National Repository of Grey Literature 12 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Characterization of electronic properties of nanowires for electrochemistry
Kovařík, Martin ; Čech, Vladimír (referee) ; Kolíbal, Miroslav (advisor)
Elektrochemické metody nacházejí využití v mnoha aplikacích (např. senzorice, skladování el. energie nebo katalýze). Jejich nespornou výhodou je nízká finanční náročnost na přístrojové vybavení. Abychom lépe porozuměli procesům probíhajícím na elektrodách, je dobré znát elektronickou pásovou strukturu materiálu elektrody. Úkolem této práce je vyhodnotit výstupní práci a pozici hrany valenčního pásu nových materiálů pro elektrody, konkrétně cínem dopovaného oxidu india pokrytého nanotrubicemi sulfidu wolframičitého. Ultrafialová fotoelektronová spektroskopie a Kelvinova silová mikroskopie jsou metody použité pro tuto analýzu. Zvláštní důraz je kladen na přípravu vzorků elektrod pro měření, aby nedošlo k nesprávné interpretaci výsledků vlivem vnějších efektů jako je např. kontaminace nebo modifikace povrchu.
Evaluation of the Financial Situation in the Firm and Proposals for its Improvement
Kovařík, Martin ; Rompotl, Jaroslav (referee) ; Luňáček, Jiří (advisor)
This bachelor’s thesis analyses the financial situation of company KARAT software, a.s. between the years of 2013–2017, with the use of chosen methods of financial analysis. Based on the results, the financial situation of the company is collectively evaluated and then recommendations are designed, that could improve current financial situation of the company.
Comparison between groups of radical football fans in Czech repuplic and neighbour states (BRD, Poland) and their change from the migration point of view.
Kovařík, Martin ; Stracený, Josef (advisor) ; Samek, Tomáš (referee)
The focus of this master thesis is the comparison of extreme football fans, more specifically ultras and hooligans in the Czech Republic, Germany, and Poland and the influence of the European migrant crisis on these groups. In the theoretical part of the thesis, the general characteristics of the hooligans subculture, its origins, and development will be described. Furthermore, the functioning of the extreme fan groups in the neighbouring countries of the Czech Republic, i.e. Germany and Poland will be outlined. Moreover, the political stances of these countries on the issues related to the migrant crisis are depicted. These stances have a large impact on shaping of public opinions, including the aforementioned groups. The analytical part of this thesis consists of six interviews. These interviews should help with understanding the views on the migration of the members of the radical fan groups in the selected countries and moreover closely depict the hooligans scene across specific regions. The goal of this thesis is hence to depict the origins, development, and the members of a hooligans subculture on one side. And on the other side, to explain how the European migrant crisis (historical phenomenon of the past decade in Europe) has influenced the stances of the hooligan subculture on the influx...
Problematika dojicích robotů Lely
This thesis is focused on milking robots. In teoretic part I deal with biologics and etologics factors of milking technology. As well as I am interested in historics development of milking technologies. I introduce current technical request on milking too. Breefly I am introducing modern producents of automatic milking technology and economic question of using the automat. In practise part I evaluate data from working of the milking automat of branch LELY in mutual production relationship. Time period in research are one day and some parameters from more than one year. The subject of research are two farms involved in organics farming and one farm is involved in conventional farming.
Electromagnetic Acceleration Device With More Stages
Kovařík, Martin
This paper describes the design and realization of multistage electromagnetic accelerating device (gun) and possibilities to increase its effectivity. Including a simulation of a magnetic circuit and designs of each components. Whole desing is focused on propper countermeasures against the damage of switching transistors.
Experimental electromagnetic acceleration device with more stages
Kovařík, Martin ; Červinka, Dalibor (referee) ; Martiš, Jan (advisor)
This master thesis deals with design and realization of multistage electromagnetic accelerating device (gun) and possibilities to increase its effectivity. This work contains a simulation of a magnetic circuit and designs of each components, inclusive of control circuits. Reached effectivity will be measured by appropriate methods.
Analysis of one-dimensional structures using Kelvin Probe Force Microscopy
Kovařík, Martin ; Bartošík, Miroslav (referee) ; Kolíbal, Miroslav (advisor)
This bachelor's thesis deals with the use of Kelvin probe force microscopy (KPFM) for analysis of 1D nanostructures, namely germanium nanowires and tungsten disulfide (WS2) nanotubes. First part of this thesis is dedicated to the possibility of gold nanoparticles detection on germanium nanowires and also to the analysis of relevance of the KPFM method to measurements performed at various humidity. Second part deals with the measurement of surface potential changes on WS2 nanotubes induced by interaction with light. We have concluded, that relative surface potential changes can be measured at various humidity. This conclusion is also applied to study the interaction of WS2 nanotubes with monochromatic light. The experiment has revealed, that when exposed to light with defined wavelength, nanotubes coated with gold nanoparticles show opposite surface-potential changes as compared to pristine nanotubes, which indicates different physical processes under way.
Kovařík, Martin ; Pavlík, Michal (referee) ; Šteffan, Pavel (advisor)
This bachelor’s thesis describes the design and construction of electromagnetic gun for testing projectiles from different ferromagnetic materials with maximal power 19 J. Conventional projectile propulsion mechanisms include the use of compressed air or explosion which places theoretical limits on the maximum muzzle velocity limited by laws of thermodynamics. The electromagnetic coil gun, explores the use of electromagnetism in accelerating projectiles which offers a much higher theoretical limit on muzzle velocity. In addition of an electromagnetic acceleration is possible to regulate output velocity/energy of projectile, and acceleration applied on projectile.
Voltage transformer
Kovařík, Martin ; Huzlík, Rostislav (referee) ; Ondrůšek, Čestmír (advisor)
This bachelor´s thesis focuses on the elements of equivalent circuit parameters of voltage instrument transformer TJC 7-G from the portfolio of ABB. Main focus is placed on correct identification of the leakage reactance of primary and secondary winding, which are used for correct settlement of protections. The measurement is done by using methods of measurement of transformer without load and with short circuited secondary terminal. The values are measured for different frequency levels, in order to determine precisely all the parameters. The theoretical part describes the use of instrument transformers, theoretical creation of equivalent circuit and parameters which affects the accuracy class. The conclusion contains the evaluation of different methods for determining the elements of the equivalent circuit and with its final assembly.
Anthropometric research of the adult population and its applications in interiors and architecture
Kovařík, Martin ; Petelen, Ivan (referee) ; Hronský, Michal (referee) ; Doc.Ing.Veronika Kotradyová,PhD. (referee) ; Šindlar, Jiljí (advisor)
This thesis focuses on research in the field of anthropometric measurements of the adult population, its history, basic concepts and research itself, conducted under the author’s leadership of the NIS project at the Mendel University in Brno. The research results and its application in the field of interiors and furniture should be used to revise the architectural patterns and standards dealing with the relations on the axis between man – interior – furniture. It describes the relations of individual parameters, a person's height and weight, their development depending on age and sex, compares the height curve growth in Czech population and in Europe. The results of the work should serve as a basis for revising the existing typological principles and standards with regard to new results; in conclusion the author proposes conceptual changes of the fixed schemes in relations of man and interior.

National Repository of Grey Literature : 12 records found   1 - 10next  jump to record:
See also: similar author names
11 KOVAŘÍK, Martin
7 KOVAŘÍK, Michal
1 Kovařík, M.
2 Kovařík, Matěj
7 Kovařík, Michal
1 Kovařík, Milan
2 Kovařík, Miroslav
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