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Assessment of runoff conditions on flow in the cadastral area of Dašice
Janovská, Michaela ; Vysloužilová, Lucie (referee) ; Uhmannová, Hana (advisor)
This thesis is aimed at assessment of drainage conditions at the river Loucna in the cadastral area of Dasice. The examined section is 3,88 km long and runs through out of the city and in the city of Dasice. On the left bank of the river there are several historic buildings that are potentially at risk for 100 years of flow. Capacity assessment is performed using the 1D mathematical program HEC - RAS in which the flow model is created and the calculation of the flow rates for individual N - year flows. On the basis of the results of the program is conducted conceptual desing of flood protection measure. At the same time is conducted conceptual desing of fish ladder on the weir and a sluice closure on the intake for the race.
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Assessment of status of the watercourse in the basin of the Povodi Dyje
Janovská, Michaela ; Duchan, David (referee) ; Uhmannová, Hana (advisor)
This thesis was aimed at assessing the capacity of the current state of the river Oslavany in the urban area Oslavany. Weighted section is located near the football field and a castle, which was built in 1225 and in case of passing 100 - year flood is the flood area. Assessment of the capacity of the stream was performed using the 1D mathematical program HEC- RAS in which based on oriented transverse profiles and beats in the field, the flow model was developed and assessed for the indi-vidual N-year flows. Based on the results of the program HEC- RAS was conducted conceptual design of flood protection measures in the area of interest.
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Tackling Cybersecurity Threats to the EU Space Programme: Regional and International Cooperation
Janovská, Michaela ; Pražák, Jakub (advisor) ; Kučera, Tomáš (referee)
Cyber-attacks to various sectors have been on the rise over the past decade, and the EU space programme is not exempt to these. Due to many European industries and sectors relying heavily on space-enabled systems, maintaining the security and availability of EU space is key for the proper function and prosperity of the EU and its competitiveness. With the emergence of New Space, space-based systems are becoming more connected to the internet, creating more vulnerabilities which can be exploited by cyber-attackers. However, space-based objects are not the only segment of the EU space programme that are vulnerable to exploitation. Space cybersecurity has not been on the forefront of researcher's focus, until now. The past decade has shown a shift in attention towards the issue of space cybersecurity, but this mainly focuses outside of the EU. This research aims to find out how cyber threats to the EU space programme have evolved throughout the past decade and how they have been tackled within the EU. Regional and international cooperation on the matters of space cybersecurity of the EU space programme will be explored through the optic of identity building through shared threat. Research interviews with experts from the field of EU space programme cybersecurity shed light on the current situation,...
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Low temperature CO oxidation on bimetallic structures
Hanyš, Petr ; Nehasil, Václav (advisor) ; Janovská, Michaela (referee) ; Plšek, Jan (referee)
Title: Low temperature CO oxidation on bimetallic structures Author: Petr Hanyš Department: Department of Surface and Plasma Science Supervisor: Doc. RNDr. Václav Nehasil, Dr., Department of Surface and Plasma Science Abstract: Bimetallic system Sn-Rh in the form of the model Sn/Rh(111) system, supported Rh+Sn/Al2O3 and Rh/SnO2 clusters and Rh/SnO2 and Rh+Sn/Al2O3 powder samples was studied using synchrotron radiation photoelectron spectroscopy (SRPES), X-ray photoelectron spectroscopy (XPS), thermal desorption spectroscopy (TDS), molecular beams (MB), transmission and scanning electron microscopy (TEM, SEM), powder X-ray diffraction (XRD) and high pressure reactor within the framework of the study. It was found that formation of Sn-Rh alloy influences catalytic properties of Rh by lowering CO adsorption energy and capacity. It was also found that presence of Rh in this bimetallic system mediates reversible oxidation/reduction of Sn/SnO2, whereas Sn oxide acts as an oxygen reservoir for low temperature CO oxidation. Keywords: bimetallic systems, rhodium, tin, low temperature CO oxidation
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Vliv ročního období na počet somatických buněk v mléce dojnic
Janovská, Michaela
The diploma thesis was focused on the observation of various factors that are closely related to the number of somatic cells in milk of dairy cows. In particular, the season, the month, the order and stages of lactation and their relation to somatic cells, but also to the individual components of milk, were tested. The information was obtained from the performance and self-monitoring of Farmers farm for one year. As regards the influence of the season, the highest number of somatic cells was found in winter (537 thousand) and lowest in spring (365 thousand), but the difference was not statistically conclusive. The influence of the lactation sequence (min. 257,000 on the first lactation and max. 747,000 on the fifth lactation) and the lactation stage influence (min. 382,000 to 100 days of lactation and max. 557,000 over 401 days of lactation) was equally inconclusive ). A higher number of somatic cells in milk was associated with its lower production but higher protein content. The behavior of cows was substantially more balanced in the stable where the proportion of cows lying ranged from 60 % to 67 % than in grazing where it ranged from 3 % to 69 %.
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Assessment of runoff conditions on flow in the cadastral area of Dašice
Janovská, Michaela ; Vysloužilová, Lucie (referee) ; Uhmannová, Hana (advisor)
This thesis is aimed at assessment of drainage conditions at the river Loucna in the cadastral area of Dasice. The examined section is 3,88 km long and runs through out of the city and in the city of Dasice. On the left bank of the river there are several historic buildings that are potentially at risk for 100 years of flow. Capacity assessment is performed using the 1D mathematical program HEC - RAS in which the flow model is created and the calculation of the flow rates for individual N - year flows. On the basis of the results of the program is conducted conceptual desing of flood protection measure. At the same time is conducted conceptual desing of fish ladder on the weir and a sluice closure on the intake for the race.
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Faktory ovlivňující agresivní chování psů
Janovská, Michaela
The aim of the thesis was to determine the occurrence of aggressive behavior in dogs. The potential factors that may affect canine aggressive behavior towards people and dogs were tested in the study. The information was collected by means of questionnaires for two years. The first chapter describes the canine history and the use of the dog. Other chapters deal with the analysis of potential factors affecting the dog aggression. Results suggest that more factors may affect aggressive behavior in dogs.
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Low temperature CO oxidation on bimetallic structures
Hanyš, Petr ; Nehasil, Václav (advisor) ; Janovská, Michaela (referee) ; Plšek, Jan (referee)
Title: Low temperature CO oxidation on bimetallic structures Author: Petr Hanyš Department: Department of Surface and Plasma Science Supervisor: Doc. RNDr. Václav Nehasil, Dr., Department of Surface and Plasma Science Abstract: Bimetallic system Sn-Rh in the form of the model Sn/Rh(111) system, supported Rh+Sn/Al2O3 and Rh/SnO2 clusters and Rh/SnO2 and Rh+Sn/Al2O3 powder samples was studied using synchrotron radiation photoelectron spectroscopy (SRPES), X-ray photoelectron spectroscopy (XPS), thermal desorption spectroscopy (TDS), molecular beams (MB), transmission and scanning electron microscopy (TEM, SEM), powder X-ray diffraction (XRD) and high pressure reactor within the framework of the study. It was found that formation of Sn-Rh alloy influences catalytic properties of Rh by lowering CO adsorption energy and capacity. It was also found that presence of Rh in this bimetallic system mediates reversible oxidation/reduction of Sn/SnO2, whereas Sn oxide acts as an oxygen reservoir for low temperature CO oxidation. Keywords: bimetallic systems, rhodium, tin, low temperature CO oxidation
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Study of catalytic properties of metal-ceroxide system
Ševčíková, Klára ; Nehasil, Václav (advisor) ; Janovská, Michaela (referee)
System of cerium oxide and rhodium is used extensively in automotive emission control as a material suited for three-way catalysis. The prime for the activity of this catalyst is the oxidation state and a structure of CeOx. This study is focusing on CO oxidation and reactivity of the systems composed of polycrystalline layers of cerium oxide prepared by magnetron sputtering which approach well the real catalysts with their chemical and structural properties. Rhodium was evaporated on various CeOx layers differing in the oxygen concentration. X-ray Photoelectron Spectroscopy (XPS) was used to characterize an electronic and chemical state of a surface. Its reactivity toward CO was observed by Temperature Programmed Desorption (TPD) and Molecular Beams (MB). During steady - state reactions of CO and O2 molecular beams in temperature interval of 300 K - 770 K, there were observed three reaction mechanisms of CO2. Through the developement of reactivity of a catalyst caused by changes of partial pressure of O2 and by using isotopic labeled 13C16O, we can distinguish contributions of separate mechanisms to the total yield of CO2 and suggest the process of reactions. Polycrystalline cerium oxide plays the kye role due to its ability to release and adopt oxygen and due to the facility of oxygen migration through the...
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