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Wyszukujesz frazę "Ivanov, A.V." wg kryterium: Autor

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Distribution of Excess Regenerative Energy in Electric Transport Systems on the Basis of Fuzzy Logic Application
    Autorzy:
    Sablin, O.
    Kuznetsov, V.
    Shinkarenko, V.
    Ivanov, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/223524.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    electric transport
    regeneration of the electric power
    stores
    inverters
    regulation of voltage
    traction
    external power supply
    fuzzy logic
    transport elektryczny
    regeneracja energii elektrycznej
    magazyny
    falowniki
    regulacja napięcia
    trakcja
    zasilanie zewnętrzne
    logika rozmyta
    Opis:
    Purpose. To develop the fuzzy model of distribution of excess regenerative energy in traction and external power supply systems allowing to exercise effective operation of the power equipment. Relevance. For effective distribution of excess regenerative energy in systems of electric transport, as well as for systems equipped with stationary stores of energy and inverting traction substations with regulators of output voltage it is necessary to solve a number of the problems with high degree of uncertainty demanding taking into account a set of random factors such as the modes of power lines and traction loadings. These factors have to be considered in operation for choosing the rational modes of energy stores, inverters and regulators of voltage on buses of substations to provide the rational conditions for energy regeneration on electric transport. Scientific novelty. The control system of energy storage devices, inverters and traction substation output voltage regulators, designed on the basis of fuzzy logic, can provide the necessary conditions for the regeneration on electric transport on sections with a shortage of traction power consumption and allows to optimize the distribution of excess braking energy of transport vehicles. It is achieved by determining the rational relationship between the components of the excess current of regeneration in real time, which can ensure a minimum of power losses of regenerative energy in traction and external power supply systems. Practical importance. The use of the developed approach is effective under the conditions of incomplete information received by measurement systems and on the basis of additional studies it can allow to minimize rated capacity of stores, inverters and traction substation output voltage regulators that could reduce the costs of modernization of existing sections and electrification of new electric transport systems.
    Źródło:
    Archives of Transport; 2017, 42, 2; 53-63
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chondrichthyan spines from the Famennian (Upper Devonian) of Russia
    Autorzy:
    Lebedev, Oleg A.
    Ivanov, Alexander O.
    Linkevich, Valeriy V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1835588.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    chondrichthyes
    Ctenacanthiformes
    Euselachii
    Fin spines
    Famennian
    Devonian
    Russia
    ryby chrzęstnoszkieletowe
    famen
    dewon
    Rosja
    Opis:
    Very rare chondrichthyan spines from the Famennian (Upper Devonian) of European Russia are referred here to ctenacanthiforms, euselachians and a chondrichthyan group of uncertain systematic position. Ctenacanthus Agassiz, 1837 is recorded from the lower and middle Famennian of the central and north-western parts of the area. Sculptospina makhlaevi Lebedev gen. et sp. nov. originates from the lower Famennian of the Lipetsk Region. The holotype of ‘Ctenacanthus’ jaekeli Gross, 1933 and a new specimen from the upper Famennian of the South Urals are shown to belong to the same taxon, which is transferred to Acondylacanthus St. John and Worthen, 1875. New specimens of Tuberospina nataliae Lebedev, 1995 from the upper Famennian of Central Russia are described in detail. The newly presented material increases our knowledge of the composition of Famennian marine assemblages from the East European Platform. It is suggested that these assemblages may be classified as chondrichthyan-dominated and dipnoan-dominated. Hypothetically, after the end- Devonian Hangenberg extinction event, which affected numerous secondary consumers in vertebrate communities, some chondrichthyan groups could have encroached to take advantage of previously occupied ecological niches. Ctenacanthus, as well as Acondylacanthus and Amelacanthus survived the end-Devonian mass extinction to continue into the Carboniferous.
    Źródło:
    Acta Geologica Polonica; 2020, 70, 3; 339-362
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chondrichthyan spines from the Famennian (Upper Devonian) of Russia
    Autorzy:
    Lebedev, Oleg A.
    Ivanov, Alexander O.
    Linkevich, Valeriy V.
    Powiązania:
    https://bibliotekanauki.pl/articles/139186.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    chondrichthyes
    Ctenacanthiformes
    Euselachii
    Fin spines
    Famennian
    Devonian
    Russia
    ryby chrzęstnoszkieletowe
    famen
    dewon
    Rosja
    Opis:
    Very rare chondrichthyan spines from the Famennian (Upper Devonian) of European Russia are referred here to ctenacanthiforms, euselachians and a chondrichthyan group of uncertain systematic position. Ctenacanthus Agassiz, 1837 is recorded from the lower and middle Famennian of the central and north-western parts of the area. Sculptospina makhlaevi Lebedev gen. et sp. nov. originates from the lower Famennian of the Lipetsk Region. The holotype of ‘Ctenacanthus’ jaekeli Gross, 1933 and a new specimen from the upper Famennian of the South Urals are shown to belong to the same taxon, which is transferred to Acondylacanthus St. John and Worthen, 1875. New specimens of Tuberospina nataliae Lebedev, 1995 from the upper Famennian of Central Russia are described in detail. The newly presented material increases our knowledge of the composition of Famennian marine assemblages from the East European Platform. It is suggested that these assemblages may be classified as chondrichthyan-dominated and dipnoan-dominated. Hypothetically, after the end- Devonian Hangenberg extinction event, which affected numerous secondary consumers in vertebrate communities, some chondrichthyan groups could have encroached to take advantage of previously occupied ecological niches. Ctenacanthus, as well as Acondylacanthus and Amelacanthus survived the end-Devonian mass extinction to continue into the Carboniferous.
    Źródło:
    Acta Geologica Polonica; 2020, 70, 3; 339-362
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Photoproduction of organic peroxides on the donor side of photosystem II after destruction of the water-oxidizing complex
    Autorzy:
    Khorobrykh, A.
    Khorobrykh, S.
    Yanykin, D.
    Ivanov, B.
    Klimov, V.
    Mano, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/79884.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    manganese
    photosystem II
    water oxidizing complex
    photooxidation
    organic molecule
    fluorescence probe
    photoinhibition
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dispersion of Al-Si Alloy Structure by Intensive Pulsed Electron Beam
    Autorzy:
    Konovalov, S.
    Gromov, V.
    Zaguliyaev, D.
    Ivanov, Y.
    Semin, A.
    Rubannikova, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/381713.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    silumin
    structure Al-Si
    electron beam processing
    crystallization cells
    dispersion
    struktura Al-Si
    obróbka wiązką elektronową
    krystalizacja
    dyspersja
    Opis:
    By the method of modern physical material science (optic microscopy scanning and transmission electron microscopy) the analysis of structural phase states, the morphology of the second phase inclusions and defect substructure of Al-Si alloy (silumin) of hypoeutectic composition, subjected to electron beam processing was done with the following parameters: energy density 25-35 J/cm2, beam length 150 μs, pulse number – 3, pulse repetition rate – 0.3 Hz, pressure of residual gas (argon) 0.02 Pa. The surface irradiation results in the melting of the surface layer, the dissolution of boundary inclusions, the stricture formation of high speed cellular crystallization of submicron sizes, the repeated precipitation of the second phase nanodimentional particles. With the increased distance from the irradiation surface the layer containing the second phase inclusions of quasi-equilibrium shape along with the crystallization cells was revealed. It is indicative of the processes of Al-Si alloy structure globalization on electron beam processing.
    Źródło:
    Archives of Foundry Engineering; 2019, 2; 79-84
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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