Kvalifikační práce
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Zobrazují se záznamy 661-720 z 10923
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Low temperature plasma and nanoparticles: effects of gas flow and surfaces
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 28. 6. 2023Title: Low temperature plasma and nanoparticles: effects of gas flow and surfaces Author: Ing. Suren A. Ali-Ogly, B.Eng Department / Institute: Department of Macromolecular Physics / Charles University Supervisor of the ... -
Spektroskopické studium verteporfinu v liposomech
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 8. 6. 2023The diploma thesis examined the photochemical properties of verteporphin in liposomes. Absorption and fluorescence spectroscopy and time-resolved detection of singlet oxygen generated by verteporphin were used. The kinetics ... -
Studium preciptačních procesů v systému Mg-Y a Mg-Y-Nd
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 20. 6. 2023The aim of this bachelor's thesis was to investigate the precipitation processes in the binary system Mg-Y and the ternary alloy Mg-Y-Nd using positron annihilation spect- roscopy and hardness testing, where we measured 2 ... -
Adaptive generated encounters in a rogue-like role-playing video game
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 7. 2. 2023We want to provide a video game player with a fun, unique, challenging experience. That may not be the case in games involving a lot of possibilities or randomness. This thesis introduces an algorithm for a procedural ... -
A Symmetric Homophily-preserving Opinion Diffusion Model
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023We define and study a symmetric homophily-preserving opinion diffusion model on clusters of voters. This model is symmetric, which means that clusters of voters influence each other. The model is also homophily-preserving, ... -
RSA v číselných telesách a na mriežkach
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023This thesis is focused on the RSA algorithm in number fields and on lattices. Specif- ically, we extend the work the authors Zheng and Liu in their article High Dimensional RSA. In the thesis we precisely describe all the ... -
ParsecCore: A parser combinator library in the C# language
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023In this thesis, we implement a parser combinator library in C# inspired by Parsec. Parser combinators refer to a style of parsing where a parser is modeled as function from string to some structured result. Afterward, ... -
Extension of web-based interface for protein binding sites prediction
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023Protein-ligand binding sites are positions on the protein structure where the protein interacts with other molecules. PrankWeb is a web server devel- oped at MFF UK allowing prediction of such places. These predictions are ... -
Simplicial depth
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 26. 6. 2023Depth functions play a crucial role in nonparametric statistics by generalizing orderings, ranks, and quantiles to multivariate data. In our thesis, we provide a comprehensive study of the classical and revised definitions ... -
Vývoj krystalové struktury materiálů (Er,Lu)2(Ti,Zr)2O7
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023The present thesis is focused on the development of a crystal structure of A2B2O7 materials, where A is a rare-earth element and B is a transition metal. These materials crystalize generally in four crystallography structures. ... -
Multikolinearita
Výsledek obhajoby: NEOBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2010)Datum obhajoby: 10. 2. 2010In our work, we explored multicollinearity problem from a complex point of view - from diagnostic methods to the solving of the problems which are caused by the multicollinearity. We compared the Least Squares method with ... -
Význačné hranice v okolí Marsu: magnetopauza a rázová vlna
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 8. 6. 2023The main objective of this thesis is to use the data measured by the MAVEN spacecraft and machine learning methods to develop models of the locations of bow shock and magnetic pileup boundary. Characteristic values of ... -
Automatická detekcia fake-news na slovenských textoch
Výsledek obhajoby: NEOBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 12. 6. 2023Fake news is a problem in recent years. This study focuses on detecting fake news written in the Slovak language using text classification methods. It is unique because it is the first to conduct such a comprehensive set ... -
Inverzní limity v kategoriích modulů
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 7. 6. 2023For a class of modules C, we study the class lim ←− C of modules that can be obtained as inverse limits of modules from C. In particular, we investigate how additional properties of the class C are reflected by properties ... -
Performance Comparison of ILP versus Logical Solvers on Bribery-type Problems
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023Integer Linear Programming (ILP) has proven to be a powerful tool for solving hard problems, particularly in computational social choice, where it has been used to address variants of the bribery problem. This problem ... -
Úloha replikácie indexov pomocou mier rizika
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023In this thesis, we will introduce various methods for measuring risk known as Value at Risk (V aR) and Conditional Value at Risk (CV aR). We will use their properties and formulations in deriving a linear optimization ... -
Numerical approximation of the time-ordered exponential for spin dynamic simulation
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 9. 6. 2023We describe, discuss, and compare classes of methods for the numerical solution of non-autonomous linear ODEs using problems coming from Nuclear magnetic resonance (NMR) spectroscopy with Magic-angle spinning (MAS) as case ... -
Emergence of irreversible dynamics by the lack-of-fit reduction
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 9. 6. 2023The thesis studies theories of dimensional reduction on the example of the Kac- Zwanzig (heat bath) model. The studied methods are the Mori-Zwanzig projection for- malism and the lack-of-fit reduction, both applied for two ... -
Bimetalické katalyzátory na bázi Pt pro palivové články s polymerní membránou připravené magnetronovým naprašováním
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 8. 6. 2023The use of fossil fuels has started a climate change connected to risks such as extreme heatwaves, rising sea level, extinction of species and other catastrophes. That's why it's necessary to move to carbon neutral economics. ... -
Viscoelastic rate-type fluids: a study of the effect of stress diffusion by means of numerical simulations
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 7. 6. 2023Describing viscoelastic fluids is a difficult task, as the viscoelastic phenomena are not fully understood. This work follows a method for deriving viscoelastic models that accu- rately capture the behavior of fluids with ... -
Testování nové kamery na E152 - hvězdná proměnnost
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 15. 6. 2023E152 telescope will be used for future characterization of exoplanets and so testing of its instruments is needed along with construction and testing of a pipeline, which is going to process acquired frames. This pipeline, ... -
Analýza blockchainu používaného pro Bitcoin
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 12. 6. 2023This thesis deals with the analysis of the blockchain used for Bitcoin. Blockchain is a distributed database of all transactions made with this cryptocurrency. Its public availability represents the possibility of examining ... -
Počítačové modelování inhibice SARS-CoV-2 proteázy
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 13. 6. 2023This work deals with various methods of computing free energy using molecular dy- namics simulations to study the inhibition of biological macromolecules and to identify potential drugs. Specifically, the possibility of ... -
Bagging a regresní stromy v individuálním rezervování škod
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 15. 6. 2023This diploma thesis focuses on the application of classification and regression trees, as well as bootstrap aggregating, to individual reserving in insurance. In the first part, we provide a summary of the theory and ... -
Testy nezávislosti v kontingenční tabulce
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023In this thesis we investigate various methods for testing independence in two-way contingency tables. The methods are explained, their advantages and drawbacks are dis- cussed, and we also illustrate the methods on an ... -
Pólyov-Aeppliho proces
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023Táto práca je venovaná skúmaniu Pólyovho-Aeppliho procesu a zároveň Pólyovho- Aeppliho rozdelenia, ktoré sa v tomto procese využíva. Pri Pólyovom-Aeppliho rozdelení sú uvedené dva tvary pravdepodobnostnej funkcie - rekurzívny ... -
Studium elektronových přeskoků v systému konjugovaných molekul metodami kvantové mechaniky.
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023Mean lifetimes of the two lowest singlet excited states of linear conjugated polyenes from ethene to docosaundecaene were explored. The semiempirical OM2/MNDO me- thod using MRCISD computational level was used to perform ... -
Studium elektrických polí v karbidu křemíku
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023Silicon carbide (SiC) is due to its unique electrical and mechanical properties very important material for photonics and electronics. Hexagonal polytypes of SiC are being used as substrates for the growth of epitaxial ... -
Geodetická deviace
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023In the thesis, we derive the well-known equation of geodesic deviation, and then by relaxing one of the initial assumptions we obtain its generalized form. Next, we rewrite the generalized equation in an invariant form ... -
Škodní inflace v pojištění aut
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023This thesis explores the practical use of generalized linear models. The aim of the thesis is to analyze the claims inflation for Motor Third Party Liability Insurance. For this purpose, current data from a Czech insurance ... -
Struktura zobecněných Pythagorejských trojic
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 28. 6. 2023The motivation for our thesis is to describe generalized of Phytagorean triples. We convert this problem into the problem of finding a solution of the equation |x2 +Dy2 | = z2 . The goal of this thesis is to prove in detail ... -
Klasifikační problémy z lineární algebry a reprezentace toulců
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 28. 6. 2023This thesis deals with the description of categories of finite-dimensional representati- ons of quivers. Its aim is to present a classification of indecomposable objects in this category for quivers whose underlying graph ... -
Off-diagonal ordered Ramsey numbers
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 14. 6. 2023We study ordered Ramsey numbers, an analogue of the classical Ramsey numbers for graphs with linearly ordered vertex sets. Inspired by a problem posed by Conlon, Fox, Lee and Sudakov, we focus on ordered Ramsey numbers of ... -
Předpovídání vývoje cen kryptoměn
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 6. 6. 2023The thesis examines how to use trading strategies and indicators from stock markets, that are well-known and used for years, to the new and dynamically growing crypto markets. The goal of the thesis is to design and implement ... -
Spacetimes with black holes
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 14. 6. 2023In this thesis, we study exact black hole spacetimes of algebraic type D, which are a part of much wider Pleba'nski-Demia'nski class of solutions. We reformulate the well- known form of this metric and obtain new improved ... -
Cykly translací v souvislých quandlech
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 28. 6. 2023In the thesis, we are dealing with Hayashi's conjecture in the context of conjugation quandles. We analyze their connectedness and, by using ideas presented by David Stanovský and Petr Vojtěchovský in the proof of the claim ... -
Physical properties of layered materials with Van der Waals bond
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023This thesis focuses on the study of van der Waals materials predicted to be high- temperature ferromagnets and methods of the influence of the value of magnetic ordering temperatures. We focused on the well-known van der ... -
Semi-inclusive DIS studies at COMPASS experiment
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023This bachelor's thesis focuses on exploring the SIDIS data collected at the COMPASS experiment in 2022. The beginning of the thesis briefly summarises the theory, including the SIDIS, the definition of the kinematic variables ... -
Algebraic calculation of atomic integrals
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023The objective of this thesis is the examination of a novel method for the calculation of spectra of helium-like ions. In the helium atom, the electron-electron interaction is difficult to account for as it often leads to ... -
Decoding of Reed-Solomon Codes
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023Reed-Solomon codes are a typical example of MDS codes, that are frequently used in practise. In this thesis, we go over three different algorithms of decoding these codes, including the initial view from the original ... -
Simulácia odstránenia kozmického odpadu pomocou aerodynamického odporu
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023The amount of space debris in orbit is increasing, and various initiatives are being undertaken to control it. In this paper, we present an active method of removing space debris that is 1 cm in size. It is based on creating ... -
Vývoj, implementácia a testovanie algoritmov pre meranie elektromagnetických signálov detegovaných na palube stratosférického balóna nad búrkovými oblasťami
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023In this work, we focus on the application of machine learning techniques to study radio recordings of lightning discharges. Our goal was to develop an algorithm that could autonomously detect and classify different types ... -
Studium růstu oxidu železa na povrchu oxidu ceru
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023Cerium oxide (ceria) is widely used catalytic material known for its oxygen storage capacity. Iron-modified ceria-based catalysts find applications in various reactions, such as the oxidation of CO or NO. However, the ... -
Vizualizácia výsledkov SMT riešičov
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023Nowadays, SMT solvers are used for solving various problems in multiple fields. Therefore, it makes sense to optimize their speed depending on the size and type of the problems. However, going over and comparing results ... -
Deformace Venuše v důsledku změny povrchového zatížení
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023Analysis of Venus' topography, geoid and other orbital measurements pinpoints two re- gions considerably different from their surroundings. Regions are Ishtar Terra and western parts of Aphrodite Terra. These regions are ... -
Virtuální souborový systém v uživatelském prostoru
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023This thesis presents a custom Virtual File System (VFS) built with C++, using a custom wrapper for the FUSE library. The VFS is modular in design, facilitating easy extension with new features. Two prototype modules for ... -
Studium interakce jednoduchých organických molekul s povrchem oxidu ceru
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023In this work we prepare well defined thin epitaxy layers of cerium oxide (CeO2) and cerium oxide with nanoparticles of platinum (CeO2/Pt) on the Cu(111) substrate. The surface was characterized before exposition by ethanol ... -
Web page analyzer for scraping
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023Web scraping is a technique used for a variety of applications to extract data from the web. To create a scraper, a developer needs to perform an analysis of the scraped website using tools like web devtools or Postman. ... -
The origin of Jupiter Trojans
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023The Jupiter Trojans are a group of at least 12, 000 asteroids located in the vicinity of the Lagrange points L4 and L5. There are several theories for the origin of Trojans, such as the chaotic capture during the 1:2 ... -
Umělá inteligence pro hru Hanabi
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 29. 6. 2023The Hanabi game is currently very popular for the development of various Artificial Intelligences (AI). This popularity is mainly based on the fact that Hanabi is stochastic, possible to play in multiplayer, and mainly ... -
Klimatické klasifikace pro území České republiky
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 20. 6. 2023This bachelor's thesis discusses climate classification of the Czech Republic territory, providing an overview of the existing climate classifications used for the area. The concept of satellite data processing is presented, ... -
Kellyho kritérium a Bayesovská statistika
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 26. 6. 2023The classic problem of the investor is the search for profitable investment opportu- nities. But how should an investor behave if he finds such an opportunity? The Kelly criterion, named after the American scientist J.L. ... -
Dwarf galaxies with active galactic nucleus
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 15. 6. 2023Title: Dwarf galaxies with active galactic nucleus Author: Barbora Adamcová Institute: Astronomical Institute of the Charles University in Prague Supervisor: RNDr. Jiří Svoboda, Ph.D., Astronomical Institute of the Czech ... -
Charakterizace množin kladného dosahu
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 23. 6. 2023The main source of this thesis is the article Sets with positive reach by the German mathematician Prof. Dr. Victor Bangert from 1982. In this paper, Victor Bangert gives a characterization of sets with positive reach as ... -
Zobrazovací metody pro technickou praxi
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 2. 2. 2023This master's thesis focuses on illustrative axonometric projections and representations of elementary solid figures and other objects in these projections. The first chapter is an introduction to projections and the ... -
Center-outward ranks and signs and their application in statistical tests
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 15. 6. 2023This thesis describes the theory of multivariate rank tests based on center-outward ranks and signs. The definition of the center-outward ranks and signs is based on the measure transportation problem and depends highly ... -
Hlídání galerie
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 6. 2023In this thesis, we study a classical problem in computational geometry, the Art Gallery Problem. The Art Gallery Problem originates from the question of what is the minimum number of guards required to see the entire ... -
Mixed Precision in Uncertainty Quantification Methods
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 9. 6. 2023This work is concerned with analysing and exploiting mixed precision arithmetic in un- certainty quantification methods with emphasis on the multilevel Monte Carlo (MLMC) method. Although mixed precision can improve ... -
Validace schématu mikrofyziky oblačnosti a srážek v numerickém modelu předpovědi počasí ALADIN
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 15. 6. 2023This thesis aims to validate the microphysics scheme in the numerical weather predic- tion model ALADIN. The first part is focused on the parameterization of hydrometeors and microphysical processes in various microphysics ... -
Identifikace neutrálních pionů na Future Circular Collider
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 12. 6. 2023Future Circular Collider (FCC) is a 100 km long particle collider to be built around the year 2040 in the CERN laboratory. The first stage of operation is going to be a lepton collider FCC-ee which aims to test the Standard ...