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  1. No Access

    Article

    On Some Relationships between Records in the Transition from Continuous to Discrete Distributions

    In the present work, we consider discretization of continuous distributions and study relations between continuous record values, weak record values and discrete record values obtained from continuous record v...

    M. Ahsanullah, V. B. Nevzorov in Vestnik St. Petersburg University, Mathematics (2022)

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    Chapter

    Methods for Determination and Calculation of Deflections of the Vertical

    This Chapter is devoted to determination of deflections of the vertical (DOV). A general overview of DOV determination methods on a moving base is provided. The methods addressed include the gravimetric method...

    I. Chelpanov, M. Evstifeev, V. Koneshov in Methods and Technologies for Measuring the… (2022)

  3. No Access

    Article

    Subgroups of Chevalley Groups Over Rings

    Let R be a commutative ring. The lattice of subgroups of a Chevalley group G(Φ,R) containing the subgroup D(R) is studied, where D is a subfunctor of G(Φ, ). Assuming that over any field F the normalizer of the...

    R. Lubkov, A. Stepanov in Journal of Mathematical Sciences (2021)

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    Article

    North-east bivariate records

    Bivariate records have many application in different fields such as hydrology, economy, finance and weather forecasting; see, for example, the works of Bayramoglu (Metrika 79:725–747, 2016) and Kemalbay and Ba...

    N. Balakrishnan, A. Stepanov, V. B. Nevzorov in Metrika (2020)

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    Article

    On the Use of Bivariate Mellin Transform in Bivariate Random Scaling and Some Applications

    We discuss here the problem of bivariate random scaling. Both direct and inverse problems of bivariate random scaling are solved by two methods. While the first method is a distributional one, the second metho...

    N. Balakrishnan, A. Stepanov in Methodology and Computing in Applied Probability (2014)

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    Chapter and Conference Paper

    SDO in Pulkovo Observatory

    We discuss effective applications of data obtained by both instruments of the Solar Dynamics Observatory: The Helioseismic & Magnetic Imager (HMI) and The Atmospheric Imaging Assembly (AIA). The purpose of thi...

    E. Benevolenskaya, S. Efremov, V. Ivanov, N. Makarenko in The Sun: New Challenges (2012)

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    Article

    Calculations in exceptional groups over rings

    In the present paper, we discuss a major project whose goal is to develop theoretical background and working algorithms for calculations in exceptional Chevalley groups over commutative rings. We recall some b...

    A. Luzgarev, A. Stepanov, N. Vavilov in Journal of Mathematical Sciences (2010)

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    Article

    Study of the neutron halo structure in interaction of 6He with nuclei of photoemulsion

    To investigate the structure of the halo of Borromean nuclei, we have studied quasi-free scattering of the proton by constituents of halo-nuclei 6He. The experimental study is performed using the 6He beam of the ...

    E. Konobeevski, G. Belovitsky, A. Stepanov, V. Zavarzina, S. Zuyev in Few-Body Systems (2008)

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    Article

    Study of the structure of neutron halo using neutron transfer reaction

    To estimate the probability of two-neutron configurations in halo nuclei, we propose an experimental method of studying neutron-neutron correlations at periphery of such nuclei by measuring two-neutron transf...

    G. Belovitsky, E. Konobeevski, A. Stepanov in The European Physical Journal Special Topi… (2007)

  10. No Access

    Article

    A warm layer in Venus' cryosphere and high-altitude measurements of HF, HCl, H2O and HDO

    ESA's Venus Express probe has been in orbit since April 2006. Eight research papers in this issue present new results from the mission, covering the atmosphere, polar features, interactions with the solar wind...

    Jean-Loup Bertaux, Ann-Carine Vandaele, Oleg Korablev, E. Villard, A. Fedorova in Nature (2007)

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    Article

    Rare-earth solid-state qubits

    Quantum bits (qubits) are the basic building blocks of any quantum computer. Superconducting qubits have been created with a top-down approach that integrates superconducting devices into macroscopic electrica...

    S. Bertaina, S. Gambarelli, A. Tkachuk, I. N. Kurkin, B. Malkin in Nature Nanotechnology (2007)

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    Article

    The number of records within a random interval of the current record value

    LetX 1,X 2, … be a sequence of i.i.d. random variables with some continuous distribution functionF. LetX(n) be then-th record value associated with this sequence an...

    A. Stepanov in Statistical Papers (2007)

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    Chapter and Conference Paper

    RESEARCH OF RADIOACTIVE CONTAMINATIONS OF THE BALTIC SEA WITHIN THE HELCOM PROGRAMS

    For the countries surrounding the Baltic Sea, the problems connected to radioactive contamination of this closed sea of the Northern Europe with its the lowest ability for self-cleaning are very urgent. For 80...

    A. STEPANOV, V. TISHKOV, Y. PANTELEEV in Radiation and Environmental Safety in Nort… (2006)

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    Article

    The “SKATE” CO2 Gigawatt Laser for a Laser-Plasma Generator of Ions and Nuclei

    A set-up of the CO2 “SKATE” and its output characteristics are described. The system is based on a self-sustained gas discharge module with x-ray preionization that ensures reliability and stable repetition rate ...

    Yu. Satov, B. Sharkov, Yu. Smakovski, K. Makarov in Journal of Russian Laser Research (2004)

  15. No Access

    Article

    High-Power CO2 Laser System with Repetition Rate Operation for High Current Multicharged Heavy Ion Generations

    Experimental and numerical calculation results devoted to development of an optical system for an ion source based on a repetition rate CO2 laser are described. The laser chain consists of a master oscillator, ga...

    Yu. Satov, B. Sharkov, H. Haseroth, Yu. Smakovski in Journal of Russian Laser Research (2004)

  16. No Access

    Article

    Conditional moments of record times

    Conditional moments of record times when record values are fixed, are being studied in the paper

    A. Stepanov in Statistical Papers (2003)

  17. No Access

    Article

    Optical and electrical properties of hydrogenated yttrium nanoparticles

    We studied the effect of hydrogen in yttrium nanoparticles on a quartz substrate, using optical spectroscopy and electrical resistance measurements. Pulsed laser deposition is used to obtain the Y clusters in ...

    G. Bour, A. Reinholdt, A. Stepanov in The European Physical Journal D - Atomic, … (2001)

  18. No Access

    Article

    Pseudo-gap and possible Spin-Peierls transition in the vanadium oxide VOSb 2 O 4

    We report on the magnetic susceptibility and electron spin resonance measurements on polycrystalline samples of the vanadium oxide VOSb2O4, a quasi-one-dimensional S = 1/2 Heisenberg system. The susceptibility v...

    V.A. Pashchenko, A. Sulpice, F. Mila in The European Physical Journal B - Condense… (2001)

  19. No Access

    Article

    Magnetic properties of the S = 1/2 one-dimensional antiferromagnet MgVO

    The magnetic susceptibility and the electron spin resonance in the X-band of the transition metal oxide compound MgVO3 are reported. We show that this compound, made of weakly coupled infinite chains of VO5 pyram...

    J. Choukroun, V.A. Pashchenko, Y. Ksari, J.Y. Henry in The European Physical Journal B (2000)

  20. No Access

    Article

    On the 240 K anomaly in the magnetic properties of LiNiO2

    In this work, results of X-band ESR spectroscopy, ac-magnetic susceptibility and X-ray powder diffraction measurements on Li1-xNi 1+x O2 (x = 0.02 and x = 0.07) are presented a...

    F. Reynaud, A.M. Ghorayeb, Y. Ksari in The European Physical Journal B - Condense… (2000)

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