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Slovene National Theatre in Ljubljana
Semela, Ladislav ; Borák, Martin (referee) ; Ruller, Ivan (advisor)
The design of the new stage of the Slovene National Theatre in Ljubljana adheres to, among other things, the motto of the “TACE” (Theatre Architecture in Central Europe) project, i.e. a search of forms and types of buildings for the "New Theatre for the 21st Century". Therefore, I confront three topics: 1/ the conventional binocular conception for the drama chorus of the National Theatre, 2/ the unconventional solution of the "TACE" and 3/ the urban conception of the location, the so-called "Southern Square", designed by Josip Plečnik. Ad1/ The serious and classical feeling of the conventional form of the theatre hall is required, for this is the National Theatre. Slovenia, as a relatively young state, strives to build and strengthen its historical and national existence; therefore, the classical conception should be preferred because most plays dealing with the national identity are written for this type of theatre. Unlike the unconventional type of “performance” theatres that tend to present international rather than national art. Ad 2/ The search for spatial forms of unconventional and interactive staging of traditional types, such as ballet, opera, musical or drama as well as new forms such as “performance” resulted in a clear conclusion - “black box”. The ideal theatre of the future is infinitely multifunctional neutral space equipped with technologies that enable using the area for virtually any purpose. The principle comes very close to that of film studios, yet equipped with theatrical and other technologies. Ad 3/ A controversial location in the centre of Ljubljana, which has been waiting for an urban conception since the 1930s. It is situated at the end of Plečnik’s “Ljubljana diameter”, with the obelisk in the French Revolution Square as the opposite pole. The unfinished axis obelisk-square-theatre is quite apparent. The location features a clearance and an inner block with a poor urban development; yet it also features the so-called Knafijev prehod, a socially well functional part. The building is divided into 2 functional units - the theatre with its halls, lounge, gallery and cafe, and a commercial passage with the theatre’s administration. The facade of the theatre is a composite of several elements: From left, a decoration consisting of a ruptured pillar with a statue of an actor with a background of the fly, as we move to the right, a “curtain” going down in a curve from a glass “heaven” of the theatre’s hall towering over the passage, out of which rises the solid pylon of the gallery made of half-transparent material LitraConTM. This composition shifts the axis of the lounge beyond the axis of the park to the axis of the diameter and makes thus room for service access. The theatre’s area with the passage beneath is linked by a number of newels which can spin and thus close and in this way enable changing the mode of the passage from a lounge to a public area. The conception of the theatre's area combines sections 1/ and 2/ mentioned above. It consists of the classical stage with a trap cellar, portal and fly, which can be used a classical opera-glasses theatre for as many as 800 persons in the audience and/or, if the iron curtain is closed, as a small scene with approximately 100 seats. The remaining area functions as experimental and consists of a revolving auditorium and 4 stages whose back walls feature panorama windows.
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Defect detection on fiber materials using machine learning
Lang, Matěj ; Richter, Miloslav (referee) ; Honec, Peter (advisor)
Cílem této diplomové práce je automatizace detekce vad ve vláknitých materiálech. Firma SILON se již přes padesát let zabývá výrobou jemné vaty z recyklovaných PET lahví. Tato vata se následně používá ve stavebnictví, automobilovém průmyslu, ale nejčastěji v dámských hygienických potřebách a dětských plenách. Cílem firmy je produkovat co nejkvalitnější výrobek a proto je každá dávka testována v laboratoři s několika přísnými kritérii. Jednám z testů je i množství vadných vláken, jako jsou zacuchané smotky vláken, nebo nevydloužená vlákna, která jsou tvrdá a snadno se lámou. Navrhovaný systém sestává ze snímací lavice fungující jako scanner, která nasnímá vzorek vláken, který byl vložen mezi dvě skleněné desky. Byla provedena série testů s různým osvětlením, která ověřovala vlastnosti Rhodaminu, který se používá právě na rozlišení defektů od ostatních vláken. Tyto defekty mají zpravidla jinou molekulární strukturu, na kterou se barvivo chytá lépe. Protože je Rhodamin fluorescenční barvivo, je možné ho například pod UV světlem snáze rozeznat. Tento postup je využíván při manuální detekci. Při snímání kamerou je možno si vypomoci filtrem na kameře, který odfiltruje excitační světlo a propustí pouze světlo vyzářené Rhodaminem. Součástí výroby skeneru byla i tvorba ovládacího programu. Byla vytvořena vlastní knihovna pro ovládání motoru a byla upravena knihovna pro kameru. Oba systém pak bylo možno ovládat pomocí jednotného GUI, které zajišťovalo pořizování snímku celé desky. Pomocí skeneru byla nasnímána řada snímků, které bylo třeba anotovat, aby bylo možné naučit počítač rozlišovat defekty. Anotace proběhla na pixelové úrovni; každý defekt byl označen v grafickém editoru ve speciální vrstvě. Pro rozlišování byla použita umělá neuronová síť, která funguje na principu konvolucí. Tento typ sítě je navíc plně konvoluční, takže výstupem sítě je obraz, který by měl označit na tom původním vadné pixely. Výsledky naučené sítě jsou v práci prezentovány a diskutovány. Síť byla schopna se naučit rozeznávat většinu defektů a spolehlivě je umí rozeznat a segmentovat. Potíže má v současné době s detekcí rozmazaných defektů na krajích zorného pole a s defekty, jejichž hranice není tolik zřetelná na vstupních obrazech. Nutno zmínit, že zákazník má zájem o kompletní řešení scanneru i s detekčním softwarem a vývoj tohoto zařízení bude pokračovat i po závěru této diplomové práce.
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Polygonal Mesh Segmentation
Švancár, Matúš ; Kodym, Oldřich (referee) ; Španěl, Michal (advisor)
This bachelor thesis analyzes and approaches the issue of segmentation of polygonal models. It presents a design of an interactive method inspired by the method described in the Interactive Mesh Segmentation Based on Feature Preserving Harmonic Field. The method uses graph-cut and is implemented as a web application. The application supports .obj and .stl file formats, allows the user to load a model, draw sketches representing foreground and background on the surface of the model, and to start segmentation. Once completed, the user can download the resulting models or continue segmenting with one of them.
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Design parameters of filtration materials for small constructed wetlands
Fialová, Tereza ; Rozkošný,, Miloš (referee) ; Kriška-Dunajský, Michal (advisor)
Constructed wetlands and the soil filters are water treatment devices using the filter material that in most cases consists of natural river gravel, coarse sand or crushed stone. This thesis deals with the research of unconventional filtration materials, or more precisely with examination of their ability to be used as an alternative medium that can ensure better cleaning effect. For the research work following metallurgical industry materials were used: slag, waste from cipres filter, waste from the molding mixture, waste from large blasters and small blasters, sand filter material ČEZ, the coarse crushed slag 8-16 mm and as the last alternative medium ground coffee beans. Both the hydraulic and the chemical aspect of all above mentioned materials were tested (except of the last mentioned). The examined hydraulic parameters are particularly porosity, hydraulic conductivity, bulk density, particle density, chemical composition and concentration of chemical extracts. By evaluating the results of the measurements it is determined which materials are suitable to be applied in the constructed wetlands and the soil filters. In future the testing will continue under real operating conditions in the constructed wetland, where particular column filtration units (selected according to results of previous measurement) will treat real sewage water.
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VHF/UHF Front-End for Software Receiver
Losenický, Roman ; Vágner, Petr (referee) ; Šebesta, Jiří (advisor)
The first part of this work contains the detailed analysis of the basic VHF and UHF receiver characteristics. The most important parameters, like Noise figure, selection or gain, are qualified shortly. The following chapter analyzes above-mentioned parameters and shows some calculations and analysis to design a receiver. In the third part the receiver design is proceed. It specifies a basic block diagram. The base of design is formed by a mixer SRA-1+, which choice is not part of this project. Design of preselectors is the main goal of the project. They use BF998 FET transistors and band pass filters determining three frequency bands: 140-145 MHz, 220-230 MHz and 420-430 MHz. Filtered signals go on into the channel selector afterwards. The user can determine , which one of the three input signals will be routed to the mixer, using a switching diode HSMP3823. Each part, including preselector amplifier and filters, is placed into the separated tinned boxes. These boxes are linked with the switching circuit by the coaxial line.
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Managerial Accounting as a Tool for Construction Company Risk Management
Paštěka, Petr ; Aigel, Petr (referee) ; Vítková, Eva (advisor)
The theoretical part of this master thesis is focused on description and characteristics of the management accounting, the description of erection log book, and types of risks, which influence the company itself and possibilities for their identification, evaluation and control. I also pay attention to financial analysis area of company operating in civil engineering. The goal of the practical part of this thesis, the impacts of risk are pointed out without taking measures, the second part describes the implementation of arrangements to reduce the risk effecting the company. The measures are adjusted in the way of company´s capability to continue in the production activity. For the comparison of particular models, the parts of financial analysis - namely company´s liquidity indicators, were used.
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Optimalization of parts bonded by hot crimping
Liškář, Ladislav ; Řiháček, Jan (referee) ; Lidmila, Zdeněk (advisor)
The thesis describes the procedure for verifying the conceptual ideas of the company. Design and production of prototypes, testing and evaluation, quantifying savings. Two variants of crimped bond were chosen. For each was length of shaft changed to three and four crimped grooves. These prototypes were tested in two static and one dynamic tests. Recommendation for company is continue with other phases of development for shaft with four grooves.
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Experimental evaluation of appropriate FDM technology for UAV production
Hubáček, Jan ; Klement, Josef (referee) ; Dvořák, Petr (advisor)
This bachelor thesis deals with material analysis and design of technology for Fused Deposition modelling 3D printing method of unmanned aerial vehicles. Nine materials which are suitable for this application has been tested. Tension test has been used to determine mechanical properties of each material according ISO standards for plastics. Material had to met certain criteria, which are important for 3D print of aeroplanes, to pass to the next stage of experiment. Next three-point flexural test of wing has been used. In this test has been tested two glued sections of wing root and one separate section of wing. Results of tensile test and flexural test were compared and evaluated. It was discovered that material PLA, which is commonly used for printing aeroplanes, has not been overcome. Materials that seems to have better mechanical properties has been disadvantaged for its bad properties in 3D printing process.
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Belgrade - Danube - Sava
Nováková, Michaela ; Bahna, Ján Miloslav (referee) ; Mléčka, Jan (advisor)
Diploma project_ Belgrade_ Danube_ Sava As the theme of my thesis I chose the city of Belgrade in the magic we see everyday. An interesting feature is its strategic location at the confluence of the rivers Danube and Sava. The project first deals with research in a broader context. It focuses not only on Belgrade,but also the whole Serbia and its ethnic and religious diversity, the Balkan temper of the population. Survey maps on one side of the city, its beauty and challenges, on the other hand, thesociological context, which examines the main problems of the population of the former Yugoslavia, their mutual coexistence and conflict.. Stigma of the City The work sets in five most problematic points that directly affect the river basins. These problems selecting a continuous strip length of 10 kilometers. Urban areas have a water factor and the city, which is reflected in the grid of streets. Cross streets are straight line to the city, continuing today boulevards that leads to the Danube. Longitudinal its streets and roads follow the river undulation. Based on the original idea of creating islands of the other two islands which make their way onto the side of the Danube three cities waterfront. We get water in the city, which is not only artificial reservoirs, but water in its nature and dynamics. Most exposed parts of the scarred area, the left bank of the Marina Luka which leads to the Francouzská boulevard linking the main square to the Danube. In this area has focused more specifically in connection with the sociological survey. Stigma of the Nation Due to the fact that Belgrade was the capital of Yugoslavia, I focused on interpersonal and economic problems of the population of the former Yugoslavia and its dissolution. On the outside Yugoslavia was united in its time in terms of a strong state economy. After the disintegration of countries to stop cooperating and their economy has significantly dropped. Interpersonal ethnic hatred grew in mutual exploitation of minorities, whether ethnic, and religious. The hatred and conflict in humans are deep and mutual grievances will be difficult to erase. Stigma of the City + Stigma of the Nation = Peace Center Thus we come to the junction of scar and the scars of a nation and a way to deal with both. In a significant proportion of exposed and Belgrade should be the function that has a deeper meaning, overlap, and the importance for the nation, the whole Balkan peninsula. Shaping a platform for peaceful dialogue and mutual cooperation of the former states of Yugoslavia at all levels. Building project will be a peace organization, which will fill this space understanding, cooperation and reconciliation, heal the stigma of a nation and city. The Centre is engaged in projects in the economic, social, medical, religious and cultural. A strong element is the continued ramp-boulevard of the Danube, which shows that the path to the goal may have obstacles and the goal is far off, but worth it to continue. Torn heart_ Peace Center building_ Culture_ media_ Arts As Yugoslavia disintegrated in the Yugonostalgi a back to each other, and the design of the building is torn heart of Yugoslavia, which on itself can not completely back, so at least communicate through the atrium, but are otherwise separate entities.
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