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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.
11

Návrh osvětlení železniční stanice / Design of railway station lighting

Hána, František January 2018 (has links)
The thesis pursue the design and calculation of illumination at Šternberk railway station. Components of this thesis are sizing and securing of supply cables, design and documentation of NN cable trains, comparison of current and proposed status in terms of energetical intensity, list of sampled work and financial costs of implementation.
12

Fotorealistické zobrazování metodou "Photon Mapping" / Photorealistic Rendering Using "Photon Mapping" Method

Lysek, Tomáš January 2015 (has links)
This master thesis focuses on photon mapping rendering technique. A simple photon mapping was implemented as a baseline and then progressive photon mapping was prepared for CPU and GPU. After implementing progressive photon mapping on GPU, further acceleration techniques were proposed. Finally, in the thesis, genetic clustering algorithm for suitable clusters on GPU was proposed.
13

Návrh rodinného domu s komerčním prostorem

Veškrňa, Adam January 2018 (has links)
Diploma thesis devotes to design of detached house with a commercial space, made for business. Living area is solved as single-family house, for four, five-member family. Integral part of thesis is a design documentation consisting of drawings and text part, which is devoting to individual structural properties, technical amenities, energy performance certificate with a thermal assessment of structural design. Specialization of thesis is the daylighting, sunlight and insolation study of designed house and surrounding buildings.
14

Osvětlení s proměnným spektrálním složením a jeho vliv na fyziologické funkce člověka / Lighting with Tunable Spectral Distribution and Its Influence on Human Physiological Functions

Hanák, Petr January 2020 (has links)
In this diplomat theses are considered the effects of light on human beings, especially on physical performance. The goal of this work was to design a suitable method for evaluation of the effects of light on physical performance. Furthermore, to verify designed methods in laboratory environment and the assessment of collected data. After creating this method several people were tested under different light conditions and collected date evaluated. The results are suggesting that high intensity lighting with low wave lengths leads to an increase of physiological activity in organism and therefore to a potential decreasing physical performance.
15

Mapa osvětlení v GIS / Map of lighting in GIS

Suchý, Petr January 2011 (has links)
This thesis deals with legislation and public lighting. Furthermore, this topic is closely related to describing the characteristics of lighting and hygiene levels in comparison with the IEC standards. The work focuses on theoretical training, follow-field measurement and analysis of data obtained. The paper discussed aspects related to the light, physiology of vision and optical comfort. Outdoor lighting and its technical characteristics. Brief description of standards and their use in planning practical measurement of public lighting. A substantial part of the work is focused on graphical analysis of values and their comparison with the standard.
16

Interiérový set svítidel / Interior Lamps Set

Kaminský, Václav Unknown Date (has links)
The interior light with the changable color temperature, which can react to various daytime and also react to requirements of the customer. This feature is possible by LED technology. The shape of the light comes from undersea inspiration. The light wants to remain to the man his natural environment. And also respect his lighting needs. The light would be made from the segments which are possible to adapt in any interior by size. And also with more segments we can get more light intensity.
17

Osvětlování s ohledem na biologické funkce / Illumination with respect to biological functions

Němec, Jiří January 2018 (has links)
The paper summarizes the basic light-technical parameters, the principles of visual and non-visual photoreceptions and the effects of light on the organism. Several chapters focus on the mechanism by which light affects hormone levels and the circadian rhytm of the organism. In relation to the lighting system, the impact of electromagnetic radiation, associated with the controls, on the body is also considered. Briefly described are systems based on smart LED light sources or smart switches. The result of the thesis is to choose the solution that best suits the requirements of the contracting authority.
18

Programovatelná osvětlovací soustava pro optický mikroskop / Programmable illuminating system for an optical microscope

Lošťák, Martin January 2008 (has links)
A programmable illuminating system (PIS) uses a commercial multimedia projector together with a suitable optical relay system in order to illuminate specimens under microscope with transmitted light. The theoretical part of the diploma thesis describes some methods used in the optical transmission microscopy. All of these methods employ physical masks placed in the condenser front focal plane. In the case of the traditional methods the masks are used to enhance contrast (e.g. dark-field illumination) and resolution (oblique illumination). One of the methods (a condenser with rotating aperture) provides the information about the three-dimensionality of the specimen. The next part of the thesis contains the theory and the basic classification of the illuminating systems used in the optical transmission microscopy. An optical and mechanical design of the optical relay system used for PIS is introduced. The experimental part shows the results made with two different PIS arrangements. It was shown on two different specimens that the PIS provides the same illumination as the classical methods. It was also proved that the PIS can simulate the rotating aperture in the condenser front focal plane and thus to give the information about the three-dimensionality of the specimen. Some new static and dynamic illuminating methods were introduced.
19

Koncept moderního LED svítidla pro osvětlení pozemních komunikací / Modern LED luminaire concept for road lighting

Krejčí, Miroslav January 2018 (has links)
This thesis deals with design of optical system for road lighting luminaire. In the beginning the basic photometric quantities and assessment methodology for requirements of lighting class M are described. The next step is the programming of algorithm which evaluates the road lighting requirements using few boundary conditions. The input of the algorithm is also luminous intensity (power emitted in a particular direction). By the turning the algorithm over, it is possible to evaluate the luminous intensity from the road lighting requirements. Those luminous intensities are used in the process of modification of optical lens. The ray tracing of modified models of lenses was performed to obtain the tables of luminous intensity. The values of luminous intensity are verified in the same algorithm. Finally, the comparison of results was made including several luminaires out there.
20

Využití dutých světlovodů pro osvětlování / Use of Hollow Light Guides for Illumination

Zajíček, Josef January 2012 (has links)
This master’s thesis describes the using of hollow light guides for inner-space lightning. The project describes the legislation requirements for the inner-space day lightning. The usages of hollow light guides are also discussed. Other goal of the project is to describe computer programs, which are modeling the function of hollow light guides. The practical part of the thesis is describing the process and the results of the measuring, which was done on a model of a family house with hollow light guides.

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