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Intergration of a charging station into a family house photovoltaic system
Liška, Martin ; Langerová, Petra (referee) ; Šedrlová, Magdalena (advisor)
This bachelor’s thesis deals with integrating a charging station into a family house photovoltaic system. The thesis is divided into two parts, the theoretical and the practical. The purpose of the theoretical part was to conduct research about current possibilities concerning charging stations and their integration into the household. In the practical part, there were created function designs to integrate the charging station into the intelligent household and there was realised the testing of the selected charging station.
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Finding Weak Spots and Risk Analysis of a Part of the Information System in a City
Liška, Michal ; Novák, Lukáš (referee) ; Koch, Miloš (advisor)
The diploma thesis deals with the problem of finding weak points and risk analysis of a part of the information system at the municipal office of the Brno-Líšeň district, which deals with the issue of the organization of elections, namely the administrative provision and the constitution of the district electoral commissions. The thesis is based on the theoretical apparatus in the field of information systems, database systems and risk engineering. The thesis used the analysis of the Czech legal norms for the organization and conduct of elections and the specific conditions of the chosen type of municipal office.
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Design, Creation and Implementation of Software Applications in the Corporate Environment
Líška, Michal ; Koch, Miloš (referee) ; Novák, Lukáš (advisor)
The diploma thesis deals with the design, creation and implementation of a software application. The application is used to write and record tasks in the described company. The first part of the thesis clarifies theoretical concepts. Subsequently, analyzes of the company are prepared, as well as an analysis of the existing application solution. In the main part of the diploma thesis, the own design of the application solution is elaborated. The proposed solution should lead to more efficient and more transparent completion of tasks.
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Estimation of bone mineral density of cancellous vertebral bone in multi-energy CT data
Líška, Martin ; Jakubíček, Roman (referee) ; Chmelík, Jiří (advisor)
The principle of the BMD estimation method presented in this thesis consists in the tomographic scanning of the axial skeleton by a CT system with two different energies. The BMD estimation method was applied to acquisitions scanned by CT system IQon Spectral CT (Philips) on seven patients, two men and five women, in the lumbo-sacral region. For the functionality of the method, it is necessary to know the standardized amounts of selected elemental components contained in a given tissue, specifically in the cancellous bone of the vertebra. In the first part, the thesis deals with the theoretical part of solving the estimation of BMD from dual-energy CT data, two equations with several unknowns and their modification. The practical part deals with the program solution of the method of calculating the estimation of bone minerals in dual-energy CT data. The outputs of the presented BMD estimation method were processed and statistically compared with the other two phantom-less BMD estimation methods. The functionality of the method and statistical processing were solved in MATLAB and STATISTICA softwares.
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Thermodynamics of spacetime: A new perspective from the quantum realm
Liška, Marek ; Alonso Serrano, Ana (advisor) ; Oriti, Daniele (referee)
The main result of the thesis is the derivation of quantum phenomenological gravi- tational dynamics from the thermodynamics of local causal diamonds. By taking into account logarithmic corrections to entropy implied by quantum gravity effects, we derive new gravitational equations of motion which incorporate quantum corrections. The re- sulting theory appears to be a direct generalisation of the classical unimodular gravity instead of the general relativity. Upon obtaining the equations, we discuss their prop- erties and possible implications. As by-products, we also present a novel derivation of the Einstein equations from the thermodynamics of causal diamonds and a derivation of the logarithmic corrections to black hole entropy from the existence of minimal re- solvable area. Apart from the new results, we also provide an extensive review of the thermodynamics of local causal horizons. 1
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Design, Creation and Implementation of an Automated Data Exchange Solution
Kachlík, Marek ; Líška, Michal (referee) ; Luhan, Jan (advisor)
The bachelor thesis focuses on the desing, creation and implementation of an automated data exchange solution. The solution is used for recording of financial data in database system. The first part of the thesis describes the teoretical concepts needed to understand the whole work. In the second part the analyses of the company and its environment are created. In the most supporting part of thesis, the actual design of the process solution is developed. The solution should result in a streamlining and overal optimalization of the already implemented solution in the form of automated uploading of financial data into the database system.
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Data Exchange Automation
Spaček, Adrián ; Líška, Michal (referee) ; Kříž, Jiří (advisor)
Cílem této práce je popsání a analýza problematik datové výměny a automatizace procesů v prostředí živé databáze a externích zdrojů informací. V digitálním prostředí existuje mnoho způsobů získávání, transformace a transportu dat. Tato práce má za cíl jich opsat, dodávajíc argumenty pro a proti jejich použití v specifických situacích. Následně je prezentováno řešení situace vyžadující automatizaci datové výměny.
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Automation of measurement of directional characteristics of sound sources
Nimmerrichter, Benjamin ; Liska, Matej (referee) ; Schimmel, Jiří (advisor)
This bachelors thesis deals with the topic of automating the measuring of directional sound radiation characteristics of sound sources with the use of one to sixteen, possibly thirty-two microphones connected to an audio device, which supports the ASIO driver technology, which is connected to a computer with an installation of the MATLAB software. In the scope of this thesis a program was created, which is capable of measuring the 2D and 3D directional characteristics of sound sources and it can show the frequency spectrum of the signal. This work addresses the problematics of the effective value of discrete signals, calibration of microphones for measuring sound pressure level, the calculation and measuring of the level of acoustic pressure in dB (SPL), the autocorrelation of a discrete signal, plotting of the measurement in a polar or spherical plot and the calculation of the signal to noise ratio. This thesis contains a theoretical introduction to the measurement and to the propagation of sound, then the composition of the program and the measurement and an assessment of the measured results.
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Preparation of methacrylated hydroxybutyrates monomers and polymers
Liška, Marek ; Mgr. Petra Zbořilová, Ph.D (referee) ; Figalla, Silvestr (advisor)
The aim of this work is the study, design, and preparation of methacrylated derivatives of poly(3-hydroxybutyrate) and the subsequent preparation of polymers from the prepared precursors. A total of six compounds were prepared. The prepared compounds include methyl-3-hydroxybutyrate and ethyl-3-hydroxybutyrate prepared by alcoholytic depolymerization with monofunctional alcohol and their methacrylated derivatives. The preparation of ethylene glycol terminated oligomer of 3-hydroxybutyrate prepared via depolymerization using ethylene glycol in two ways is also an essential part of the work. The first way involves depolymerization using conventional heating and the second one explores the preparation of a series of oligomers with different molecular weights using microwave heating. Methacrylated derivatives of the prepared oligomers were also prepared. The prepared compounds and their actual preparation are characterized using multiple analytical methods including VPO, NMR, GPC, FT-IR, LC-MS, and DSC. A series of polymers were obtained from the prepared compounds by radical polymerization using purple light (with wavelength 405 nm) as the energy source. The prepared polymer networks were characterized by DSC and their tensile strengths were tested.
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