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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : Bound States in Photonic Fabry-Perot Resonator Comprised of Two Nonlinear Off-Channel Defects
Коллективы : Russian Foundation for Basic Research [09-02-98005-Siberia]
Место публикации : JETP Letters. - 2009. - Vol. 90, Is. 12. - P.744-749. - ISSN 0021-3640, DOI 10.1134/S0021364009240023
Примечания : Cited References: 32. - We thank Kostya Pichugin for many helpful discussions. The work was partially supported by the Russian Foundation for Basic Research, project no. 09-02-98005-Siberia.
Предметные рубрики: SCATTERING-THEORY
WAVE-GUIDE
CONTINUUM
MODES
Аннотация: Two off-channel nonlinear defects coupled to the photonic waveguide constitute the Fabry-Perot interfer-ometer (FPR). The defects are made from a Kerr-like nonlinear material. For the linear case such a FPR can support the bound states in the form of standing waves between the defects if the distance between them is quantized. For the nonlinear case the bound states appear for arbitrary distance between the defects however for an quantized electromagnetic intensity. For the transmission through FPR we reveal new resonances and show these are a result of coupling of the bound states with incident wave because of nonlinearity of the defects. The resonances are spaced at the eigen frequencies of bound states.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Bobrov P.P., Kondratieva O.V., Mironov V.L., Shvetsov E., Sukhinin A.I., Yashchenko A.S.
Заглавие : Results of the SMOS Data Validation over a Steppe and Forest Area in Siberia
Коллективы : Progress In Electromagnetics Research Symposium
Место публикации : Proc. PIER. - 2011. - С. 55-58
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Бобров, Павел Петрович, Миронов, Валерий Леонидович, Ященко, Александр Сергеевич
Заглавие : Особенности яркостных характеристик территории юга Западной Сибири и Северного Казахстана в период таяния снежного покрова, измеряемых космическим аппаратом SMOS
Место публикации : Вестник СибГАУ. - 2013. - № 5. - С. 16-18
Ключевые слова (''Своб.индексиров.''): микроволновая радиометрия--спутниковые данные--промерзание и оттаивание почв
Аннотация: Приведены результаты анализа радиояркостных характеристик почв в период промерзания, находения взамерзшем состоянии и оттаивания. Установлено, что яркостная температура, измеренная радиометром MIRAS спутник SMOS, слабо изменяется при замерзании почвы в силу климатических и графических особенностей юга Западной Сибири. Показано, что спутниковые данные, как и данные наземных измерений, слабо коррелируют с параметрами, характеризующими состояние почвы при нахождении в замерзшем состоянии. Установлено, что при таянии снего наблюдается влияние азимутального угла съемки относительно меридионального направления на временной ход яркостной температуры. Найденные зависимости следует учитывать при обработке и использовании спутниковых радиометрических данных SMOS.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Якубайлик, Эдуард Константинович, Килин В. И., Килин С. В., Ганженко И. М.
Заглавие : Магнитные свойства и процессы мокрой магнитной сепарации первичных концентратов железосодержащих руд Сибири
Место публикации : Горный информационно-аналитический бюллетень. - 2013. - № 2. - С. 114-124. - ISSN 0236-1493
Ключевые слова (''Своб.индексиров.''): magnetic characteristics--primary concentrate--magnetite--oxidic ores--wet separation--separation parameters obtained--магнитные параметры--первичный концентрат--магнетитокисленные руды--мокрая сепарация--показатели обогащения
Аннотация: Изложены результаты изучения основных магнитных характеристик и показателей лабораторной мокрой сепарации девяти первичных концентратов магнетитовых и слабоокисленных руд сибирских месторождений — сырья Абагурской обогатительной фабрики. Рекомендовано слабоокисленные руды обогащать в обшей шихте с магнетитовыми для уменьшения потерь железа с хвостами.The results of investigation of the main magnetic properties and the separation parameters obtained laboratory wet separation nine primary concentrate magnetite and sub-acidulute siberian ores deposits - raw materials of Abagursk preparation plant are present. Recommend sub-acidulate ores to concentrate at common charge with the magnetite ores for decreasing the losses of the iron with tailing.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Gitelzon I. I.
Заглавие : Evolution and present status of experimental manned ecological systems for long-term human life support – BIOS, developed by the Institute of Biophysics of Russian Academy of Sciences in Krasnoyarsk (Siberia)
Коллективы : International Astronautical Congress, Международный конгресс по астронавтике
Место публикации : 66th International Astronautical Congress: proceedings. - 2015. - Ст.28556
Примечания : Bibliogr. at the end of the art.
Аннотация: Closed ecological systems are of two-fold interest – as models of the Earth’s biosphere explorable in experiments and as a facility for long-term autonomous human life support beyond the Earth. Theoretical analysis and experimental implementation of highly closed manned systems has been the subject of studies at the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) for many years. BIOS systems of increasing complexity with complete regeneration of atmosphere, water and partially food have been realized. In BIOS-3 experiments the system inhabited by 2-3 researchers for 4-6 months maintained its metabolic equilibrium without any negative physiological effect on the crew, which proves its sustainable condition. Specific for BIOS-3 is internal control by the people inhabiting the system. So, BIOS-3 is the first experimental implementation of V.I. Vernadsky’s idea about the noosphere – habitable Biosphere controlled by human intelligence. Contrary to predictions of many environmentalists the closedness of the ecosystem is a factor that does not reduce, but increases its sustainability and makes its use for reliable life support outside the Earth realistic. The system is sustainable owing to permanent feedback between the monitoring of few key parameters of the system and automatic corrective actions on them. Main object of control is photo- biosynthesis regenerating parameters of human habitat disturbed by his vital activities. This principle has been realized in BIOS system and proved its reliability in long-term experiments. A new challenge is specified –optimal increase of trophic closedness of the system by reproduction within it essential proteins (peptides and amino acids), lipids, vitamins and other essential compounds. Alternative lines of attack on this problem by state-of-the-art biotechnological methods, GMO including, are under analysis. Reduced BIOS version – without complete closure – can be a breakthrough instrument to improve the quality of life of people living under extreme conditions on the Earth – in polar latitudes (Arctic, Antarctic), in deserts, in high mountains.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Val'kov V. V., Dzebisashvili D. M., Barabanov A. F.
Заглавие : d-Wave pairing in an ensemble of spin polaron quasiparticles in the spin-fermion model of the electronic structure of the CuO2 plane
Коллективы : Dynasty Foundation, Russian Foundation for Basic Research (Siberia) [13-02-00523,13-02-00909, 13-02-98013]
Место публикации : Phys. Lett. A: Elsevier Science, 2015. - Vol. 379, Is. 5. - P.421-426. - ISSN 0375, DOI 10.1016/j.physleta.2014.11.036. - ISSN 18732429(eISSN)
Примечания : Cited References:26. - This study was supported by the Russian Foundation for Basic Research,projects Nos. 13-02-00523, 13-02-00909 and 13-02-98013 (Siberia) and theDynasty Foundation.
Предметные рубрики: SUPERCONDUCTIVITY
ANTIFERROMAGNETISM
Ключевые слова (''Своб.индексиров.''): hight-temperature cuprate superconductors--tree-band p-d model--spin--polaron--strong electron correlations
Аннотация: It is demonstrated for the first time that the strong coupling between spin moments of copper ions and oxygen holes, which arises upon hybridization mixing of two hole subsystems in the Emery model, not only affects the formation of spin polaron quasiparticles but also ensures effective attraction between them via the exchange interaction. This results in the Cooper instability with d-wave pairing in a 2D ensemble of spin polaron quasiparticles. The T-x phase diagram obtained using this approach agrees well with the available experimental data. (C) 2014 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Val'kov V. V., Zlotnikov A. O.
Заглавие : Microscopic derivation of the Ginzburg-Landau equations for the periodic Anderson model in the coexistence phase of superconductivity and antiferromagnetism
Коллективы : Russian Foundation for Basic Research [13-02-00523]; regional Grant Siberia [15-42-04372]; RF Presidential Grant [SP-1370.2015.5]
Место публикации : J. Low Temp. Phys.: Springer/Plenum Publishers, 2016. - Vol. 185, Is. 5-6. - P.439-445. - ISSN 0022-2291, DOI 10.1007/s10909-015-1410-y. - ISSN 1573-7357(eISSN)
Примечания : Cited References:11. - This work was supported in part by the Russian Foundation for Basic Research, Grant No. 13-02-00523 and regional Grant Siberia No. 15-42-04372. A.O.Z. acknowledges the support of RF Presidential Grant No. SP-1370.2015.5.
Предметные рубрики: HUBBARD-MODEL
Ключевые слова (''Своб.индексиров.''): ginzburg-landau equations--superconductivity--antiferromagnetism--coexistence phase--periodic anderson model
Аннотация: On the basis of the periodic Anderson model, the microscopic Ginzburg-Landau equations for heavy-fermion superconductors in the coexistence phase of superconductivity and antiferromagnetism have been derived. The obtained expressions are valid in the vicinity of quantum critical point of heavy-fermion superconductors when the onset temperatures of antiferromagnetism and superconductivity are sufficiently close to each other. It is shown that the formation of antiferromagnetic ordering causes a decrease of the critical temperature of superconducting transition and order parameter in the phase of coexisting superconductivity and antiferromagnetism.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rogozin D. Y., Balaev D. A., Semenov S. V., Shaikhutdinov K. A., Bayukov O. A.
Заглавие : Magnetic properties of bottom sediments from Meromectic Shira Lake (Siberia, Russia)
Место публикации : Dokl. Earth Sci.: MAIK Nauka-Interperiodica / Springer, 2016. - Vol. 469, Is. 2. - P.819-823. - ISSN 1028334X (ISSN), DOI 10.1134/S1028334X16080067
Примечания : Cited References: 15. - This study was supported by the Russian Foundation for Basic Research and by the Krasnoyarsk Regional Foundation for Support of Scientific and Technical Activity (project no. 15-45-04272), as well as the Government Council on Grants of President of the Russian Federation for leading scientific schools (project NSh-9249.2016.5).
Предметные рубрики: BACTERIAL MAGNETITE
Аннотация: Magnetic properties were studied in bottom sediments of saline meromictic Shira Lake by the methods of static magnetometry and resonance Mossbauer spectroscopy for the first time. All layers of bottom sediments contain nanosized single-domain magnetite particles produced by magnetotactic bacteria. The concentration of magnetite in bottom sediments decreased with depth, reaching a local minimum in the layer corresponding to the minimal level of the lake observed in 1910–1930. It is demonstrated that biogenic magnetite may indicate climate-related changes in the level of Shira Lake, in addition to the other biological and geochemical characteristics. © 2016, Pleiades Publishing, Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mikhlin Y., Romanchenko A., Vorobyev S., Karasev S., Volochaev M. N., Kamenskiy E., Burdakova E.
Заглавие : Ultrafine particles in ground sulfide ores: A comparison of four Cu-Ni ores from Siberia, Russia
Место публикации : Ore Geol. Rev.: Elsevier, 2017. - Vol. 81, Part 1. - P.1-9. - ISSN 0169-1368, DOI 10.1016/j.oregeorev.2016.10.024
Примечания : Cited References: 64. - This research was supported by the Russian Science Foundation, grant no. 14-17-00280.
Ключевые слова (''Своб.индексиров.''): cu-ni sulfide ores--ultrafine particles--mineral surfaces--colloids--beneficiation--environment
Аннотация: Nano-, submicro- and micrometer mineral particles may have an important role in beneficiation of metal ores and environmental impact, but their origin and characteristics are poorly understood. Here, we report data for the yield and the composition of fine fractions, and surfaces of several ground Cu-Ni sulfide ores studied using laser diffraction, scanning electron microscopy and energy dispersive X-ray analysis, X-ray photoelectron spectroscopy. Colloidal particles were characterized using dynamic light scattering, zeta-potential measurement, transmission electron microscopy and electron diffraction. The production of fines by dry milling was found to increase from about 0.01 vol.% to 0.2 vol.% for submicrometer particles and from ~ 0.5 vol.% to about 1.5 vol.% for particulate material less than 5 μm in the following order: Noril'sk disseminated low sulfide ore ≤ Noril'sk Cu-rich sulfide ore < Noril'sk valleriite ore < Kingash ore. For wet milling, the yield may be several times higher. Both surfaces of the milled ores and colloids were enriched in O, Mg, Si (largely as serpentine slimes) and depleted in sulfur, basic metals and iron, but colloidal valleriite, chalcopyrite, and oxidized pyrrhotite were found in the respective supernatants too. Typically, the colloidal particles form aggregates with an average hydrodynamic diameter of about 1 μm and a smaller number of ~ 5 μm species, except for valleriite ore, which exhibits a single size distribution peak at 2.7 μm. Zeta-potential, which characterizes the electric charge of the particles and dispersion stability of colloids, changed from − 25 mV for the low sulfide ore to about 0 mV for valleriite ore, and to + 15 mV for Kingash ore. Poor flotation recovery of metal from Kingash ore and Noril'sk valleriite ore is suggested to be due to both the large quantities and positive charge of hydrophilic ultrafine serpentine and/or magnesium hydroxide minerals. Resistance to oxidation and hence stability against aggregation of copper-bearing sulfide colloids in waste waters is expected to result in a negative impact on the environment.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Val'kov V. V., Zlotnikov A. O.
Заглавие : Manifestation of spin-charge fluctuations in the spectral and thermodynamic properties of quasi-two-dimensional rare-earth intermetallic compounds
Коллективы : RFBR [16-02-00073-a, 15-42-04372-r-Siberia-a]; Government of the Krasnoyarsk Region; Regional Science Foundation [07/16]; Integrated program II.2P of SB RAS [0358-2015-0002]; Presidential scholarships for young PhDs [SP-1370.2015.5]
Место публикации : Low Temp. Phys.: American Institute of Physics, 2017. - Vol. 43, Is. 2. - P.191-199. - ISSN 1063-777X, DOI 10.1063/1.4977211. - ISSN 1090-6517(eISSN)
Примечания : Cited References:35. - This work was supported by RFBR (Grants Nos. 16-02-00073-a and 15-42-04372-r-Siberia-a), the Government of the Krasnoyarsk Region and the Regional Science Foundation (Ext. Agreement No. 07/16), as well as the Integrated program II.2P of SB RAS (Project No. 0358-2015-0002). One of the authors (A.O.Z.) acknowledges the support by the Presidential scholarships for young PhDs (SP-1370.2015.5).
Предметные рубрики: PERIODIC ANDERSON MODEL
INTERMEDIATE-VALENCE COMPOUNDS
MAGNETIC PHASE-DIAGRAM
HEAVY
SUSCEPTIBILITY
APPROXIMATION
ANTIFERROMAGNETISM
SUPERCONDUCTIVITY
LATTICE
METALS
Аннотация: In the framework of the modified periodic Anderson model with exchange interaction in the subsystem of localized states, it is shown that spin-charge fluctuations in quasi-two-dimensional intermetallic compounds with rare-earth ions in the mixed valence state significantly affect both the spectrum of magnetic excitations and the conditions at which the antiferromagnetic phase is realized. The spectral characteristics of the phase were obtained by the method of the diagram technique for Hubbard operators in the one-loop approximation, which allows to account for the spincharge fluctuation contributions to the components of the mass and the force operators. The developed theory allowed to quantitatively describe the pressure dependence of the Neel temperature observed in a quasi-two-dimensional antiferromagnetic heavy-fermion intermetallic compound CeRhIn5. Published by AIP Publishing.
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