National Repository of Grey Literature 1,044 records found  beginprevious1027 - 1036next  jump to record: Search took 0.03 seconds. 
Testování a modelování napěťových polí v tenkých tvrdých nanokompozitních multivrstvých a monovrstvých povlacích
Fořt, Tomáš ; Grossman, Jan ; Sobota, Jaroslav
To optimize the design of a coating/substrate system before the deposition we apply modelling of the stress fields in the coating/substrate system. After the deposition of the designed system we use the dynamic impact tester to evaluate wear resistance of the system in dynamical load.
Has treatment of young corn plants with 24-epibrassinolide positive influence on plant resistance against droughtness?
Rothová, O. ; Kočová, M. ; Holá, D. ; Trubanová, N. ; Kohout, Ladislav ; Šíša, Miroslav
Inbred and hybrid corn genotype grown from seeds treated in different concentrations of 24-epibrassinolide were exposed to 7 days long of droughtness. Some growth parameters proved positive influence of 24-epibrasinolide application.
The effect of cadmium on spinach stress metabolism
Pavlíková, D. ; Staszková, L. ; Pavlík, Milan ; Szaková, J. ; Najmanová, J.
Activity of glutamate kinase as stress indicator of plant metabolism was determined and significantly desreased activity after application of high Cd levels was observed.
Non-stationary stress state of transversally loaded thin and thick plates
Valeš, František ; Pelikán, Vladimír ; Volek, J. ; Červ, Jan
The solutions of non-stacionary stress state of thick and thin plates transversally loaded on one of their faces are described. By results comparison, the validity limits of thin plate approach can be found. The solution of the thick plate is based of quations of motion of 3D continuum; using basic models from the Kirchhoff to Timoschenko-Mindlin ones the thin plate solutions are obtained.
Influence of temperature on permeability and stress strain behaviour of granodiorite
Daněk, T. ; Konečný, Pavel ; Kožušníková, Alena ; Nowakowski, A.
Behaviour of rock samples in unaxial and triaxial stat of stress is influenced by a lot of factors as mineral composition and origin of the rock, degree of diagenesis etc. One of the important factors is temperature. Especially high temperature influences very strong the behaviour of the rocks. High temperature could be generated in varous ways in rock massif. The research results could be improved in solution of serious problematic of burning in tunnels, underground waste storage or modelling of temperature field in rock massif.
Stress evaluation on the head of seismic wave
Petroš, V. ; Holub, Karel
Paper is intended to investigation of ground velocites of the seismic waves propagation in the rock mass during rockbursts and other anomalous geomechanical events. These data will be used for experiments performed with the aim of comparison the behavior of rock in-situ and under laboratory loading.
Two paramether description of crack opening displacement
Hutař, Pavel
The basic aim of this paper is to describe the influence of T-stress on a crack profile, crack tip opening displacement CTOD and crack mouth opening displacement CMOD. Different methods of determination CTOD values are discussed. Numerical analysis of specimens is made by finite element method (Ansys). These result are compared with values determinated by modified boundary layer model MBLM.

National Repository of Grey Literature : 1,044 records found   beginprevious1027 - 1036next  jump to record:
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