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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

Jezero pod Petrovem - architektonicko urbanistická studie dostavby prostoru v cípu ulic Biskupská a Petrov s vazbou na brněnské podzemí / Lake under Petrov - architectural and urban development of a space at the corner of streets "Biskupská" and "Petrov" (in a relation to the underground of Brno)

Zdražilová, Jana January 2012 (has links)
Solution idea Petrov is stoney bill in south-west part of Brno. You can find magnificent cellar on given land that is probably medieval and is partially carved in rock. Designed building follows up this rock developing to surface, where crystalizes and gradually grows and expands towards from „Šilingrovo náměstí“ to St. Petr and Pavel’s cathedral. Water is the other element – it wells from mouldering diabas rock to surface, thanks to cracked springs that can be found here. That creates a lake beneath Petrov. Water theme is projected to building interiors. This construction is characterised by great views, which are possible because of unique location of the site and the building itself is designed to use the most of them. From terrace, caffeteria and also multipurpose hall can anyone view cathedral, Zelný trh square and Parnas fountain. Function locations 1) Interest-activities more people more life. There used to be one of the oldest schools in Brno from half of 14th century. And because of that, although in modified form, I wanted to preserve this function of the place. I designed one classroom and a multipurpose hall, that can be used e.g. for dance lessons or - in a daytime, when there be no usage for the hall - for rentals for commercial purposes. 2) The entrance to medieval cellar carved into rock, that is under the site. There are two functional water wells, that constantly floods the cellar space. Water will be pumped out to terrace, where it will make a small lake. The whole space will function as a small gallery. 3) Caffeteria and sweetshop are located on very attractive place with spectacular views. Adjoining terrace will serve as summer garden that can be used by public all year round.
2

Diagnostika impulzů Ti:Sa laseru pro generaci plazmatu / Diagnostics of Ti:Sa laser pulses for plasma generation

Weiss, Jiří January 2015 (has links)
This diploma thesis is focused on investigation of temporal characteristics of laser pulses generated by oscillator with Ti:Sapphire active laser medium. In terms of properties of laserinduced plasmas the beam quality is crucial, in particular laser pulse contrast ratio. A new prototype of third order autocorrelator was designed. Pulse contrast ratio measurement is based on sum frequency generation between pulse of fundamental wavelength and its frequency doubled replica. Dynamic range of presented autocorrelator is estimated to be up to 8×10^12 which is more than currently available commercial devices can offer.
3

Sběratel krystalů / The Crystal Collector

Klicnarová, Dita Unknown Date (has links)
This dissertation entitled Crystals Collector is concerned with the phenomenon of collecting, and more specifically with crystals as objectes in an imaginary collection. The objects are selected based on a personal fascination of the author. However, the collection always has, similarly as a crystal, a predetermined internal structure. The meaning of individual parts only become apparent when they are viewed as a whole. The main artefacts of the collection are paintings on canvas - with the painting becoming a similar 'fetish' as a collected crystal. Mineral it the key artefact and as such it is subjected to deeper examination (experiments with growth of crystals, studies of crystals, artefacts having a close relationship to crystals...).
4

Strukturní analýza molekulárních krystalů / Structure analysis of molecular crystals

Janíček, Jakub January 2019 (has links)
Summary: Diploma thesis covers characterization of molecular crystals by X-ray structural analysis. N-carbamimidazoylisonikotinamid and 1-phenylguanidin were chosen, because their potential use in second harmony generation. Their salts with inorganic acids were prepared and determined their structures. Phase transition of 4,6-diaminopyrimidinium nitrate was studied by x-ray diffraction and differential scanning calorimetry. This phase transition is accompanied by thermosalient effect, causing that the crystals jump. Keywords: thermosalient, jumping crystal, X-ray diffraction, non-linear optics, N-carbamimidazoylnikotinamid, 1-phenylguanidin, 4,6diaminopyrmidin.
5

Fotonická krystalická vlákna / Photonic crystal fibers

Dočkal, Martin January 2011 (has links)
This graduation thesis deals with use of unconventional optical fiber with the intention of photonic crystal fiber. There are described types of photonic crystal fiber, their physical, optical and transfer characteristics. There is explained what are the photonic crystals, principle of their function and possible types of crystals. There are also detailed types of photonic fiber commonly used in the optical fiber branch. There is also explained photonic crystal fiber its structure a hierarchy of its types. In this thesis are described and demonstrated different kinds of photonic optical fiber and their use. There is demonstrated principle of one-dimensional periodical structure of Bragg fiber using simulation software. There can be seen graphical comparison of the simulated optical fiber core to commonly obtainable fiber. Outcome of this graduation thesis should be explanation of function of photonic crystal fiber and possibility of finding new type of fiber with optimal dispersion characteristics for use in fiber optics.
6

FDTD simulace funčkních fotonických struktur / FDTD simulace funčkních fotonických struktur

Novák, Ondřej January 2021 (has links)
This thesis aims to (i) design and optimize the geometry of magneto-photonic crystal based on ferromagnetic garnet in order to resonantly enhance the magneto-optical re- sponse, (ii) to explore the possibility of using magnetic shape memory alloy to build an optically active photonic element, using advanced FDTD modeling. A Faraday rotation of 180◦ was reached but with low values of transmissivity. An investigation of the origin of such high values of Faraday rotation led to a conclusion that such structure has to be highly sensitive towards a change of a refractive index of its surroundings. This was confirmed, and so further development of this structure can lead to an efficient concentra- tion detector. Three designs of optically active element utilizing deformation of magnetic shape memory material in the external magnetic field were numerically simulated. Two designs (photonic crystal with cylindric holes in a hexagonal lattice and self-standing foil with cylindric holes in a square lattice) proved to be efficient and worth of further development. 1
7

Příprava a testování SNOM sond speciálních vlastností / Preparation and testing of SNOM probes

Bobek, Juraj January 2019 (has links)
Fotonická krystalická vlákna (PCF) představují slibný nástroj pro spojení technik známých z mikroskopie rastrovací sondou, elektronové mikroskopie a systémů pro vstřikování plynu. Přivedení světla a přenos pracovního plynu současně do blízkosti vzorku umístěného uvnitř elektronového mikroskopu přináší nové možnosti experimentů. PCF by mohly být použity nejen k charakterizaci nebo modifikaci struktur na mikroskopické úrovni, ale také k jejich výrobě. Tato práce se zabývá výzkumem literárních zdrojů s tématikou fotonických krystalů s důrazem na PCF. Leptání PCF pomocí kyseliny fluorovodíkové bez poškození jejich vnitřní struktury je experimentálně studováno s velkou precizností. Optické vlastnosti závislé na geometrii PCF jsou testovány pro různé modifikace PCF. Dále se práce zabývá spojením PCF s mikroskopií atomárních sil a následnou integrací do elektronového mikroskopu.
8

Nová synagoga Trutnov / New synagogue in Trutnov

Vašička, Jakub January 2020 (has links)
Diploma thesis theme is design of a new synagogue in the city of Trutnov on a memorial site of the original unpreserved synagogue. Part of the construction program is the creation of a complex used by the Jewish religious community and its members, containing a building for the Jewish community (administrative and educational use), kosher restaurants with use for the general public, and the Museum of Jewish Culture. The aim of the design is to create a set of buildings functioning as a whole respecting the natural landmark of the surroundings and the historical significance referring to the past. The new synagogue is designed as the dominant feature of the whole complex in the place of the original Jewish prayer house and emphasizes the monumentality of the place connected with nature. Other facilities are located in front of the synagogue and create a new public space for locals but also visitors to the city from a wide area not only for spiritual use but also for cultural, social, and recreational.
9

Hudba jako veřejný prostor – Nový koncept brněnské Filharmonie / Music as a public space - New concept of Brno Philharmonic

Kříž, Jan Unknown Date (has links)
Proposal for concert hall in the position of the Moravian Square, where in 1945 found called. The German House with a concert hall. Design a simple, rectangular mass with celoprsklenuo, perforated facade. Inside the hall layout, as a cornerstone of the entire draft, in ideal acoustic proportions, visibility, access to the hall, both with regard to the audience and the performers. The construction includes all the facilities and plants for the Philharmonic commensurate with the contemporary world architecture. It is offering a location opposite the street Veselá.
10

Modul pro verifikaci rotačních pozičních senzorů / Module for verification of rotational position sensors

Krolák, David January 2016 (has links)
This master‘s thesis deals with design and realisation of a control module for automated measurements of the modern contactless inductive position sensors by a mechanical rotational system consisting of a DC motor and an incremental quadrature encoder. The thesis presents methods of driving DC motor and recording of measured data by a microcontroller. The thesis presents a communication protocol between the control module and personal computer via USB interface. A part of this thesis is also to develop a control software and firmware, including the measurement and evaluation of properties of the control module.

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