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Historical development of steel manufacturing processes in the 20th century
Vácha, Pavel ; Pernica, Vítězslav (referee) ; Šenberger, Jaroslav (advisor)
The introductory part of theses is devoted to the characteristics of the iron and steel, production of crude iron and steel. The following chapter focuses on the description of the processes of steel production during the period of industrial revolution. Theses is continuing with a part containing an overview of modern technologies for steel production in the 20th century. There are methods of steel production of its largest producers presented in the final part since the early 20th century to the present, focusing on the territory of today's Czech Republic with division into four periods.
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Single-Phase Induction Motor
Vácha, Pavel ; Lapčík, Josef (referee) ; Hájek, Vítězslav (advisor)
The bachelor work is concerned the thesis of a single-phase induction motor that´s perpetually more used in all over the world. Its aim is assembling the information about this type of motor and its calculation. The content of the first part is the theoretical analysis of a single-phase induction motor and acquirement ways of the stroke moment. The practical part contains a basic schema calculation of the single-phase induction motor with an auxiliary phase and a processing demonstrate example of calculation of the single-phase induction motor with concrete parameters along suggested process. In the conclusion there is the evaluation of the whole process.
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Single-Phase Induction Motor Calculation
Vácha, Pavel ; Vítek, Ondřej (referee) ; Hájek, Vítězslav (advisor)
The master´s thesis deal with the thesis of a single-phase induction motor that is more and more used all over the world. Its aim is assembling the information about this type of motor and its calculation. The content of the first part is the theoretical analysis of a single-phase induction motor and acquirement ways of the stroke moment. Than the work contains a project of basic schema of the single-phase induction motor with an auxiliary phase. The practical part is devoted to an elaboration of demonstration example of the single-phase induction motor with concrete parameters calculation, its method was projected before. Than there is practising successived measuring on the motor of the same parameters made firm EMP s.r.o. Slavkov by Brno in this part. In the conclusion there is the evaluation of the whole process with reached results.
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The proposal to improve the marketing strategy for cafeteria CrossCafe
Vácha, Pavel ; Postler, Milan (advisor) ; Tichavský, Petr (referee)
The objective of this bachelor thesis is to describe the marketing strategy of the franchise coffee chain CrossCafe. The work contains the combination of theoretical knowledge and practical fieldwork. I used a SWOT analysis, analysis of competition, identification of typical customer and assessment of the current marketing strategy to propose a new alternative strategy. This strategy contains the draft of a potential direction the whole concept in the future could adopt.
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The effects of the process of digitalization on Czech TV
Vácha, Pavel ; Mathé, Ivo (advisor) ; Myslík, Václav (referee)
This work describes the effects of the process of digitalization of the terrestrial
television signal broadcasting on the Ceská televize (Czech Television) station as
a public service broadcaster. The introduction provides a basic explanation of the
term digitalization and the history of digitalization of television production as the
first stage of digitalization of the terrestrial television signal broadcasting.
The first chapter presents a brief history of television and the television market
in Czechoslovakia and the Czech Republic which also indicates the situation in
the market before the process of digitalization of the television signal
broadcasting began. The next section presents an overview of the legal
framework of the process and the technological solution.
In chapters dedicated to two new programme groups whose origination is made
possible by a change in the broadcasting of the signal, their creation is described
in the context and the first years of broadcasting are evaluated. The thesis also
deals with the issues related to the emergence of new private television stations
and their influence on the Czech Television.
In conclusion, the audience is analyzed as one of the indicators of success and
trends established by the process of digitization in the market and the future
development in the television market from the viewpoint of the Czech Television
station is addressed.
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Production of the documentary films
Vácha, Pavel ; Oukropec, Petr (advisor) ; Pražský, Přemysl (referee)
The Bachelorś thesis discusses the producer aspects of the current documentary films production in the Czech Republic. Based on the history outline, the thesis distinguishes documentyry according to their types and genres. In the following part, the thesis sums up the new forms of production and distribution.
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Introduction to Feature Selection Toolbox 3 – The C++ Library for Subset Search, Data Modeling and Classification
Somol, Petr ; Vácha, Pavel ; Mikeš, Stanislav ; Hora, Jan ; Pudil, Pavel ; Žid, Pavel
We introduce a new standalone widely applicable software library for feature selection (also known as attribute or variable selection), capable of reducing problem dimensionality to maximize the accuracy of data models, performance of automatic decision rules as well as to reduce data acquisition cost. The library can be exploited by users in research as well as in industry. Less experienced users can experiment with different provided methods and their application to real-life problems, experts can implement their own criteria or search schemes taking advantage of the toolbox framework. In this paper we first provide a concise survey of a variety of existing feature selection approaches. Then we focus on a selected group of methods of good general performance as well as on tools surpassing the limits of existing libraries. We build a feature selection framework around them and design an object-based generic software library. We describe the key design points and properties of the library.
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Texture similarity measure
Vácha, Pavel
This paper surveys the current best texture representations and studies their application for a texture similarity measure development. A simple experiment that evaluates texture similarity is proposed and the performance of several most advanced texture features is verified on it. In order to eliminate the influence of spectral information monospectral textures are considered in this study only. The paper suggests the L1 norm with either Markovian or Gabor features as the best texture similarity measure.
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