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Reverse Traceroute
Hrazdil, Radim ; Podermański, Tomáš (referee) ; Grégr, Matěj (advisor)
Tato práce se zabývá problematikou zjišťování zpětných cest v Internetu. Nástroj, který by byl schopen určit zpětnou cestu, by mohl být cenný v například v případech, kdy určitá část zákazníků pozoruje zvýšenou latenci při využívání služby. Klasickým nástrojem pro analýzu cesty k cílovému počítači je traceroute. Práce se detailně zabývá diagnostickým nástrojem traceroute a jsou diskutovány nejen jeho rozšíření, ale také nedostatky v sítích, kde se vyskytuje vyvažování provozu, a jejich možná řešení. Nicméně, pokud se problém nachází ve směru od zákazníků k poskytovateli služby, pak odhalení problému může být problematické. Dále je studován existující výzkum v oblasti zjišťování zpětných tras v Internetu a nástroje pro diagnostiku sítě. Součástí práce je navržení a implementace nástroje, který je schopen aproximovat zpětnou cestu s využitím vhodné RIPE Atlas sondy a získaná data dále analyzovat. Implementovaný nástroj byl testován na vytvořené topologii i v reálném provozu s využitím referenčního virtuálního serveru.
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Atlas of the Czech Republic for primary school
Břichňáčová, Eliška ; Opatřilová, Irena (referee) ; Plánka, Ladislav (advisor)
Diploma thesis deals with proposal conception prepare homeland book of maps Czech republic. Book of maps will determined for pupils 1. – 2. class primary school and serve at teaching hours of elementary technig. Pupils should get basic information about Czech republic and her continuity on Europe and world with this school tool. The first part of the thesis deals with the theoretical process of cartographic work. Part two describes the her practical execution. At the end of atlas functionality was verified among children at an primary school in Běrunice.
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Influence of parcellation atlas on quality of classification in patients with neurodegenerative dissease
Montilla, Michaela ; Lamoš, Martin (referee) ; Gajdoš, Martin (advisor)
The aim of the thesis is to define the dependency of the classification of patients affected by neurodegenerative diseases on the choice of the parcellation atlas. Part of this thesis is the application of the functional connectivity analysis and the calculation of graph metrics according to the method published by Olaf Sporns and Mikail Rubinov [1] on fMRI data measured at CEITEC MU. The application is preceded by the theoretical research of parcellation atlases for brain segmentation from fMRI frames and the research of mathematical methods for classification as well as classifiers of neurodegenerative diseases. The first chapters of the thesis brings a theoretical basis of knowledge from the field of magnetic and functional magnetic resonance imaging. The physical principles of the method, the conditions and the course of acquisition of image data are defined. The third chapter summarizes the graph metrics used in the diploma thesis for analyzing and classifying graphs. The paper presents a brief overview of the brain segmentation methods, with the focuse on the atlas-based segmentation. After a theoretical research of functional connectivity methods and mathematical classification methods, the findings were used for segmentation, calculation of graph metrics and for classification of fMRI images obtained from 96 subjects into the one of two classes using Binary classifications by support vector machines and linear discriminatory analysis. The data classified in this study was measured on patiens with Parkinson’s disease (PD), Alzheimer’s disease (AD), Mild cognitive impairment (MCI), a combination of PD and MCI and subjects belonging to the control group of healthy individuals. For pre-processing and analysis, the MATLAB environment, the SPM12 toolbox and The Brain Connectivity Toolbox were used.
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School Atlases for the Weak-sighted
Šplíchalová, Romana ; Fuxová, Dana (referee) ; Plánka, Ladislav (advisor)
The aim of this degree thesis is to create a brief summary of cartographic production for visually impaired people, to evaluate selected works and to create an Asthenopia School Atlas draft. Sample sheets showing an asthenopic map of Australia are included in the appendix of the degree thesis. The MicroStation application program was used for the atlas draft creation as well as for the creation of the Australia map sample sheets.
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Segmentation of soft tissues in facial part of mouse embryos from X-ray computed microtomography data
Janštová, Michaela ; Harabiš, Vratislav (referee) ; Chmelík, Jiří (advisor)
This diploma thesis deals with a segmentation of soft tissues in facial part of mouse embryos in Matlab. Segmentation of soft tissues of mouse embryos was not fully automated and every case needs a specific solution. Solving parts of this issues can provide valuable data for evolutionary biologists. Issues about staining and segmentation techniques are described. On the basis of accessible literature otsu thresholding, region growing, k-means clustering and segmentation with atlas were tested. In the end of this paper are those methods tested and evaluated on 3D microtomography data.
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Atlas of Military Districts in the Czech Republic
Hušnerová, Eliška ; Čábelka, Miroslav (advisor) ; Šára, Pavel (referee)
The main objective of this bachelor's thesis is to design and create a thematic Atlas of military districts in the Czech republic, including a map key. A sub-objective is to perform an analysis of the portrayal of military districts in the Czech republic on maps of the Stable Cadastre, the 3rd military mapping, aerial photographs from the 1950s and the current orthophoto. At the beginning of the thesis, a literature search on military districts is carried out, which is a necessary starting point for the creation of the thematic part of the Atlas of military districts in the Czech republic. The theoretical part follows, where the definition of military districts and their development is presented. It also includes a description of the functioning military districts of Boletice, Březina, Hradiště and Libavá, focused on history, natural conditions and current military use of the territory. The next part is devoted to the analysis of portrayal of military districts on old maps and aerial photographs. In the practical part of the thesis, methods of creating the atlas are described, which is followed by a discussion and conclusions, where the results of the thesis are summarized and possible improvements and extensions are discussed. Key words: Military district, thematic atlas, thematic cartography, ArcGIS
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Study of production of jets and dijets in Xe+Xe and Pb+Pb collisions at the ATLAS experiment
Krivoš, Martin ; Spousta, Martin (advisor) ; Contreras Nuňo, Jesús Guillermo (referee) ; Křížek, Filip (referee)
A hot and dense medium is created during the heavy-ion collisions, affecting the strongly interacting particles forming jets. This typically leads to a suppression of jet production in heavy-ion collisions compared to jet production in proton-proton collisions. A study of this suppression in a dijet system, i.e., in a system of two back-to-back jets, can shed light on the details of the parton energy loss process responsible for this suppression. This thesis presents a measurement of dijet momentum balance in Xe+Xe collisions at √ sNN = 5.44 TeV as measured by the ATLAS experiment at the LHC. Results were compared with the previous measurement of dijet momentum balance in Pb+Pb collisions at √ sNN = 5.02 TeV. A significant momentum imbalance was observed in the most central Xe+Xe collisions, and this imbalance was decreasing with decreasing nuclear overlap. The ratio of a pair nuclear-modification factor further quantifies the differences between the dijet suppression in Xe+Xe and Pb+Pb collisions. The results are consistent with those measured in Pb+Pb data when compared in classes of the same event activity and when taking into account a difference between the center-of-mass energy of the initial parton scattering process in Xe+Xe and Pb+Pb collisions. These results provide new input for the understanding...
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Atlas of Land Cover Changes in the Lake Most Area
Kryndlerová, Anna ; Čábelka, Miroslav (advisor) ; Lysák, Jakub (referee)
The aim of this bachelor thesis is to create atlas of landscape changes in Lake Most area. The partial goals include evaluation of landscape development within historical context, visualization of land cover structure in 1842, 1938, 1952, 1987 and 2021, and creatation of additional maps, graphs and tables to illustrate land cover development for the whole monitored period. The theoretical part explains the basic concepts related to landscape and land cover and describes the base data layers and methods for analysing and evaluating landscape changes. Furthermore, the rules, concepts and methods of thematic cartography are described. This is followed by the physical-geographical and socio-economic characteristics of Lake Most area and its historical development in regards to coal mining and reclamation. In the practical part, a suitable atlas creation method is proposed based on the acquired knowledge. The key part of the map creation process is working with historical base data layers. The output of the work is a printed atlas of landscape changes in the area of Lake Most, created in ArcGIS and InDesign softwares. Keywords: Land cover change, Visualisation, GIS, Lake Most, Atlas, Coal mining, Reclamation
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Internet Educational Atlas Focusing on Soil Arthropods
Dvořáková, Jana ; Mourek, Jan (advisor) ; Říhová, Dagmar (referee)
The main objective of this thesis was to create an educational website aimed at soil arthropods. It can be used primarily by teachers of biology and ecology, lecturers of extracurricular science education or by the students who are interested in this issue. This photographic atlas of soil arthropods consists of my own micro images obtained by the use of light and scanning electron microscope. The micro images are accompanied by text to each group of soil arthropods, which is divided into sections containing information about the systematic classification, anatomy and morphology, biology and importance, eventually representatives of the group. The atlas is accompanied by other materials usable in the classroom, such as didactic test, didactic game and proposals for group work, worksheet, field and laboratory work or educational presentations focused on soil arthropods. These materials can be downloaded from the website, along with the entire atlas of soil arthropods. The atlas is available on the following address: https://sites.google.com/site/pudniclenovci/. The review of the literature deals with the importance of arthropods in the soil and their mutual interactions. Then I describe the methods of study of arthropods (sampling, sample preparation for light and scanning electron microscopy and...
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