Egg-shell Ni/Al 2 O 3 Catalyst for the Hydrogenation of Mixed C 5 Alkenes

Abstract A process of Ni/Al 2 O 3 eggshell type catalyst preparation has been developed in laboratory scale. Active catalysts with high Ni content, in which the active metal is concentrated in a very thin layer below the particle surface, were prepared by this process. Wet impregnation of carrier particles with a solution of inorganic Ni salt in organic solvent, in particular ethanol and acetone, was the basic principle of the preparation method. Catalysts with a maximum Ni content of 20.9 mass %, concentrated into a layer of thickness of 770 µm were prepared when ethanol was used as the solvent, while 15.4 % Ni maximum concentration and 622 µm layer thickness were achieved when acetone was used as the solvent. The catalysts prepared were characterized by following analytical methods: XRD, BET, Raman spectroscopy and EDS. The catalysts activities were tested in the gas phase C 5 olefins hydrogenation. Despite the lower Ni content, the catalyst impregnated by Ni nitrate, dissolved in acetone was characterized by higher activity in comparison with the catalyst impregnated by ethanol solution

Bohuslav Martinů: "The Greek passion" - complex scenographic project

Familiarity with theme of The Greek passion. Nikos Kazantzakis ana Bohuslav Martinů - creation of the opera. Productions comparison of The Greek passion. Costume an set design solutin of the production

Complex scenohraphic solution: J.W. Goethe FAUST I.

Tato práce zabývá projektem mého magisterského studia, zaměřeného na existencialismus a absurditu lidského života. Práce se zabývá dramatickými texty, které jsem zpracovával v průběhu magisterského studia na KS. Jsou to následující tituly: Jan Weiss: Dům o tisíci patrech, Josef Čapek: Země mnoha jmen, George Büchner: Vojcek a především J. W. Goethe: Faust I. Práce poukazuje na společné jmenovatele předepsaných titulů a sleduje významovou linku konfliktu jedince a společnosti. Hledá komplexní scénografická řešení pro zde jmenované dramatické tituly. Hlavním tématem této práce je komplexní scénografické řešení hry J. W. Goetha: Faust I. Zbylé dramatické tituly sloužily, jako příprava před prací nad tímto dramatickým textem

Study of Vivaldi algorithm in energy constraint networks

The presented paper discusses a viability of Vivaldi localization algorithm and synthetic coordinate system in general to be used for localization purposes in energy constraint networks. Synthetic coordinate systems achieve good results in IP based networks and thus, it could be a perspective way of node localization in other types of networks. However, transfer of Vivaldi algorithm into a different kind of network is a difficult task because the different basic characteristic of the network and network nodes. In this paper we focus on the different aspects of IP based networks and networks of wireless sensors which suffer from strict energy limitation. During our work we proposed a modified version of two dimensional Vivaldi localization algorithm with height system and developed a simulator tool for initial investigation of its function in ad-hoc energy constraint networks

Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser – plasma interaction

In recent publications on laser-induced fluorescence (LIF), the measurements are usually constricted to the region of weak exciting-laser power – the so called linear LIF. In this work, a practical formula describing the dependence of partially saturated fluorescence on the exciting-laser power is derived, together with practical implementation suggestions and comments on its limitations. In the conclusion, the practical formula