National Repository of Grey Literature 2,260 records found  1 - 10nextend  jump to record: Search took 0.10 seconds. 

Investigation of transformation processes in shape memory alloys based on monitoring acoustic emission activity
Landa, Michal ; Novák, Václav ; Blaháček, Michal ; Šittner, Petr
Stress induced martensitic transformation in Cu-based memory alloys were studied by AE methods. AE phenomena was used for nondestructive recognition of various transformation processes. Correlation of structural processes and accompanied AE activity in single crystals is shown.

Options for financing the operational costs of secondary schools
Moníková, Marie ; Marková, Jana (advisor) ; Mach, Václav (referee)
Final thesis analyzes financial sources of operating cost of secondary schools. Theoretical part is paid to competencies of the founder in funding of secondary schools and to competencies of schools head. There are explained technical economic terms from financing of secondary schools. In thesis is described process compilation of budget, summary of cash flow and explained problematic value added tax. Research part of final thesis is based on make survey. In survey I investigated, if schools are using all of the available sources for financing and if they have revenues in the main activity, if they operate an additional activity and in which domain, whether schools are payers of VAT. Survey was based on randomly asked high schools, established by the Region. Practical part of research investigation brings information about problems, which are presented in front of schools problems in financial are. Thesis served summary of allocation of funds high schools and explains the choices of raising funds for secondary schools.

Interaction between TiAl melt and coated oxide refractories
Dočekalová, Kateřina ; Dlouhý, Antonín ; Zemčík, L. ; Fiala, J.
The present study focuses on reactions between ceramic crucibles and molten TiAl intermetallics. Coating strategies are investigated that exhibit a potential in slowing down the decomposition of the crucible wall. Uncoated crucibles (system TiAl melt - Al2O3 crucible) and crucibles with the coat (system TiAl melt - CaO coat - Al2O3 crucible) were used in melting and casting experiments. The reference state of the coated crucible before the melting trial was also investigated. Results of the SEM, EDAX and X-ray diffraction analysis contributed to the identification of the reaction zone and its chemical composition. The melt contamination with oxide inclusions results from the erosion process in which individual components of the melt diffuse along grain boundaries of the refractory and activate chemical reactions that decompose the crucible wall. Assessment of thermodynamic parameters associated with the chemical reactions helped in identifying the nature of the erosion process.

Preventive activities in the second grade of elementary school from the point of view of their actors
PINDROCHOVÁ, Věra
This thesis is written on a theoretically empirical basis. It deals with primary prevention of risk behavior in schools, in particular secondary schools. The theoretical part of the thesis concentrates on the characteristic features of risk behavior and its primary prevention. It also concentrates on the relationship between the teacher and pupils, the specifics of class group, the principles of effective communication and class environment. The practical part of the thesis is based on the results of a questionnaire which provided information about pupils´ and teachers´ views concerning risk behavior, and preventative activities being carried out at selected schools in co-operation with external consultants. The aim of this practical part of the thesis was to investigate pupils´ and teachers´ attitudes to primary prevention.

Quality of lifestyle of students studying Philosophical faculty at University of South Bohemia.
GALDIA, Jiří
This thesis deals with the research quality of life of students studying the Faculty of Philosophy University of South Bohemia in the České Budějovice. In the form of an email questionnaire survey were contacted 915 students during the academic year 2012/2013. The questionnaire was produced by Doc. MUDr. Tatianou Kimákovou, CSc., from The Department of Medicine, UPJŠP in Košice, as a pilot study for The Czech Republic. The investigation is focused on health, nutrition, smoking, consumption of alcohol, substance abuse and physical activities. The results are subject of the discussion and compared with JU research and investigation of SZÚ for Czech population.

Studium vztahu mezi strukturou a pohyblivostí a určování sekundární struktury biopeptidů kapilární zónovou elektroforézou
Šolínová, Veronika ; Kašička, Václav ; Koval, Dušan ; Hlaváček, Jan ; Barth, Tomislav
Capillary zone electrophoresis (CZE) has been applied to the analysis, separation and physico-chemical characterization of insect oostatic peptides, enkephalins and dalargin, and their derivatives and fragments.

Speculation on oil markets and its impact on commodity's price
Melcher, Ota ; Taušer, Josef (advisor) ; Baláž, Peter (referee) ; Müller, Štěpán (referee)
This study aims to analyse the precrisis period on the oil markets with a primary objective of assessing the role of speculation in the commodity's price development and its volatility. First it depicts the rapidly increasing speculative activity on the futures market together with the parallel oil price surge. The speculation is initially proxied by non-commercial traders' positions and subsequently quantified by Working's T-index. The paper then uses speculative traders' positions and both spot and futures prices to test for Granger causality within the framework of VAR models. For the sake of consistency it also evaluates causal links between speculation and inventories level. Further the study investigates the speculation impact on volatility of oil prices by employing various approaches in volatility quantification including GARCH models. Contrary to expectations we find that the speculatio's impact on both prices and their volatility is rather insignificant. In the last chapter we therefore seek for an explanation of the oil price developments by examining the market fundamentals. The interaction of supply and demand finally gives substantial evidence for understanding the price developments in the precrisis period.

Experimental investigation of electromagnetic activity of living cells at millimeter waves
Jelínek, František ; Pokorný, Jiří ; Šaroch, Jaroslav
The direct detection of electric oscillations in biological cells can deliver strong evidence for Fröhlich's theory of coherent excitation in biological systems. A laboratory equipment fot the measurement of mm-waves interaction with yest cells is described.

The musicians in Czech aristocratic courts in the 16th and the beginning of 17th century
Matyášová, Josefína ; Šedivá Koldinská, Marie (advisor) ; Holý, Martin (referee)
The aim of the thesis is to describe a few aspects of aristocratic music groups and professional musician's lives in the 16th and the beginning of 17th century in Czech lands. It deals with their position in a society (which often depended on current employment), criminality and a regime, set by legal rules. Moreover, it focuses on the possibilities of period musical education and on the difference between conception of music as a science and as a pleisure of senses. It seems to be really topical in the Middle Ages and Early Modern Times too and may have influenced activities of patrons. A part of the thesis investigates national and financial situation in musical groups and their role within special organism of aristocratic courts. Finally, it copes with unclear related terminology.

Characterization and stabilization of pancreatin
Wurstová, Agáta ; Němcová, Andrea (referee) ; Obruča, Stanislav (advisor)
This work focuses on a study of enzyme mixture pancreatin, its characterization and subsequent encapsulation into liposomes. As a reference proteins bovine serum albumin and trypsin were used. Characterization of pancreatin consisted of two parts. The first part focuses on optimization of methods for the concentration determination by absorption spectrophotometry using basic methods for identifying proteins (Biuret method, Hartree-Lowry method and Bradford method). Moreover, UV spectrums of the protein were measured. As a method for identification of protein´s molecular weight, SDS-PAGE was used. To identify components of pancreatin, LPLC was employed in two modifications, ion-exchange chromatography and size exclusion chromatography. The second part is dedicated to the characterization of pancreatin as enzyme in terms of pH and temperature optimum for the enzyme activities of protease (pH 9, 8 and 50 °C), amylase (pH 7 and 40 °C) and lipase (pH 7 and 50 °C). The last part of this work aimed at an encapsulation of pancreatin into liposomes and DLS analysis of distribution of particles and their zeta potential. Liposomes did not spontaneously release encapsulated enzyme. To confirm that proteins were successfully entrapped into liposomes, their structure was disrupted by application of phospholipase D. In conclusion, liposomes can be utilized as delivery systems for native enzymes.