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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Automatizované měření polarizačních vlastností optického svazku / Automated measurement of polarisation properties of an optical beam

Březina, Vojtěch January 2014 (has links)
Diploma thesis deals with polarization properties of an optical beam and the determination of its polarization state by means of the proposed automatic measurement method. Furthermore the influence of an environment on the polarization state of the optical wave is studied. At the beginning of this thesis the fundamental terms with respect to the wave polarization including the description of the polarization devices are presented. In conclusion a method for an automated experimental workplace for the measurement of the polarization properties using Poincare sphere and Stokes parameters is designed and verified.
2

O kouli / On sphere

Ivan, Matúš January 2014 (has links)
This diploma thesis describes historical evolution of calculation of sphere's volume and surface and provides an analysis of textbooks for secondary and primary schools. It is made with the intention to inspire high school teachers with various approaches of teaching the volume and surface of solid bodies. It can help teachers with motivation of students as well as with selection of textbook and teaching methods for the issue. This thesis is meant to inspire high school students interested in history of mathematics, too. It includes analysis of preserved exercises on the topic from ancient Egypt and Mesopotamia as well as findings from Archimedes' works, which were devoted to this topic. Moreover it describes contribution of enlighteners on the subject and shows exact procedures of derivation of formulas using integral calculus.
3

Návrh optovláknového tepelného senzoru pro detekce narušení obranného perimetru / Design of optical fiber temperature sensor for detection of defense perimeter

Zámečník, Ondřej January 2021 (has links)
This diploma thesis deals with the issue of measuring the ambient temperature using a~single-mode optical fiber used as a temperature sensor. The thesis describes the basic knowledge about polarized light, its propagation in optical fiber and describes special fibers that preserve polarization. It also deals with the representation of polarization states on a Poincaré sphere and the use of Stokes and Jones vectors. In the practical part, several selected methods of optical signal supply to the temperature sensor are measured. Subsequently, the suitability of the given methods is evaluated from the measured results and the courses are compared with the records measured from real routes. This thesis aims to select a suitable connection of a temperature sensor for a long route of optical fiber and verify its functionality.
4

Animovaný 3D model / Animated 3D Model

Konečný, Kamil January 2016 (has links)
This  thesis  deals  with  production  of  three-dimensional  animated  model. Thesis is about model of billiard table and visualization of balls motion on its surface. Using simulation methods to solve the problem of balls motion is the goal of this work. This thesis contains summary of physical phenomena which describe the ball motion. There are also animation and simulation techniques which are used to create a model involved in this work. This thesis also deals with description of software, which can be used to create a three-dimensional model, animation and define user interaction. The second part of thesis describes how simulation program and visualization application was made. In the end, there are charts which describe ball behaviour involved in this work.
5

Generátor herní mapy galaxie / Galaxy Generator for Games

Březina, Karel January 2018 (has links)
This thesis is focused on design and implementation of procedural generator of galaxy for games or simulations. Second goal is implementation of demonstration application which is showing possible usage of generator. Generator is able to create galaxy by predefined types or by user created map.
6

Měření tolerančního pole a vlivu dvojlomu na činnost polarizačního multiplexu / Tolerance zone and birefrigence influnce measurement on polarization multiplex

Štohl, Jakub January 2019 (has links)
The thesis deals with the measurement of tolerance zone and the influence of birefringence on the activity of polarization multiplex. The theoretical part deals with polarization of light, mathematical description using Stokes and Jones vectors and its representation by Poincaré sphere. It also deals with optical transmission and channel merging. The final part describes the designed measuring workplace and the measurement itself.
7

Interaktivní vyhodnocení aktuálního herního stavu biliardu / Interactive evaluation of current biliard situation during game

Sedlařík, Jan January 2011 (has links)
The aim of this master’s thesis is evaluation of images by computer vision methods. The elaborated scene is billiard game scanned by camera. Using pre-processing, image segmentation and object classification we will try to understand the gameplay situation and uvaluate it in accordance with applicable rules.
8

Využití optického vlákna jako senzoru pro měření teploty / Use of optical fiber as a temperature sensor

Procházka, Jakub January 2016 (has links)
This diploma thesis is focused on use of polarization mode dispersion for measurement of temperature. It also deals with representation of polarization mode dispersion in Poincaré sphere and a mathematical description of polarization mode dispersion by using Stokes and Jones vectors. Here are described basic alternatives of settings, selected temperature relationships and dependence and relationship between coherency and polarization. The practical portion of the diploma thesis examines behavior of the temperature sensor at different temperatures for wavelength 1550 nm and 633 nm.
9

Realizace vysokorychlostního přenosového kanálu s využitím polarizačních rovin šíření světla / Transmission Broadband Channel Implementation Using Light Propagation Polarization Axes

Mafka, Martin January 2017 (has links)
The aim of this master’s thesis is to analyze ways of propagation light in optical fiber with two polarization planes. Theoretical part is focused to to the issue of polarized light, its mathematical description using Stokes and Jones vectors, the state of polarization on Poincare sphere and polarization multiplex. In the practicle part are first measured several laboratory measurements to verify the theoretical assumptions from the previous chapters. At the end of the thesis was constructed a functional polarization multiplex for wavelength 1550 nm.
10

Queer geografie Česka: Heteronormativita prostoru / Queer geography of Czechia: Heteronormativity of space

Pitoňák, Michal January 2011 (has links)
Drawing on rigorous foreign, both Western and non-Western, literature, this thesis introduces sexuality and its connected spatial conceptualizations to Czech geography. In the beginning of the theoretical part, I discuss the framework under which geography studies sexuality. Then, I discuss the crucial terminology while pointing out at some changes in it. After understanding some of the major terminological issues, I delve into a description of the multiple and diverse development of sexuality related geographies. Focusing on queer geography, I delineate the queer standpoint and concentrate on understanding the spatial construction of sexuality in space while unveiling the heteronormativity of space. Using the queer approach, I implicitly deconstruct the binary of public and private space by pointing out at its spuriousness regarding the sexuality. I present a queer bar as a typical queer space while revealing the sexual closetedness of LGBTIQ people. Then I introduce the school environment as, for the time being, a typical heteronormative space and institution. In the end of the theoretical part, I discuss the queer practices of destabilizing heteronormativity both at school and in public space. In the empirical part of the thesis, I discuss the methodology of my internet based chain-referral...

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