33 research outputs found

    Driver design for PROFINET bus coupler

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    Podstatou této diplomové práce je návrh a implementace ovladače pro Profinetový bus coupler od firmy Phoenix Contact, který pro komunikaci využívá běžnou síťovou kartu počítače. Návrh vychází se znalostí získaných z dostupné literatury a analýzy protokolu Profinet.The essence of this diploma thesis is the design and implementation of driver for Profinet bus coupler from Phoenix Contact, which use computer's network card for communication. The proposal builds on the knowledge gained from available literature and analysis of Profinet protocol.

    EDU-mod model control by programmable logic controller S7-1200

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    Tato bakalářská práce byla vytvořena jako podpora pro výuku předmětu Programovatelné automaty na Ústavu automatizace a informatiky fakulty Strojního inženýrství Vysokého učení technického v Brně. Cílem práce je seznámit se s programovatelným automatem Siemens Simatic S7-1200, HMI panelem Siemens Simatic KTP400 Basic color, vývojovým prostředím TIA Portal v11 a modely soustav EDU-mod. Poté pro tyto modely navrhnout a realizovat vzorové úlohy a ověřit funkčnost pomoc PLC.This bachelor's thesis was created as a support for Programmable Logic Controllers course at the Institute of Automation and Computer Science of the Faculty of Mechanical Engineering at Brno University of Technology. The aim of this work is to get acquainted whit programmable logic controller Siemens Simatic S7-1200, HMI panel Siemens Simatic KTP400 Basic color, development environment TIA Portal v11 and EDU-mod models. Subsequently, for these models to design and implement sample task and verify their functionality using a PLC.

    Jesuits and musical culture in Prague 1556-1623

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    Disertační práce je příspěvkem k poznání starší hudební kultury v českých zemích, a to na konkrétním příkladu jezuitské koleje u sv. Klimenta v Praze od jejího založení (1556) do vzniku samostatné české provincie (1623). Hudební provoz v koleji je sledován a interpretován v širším kulturněhistorickém záběru na základě původních rukopisných jezuitských pramenů (diária, pamětní knihy, catalogi personarum, litterae annuae, dobová historiografická díla) s přihlédnutím k dalším primárním zdrojům. Latinsky psaná autentická svědectví o hudebním dění v Klementinu a o vztahu pražských jezuitů k hudbě jsou do práce začleněna ve formě dokladových podčarových poznámek, případně supplement k jednotlivým kapitolám, které se pokoušejí zkoumané téma osvětlit (illustrare) a zhodnotit (recensere) z hlediska (1) institucionálního (řád, kolej, přidružené sodality), (2) akusticko-prostorového (zvukový obraz koleje jako součásti raněnovověkého města), (3) personálně- prosopografického (hudební prefekti koleje a mariánské kongregace), (4) dochovaných hudebních památek, (5) jednotlivých událostí s hudební složkou (liturgické a paraliturgické obřady, promoce, kongregační aktivity) a (6) funkce hudby v dobových konfesionálních střetech. Klíčová slova: starší hudební kultura; renesanční hudba; země Koruny české; Praha;...This thesis contributes to our knowledge of the early (modern) Bohemian musical culture by tracing the musical production and activities at the Jesuit Clementinum college in Prague from its foundation in 1556 to the establishment of the autonomous Bohemian Province in 1623. This analysis draws on original Jesuit archival documents (diaria / diaries, memorial books, catalogi personarum / personnel catalogues, litterae annuae / annual letters, historiographical works of the period) and wider primary sources, which the author interprets within broader socio-cultural and historical realms. Authentic testimonies written in Latin that document musical activities in the Clementinum and the relationship of Prague Jesuits with music are included in the footnotes or in appendices. Individual chapters seek to illustrate (illustrare) and assess (recensere) the materials investigated from the following points of view: 1) institutional (Order, College, associated sodalities); 2) environmental acoustics (broader sound production within the spaces of the College and the rest of the city); 3) prosopographical (music prefects of the College and of the Marian Congregation); 4) surviving musical sources; 5) ceremonies with musical components (liturgical and paraliturgical ceremonies, graduations, congregational...Ústav hudební vědyInstitute of MusicologyFilozofická fakultaFaculty of Art

    Law as an Instrument for Ensuring Public Security

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    Public security is closely linked to the concept of public authority. Law is understood as one of the important instruments for ensuring public security and in its modern form it is not conceivable or functional without addressing the issues of formal publication. The legal order as a whole is subject to a number of pressures that ultimately reduce the necessary degree of stability of the law. The belief in the almost unlimited possibilities of legal regulation is at odds with the real possibilities of legislative action. The volume of legislation regulating the activities of public authorities and the public security segment is steadily growing and is becoming difficult to be understood and grasped by the stakeholders. The paper concludes by outlining the problematic cases encountered by public authorities in the Czech Republic. The recent state of crisis legislation in the legal and security environment of the Czech Republic is also mentioned

    An Ab Initio Study of Pressure-Induced Changes of Magnetism in Austenitic Stoichiometric Ni2MnSn

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    We have performed a quantum-mechanical study of a series of stoichiometric Ni2MnSn structures focusing on pressure-induced changes in their magnetic properties. Motivated by the facts that (i) our calculations give the total magnetic moment of the defect-free stoichiometric Ni2MnSn higher than our experimental value by 12.8% and (ii) the magnetic state is predicted to be more sensitive to hydrostatic pressures than seen in our measurements, our study focused on the role of point defects, in particular Mn-Ni, Mn-Sn and Ni-Sn swaps in the stoichiometric Ni2MnSn. For most defect types we also compared states with both ferromagnetic (FM) and anti-ferromagnetic (AFM) coupling between (i) the swapped Mn atoms and (ii) those on the Mn sublattice. Our calculations show that the swapped Mn atoms can lead to magnetic moments nearly twice smaller than those in the defect-free Ni2MnSn. Further, the defect-containing states exhibit pressure-induced changes up to three times larger but also smaller than those in the defect-free Ni2MnSn. Importantly, we find both qualitative and quantitative differences in the pressure-induced changes of magnetic moments of individual atoms even for the same global magnetic state. Lastly, despite of the fact that the FM-coupled and AFM-coupled states have often very similar formation energies (the differences only amount to a few meV per atom), their structural and magnetic properties can be very different

    Shear Strength of Copper Joints Prepared by Low Temperature Sintering of Silver Nanoparticles

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    In this work, mechanical properties of Cu-to-Cu joint samples prepared by low temperature sintering of Ag nanoparticle paste have been investigated. The silver nanopaste was prepared by a controlled thermal decomposition of an organometallic precursor. The as-synthesized Ag particles were spherical, with an average diameter of 8.5 nm. The Cu-to-Cu joint samples were made by placing a small amount of Ag nanopaste between two polished Cu plates and sintering at 150C, 200C, 220C and 350C in air. A normal load was applied to aid sintering. Mechanical properties were measured by imposing a uniform stress across the sample bond area and measuring the corresponding strain. The application of external load was found to have a positive effect on the material’s mechanical properties. Furthermore, interestingly high values of shear strength were observed.Byly zkoumány mechanické vlastnosti Cu-to-Cu spojů připravených nízkoteplotní sintrací pasty Ag nanočástic. Ag nanopasta byla připravena řízeným tepelným rozkladem organokovových prekurzorů. Syntetizované Ag NPs byly kulovité, o středním průměru 8,5 nm. Cu-to-Cu spoje byly vyrobeny umístěním malého množství Ag nanopasty mezi dvě leštěné Cu desky a sintrováním při 150C, 200C, 220C and 350C na vzduchu. Zatížení bylo použito na k podpoře sintrace. Mechanické vlastnosti byly měřeny stanovením napětí lomu a deformace. Bylo zjištěno, že aplikace vnějšího zatížení má pozitivní vliv na mechanické vlastnosti spoje

    Jesuits and musical culture in Prague 1556-1623

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    This thesis contributes to our knowledge of the early (modern) Bohemian musical culture by tracing the musical production and activities at the Jesuit Clementinum college in Prague from its foundation in 1556 to the establishment of the autonomous Bohemian Province in 1623. This analysis draws on original Jesuit archival documents (diaria / diaries, memorial books, catalogi personarum / personnel catalogues, litterae annuae / annual letters, historiographical works of the period) and wider primary sources, which the author interprets within broader socio-cultural and historical realms. Authentic testimonies written in Latin that document musical activities in the Clementinum and the relationship of Prague Jesuits with music are included in the footnotes or in appendices. Individual chapters seek to illustrate (illustrare) and assess (recensere) the materials investigated from the following points of view: 1) institutional (Order, College, associated sodalities); 2) environmental acoustics (broader sound production within the spaces of the College and the rest of the city); 3) prosopographical (music prefects of the College and of the Marian Congregation); 4) surviving musical sources; 5) ceremonies with musical components (liturgical and paraliturgical ceremonies, graduations, congregational..
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