National Repository of Grey Literature 142 records found  beginprevious132 - 141next  jump to record: Search took 0.01 seconds. 
Komunikační protokol pro kontrolu polohy a tvaru plazmatu tokamaku COMPASS
Janky, F. ; Horáček, Jan ; Pereira, T.V.
The Compass tokamak, reinstalled at IPP Prague, will have a new digital plasma position and shape control system. Development of a communication protocol is necessary for the connection between the energetics devices built by CKD company and the operator - either human or computer together. The present work is focused on development of such communication protocol. Human operator can send a request for status of energetics, time synchronization, counting errors, etc. through communication protocol. Predefined currents for individual power supplies will be send through the communication protocol. In the future this system will be replaced by feedback control system integrated in CODAC (Control Data Acquisition and Communication system).
Detailní měření poloidální rychlosti fluktuací hustoty a plovoucího potenciálu v okrajovém plazmatu tokamaku CASTOR
Brotánková, Jana ; Stöckel, Jan ; Hron, Martin ; Ďuran, Ivan ; Horáček, Jan
The ion saturation current and floating potential are measured with high temporal (1 micro s) and spatial (2.5 mm) resolutions within the edge plasma of CASTOR tokamak by two poloidally spaced radial arrays of Langmuir probes. The radial electric field and the phase velocity of plasma fluctuations are determined. It is found that radial profiles of both of these quantities are strongly sheared in the proximity of the last closed flux surface. In the proximity of the VSL, the shearing rate is higher than the characteristic frequency of plasma fluctuation and reduction of fluctuation level is observed.
Vysokopovrchové hydrodesulfurizační katalyzátory MoO3/TiO2
Gulková, Daniela ; Kaluža, Luděk ; Vít, Zdeněk ; Horáček, Jan ; Macháčková, Eva ; Zdražil, Miroslav
The aim of the present study was to investigate three sets of catalysts supported over TiO2 with high surface area of 140, 230 and 407 m2 g-1. The catalysts of various loading were tested for HDS of thiophene and characterised by temperature-programmed reduction, XRD and measurement of the point of zero charge (PZC) and texture.
Vysokopovrchové hydrodesulfurizační katalyzátory MoO3/TiO2
Gulková, Daniela ; Kaluža, Luděk ; Vít, Zdeněk ; Horáček, Jan ; Macháčková, Eva ; Zdražil, Miroslav
MoO3/TiO2 were prepared by impregnation of TiO2 supports with surface areas of 140, 230 and 407 m2g-1. MoO3 loading was in the range 2-32wt.%. The point of zero charge of the supports was 5.0, 8.1 and 10.5, respectively, and decreased with MoO3 loading to the value for MoO3 (2.1). According to the point of zero charge the supports were saturated with a molybdena monolayer at approximately 12, 24 and 14 wt.%, respectively. Temperature-programmed reduction exhibited four peaks, which were assigned to the stepwise reduction (Mo6+ to Mo4+ to Mo0) of tetrahedral monolayer species, po
Pursuit of Identification of the Resuspended Aerosole in the Selected Area of Prague. Measurement in the Traffic Tunnel
Tydlitát, Vratislav ; Kotlík, B. ; Horáček, Jan ; Schwarz, Jaroslav
On acetylcelulose and silica filters were captured aerosols from the tunnel atmosphere before and after the spring cleaning by washimg of the tunnel Strahov. The measurements were performed in up and down tubes of the tunnel. The concentration of crustal elements in the PM10 aerosole fraction in the atmosphere of tunnels were about two times higher after cleaning than before.The effect is attributed to increased abrassion of the concrete roadway after washing of his surface. The concentration of the total carbon in the atmosphere of the tunnel decresed after cleaning to one thir
Analýza relaxačních jevů v tokamaku CASTOR vyvolaných nabíjením okrajového plazmatu hluboce vnořenou elektrodou
Brotánková, Jana ; Stöckel, Jan ; Hron, Martin ; Štěpán, Michal ; Peterka, Matěj ; Horáček, Jan ; Ďuran, Ivan ; Spolaore, M. ; Peleman, P.
Transport of plasma to the walls is one of the crucial topics in magnetic confinement fusion research. In tokamak CASTOR, during special regimes with strong biasing of plasma, we can observe relaxation events, corresponding to increasing and collapsing of a transport barrier. High spatially and temporally resoluted arrays of probes enable us to describe these phenomena in details.
Identification of Emissions from Internal-Combustion Engines in the Atmosphere of Prague. Diesel Engines
Tydlitát, Vratislav ; Horáček, Jan ; Schwarz, Jaroslav ; Karban, Jindřich ; Kotlík, B.
The non-carbon element composition of aerosols from tunnels determined in spring 2006 corresponds to the composition of aerosols collected in spring 2005 in Prague 10 at a busy street (R2 =0,96). Non-carbon element composition of aerosols from tunnels S and M determined in July 2006 is close to the composition of aerosols collected in July 2005 in Prague 10 (R2 =0,9 a 0,98) and also to the data from a street with heavy traffic in Prague 5 - Radotín. Based on these findings, we see the potential of utilizing the non-carbon composition data from tunnel aerosols for the detection of aerosol generated by heavy road traffic in other locations.

National Repository of Grey Literature : 142 records found   beginprevious132 - 141next  jump to record:
See also: similar author names
6 HORÁČEK, Jakub
1 Horáček, J.
6 Horáček, Jakub
1 Horáček, Jan Jiří
68 Horáček, Jaromír
12 Horáček, Jaroslav
25 Horáček, Jiří
3 Horáček, Jonáš
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