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Fabrication of well defined nanoporous structures with application in membrane sensing
Fabianová, Kateřina ; Édes, Zoltán (referee) ; Sadílek, Jakub (advisor)
Theme of this bachelor thesis is focused on preparation of the metal nanomenhir structures situated in highly oriented matrix of silicon nitride nanopores based plasmonic biosensor. Porous structures were prepared by reactive ion etching of silicon nitride film using electron beam lithography prepared temporary mask as a template. Deposition of metals was handled by evaporation and magnetron sputtering and results was compared. Finally, this work assumes reached results including successful approach of sensor preparation without contamination of surrounding surface by heavy metal ions.
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Epitaxial growth of cobalt islands via oxide mediated epitaxy
Stará, Veronika ; Kolíbal, Miroslav (referee) ; Čechal, Jan (advisor)
This bachelor thesis deals with preparation, growth and analysis of cobalt thin films. The films are formed on silicon (111) samples covered with a thin layer of native oxide SiO2. Cobalt thin films were prepared using oxide mediated epitaxy method with the effusion cell as a source of cobalt atoms. Composition and morphology of the resulting Co system was studied as a function of the annealing temperature. Another goal of this research was to determine the dependence of the final island shape on the amount of deposited material and substrate orientation. The prepared structures were analyzed using X-ray photoelectron spectroscopy, atomic force microscopy and scanning electron microscopy. To determine the thickness of subsurface islands the samples were etched in buffered hydrofluoric acid and analyzed using above mentioned methods.
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Fabrication of graphene mid-infrared biosensor
Gallina, Pavel ; Hrabovsk, Milo (referee) ; Sadlek, Jakub (advisor)
The main subject of this bachelor's thesis was fabrication and measurement of response of graphene plasmonic biosensor prepared on flat and curved surfaces. Graphene produced by chemical vapour deposition (CVD) method was used for preparation of these sensors. The structures were fabricated using electron beam (EBL) and optical lithography, reactive ion etching (RIE) and magnetron sputtering. The resultant sensors were then observed in electron (SEM) and optical microscope, the topography was surveyed in atomic force microscope (AFM) and the measurement was carried out by Fourier transform infrared spectoscopy (FTIR).
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The hydrogen modification of the graphene structures for field effect transistors
Kurfürstová, Markéta ; Čermák,, Jan (referee) ; Mach, Jindřich (advisor)
This master’s thesis is focused on the subject of graphene modified with atomic hydrogen and its electronic transport properties. Structural and electronic properties of graphene and hydrogenated graphene are compared in the theoretical part of the thesis. The Raman spectroscopy technique is described, including characterization of typical Raman spectra of both unmodified and modified graphene. Samples used during experimental part of the thesis are prepared via laser and electron lithography, and are set to be measured in a vacuum chamber. Subsequently, electronic transport properties are measured before and after hydrogen modification of graphene. Finally, hydrogenated graphene is irradiated using electron beam and changes in its structure are analyzed with Raman spectroscopy techniques.
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Analysis of costs, their showing - accounting and financial view
HEJTMÁNKOVÁ, Zuzana
The main aim of this thesis was to evaluate the structure, development of individual cost calculation and processing of the output selected. Theoretical part defines the costs as inputs to economic activity. This paper is further focused on the methodology of reporting costs in financial statements. Reporting of costs is dealt with under Czech accounting legislation and international accounting standards IFRS / IAS. Costs are further characterized on the basis of calculations and analyzed within the financial analysis methods, which are trend analysis, analysis of structures, analysis of the profitability and productivity. In Specific performance and cost calculation was chosen for another part of this paper and the calculation of costs was accomplished These methods have been used in specific conditions of GRENA company, which is engaged in the manufacture of fire, refractory plates and kitchen doors. In the practical part, it was founded that the cost-benefit ratio in companies selected is high. The company should focus on reducing costs and trying to maximize its relatively low profit.
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Význam mykorhizních hub při tvorbě půdní struktury
Čevelová, Lucie
The essence of this bachelor thesis is become with diffrent groups of mycorrhizal fungi, which support the formation of soil structure. Plants along with mycorrhizal fungi form symbiotic relationship that is beneficial for both partners. Thanks to this the plant receives vital nutrients and protected agains pathogens. Moreover the mycorrhizal fungi involved in the formation of the soil structure. The mycelium intergrows through the soil aggregates and provides mechanical stabilization of the soil. Fungi of the arbuscular mycorrhizal symbiosis produce the glycoprotein glomalin, which stabilizes the soil structure. To support the growth of mycorrhizal fungi in the soil, we follow right agriculture methods. We can also use the application of the vaccination preparation or additing biochar and other inorganic materials into the soil.
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Rozbor struktury nákladů na výrobu vína u vybraného vinařského provozu
Vítkovičová, Lenka
This dissertation Analysis of the structure of costs to produce one liter of wine is analyzing the costs that are associated with the production of wine in one selected wine operation. In this dissertation, the spreadsheet summaries are used to record the technological devices and equipment used in the production of white and rose wines, as well as calculations of operating costs and final analysis. Based on this analysis, costs were then determined that are needed to make to produce one liter of wine. The obtained calculation shows that referenced winery's production costs for production of table wine are currently on the level of 36,74 Czk.l-1 and for bottled wine 67,88 Czk.l-1.
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Změna struktury půdního fondu v SO ORP Mikulov v letech 2001-2013
Austová, Kristýna
The Bachelor Thesis is focused on the structural change in land use in administrative district of Mikulov in 2001--2013. The aim is to describe the issue of land use in the European Union and in the Czech Republic and especially to analyze and evaluate changes in land use in the selected area. Development of land resources in administrative district of Mikulov is recorded graphically and then concrete changes in the individual municipalities as cartograms. Input data for calculations and processing are obtained from the Czech Statistical Office. The result of Thesis is the analysis of trends and changes in all types of land, while the biggest changes are occurred primarily in agricultural land, arable land, vineyards and other areas. In 2001--2013, the amount of arable land decreased by 2 261 ha and the associated decrease in the total agricultural land as well. Conversely, it was a significant increase in vineyards (+1 214 ha) and other areas (+881 ha), which replaced the majority of arable land. On the basis of the low ecological stability are discussed recommendations for a more favorable development in terms of land use.
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Model výdajové strany rozpočtu Evropské unie implikovaný z principů teorie fiskálního federalismu
Plaga, Robert
The aim of this dissertation is to propose alterations in the volume and structure of the EU budget in order that the resultant European budget is based on the fundamental principles of the theory of fiscal federalism and the theory of optimal monetary areas so as to cope with asymmetrical economic shocks. The author has stipulated four economic allocation criteria based on the fundamental principles of the theory of fiscal federalism for the purpose of decision-making relating to the inclusion or rejection of individual expenditure categories. In the area of realisation of the redistribution and stabilisation function of public finances, this decision also gave consideration to the theory of optimal monetary areas for coping with asymmetrical economic shocks. The author recommends amending the EU budget by applying economic criteria based on the fundamental principles of the theory of fiscal federalism and on the basis of analysis of the expenditure structure of the current EU budget. Specifically, this should entail the inclusion of expenditure on national defence in the joint budget to an extent of 0.50 % of the GDP of the EU-27 and increasing the volume of "European" expenditure on science, research and development to 0.40 % of the GDP of the EU-27. This proposal further envisages maintaining expenditure on transport infrastructure projects of European importance (0.17 % of GDP), expenditure items in the area of foreign relations (0.067 % of GDP), and on assuring internal security and the judiciary (0.084 % of GDP). This model calculates administrative costs as 6 % of other budget items. In relation to the redistribution function, the author proposes discarding the European dimension of common agricultural policy and concentrating expenditure on policy in the area of economic and social coherence (0.50 % of the GDP of the EU-27) exclusively on support for economically less favoured regions. This model EU budget attaches great importance to the fulfilment of the stabilisation function of public finances by means of a stabilisation mechanism taking the form of a centralised system of unemployment benefits at 1.25 % of the GDP of the EU-27. This specific area of the common budget could also serve as a tool functioning on an asymmetrical basis, creating reserves at times of economic growth that can then be used at times of economic decline. The total expenditure concentrated within the proposed model EU budget has been calculated as 3.15 % of the GDP of the EU-27.
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