Contribution of The Tschammer Library in Cieszyn for Retrospective National Bibliography

The subject of my thesis is the bibliographic processing of the collection of old Czech prints published until 1800 preserved in the Tschammer Library in Cieszyn. The aim is a compilation of bibliographical inventory of preserved editions to give an answer to three research questions. First question is: can a revision of former research results bring something new from the perspective of the national retrospective bibliography? Than whether and how the results of the analysis of the Czech historical collection of specifically local church library can extend the existing knowledge in the research of the history of book culture in Bohemia, Moravia and Silesia? Finally, what does the analysis of the provenance of preserved copies held in the Tschammer Library bring to the history of readers, reading and book culture in the Czech lands? The introductory chapter is devoted to the development of evangelical community of Cieszyn Silesia from the 16th to the beginning of the 19th century. The second chapter presents the history of the library and the basic characteristics of its historical collections. The third chapter focuses on the results of my bibliographic research. The conclusion brings a summary of the work and an evaluation of the achieved results, followed by a bibliographic inventory of...Předmětem práce je bibliografické zpracování souboru bohemikálních starých tisků vydaných do roku 1800 dochovaných v Tschammerově knihovně v Těšíně. Cílem je sestavit bibliografický soupis dochovaných vydání a na základě analýzy zodpovědět tři badatelské otázky. Může revize dříve dosažených badatelských výsledků přinést něco nového z hlediska národní retrospektivní bibliografie tisků vydaných do roku 1800? Zda a jak mohou výsledky analýzy bohemikální části historického fondu specificky lokální sborové knihovny rozšířit dosavadní poznatky v oblasti výzkumu dějin knižní kultury Čech, Moravy a Slezska? Co může přinést provenienční analýza evidovaných exemplářů v lokální církevní knihovně z hlediska dějin čtenářství, mecenátu a knižní kultury v českých zemích? Úvodní kapitola je věnována vývoji těšínské evangelické obce od 16. do počátku 19. století. V druhé kapitole jsou představeny dějiny a správa Tschammerovy knihovny a základní charakteristika jejího historického fondu. Třetí kapitola představuje výsledky samostatného bibliografického výzkumu. Závěr tvoří celkové shrnutí práce a zhodnocení dosažených výsledků, na které navazuje bibliografický soupis evidovaných bohemikálních tisků vydaných do roku 1800 dochovaných v historickém fondu Tschammerovy knihovny.Institute of Information Studies and LibrarianshipÚstav informačních studií a knihovnictvíFilozofická fakultaFaculty of Art

Pulsed DC magnetron sputtering deposition of crystalline photocatalytic titania coatings at elevated process pressures

© 2017 Elsevier Ltd The use of elevated process pressures is described in the magnetron sputter deposition of titanium dioxide photocatalytic coatings to enable the direct low-temperature formation of the most photoactive titania crystal phase; anatase. Most other works on this subject deal with relatively low ‘conventional’ pressures (0.1–0.5 Pa). However, the present work describes pulsed DC reactive magnetron sputtering deposition of titanium dioxide thin films at process pressures in the range 2–5 Pa in a purpose-built sputtering rig. The influence of the other deposition conditions, such as pulse frequency and duty cycle, is also discussed. Additionally, a series of N-doped titania coatings was produced by using air as the reactive gas. The morphological and compositional properties of the coatings were studied using energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). Wettability of the films was studied through measurement of water contact angles under UV light irradiation. Photocatalytic properties of the samples were assessed through the degradation of two model pollutants, methylene blue and stearic acid, under UV light irradiation. The results showed that elevated process pressures (4 Pa and above) allow the direct deposition of anatase titania films, without additional heat treatment, while amorphous titania tends to form at lower process pressures

High-rate low-temperature dc pulsed magnetron sputtering of photocatalytic TiO2films: the effect of repetition frequency

The article reports on low-temperature high-rate sputtering of hydrophilic transparent TiO2thin films using dc dual magnetron (DM) sputtering in Ar + O2mixture on unheated glass substrates. The DM was operated in a bipolar asymmetric mode and was equipped with Ti(99.5) targets of 50 mm in diameter. The substrate surface temperature Tsurfmeasured by a thermostrip was less than 180 °C for all experiments. The effect of the repetition frequency frwas investigated in detail. It was found that the increase of frfrom 100 to 350 kHz leads to (a) an improvement of the efficiency of the deposition process that results in a significant increase of the deposition rate aDof sputtered TiO2films and (b) a decrease of peak pulse voltage and sustaining of the magnetron discharge at higher target power densities. It was demonstrated that several hundreds nm thick hydrophilic TiO2films can be sputtered on unheated glass substrates at aD = 80 nm/min, Tsurf < 180 °C when high value of fr = 350 kHz was used. Properties of a thin hydrophilic TiO2film deposited on a polycarbonate substrate are given

Photodegradation of Pollutants in Air: Enhanced Properties of Nano-TiO2Prepared by Ultrasound

Nanocrystalline TiO2samples were prepared by promoting the growth of a sol–gel precursor, in the presence of water, under continuous (CW), or pulsed (PW) ultrasound. All the samples turned out to be made of both anatase and brookite polymorphs. Pulsed US treatments determine an increase in the sample surface area and a decrease of the crystallite size, that is also accompanied by a more ordered crystalline structure and the samples appear to be more regular and can be considered to contain a relatively low concentration of lattice defects. These features result in a lower recombination rate between electrons and holes and, therefore, in a good photocatalytic performance toward the degradation of NOxin air. The continuous mode induces, instead, the formation of surface defects (two components are present in XPS Ti 2p3/2region) and consequently yields the best photocatalyst. The analysis of all the characterization data seems to suggest that the relevant parameter imposing the final features of the oxides is the ultrasound total energypervolume (Etot/V) and not the acoustic intensity or the pulsed/continuous mode

Structural Formation and Photocatalytic Activity of Magnetron Sputtered Titania and Doped-Titania Coatings

Titania and doped-titania coatings can be deposited by a wide range of techniques; this paper will concentrate on magnetron sputtering techniques, including “conventional” reactive co-sputtering from multiple metal targets and the recently introduced high power impulse magnetron sputtering (HiPIMS). The latter has been shown to deliver a relatively low thermal flux to the substrate, whilst still allowing the direct deposition of crystalline titania coatings and, therefore, offers the potential to deposit photocatalytically active titania coatings directly onto thermally sensitive substrates. The deposition of coatings via these techniques will be discussed, as will the characterisation of the coatings by XRD, SEM, EDX, optical spectroscopy, etc. The assessment of photocatalytic activity and photoactivity through the decomposition of an organic dye (methylene blue), the inactivation of E. coli microorganisms and the measurement of water contact angles will be described. The impact of different deposition technologies, doping and co-doping strategies on coating structure and activity will be also considered

Mutlicriteria decision making about investments in advertising in Czech Republic

The goal of this disertation work is to find a mathematical model, which could help marketing workers to decide in which media to invest money for advertising. It includes decription of each media channel (TV, radio, press and internet), the mathematical model and it's computation based on two methods and a real-life example