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Hidden symmetry in classical and quantum physics
Karhan, Pavel ; Hořejší, Jiří (advisor) ; Novotný, Jiří (referee)
In the present work I study spontaneous symmetry breaking. This interesting phenomenon is an important part of the elementary particle physics and thanks to it, it is possible to generate masses of fermions and gauge bosons in the Standard Model. However, in this work I try to present a more general view and I bring up a few examples from various parts of physics, starting with classical mechanics and ending with quantum eld theory. I also study consequences of spontaneous symmetry breaking and discuss dierences in manifestations of this phenomenon in theories with nite and innite number of freedom. This work is primarily meant as a consistent survey of already known results supplemented with their sueciently detailed technical derivation in a comprehensible form.
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Brandt's East-Policy and Czechoslowakia 1969-1974
Novotný, Jiří ; Moravcová, Dagmar (advisor) ; Kučera, Rudolf (referee)
Die politische Fühgrung der ČSSR begann die Vorbereitungen der Verhandlungen mit der BRD auf Grund einer Weisung von Leonid Breschnew auf der Tagung des Politischen Ausschußes des Warschauer Paktes vom 20. August 1970. Bis dahin war die ČSSR einem wirksamen Druck der SED-Parteiführung ausgesetzt, die der Regierung Brandt feindlich gegenüberstand und von der Brandts Ostpolitik ständig warnte. Die Vertragsverhandlungen begannen zunächst mit Vorgesprächen, die von tschechoslowakischer Seite durch den Stellvertretenden Außenminister Milan Klusák (ab September 1971 den Stellvertretenden Außenminister Jiří Götz) und von deutscher Seite durch den Staatssekretär Paul Frank geführt wurden. Von März 1971 bis April 1973 fanden insgesammt sechs Vorgesprächsrunden statt, auf Drängen der tschechoslowakischen Seite wurde vor allem die Frage der Ungültigkeit des Münchener Abkommens zum Verhandlungsgegenstand. Der tschechoslowakische Standpunkt war, daß das Münchener Abkommen der Tschechoslowakischen Republik "unter Androhung von Angriffskrieg und Gewaltanwendung aufgezwungen wurde, daß es Bestandteil einer verbrecherischen Verschwörung Nazi-Deutschlands gegen den Frieden sei und eine schwere Verletzung der Grundregeln des Völkerrechts darstelle, und daß es deshalb von Anfang an ungültig sei, mit allen sich daraus...
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Sewage connections to the sewer network
Novotný, Jiří ; Raček, Jakub (referee) ; Hluštík, Petr (advisor)
The Bachelor thesis comprehensively focuses on the issue of sewerage connection. The first part deals with technical sewerage connections approaches according to the applicable standards and laws. Secondary the thesis describes a procedure of furnishing sewerage connections. The following part emphasizes the steps which has do be done by a builder to get a permission from the construction authority and the operator to approved the connection. The last part compares selected city standards that clearly define the rules for a construction and an operation of the sewer system in the area.
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An Arrhytmia Classifiication Based on RR Interval
Novotný, Jiří ; Škutková, Helena (referee) ; Kozumplík, Jiří (advisor)
This bachelor’s thesis deals with automatic classification of cardiac rhytm based on the sequence of RR intervals. The theoretical part deals both with characteristics of arrhytmias, which have been classified and the principles of the detectors and classificators used in this thesis. In the practical part, the QRS detector based on the calculation of the envelope of the ECG signal was realized in Matlab. Furthermore, the algoritm classifying arrhytmias based on the analysis of RR intervals was created. The reliability of the detector and the efficiency of the classificator was tested on the standard database CSE. The sensitivity of the detector was 98,28% and its positive predictive value was 98,38%. The diagnoses of the implemented classificator concurred in 73,17% with the cardiologists‘ diagnoses.
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Forwarding bridge of bucket-wheel excavator
Zeizinger, Lukáš ; Novotný, Jiří (referee) ; Pokorný, Přemysl (advisor)
The document deals inspecting forces of the structure. The task of diploma thesis is analyze the crane load and chech up the stress of steel construction. Perform stress analysis forwarding bridge of bucket-wheel excavator by using finite element method. Further assess the consequences resulting from the design modifications. The project was carried out with cooperation with NOEN, a.s.
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Impact of Drivers' Working Regimes in Freight Road Transport on Transport Safety
Máša, Vojtěch ; Novotný, Jiří (referee) ; Libertín, Josef (advisor)
Working arrangements are restrictive limits for drivers important for both motor carriers and drivers. Have a major impact on the logistical arrangements of manufacturing companies that transport their goods by road. Failure to comply with these limits, is recently one of the major problems in road transport and leads to unfair competition between road hauliers. Carrier's failure to obtain such social legislation crucial competitive advantage. Recently the problem devoted much time from the perspective of politicians. States, violations of social legislation by the carrier and the driver severely punished and often the articles we read on the operating modes of drivers and their associated hazards of freight transport, road safety hazard, danger for drivers of cars. For 10 years devoted to the issue and participate in the creation of training materials on the subject of Logistics and. In my work I wanted to examine the issue of working arrangements drivers from professional point of view - how the limits are set and working arrangements whether they comply with road safety. Next, consider the statistics of accidents in the CR in relation to drivers' working arrangements and to propose changes that would contribute to the improvement of social legislation in relation to road safety.
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