National Repository of Grey Literature 822 records found  beginprevious811 - 820next  jump to record: Search took 0.01 seconds. 
Mapování teplotního a rychlostního pole ve volném proudu horkého plynu
Gregor, Jan ; Jakubová, I. ; Mendl, T. ; Šenk, J.
In the paper the measurements on hot gas mixture free jet are analyzed. The main interest is oriented on the analysis of the distribution of the individual species in the jet based on the vector form of the continuity and momentum equation. In the continuity equation the diffusion member is involved. To simplify the problem, the temperature and velocity fields are approximated by suitable functions. The calculation process is applied on the jet generated by a hybrid water stabilized plasma torch with argon added into the chamber of a plasma heater.
Determination of thermo-physical parameters of Carboniferous rocks in prospective area of underground coal mines of Ostrava-Karviná coalfield
Zotyka, Václav
Determination of thermally-physical properties of carboniferous rocks in OKR. Values are used at calculations of temperature and humidity changes in mine weather.
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.
Documenta geonica 2001. Geonics 2001. Temperature and its influence on geomaterials
Konečný, Pavel ; Kožušníková, Alena
Institute of Geonics organized during the last decade the series of international conferences Geomechanics (1991-1993-1996).In the connection with recent research activities of the Institute of Geonics, the relevant questions of temperatures and their influence on geomaterials was picked up as the topic of the symposium Geonics 2001.
Temperature effect on selected mechanical properties of rocks of Skalka locality
Konečný, Petr
Results of research of temperature effect on selected mechanical properties of rock of Skalka locality are discussed.
Theoretical Dependence of Temperature of Burning Coal and Wood Particles on Conditions of Fluidized bed combustion
Svoboda, Karel
The report brings presentation and solution of two theoretical models for estimation of temperature of burning particles of low-ash coals (smaller particles) and high ash coals with particles above 1 mm in fluidized bed combustion. The attention is focused mainly on effects of fluidized bed temperature, operating pressure and size of particles on difference between fluidized bed (bulk) and burning particle temperature.
High temperature dynamical thermomechanical analysis
Černošková, Eva ; Černošek, Z. ; Holubová, J.
DTMA was used for measurements of NBS 711 model glass. Results were compared with measurement of DSC, TMA and viscosity.
Study of biodiversity and account of haematophagous dipterous insects, mainly mosquitoes, in PLA Palava and Litovelské Pomoraví
Gelbič, Ivan ; Minář, Jan ; Olejníček, Jiří
Changes in the biodiversity of haematophagous insects, mainly mosquitoes and effect of artificial flood on the account of mosquitoes were studied in PLA Palava. Global changes of temperature on the biodiversity of mosquitoes in PLA Palava and Litovelské Pomoraví were studied too.
Contribution to experimental research of thermo-mechanical behavior of tram wheel rubber segment
Pešek, Luděk ; Vaněk, František ; Veselý, Jan ; Cibulka, Jan
This contribution deals with press-tensile dynamic tests of tram wheel rubber segments. The evaluation of dynamic quantities was performed using hysteresis loops of force response versus loading displacement. The obtained dynamic behavior of the segments will be used for their numerical modeling in vibro-acoustic finite element tram wheel model. For research of thermo-mechanical interactions of elastomers in dynamic loadings, the inner temperatures were measured by use of single ended bead-type thermistor.

National Repository of Grey Literature : 822 records found   beginprevious811 - 820next  jump to record:
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