The subject of this thesis is a discourse of the altitudinal component of topographic maps of the Member States of the European Union. The work is focused on the necessity of the system of altitude measurement and the reasons and methods of its representation in maps, explains the basic concepts, is engaged in the theory of the altitudes in general and presents the altitude systems. It discusses the historical and current methods of representation of the altitudes in maps in more detail and from a broader point of view. It is focused on the State map series of the Czech Republic and discusses the altitudinal systems of Europe, the countries of the European Union and the representation of the altitudes on topographic maps of these countries. Finally, it evaluates the comprehensibility and the clear arrangement of the methods used for the representation of altitudes in the available maps.

The thesis aims to analyze the altitude interpretation of the topographic maps of the U.S. and to compare them with Czech topographic maps. I have obtained the source materials for completion of the thesis during the Work and Travel exchange program in the U.S. in 2012, which also inspired me to deal with this thesis topic. The most important producer of U.S. topographic maps is the national company United States Geological Survey, which uses the U.S. customary units based on the Anglo-American measurement system that make a significant difference when interpreting the altitude of U.S. topographic maps and Czech ones. The fact that American society does not use the metric system very much, results in the use of map scales that are unique and very unusual for topographic maps. Another important producer is the company Army Map Service. Since the U.S.A. and the Czech Republic are both member states of North Atlantic Treaty Organization, the production of military topographic maps strictly adheres to the NATO standards.

This thesis is concerned with the automatic altitude estimation from a single landscape photograph. I solved this task using convolutional neural networks. There was no suitable training dataset available having information about image altitude, thus I  had to create a new one. To estimate human performance in altitude estimation task, an experiment was conducted counting 100 subjects. The goal of this experiment was to measure the accuracy of the human estimate of camera altitude from an image. The measured average estimation error of subjects was 879 m. An automatic system based on convolutional neural networks outperforms humans with an average elevation error 712 m. The proposed system can be used in more complex scenario like the visual camera geo-localization.

Title: Possibilities of Non-invasive Control of Hypoxic Training Objectives: To find out whether there is a statistically significant change in mood dynamics measured by the POMS questionnaire while staying and training in a natural hypoxic environment (LHTH), compared to staying and training in normoxy. To compare and verify other non-invasive methods of controlled training in natural hypoxia. Methods: The research has the character of a quasi-experiment with a plan of repeated measurements. As a method of data acquisition, questioning was carried out using a standardized POMS questionnaire, analysis of training documentation. In the selected persons heart rate measurements and analysis of blood biochemical examination records were also done. An additional interview was included. There are two case studies. Results: A statistically significant difference in mood states was observed in the second week of the training camp, when a naturally hypoxic environment reduced the Energy Index and increased the Total Mood Disturbance of athletes. Casuistic investigations did not find any correlation between athletes' reduced performance and changes in the morning resting heart rate or biochemical blood analysis. However, a correlation between the decrease in performance and the overall mood disorder was...

>Magister Scientiae - MSc / The fifth-generation mobile network (5G) is a new global wireless standard that enables state-of-the-art mobile networks with enhanced cellular broadband services that support a diversity of devices. Even with the current worldwide advanced state of broadband connectivity, most rural and low-income settings lack minimum Internet connectivity because there are no economic incentives from telecommunication providers to deploy wireless communication systems in these areas. Using a team of Unmanned Aerial Vehicles (UAVs) to extend or solely supply the 5G coverage is a great opportunity for these zones to benefit from the advantages promised by this new communication technology. However, the deployment and applications of innovative technology in rural locations need extensive research.

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京都大学 / 0048 / 新制・課程博士 / 博士(理学) / 甲第19507号 / 理博第4167号 / 新制||理||1598(附属図書館) / 32543 / 京都大学大学院理学研究科地球惑星科学専攻 / (主査)教授 家森 俊彦, 教授 田口 聡, 教授 余田 成男 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DGAM

Title: Possibilities of Non-invasive Control of Hypoxic Training Objectives: To find out whether there is a statistically significant change in mood dynamics measured by the POMS questionnaire while staying and training in a natural hypoxic environment (LHTH), compared to staying and training in normoxy. To compare and verify other non-invasive methods of controlled training in natural hypoxia. Methods: The research has the character of a quasi-experiment with a plan of repeated measurements. As a method of data acquisition, questioning was carried out using a standardized POMS questionnaire, analysis of training documentation. In the selected persons heart rate measurements and analysis of blood biochemical examination records were also done. An additional interview was included. There are two case studies. Results: A statistically significant difference in mood states was observed in the second week of the training camp, when a naturally hypoxic environment reduced the Energy Index and increased the Total Mood Disturbance of athletes. Casuistic investigations did not find any correlation between athletes' reduced performance and changes in the morning resting heart rate or biochemical blood analysis. However, a correlation between the decrease in performance and the overall mood disorder was...

High altitude is one of the most extreme environments experienced by terrestrial mammals due to both low ambient temperatures and oxygen availability. Deer mice native to high altitude have a greater thermogenic capacity in hypoxia compared to a lowland population, likely as a consequence of both genetic adaptations and phenotypic plasticity. To understand the adaptive variation in phenotypic plasticity, F1 generation lab-reared mice were acclimated to chronic warm-hypoxia, cold-normoxia, and cold-hypoxia. Acclimation led to equal increases in thermogenic capacity in hypoxia for all stressors in high altitude deer mice. Low altitude mice also increased their thermogenic capacity after acclimation, with a distinct increase after acclimation to cold-hypoxia. The thermogenic capabilities of the high and low altitude mice tested in hypoxia were equal, suggesting that both populations of mice had reached a “metabolic ceiling”. Basal metabolic rate increased after acclimation to cold and cold-hypoxia. Nonshivering thermogenesis was not affected by acclimation or altitude ancestry. Shivering thermogenesis contributed 70 to 80 % of total heat produced during VO2summit across all acclimations, and in both populations. VO2summit in hypoxia was supported by lipids in deer mice even though carbohydrates would provide an oxygen saving advantage. Also, rates of lipid oxidation increased after acclimation to cold, and cold combined with hypoxia in the high altitude population. Together these findings suggest that the increased thermogenic capacity of the high altitude wild mice is based both on differences in phenotypic plasticity, and on differences in genotype from the low altitude mice. Adult phenotypic plasticity is pivotal in the thermogenic capabilities of both populations, and it is likely that developmental plasticity also plays an important role. / Thesis / Master of Science (MSc)

The development and implementation of silicon carbine (SiC) devices is steadily increasing facilitating the electrification of aircrafts. In this thesis, a printed circuit board (PCB) based heavy copper busbar design and verification are introduced for a SiC based 250 kW multiphase drive system operated at 40,000 ft. Finite-element analysis (FEA) simulation studies of the PCB busbar are conducted to optimize the electric field intensity. Busbar modeling technic is also discussed to derive the current distribution and extract the loss. The measured partial discharge inception voltage (PDIV), switching transients and converter-level validations are provided for insulation, thermal and commutation loop verifications. As the part of the inverter system, the integrated gate driver is designed with SPI communication to drive the wide bandgap SiC power modules. With feature of drain-to-source current sensing feature, the gate driver could also provide over-current protection to fast-switching SiC power modules. The converter level verification is performed under single, dual, and quadruple three-phase inverter system for aviation motor drive to evaluate the overall performance of the powertrain converter. The outcomes of this research contribute to the advancement of electric aircraft technology by leveraging the benefits of SiC devices and optimizing busbar design, providing valuable insights and guidelines for engineers and researchers involved in the development and optimization of power electronic systems for all-electric aircraft applications. / Master of Science / This research focuses on the design and verification of PCB (Printed Circuit Board) busbars for a multiphase SiC-based all-electric aircraft powertrain converter. Silicon Carbide (SiC) devices, known for their high efficiency and fast-switching capabilities, are used in the converter to enhance its performance. The goal is to develop an optimized busbar design that ensures efficient power distribution and minimizes energy losses in this advanced aviation powertrain system. The study explores different aspects of busbar insulation design and analyzes busbar current distribution and loss extraction using simulation and modeling techniques. Additionally, gate driver design and communication network are investigated to drive and protect the wide bandgap SiC devices and to ensure the overall performance of the powertrain converter. The converter level verification is also performed under single, dual, and quadruple three-phase inverter system for aviation motor drive. The findings of this research contribute to the advancement of electric aircraft technology, utilizing SiC devices and optimized busbar design, and provide valuable insights for engineers and researchers working on power electronic systems for electric aircraft applications.