National Repository of Grey Literature 256 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Interaktivní webová mapová aplikace budovy PF JU - Jeronýmova 8 a 10
DVOŘÁK, Petr
The aim of this thesis is to create an interactive web map application and a wall plan of the Jeronýmova 8 and 10 buildings, which is the residence of the Faculty of Education. Geographic information systems were used to reach this goal and the created interactive map application is published via ArcGIS Online utilities. The very basics of this project are made of a collection of data of Jeronýmova buildings. The data are partly official and partly freshly collected. There is also an original design of symbolism included. At the end there is a commentary on the possible use of this project and its evaluation and comparison with another similar projects.
In-situ reductive dehalogenation
Dvořák, Petr ; Stejskal, Vojtěch (advisor) ; Nosek, Jaroslav (referee)
This master thesis is focused on groundwater remediation of chlorinated ethylenes and methanes in the area of chemical factory Spolchemie in the Czech Republic, Ústí nad Labem city. For these purposes nano zero valent iron particles were used. For the remediation two separate applications of different types of particles together in suspension with tracer (lithium chloride), were carried out. The results from the first application were evaluated by the supervisor of this thesis and are briefly summarized and discussed together with the second application which was evaluated by the author of this thesis. Second application of particles was carried out in October 2015 and observed for 424 days. Observation consisted of monitoring of groundwater level, physical-chemical parameters and collection of water samples for the analysis of concentrations of chlorinated hydrocarbons, their degradation products and several chosen ions. Nanoiron particles had the assumed effect onto the physical-chemical parameters and reduction of contamination. The application of tracer had proven the expected groundwater flow and made a possibility to distinguish between the process of reductive dehalogenation and dilution caused by the injected water, the dilution did not exceeded 5 % in most monitored points. Other...
Electron beam lithography on non-conductive substrates
Hovádková, Zuzana ; Šamořil, Tomáš (referee) ; Dvořák, Petr (advisor)
The expansion of electron beam lithography has been really fast during last years. It is mostly because its capability to create big structures with a fine resolution. This study focuses on electron beam lithography on non-conductive substrates, exactly on glass. The lithography on glass is mostly used in life sciences. Because of the transparence of the substrate and its non-toxicity it can be used for cell adhesion. In the experimental section there are shown and compared two techniques how to compensate the charge accumulated on the top of the surface.
Fabrication and characterization of plasmonic nanostructures
Bačo, Ondřej ; Kvapil, Michal (referee) ; Dvořák, Petr (advisor)
This bachelor thesis deals with fabrication and characterization of plasmonic nanostructures. Graphene on a doped silicon substrate with a 285 nm thick layer of silicon dioxide was used for fabrication of these structures. Graphene ribbons with width in the order of hundreds of nanometers were prepared using electron beam lithography (EBL) and reactive ion etching (RIE). Steps in fabrication process were monitored utilizing optical and atomic force microscopy (AFM). Prepared graphene nanostructures were characterized with scanning electron microscope (SEM) and Fourier transform infrared spectrometer (FTIR).
Activities of the Police of the Czech Republic during Demonstrations
DVOŘÁK, Petr
The general public is interested in actions of the Police of the Czech Republic during demonstrations fuelled by the political situation and the rise of various extremist movements. Demonstrations are always covered by the media and people often express their opinion about the operation of specialized units of the Czech Police. Due to the non-ending discussions, I consider this theme to be interesting and topical for its processing in this bachelor thesis. The thesis defines the basic concepts, the specifics of the Police of the Czech Republic, i.e. its tasks, obligations and authorizations to intervene, use coercive means, procedures and tactics to control riots. Furthermore, the work outlines individual units of the Czech Police intervening during the demonstration,s such as the anti-conflict team, the specialized unit for riot control and the unit for reinstatement of order. Last but not least, the thesis focuses on the demonstration participants who profess some kind of political belief. As an example and a fact of interest, the deployment of the riot control unit of the South Bohemian Region in period 2010 1st half of 2016 is described, which proves that the need for this riot control unit is increasing steadily. The information contained in the thesis can be beneficial not only for students, but also for the general public.
Hydraulic part of plunger pump adjustment for higher pressures
Dvořák, Petr ; Klas, Roman (referee) ; Habán, Vladimír (advisor)
First part of the master thesis is about displacement pump. Second part is about power plunger pumps. In the third part are equations for power plunger pumps. In the last part the strength calculation of the proposed hydraulic part of the plunger pump was performed using the finite element method in ANSYS. The screw fatigue life is also calculated here. At the end of this section, ANSYS Fluent flow calculation is performed in the suction valve area.
Unmanned aircraft powertrain characterization
Serediuk, Vadym ; Matějů, Jiří (referee) ; Dvořák, Petr (advisor)
The aim of this bachelor thesis is to recommend the most efficient electric propulsion system from the selected ones. The beginning is devoted to research in the field of electric propulsion systems and to description of their main parameters. The theoretical part is followed by a practical one, which is divided into two series of measurements. First, the performance characteristics of various motor-propeller combinations are measured. On the basis of the received data, a comparison of propulsion systems in terms of efficiency is made, the most suitable propeller-motor combination is recommended. The last part is devoted to the measurement and visualization of the airflow velocity field behind the propeller.
DC/DC converter 24 V / 320 V / 60 W for a back-up supply source with a galvanic separation
Dvořák, Petr ; Martiš, Jan (referee) ; Vorel, Pavel (advisor)
This bachelor‘s thesis deals with the design, dimensioning and realization of a DC/DC 24 V / 320 V converter with a output power of 60 W. In the first part there is a short description of the linear stabilizer and then the switching sources with their dismemberment. Based on that chapter, was selected the flyback converter. The second part deals with components design and description of the control circuit. At the end, the construction of the converter with the verification measurement records is shown.
Legal regulation of territorial protection of water in terms of quantity
Dvořák, Petr ; Sobotka, Michal (advisor) ; Stejskal, Vojtěch (referee)
The thesis deals with the legal regulation of territorial protection of water in terms of quantity, which is contained in the Water Act. I am only focusing on the Protected Areas of Natural Water Accumulation and Surface Water Accumulation Protected Areas as they have significant potential to reduce the effects of drought. Both areas are viewed through common problem, which is the point of view of the amount of water. The legal regulation of the territorial protection of waters in terms of quantity is discussed in connection with other laws. The aim of this work is to answer the question whether the legal regulation of territorial protection of waters in terms of quantity in the Water Act is sufficient to enable the Czech Republic to adapt adequately to the ongoing climate change, that ultimately causes the loss of water. The first part of the thesis deals with sources of legal regulation of territorial protection of water in terms of quantity, further includes the systematics of the Water Act and the Strategy on Adaptation to Climate Change in the Czech Republic (Adaptation Strategy of the Czech Republic). The second part analyses the Protected Areas of Natural Water Accumulation, prohibitions therein contained prohibitions, exemption from prohibitions and damage compensation. The third part deals...
Termination of employment
Dvořák, Petr ; Hůrka, Petr (advisor) ; Štangová, Věra (referee)
The thesis deals with termination of employment. The thesis focuses on various forms of termination of employment according to the then applicable legislation throughout history, i.e. before the enactment of the first legal regulation of Labour Law, which was Act No. 65/1965 Coll., The Labour Code, pursuant to Act No. 262/2006 Coll., the Labour Code, which replaced the above Act. Attention is given to the amendment of the Labour Code effective from January 1, 2012 which relates to arranging of a probationary period, termination of employment during the probationary period, the exceptions to the prohibition of dismissal, lengthening of the period of dismissal moderation of the court; sets a new reason for dismissal in section 52. h) of the Labour Code. This thesis also deals with the issue of termination of employment in EU countries (Finland, Belgium, Austria), namely agreement on termination of employment, dismissal and termination of employment during the probationary period. Attention is also given the comparison of Czech law with foreign law, international documents, legislation and numerous case law. In conclusion, the modified institute mass layoffs and legal documents related thereto are examined, in particular Council Directive 75/129/EEC of February 17, 1975 on the approximation of the...

National Repository of Grey Literature : 256 records found   1 - 10nextend  jump to record:
See also: similar author names
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79 DVOŘÁK, Petr
5 Dvořák, P.
42 Dvořák, Pavel
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