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  1. No Access

    Article

    Solution Combustion Synthesis of ZnO Undoped and Doped with Fe, Co, Cu, and Mg Using Citric Acid as a Fuel for Photocatalytic Decomposition of Phenol

    The solution combustion synthesis (SСS) was used to prepare ZnO from mixtures of solutions of zinc nitrate (oxidizer) and citric acid (fuel) with different fuel-to-oxidizer ratio, as well as for do** ZnO wit...

    A. P. Amosov, V. A. Novikov, E. M. Kachkin… in International Journal of Self-Propagating … (2023)

  2. No Access

    Article

    One-Sided Selfish Parking

    The present paper considers a discrete analog of the parking problem.

    N. A. Kryukov in Journal of Mathematical Sciences (2023)

  3. No Access

    Article

    Asymptotic Normality in a Discrete Analog of the Parking Problem

    The behavior of higher-order central moments in the discrete version of the “parking problem” is studied. For these moments, the asymptotic behavior is obtained as the length of the filled segment increases wi...

    S. M. Ananjevskii, N. A. Kryukov in Journal of Mathematical Sciences (2022)

  4. No Access

    Article

    Discretization of the Parking Problem

    This paper considers a natural discretization of the Rényi problem known as the “parking problem.” Let l, n, and i be integers such that l ≥ 2, n ≥ 0, and 0 ≤ i ≤ n − l. We place an open interval (i, i + l) in th...

    N. A. Kryukov in Vestnik St. Petersburg University, Mathematics (2021)

  5. No Access

    Article

    Asymptotic Normality in the Problem of Selfish Parking

    We continue in this paper to study one of the models of a discrete analog of the Renyi problem, also known as the parking problem. Suppose that n and i are integers satisfying n ≥ 0 and 0 ≤ i ≤ n – 1. We place an...

    S. M. Ananjevskii, N. A. Kryukov in Vestnik St. Petersburg University, Mathematics (2019)

  6. No Access

    Article

    On Asymptotic Normality in One Generalization of the Renyi Problem

    We consider a generalization of the well-known problem to randomly fill a long segment by unit intervals. On the segment [0, x], x ≥ 1, we place an open unit interval according to the Fx distribution law, which i...

    S. M. Ananjevskii, N. A. Kryukov in Vestnik St. Petersburg University, Mathematics (2019)

  7. No Access

    Article

    Influence of the Density of Buffer Gas Atoms on the Shape of the HgXe(A30+) → HgXe(X10+) Excimer Band

    The reasons for the discrepancies between the experimental data on the shape of long-wavelength continua near the 63P1 → 61S0 resonance line of a mercury atom in a xenon atmosphere obtained by different authors a...

    A. Z. Devdariani, A. L. Zagrebin, N. A. Kryukov, M. G. Lednev… in Optics and Spectroscopy (2019)

  8. No Access

    Article

    The Problem of Selfish Parking

    One of the models of discrete analog of the Rényi problem known as the “parking problem” has been considered. Let n and i be integers, n ≥ 0, and 0 ≤ i ≤ n–1. Open interval (i, i + 1), where i is a random variabl...

    S. M. Ananjevskii, N. A. Kryukov in Vestnik St. Petersburg University, Mathematics (2018)

  9. No Access

    Article

    Optical properties of layers of ultradisperse diamond obtained from an aqueous suspension

    The possibility of obtaining thin (1500–3000 Å) layers of ultradisperse diamond from an aqueous suspension is reported and the first results of studies of its optical properties are presented. It is deduced fr...

    A. E. Aleksenskii, V. Yu. Osipov, N. A. Kryukov… in Technical Physics Letters (1997)