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Mathematical analysis and simulation of optical fiber transmission parameters
Smrž, Jan ; Šporik, Jan (referee) ; Tejkal, Vladimír (advisor)
This thesis deals with the transmission of optical fibers, their properties and method of calculation. The paper presents different types of fiber types and standards. There is a description of the connection of optical fibers with different methods, including variations joints. Further side effects are broken fibers, dispersion and attenuation. The last part is devoted to describing the program, which was part of this work. The program is used to calculate the transmission parameters of optical fibers and optical losses incurred in connection.
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Group signature schemes
Smrž, Jan ; Dzurenda, Petr (referee) ; Malina, Lukáš (advisor)
Digital signatures are widespread in IT nowadays. In some cases there is emphasized the security of signer identity when signing an electronic message. For this type of signature group digital signatures are suitable. In this thesis basic cryptographic functions are presented which are used for group digital signatures. The principle of group signatures is explained, its advantages and nowadays use. Further are explained electronic election and it dis- and advantages. The practical part is a design and implementation of system suitable for electronic election allowing anonymity of voters using group digital signatures.
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Creating visual components of web using Object Oriented CSS and BEM methodology
SMRŽ, Jan
The aim of this thesis is to use the right approach when writing object-oriented CSS (OOCSS) code in HTML5 and using the methodology of BEM while developing frontend. OOSCC is a way to write easily understandable code which can be used multiple time is simple to manage and does not take much space. BEM methodology gives us an approach that is used to correctly name different blocks, elements or modifiers. Both of them together can be used to simplify writing CSS not only for the person writing it but also for everyone else on the team. In this thesis I will be comparing writing object-oriented CSS, benefits of using BEM methodology and not using either of these approaches. The outcome of this work will be a web presentation consisting of OOCSS with BEM methodology, time consumption, data size and difficulty of development for developers.
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Object in landscape
Smrž, Jan ; Sedlák, Michal (advisor) ; Hůla, Zdenek (referee)
Master thesis Object in the landscape is concerned with the landscape, people's environment, architecture and art. It deals with bases of contemporary urbanized landscape, relationship between man and nature, effect of architecture and art in the wider contexts. It also explores transformation of the entities of the landscape at the time of digital technology. In theoretical, practical and educational level, I deal with relationships among architecture, art, landscape and man in a wider context. In the theoretical part, I examined the spatial relationships in landscape and their transformations. I reflected local environment in practical work and I focused on transferring the issue to stimulating teaching jobs in educational work. In my opinion, the most valuable part is art work, where I managed to meet my expectations and goals.
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Object in landscape
Smrž, Jan ; Sedlák, Michal (advisor) ; Hůla, Zdenek (referee)
Master thesis Object in the landscape is concerned with the landscape, people's environment, architecture and art. It deals with bases of contemporary urbanized landscape, relationship between man and nature, effect of architecture and art in the wider contexts. It also explores transformation of the entities of the landscape at the time of digital technology. In theoretical, practical and educational level, I deal with relationships among architecture, art, landscape and man in a wider context. In the theoretical part, I examined the spatial relationships in landscape and their transformations. I reflected local environment in practical work and I focused on transferring the issue to stimulating teaching jobs in educational work. In my opinion, the most valuable part is art work, where I managed to meet my expectations and goals.
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Mathematical analysis and simulation of optical fiber transmission parameters
Smrž, Jan ; Šporik, Jan (referee) ; Tejkal, Vladimír (advisor)
This thesis deals with the transmission of optical fibers, their properties and method of calculation. The paper presents different types of fiber types and standards. There is a description of the connection of optical fibers with different methods, including variations joints. Further side effects are broken fibers, dispersion and attenuation. The last part is devoted to describing the program, which was part of this work. The program is used to calculate the transmission parameters of optical fibers and optical losses incurred in connection.
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Group signature schemes
Smrž, Jan ; Dzurenda, Petr (referee) ; Malina, Lukáš (advisor)
Digital signatures are widespread in IT nowadays. In some cases there is emphasized the security of signer identity when signing an electronic message. For this type of signature group digital signatures are suitable. In this thesis basic cryptographic functions are presented which are used for group digital signatures. The principle of group signatures is explained, its advantages and nowadays use. Further are explained electronic election and it dis- and advantages. The practical part is a design and implementation of system suitable for electronic election allowing anonymity of voters using group digital signatures.
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Influence of fertilization and frequency of mowing on the stand composition, production and forage quality of grass stand
SMRŽ, Jan
The long-term small plot trial was established at the site in Jevíčko in 2003. Monitoring was realised in years 2006 and 2007. There were used four levels of utilisation (four, three, two and two cuts) and four fertilizer application (zero fertiliser, PK, N90PK, N180PK). The average dry matter production of grassland was 6.99 t ha-1, and it was significantly (P 0.01) reduced when subjected to four and three cut systems compared with a two-cut system. The number of botanical species fluctuated between 17.8 and 27.6. The intensive cutting system significantly (P 0.01) increased CP concentration (from 116.6 to 149.8 g kg-1 DM), CP production (from 787.4 to 951.1 kg ha-1), NEL concentration (from 5.09 to 5.57 MJ kg-1 DM), NEV concentration (from 4.81 to 5.41 MJ kg-1 DM), PDIE concentration (from 75.1 to 83.3 MJ kg-1 DM), and PDIN concentration (from 68.9 to 89.2 MJ kg-1 DM) when compared with the extensive cutting system. The intensive system significantly (P 0.01) decreased the fibre concentration from 292.2 to 234.2 g kg-1 DM. Increasing N fertiliser significantly (P 0.01) increased DM production (from 4.77 to 9.92 t ha-1), CP concentration (from 123.4 to 140.9 g kg-1 DM), CP production (from 545.7 to 1285.4 kg ha-1) and the PDIN concentration (from 68.5 to 83.8 g kg-1 DM) when compared to the control treatment (zero fertiliser).
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