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Long-term Unemployment . The Burden of the Czech Labour Market
Hněvkovský, Jan ; Mertlík, Pavel (advisor) ; Lešanovská, Jitka (referee)
This thesis focuses on the long-term unemployment in the Czech Republic. The first part is devoted to methodology of measuring the unemployment. In particular, it focuses on differences between rate of unemployment published by ČSÚ (Eurostat) and rate of registered unemployment which is published by MPSV. The content of the second part is demography of the Czech Republic, especially features which are relevant to structural restrictions on labor market. Hence, the educational and age structures of the Czech Republic are analysed. The third part is divided into two sections. The first section deals with the long-term unemployment at the aggregate level. At first, evolution on the labor market in the last two decades is outlined. Then the structural and cyclical unemployment are separated from the overall unemployment. At last, flexibility of the labor market is examined. The logic of the microeconomic section lies in analysing strategies of long-term unemployed. The thesis ends with the conclusion offering the summary of the gained results. 1
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Low level measurement
Roubal, Zdeněk ; Lazar, Josef (referee) ; Sládek, Petr (referee) ; Steinbauer, Miloslav (advisor)
The doctoral thesis presents methods for low-level measurements, which are exemplified by the general measurement of air ion concentration. Within the first section, the author progressively identifies certain critical effects influencing the concentration of air ions, and these effects are to be considered in evaluating the uncertainty of the measured concentrations. Thus, the thesis aims to provide a systematic description of the procedures and requirements related to low-level measurements; the proposed description then involves a discussion of the process reliability requirements, namely the factors of repeatability, elimination of errors, and definition and describability of measurement uncertainties. Such methodology facilitates, among other activities, the long-term monitoring of air ion concentration in extreme environments, including caves or spaces characterized by high temperatures and humidity. The use of common methods for determining the air ion mobility spectrum is accompanied by a number of disturbing effects, such as spurious fluctuation in the concentration of air ions in time. The experimental section of the thesis describes the testing of different configurations of the measuring device (a collecting electrode and a polarization capacitor); at this stage, we seek the most advantageous distribution of the electrostatic field in the sensor – a Gerdien tube. The systematic suppression of the influence of spurious fluctuations in air ion concentration during the measurement of saturation characteristics is carried out with the least-squares numerical method (as a supporting element), a hybrid technique to describe and evaluate the experimental model. In the second part of the thesis, the methodology of low-level measurement is complemented with procedures for the measurement of freezing potential. This latter domain, as an overall experimental approach applicable during phase changes of the sample, has hitherto not been sufficiently characterized from the metrological perspective, in an up-to-date manner; several subregions of the said domain remain somewhat obscured and deserve significantly more attention. In the given context, this thesis systematically considers a problem where comparable measurement results produced by multiple authors are not available. The measuring methodology proposed herein was utilized in applied research to facilitate the fabrication of an apparatus for the experimental measurement of freezing potential in pre-defined samples; the obtained results then lead us to conclusions with respect to the evaluation of effects that cause differences in the measured data, and the results can be further compared with those obtained by other researchers investigating the given segment of the problem.
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An Extended Model of a MEMS Gyroscope: Design and Identification
Vágner, Martin ; Sopata,, Milan (referee) ; Tůma, Jiří (referee) ; Beneš, Petr (advisor)
The thesis is aimed on measurement and modeling of MEMS gyroscopes based on input-output characteristics. The first part briefs the state of the art. The second part is dedicated to measurement methodology. Critical points and sources of uncertainty are discussed and evaluated using measurements or simulations. The last part shows key characteristics of MEMS gyroscopes based on the survey of a group of different sensor types. The results have revealed significant influence of supply voltage that causes bias drift of the gyroscope and bias drift of the internal temperature sensor. The error can be comparable to temperature drift; however, this effect is not addressed in the literature. The second observed effect is temperature dependency of angle random walk. In the last part, a general model of a MEMS gyroscope is rewritten to reflect observed effects. Moreover, the structure is selected to be easily extendable and the coefficients are expressed to allow a comparison of nominal parameters of different sensors.
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Effect of engine load on the output parameters of the tractor kits
Paulmichl, Roman ; Svída, David (referee) ; Bauer, František (advisor)
The thesis deals with the current situation in the construction of tractors, particularly engines and accessories. The work includes a methodology for measuring tractor rigs in traffic as well as methodology for plough/plow kits measuring. The measured values were tabulated, graphically presented and analysed. The thesis provides an overview of the issue of the combustion engine load placed on the engine by working conditions in transport, during primary soil tillage with different modes of operation of the tractor set. The thesis aim is to find out the practical effect of the engine load on the monitored parameters and to indicate possibilities for achieving higher efficiency in tractor units with minimum fuel performance
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Definition optimal parameters for purposes rigiceity of bonded connections.
Janečko, Ondřej ; Marková, Petra (referee) ; Pernikář, Jiří (advisor)
In Project is motion methodology optimal of the number of metering given test standard FINAT FTM/2 for adhesive tape, to method was reliable and reproducable. Accent has to be laying on exact progress and fundamentals metering, that are inevitable testing specifications. Metering they are executive on special testing machine, what be calculated for exams tear. V our case with acts about take-off us election adhesive tape, that is of sticking on stainless steel laminae, definite by force. important factor for us they are standard deviation and variation coefficient.
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