Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Lubomir Ivan"'
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 60, Iss 4, Pp 319-332 (2012)
The paper evaluates the results of a 6-year-monitoring of the eco-hydrological influence of Norway spruce (Picea abies (L.) Karst.) and European beech (Fagus silvatica L.) forest stands on the hydro-physical properties of snow cover. The experiment w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c021614581f9767552c0c8e5f7a9c49
https://doaj.org/article/fe49788da799417a8e2c8a2b41abc158
https://doaj.org/article/fe49788da799417a8e2c8a2b41abc158
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 16, Iss 2, Pp 211-217 (2018)
This paper deals with the change of the ratio of the open circuit impedance to short-circuit impedance of the electric traction depending on the distance of the traction vehicle from the beginning of the section. This ratio is calculated in order to
Externí odkaz:
https://doaj.org/article/53247981a3e04439921fefc014e22ce9
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 15, Iss 2, Pp 280-285 (2017)
A symmetric coupling of methods of finite and boundary elements for numerical solution of transient eddy current problems is described. This is an essential step in modelling of electromagnetic forming of metalic sheets. The finite element method is
Externí odkaz:
https://doaj.org/article/aec1c0995d1a4179a3cce0ebefe5a81e
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 15, Iss 1, Pp 77-83 (2017)
This paper deals with the sensitivity of the input impedance of an open track circuit in the event that the parameters of the track are changed. Weather conditions and the state of pollution are the most common reasons for parameter changes. The resu
Externí odkaz:
https://doaj.org/article/717ac675a7da40d28a2d4ede66926a15
Autor:
Yahia Salem, Lubomir Ivanek
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 14, Iss 2, Pp 139-144 (2016)
In this research various channel propagation models of wireless communication systems were analysed. There are many types of propagation models that can minutely calculate the path loss in all types of terrain. Performance estimation of different pro
Externí odkaz:
https://doaj.org/article/dcffb0be28904c6f9e2bcea76dfaf3bd