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Thermodynamic analysis of processes in Hydrogen fuel cells.
Pavelka, Michal ; Maršík, František (advisor) ; Grmela, Miroslav (referee) ; Sciacovelli, Adriano (referee)
Non-equilibrium thermodynamics, which serves as a framework for formulating evolution equations of macroscopic and mesoscopic systems, is briefly reviewed and further developed in this work. For example, the relation between the General Equation for the Nonequilibrium Reversible- Irreversible Coupling (GENERIC) and (ir)reversibility is elucidated, and Onsager-Casimir reciprocal relations are shown to be an implication of GENERIC. Non-equilibrium thermodynamics is then applied to describe fuel cells and related devices, and theoretical conclusions are compared to experimental data. Moreover, a generalization of standard exergy analysis is developed bringing a new method for revealing a map of useful work losses in electricity producing devices. This method requires a non-equilibrium thermodynamic model, and so the general theory of non- equilibrium thermodynamics and optimization of real power generating devices stand side by side.
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Simulation of cryptographic algorithms using FPGA
Németh, František ; Mašek, Jan (referee) ; Smékal, David (advisor)
Bachelor thesis is dealing with a cipher standard AES and with a design of encryption and decryption components for AES in special modes of operation. Programming language is VHDL. In theoretical part of thesis is a further descriptions of AES and behaviour of block cipher operation modes. Furthermore the brief description of VHDL, FPGA and NetCOPE framework is a piece of theoretical part as well. The practical part contains designs which are made in developing environment Vivado from Xilinx. Programmed modes of operation are ECB, CBC, CTR and CFB. Simulation outputs and synthesis results are summerized in tables.
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Vliv institucí na neefektivitu trhu: případ generických léčiv
Štěpánek, Martin ; Smrčka, Luboš (advisor) ; Strouhal, Jiří (referee)
There is a strong evidence suggesting that the law of one price is violated in the retail markets for generic medicaments although the products are essentially homogeneous; the original brand medicaments seem to be sold at a significant price premium over their generic equivalents and also the generics are not sold at the same price. I utilize the standard models of oligopoly and augment them by additional specifications to account for market imperfections and specifications of pharmaceutical industry to explain the dispersed price equilibrium as a natural result of imperfect competition on the market. I argue that under the assumptions of information asymmetry, uncertainty, heterogeneity of patients, and inability to promote products, firms are able to price their medicaments above others. Further, I support my theoretical results with empirical data of medicines sold in the Czech Republic. The observations closely match my conclusions and findings in the prior literature.
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