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    Wyświetlanie 1-6 z 6
    Tytuł:
    Performance analysis of CoS of bridged WorldFIP and ATM networks for real time communication
    Autorzy:
    Aydogan, T.
    Ozcelik, I.
    Erturk, I.
    Ekiz, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1070442.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    01.20.+X
    07.05.TP
    Opis:
    The implementation of the remote control, monitoring and maintenance of industrial automation systems based on real-time criteria is becoming more difficult as the distance increases. ATM is an important transport, switching, network management and backbone technology that offers different solutions to real-time communication with different classes of service. In this study, the effects on real-time communication of AAL 3/4 and AAL 5 classes of service of ATM were researched on a model in which the communication between WorldFIP industrial network nodes and ATM network nodes was provided over a bridge. First, a communication system consisting of a WorldFIP network, ATM network and bridge were modeled on a simulation tool and implemented. Afterwards, the system performance was analyzed under different loads within the classes of service AAL 3/4 and AAL 5. The analysis results have indicated that compared to AAL 5, AAL 3/4 better satisfies the real-time communication criteria. This result has shown that in both real-time access to a remote industrial automation systems and communication among remote industrial automation systems, ATM is preferable as a backbone and AAL 3/4 as the class of service.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 412-416
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structure and Soft Magnetic Properties of the Amorphous Alloys: Fe61Co10Ti3-xY6+xB20 (x = 0,1)
    Autorzy:
    Błoch, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/354790.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    structure
    soft magnetic properties
    amorphous alloys
    Opis:
    This paper presents studies relating to the structure, soft magnetic properties and thermal stability of the following bulk amorphous alloys: Fe61Co10Ti3-xY6+xB20 (x = 0, 1). On the basis of the performed X-ray diffraction studies and Mössbauer spectroscopy, it was found that investigated samples were amorphous in the as-cast state. The DSC curve obtained for Fe61Co10Ti2Y7B20 alloy exhibited one exothermic peak, while for the Fe61Co10Ti3Y6B20 sample, two peaks were distinguishable. The change in the chemical structure of the investigated alloys has a major effect on their soft magnetic properties; especially on coercivity and saturation magnetization. On the basis of the magnetization curves analysis, the spin wave stiffness parameter Dsp were determined for the investigated alloys.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 1; 445-450
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Experimental Study on Unipolar Induction
    Autorzy:
    Chen, K.
    Li, X.
    Hui, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030345.pdf
    Data publikacji:
    2017-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    01.55.+b
    03.50.De
    06.30.Ka
    41.20.Gz
    Opis:
    Unipolar induction phenomenon is a special kind of electromagnetic induction. There are two quite opposite theoretical explanations for this phenomenon, i.e., the N theory and the M theory. The research of unipolar induction has made significant progress, but there is no final conclusion by now. In this paper, an experiment of inversely rotating double Faraday disks and double magnets are designed, and the unipolar induction phenomenon is verified by means of theoretical calculation and experiment. Comparing and analyzing the theoretical calculation and experiment results, our experimental results support the N theory, that is to say, our experiment shows that the magnetic field does not rotate when the magnet rotates.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 2; 271-274
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lattice Dynamical Calculations for $Li_{1+x}Ti_{2-x}O_4$ (x=0.33) and $Li_{1-y}Mg_{y}Ti_2O_4$ (y=0.1, 0.3)
    Autorzy:
    Kushwaha, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399286.pdf
    Data publikacji:
    2013-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    63.20.-e
    Opis:
    Zone-centre Raman and infrared phonon frequencies for the spinel phases of oxides $Li_{1+x}Ti_{2-x}O_4$ (x=0.33) and $Li_{1-y}Mg_{y}Ti_2O_4$ (y=0.1, 0.3) of space group Fd3m have been calculated using a proposed short-range force constant model. In this model, the lattice potential energy is expanded using Taylor's expansion in the harmonic approximation. The calculated zone-centre phonon frequencies are in good agreement with the available experimental and previously calculated results.
    Źródło:
    Acta Physica Polonica A; 2013, 124, 4; 695-697
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetic Properties of the Rapidly Solidified Bulk Alloy: $Fe_{61}Co_{10}B_{20}Y_{8-x}W_{y}Pt_{x}$ (where: x=1,2; y=0,1)
    Autorzy:
    Pietrusiewicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1397021.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.43.Dq
    75.50.Gg
    75.50.Tt
    75.30.Kz
    75.60.Ej
    Opis:
    In the literature, research into rapidly cooled Pt-based alloys usually features samples that are produced in the form of thin ribbons. This work presents the effect of the addition of a small quantity of W and Pt on the magnetic properties of massive two-phase alloys, the samples being produced in the form of plates with a thickness of 0.5 mm. Both amorphous and crystalline phases were observed in the alloys, the phase proportions depending on the composition of the alloy. Generally, it is assumed that alloys with added Pt are characterised by a relatively high saturation magnetization and magnetocrystalline anisotropy, which is mainly influenced by the presence of the crystalline phases: FePt and Fe₃Pt. For the investigated alloys, it was noted that the gradual substitution of W and Pt in place of Y within the alloy $Fe₆₁Co₁₀B₂₀Y_{8-x}W_{y}Pt_{x}$ increased the value of saturation magnetization $(μ₀M_{s})$ and reduced the coercive field $(H_{c})$. On the basis of XRD pattern analysis it was found that, within the sample with the highest concentration of Pt, there are crystallites of the smallest size and the proportion of the α-Fe crystalline phase is much greater than for the other studied samples.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 666-668
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electrical Properties of Co-Doped Ceria Electrolyte $Ce_{0.8-x}Gd_{0.2}Sr_{x}O_{2-δ}$ (0.0 ≤ x ≤ 0.1)
    Autorzy:
    Ramesh, S.
    Vishnuvardhan Reddy, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/1808028.pdf
    Data publikacji:
    2009-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    65.40.De
    66.10.Ed
    81.20.Fw
    82.45.Gj
    82.47.Ed
    82.45.Xy
    Opis:
    Effects of strontium doping on electrical properties of gadolinium-doped ceria were investigated. The $Ce_{0.8-x}Gd_{0.2}Sr_{x}O_{2-δ}$ (0.0 ≤ x ≤ 0.1) compositions were prepared by sol-gel method and sintered at 1300°C for 8 h, the bulk densities were over 93% of theoretical density. These results were consistent with scanning electron microscope. The crystallite size of these materials was determined using the X-ray powder diffractometer and the sizes range from 19.4 nm to 24.4 nm. From the experimental results, it was observed that the composition $Ce_{0.8-x}Gd_{0.2}Sr_{x}O_{2-δ}$ (x=0.02) exhibits higher conductivity (23.6× $10^{-3}$ S $cm^{-1}$) and minimum activation energy (0.83 eV) at 700°C. This composition is thus a potential candidate for use as electrolyte applications in intermediate temperature solid oxide fuel cells.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 5; 909-913
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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