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Маньков, Юрий Иннокентьевич.
Электромагнитные волны с отрицательной групповой скоростью в случайно-неоднородном джозефсоновском переходе / Ю. И. Маньков // Физ. тверд. тела. - 2013. - Т. 55, Вып. 5. - С. 850-854
Аннотация: Методом усредненных функций Грина исследованы электромагнитные волны в случайно-неоднородном джозефсоновском переходе при немонотонном спаде корреляций неоднородностей. Изучены модификация спектра и затухание этих возбуждений, обусловленные пространственными флуктуациями критического тока джозефсоновского перехода. Определены области значений частоты, волнового числа и стохастических параметров среды, при которых волны имеют отрицательную групповую скорость.

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Переводная версия Electromagnetic waves with a negative group velocity in a randomly inhomogeneous Josephson junction. - [Б. м. : б. и.]

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Man'kov, Yu.I.
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    Zobov, V. E.
    Effect of degradation processes caused by a small perturbation on the growth of the average cluster size of correlated spins in multiple quantum NMR spectroscopy of solids / V. E. Zobov, A. A. Lundin // Appl. Magn. Reson. - 2021. - Vol. 52. Is. 7. - P. 879–892, DOI 10.1007/s00723-021-01342-1. - Cited References: 33. - The study is funded by the Ministry of Science and Higher Education of the Russian Federation in the framework of the State assignment, State registration number AAAA-A19-119012890064-7 . - ISSN 0937-9347
   Перевод заглавия: Влияние процессов деградации, вызванных малым возмущением, на рост среднего размера кластера коррелированных спинов в многоквантовой ЯМР спектроскопии твердых тел
Кл.слова (ненормированные):
Nuclear magnetic resonance spectroscopy -- Average size -- Cluster sizes -- Degradation process -- Multiple quantum NMR spectroscopy -- Orthogonal operators -- Over-complete -- Small perturbations -- Velocity ratio -- Cluster analysis
Аннотация: Multiple quantum (MQ) NMR spectroscopy of solids allows one to observe the growth and decay of multispin correlations. As a rule, the average size of the cluster of correlated spins is extracted from the width of the MQ spectrum. In the present article, the size distribution of such clusters is explored. To obtain the above distribution, the solutions for the amplitudes of the decomposition over complete sets of orthogonal operators for the two different models were used. By means of these models, we have taken into account the dependence of cluster degradation (the degradation of a cluster means, e.g., destruction of correlations in cluster or loss of particles in it) through two positions. The first one defines by the cluster size while the second one depends on the MQ coherence order of the cluster. It is shown that in dependence of the relation the rates of these degradation processes, the width of the MQ spectrum carries different information. If the first process is faster that the second one, then the width of the MQ spectrum is still determined by the average cluster size. When the velocity ratio becomes inverse, the width of the MQ spectrum takes on a smaller value, which is a consequence of the faster degradation of the MQ spectrum components with large orders of coherence.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 117977, Russian Federation

Доп.точки доступа:
Lundin, A. A.; Зобов, Владимир Евгеньевич
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Vasil'ev, E. N.
Numerical simulation of interaction between arc discharge and transverse magnetic field / E. N. Vasil'ev, D. A. Nesterov // High Temp. - 2007. - Vol. 45, Is. 2. - P. 137-142, DOI 10.1134/S0018151X07020010. - Cited References: 12 . - ISSN 0018-151X

РУБ Physics, Applied

Кл.слова (ненормированные):
Flow of gases -- Gas dynamics -- Mathematical models -- Molecular interactions -- Velocity distribution -- Arc discharges -- Discharge column -- Magnetogasdynamics -- Magnetic fields
Аннотация: An unsteady-state three-dimensional numerical model of radiation magnetogasdynamics is used to calculate the structure of an arc discharae which interacts with an external transverse maonetic field and transverse gas flow. The velocity field and the distribution of gas temperature obtained as a result of calculations agree with experimental data. The difference between the calculated and measured values of temperature in the discharge column is approximately 5%.

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Держатели документа:
Russian Acad Sci, Siberian Div, Inst Computat Modeling, Krasnoyarsk 660036, Russia
ИВМ СО РАН
Institute of Computational Modeling, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Nesterov, D. A.; Васильев, Евгений Николаевич
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The impact of cavitation-activated water on combustion dynamics and environmental characteristics of coal-water slurry fuel / O. P. Stebeleva [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. - 2019. - Vol. 537: International Workshop on Advanced Technologies in Material Science, Mechanical and Automation Engineering - MIP: Engineering-2019 (4 April 2019 through 6 April 2019) Conference code: 149243, Is. 6. - Ст. 062056, DOI 10.1088/1757-899X/537/6/062056. - Cited References: 8
Рубрики:
Chemical, Ecological and Power Engineering
Кл.слова (ненормированные):
Angular velocity -- Cavitation -- Coal -- Conservation -- Dynamics -- Ecology -- Fuels -- Ignition -- Water treatment
Аннотация: Among the new coal technologies the burning of low-grade coal in the form of coal-water slurry fuel (CWSF) is of a great interest. The basis of CWSF is a highly concentrated coal-water slurry consisting of finely ground coal, water or other liquid and plasticizing agents. The development of CWSF technology is highly relevant for solving global problems of resource conservation and ecology. The study is dedicated to CWSF properties with respect to Kansk-Achinsk coal and water. This paper presents the results of the influence of CWSF's preliminary cavitation water treatment on the combustion dynamics of fuel, (including the features of the combustion temperature trends, delayed ignition time and time of complete combustion) and on its environmental characteristics. A rotary-type hydrodynamic oscillator at high angular velocity (10000 rpm) was used in supercavitation mode. It is shown that the technology of cavitation water treatment leads to a change in the dynamics of CWSF's combustion and to an additional decrease in NOx emissions by 1.6 times, CO2 by 1.3 times.

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Держатели документа:
Siberian Federal University, 79, Svobodnyy Ave, Krasnoyarsk, 660049, Russian Federation
Federal Research Center, Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences, L.V. Kirensky Institute of Physics, SB RAS, 50 Akademgorodok, Krasnoyarsk, 660021, Russian Federation
National Research Tomsk Polytechnic University, Tomsk, 634050, Russian Federation

Доп.точки доступа:
Stebeleva, O. P.; Kashkina, L. V.; Petrakovskaya, E. A.; Петраковская, Элеонора Анатольевна; Nikitin, S. L.; Valiullin, T. R.; International Workshop on Advanced Technologies in Material Science, Mechanical and Automation Engineering(2019 ; April ; 4-6 ; Krasnoyarsk, Russian Federation)
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Sorokin, B. P.
Influence of heterogeneous external fields on propagation of bulk acoustic waves in crystals / B. P. Sorokin, A. N. Marushyak, K. S. Aleksandrov // Proceedings - IEEE Ultrasonics Symposium. - 2008. - Ст. 4803313. - P. 1472-1475, DOI 10.1109/ULTSYM.2008.0358 . - ISBN 1051-0117
Кл.слова (ненормированные):
Bulk elastic wave -- Non-homogeneous mechanical loading -- Phase velocity -- Wave surface -- Bulk acoustic waves -- Bulk elastic wave -- Bulk waves -- External fields -- Non-homogeneous -- Non-homogeneous mechanical loading -- Numerical calculation -- Small amplitude -- Wave surface -- Acoustic fields -- Crystals -- Elastic waves -- Elasticity -- Phase velocity -- Silicon compounds -- Soil structure interactions -- Waves -- Velocity
Аннотация: Formulas describing the influence of nonhomogeneous pressure on propagation of bulk waves in crystals have derived. Phase velocity for small amplitude waves in Bi12SiO20 crystal the action of non-homogeneous pressure has been . Under those conditions the behavior of the wave has researched. Numerical calculation of phase velocity of and their directions propagation changing have obtained. В©2008 IEEE.

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Доп.точки доступа:
Marushyak, A. N.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; IEEE International ultrasonics symposium(2008 ; Nov. ; 2-5 ; Beijing, China)
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Shear driven waves in the induced magnetosphere of Mars / H. . Gunell [et al.] // Plasma Phys. Control. Fusion. - 2008. - Vol. 50, Is. 7. - Ст. 74018, DOI 10.1088/0741-3335/50/7/074018. - Cited References: 27 . - ISSN 0741-3335

РУБ Physics, Fluids & Plasmas + Physics, Nuclear
Рубрики:
SOLAR-WIND INTERACTION
   KELVIN-HELMHOLTZ INSTABILITY
   MARTIAN ATMOSPHERE
   VELOCITY SHEAR
   VENUS
   PLASMA
   MHD
   IONOPAUSE
   SIMULATIONS
   BOUNDARY
Кл.слова (ненормированные):
Charged particles -- Magnetosphere -- Motion estimation -- Natural frequencies -- Plasma stability -- Shearing machines -- p ,p ,t measurements -- Computational results -- Electron densities -- Fundamental frequency (FF) -- Higher harmonics -- ion densities -- Ion velocities -- velocity shear -- Electrons
Аннотация: We present measurements of oscillations in the electron density, ion density and ion velocity in the induced magnetosphere of Mars. The fundamental frequency of the oscillations is a few millihertz, but higher harmonics are present in the spectrum. The oscillations are observed in a region where there is a velocity shear in the plasma flow. The fundamental frequency is in agreement with computational results from an ideal-MHD model. An interpretation based on velocity-shear instabilities is described.

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Держатели документа:
[Gunell, H.
Koepke, M.] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA
[Amerstorfer, U. V.
Biernat, H. K.] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria
[Amerstorfer, U. V.
Biernat, H. K.] Graz Univ, Inst Phys, A-8010 Graz, Austria
[Nilsson, H.
Holmstrom, M.
Lundin, R.
Barabash, S.] Swedish Inst Space Phys, SE-98128 Kiruna, Sweden
[Grima, C.] Lab Planetol Grenoble, F-38041 Grenoble 9, France
[Fraenz, M.] Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany
[Winningham, J. D.
Frahm, R. A.] SW Res Inst, San Antonio, TX USA
[Sauvaud, J-A
Fedorov, A.] Ctr Etud Spatiale Rayonnements, F-31028 Toulouse, France
[Erkaev, N. V.] Russian Acad Sci, Inst Computat Modelling, Krasnoyarsk 660036 36, Russia
ИВМ СО РАН
Department of Physics, West Virginia University, Morgantown, WV 26506-6315, United States
Space Research Institute, Austrian Academy of Sciences, Schmiedlstr. 6, A-8042 Graz, Austria
Institute of Physics, University of Graz, Universitatsplatz 5, A-8010 Graz, Austria
Swedish Institute of Space Physics, P.O. Box812, SE-981 28 Kiruna, Sweden
Laboratoire de Planetologie de Grenoble, BP-53, F-38041 Grenoble Cedex 9, France
Max-Planck-Institut fur Sonnensystemforschung, Max-Planck-Stra?e 2, 37191 Katlenburg-Lindau, Germany
Southwest Research Institute, San Antonio, TX 7228-0510, United States
Centre d'Etude Spatiale des Rayonnements, BP-4346, F-31028 Toulouse, France
Institute of Computational Modelling, Russian Academy of Sciences, 660036 Krasnoyarsk-36, Russian Federation

Доп.точки доступа:
Gunell, H.; Amerstorfer, U. V.; Nilsson, H.; Grima, C.; Koepke, M.; Franz, M.; Winningham, J. D.; Frahm, R. A.; Sauvaud, J. A.; Fedorov, A.; Erkaev, N. V.; Еркаев, Николай Васильевич; Biernat, H. K.; Holmstrom, M.; Lundin, R.; Barabash, S.
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Plasmonics: Nonlinear optics, negative phase, and transformable transparency / A. K. Popov, S. A. Myslivets, V. M. Shalaev // Proceedings of SPIE - The International Society for Optical Engineering. - 2009. - Vol. 7395. - Ст. 73950Z, DOI 10.1117/12.824836 . - ISBN 0277786X (ISSN); 9780819476852 (ISBN)
Кл.слова (ненормированные):
Backward electromagnetic waves -- Negative-index metamaterials -- Optical parametric amplification -- Quantum control -- Backward electromagnetic waves -- Control fields -- Light wave -- Nanostructured composites -- Negative group velocity -- Negative phase -- Negative-index -- Negative-index metamaterials -- Optical energy transfer -- Optical parametric amplification -- Optical technique -- Plasmonic metamaterials -- Plasmonics -- Quantum control -- Cements -- Electromagnetic wave diffraction -- Electromagnetic wave scattering -- Electromagnetic waves -- Electromagnetism -- Energy transfer -- Light -- Metamaterials -- Nanophotonics -- Nonlinear optics -- Plasmons -- Transparency -- Amplification
Аннотация: The feasibilities and specific features of coherent nonlinear-optical energy transfer from control fields to a negativephase signal are studied, and they are found to stem from the backwardness of electromagnetic waves inherent to negative-index metamaterials. Plasmonic metamaterials that possess negative group velocity for light waves promise a revolutionary breakthrough in nanophotonics. However, strong absorption inherent to such metaldielectric nanocomposites imposes severe limitations on the majority of such applications. Herein we show the feasibility and discuss different nonlinear-optical techniques of compensating such losses, producing transparency, amplification and even generation of negative-phase light waves in originally strongly absorbing microscopic samples of plasmonic metal-dielectric nanostructured composites. © 2009 SPIE.

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Держатели документа:
University of Wisconsin-Stevens Point, 812 Kensington Rd., Neenah, WI 54956, United States
Siberian Federal University, Institute of Physics, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation
Birck Nanotechnology Center, School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, United States

Доп.точки доступа:
Popov, A.K.; Myslivets, S. A.; Мысливец, Сергей Александрович; Shalaev, V.M.; Plasmonics: Nanoimaging, Nanofabrication, and their Applications V(5 ; 2009 ; Aug. ; 2-6 ; San Diego, CA)
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Photonic amplification and switching through nonlinear coupling with negative phonons / A. K. Popov [et al.] // Int. Conf. Phot. Switch., PS 2012. - 2012. - Ст. 6608287. - P. . - ISBN 9782912328618 (ISBN)
Кл.слова (ненормированные):
extraordinary stimulated Raman scattering -- negative group velocity -- nonlinear optical wave mixing -- optical phonos -- photonic components and devices
Аннотация: A family of switching photonic devices and amplifiers are proposed which mimic and utilize extraordinary coherent nonlinear-optical frequency conversion processes commonly attributed to plasmonic metamaterials. В© 2012 SEE.

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Доп.точки доступа:
Popov, A. K.; Попов, Александр Кузьмич; Myslivets, S. A.; Мысливец, Сергей Александрович; Shalaev, M. I.; Slabko, V. V.; Слабко, Виталий Васильевич; International Conference on Photonics in Switching (6 ; 2012 ; Sept ; 11-14 ; Ajaccio, France)
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Peculiarities of Alfven wave propagation along a nonuniform magnetic flux tube / N. V. Erkaev [et al.] // Phys. Plasmas. - 2005. - Vol. 12, Is. 1. - Ст. 12905, DOI 10.1063/1.1833392. - Cited References: 18 . - ISSN 1070-664X

РУБ Physics, Fluids & Plasmas
Рубрики:
HYDROMAGNETIC-WAVES
   TRANSFER EVENTS
   FIELD
   SLOW
Кл.слова (ненормированные):
Algebra -- Approximation theory -- Boundary conditions -- Electric conductivity -- Electric field effects -- Integral equations -- Magnetic flux -- Magnetohydrodynamics -- Perturbation techniques -- Polarization -- Vectors -- Velocity measurement -- Alfven wave propagation -- Axial symmetry -- Magnetic flux tubes -- Magnetosonic pulses -- Wave propagation
Аннотация: Within the framework of the assumption of large azimuthal wave numbers, the equations for Alfven and slow magnetosonic waves are obtained using frozen-in material coordinates. These equations are specified for the case of a nonuniform magnetic field with axial symmetry. Assuming a meridional polarization of the magnetic field and velocity perturbations, the effects of Alfven wave propagation are analyzed which are related to geometric characteristics of a nonuniform magnetic field: (a) A finite curvature radius of the magnetic field lines and (b) convergence of magnetic field lines. The interaction between the Alfven and magnetosonic waves is found to be strongly dependent on the curvature radius of the magnetic tube and the local plasma beta parameter. The electric field amplitude and the length scale of a wave front are found to increase very strongly in the course of the Alfven wave propagation along a converging magnetic flux tube. Also studied is a temporal decrease of the wave perturbations which is caused by dissipation at the conducting boundary. (C) 2005 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, Inst Computat Modelling, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
St Petersburg State Univ, Inst Phys, St Petersburg 198504, Russia
Austrian Acad Sci, Inst Space Res, A-8042 Graz, Austria
ИВМ СО РАН
Intitute of Computational Modelling, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
State University of Krasnoyarsk, Krasnoyarsk 660041, Russian Federation
Institute of Physics, State University, St. Petersburg 198504, Russian Federation
Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria

Доп.точки доступа:
Erkaev, N. V.; Еркаев, Николай Васильевич; Shaidurov, V. A.; Semenov, V. S.; Langmayr, D.; Biernat, H. K.
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10.

Nonlinear optics with backward waves: Extraordinary features, materials and applications [] / A. K. Popov [et al.] // Solid State Phenom. : Selected, peer reviewed papers. - 2014. - Vol. 213: Physics and Technology of Nanostructured Materials II. - P. 222-225, DOI 10.4028/www.scientific.net/SSP.213.222 . - ISSN 1662-9779. - ISSN 9783-0378
Кл.слова (ненормированные):
Backward waves -- Negative group velocity -- Negative-index metamaterials -- Nonlinear optical frequency mixing -- Optical phonons -- Spatial dispersion
Аннотация: Extraordinary properties of nonlinear-optical propagation processes are investigated that involve electromagnetic or elastic waves with negative group velocity. Nanostructured materials that support such waves and prospective unique photonic devices are described. В© (2014) Trans Tech Publications, Switzerland.

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Доп.точки доступа:
Galkin, N. \ed.\; Popov, A. K.; Slabko, V. V.; Слабко, Виталий Васильевич; Shalaev, M. I.; Nefedov, I. S.; Myslivets, S. A.; Мысливец, Сергей Александрович; Asian School-Conference on Physics and Technology of Nanostructured Materials(2 ; 2013 ; Aug. ; 20-27 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(2 ; 2013 ; авг. ; 20-27 ; Владивосток)
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