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    Wyświetlanie 1-5 z 5
    Tytuł:
    Safety mechanisms of open safety profile and their modelling
    Autorzy:
    Luptak, J.
    Franekova, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/393886.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    MATLAB/Simulink
    symulacja czasu
    zakłócenia elektromagnetyczne
    Ethernet przemysłowy
    bezpieczeństwo sieci
    MATLAB Simulink
    time simulation
    electromagnetic interference
    industrial ethernet
    network safety
    Opis:
    Authors describe the solutions of safety industrial Ethernet with orientation to safety-related industrial control systems. Nowadays the numbers of safety solutions of industrial Ethernet are increasing (e. g. CIP Safety, ProfiSafe, Safety Interbus). Bernecker & Rainer is coming with the new solution - Open Safety, which was developed for technology Ethernet PowerLink (EPL), but open platform is compatible with the other types of industrial Ethernet too, e. g. Sercos, Ethernet/IP, Modbus, and Profinet. Mainly part of paper the safety analyses of Open Safety frame with orientation to safety codes used in two sub-frames are mentioned. Practical part is orientated to model realisation via Matlab, Simulink with the use of safety codes with possibility to demonstrate the detection capability of cyclic CRC codes dependence on characteristics of communications channel and generator polynomial selection.
    Źródło:
    Archives of Transport System Telematics; 2011, 4, 2; 37-42
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Possibilities of industrial Ethernet usage in safety critical applications
    Autorzy:
    Franeková, M.
    Ondrašina, T.
    Ľupták, J.
    Vestenický, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/393431.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    atak kryptoanalityczny
    Ethernet
    ProfiSafe
    CIP Safety
    Wi-Fi
    poziom nienaruszalności bezpieczeństwa
    cryptanalytic attack
    industrial ethernet
    safety integrity level
    Opis:
    Authors describe the possibilities of the industrial Ethernet usage in safety-critical applications as a component of safety-related control systems. The main part of the paper summarizes the safety requirements of industrial Ethernet ProfiNet and Ethernet/IP based on ProfiSafe and CIPSafety safety profiles oriented towards identification of communication errors and recommendations of protective mechanisms which are applied in communication protocols. In the practical part the results of performed cryptanalytic attacks on the wireless communication protocol based on the IEEE 802.11 standard are mentioned.
    Źródło:
    Archives of Transport System Telematics; 2010, 3, 4; 8-13
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Material Recovery of OFHC Cu and FeSi Steel after Processing by Plastic Deformations
    Autorzy:
    Kvackaj, T.
    Kocisko, R.
    Bidulska, J.
    Luptak, M.
    Kovacova, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032938.pdf
    Data publikacji:
    2017-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.82.Bg
    07.20.Mc
    81.20.Wk
    62.20.F-
    81.40.Ef
    Opis:
    The influence of thermoplastic processes through severe plastic deformations carried out at ambient temperature and through rolling carried out at cryogenic temperature on the recovery for two types of materials was investigated. As experimental materials, there were used oxygen free high conductivity copper and FeSi steel presenting materials with middle and high stacking fault energy, respectively. Both materials have been previously investigated, however mainly considering their material properties. In this study, oxygen free high conductivity Cu was processed by 13 passes through equal channel angular rolling which belongs to the severe plastic deformations group of methods. The rolling of FeSi steel at ambient and cryogenic temperatures was performed using a laboratory duo rolling mill, samples were rolled only by one pass. The aim of this study was to insert the strain to the materials with different stacking fault energy (middle and high) under ambient and cryogenic thermal conditions, respectively, and subsequently to observe the influence of stored energy on structural recovery of materials through differential scanning calorimetry method. This study implies that the recovery process characterized by the mobility of structural defects begins earlier for FeSi steel compared to oxygen free high conductivity Cu.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 5; 1315-1318
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Annealing Conditions on Structural Development of Cryo Rolled FeSi Steel
    Autorzy:
    Kvackaj, T.
    Bidulska, J.
    Bidulsky, R.
    Kovacova, A.
    Kocisko, R.
    Bella, P.
    Luptak, M.
    Bacso, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1367991.pdf
    Data publikacji:
    2014-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Bb
    81.05.Bx
    81.40.Rs
    81.40.Ef
    Opis:
    Non grain oriented isotropic electrical steels, commercially called NGOES, were investigated in cryogenic temperature conditions. At cryogenic temperatures plastic deformations form strong structural heterogeneities in the sample thickness. Samples processed by cryo rolling show a bigger storage energy. To achieve abnormal grain growth through the process of static recrystallization, the annealing conditions were applied to the deformed samples. Moreover, minimal magnetic losses were reached when mean grain size diameter was approximately 150 μm.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 1; 184-185
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Cryo-Rolling and Annealing on Magnetic Properties in Non-Oriented Electrical Steel
    Autorzy:
    Kvačkaj, T.
    Bella, P.
    Bidulský, R.
    Kočiško, R.
    Petroušek, P.
    Fedoriková, A.
    Bidulská, J.
    Jandačka, P.
    Lupták, M.
    Černík, M.
    Pernis, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032280.pdf
    Data publikacji:
    2017-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Bb
    81.05.Bx
    81.40.Rs
    81.40.Ef
    Opis:
    The goal of the present work is to compare progressive technology - rolling at cryogenic temperature and classical rolling at ambient temperature followed by an investigation of their impact on the final microstructure and the magnetic properties of non-oriented electrical steel. Non-oriented electrical steel is characterized by high magnetic induction, low magnetic losses, and low coercivity. The best magnetic properties are achieved using preferable texture and optimal grain size. In this paper there is analyzed the percentage of different textural components after cryo-rolling and after rolling at ambient temperature. To obtain maps of inverse pole figures, the electron backscatter diffraction method was used. The main contribution of this study was that the samples rolled at cryo conditions and after final annealing reached better magnetic properties than at ambient temperature, which was reflected by low magnetic losses and coercivity.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 4; 1105-1107
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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