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The radio therapy process planning
Slavíček, Tomáš ; Kolářová, Jana (referee) ; Hrozek, Jan (advisor)
This thesis aims to bring reader to the problems of radiotherapy, to give him an overview of basic principles and methods used to treat patients with cancer by ionizing radiation. The first part is devoted to the physical description of radiation and means of quantification. Interactions of radiation with matter are discussed next following with characterization of radiation effects on living cells and tissues. In the next part there is a description of the devices used in the treatment by ionizing radiation and an explanation of the various acts of patient's preparation from the target localization to irradiation. The final chapter describes created program with a graphical environment, which includes the key elements of commercial planning systems for the creation of the irradiation plan. This program uses real CT images and provides the user a basic idea of creating radiotherapeutic plan. The user has several functions for creating and optimizing the plan. The output of the program is a graphical representation of the spatial distribution of dose in the patient's body.
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Data processing in real-time fMRI neurofeedback
Bečička, Martin ; Slavíček, Tomáš (referee) ; Lamoš, Martin (advisor)
Tato práce se zabývá digitálním filtrováním dat získaných z fMRI neurofeedbacku v reálném čase. Práce analyzuje dosavadní řešení používané v CEITEC MU, se zaměřením na zkrácení prodlení na začátku každého neurofeedback bloku, které je způsobeno digitálním filtrováním. Dosavadní řešení používá, hlavně pro jeho online a vyhlazovací vlastnosti, nelineární Kalmánův filtr. Analýzou 150 průběhu fMRI neurofeedback sezení byla zjištěna dolní hranice, kterou nelineární Kalmánův filtr potřebuje k naučení. Počet potřebných vzorků je významně menši než je nastaveno v dosavadním řešení. Další možnosti zkrácení prodlení byly prozkoumány a klouzavý průměrovací filtr byl vybrán jako optimální kompromis mezi dobou prodlení, zpoždění filtru a jeho vyhlazovacími vlastnostmi.
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Analyse and Design of Information System to Register and Controlling of Orders
Kintr, Lukáš ; Slavíček, Tomáš (referee) ; Dydowicz, Petr (advisor)
The main content of this thesis is a brief analysis of the current state of all information systems in the advertising company Farao Ltd., thorough analysis of the IS in the area of register and controlling of orders. Based on these analyzes are presented possible solutions to the current situation, including the analytical solution of the creation a system right to the needs of the company and its subsequent implementation. Another important chapter is the evaluation and selection of an optimal solution that takes into accounts both functional (technical) aspect, and economic efficiency of invested money.
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Power flash battery unit for a photo
Slavíček, Tomáš ; Zeman, Václav (referee) ; Pavelka, Ondřej (advisor)
In the bachelor thesis deals with the draft of the flash unit to take photos with a maximum output of 400Ws. Draft flash unit includes regulation of maximum output power up to 12.5 Ws. The flash unit is powered from the battery. Bachelor thesis includes a charging circuit. As the lamp using the lamp IFK - 120 with a maximum output of 120Ws. For maximum performance is parallel connection of four of these lamps.
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Optimization of access networks for multimedia services
Slavíček, Tomáš ; Reichert, Pavel (referee) ; Šporik, Jan (advisor)
This thesis describes the problems of access networks and their existing types. It discusses the important parameters for multimedia services. It considers the possibility of using various networks at the localities. It presents modern multimedia services and their requirements for access networks. Next step describes the possible use of QoS to optimize access networks used for multimedia services. Multimedia services to different types of networks and limits which these types of networks have, are simulated in the program Opnet Modeler. Measurements of values important for securing quality of services are implemented at selected real access networks. In conclusion, the results of simulations and measurements are subjected to comparative analysis.
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Software for patients and brain regions selection suitable for analysis of connectivity in fMRI
Slavíček, Tomáš ; Lamoš, Martin (referee) ; Jan, Jiří (advisor)
The aim of this thesis is to create an exploratory tool for functional magnetic resonance imaging data, which allows quickly and easily making a selection of persons and areas suitable for group analysis of connectivity. In the first chapters of this work is mentioned history of brain research and comparison of methods used in functional imaging. Next they are discussed the theoretical basis of fMRI methods, such as the formation of BOLD signal, acquisition parameters of MRI images and methods for designing experiments. The following chapter describes in detail the analysis of recorded data from the pre-processing to the interpretation of results. The last chapter of the first part describes problems of group analysis in SPM8 software. The second half of this work is dedicated to the description of developed program from data input to saving the results, including detailed descriptions of key features. In conclusion, there is a chapter characterizing the application of developed program on real data from clinical studies, including the results and evaluation of the usability of program. The program will mainly be used in neuroscience research.
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Quality of services in IP Telephony in Wirelass Networks
Slavíček, Tomáš ; Kyselák, Martin (referee) ; Vyoral, Josef (advisor)
The thesis deals with the principles of assurance quality of services in IP networks. The first part of the thesis describes specifications which are required by current applications for data network, and also illustrates the methods suitable for solving those requirements. The most attention is given to multimedia service VoIP whose development has not been finished from far. That theoretical knowledge implies in the second part of the thesis which analyzes the implementation of assurance QoS for the service VoIP within the standard 802.11, or more precisely, for wireless networks in general. The simulation of wireless networks within the program Opnet Modeler and the attest of the ability to assure QoS within both wireless networks and their limitations with an unswitched network are described in the next step. The current possibilities how to build up WLAN with the bearing QoS are sized up in conclusion.
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Visualization and export outputs from functional magnetic resonance imaging
Přibyl, Jakub ; Gajdoš, Martin (referee) ; Slavíček, Tomáš (advisor)
Thesis discusses the principles and methodology for measuring functional magnetic resonance imaging (fMRI), basically the origin and use of BOLD signal types used experiments. Further attention is paid fMRI data processing and statistical analysis. Subsequent chapters are devoted to a brief description of the most common software tools used to analyze data from fMRI. The main section was to create a program in MATLAB with a detailed graphic user interface for easy visualization and export output from analyzes of fMRI data. The second half is devoted to describing the program developer and graphic user interface, including key functionality. The final section describes the application program with real data from clinical studies of dynamic connectivity and use in an international project APGem.
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Power flash battery unit for a photo
Slavíček, Tomáš ; Zeman, Václav (referee) ; Pavelka, Ondřej (advisor)
In the thesis deals with the design of the flash unit to take photos with a maximum output of 400Ws. Proposal flash drive contains a regulation of the maximum power output 12,5Ws. The flash unit is supplied from the battery. Bachelor thesis contains a charging circuit. As lamp use lamp IFK - 120 with a maximum output of 120Ws flash. Maximum performance is achieved by parallel connection of four of these lamps. The flash unit is supplied from the battery. The flash unit includes a DC-DC converter with adjustable output voltage of 100W.
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Legal Aspects of the UN Reform with the Main Focus on the Sanctions of the Security Council
Slavíček, Tomáš ; Hýbnerová, Stanislava (advisor) ; Ondřej, Jan (referee)
Je nutné podtrhnout, že OSN je univerzální, mezivládní organizace, primárně určená k ochraně mezinárodního míru a bezpečnosti, což odráží Charta v řadě ustanovení. Od samého počátku některá z nich (zejména Kapitola VII) vyvolávala řadu kontraverzí. Pokusy o reformu provází OSN a její statut od jejich zrodu. V práci této otázce věnuji příslušnou kapitolu. Skutečnost, že většina návrhů nepřekročila negociační fázi, svědčí ve prospěch jiných postupů, které činí z OSN, její Charty a příslušných orgánů živý mechanismus. V práci jsem se pokusil tyto procesy, spojené s činností Rady bezpečnosti, identifikovat a blíže objasnit. Z tohoto důvodu jsem se prioritně soustředil na proces praktického uplatňování sankcí Rady bezpečnosti, a to jak v období studené války, tak i v postbipolární éře. Ta přinesla řadu mocensko - politických a bezpečnostních změn, což vyjadřuje i reforma sankčního mechanismu. V práci jsou uvedeny jak sankce rady Bezpečnosti bez použití síly realizované od počátku 90tých let, tak i návrhy de lege ferenda na jejich novou koncepci, zpracované několika členskými státy. Tento vývoj od tzv. plošných sankcí k cíleným opatřením postihujícím především osoby a instituce v postavení orgánu státu představuje novou kvalitu sankční složky, k jejímuž uplatnění má Rada bezpečnosti mandát daný Chartou OSN....
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