Zobrazeno 1 - 10
of 67
pro vyhledávání: '"F. Vodák"'
Publikováno v:
Acta Polytechnica, Vol 44, Iss 1 (2004)
The compressive strengths of unsealed samples of concrete at the age of 180 days and have been measured at temperatures 20 °C, 300 °C, 600 °C and 900 °C. All of tests were performed for cold material. We compared our results with those obtained i
Externí odkaz:
https://doaj.org/article/01cbd4ec669c4a7f8d5b01b3201292e6
Publikováno v:
Acta Polytechnica, Vol 44, Iss 1 (2004)
Aging of concrete due to gamma irradiation. Strength of concrete are in a good correspondency with already known results.
Externí odkaz:
https://doaj.org/article/6081e9aae4d9408bb9231d1227795281
Publikováno v:
Acta Polytechnica, Vol 41, Iss 2 (2001)
The effect of thermal cycling (freezing and thawing) on the texture and strength of two types of concrete is studied: 1. Concrete used for a containment structure at NPP Temelín (Czech Republic) - so-called TEMELÍN concrete.2. Highly resistant PENL
Externí odkaz:
https://doaj.org/article/19fd7cedbb71410085e7849d05aa6bb7
Autor:
P. Semerák, J. Drchalová, Š. Hošková, Robert Černý, J. Toman, Ondrej Michalko, O. Kapičková, F. Vodák
Publikováno v:
Cement and Concrete Research. 27:415-426
The exact knowledge of thermophysical properties of high-performance concrete for nuclear-safety related structures in wide temperature and moisture ranges is for realistic modeling of possible accidents in nuclear power plants of particular importan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50a697d8036bcf67f93341ee8b5f7e84
https://doi.org/10.1016/s0008-8846(97)00033-1
https://doi.org/10.1016/s0008-8846(97)00033-1
Autor:
Robert Černý, F. Vodák
Publikováno v:
Czechoslovak Journal of Physics. 44:913-926
Classical theoretical methods for estimation of viscosity and thermal conductivity of gases are based on the kinetic theory and on the corresponding-state methods. By means of these methods, approximate relations between viscosity and thermal conduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dfa171b759f700eab64b7623388b7ab
https://doi.org/10.1007/bf01715485
https://doi.org/10.1007/bf01715485
Publikováno v:
International Communications in Heat and Mass Transfer. 21:605-614
A simple model of the controlled growth of a one-component solid material into a thermally undercooled liquid bath is presented. The model takes the density jump across the phase interface into account. Using the classical Mullins-Sekerka method, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28bfc04e8e98f327d78eafb86554f7c1
https://doi.org/10.1016/0735-1933(94)90059-0
https://doi.org/10.1016/0735-1933(94)90059-0
Publikováno v:
Czechoslovak Journal of Physics. 43:63-71
The influence of the microgravity environment on solidification processes is discussed. A simple model of the solidification of a binary-alloy is presented with the chemical diffusion influenced by the gravitational field. Using the results of Mullin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c912e91ba2106aadc4fa7e7c023b67f9
https://doi.org/10.1007/bf01589585
https://doi.org/10.1007/bf01589585
Publikováno v:
International Journal of Heat and Mass Transfer. 35:1787-1793
The solidification of a binary alloy is studied on a three-phase model (solid, liquid, mushy zone). The balance equations of the model are formulated globally over the whole region occupied by the alloy and are treated in a distributional sense. Conv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dd1c83a385751a1cc5e02870e398e13
https://doi.org/10.1016/0017-9310(92)90149-m
https://doi.org/10.1016/0017-9310(92)90149-m
Publikováno v:
Czechoslovak Journal of Physics. 40:301-316
A macroscopic computer model of a stationary two-phase system consisting of a melt adjacent to its solid phase is constructed which takes steady natural convection in the melt into account. The finite element method is used for the solution of corres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::645d567a82da0faf25eeb3fed74e9076
https://doi.org/10.1007/bf01597755
https://doi.org/10.1007/bf01597755
Publikováno v:
Acta Polytechnica, Vol 44, Iss 1 (2004)
The compressive strengths of unsealed samples of concrete at the age of 180 days and have been measured at temperatures 20 °C, 300 °C, 600 °C and 900 °C. All of tests were performed for cold material. We compared our results with those obtained i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df5d8e6151786338e3ca293bc6fed5b6
https://ojs.cvut.cz/ojs/index.php/ap/article/view/516
https://ojs.cvut.cz/ojs/index.php/ap/article/view/516