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Rozvoj a aplikace digitální obrazové korelace
Jandejsek, Ivan
The presented work devotes to the methodology and related software development for Digital Image Correlation (DIC). DIC is used for experimental mechanics studies. It is the non-contact technique (Optical or X-Ray) that provides full-field and high resolution measurement of displacements and strains within an object subjected to loading.
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Tree stem diameter and the Moon: a detailed analysis of periodic relationships
Mikulecký, M. ; Střeštík, Jaroslav
Zürcher and Cantiani (Nature, 1998) reported "a strong correlation" between rhythmic fluctuations of diameter of spruce stem on one side and gravimetric lunisolar tides on the ohter. The relationship between stem diameter D and tidal force G has been tested by more exact biometrical means. The 75 diameter and gravity hourly values have been processed by the Halberg cosinor regression and by Bartlett cross-"correlation". The higher peaks of the stem curve are located at 0,7-2,8 hours later than the peaks of the inverted tides. The cross-"correlation" between D and G as the function of time lag shows a 24-hour periodicity with its maximal significant deviation from zero for G delayed after D by 4 hours.
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Finanční ohodnocení krásy krajiny - metoda CVM
Cudlínová, Eva ; Lapka, Miloslav
Evaluation of landscape amenity is not very common and relatively difficult from the economic point of view. In our case study focused on comparing aesthetic preferences of Czech and Japan respondents regarding rural landscape. We used the contingent valuation method. We also wanted to reveal the respondent’s preferences in a financial form. These preferences served us as quantitative indicator for an attestation of the respondent’s qualitative preferences. It seemed that a strong correlation between the aesthetical and financial evaluation exist in two extreme cases – respondents were not interested, or they were strongly involved in landscape amenity. A substantial difference occured between the Czech and Japanese respondents in the case of case of open or closed access to the landscape.
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Mediální masáž, aneb, Jsou opravdu defenzivní akcie tak výhodné v dobách krize?
Vataha, Jiří
The goal of this paper is to refute the fact that it is profitable, in times of economic crisis, or recession, to invest in defensive stocks of anticyclical industries. To refute this fact, I chose the defensive stock of the anticyclical service sector entertainment industry - Walt Disney Co. I will compare the development of these stocks with the developments in the capital market during the economic crisis of 2008/2009. With the aid of correlation and graphical comparisons of the stocks with the Dow Jones U.S. Broadcasting and Entertainment Index and Dow Jones Industrial Average Index, I have concluded that the above statement is incorrect. Shares in times of crisis behave with as much volatility as the market itself and correlates strongly with it.
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Determination of methotrexate and 7-hydroxymethotrexate by HPLC and correlation with imunochemical determination of total methotrexate
Suchánska, Iveta ; Dršata, Jaroslav (advisor) ; Kukačka, Jiří (referee)
The aim of this work was to verify the correlation at determination of methotrexate by high performance liquid chromatography and imunochemically determination of whole methotrexate. Methotrexate belongs to the chemotherapeutic agent commonly used in the treatment of acute lymphoblastic leukemia. Methotrexate was determined chromatographicly with UV detection at 303 nm after deproteinization with trichloracetic acid. Fluorescence polarization immunoassays of methotrexate was measured on TDx FLx analyzer. The data obtained were analyzed utilizing the PrismGraph Pad 5.0 software. The methotrexate measurements were evaluted employing nonparametric paired t-test (p-value <0,05). Our data indicate good correlation between methotrexate levels > 1 μmol/l determined by high performance liquid chromatography and fluorescence polarization immunoassays. While the concentration of methotrexate < 1 μmol/l measured by fluorescence polarization immunoassays were overestimated. This could be done because of cross reactivity with metabolites 7-hydroxymethotrexate and 2,4-diamino-N10 -methylpteroic acid. These metabolites could influence the determination of methotrexate, because of the close stuctural similarities.
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Zpracování a interpretace výnosových map jako podklad pro agronomické rozhodování
Širůček, Petr
Diploma thesis was focused on data yield map processing, their interpretation and analysis of relations with another spatial data. Aims of the work were identification error values, statistical process yield data and with help statistical methods evaluate correlation between yield map and another spatial data. Methods were based on gathering yield data with combine harvester during two years in corn and malting barley in conditions of farm. With using GIS and predefined tolls were removed error values from yield data and created yield maps. Subsequently, yield maps were analyzed with vegetation index NDVI, digital elevation model (DEM), sensor measurements of soil electrical conductivity and historical yield maps. In results was achieved removing from 11,3 to 13,8 % yield points in average, increasing of average yield from 3,6 to 4,7 % and decreasing of variation coefficient between 7,0 and 8,6 % with comparing original yield data and depending on planting crops during data yield processing. In case of evaluation of relations between yield map and NDVI obtained from satellite remote sensing was achieved moderately correlation by corn (r = 0,44) and malting barley (r = 0,65) in average depending on times of imaging and vegetative phase of the crop. In the evaluation relations between yield maps and DEM and slope was achieved weak and very weak direct and indirect correlation. Likewise, by soil electrical conductivity and yield was achieved very weak to negligible correlation. Conversely, the highest correlation was achieved between yield map and historical yield map (r = 0,63) in average. Obtained information serve as starting point for making agronomy decisions in conditions of particular farm in case of replacement of creating yield maps by prediction of yield based on another spatial data.
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Tests of thermal and radiation embrittlement of reactor steel 15CH2MFA
Dvořáková, M. ; Kadlecová, Jana ; Konop, R. ; Tomáš, Ivan ; Vértesy, G.
Results are presented of mechanical destructive and magnetic nondestructive tests of the 15Ch2MFA steel, used for pressure vessels of the VVER40 reactor type. Two series of samples were tested: (i) samples, embrittled by a special thermal processing, and (ii)samples, embrittled in a reactor by high fluences of neutron radiation. Results of mechanical impact Charpy tests are compared with results of Magnetic Adaptive Testing carried out on the two sample series. The existence of mutual correlation between the two types of examination indicates alternative of replacement of the mechanical destructive tests of classical surveillance samples by magnetic tests, which are nondestructive.
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Vztah efektivní sazby daně z příjmů fyzických osob a HDP v České republice
Crhová, Jana
This bachelor thesis deals with the behaviour of the effective income tax rate of individuals in the Czech Republic and how this rate is related to the economic de-velopment of the country from 1993 to 2013. Tax laws for calculating the effective tax rate and correlation effective tax rates and GDP are used to determinate this fact. Based on these results it is determined that the effective tax rate on personal income of level of the average wage is correlated with GDP and thus this condition corresponds to theoretical premises posed on taxes in connection with the development of the economy.
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Vztah akademické poctivosti a ekonomických ukazatelů států EU
Surovec, Martin
The aim of the bachelor thesis is to determine whether there are correlations between economic indicators of EU countries and academic honesty, and to explain the existing correlations. In the first part the author focuses on the issue of academic dishonesty and economic indicators, which form the basis for the practical part. In the practical part are used data from the project IPPHEAE and correlation analysis of economic indicators and academic honesty just as sub-criteria of academic honesty is carried out. The result of the research is confirmation of the existence of correlations and their clarification. The most interesting result was a negative correlation of academic honesty and a difference between wages of secondary educaated and university-educated people.
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