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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
191

Nástroj pro modelování a simulaci technologických procesů / Tool for Modelling and Simulation of Technologic Processes

Skydánek, Libor January 2009 (has links)
This thesis focuses on the problem of technological process modelling and simulation. It is based on the realistic requirements of the Faculty of Mechanical Engineering, where they lacked an extensible and open simulation tool with the ability to model biomass processing. In this work we explain the main concepts in the field of (physical) chemistry, the systematic approach to process modelling and simulation and we discuss various problems of simulation methods. We also describe the differences between simulation and design specifications and give reasons for choosing the sequential modular approach. An important part of the work is aimed at the design of the simulation tool's architecture, where the main emphasis is laid on the extensibility of future application. The tool has been implemented and it is now sucessfully being used at the Faculty of Mechanical Engineering.
192

Gewässerverdunstung: Maßgebende Prozesse und Steuergrößen unter Berücksichtigung der besonderen Wechselwirkmechanismen zwischen atmosphärischen und limnologischen Umweltfaktoren

Spank, Uwe 05 November 2024 (has links)
Die Projektion und Prognose des zukünftigen Wasserhaushalts in den durch die Einstellung des Braunkohlebergbaus in der Lausitz entstehenden und der Nachsorge unterliegenden Tage-baufolgelandschaften, einschließlich der zeitlichen und räumlichen Verteilung der zugehörigen Wasserhaushaltselemente, sind Gegenstand sehr kontroverser Diskussionen, die oftmals ohne angemessenen fachlichen Bezug und mit hoher Emotionalität geführt werden. Besondere Uneinig-keit besteht in der Abschätzung der verdunstungsbedingten Wasserverluste über den entstehen-den Tagebaurestseen. Diese Gutachten enthält eine umfassende Darstellung aller für den Ver-dunstungsvorgang über großen Wasserflächen relevanten Prozesse sowie eine grundlegende Be-schreibung der zugehörigen Steuergrößen und Einflussfaktoren. Die notwenigen Begrifflichkeiten werden in Einklang mit den wissenschaftlichen Standards vorgestellt, definiert und erläutert. Ge-nauso werden die fundamentalen und zum Verständnis notwendigen physikalischen Vorgänge und Zusammenhänge benannt und beschrieben. In diesem Zusammenhang erfolgt auch eine kurze Darstellung gängiger Methoden zur Messung und Modellierung der Gewässerverdunstung. Die Unterschiede im Verdunstungsverhalten zwischen terrestrischen und aquatischen Standorten werden erörtert und in Bezug auf praktische Aspekte erläutern. Aufbauend diesen Erörterungen erfolgt eine Kurzdarstellung sich ableitende Handlungsempfehlungen. Das Gutachten fokussiert die Kausal- und Prozessbeschreibung. Direkte numerische Quantifikation der zu erwartenden Ver-dunstungsraten sind diesem Gutachtens nicht enthalten. Vielmehr wird an den betreffenden Stel-len auf die hohe Komplexität des Sachverhalts und der entsprechenden Notwenigkeit einzelfallbe-zogener Untersuchungen zur genauen Quantifizierung hingewiesen.:Präambel Gegenstand und Zielsetzung des Gutachtens Selbstauskunft und Expertise des Gutachtes Ehrenwörtliche Erklärung Bildnachweise Rechtsverbindlichkeit 1 Wichtige Begrifflichkeiten und Definitionen 1.1 Definition und Maßeinheiten 1.2 Verdunstungskomponenten in natürlichen Systemen 1.3 Physikalische Maxima durch Energie- und Wasserdargebot 1.4 Atmosphärische Steuergrößen und Einflussfaktoren 1.5 Kopplung von Wasser-, Energie und Strahlungshaushalt 1.6 Potentielle und reale Verdunstung 1.7 Grundlegende physikalische Steuerung des Verdunstungsprozesses 2 Messung und Modellierung der Gewässerverdunstung 2.1 Messung und Messmethoden 2.2 Modellkonzepte 2.3 Dalton-Ansatz 2.4 Widerstandsanalogiemodelle 2.5 Zwei- und Mehrschichtverdunstungsmodelle 2.6 Kombinationsmodelle 3 Evaluation der Gewässerverdunstung 3.1 Vergleich zwischen Land- und Gewässerverdunstung 3.1.1 Energetische Unterschiede 3.1.2 Strahlungsenergetische Besonderheiten 3.1.3 Rückkopplungen auf den atmosphärischen Verdunstungsantrieb 3.1.4 Taubildung und Kondensation an der Wasseroberfläche 3.1.5 Besonderheiten der Wärmespeicherung im Wasserkörper 3.1.6 Aerodynamische Unterschiede 3.1.7 Wasserverfügbarkeit und Bestandeswiderstand 3.2 Wechselwirkungen zwischen aquatischen und terrestrischen Flächen 3.2.1 Aerodynamische Effekte 3.2.2 Energetische Effekte 3.2.3 Verdunstung in Uferzonen und Flachwasserbereichen 3.2.4 Effekte lithoraler Vegetation 3.3 Empirische Studien 4 Weitere Aspekte 5 Abschließende Bewertung und Handlungsempfehlungen Verzeichnisse Abkürzungen Lateinische Großbuchstaben Lateinische Kleinbuchstaben Griechische Großbuchstaben Griechische Kleinbuchstaben Abbildungen Tabellen Gleichungen Fußnoten Quellen und Literatur
193

Příprava realizace víceúčelového domu Brno - Klíčova / Preparation realization multipurpose building Brno - Klíčova

Sviták, Roman January 2014 (has links)
The thesis is focused on the preparation of realization the multipurpose building Brno - Klíčova. The content of this the thesis is study of construction technology followed by the construction technology project. The aim of the thesis is to identify the sources of the time, money, workers and materials of the building and then select the appropriate process of realization.
194

Evropská měnová unie / European monetary union

Kužílek, Pavel January 2010 (has links)
The aim of this work is to analyze the success of European monetary integration and it's contribution to countries, who's economics are, no matter if for the long lasting difficulties or recent transformation, likely to be called hazardous. In the first part, the work concerns itself with the very conception of the idea of European monetary integration and it's development, over the final form of the project, it's accomplishment up till current problem and challenges. The second part is an analysis of chosen countries who belong in the category named above. With this countries I will try to analyze the effect that joining the monetary union had on their economy. In the end I'll summarize the acquired knowledge to evaluate the effect of the common currency on the chosen group of countries.
195

Nestlačitelné tekutiny s viskozitou závislou na teplotě, numerická analýza a počítačové simulace / Incompressible fluids with temperature dependent viscosity - numerical analysis and computational simulations

Ulrych, Oldřich January 2014 (has links)
Title: Incompressible fluids with temperature dependent visco- sity, numerical analysis and computational simulations Author: RNDr. Oldřich Ulrych Department: Mathematical Institute of Charles University Supervisor: prof. RNDr. Josef Málek, CSc., DSc. Abstract: Flows of incompressible fluids connected with significant exchange of ther- mal and mechanical energy and with material moduli varying with the temperature and the shear rate, are described by the balance equations for linear momentum and energy, complemented by suitable constitution equations for the Cauchy stress and the heat flux. Assuming sufficient smoothness of quantities involved, the energy balance equation exhibits several equivalent formulations. However, within the context of weak solution, these formulations are, in general, not equivalent. This thesis is based on the existence theory for the generalized Navier-Stokes-Fourier system describing planar flow of fluids with a shear and temperature dependent vis- cosity. We specify parameters of a generalized power-law model under which weak formulations of balance equations are meaningful and both considered formulations of the energy balance equation are equivalent. Supported by the existence theory, we propose and numerically solve several problems pursuing the aim to systematically compare the...
196

Vzájemná bilance obchodu České Republiky a Japonska / Mutual balance of trade between the Czech Republic and Japan

VARBANOVOVÁ, Lucie January 2013 (has links)
The dissertation deals with the topic of the mutual trade balance between the Czech Republic and Japan. The main focus is to find the causes of contemporary state of the mutual trade balance. The dissertation research which factors influence it and which factors will influence it in the future and how will the mutual trade balance probably develop in the future. The partial aim of this thesis is to find the possibilities of a concrete company to enter the Japanese market with reference to the market barriers. The dissertation firstly provides the theoretical information includes the topics of the economical development of Japan, Japanese external trade and also the trade between the Czech Republic and Japan. Then there are analyzed various entry barriers of the Japanese market. All the barriers are considered firstly generally and afterward they are applied on the concrete company, which contemporary thinks to enter the Japanese market. There are also discussed other factors, which are important in regard to entry the Japanese market as is transport, the business risk etc. The next part covers the causes of the contemporary mutual trade balance and the possibilities of its future development and possible equalization. There are analyzed factors, which influence the most the mutual trade balance between the Czech Republic and Japan.
197

Analýza faktorů ovlivňujících přímý odtok z povodí / Analysis of factors affecting a direct runoff from the catchment area

NEUBAUEROVÁ, Andrea January 2014 (has links)
This diploma thesis follows my bachelor thesis. The main purpose of the bachelor thesis was to clarify fundamental terms and to explain the sorting of particular parts of a direct flow that involves both the surface saturated flow and the hypodermic flow. This diploma thesis is focusing on the origin of direct flow in a river basin. Specifically, it deals with river sub-basin P6, P52, and P53, which are located in Kopaninský potok river basin. Furthermore, it deals with Jenín I. and II. river basins and the last analysed is Ostřice river basin (SO2). Factors influencing direct flow are researched on all river basins. It is impossible to say that the origin of direct flow is caused solely by a single factor; it is always the result of multiple factors. Among these factors belongs the atmospheric precipitation, type of soil, vegetation, climatic and anthrophogenic conditions, land use, and inclination of the area. The bachelor thesis explains the issues of multiple methods of flow separation, but this diploma thesis is primarily focused on two methods for calculation of ratio between the direct and the total flow. 1) Empirical method GROUND, which is used to separate hydrographs of medium daily river basin flow. 2) Method of digital filter by Lyne Hollick separate fast and slowcomponents from the overall concentrated flow and are based on the theory od signal analysis. Afterwards, the results of flow separation were compared to the factors influencing the origin of the direct flow. The daily total flow rates for every analysed river basin were used as the input data for calculating the flow separation.
198

Ekonomika Rakouska a komparace s ČR / The economy of Austria and its comparison to the Czech Republic

Němcová, Martina January 2014 (has links)
The aim of the thesis is to describe the economy of Austria from the perspective of basic macroeconomic indicators and their development from the early 1990s to the present. These indicators are compared with the selected countries, especially with Germany, the United States of America and the Czech Republic. As Austria is a small open economy, international trade and external economic balance are important topics to be mentioned. Austria is compared to the Czech Republic. Both countries are not only geographically close to each other, they also have a common history and cultural traditions. Therefore, a comparison of their pension systems, healthcare and ethnic compositions is included in this thesis.
199

Komparace vývoje veřejných rozpočtů v jednotlivých politických cyklech od vzniku České republiky do roku 2015 / Comparation of development of public budgets at particular political cycles in Czech Republic since 1993 to 2015

Křeček, Štěpán January 2015 (has links)
The paper provides a comprehensive overview of public budgets in the Czech Republic, focusing on government budgets. The thesis compares the development of fiscal policies in distinct political cycles in the modern era of the Czech Republic. This allows for the analysis of the influence of the fiscal policies on the development of distinct macroeconomic indicators which then makes possible the evaluation of the success of different approaches to budget making. The preparation of public budgets is a periodical activity which happens at all levels of public governance. Therefore, the paper thoroughly analyzes preceding budgets and attempts to reveal the errors make by our governments. A deductive method is used with these analyses and their comparisons to make the foundation for general principles which can be used for the improvement of the budget planning in the Czech Republic.
200

Stavebně technologický projekt mateřské školy / Building technological project nursery school

Alexa, Martin January 2018 (has links)
This thesis handles the construction and technological project of nursery school in the Brno. It deals with technical reports, technological methods of construction. The report contains technical reporst of building equipment, schedule, design of mechanical assembly, inspection and health and safety at work.

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