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The Continuity Indicators Calculation of E-ON ČR Distribution Network Segment
Girga, Eduard ; Černý, Pavel (referee) ; Paar, Martin (advisor)
The aim of this master’s thesis is calculation and analysis of reliability indicators of the company E.ON Česká republika, s.r.o. distribution network in the south Moravia territory (area of former Jihomoravská energetika) for the period of one year, from 1st November 2008 to 31st October 2009. We consider events incurred on overhead or underground lines of level of high voltage or directly connected with these lines. Events originated from extensive disaster interruption of electric energy supply caused by particularly unfavourable external effects are not considered, because network components can not be efficiently dimensioned on those influences. Known aspects of the events are time of origin, time duration, place and cause of failure inception. Analysis of reliability indicators is accomplished according to different point of view. The first aspect is the hours of day, during which the event lasted. The second aspect is the hours of day, during which the event incurred. The third one focuses component pointed as reliable for the origin of the event. The last standpoint is percentage load of the line outlet, on which the event occurred. We can ordain this load as the proportion of current flowing through the line outlet in the time of event inception and of the value of maximum current set up on the protection of the line outlet. Indications mentioned in the last sentence were searched in the dispatcher centre thanks to graphical interface of application RIS JME Brno. In the theoretical part of the work there is described the structure of distribution network and its fundamental influence on the continuity of electric energy supply, the ways of evaluation and increasing of electric energy supply reliability, regulation of continuity of electric energy supply with emphasis on regulation in the Czech Republic valid until 26th February 2010 and since 27th February 2010. The last theoretical part focuses on definition of failure and differentiation of failures according to various aspects.
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Java EE Organizer
Černý, Petr ; Martinek, David (referee) ; Kočí, Radek (advisor)
This thesis deals with applications for organization of time and contacts. It includes analysis of existing solutions, used architectures and brief characteristics of existing applications. Thesis also deals with developing a client application for Java EE applications, and discusses the basic technologies that are used in this eld (Swing, Java EE platform and its technologies). The practical part includes design and implementation of modules for managing contacts and tasks, which are incorporated into the demo application Java EE Organizer.
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One span frame bridge
Černý, Pavel ; Juříček, Lukáš (referee) ; Nečas, Radim (advisor)
The aim of this bachelor thesis is the design and analysis of bridge across the river. Three variants were designed. The structure was designed as a one-span frame bridge with a parabolic haunch with of span range of 24,0~m. The calculation of load efects eas made in software Scia Engineer and for evaluation was used MS Excel. Both design and relevant drawing documentation of the bridge deck and abutment.
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Overpass bridge across the highway
Černý, Pavel ; Šopík,, Leonard (referee) ; Nečas, Radim (advisor)
The topic of this thesis is detailed design of the supporting structure of a bridge. Three variants are designed. The structure is designed as a single beam bridge of 6 spans. The calculation of load efects make in software MidasCivil 2019 and Scia Engineer 18.1. The subject of the expertise of the structure is service limit state and ultimate limit state. For evaluation of cross sections is used MS Excel. Both design and relevant drawing documentation of the bridge deck and substructure. The design and assessment are according to the europien standards.
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The Study of the Operating Production Management
Mayerbergová, Ilona ; Ing. Jaromír Černý, Ph.D (referee) ; Jurová, Marie (advisor)
The goal of this diploma thesis is to use the principles of lean manufacturing to lean workplace and eliminate all forms of waste in this workplace. A part of this work is opti-mal design of the workplace in terms of ergonomics which should have a positive effect on shortening lead time and process cycle efficiency. Shortening the lead time will allow company to respond more quickly to customer requirements and this effect may subsequently lead to the drop in inventories.
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Study of the thermal and light conditions in the automobile headlamp with built-in light source of the new generation
Zachar, Martin ; Černý,, Pavel (referee) ; Černý, Pavel (referee) ; Raudenský, Miroslav (advisor)
This thesis deals with automotive headlamps, focusing on layout of temparature field and its influence on thermal stress of used materials, describes their history, kinds and ongoing research. Thesis shortly describes light and its characteristics, heat and heat transfer and means of temperature measurement. Main part of the tesis is dedicated to measuring front headlamp serving as a fog light, concretely measuring temperature field and illuminance depending of ambient temperature. Thesis contains everything from the first preparations, creation of measuring circuit, programming of measuring to processing acquired data. Thesis also compares cooler used for cooling luxmeter sensor, the comparision is between measured values and created simulation.
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Web Browser for IP Cameras
Černý, Pavel ; Veigend, Petr (referee) ; Zbořil, František (advisor)
The aim of the work described in this thesis was to enable live video streaming from IP cameras to selected users, using simply a modern web browser with no need to install special client-side software. The solution was found by utilizing programs FFmpeg (for communication with camera and video conversion to WebM format), Stream-m (for distribution of the data received from FFmpeg to clients), and a newly-created web application built on the Spring framework, which was used to control the aforementioned programs, and also allows camera management and user authorization. The resulting system reduces the effort required for client nodes deployment and maintenance. Thanks to the image size downscaling, the system brings about a considerable reduction of data flow in the network caused by camera output, and minimizes the load on client computers.
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Implementation of current European principles of public space solutions into Czech cities
Černý, Patrik ; Erben, Adam (referee) ; Pavlovský, Tomáš (advisor)
The goal of this thesis is to define the current public space of a city and to introduce its main elements and characteristics, also the planning principles of public space and types of public activities of a citizen in a city. The thesis is mainly focusing on the ideas and principles of a Danish architect and urbanist Jan Gehl, after who I am describing types of cities and as well as the analysis of main principles in city planning according to the book Cities for People. It describes the relationship between the citizen and the city and it follows the main questions of creating an ideal public space for its residents and visitors. After the conducted detailed research of a specific place, the thesis establishes positive and negative aspects of the given space and creates a methodology for designing the public space. Thanks to qualitative questionnaires, I evaluated the views of citizens on key questions about the quality of given public space.
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Biconical dipole antenna with circular polarisation
Urbaník, Jaroslav ; Černý, Petr (referee) ; Raida, Zbyněk (advisor)
Tato diplomová práce se zabývá teoretickými poznatky a návrhem bikónické antény pracující v kmitočtovém rozsahu 4 až 8 GHz. V rámci práce jsou také popsány způsoby impedančního přizpůsobení a vybrané typy polarizátorů elektromagnetických vln a radioprůzračných krytů. Na základě teoretických poznatků je určena koncepce návrhu bikónické antény a vybrán vhodný polarizátor pro zajištění kruhové polarizace vyzařovaných elektromagnetických vln.
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