Cílem této práce je vývoj světelného zdroje založeného na technologii tlustostěnného elektroluminiscenčního panelu napájeného střídavým napětím (ACPEL). V současné době se jedná se o jedinou technologii založenou na metodách materiálového tisku vhodnou pro přípravu velkoplošných, flexibilních a vzorovaných zdrojů světla. Důraz je v této práci kladen na představení, prozkoumání a odstranění typických problémů, které jsou spojovány s touto technologií. Tyto problémy jsou omezený odstín barvy emitovaného světla a dlouhodobá stabilita elektroluminiscenčního prvku, který je vystaven vlivům prostředí. Rešeršní část dizertační práce je zaměřena na představení a identifikaci depozičních technik, vhodných pro reprodukovatelnou přípravu ACPEL panelů. Dalším cílem je identifikace fyzikálních parametrů, vhodných pro charakterizaci velkoplošných zdrojů světla. Praktickým cílem práce je nalezení vhodné metodologie pro popis a charakterizaci panelů, jakožto plošných světelných zdrojů. Fotometrická veličina jas L a spotřeba elektrické energie P byly vyhodnoceny jako vhodné parametry, určující aplikaci ACPEL panelů. Na modrém panelu bylo dosaženo maximální hodnoty jasu L = 133 cd•m2 při napětí Upp = 500 V a frekvenci f = 1000 Hz. Hodnoty spotřeby elektrické energie, vztažené na jednotkovou plochu panelů zkoumaných v této práci, jsou (7±3) mW. Tyto dosažené hodnoty dělají ze světelných zdrojů založených na ACPEL technologii zajímavé kandidáty pro různé aplikace. Vlivu rostoucí amplitudy a frekvence budícího napětí na dlouhodobou stabilitu panelů je důležitým cílem této práce. Pro popis stability byly zavedeny parametry L50 and L75. Bylo zjištěno, že rostoucí frekvence budícího napětí zkracuje životnost panelů. Laminovaný panel napájený napětím s přibližně trojnásobně vyšší frekvencí vykazoval přibližně třetinové hodnoty parametrů L50 a L75. Nejvyšších hodnot stabilitních parametrů dosahoval panel enkapsulován mezi skleněné pláty – přibližně sedminásobnou hodnotu oproti laminovanému panelu s trojnásobnou frekvencí. Optimální stability panelů lze dosáhnout při nastavení frekvence v rozmezí 400–800 Hz a zapouzdřením mezi sklo. Úzká paleta odstínů barev emitovaného světla je jeden z typických problémů, který dále zkoumán v dizertační práci. Tato práce zkoumá nadějnou metodu, přídavek vhodného materiálu pro konverzi barvy (CCM). Nový derivát diketopyrrolopyrrolu (DPP), absorbující v modré oblasti, byl přidán k modrému fosforu a byl pozorován sedminásobný narůst hodnot absolutního spektrálního ozáření v oblasti vlnových délek odpovídajících maximální emisi CCM materiálu. Jednoduchost přípravy vyvinutých zdrojů světla spolu s velmi nízkou spotřebou a vysokou dobou života dělají z ACPEL panelů zajímavé kandidáty pro podsvícení prvků například v automobilovém průmyslu, pro dekorativní osvětlení, pro „branding“ – zvýraznění reklamních značek.

This thesis examines the influence of advertisers on the content of printed motoring magazines through the method of quantitative content analysis. The thesis asks whether an increasement of advertising can or can not influence media's reporting on advertisers' products. The thesis examines three Czech printed motoring magazines: Svět motorů, Automobil revue and auto motor a sport. The theoretical part deals with the dual-market topic, in other words the theory of two types of media's customers: paying readers and paying advertisers. They can - and according to the theory they often do - differ in their interests. The advertiser is interested in showing his products in the media in the best possible light, on the contrary, the reader is interested in being informed as objectively as possible. The theoretical part is based mainly on McQuail (2009) and Jirák and Köpplová (2015), who deal, inter alia, with the dilemma of two customers. Part of the theory is devoted to several other research which have examined the same topic; e. g. in the context of Italian fashion magazines. The work itself is based on research questions that ask about a correlation between the amount of advertising and amount (and tonality) of editorial content devoted to the advertisers as well as a possible influence of...

This diploma thesis deals with the penetration of discourse of Communist power into the society through content of (women's) magazine Žena a móda within 50s and 60s. The aim of this thesis is to point out that the elements of communist ideology appeared also in media such as fashion magazine. First chapters of this thesis deal with socialism and its ideological propaganda and represent the importance of ideological symbols, propaganda and manipulation through the media. In connection with this the thesis represents also the political-economic situation in the textile and clothing industry and also uses the facts about the media control by the communist regime. On this basis the thesis presents an analysis of 240 issues of the Žena a móda magazine and focuses on selected ideological symbols such as socialist fashion, working clothes, relationship between the East and the West, ideological leaders and personalities, the Soviet Union as ideal, conceptualization of the "Great History" and the image of socialistic woman. The method of discourse analysis thus allowed to introduce the symbols in different historical and social contexts and also to point to their changes in time, specifically in the context of comparing their likeness in the 50s and 60s of 20th century. The content of Žena a móda magazine...

This master thesis is dedicated to comparison of classical book and electronic book reader and it examines the advantages and disadvantages of both formats for recipients. In this work the importance of the printing press for society will be described and also the reactions which were induced by its invention. Following chapters will be dedicated to the book itself. Most importatntly what "makes the book being the book" and what are its strength and weeknesses and why it is still popular. As a contrast to this phenomenon the massive increase in popularity of electronic book - especially e-readers in pocket readers, on the internet and in the smartphones which become potential competition for books. The goal of this work is to compare the printed version which is represented by paper book and electronic version which is represented by e- books. Comparison will be based on the description of the specifics of both information tools from technological aspect as well as from the different text perception and the enjoyment from the reading itself. At the end there is an attempt to predicate the possible development in the future - is book culture facing a crisis or will it hold its position in following years?

Diploma thesis is focused on the administration of the printed journalism by Ministry of Information (from October 1948 Ministry of Information and Education). Ministry was responsible for administration of the printed journalism from May 1945 to January 1953, when was dissolved. Thesis is divided into seven main chapters. The first one sets the topic into Czechoslovak history in years 1945-1953. The second section is focused on the restoration of Czechoslovak Republic during Second World War via perspective of legal and constitutional development. The third chapter characterizes the authority of the government and the ministry in the years 1945-1953. The fourth part deals with administration of the printed journalism before May 1945, which is structured according to historical periods. Period view of the printed journalism in observed period is topic of the fifth chapter. The sixth section is focused on personality of the Minister Václav Kopecký. The last chapter deals with own topic and it is divided into two subchapters (era of years 1945-1948 and 1948-1953). Both of parts contains description of structure of main printed newspapers and magazines, the legislative determination of the printed journalism and the establishment, changes in the internal structure of ministry and the dissolution of...

This master's thesis explores the relationship between news content and owners of print and online media publishers in the Czech Republic. In the recent decade, the Czech media scene has been subject to a phenomenon called oligarchisation, a process when vast most majority of international owners were gradually replaced by local media moguls who also do business in other sectors than the media. The theoretical part of the thesis looks at the media oligarchisation in the Central and Eastern Europe and associated threats to the standards of journalism and democracy per se. The empirical part offers a quantitative content analysis of year in review articles on 2019 and 2020. These articles were published in print and online newspapers in the five main media houses. The coding unit for analysis is an evaluative mention, i.e. only one part of each article, dedicated to a single event, name or trend. The resulting data is tested by a simple analysis of relative frequency, and is also subjected to Pearson's chi-square test. This latter examines the relationships of categorical variables. Subsequently, a correspondence analysis focuses on the most significant associations between media houses and variables of the analysed articles. The results of the analyses indicated that three of the five examined...

The thesis is dedicated to the changes of the book market between its entities, libraries and final consumer of information (readers, library users) after the arrival of the internet. Development of the internet has brought searching of the new business models and opportunities for cooperation. Electronic publishing that, along with the internet availability, commenced to raise is the starting factor for the development of electronic books. The thesis outlines the roles of individual entities of the book market, i.e. publisher and seller (distributor, book-seller and digital platform) and libraries during the production, sale and accessing books with the focus on electronic books. After description of used terminology, especially different approaches to the definition of "an e-book", the next chapter presents hardware devices and software programs that enable reading e-books. The third chapter introduces the role of a publisher in the process of publishing printed and electronic e-books. The aim of the chapter is to highlight different strategies of processing the printed and electronic text, incl. possibilities of self-publishing which gives new possibilities to the author's hands. The fourth chapter describes distribution and sale of printed and mainly electronic books and also defines the new...