Zobrazeno 1 - 10
of 691
pro vyhledávání: '"J. Šimůnek"'
Autor:
M. Aghabozorgi Nafchi, F. Němec, G. Pi, Z. Němeček, J. Šafránková, K. Grygorov, J. Šimůnek, T.-C. Tsai
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
An intrinsic limitation of empirical models of the magnetopause location is a predefined magnetopause shape and assumed functional dependences on relevant parameters. We overcome this limitation using a machine learning approach (artificial neural ne
Externí odkaz:
https://doaj.org/article/8142144235d64c48b30dfe9e639a7d16
Autor:
Z. Němeček, J. Šafránková, K. Grygorov, A. Mokrý, G. Pi, M. Aghabozorgi Nafchi, F. Němec, N. Xirogiannopoulou, J. Šimůnek
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 24, Pp n/a-n/a (2023)
Abstract Magnetopause position is controlled mainly by the solar wind dynamic pressure and north‐south interplanetary magnetic field component and these quantities are included in different empirical magnetopause models. We have collected about 50,
Externí odkaz:
https://doaj.org/article/59232d58eb33494aaa589ba5060d0021
Publikováno v:
Vadose Zone Journal, Vol 10, Iss 4, Pp 1287-1298 (2011)
Knowledge of the spatial and temporal distribution of pesticide concentrations is essential for pesticide registration. In field experiments performed during the registration procedure, suctions cups are widely used to monitor the evolution of pestic
Externí odkaz:
https://doaj.org/article/30af2bb6c506406fa5aefd91bec1eef5
Publikováno v:
Hydrology and Earth System Sciences, Vol 13, Iss 4, Pp 453-465 (2009)
There are two approaches available for mapping water retention parameters over the study area using a spatial interpolation method. (1) Retention models can be first fitted to retention curves available at sampling locations prior to interpolating mo
Externí odkaz:
https://doaj.org/article/6143c2f34e814977888f6d156755565b
Publikováno v:
Annales Geophysicae, Vol 26, Pp 3375-3387 (2008)
Two-point observations made by the Interball spacecraft pair unveiled a presence of a large vortex-like structure filled by slow and heated plasma in the outer cusp during periods of the positive BZ interplanetary magnetic field (IMF) component. W
Externí odkaz:
https://doaj.org/article/6dab8a94efb14931b4c15b317adb1080
Publikováno v:
Plant, Soil and Environment, Vol 51, Iss 7, Pp 310-315 (2005)
This study presents the transport of chlorotoluron in the soil profile under field conditions. The herbicide Syncuran was applied on a plot (4 m˛) using an application rate of 2.5 kg/ha of active ingredient. Soil samples were taken after 119 days to
Externí odkaz:
https://doaj.org/article/376e47579b9942ceb1763722e5966ad2
Publikováno v:
Annales Geophysicae, Vol 22, Pp 2441-2450 (2004)
Structured dispersion patterns of the ion precipitation in low- and mid-altitude cusp regions have been reported by many authors. These patterns are interpreted either as temporal features in terms of the pulsed reconnection model or as spatial ch
Externí odkaz:
https://doaj.org/article/3674c9ff94db4e16bd312e298865ab07
Publikováno v:
Annales Geophysicae, Vol 23, Pp 3111-3113 (2005)
Data on solar array efficiency measured on board two Czech MAGION micro-satellites between August 1995 and June 2002, during the period of increasing and high solar activity, were used to study the space weather effects on photo-voltaic solar cell
Externí odkaz:
https://doaj.org/article/95a632300f8741c688a71e384fb7635a
Publikováno v:
Journal of Geophysical Research: Space Physics. 128
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