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Novel polymeric materials for electromembrane processes
Galajdová, Barbora ; Pientka, Zbyněk (advisor) ; Slepička, Petr (referee) ; Abbrent Nováková, Sabina (referee)
Present study describes synthesis, characterizations and electrochemical properties of novel materials or novel approaches of preparation and their testing for suitability in industrial application. Work is divided into two main groups. First group is focused on preparation and characterization of ion-exchange membranes and second group is focused on preparation and characterization of ionic liquids. Prepared ion-exchange membranes are further split in two subgroups: a) Anion exchange membrane - synthesis and characterization of chloromethylene polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene copolymer, which was tested in water alkaline electrolysis b) Cation exchange membrane - synthesis and characterization of: i. poly(vinyl phosphonic acid-co-acrylonitrile), which was tested in fuel cells ii. polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene with sulfomethyl group, which was tested for use in microbial electrolysis Prepared ionic liquids are also divided into three groups based on the main function group: a) Imidazolium - ethyl methyl imidazolium phosphonic acid ethyl ester b) Phosphonium - methyl tributyl phosphonium bis (trifluoromethyl sulfonyl) imide c) Sulfonium - trimethyl sulfonium bis (trifluoromethyl sulfonyl) imide Ionic liquids were synthesized and...
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Sanction mechanism in sport
Nováková, Zuzana ; Slepička, Petr (advisor) ; Bednář, Miloš (referee)
Title: Sanction mechanism in sport Objectives: The aim of the thesis is to analyse the sanction mechanisms applied in sports, their mutual relationship, the extent of autonomy of sport on the law, the answer to the question whether this condition is satisfactory and give suggestions to solve the alleged deficiencies. Methods: In this thesis are used a method of analysis, comparative analysis, and a method of synthesis Results: Have been found certain deficiencies in the procedural treatment of disciplinary and arbitration in the framework of the Sports Club, which have their origin in perhaps excessive Federal autonomy, this area would undoubtedly benefit from a higher rate of interference of the State, or at least harmonisation through the top sports institution Keywords: sports rules, disciplinary proceedings, arbitration proceedings, the Court of arbitration for sport, the Arbitration Commission of the Czech Olympic Committee
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Cell-biomaterial interactions in hard and soft tissue engineering
Zárubová, Jana ; Bačáková, Lucie (advisor) ; Mikšík, Ivan (referee) ; Slepička, Petr (referee)
Tissue engineering is an interdisciplinary field which aims to create substitutes of damaged tissues by combining cells with biomaterials. Cells are extremely sensitive to their microenvironment and so the cell response to biomaterials can be regulated by different extrinsic stimuli and alterations of biomaterial properties. Successful implant integration into the tissue can therefore be promoted by appropriate surface roughness, chemical composition, adhesion ligand density, as well as the availability of growth factors. This thesis mainly focuses on the development of orthopedic replacements and the improvement of the currently used blood vessel prostheses. Through the study of cell-biomaterial interactions, it was demonstrated that superimposed topography with features ranging from the nano to micro scale promotes cell spreading, proliferation, and the metabolic activity of osteoblast-like cells. Moreover, when comparing the chemical composition of biomaterials for orthopedic implants, higher osteoblast densities were observed on composites with 5-15 vol. % of calcium phosphate nanoparticles, while concentrations of 25 vol. % did not support cell proliferation. Cell viability, however, was not affected. In vivo, a more intensive formation of new bone tissue, was found on samples containing...
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Sanction mechanism in sport
Nováková, Zuzana ; Slepička, Petr (advisor) ; Bednář, Miloš (referee)
Title: Sanction mechanism in sport Objectives: The aim of the thesis is to analyse the sanction mechanisms applied in sports, their mutual relationship, the extent of autonomy of sport on the law, the answer to the question whether this condition is satisfactory and give suggestions to solve the alleged deficiencies. Methods: In this thesis are used a method of analysis, comparative analysis, and a method of synthesis Results: Have been found certain deficiencies in the procedural treatment of disciplinary and arbitration in the framework of the Sports Club, which have their origin in perhaps excessive Federal autonomy, this area would undoubtedly benefit from a higher rate of interference of the State, or at least harmonisation through the top sports institution Keywords: sports rules, disciplinary proceedings, arbitration proceedings, the Court of arbitration for sport, the Arbitration Commission of the Czech Olympic Committee
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Bioethanol as a renewable energy source
Kočan, Jakub ; Slepička, Petr (referee) ; Tesařová, Eva (advisor)
Tato diplomová práce se zabývá sledováním fermentačních postupů zaměřených na produkci ethanolu. Ethanol je produkován kvasinkami anebo bakteriemi Zymomonas mobilis. Zymomonas mobilis je gramnegativní bakterie, která se vyznačuje vysokým teoretickým výtěžkem ethanolu během fermentace a toleruje vysokou koncentraci ethanolu. Přestože je Zymomonas mobilis výborným producentem ethanolu, není vhodná pro konverzi biomasy, protože zkvašuje pouze glukosu, fruktosu a sacharosu. Tato práce se zabývá fermentačními testy bakterie rodu Zymomonas mobilis na širokém spektru substrátů za rozdílných podmínek. Byl sledován proces výroby ethanolu pomocí Zymomonas mobilis, konkrétně kmeny z České sbírky mikroorganismů CCM 2770, CCM 2771, CCM 3881 a CCM 3883. Porovnávány byly kultivace na různých typech medií (sacharosovém, fruktosovém, glukosovém a obilné zápary) při různých koncentracích uhlíkatého zdroje a za různých podmínek (aerobní, anaerobní). Ke stanovení obsahu cukru a lihu bylo použito HPLC. Ukázalo se, že jsou vhodné především kmeny CCM 3881 a CCM 2770, které narostly během 48 hodin a bylo u nich dosaženo nejlepších výsledků výtěžnosti ethanolu ( až 99 % teoretického výtěžku). Kmeny CCM 3883 a CCM 2771 rostly velmi pomalu, produkce ethanolu u kmenu CCM 2771 byla zanedbatelná. Jako nejlepší substrát se jeví glukosa,...
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