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Research agenda for the Russian Far East and utilization of multiplatform comprehensive environmental observations

International Journal of Digital Earth 2021年第3期14卷 311-337页

作者： Tuukka Petäjä Kirill S.ganzei Hanna K.Lappalainen Ksenia Tabakova Risto Makkonen Jouni Räisänen Sergey Chalov Markku Kulmala Sergej Zilitinkevich Petr Ya Baklanov Renat B.Shakirov Natalia V.Mishina evgeny g.egidarev Igor I.Kondrat’ev Institute for Atmospheric and Earth System Research/Physics Faculty of ScienceUniversity of HelsinkiHelsinkiFinland Department of Cryosphere Tyumen State University TyumenRussia Pacific geographical Institute of the Far Eastern Branch of Russian Academy of Sciences VladivostokRussia Finnish Meteorological Institute HelsinkiFinland Faculty of geography Lomonosov Moscow State UniversityMoscowRussia V.I.Ilyichov Pacific Oceanological Institute of the Far Eastern Branch of Russian Academy of Sciences VladivostokRussia

The Russian Far East is a region between China and the Russian Arctic with a diverse climatological,geophysical,oceanic,and economical *** southern region is located in the Far East monsoon sector,while the northern parts are affected by the Arctic Ocean and cold air masses penetrating far to the *** economic activities and traffic connected to the China Belt and Road Initiative together with climate change are placing an increased pressure upon the Russian Far East *** is an urgent need to improve the capacity to measure the atmospheric and environmental pollution and analyze their sources and to quantify the relative roles of local and transported pollution emissions in the *** the paper,we characterize the current environmental and socio-economical landscape of the Russian Far East and summarize the future climate scenarios and identify the key regional research *** discuss the research infrastructure concept,which is needed to answer the identified research *** integrated observations,filling in the critical observational gap at the Northern Eurasian context,are required to provide state-of-the-art observations and enable follow-up procedures that support local,regional,and global decision making in the environmental context.

关键词： Russian Far East greenhouse gases aerosol particles insitu observations Earth observation data

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The Spin-up of a Star gaining Mass in a Close Binary System on the Thermal Time Scale

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Research in Astronomy and Astrophysics 2022年第10期22卷 158-164页

作者： evgeny Staritsin K.A.Barkhatova Kourovka Astronomical Observatory B.N.Yeltsin Ural Federal Universitypr.Lenina 51Ekaterinburg 620000Russia

We investigate the exchange of mass in a binary system as a channel through which a Be star can receive a rapid *** mass-transfer phase in a massive close binary system in the Hertzsprung-gap is accompanied by the spinning up of the accreting *** consider a case when the mass of the accreting component increases by 1.5 *** component acquires mass and angular momentum while in a state of critical *** angular momentum of the component increases by 50 *** circulation effectively transports angular momentum inside the component during the mass-transfer phase and during the thermal timescale after the end of the mass-transfer *** a result of mass transfer,the component acquires the rotation typical of classical Be stars.

关键词： (stars:)binaries(including multiple) close-stars emission-line,Be-stars rotation-stars early-type

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Formation of a Rapidly Rotating Classical Be-star in a Massive Close Binary System

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Research in Astronomy and Astrophysics 2024年第1期24卷 44-50页

作者： evgeny Staritsin K.A.Barkhatova Kourovka Astronomical Observatory B.N.Yeltsin Ural Federal Universitypr.Lenina 51Ekaterinburg 620000Russia

This paper investigates the spin-up of a mass-accreting star in a close binary system passing through the first stage of mass exchange in the Hertzsprung gap. Inside an accreting star, angular momentum is carried by meridional circulation and shear turbulence. The circulation carries part of the angular momentum of the accreted layers to the accretor's surface. The greater the rate of arrival of angular momentum in the accretor is, the greater this part. It is assumed that this part of the angular momentum can be removed by the disk further from the accretor. If the angular momentum in the matter entering the accretor is more than half the Keplerian value, then the angular momentum obtained by the accretor during mass exchange stage does not depend on the rate of arrival of angular momentum. The accretor may have the characteristics of a Be-star immediately after the end of mass exchange.

关键词： (stars:)binaries(including multiple):close stars:emission-line Be stars:early-type stars:rotation

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The Progenitors of Be-stars Paired with O-subdwarfs:The Spin-up of a Be Star at the Stage of Conservative Mass Exchange

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Research in Astronomy and Astrophysics 2024年第11期24卷 104-111页

作者： evgeny Staritsin K.A.Barkhatova Kourovka Astronomical Observatory B.N.Yeltsin Ural Federal Universitypr.Lenina 51Ekaterinburg 620000Russia

The spinning-up of the accreting component in the process of conservative mass exchange is considered in binary systems—progenitors of systems consisting of a main sequence Be-star and an *** the mass exchange,the meridional circulation transfers 80%-85%of the angular momentum that entered the accretor together with the accreted matter to the accretor *** angular momentum is removed from the accretor by the *** the mass exchange finishes,the accretor has a rotation typical of classical Be-type stars.

关键词： (stars:)binaries(including multiple) close-stars emission-line-Be-(stars:)binaries general

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Polariton polarization rectifier

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Light(Science & Applications) 2019年第1期8卷 505-514页

作者： evgeny S.Sedov Yuri g.Rubo Alexey V.Kavokin Westlake University 18 Shilongshan RoadHangzhou 310024 Zhejiang ProvinceChina Institute of Natural Sciences Westlake Institute for Advanced Study18 Shilongshan RoadHangzhou 310024 Zhejiang ProvinceChina Vladimir State University Gorky str.87Vladimir 600000Russia Instituto de Energias Renovables Universidad Nacional Autonoma de Mexico62580 TemixcoMORMexico Spin Optics Laboratory Saint Petersburg State University1 UlianovskayaSt.Petersburg 198504Russia

We propose a novel photonic device,the polariton polarization rectifier,intended to transform polariton pulses with arbitrary polarization into linearly polarized pulses with controllable orientation of the polarization *** is based on the interplay between the orbital motion of the polariton wave packet and the dynamics of the polariton pseudospin governed by the spatially dependent effective magnetic *** latter is controlled by the TE-TM splitting in a harmonic *** show that the unpolarized polariton pulse acquires linear polarization in the course of propagation in a harmonic *** gives the considered structure an extra function as a linear polarizer of polariton pulses.

关键词： field polarized harmonic

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Is the additional increase of star luminosity due to partial mixing real?

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Research in Astronomy and Astrophysics 2019年第3期19卷 3-6页

作者： evgeny Igorevich Staritsin K.A.Barkhatova Kourovka Astronomical Observatory B.N.Yeltsin Ural Federal University

The partial mixing of matter between the radiative envelope and convective core in an early Btype star produces an additional increase of star luminosity during main sequence evolution. High quality data on stellar mass and luminosity defined from studies of detached double-lined eclipsing binaries are used to check the existence of such additional increase. It is shown that the additional luminosity increase does not contradict observed high quality data, if the intensity of partial mixing is restricted by the observed increase in surface helium content.

关键词： stars structure and evolution

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Special Spectral Approach to Solutions of SISO LTI H-Optimization Problems

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International Journal of Automation and computing 2019年第1期16卷 112-128页

作者： evgeny I.Veremey Faculty of Applied Mathematics and Control Processes Saint-Petersburg State University

The paper is devoted to H-optimization problems for linear time invariant(LTI) systems with scalar control, external disturbance and measurement noise. All these problems can be numerically solved with the help of the well-known universal approaches based on Riccati equations, linear matrix inequalities(LMI) or maximum entropy technique. Nevertheless, in our opinion there exists a possibility to increase the computational efficiency of synthesis using a special spectral approach to the above mentioned problems in frequency domain. Some relevant details are discussed and efficient numerical algorithms are proposed for the practical implementation of spectral approach. One of its virtues is a possibility to present optimal solutions in a specific form, which is convenient for investigation.

关键词： Stabilizing controller performance index synthesis H-optimization spectral approach

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Bismuth-doped optical fibers: a challenging active medium for near-IR lasers and optical amplifiers

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Light(Science & Applications) 2012年第1期1卷 105-111页

作者： evgeny M Dianov The Fiber Optics Research Center of the Russian Academy of Sciences 119333 MoscowRussia

It has recently been demonstrated that Bi-doped glass optical fibers are a promising active laser *** types of Bi-doped optical fibers have been developed and used to construct Bi-doped fiber lasers and optical *** paper reviews the recent results regarding the luminescence properties of various Bi-doped optical fibers and the development of Bi-doped fiber lasers and optical amplifiers for the 1150 to 1550 nm spectral region.

关键词： amplifier bismuth fiber laser luminescence

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Optical information processing using dual state quantum dot lasers: complexity through simplicity

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Light(Science & Applications) 2021年第12期10卷 2307-2321页

作者： Bryan Kelleher Michael Dillane evgeny A.Viktorov Department of Physics University College CorkCorkIreland Tyndall National Institute University College CorkLee MaltingsDyke ParadeCork T12 R5CPIreland Centre for Advanced Photonics&Process Analysis Munster Technological UniversityBishopstownCork T12 P928Ireland National Research University of Information Technologies Mechanics and OpticsKronverksky Pr.49St.Petersburg 197101Russia

We review results on the optical injection of dual state InAs quantum dot-based semiconductor *** two states in question are the so-called ground state and first excited state of the *** ability to lase from two different energy states is unique amongst semiconductor lasers and in combination with the high,intrinsic relaxation oscillation damping of the material and the novel,inherent cascade like carrier relaxation process,endows optically injected dual state quantum dot lasers with many unique dynamical *** attention is paid to fast state switching,antiphase excitability,novel information processing techniques and optothermally induced neuronal *** compare and contrast some of the physical properties of the system with other optically injected two state devices such as vertical cavity surface emitting lasers and ring ***,we offer an outlook on the use of quantum dot material in photonic integrated circuits.

关键词： state quantum relaxation

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New Taxa of Chrysomelidae (Insecta:Coleoptera) from Rovno Amber,Late Eocene

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Acta geologica Sinica(English Edition) 2010年第4期84卷 772-782页

作者： Konstantin NADEIN evgeny PERKOVSKY Schmalhausen Institute of Zoology National Academy of Sciences of UkraineKievUkraine

Leaf beetles Chrysomelidae of Rovno amber, from the Late Eocene, are recorded and described. Chrysomelidae of Rovno amber are represented by three subfamilies： galerucinae （Alticini）, Chrysomelinae, and Enmolpinae. Two new genera and three new species of Alticini： Manobiomorpha Nadein, gen. nov. （type species Manobiomorpha eocenica Nadein, sp. nov.）, Psyllototus Nadein, gen. nov. （type species PsyUototus progenitor Nadein, sp. nov.）, and Crepidodera decolorata Nadein et Perkovsky, sp. nov. are described. A new chrysomeline genus and species Paleophaedon minutus Nadein gen. nov. et sp. nov. is described. Probable trophic association of Crepidodera decolorata sp. nov., the taxonomic positions of Manobiomorpha gen. nov. and PsyUototus gen. nov., and the composition of leaf beetle faunas of Middle and Late Eocene of Europe are discussed.

关键词： Chrysomelidae Rovno amber Late Eocene new genera new species

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