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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.
41

Energetická alternativa EU: obnovitelné zdroje (fotovoltaika) / EU energy alternative: renewable energy sources (photovoltaics)

Turek, Ondřej January 2009 (has links)
Diploma thesis deals with current priorities of energy policy within EU region, where is a substantial emphasis placed on exploitation of renewable energy sources (RES). There is mentioned historical development in the first part as well as an actual approach to energy policy by EU. Further is evaluated exploitation of RES and their proprotion on electricity generation. I also provide analysis whether current energy objectives can be met. In the last part I deal with photovoltaic industry both in EU and Czechia. Energy extraction from sunshine is currently the most growing field industry all over the world and especially in EU.
42

Návrh strategie rozvoje podnikatelského subjektu / Proposal for strategic development of business subject

Šeba, Patrik January 2016 (has links)
The aim of this diploma thesis is to define the business strategy of chosen company from the Czech Republic, the company Decci and its future development on the African continent. The particular analysis are based on the gathered data of 2 planned investment projects of expansion into Namibia and Zambia. The aim of these analysis was to discover the weak and strong parts in those projects, to define possible opportunities but also all the risks which may be caused by the specific conditions of African continent. The results of this thesis should broaden the existing document portfolio of different analysis, which have been done by the company so far and should help to make well-founded decision regarding to the expansion on Namibian and Zambian energy market. This diploma thesis is composed of 2 main parts. The first part is describing the theory of strategic management, the business management theory and the theory of investment, which are the theoretical ground for the other parts of this thesis. The practical part starts with the brief characteristic of the chosen company Decci a.s., describing its history, recent projects, future visions and its management structure. This introduction is followed by the evaluation of 2 investment projects of expansion in the chosen locations, which has been done by using different strategic analysis. At the end of the practical part, there is a financial evaluation of planned projects which should be used as a summary of each project, conditions for its financing and the level of its profitability. In conclusion, the particular strategies are formulated as results of strategic analysis and thereafter it is chosen the more beneficial investment project. The thesis is concluded by certain recommendations, which may be taken into consideration before the start of investing activities and also for the successful company development on the African continent.
43

Legislativní a ekonomické problémy solární energie v ČR / Legislative and Economic Problems of Solar Energetics in the Czech Republic

Knězů, Kristýna January 2010 (has links)
This work discusses the development of solar energy exploitation in Czech republic and partially in Germany. It contains basic definitions of terms in the area of renewable energy sources, such as solar energy, fotovoltaic powrplants etc. In next part it describes development of solar systems in Czech republic and birth of legislation that regulates it. The main part of the work analyzes status quo of solar systems in Czech republic, especially in relation to continuous development of legislative environment. Equal attention is paid to solar energy evolution in Germany and its simmilarities with Czech environment. Based on these findings potential trends are outlined.
44

Analýza kolektivních systémů a jejich možné dopady na fotovoltaiku / Analysis of collective systems and their possible impacts to photovoltaics

Karasová, Markéta January 2010 (has links)
Diploma work analyzes the collective systems which are solving the disposal of photovoltaic's panels, classified as electrical equipment subject to recollection since last year, and tries to get answer to question if the collective systems should ensure a smooth disposal. Biggest wave of disposal photovoltaic's panels is expected in the next 15 -- 20 years. Operators and manufacturers have a statutory obligation to pay a fee, for every kilogram of photovoltaic's panels.The question under consideration is the check of the collective systems setting and also, comparative analysis of collective systems which are dealing with disposal of photovoltaic's panels and other electrical equipment. Furthermore, the survey conducted and processed according to the conclusions of the various groups (collective systems operators, operators of PV plants, lawmakers, and public) and also, the analysis of systems is presented.
45

Tvorba laboratorních úloh pro předmět Obnovitelné zdroje energie / Creation of laboratory exercises for Renewable sources of energy

Bajgl, Tomáš January 2017 (has links)
This diploma thesis deals with the transformation of solar and wind energy into electrical energy by using a photovoltaic panel and a wind turbine. The work gives insight into the Czech Republic’s issue of energetics in the context of historical development, the current state, and the expected future development. The primary attention is given to the renewable sources - the solar energy and wind energy. Basic principles of creation and manipulation of solar and wind energy are described in this work. Two laboratory tasks are created for the Renewable Energy Sources' class as a part of the practical part.
46

Soustava DC/DC měničů pro solární panely fotovoltaické elektrárny / System of DC/DC converters for solar cells of a fotovoltaic power plant

Benda, Dušan January 2018 (has links)
This master thesis describes the design of a DC/DC converter for one photovoltaic panel with a 250 W peak power. The master thesis is divided into parts dealing with detailed design of power electronics, analog circuit design, description of control MPPT algorithms and software for control circuit. The chapter with the mathematical modeling of the converter created in the Matlab Simulink was added beyond the assignment.
47

Sběr a cloudové vyhodnocení dat z vícepásmových solárních senzorů / Multiband solar sensors data acquisition and cloud processing

Hertl, Vít January 2020 (has links)
Tato diplomová práce staví na základech položených v rámci semestrální práce se stejným názvem. Na začátku jsou nejprve uvedeny základní vlastnosti slunečního záření nutné k pochopení výpočtu tzv. performance ratio. Dále jsou popsány solární senzory vyvinuty v ReRa Solutions, které byly zdrojem dat. V následné literární rešerši jsou zkoumány alternativy k nespolehlivému Wi-Fi připojení senzoru a za nejvýhodnější řešení je považována LoRa. V praktické části je detailně popsán proces návrhu a vývoje single page aplikace. Tato aplikace umožňuje jak ukládání dat ze senzorů do databáze, tak jejich opětovné čtení a zobrazení zpět uživateli ve srozumitelné podobě. Aplikace těží z využití moderních programovacích jazyků a frameworků (např. Kotlin, Spring, TypeScript, React, Material-UI). Databázový model, který byl navržen na základně skutečného využití, představuje koncept tzv. monitorované oblasti, což přináší široké konfigurační možnosti. Poté byl model přenesen do databáze ve formě programovatelných entit. Komunikace mezi klientem a serverem podporující autentifikaci na základě uživatelských rolí byla implementována přes REST API. Přes grafické rozhraní aplikace je možné konfigurovat prostředí podle uživatelských požadavků a zobrazit interaktivní grafy obsahující senzory naměřená data. Aplikace byla nasazena v Google Cloudu s oddělenou databází.
48

Katedrála v současnosti / Cathedral today

Nováková, Eva January 2020 (has links)
The main topic of the Diploma thesis is a complex design to rescue cathedral Notre-Dame in Paris. The work is firstly focused on the reconstruction of the structure including its collapsed parts and preserving a link to the destructive fire in 2019. The mainstay of the thesis is a design of new roof space and its use by broad public. Due to uncertainties about the structure stability disrupted by the fire a great emphasis has been put on the weight reduction of the newly built roof structure. The design makes a genuine attempt to be sensitive with respect to the spiritual function of the cathedral, thus the public roof access is separated from the cathedral itself thanks to a newly built underground spaces that are also included in the design.
49

Návrh fotovoltaické elektrárny pro rodinný dům v okrese Jihlava / Design of a photovoltaic power plant for a family house near Jihlava

Dvořák, Vít January 2021 (has links)
This diploma thesis deals with the design of a photovoltaic solar power station for a specific family house in the Jihlava region. The aim of the work was to get acquainted with technologies about the production of solar systems, evaluate the market in the Czech Republic and create a design of photovoltaic solar power station. Three designs of power stations were created with the help of the PV * SOL design system. Each design uses different photovoltaic cell technology. The result of each power station design is a complete finished project, which is based on many factors such as the efficiency of the entire system in a certain location, financial analysis, return on investment and more. In addition, these projects meet the conditions for the preparation of the subsidy program Nová zelená úsporám. At the end of the work, all three designed power stations are evaluated and with the help of multicriteria analysis, the best and most advantageous power station design for the given locality is determined. In the end, the idea of further development of the project is presented.
50

Studium vztahu mezi strukturou a vlastnostmi derivátů diketopyrolopyrolů / Study of structure-property relationship of diketopyrrolopyrrole derivatives

Vrchotová, Jana January 2011 (has links)
This master´s thesis deals with new perspective organic molecular materials. A theoretical part contains search themed on organic materials for optical and electronic devices with emphasis on diketopyrrolopyrrole derivatives. The aim of the experimental part was preparation of solutions, thin layers and prototypical planar electronic components from chosen diketopyrrolopyrrole derivatives and their optical and electric characterization. Obtained results are interpreted with perspective on application in organic electronic.

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