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Simulation of reliability indices of a 22kV urban distribution network with various outgoing feeder configurations
Semerád, Jiří ; Skala, Petr (referee) ; Blažek, Vladimír (advisor)
This work deals with simulation of the urban distribution network reliability. For the evaluation of these networks are used indicators of reliability which are described in the first part. Next methods of analysis and posibilities for capabilities reliability simulation of distribution network are described. The third part deals with the real value of the reliability of electricity distribution in Italy. These values are presented in tables and graphs. The last part is a simulation of the urban network. Effect of different configurations on the reliability of electricity supply are studied. Sensitivity analysis is done for failure rate and proportional of the number of sampling points; the simulated values are fiven in tables and graphically.
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Realistic Visualisation of Alcoholic Beverages Using Distributed Raytracing
Fabík, Jiří ; Maršík, Lukáš (referee) ; Polok, Lukáš (advisor)
This work is about a realistic visualization technique called raytracing. It studies its original form, its extensions and optimizations. Raytracing casts rays through pixels and follows their propagation in the scene, according to the physical laws. It enables rendering of correct shadows, reflections and refractions. Distributed raytracing serves for better visualization and advanced effects. One ray is replaced with a beam of rays that allows soft shadows, fuzzy translucency, depth of field and antialiasing. With the increasing number of rays, the render time rises as well, so it is needed to use some optimization techniques and tools. A way of using this rendering method for visualization of alcoholic beverages is also described.
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Uncertainty of indirect measurement of air flow
Rozsypal, Jakub ; Havlíková, Marie (referee) ; Šedivá, Soňa (advisor)
This semestral project deals with the measurement uncertainties, especially with regard to indirect measurements. There are basic information about the issue. Then there is theoretically analyzed and practically implemented calculate the uncertainty volumetric air flow speed multiple hole probe Annubar 485 in two ways. The first way is to calculate the uncertainty of the classical method and the second method is the determination of uncertainty using Monte Carlo methods.
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Alternative Methods for the Analysis of Structural Changes in Muscle Tissue
Kaspar, Pavel ; Hrabovský, Miroslav (referee) ; Adam, Vojtěch (referee) ; Grmela, Lubomír (advisor)
Tato disertační práce se zabývá tématikou analýzy strukturálních změn ve svalové tkáni a metodikou optického měření. I přesto, že existuje nezanedbatelné množství metod pro detekci konkrétních změn ve svalovině, především pak v konzumním mase, drtivá většina z nich se zaměřuje na jeden konkrétní proces a vyžaduje komplikované postupy a drahé přístroje. Předmětem prezentovaného výzkumu není tedy nalézt metody přesnější a specifičtější, než jsou ty již exitující, ale raději zvolit alternativní přístup k problematice. Součástí je pak i snaha najít možnosti jak obejít technologické nároky moderních postupů a přitom se přiblížit co nejvíce jejich informačnímu přínosu. Za tímto účelem je potřeba mít dostatečné teoretické znalosti a experimentální zkušenosti především v oboru fyziky, optiky a postupů měření, ale také široké povědomí o problematice biologických tkání a procesů v nich probíhajících. Na základě získaných informací a pochopení pochodů ve svalové tkáni jsou navrhnuty a testovány tři rozdílné přístupy. Vytvořené metody pracují s fotony v transmisním i reflexním uspořádání. Pomocí pozorování změn absorpce, rozptylu a polarizace světla po interakci se vzorkem svalové tkáně jsou posouzeny jeho další optické vlastnosti především index lomu a optická anizotropie. Identifikace změn optických vlastností vzorků za různých podmínek umožňuje společně se simulací Monte Carlo posoudit rozdíly mezi vzorky čerstvými, starými, sušenými a jednou či dvakrát zmraženými a rozmraženými.
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Theory and Applications of Monte Carlo Methods
Hruda, Petr ; Šimek, Václav (referee) ; Bidlo, Michal (advisor)
This bachelor thesis deals with applications of Monte Carlo methods on various problems. In particular, Metropolis algorithm and Simulated Annealing were applied on optimization of Traveling Salesman Problem and the problem of graph coloring. Moreover, "traditional" Monte Carlo approach was utilized for statistical analysis of electronic circuits in which the values of components exhibit random variations with a given tolerance. The results are evaluated for different setups of Monte Carlo methods.
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The Evaluation of the Investment Project in the Selected Company
Peterková, Marcela ; Bulička, Pavel (referee) ; Luňáček, Jiří (advisor)
The goal of this diploma thesis was to evaluate the complex investment project of modernization of production halls selected companies. The literature search methods are described, which were subsequently applied to the actual calculations on the basis of which were compiled cash flows of investment, determined discount rate calculations performed indicators selected from among the methods of static and dynamic. Was subsequently identified and assessed the risks associated with an investment by using Monte Carlo simulation. The conclusion of this work the company receives a recommendation whether or not to implement the project.
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An efficiency comparison of simulation methods for artificial neural network training and inverse analysis
Nezval, Michal ; Novák, Drahomír (referee) ; Lehký, David (advisor)
The thesis deals with inverse analysis which is based on combination of artificial neural network and stochastic methods. The goal is to compare an efficiency of new simulation method Hierarchical Subset Latin Hypercube Sampling to classical Monte Carlo method and standard Latin Hypercube Sampling method used for neural network training. The efficiency is compared for a different neural network structures. The inverse analysis is then applied for engineering tasks – identification of limit state fiction parameters related to pitched-roof frame and material parameters of concrete specimen subjected to three-point bending. Finally an efficiency of Hierarchical Subset Latin Hypercube method comparing to Monte Carlo and Latin Hypercube Sampling methods is discussed.
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Distributed Ray Tracing
Hošek, Václav ; Hradiš, Michal (referee) ; Herout, Adam (advisor)
VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ Distributed Ray Tracing, also called distribution ray tracing and stochastic ray tracing, is a refinement of ray tracing that allows for the rendering of "soft" phenomena, area light, depth of field and motion blur.
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