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Application of overvoltage protection in LV networks
Knebl, Jan ; Novotný, Jan (referee) ; Bátora, Branislav (advisor)
This paper describes the design of surge protection for objects of civil construction. The aim of this paper is to acquaint the reader with the problems of this region, which is nowadays especially for houses neglected. The introductory part of the thesis is focused on the theoretical analysis of the problem and become familiar with the standards in force, without which a person moving in this field certainly can not do. In the first major section is a repartition surge in general terms. In the second chapter, a repartition of surge protection on the inside and outside and a description of the individual components of these protections. The third chapter is made complete design protection for the school building, the first step is an analysis of the risks to unprotected building, then the protected and ultimately design of internal and external surge protection. In the last chapter, a check is made of the risk analysis using DEHN Support.
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Negative-Phase-Sequence Protection of Generator
Babík, Peter ; Novotný, Jan (referee) ; Orságová, Jaroslava (advisor)
This bachelor thesis deals with the effect of unbalanced load on a generator and principles of its protection. At first the characterization of operating failures and generator's abnormalities are described. Further the analysis of unbalance in electric system and its effect on the generator is presented, especially the effect of negative phase sequence on the armature. The end of the theoretical section deals with the principles of unbalanced load protection. In the practical part the punctual characterization of used apparatus is presented, namely the machine terminal REM 543 and a tester Omicron CMC 353. Furthermore the individual settings of each apparatus are discussed along with the testing of chosen negative phase sequence protection.
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Proposal for the Creation of a Regulatory Base for Manufacturing the Company
Novotný, Jan ; Vostřel, Josef (referee) ; Jurová, Marie (advisor)
For this thesis company Poličské strojírny a.s. was choosen,which deals mechanical engineering. This company is located in Bořiny near the city of Polička. This thesis deal with proposal on a new regulátory base of selected components and portfolio in th particular company. The first part of thesis containstheoretical basis and totalanalysis of the company. In the second part of this thesis is created new standard of components including sugestion of the calculation. Finally total assets are evaluated in this thesis.
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Mathematical models for transportation problems
Votavová, Helena ; Novotný, Jan (referee) ; Popela, Pavel (advisor)
The thesis deals with modelling and solution techniques for the selected transportation problems. Firstly, historical remarks and application-related comments are introduced. Then the selected transportation problems are defined and mathematical programming and graph theory concepts are utilised to model them. The travelling salesman problem and suitable algorithms are under focus. The original implementation in GAMS and Python is discussed. Algorithms have been tested for the instance based on the set of 73 towns in the Czech Republic. Finally, the test results are evaluated and compared.
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Application of geographic information systems in company
Ratičák, Milan ; Novotný, Jan (referee) ; Kříž, Jiří (advisor)
The aim of this Master´s Thesis is to evaluate abilities of the ArcGIS geographic information system. It explores the possibility of extending it´s practical application to company purposes in conditions of Czech Republic. Ths thesis explores a practical application of geomarketing, traffic tools, risk analysis, optimization and planning, cartography, 3D visualization and usage of GIS as a map server. Final task is to describe potential and application of geographical information systems at different types of companies, which can be used as a base for distribution to customers from this market segment.
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Loading device for multi-storey bakery oven
Novotný, Jan ; Zborník, Radek (referee) ; Škopán, Miroslav (advisor)
This thesis is aimed at the design of a loading device for a multi-storey bakery oven, which is going to be located in a bread production line. The introduction describes a principle of operation of the bread line and defines the parameters of the device. Furthermore, the hygienic, design and material requirements for the machines which are used in a food industry are briefly stated. Next part summarizes the possibilities of design solutions and the chosen concept. The construction part is aimed at the design of the conveyor and the scissor mechanism. In the calculation part, a static calculation of the lifting mechanism and a strength check of its arms and pins is performed. This thesis also includes the design of a hydraulic circuit for a stroke drive. Finally, the method of a control of the stacker and its safety elements are discussed.
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Design of collection optics for in-situ Laser-Induced Breakdown Spectroscopy analysis
Švábíková, Anna ; Novotný, Jan (referee) ; Pořízka, Pavel (advisor)
The subject of this bachleor thesis is an optomechanic design for a remote laser induced breakdown spectrometry (LIBS) apparatus. The aim of the bachleor thesis is a design of focusing and collecting optics due to given parameters. This work presents general theoretical basics of LIBS. However, particular attention is given to the description of LIBS instrumentation. Part of this work is a research on remote LIBS anaylysis, particularly on its instrumentation. In the construction part, several optical designs are presented and thereafter the one with best parameters is chosen. The nal output of this thesis is optimisation of chosen optical desing, followed with a construction design of focusing and collecting optics with enclosed drawing documentation.
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Mobile Application for Learning to Play Drums
Novotný, Jan ; Zemčík, Pavel (referee) ; Beran, Vítězslav (advisor)
This bachelor thesis aims to design and create a mobile application for teaching percussion playing and rhythmic reading training. The application contains several lessons with exercises that are displayed in the form of music notation. It is made possible to play and practice individual exercises accompanied by a metronome. Furthermore, it offers an analysis of the play on the instrument and provides feedback on the quality of playing. The application is developed on the Xamarin platform for use on Android and iOS operating systems. The result of this work is an application that will serve drummers to practice and provide an evaluation of the accuracy of the played exercise and thus will help to improve their playing skills.
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Wedgewise correction for laser spectroscopy measurements
Schiffer, Štěpán ; Novotný, Jan (referee) ; Klus, Jakub (advisor)
One of the areas where LIBS is used is the creation of chemical maps of studied samples. Measurements made by this method are significantly influenced by the lens to sample distance. At the wedgewise samples this distance is changing during the measurement which decreases the quality of the chemical maps created. In this bachelor’s thesis a method of wedgewise correction is proposed and experimentally verified. A part of this thesis is a description of basics of laser spectroscopy and a summary of some variables influencing the LIBS experiment. The main part of the thesis is a proposal of wedgewise correction algorithm. At the end the results of measurement with the use of the proposed method are presented.
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Geometry of protein moleculs
Novotný, Jan ; Maděránková, Denisa (referee) ; Škutková, Helena (advisor)
Objective of this work was to study the spatial arrangement of protein molecules, with their extraction, notations and variables used in the course descriptions. Prediction of protein structures is very important for determining the future function of proteins. Another objective was to create a function in MATLAB that will graphically represent the spatial arrangement of the backbone structure of the protein by form Ramachandran plot. Along with this function create another function to render the side-chains of amino acids and function to calculate the stereochemical quality. Finally, create a program for a complete assessment of the spatial arrangement of the protein molecules and calculating the stereochemical quality of and test program for protein structures from public databases RSCB PDB.
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