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Wyszukujesz frazę "Petukhov, A." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Multiband Electronic Structure of Magnetic Quantum Dots: Numerical Studies
    Autorzy:
    Rederth, D.
    Oszwałdowski, R.
    Petukhov, A.
    Pientka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1029747.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.21.La
    73.22.-f
    75.50.Pp
    Opis:
    Semiconductor quantum dots (QDs) doped with magnetic impurities have been a focus of continuous research for a couple of decades. A significant effort has been devoted to studies of magnetic polarons (MP) in these nanostructures. These collective states arise through exchange interaction between a carrier confined in a QD and localized spins of the magnetic impurities (typically: Mn). Our theoretical description of various MP properties in self-assembled QDs is discussed. We present a self-consistent, temperature-dependent approach to MPs formed by a valence band hole. The Luttinger-Kohn k· p Hamiltonian is used to account for the important effects of spin-orbit interaction.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 343-349
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the absorbing pervaporation technique for ammonia recovery after the haber process
    Autorzy:
    Atlaskin, A.
    Petukhov, A. N.
    Yanbikov, N. R.
    Salnikova, M.E.
    Sergeeva, M. S.
    Vorotyntsev, V. M.
    Vorotyntsev, I. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/184857.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    gas separation
    absorbing pervaporation
    ammonia
    process intensification
    membrane
    separacja gazów
    amoniak
    intensyfikacja procesu
    membrana
    Opis:
    A novel absorbing pervaporation hybrid technique has been evaluated experimentally for the recovery of ammonia from the gas mixture in a recycle loop of synthesis plants. This process of hybridization brings together the combination of energy-efficient membrane gas separation based on poly(dimethylsiloxane) poly(diphenylsilsesquioxane) with a high selective sorption technique where a water solution with polyethylene glycol 400 (PEG-400) was used as the liquid absorbent. Process efficiency was studied using the pure and mixed gases. The influence of PEG-400 content in aqueous solutions on process selectivity and separation efficiency was studied. The ammonia recovery efficiency evaluation of an absorbing pervaporation technique was performed and compared with the conventional membrane gas separation. It was shown that the absorbing pervaporation technique outperforms the conventional membrane method in the whole range of productivity, producing the ammonia with a purity of 99.93 vol.% using the PEG 80 wt.% solution. The proposed method may be considered as an attractive solution in the optimization of the Haber process.
    Źródło:
    Chemical and Process Engineering; 2018, 39, 3; 323--333
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Practice of Geobotanical Indication of Forest Growth Conditions in the Steppe and Wooded Steppe Ecotone in Central Mongolia
    Autorzy:
    Gunin, Petr D.
    Bazha, Sergey N.
    Miklyaeva, Inessa M.
    Karimova, Tatiana Y.
    Petukhov, Igor A.
    Andreev, Anatoly V.
    Bogdanov, Evgenij A.
    Tsyrempilov, Enkhe G.
    Powiązania:
    https://bibliotekanauki.pl/articles/124792.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    Baikal catchment basin
    ecosystems
    belt groups of plants
    zonal groups of plants
    environmental conditions
    humidity factor
    Opis:
    The forest conditions in the Central Aimag of Mongolia, located in the southern part of the Baikal catchment area, near the southern border of the forest-steppe subzone, were examined within the framework of this study. The field materials collected in the summer 201–2018 at the Zuunmod Model polygon serve as the core of the study. An ecosystem map of the Model polygon with the scale 1:50 000 and the Key plot with the scale 1:5 000 was drawn up using World Viеw-2 satellite imagery data (2016). The proven method of botanical indication of forest growth conditions is as follows: identification of the ecologic and coenotic groups of plant species, calculation of the moisture coefficient based on the ratio of the number of species included in the groups characterizing the extreme conditions of the moisture gradient and distribution of communities in accordance with the values of the gradient in the ecological series. Communities of stages of ecological series serve as indirect indicators of the forest conditions: Stage I: Кu <1, insufficient humifying for tree growth, Stage II: Кu 1–2, average humifying, Stage III: Кu >2, sufficient humifying for tree growth. The stages also correspond to the landscape conditions and the character of the vegetation cover.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 2; 10-21
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phase-difference methods of study travel time fluctuations of the broadband signal
    Autorzy:
    Kazarova, A. Y.
    Lyubavin, L. Y.
    Petukhov, Y. V.
    Stromkov, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/332209.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Akustyczne
    Opis:
    Phase-difference methods for a measurement of small time intervals by use of pseudorandom signals are suggested and its applications for processing of experimental data. The significant influence of tidal oscillations on travel time at Hawaii - Kamchatka path is shown. The possibility of an evaluation of the form of a flexible antenna without use of special basic sources is demonstrated.
    Źródło:
    Hydroacoustics; 2000, 3; 201-204
    1642-1817
    Pojawia się w:
    Hydroacoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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