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Wyszukujesz frazę "Petrov, E." wg kryterium: Autor

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Modification of the Spontaneous Emission of Dye Molecules in Photonic Crystals
    Autorzy:
    Petrov, E.
    Bogomolov, V.
    Kalosha, I.
    Gaponenko, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1992744.pdf
    Data publikacji:
    1998-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.50.-p
    Opis:
    Modification of the spontaneous emission of dye molecules embedded in artificial opals exhibiting stop bands in the visible range is observed. Molecules embedded in artificial opals show dips in spontaneous emission spectra and modified fluorescence decay kinetics. Results are interpreted in terms of redistribution of the photon density of states. Effects of the multiple reabsorption and reemission of fluorescence photons and interaction of dye molecules with the silica surface are discussed.
    Źródło:
    Acta Physica Polonica A; 1998, 94, 5-6; 761-771
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calorimetric studies of the energy deposition on a material surface by plasma jets generated with QSPA and MPC devices
    Autorzy:
    Chuvilo, A. A.
    Garkusha, I. E.
    Makhlaj, V. A.
    Petrov, Y. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/147706.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    quasi steady-state plasma accelerator (QSPA)
    energy density
    heat load
    plasma streams
    plasma-surface interaction
    Opis:
    Studies of the energy deposition by plasma jets incident on a material surface are of topical interest for both the fusion and plasma technology applications. In this paper the results are reported of a comparative study of plasma energy deposition on different material surfaces exposed to plasma jets of various duration and energy density, generated using the QSPA Kh-50 and the MPC devices. The spatial distribution of plasma energy density and the heat load on the surface were measured with a movable calorimeter. The measurements demonstrate that in the case of an exposure to QSPA plasma jets the absorbed heat load is approximately equal to 55-60% of the energy in the incident plasma jet. In the case of plasma jets generated using the MPC device the heat load on the target surface and was practically the same as for the QSPA jets, and additional shielding effects were found to be negligible due to the short duration of plasma jets.
    Źródło:
    Nukleonika; 2012, 57, 1; 49-53
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dense plasma source development and jet injection in Globus-M*
    Autorzy:
    Voronin, , V. A.
    Gusev, V. K.
    Petrov, Y. V.
    Mukhin, E. E.
    Tolstyakov, S. Y.
    Kurskiev, G. S.
    Kochergin, M. M.
    Hellblom, K. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/147768.pdf
    Data publikacji:
    2008
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    plasma gun
    spherical tokamak
    fuelling system
    Opis:
    Progress in the development of a plasma jet source and its utilization for injection of hydrogen plasma and neutral gas jets into the Globus-M spherical tokamak are presented. The latest version of the high kinetic energy gas and plasma jet source with titanium hydride grains is described. Reproducibility of the gas jet generation was increased due to automatic loading of fresh grains into the source before every shot. It allows producing stable gas release for many discharges. Impurity radiation intensity from the plasma jet was decreased by more than 100 times by preliminary processing titanium hydrate grains and developing a new filter. The result of special experiments on two colliding jets is discussed. It was confirmed that the plasma jet recombines into a gas jet after it escapes the source edge and has a kinetic energy higher than the hydrogen ionization potential. Hydrogen plasma jet with low impurity content has a density up to 2 × 1022 m-3, a total number of accelerated particles (1-5) × 1019 and a flow velocity of ~ 200 km/s. It was used as an instrument for density control in Globus-M. Jet injection into deuterium plasma core during current plateau phase led to fast density increase in all spatial points of the plasma column including the plasma central region. Such injection allowed density doubling in the tokamak plasma. The model predictions are consistent with the experimental observations of the density raise recorded by the interferometer and Thomson scattering.
    Źródło:
    Nukleonika; 2008, 53, 3; 103-109
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    (Nano) technology for managing plant organisms with the help of targeted impact using the signals of the physical nature
    Autorzy:
    Karpachev, V.V.
    Voropaeva, N.L.
    Belonozhkina, T.G.
    Naumov, E.V.
    Vasilev, M.M.
    Petrov, O.F.
    Figovsky, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/10815.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    One of the major problems of agricultural production has been to improve the sowing qualities of seeds to increase yields of various crops. In this regard, of particular interest is the control technology of vegetable organisms by "address the impact of" signals of the physical nature. Plasma treatment of seeds influences the growth and development of the amaranth. The effectiveness of treatment depends on the exposure time of the exposure. The largest positive treatment effect of the plasma on the growth, development and yield of amaranth has been observed when the exposure 60 seconds, leading to increased yields.
    Źródło:
    International Letters of Natural Sciences; 2015, 05
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Population Loss in Closed Optical Transitions οf Rb and Cs Atoms Confined in Micrometric Thin Cells
    Autorzy:
    Biancalana, V.
    Cartaleva, S.
    Dancheva, Y.
    Gosh, P.
    Mariotti, E.
    Mitra, S.
    Moi, L.
    Petrov, N.
    Ray, B.
    Sarkisyan, D.
    Slavov, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1791199.pdf
    Data publikacji:
    2009-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    32.30.-r
    32.70.Jz
    Opis:
    We present the first experimental observation of narrow dips in the fluorescence profiles of completely closed hyperfine transitions in Rb vapor at high atomic density, which is attributed to the depolarization of the excited state. Moreover, at low atomic density, a narrow peak on the top of the fluorescence profile is demonstrated, centered at the completely closed transition within the $D_{2}$ line of Cs. Experiments are performed in thin (700 μm) alkali cell by single light beam spectroscopy. The cell is filled with Cs containing a small portion of Rb.
    Źródło:
    Acta Physica Polonica A; 2009, 116, 4; 495-497
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of dense plasma streams generated by MPC and their interaction with material surfaces
    Autorzy:
    Makhlaj, V. A.
    Chebotarev, V. V.
    Chuvilo, A. A.
    Garkusha, I. E.
    Ladygina, M. S.
    Marchenko, A. K.
    Petrov, Y. V.
    Solyakov, D. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/147528.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    magneto-plasma compressor (MPC)
    gas-discharge plasma
    plasma streams
    mixture gas
    EUV radiation
    surface damage
    Opis:
    Comparative studies of the parameters both pure helium and helium-xenon plasma have been fulfilled in a magneto-plasma compressor (MPC). The current-voltage characteristics of MPC accelerating channel and the maximum plasma velocity of (6-8) x 106 cm/s changed negligibly under local xenon injection to compression zone. Nevertheless, the xenon addition causes a growth of maximal plasma pressure up to of 2.3 MPa, an increase of plasma radiation from the compression zone. The plasma density achieved 1018 cm.
    Źródło:
    Nukleonika; 2012, 57, 2; 197-200
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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