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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.
51

Vliv vzduchotechnických zařízení na akustické mikroklima čistých prostorů / The impact of HVAC systems on the acoustic microclimate of clean rooms

Jelínek, Ondřej January 2016 (has links)
The work description is to create a system of measures to prevent the spread and the consequent attenuation of sound in air handling systems serving the cleanrooms. The thesis presents a solution to noise attenuation in the investigated area, and in HVAC duct, which uses a commercially available material in the form of sound insulation hoses. In the systém solution is part of the work focuses on the optimal design of terminal elements to distribute air in a clean room. Processing methods utilize theoretical and experimental approach. The experiment comprises a unique analysis of the sound insulation properties of selected products under specific conditions. The data obtained are analyzed and incorporated into the framework of this work created program module for determining the attenuation and noise propagation in an enclosed space. Math and physical dependence are programmed into their own DLL by programming language DELPHI.
52

Dispenzní tisk tlustovrstvých past / The direct writing of thick film pastes

Ištvánek, Jan January 2010 (has links)
This work deals with the problem of the thick-film pastes and their printing. In the main chapter of this work, the realization of a workplace for thick-film pastes' printing is described. The construction of the realized plotter and the controlling electronics of the plotter is depicted in detail.In the following chapter, the console, through which the plotter is controlled via PC, and the CAD program, which serves for projecting of the motives printed, are described.In the final chapter of this work, the measured profiles of the paste printed for various settings of printing parameters and the photographs of the motives printed are stated.
53

Hotel na Valašsku / Hotel in Wallachia

Šubová, Adriana Unknown Date (has links)
The subject of this diploma thesis is the elaboration of documentation for the construction of a hotel with a restaurant in Rožnov pod Radhoštěm. The building is designed for short-term accommodation of 50 people. The building is functionally divided into a hotel part and a restaurant part. It is a detached object L-shaped building. The building is designed as a classic building with masonry system. The hotel part is designed as a two-storey with masonry system and sloping roof. The restaurant part is designed as a two-storey with basement. This part is also from masonry system and with sloping roof. The building has 22 double rooms, 1 apartment for 4 people and 1 room for people with reduced mobility, restaurant and technical facilities.
54

Možnosti využití vláken na bázi druhotných a snadnoobnovitelných surovin při výrobě pokročilých stavebních materiálů / Possibilities of utilization fiber-based and secondary easy-renewable raw sources in the production of lightweight building materials

Horáková, Lucie January 2018 (has links)
The diploma thesis dealt with the possibilities of of utilization fiber-based and secondary easy-renewable raw sources in the production of lightweight building materials. The theoretical part includes literature search of the researches, which dealt with this issue. Appropriate sources of fibers were selected within the theoretical part and the findings were used in the practical part of the thesis. Within the practical part laboratory measurements and subsequent selection of the most suitable fibers were performed. Laboratory measurements and subsequent selection of the most suitable fibers were performed in the practical part. Subsequently, designs of thermal insulating plasters (with the possibility of using as repairing plasters) were made on the basis of lightweight glass aggregate, to which the production of test specimens was connected. Laboratory tests were performed on fresh and hardened mortars and subsequently evaluated. In conclusion, an economic evaluation and assessment of the competitiveness of the proposed plasters was carried out.
55

Penzion v Beskydech / Pension in Beskydy

Šustek, Václav January 2019 (has links)
This diploma thesis describes the design and elaboration of project documentation for realisation of construction of building of Guest house in municipality Ostravice. The building is situated on parcel 649/13 - arable land, in cadastral area Ostravice-1. Guest house is primarily intended for temporary accommodation of tourists in Beskydy mountains. The part of the building is restaurant as well as wellness centre with fitness gym. The building is situated in partially urbanised section of municipality. The access from the local road to parcel n. 470/20 to the main entrance into building will be enabled by newly purpose-built road with turnaround for passenger vehicles. The design respects the local plan and does not deviate from the character of the surrounding built-up area. The building has three above-ground floors and one underground floor, which is situated only under a part of the building. Project documentation is elaborated in conformity with effective laws, public notices and standards. Building of guesthouse is designed as wall system, with brick supporting walls made out of gas-silicate blocks and sand-lime bricks. The guest house is covered by two flat roofs with different inclination and with different height of ridges. The façade consists of stucco and for the third above-ground floor the façade is made out of ventilated larch-wood panelling. The building is placed in flat terrain.
56

Obchodní galerie / Shopping gallery

Lorenc, Jakub January 2020 (has links)
The subject of this diploma thesis is the design and assessment of main load-bearing elements od the steel structure of shopping gallery in Hodonín. Part of floor plan is rectangular and rest of it is half-circled. Object's dimensions are 7é m x 147,75 m (and roof overhang 1,5 m on each side), the height of the ridge is 13,43 m and the height of the roof's dome is 22,70 m. It's a two-storey building. The load-bearing structure consist of pin-suported columns, in this case there is max. 8,5 m distance between them in direction of main frame. The distance between main frames is 9 m. The spatial rigidity of the structure is ensured with floor slabs and system of bracings. The cladding consists of sandwich panels, roof's fanlights and dome of glazed areas. Most of elements are made of S355 steel.
57

Analýza účinků zkratového proudu v rozváděči / Analysis of effects of short-circuit current in switchgear cabinet

Prokop, Jan January 2015 (has links)
The work is focusing on dynamic effects of short-circuit currents, more precisely dynamic effects of short-circuit currents on switchgear cabinet (terminal box). The work was designated to a concrete construction type of two switchgear cabinets located on rotating machines via company Siemens Electric Machines Drásov s.r.o.. The switchgear cabinets are designed for non-explosive environment where the air is used as an insulating medium. The task was to determine how the device will behave during the three-phase short-circuit and three-phase short-circuit with earth/ground connection. The following programs were used for the calculations and simulations: Ansoft Maxwell 16.0, Ansoft Maxwell 2015 and ANSYS Workbench 16.0. By using these programs the effects of forces which acts on current paths in cabinet caused by the passage of short-circuit current were simulated, statically and also dynamically. Further the effects of pressure acting on cabinet frame during the arc short-circuit have been statically and dynamically simulated. All the results are summarized in the conclusion. Conclusion also contains the final evaluation of the functionality of both switchgear cabinets.
58

Vývoj tepelně izolačních materiálů na bázi přírodních vláken / Development of thermal insulation materials based on natural fibers

Slípková, Andrea January 2013 (has links)
The thesis discusses possibilities of use new thermal insulation materials based on natural renewable resources (primary technical hemp) in development of the new thermal insulation materials. The main task (in the work) is to find modifications of the thermal insulation mats based on natural fibres by chemicals substances to improve the moisture properties, thermal properties and fire resistance.
59

Zděný bytový dům / Masonry Block of Flats

Šotkovský, David January 2013 (has links)
This Master´s thesis is focused on block of flats project documentation, claims for fire safety and thermal and acoustic properties of structures. The brick building is detached and has three floors without basement. These floors are connected by a lift. The block of flats is based on the footings, external walls are insulated by a contact thermal insulation system. The tent roof is consists of truss in two levels. The building is designed for nine flats and one of these flats is wheelchair accessible. Truss design is also a part of the project.
60

Statická analýza stavebních prvků ze skla / Static Analysis of Structural Elements of Glass

Hořký, Radek January 2013 (has links)
They analyzed the various factors affecting the design or evaluation of structural glass. Within evaluation of structural glass element is checked selected concepts of linear elastic fracture mechanics. For modeling is used programme system ANSYS based finite element method. The results are compared with the analytical solution.

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