National Repository of Grey Literature 156 records found  beginprevious147 - 156  jump to record: Search took 0.01 seconds. 
Numerical simulation of the fire diffusion in mining passage
Michalec, Zdeněk ; Kozubková, M. ; Bojko, M.
Numerical simulations of the stable stratified flow in a 3D passage affected by a thermal source have been calculated with a standard k-e model. Furthermore, the radiation heat transfer model is implemented and species transport equations are defined too. The model allows a correct stratification and produces fairly accurate heat wall transfer.
Radiation Transfer in SF6 and PTFE Arc Plasmas
Aubrecht, Vladimír ; Bartlová, M. ; de Hesselle, M.
The switching arc or plasma is ignited inside a narrow nozzle of synthetic material (PTFE, Polythetraflourethylen). Due to the high emission of radiation from the arc the synthetic material ablates and causes a high overpressure inside the nozzle and
Calculation of radiative heat transfer in argon arc plasmas
Aubrecht, Vladimír
Radiative heat transfer is a significant energy exchange process in arc plasmas. In the paper, an approximate "Method of partial characteristics (MPC)" is used to evaluate radiation intensities, radiation fluxes and divergence of radiation fluxes in an arc plasmas of cylindrical symmetries at various plasma temperature profiles.
Nové výsledky v dozimetrii posádek letadel
Spurný, František
Important activities: The constitution of WG 21 of ISO TC/85 preparing a normative document on the dosimetry measurements onboard aircraft. The constitution of the Tasking group No. 50 of ICRU and ICRP with the goal to prepare a recommendation "Reference doses from cosmic radiation exposure of aircraft crews". The preparation of the fimal report on the EC Project DOSMAX. The preparation of EURADOS report for the committee on the article 31 of EURATOM. The acquisition new experimental data on aircraft crew exposure, partially in the frame of contract of author`s institute with Czech Airlines, a.s

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