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Evaluation of dynamic damage of composite structure
Štefanovič, Peter ; Jetela, Václav (referee) ; Klement, Josef (advisor)
The first part of the diploma thesis with name „Evaluation of dynamic damage of composite structure“ focuses on designing device for impact experiments and suitable laminate samples made from prepregs. The conditions and problems of impact tests are also demonstrated here. The second part of the thesis deals with non-destructive control of damaged specimens based on thermography. This is mainly the extent of defects in the impaired area and the evaluation of results using the pulse infrared thermography method. Finally, the relative deviation in the crack size comparison between the visual method and thermographic are compared. Consequently, the residual strength of the damaged samples against undamaged specimens are compared using bending tests.
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Problém černého pasažéra v Severoatlantické alianci v období 2006 - 2016 a implikace pro fiskální politiku
Richterová, Jitka ; Maule, Petr (advisor) ; Klement, Josef (referee)
The purpose of this thesis is to examine the problem of free riding in NATO with regards to fulfilling the criteria of defence expenditures as well as econometric analysis and interpretation of the defence expenditures of the member states in the period of 2006 to 2016. Using spearman correlation test, this thesis finds a significant positive correlation between GDP of member states and their defence expenditures. Explanatory variables include main economic indicators such as GDP, GNI, share of GDP devoted to defence expenditures, average annual change in defence expenditures, etc. Main findings include the conclusion that there is a significant level of free riding in the North Atlantic Treaty Organisation and that larger member states indeed bear the larger burden. Furthermore, based on having lower average defence expenditures than NATO in the examined period, the thesis labels nineteen of the member states as free riding, given that their defence expenditures are below the NATO average. After examining and analysing free riding in NATO the thesis also highlights the implications and recommendations for fiscal policy.
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Public investments into tertiary education in 1996-2001 period and the estimation of their rates of return.
Kozár, Filip ; Klement, Josef (advisor) ; Barák, Vladimír (referee)
Presented bachelor thesis focuses on tertiary education in the Czech republic. The main aim of this thesis is to estimate rates of return from public expenditures on tertiary education in the 1996-2001 period. The practical part deals with the evolution of human capital theory and two alternative theories - signalling theory and theory of screening. The next part goes in the direction of theory of human capital investments and their measurment methods. The analytic part starts with analysis of the tertiary education sector in Czech republic, including its historical development and international comparison. The second chapter is based on model definition. The model is further used to estimate net present values, internal rates of return and payback periods of public investments into tertiary education. The analytic part ends with a brief discussion and the result comparison with other authors. In a simplified way it is worthwhile for the state to finance tertiary eduction, the only exception being female pedagogical sector graduates.
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Database for laboratories and exercises in the course Aircraft Manufacture
Horčička, Marek ; Löffelmann, František (referee) ; Klement, Josef (advisor)
This bachelor thesis dealts with a selected part of the database for laboratories and exercises in the course of Aircraft Manufacture. The first part consists of a basic overview of aviation materials and the conditions of their thermal processing. It is about the technology of heat treatment of steel and alluminium alloys. In addition, the substrates for profile and tube forming technology are presented. The whole bachelor thesis is elaborated in accordance with the content of the course in the subject Aircraft Manufacture.
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The introduction of unleaded fuels in aviation
Pilíšek, Lukáš ; Klement, Josef (referee) ; Šplíchal, Miroslav (advisor)
This bachelor thesis deals with fuels for air piston engine. The thesis is divided into two main parts. The first chapter describes problems of current lead fuels and influence of tetraethyllead on the octane number. The second chapter is dedicated to the development of unleaded fuels including factors which are limiting theirs introduction to the market.
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Hardenability of aluminium alloys and its experimental determination
Weiss, Andrej ; Jetela, Václav (referee) ; Klement, Josef (advisor)
The Diploma thesis deals with the verification of Jominy end-quench test when analysis of hardenability of aluminium alloys is considered. The problem was solved experimentally, by developing end-quench curves of selected grades of aluminium alloys. Degree of hardenability of alloy is hardness after complete strengthening heat treatment. Samples of aluminium alloys commonly used for aircraft structures were prepared and then subjected to end-quench tests in various quenchants. On the basis of performed experiments, suitability of Jominy end-quench test for comparison of hardenability of alloys was found. Part of the thesis deals with the creation of equivalent cooling rate diagrams using the developed end-quench curves.
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Utilization of information systems for monitoring of small transport aircraft operational parameters
Parýzek, Tomáš ; Klement, Josef (referee) ; Třetina, Karel (advisor)
This diploma thesis covers with the utilization of information systems for monitoring of small transport aircraft operational parameters focusing on mathematical and economical methods. The thesis contains overview of methods usable in various types of aircraft operation. It also deals with creation of Cessna 208B aircraft`s schedule of work. Network graphs are used for analysis purposes. The diploma thesis also includes methodology of information obtainment and requirements determination of information systems for monitoring of small transport aircraft operational parameters.
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Influence of aging on sandwich materials properties
Smékal, Aleš ; Löffelmann, František (referee) ; Klement, Josef (advisor)
The first part of the master’s thesis deals with sandwich materials. Starting with composition of parts which the sandwich panel is made of. The thesis continues with loading distribution and testing of entire sandwich panel. The impact of environment is considered as well. The second part is its goal – determine degradation of the properties of sandwich panels with metal sheets and core after 15 years aging in the common atmosphere and aging in moistheat and salt environment by experiment.
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Dark Web: Black market on the internet and its impact on the Czech national economy in the years 2011-2015
Nedvědová, Barbora ; Štípek, Vladimír (advisor) ; Klement, Josef (referee)
The main goal of this thesis is to analyse the influence of the Dark Web on the national economy of the Czech Republic between the years 2012 and 2014. The term 'the Dark Web' and basic elements, which are related to the internet black market, are analysed in the theoretical part of the thesis. The practical part of the thesis contains the estimation of the impact of the Dark Web on the national economy, particularly on national accounts, and other macroeconomic indicators such as GDP, tax colletion, the size of the grey market and the black market, employment and exchange rates. The estimation is based on the available data from both the Czech Republic and abroad. Time periods, in which the mentioned macroeconomic indicators from the Czech Republic are affected, are determined at end of the thesis. By using available data, it is possible to prove the influence of the Dark Web on the Czech national economy and on the mentioned macroeconomic indicators. For example, in 2014, the Dark Web accounted for less than 9 per mille of the GDP of the Czech Republic. Another conclusion is that the Dark Web contributed less than 0,1 % to the grey economy, and less than 2 % to the illegal economy. The internet black market accounted for nearly 8 per mille of the revenue of social security and health insurance.
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