National Repository of Grey Literature 26 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
TACR TJ04000365: Project EDIMO in the year 2021
Chaloupecká, Hana ; Fiala, Roman ; Jakubcová, Michala ; Kozohorský, Jan
The paper describes methods of work on the project TACR TJ04000365 in the year 2021. The paper focuses on the description of the models SWIFT and SPRAY. Furthermore, the creation of a middle-model, which was necessary to develop as one step from many others to be able to merge both models, is described. Finally, the paper is engaged in the trial-run of the merged models. The paper introduces the input parameters and the outputs in the form of concentration maps. The appendix contains sensitivity study of the model SWIFT in respect to the main inputs.
Investigation of new anode materials for methanol polymer fuel cells
Fiala, Roman ; Matolín, Vladimír (advisor) ; Sofer, Zdeněk (referee)
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.
Investigation of new catalysts for polymer membrane fuel cells
Fiala, Roman ; Matolín, Vladimír (advisor) ; Bystroň, Tomáš (referee) ; Napporn, Teko Wilhelmin (referee)
Fuel cells are a promising alternate power source of electricity. Despite of sig- nificant improvement that was reached by research throughout recent decades, the technology is not still ready to large scale commercial use. The catalyst of fuel cell (FC) should be still investigated due to fact that the only reliable functional catalyst is Platinum, a noble and expensive metal, which makes the use of this technology not competitive. In this thesis, investigation of Platinum doped ceria catalyst and its modification prepared by physical technique of deposition which is magnetron sputtering is presented. The catalyst was studied using standard sur- face analytic techniques (PES, SEM, AFM, XANES) as well as electrochemical measurement (CV, PEIS). The principal part of this thesis reports direct analyses of catalyst in fuel cell using an individually designed fuel cell test station. Con- sidering the high power density (PD) about 1 W cm−2 and substantially higher specific power per gram of Platinum (SP) 1.6 kW mg−1 in comparison with com- mercial Pt-Ru/Pt-C reference catalyst and additionally the relatively longtime stability, the sputtered Platinum doped cerium oxide based catalyst was found a suitable catalyst for PEM FC. Moreover, possible substitution of Pt and CeO2 by other elements was shown. Beside of...
Investigation of new catalysts for polymer membrane fuel cells
Fiala, Roman ; Matolín, Vladimír (advisor) ; Bystroň, Tomáš (referee) ; Napporn, Teko Wilhelmin (referee)
Fuel cells are a promising alternate power source of electricity. Despite of sig- nificant improvement that was reached by research throughout recent decades, the technology is not still ready to large scale commercial use. The catalyst of fuel cell (FC) should be still investigated due to fact that the only reliable functional catalyst is Platinum, a noble and expensive metal, which makes the use of this technology not competitive. In this thesis, investigation of Platinum doped ceria catalyst and its modification prepared by physical technique of deposition which is magnetron sputtering is presented. The catalyst was studied using standard sur- face analytic techniques (PES, SEM, AFM, XANES) as well as electrochemical measurement (CV, PEIS). The principal part of this thesis reports direct analyses of catalyst in fuel cell using an individually designed fuel cell test station. Con- sidering the high power density (PD) about 1 W cm−2 and substantially higher specific power per gram of Platinum (SP) 1.6 kW mg−1 in comparison with com- mercial Pt-Ru/Pt-C reference catalyst and additionally the relatively longtime stability, the sputtered Platinum doped cerium oxide based catalyst was found a suitable catalyst for PEM FC. Moreover, possible substitution of Pt and CeO2 by other elements was shown. Beside of...
Strategic Analysis of an Enterprise
Kökényová, Kateřina ; Fiala, Roman (advisor) ; Tyráček, Petr (referee)
The aim of diploma thesis Strategic analysis of company is comprehensive analysis of current state of TIPAFROST a.s. The theorotical part of diploma is devoted to describing basic concepts of strategic management and especially analyses of external and internal environment. In practical part are applied theoretical knowledges to develop above mentioned analyses. The resultant factors are enroled in the SWOT analysis when their strenght and position in the company is evaluated using IFE and EFE matrix. The results are summarized in the TOWS matrix that makes the company's proposed strategic approach. The chosen strategy and particular recommendations for the future development serves the company's management.
Business Plan
Juranová, Petra ; Fiala, Roman (advisor) ; Kozáková, Petra (referee)
The aim of this diploma thesis is to create a business plan for establishing a bistro. In the beginning the thesis deals with entrepreneurship in general, with business plan requirements, and then with the business plan itself, based on the study of expert literature. Part of the plan is an analysis of the internal and external environment, financial plan and marketing plan. The conclusion of the thesis is whether the establishment of the bistro is feasible, cost-effective and financially sustainable. The thesis should be a basis and support in the implementation of this business plan.
Business Plan
Kůta, Martin ; Fiala, Roman (advisor) ; Hedija, Veronika (referee)
This thesis is focused on the composition of a business plan for a company concerned with regular cleaning of common rooms in apartment houses. The aim of this thesis is to determine the potential of the company in terms of its further development, and under which conditions can this development be kept. Theoretical findings from the entrepreneurial field, and practical experience, findings or analyses were used to evaluate these aims. The overall output would be a concrete identification of the relevant conclusions for this thesis.
The Financial Situation of HC Dukla Jihlava
Kříženecká, Monika ; Kozáková, Petra (advisor) ; Fiala, Roman (referee)
The aim of the diploma thesis is to describe and evaluate the financial situation of HC Dukla Jihlava s.r.o. Not only through financial analysis but also by comparison with other sports clubs. I am following the club's situation for the period from 1 May 2010 to 30 April 2016. The result of my work will be the assessment of the situation on the basis of these financial analyzes and PESTEL analysis and the subsequent determination of recommendations for improvement of the situation.

National Repository of Grey Literature : 26 records found   1 - 10nextend  jump to record:
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