The medieval poet and composer Záviš is known as author of religious and secular poetry, written in Latin and in Czech. Scholar works – both of musicologists and literary historians – mostly focused on his love song Jižť mne všě radost ostává, looking for its correct musical reconstruction and the proper place within the late-fourteenth-century vernacular literary tradition. The article deals with Záviš’s less studied works, which represent typical additions to the repertory of the Latin liturgical poetry. It revises the hitherto authoritative Mužík’s interpretation of the Záviš’s lai O Maria, mater Christi and its transmission, brings analysis of his tropes Kyrie Inmense conditor and Gloria Patri et filio, and compares Záviš’s output to the typical or exceptional works of the late-fourteenth / early fifteenth-century. The chants which can be today attributed to Záviš, show a strong influence by the late-medieval German repertory, knowledge of the chants once performed (only) in the St Vitus’s Cathedral, and reveal a surprising link to the contemporary poetical repertory in Northern Italy. Following this, new arguments arise supporting older hypothesis about the identification of the autor ‘Záviš’ as the influencial church official Záviš of Zapy.
It is advantageous to have a tool for a coating stoichiometry calculation to control coating deposition made from two different cathodes. Stoichiometry depends not only on arc currents ratio, but also on intensity and shape of magnetic field. This relation has been experimentally verified and is presented for TiAlN coating prepared by a new coating device Pi111. With the aid of this tool, it is possible to estimate coating parameters and to reach the desired Al/Ti ratio in a coating. With increasing content of Al in a coating, cubic structure shifts to hexagonal structure. This change proves itself not only by hardness decrease, but also by a change of coating growth rate. For detailed description of this effect, method of calculation of coating stoichiometry described above was used., Článek je zaměřen na problematiku určování stechiometrie vrstev nanášených metodou PVD. Patentovaný systém rotačních katod umožňuje ze znalosti procesních parametrů určit složení výsledné vrstvy. To je ovlivněno nejen poměrem proudů do oblouků, ale také intenzitou a tvarem magnetických polí katod. Tato závislost byla experimentálně prokázána pro vrstvu Ti1-xAlx N připravenou na novém povlakovacím zařízení Pi111. Této závislosti bylo dále využito pro vývoj metody umožňující optimalizovat procesní parametry tak, abychom získali vrstvu Ti1-xAlx N s požadovanou stechiometrií. Se zvyšujícím se obsahem hliníku v povlaku Ti1-xAlx N dochází ke změně kubické struktury na hexagonální. Tato změna je doprovázena nejen snížením mikrotvrdosti vrstvy, ale také změnou rychlosti růstu vrstvy. Pro odhalení tohoto efektu byla s úspěchem využita metoda výpočtu stechiometrie vrstvy zmíněná výše., and Autor: M. Jílek ml.
Problems of membrane liquid lenses with variable focal length are discussed in the paper. Aproximate formulae for varying thickness of spherically and parabolically deformed membrane were derived, what allows to determine its influence on quality of imaging properties of a membrane liquid lens. Also formulae for wave spherical aberration calculation of a membrane and liquid lens body were derived. It is shown that the influence of membrane thickness and its changes on wave spherical aberration is negligible from practical point of view. and Byla řešena problematika membránových kapalinových čoček s proměnnou ohniskovou vzdáleností. Byly odvozeny přibližné vztahy pro změnu tloušťky sféricky a parabolicky deformované membrány, které umožňují určit vliv této změny na kvalitu zobrazení kapalinové čočky. Dále jsou odvozeny vztahy pro výpočet vlnové sférické aberace membrány a kapalinového tělesa čočky. Bylo ukázáno, že vliv tloušťky membrány a změny její tloušťky na vlnovou sférickou aberaci kapalinové čočky jsou z praktického hlediska zanedbatelné.
The study focused on the factory colony of the mine „Jiří“ in Moravská Ostrava, by now only marginally reflected upon by the regional historians, does not aim to be a monograph dealing with the history of one of the rough number of 55 miners‘ colonies on the territory of contemporary Ostrava. The study of the colony of „Jiří“ that existed from the year 1872 or 1889 to the year 1970 was motivated, first, by the author’s interest in the proletarian colonies in Ostrava. But it also constitutes part of the research project begun in the year 2010. The research should culminate at producing a modern topography of miners‘ colonies of Ostrava that would replace the problematic topography of Jaroslav Bílek (1966). The study of the colony of „Jiří“ aims to refute the myth of its foundation before the year 1860, to describe in detail its constructional- architectonic development and the living standard, positively resolve the problem of the number of houses in the colony, and especially to remind the fact, unique in the region of Ostrava, of the double foundation of the colony in the years 1871 and 1888. Besides the general information concerning the setting and surroundings of the colony of „Jiří“ and its civic amenities, the study should provide the correction of the data on the population development of the colony in the years 1890–1910 presented in the thesis of Drahoslava Dušková (1976).
Zázněje vznikají sečtením dvou harmonických signálů o blízké frekvenci. Využijeme-li signálů vhodných frekvencí, v našem případě dvou tónů vzdálených o určitý interval, můžeme se dobrat nečekaného výsledku. and Vojtěch Radolf, Pavel Marek.