Národní úložiště šedé literatury Nalezeno 462 záznamů.  začátekpředchozí436 - 445dalšíkonec  přejít na záznam: Hledání trvalo 0.01 vteřin. 
Malíř Jan Vochoč (1865-1920) a Balkán
Suchomelová, Marcela ; Černý, Marcel
Život Jana Vochoče lze vykreslit jako nenaplněnou pouť a hledání sama sebe a svého výtvarného výrazu. Tento umělec v letech 1898 až 1899/1900 pobýval v Bulharsku i na Svaté Hoře. Zajímavá je malířova korespondence z cesty na Athos, uložená v rukopisné sbírce dokumentačních a archivních fondů Etnologického ústavu AV ČR v Praze
Porous composites based on siloxane resin for hard tissue replacements
Suchý, T. ; Balík, Karel ; Sochor, M. ; Černý, Martin ; Hulejová, H. ; Pešáková, V.
A composite material based on polysiloxane and first on glass fabrics was prepared. The composite samples were prepared with controlled open porosity, the sizes of which were in the range: i) 0,2-0,4 mm, ii) 0,4-0,6 mm, and iii) >0,6 mm. For further improvement of osseointegration, a powder hydroxyapatite, particle size of 0,005 mm in the amount of 10 wgt %. The effects of surface treatment and hydroxyapatite matrix additives on osseointegration were studied by methods in vitro and in vivo.
Kompozity na bázi skla a polysiloxanů pro použití v biomedicíně
Suchý, Tomáš ; Balík, Karel ; Sochor, M. ; Černý, Martin ; Sedláček, R. ; Hulejová, H. ; Pešáková, V.
Byla studována velikost pórů kompozitů na bázi skla a polysiloxanů a její vliv na biokompabilitu.
Mechanical properties of a fabric reinforced carbon-carbon composite
Starý, V. ; Černý, Martin ; Glogar, Petr ; Houška, L. ; Kotek, Jiří ; Nevoralová, M.
Mechanical properties of plain weave, twill and satin reinforced carbon-carbon composites were investigated in dependence of their heat treatment temperature and impregnation.
Measurement of elastic constants of orthotropic C-C composite plates by resonant frequency method
Černý, Martin ; Glogar, Petr
A method was developed for determination of elastic constants of textile composite materials based on measurement of resonant frequencies of longitudinal and transversal vibrations of Timoshenko's beam.
Young's modulus of heat-resistant fibrous composites at elevated temperatures
Černý, Martin ; Glogar, Petr ; Nekoksa, Pavel
Elastic behaviour of unidirectional composites with matrix derived from cured polysiloxanes and reinforced with SiC (Nicalon) or alumina (Nextel) fibres was measured at temperatures up to 1300řC in order to assess limits of their potential utilization as structural material in air environment.
Oxygen resistivity of 2-D composites based on E-glass and siloxane
Balík, Karel ; Černý, Martin ; Kolář, František ; Křena, J.
2-D composites prepared from glassy fabric and siloxane resin as a matrix were cured and subjected to pyrolysis at 400, 500, 600řC in nitrogen. Materials were oxidized in dried air at 400 and 700řC for a period of 1h.
Interlaminar shear strength of textile reinforced carbon-carbon composite
Kotek, Jiří ; Glogar, Petr ; Černý, Martin
Interlaminar fracture of carbon fabric reinforced carbon composites with different volume fractions of reinforcement (Vf = 36 - 60 %) was investigated by tensile loading of double-notched specimens. Dynamic tensile and in-plane shear moduli of all materials increased with increasing Vf. The interlaminar shear strength yielded maximum values for specimens with volume fraction Vf ~ 48 %. After graphitisation, the in-plane shear modulus fell remarkably which is probably due to "stress graphitisation" of the matrix.
Ab initio simulation of three-axial deformation of perfect iron crystal
Černý, M. ; Šandera, P. ; Pokluda, J. ; Friák, Martin ; Šob, Mojmír
Ab initio electronic structure calculations of ideal strength, bulk modulus and equilibrium lattice parameter of iron in the body-centered-cubic lattice under three-axial tension are performed using the linear muĆn-tin orbitals method in atomic sphere ap proximation (LMTO-ASA) and the full-potential linearized augmented plane waves method (FLAPW). Magnetic ordering was taken into account by means of spin-polarized calculation. Two exchange-correlation energy approximations were employed, namely the local (spin) den-sity approximation (LDA) and the generalized gradient approximation (GGA). Computed values are compared with experimental data.

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