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Nd:YAG pulsed laser cutting of metals
Chmelíčková, Hana ; Polák, Marek
Pulsed Nd:YAG laser KLS 246-102 with average power 150W was developed for cutting, drilling and welding of metal and non-metal materials with thickness up to 2 mm. We chose an usually used kind of metal, steel (class 11) to test the optimal cutting conditions on various thickness from 0.1 to 1 mm.
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Broadband Internet connection in the Czech Republic and in selected countries (EU and non EU)
Nemejovský, Michal ; Toman, Prokop (advisor) ; Kalina, Jaroslav (referee)
The purpose of this work is to provide a view of the situation in high speed Internet connection in the Czech Republic in comparison with the situation in other countries. At the beginning we present connection possibilities and actual supply of these services in the Czech Republic. This is followed by a comparison of the Internet connection supply in the Czech Republic with available supplies in two other selected countries. One country is a member state of the European Union -- Austria, and the other country is a state located outside the EU -- Canada. This study does not only compare technological aspects, but takes into consideration the economic situation of individual countries as well. Comparative criteria are described in detail in the corresponding chapter. Finally, there is an evaluation of the results and a reflection on possible future developments.
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Základní principy v modelování dopravních toků
Šimáně, Čestmír ; Fábry, Jan (advisor) ; Kořenář, Václav (referee)
Research workers started to investigate traffic flows already in thirtieth years of twentieth century. But it is true that in these times was minimal the number of vehicles on roads. However, at the end of fifties this number started to increase. So according to this it was necessary to find sophistry tools to their monitoring. More engineers interested in the theory of traffic flow and they started to describe interactions between vehicles through new theories and models. Nowadays, this work continues, because the number of vehicles on roads is still increasing. The aim of this thesis is to make reader understood the basic terms, quantities, approaches and models in theory of traffic flow.
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