scharmer et al., 1985).We present below some data from both instruments. Magnetic field maps are also available from the Huairou magnetograph (China), and from the GCT telescope (KIS/Tenerife).

scholarly journals The age of water and carbon in lake-catchments: A simple dynamical model

2018 ◽  
Vol 3 (3) ◽  
pp. 236-245 ◽  
Author(s):  
Christopher J. Duffy ◽  
Hilary A. Dugan ◽  
Paul C. Hanson
Keyword(s):  
Dynamical Model ◽  
Simple Dynamical Model

A simple dynamical model for gravity drainage of brine from growing sea ice

2013 ◽  
Vol 40 (2) ◽  
pp. 307-311 ◽  
Author(s):  
David W. Rees Jones ◽  
M. Grae Worster
Keyword(s):  
Sea Ice ◽  
Dynamical Model ◽  
Gravity Drainage ◽  
Simple Dynamical Model

Notizen: Comparison Between a Generic Reaction- Diffusion Model and a Synergetic Semiconductor System

1987 ◽  
Vol 42 (6) ◽  
pp. 655-656
Author(s):  
J. Parisi ◽  
J. Peinke ◽  
B. Röhricht ◽  
U. Rau ◽  
M. Klein ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Diffusion Model ◽  
Physical Interpretation ◽  
Reaction Diffusion ◽  
Dynamical Model ◽  
Nonlinear Transport ◽  
Reaction Diffusion Model ◽  
Semiconductor System ◽  
Spatio Temporal ◽  
Simple Dynamical Model

This paper gives a concrete physical interpretation of a simple dynamical model based on the universal Rashevsky- Turing theory of symmetry-breaking morphogenesis in terms of spatio-temporal nonlinear transport phenomena in a synergetic semiconductor system.

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