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Surface relief evolution in cast superalloy In738LC fatigued at room temperature
Samek, Petr ; Obrtlík, Karel (referee) ; Juliš, Martin (advisor)
Low cycle fatigue is an important valving parameter of materiale which are exposed random alternate strain during their operation. The alternate strain in that material is caused by temperature fluctuations during operation and outages such as aircraft engines. Tests of low cycle fatigue were performed on samples of superalloy Inconel 738LC at stable room temperature at 23°C. The actual experiment took place at certain intervals, consisting of cycling itself, and observing changes in surface relief by light and electron microscopy. There was observed significant surface relief at an early stage of low cycle fatigue. We compared results of measurement with other different observation methods.
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The Model of Financial Compensation for placement of a Deep Geological Repository of Radioactive Waste in the Czech republic in period from 2010 to 2016
Englerová, Anna ; Zeman, Martin (advisor) ; Vebrová, Ludmila (referee)
Author examines a way of allocation of governmental financial resources to municipalities in locations preselected for deep geological repository. She is searching for a way how to add a motivational incentive to the process of allocation of financial resources in order to improve municipalities attitude towards deep geological repository. Hypothesis, examined in this thesis, contains two related questions. It is assumed that (1) amount and structure of financial resources can significantly affect municipalities decision making and also that (2) current mechanism of allocation of compensations is ineffective and does not create sufficient incentives. Currently (end of the year 2016), negotiations between government and municipalities are in crisis despite significant financial compensation from government nuclear account to the municipalities. This thesis have potential to change municipalities negative stance on deep geological repository through motivational model of resource allocation. Theoretical part reviews basic economic background and introduces historical, sociological, technological and economic views of radioactivity and deep geological repository. In practical part author analyzes socio-economic situation, compares evolution of transfers from government to municipalities with their attitude towards deep geological repository in time and shows that current system of resource allocation does not motivate the municipalities to change their stance on deep geological repository. That confirms second part of our hypothesis. Author also proposes a motivational model of resource alllocation. She confirms its viability by comparing it with similar models from other countries, by surveying mayors of concerned municipalities and also by examining experts opinion. Verification of the model confirmed its motivational effect. By that, first assumption of our hypothesis, that structure of resource allocation can significantly affect municipalities decision making, was confirmed.
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Memes and the Theory of Universal Darwinism
Havlík, Vladimír
The article deals with the philosophical presuppositions and groundwork of the memetics. The central question is an analysis of Universal Darwinism as a common and universal evolutional principle or pattern that always springs in every environment when there're fulfilled required conditions. An evolutional process could be possibly described like an algorithmic process that faces to the rise of organized orderliness. Darwinism in this generally universal sense points to a distinctness survival of any kind self replicated code of information that has some influence over its probability of replication. The article stresses methodological importance of memetics as it makes possible to introspect variety of cultural development from a simple unification perspective.
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The structural and the fundamental mechanical properties of intermatallics on the base of TiAl
Krahula, Karel ; Dlouhý, Ivo
Gamma TiAl alloys are emerging as a pervasive structural material. Remarkable progresses have been made through refining lamellar microstructure and grains, microalloying, chemistry modification, process development and/or their combination. The main thrust was to enhance resistance to creep deformation, oxidation and high cycle fatigue deformation/failure. Less or even no knowledge have been obtained in the field of the intermetalics fracture at uniaxial or bending loading, there are missing data about their behaviour at the presence of cracks and other defects. The reason is simply in the other properties that are key from application point of view. Due to their brittleness at temperature close to room temperature the investigation of the intermetalics fracture is complicated but promissible provided it bring ideas for the further development of the alloying and microstructure. The paper is focused on the first steps in this field.
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Prehistoric culture and birth of human imagination
Půtová, Barbora ; Soukup, Václav (advisor) ; Malina, Jaroslav (referee) ; Valde-Nowak, Paweł (referee)
The subject of this dissertation Prehistoric Culture and Birth of Human Imagination is an interdisciplinary analysis of creation, evolution and interpretation of prehistoric art. The work aspires to establish a new academic discipline temporarily referred to as "prehistoric art" as well as embracing the genesis of human creativity and imagination from the point of view of human sciences. The first part of the dissertation focuses on the phenomenon of so-called proto-art, i.e. non-utilitary artefacts created by hominidae in the Lower and Middle Paleolithic. That is why these artefacts are the subject of many scientific controversies concerning the issue of genesis of symbolic manifestations of human behaviour. In this context, paintings and drawings done by apes are analysed; some scientists believe they prove that no boundary line can be set between the man and other apes. This might be the reason why works of parietal Upper Paleolithic are considered to be the pivotal proof of genesis of human creativity. However, these works were questioned and criticised for their prehistoric authenticity at the end of the 19th century. The effort to understand the purpose and meaning of prehistoric artefacts is documented in a chapter discussing the history of interpretation, theories and hypotheses formulated on the...
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French System of Innovation
Horáková, Jana ; Vlčková, Jana (advisor) ; Vošta, Milan (referee)
This thesis is focused on French innovation system and its outputs. The aim is to analyze innovation performance of France, as well as its innovation policy and to find out the meaning of the innovation system for French economy and its competitiveness. The thesis also includes a case study of a shareholder and presents his perspective. The first chapter explains basic definitions and innovation related terms and reviews innovation associated theories. The second chapter examines the French innovation system evolution and its performance based on statistical data. Moreover, the French innovation business conditions and an innovation policy will be discussed. Following the analysis of the French innovation system, the last chapter evaluates whether the target of reinforcing innovation capacity is met. At the same time, the third section presents a player of the system, Raise company, and its position within this innovation system.
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Technology of manufacture and treatment of medieval arrowhead
Kašpar, Jan ; Stránský, Karel (referee) ; Stránský, Karel (referee) ; Doležal, Pavel (advisor)
This thesis analyses issue of manufacture, typology and use of medieval arrowheads. In theoretical part describe historical evolution of bow and his archaeological discovery in Europe, especially from medieval times. After that is revealed historical evolution of arrowheads and describe their typology. In next chapters are mentioned ways of iron production, mainly in early medieval times and also describe technology of manufacture different types of arrowheads. There is a characterization of medieval arrow, his construction and characteristics. Continuously in this background research are revealing questions of penetration depend on the various types of arrowheads, which are testing on the most known types of armour like chainmail or breast plate. In experimental part of this paper are metallographicaly analyzing archaeological discoveries from the early and late medieval times. Conclusions about their manufacturing, treatment and possibilities of use are built on knowledge about arrowheads structures, hardness and shapes.
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Analysis of the russian investment environment focused on foreign direct investment in the selected countries of BRICS
Tuktamyšev, Eduard ; Gullová, Soňa (advisor) ; Klosová, Anna (referee)
The aim of this Master thesis is to analyze investment environment of the Russian Federation by focusing on foreign direct investment in the selected countries of BRICS cluster. First chapter is dedicated to the theoretical definition of the investment climate, observation methods such as PESTEL and SWOT analysis, indexes of the multinational organisation (Global Competitivness Index, Ease of Doing Business a Index of Economic Freedom). This chapter also defines investment incentives and foreign direct investment together with typology of this two terms. Second chapter focuses on the Russian investment policy especially on legislative and administrative investment regulation. Last part of this chapter focuses on development of special economic zones, which parcipate in alocation of the foreign direct investment in Russia the most. At the end of this thesis there are strenghts and weaknesses of the russian investment environment together with opportunities and threats described.
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Aspects of the virtualization of higher education and its comparison in the CZ and US
Dlauhá, Dominika ; Šedivá, Zuzana (advisor) ; Pour, Jan (referee)
The topic of this thesis is the evolution of online higher education in the CZ and US, from its beginnings to its current state. Emphasis is placed on describing MOOCs and virtualization in education, ranging from technological, pedagogical and didactic aspects to legislature and finance. A survey was conducted to determine the interest in online courses at the University of Economics, Prague and experience with online learning, resulting in an outline of the future development in this area.
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