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Investigation of new anode materials for methanol polymer fuel cells
Fiala, Roman ; Sofer, Zdeněk (referee) ; Matolín, Vladimír (advisor)
We investigated new types of anode catalysts for polymer membrane fule cell (PEMFC). Pt doped CeO2 thin lms were deposited by rf-magnetron sputtering on carbon nanotubes (CNTs) directly grown on GDL by using CVD. We observed considerable increase of speci c power by 1000 times and more in comparison with standard PtRu anode catalyst. For this new anode system we obtained the speci c power of 44.3 W/mg(Pt). The interaction of Pt with CeO2 layers with di erent substrates was investigated by using photoelectron spectroscopy. The results showed that platinum was in cationic state and the Pt2+/Pt4+ ratio was dependent of substrates materials. We also demonstrated that the performance of direct methanol fuel cell with Pt and PtRu catalyst can be dramatically increased simply by adding sodium hydroxide to methanol fuel. Cell voltage and power output characteristics were studied in dependence on current, temperature and concentration of sodium hydroxide. Endurance test was performed and the fuel cell exhibited stable response. Power density of 80.7 mW/cm2 was recorded for 2 M methanol/2 M sodium hydroxide fuel 30řC.
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Concept of the Implementation of the Mobile Monitoring System in the Armed Forces of the Czech Republic
Caithaml, Vít ; Fiala, Radek (advisor) ; Koza, Zdeněk (referee)
The thesis concerns the mobile monitoring telemetry system and its implementation within the Armed Forces of the Czech Republic. The object of the monitoring system is to give commanders an overview based on the monitoring of biological and technical values of the current mental and physical state of their soldiers and with the help of alarm limits to warn of abnormal readings of the monitored values. The system should help prevent injuries caused by exhaustion and should improve the combat efficiency of the whole unit. The thesis goes on to describe the concept of the system as a whole and the alignment of each seperate modul. The functionality of the system was verified through practical measurement. The results and findings throughout the thesis form the basis for the design of a second generation system and for modifications of the presented algorithms.
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Analysis of pile load test
Ponížil, Cyril ; Kotačková, Alena (referee) ; Fiala, Radek (advisor)
There is ussualy used the Masopust's method to assessment the piles in Czech Republic. This method is based on statistical processing of large data set of load piles tests. Due to the using of regression coefficients this method is relatively complicated and not very transparent. Instead, foreign standards ussualy use direct the values of limit stress on the base of piles and unit friction capacity. Procedure for determining the bearing capacity of the piles is thus considerably simplified. In this thesis the Masopust's method is compared with the methods used in Germany and Austria. This comparison provides insight to the safety level that include various approaches.
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Financial Analysis of a Firm HOTEL, Ltd
Němcová, Barbora ; Hajdíková, Taťána (advisor) ; Fiala, Roman (referee)
Thesis "Financial analysis firm Hotel, Ltd." is aimed at assessing the financial situation of the company for the period 2012-2015 on the basis of basic information about the company and the data from the financial statements. In this work are used basic financial analysis methods such as analysis of absolute, differential and ratios. At the end of the practical part are then applied a comprehensive evaluation methods aimed at using one number to comprehensively to characterize the financial situation of the company. The aim of this work is to describe the resulting value analysis, to assess the development results achieved over time and compare them with average values in the industry.
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Business Plan
Straková, Barbora ; Fiala, Roman (advisor) ; Řepová, Helena (referee)
This masters thesis is focused on the theoretical description of the business plan creation and is devided into chapters where the plan is described in details. The theoretical part contains an explanation of legal issues of the real estate renting. The practical part is focused on practical application and is designed as an instruction how to do the business in this area. The target of this thesis is the business plan creation. Financial analysis will reveal if the plan is to be realized and if it is payable. Analysis of the market, included in the plan, is focused on customer behaviour and competitors analysis. Analyses of internal and external environment are focused on the factors which affect the market position of the business.
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Design of Deep Fundation of Elderly Care Home in Plzeň
Janočo, Martin ; Fiala, Radek (referee) ; Brdečková, Helena (advisor)
The objective of this bachelor’s thesis is design of pile foundation of a building in specific geological conditions. The design is based on engineering geology report of the area and a scheme of loads on foundations. Calculations are executed in spreadsheet software Excel and in geotechnical software GEO5 – Pile module. Finally, these calculations are compared with Plaxis 2D output.
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Design of Gravity Wall in Terms of Flysch Geology
Horňáková, Lenka ; Fiala, Radek (referee) ; Brdečková, Helena (advisor)
The bachelor´s thesis is divided to two main parts, from which first is focused on the theory of reinforced concrete retaining walls. The second, practical part deals with design and assessment of the cantilever breast wall supporting the sloping slope in place of annex of congress hall situated above the northern wall of Tatra´s hotel in Velke Karlovice. The labor contains processing of geomorphology and geology surrounding area, load, sample calculation cantilever breast wall and its assessment.
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