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Showing 1 to 12 of 74 entries
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Andronov-Hopf bifurcation with and without parameter in a cubic memristor oscillator with a line of equilibria.

Chaos (Woodbury, N.Y.)

Korneev IA, Semenov VV.
PMID: 28863496
Chaos. 2017 Aug;27(8):081104. doi: 10.1063/1.4996401.

The model of a memristor-based oscillator with cubic nonlinearity is studied. The considered system has infinitely many equilibrium points, which build a line of equilibria in the phase space. Numerical modeling of the dynamics is combined with the bifurcational...

Hot-spot relaxation time current dependence in niobium nitride waveguide-integrated superconducting nanowire single-photon detectors.

Optics express

Ferrari S, Kovalyuk V, Hartmann W, Vetter A, Kahl O, Lee C, Korneev A, Rockstuhl C, Gol'tsman G, Pernice W.
PMID: 28437951
Opt Express. 2017 Apr 17;25(8):8739-8750. doi: 10.1364/OE.25.008739.

We investigate how the bias current affects the hot-spot relaxation dynamics in niobium nitride. We use for this purpose a near-infrared pump-probe technique on a waveguide-integrated superconducting nanowire single-photon detector driven in the two-photon regime. We observe a strong...

Fauna europaea: Diptera - brachycera.

Biodiversity data journal

Pape T, Beuk P, Pont AC, Shatalkin AI, Ozerov AL, Woźnica AJ, Merz B, Bystrowski C, Raper C, Bergström C, Kehlmaier C, Clements DK, Greathead D, Kameneva EP, Nartshuk E, Petersen FT, Weber G, Bächli G, Geller-Grimm F, Van de Weyer G, Tschorsnig HP, de Jong H, van Zuijlen JW, Vaňhara J, Roháček J, Ziegler J, Majer J, Hůrka K, Holston K, Rognes K, Greve-Jensen L, Munari L, de Meyer M, Pollet M, Speight MC, Ebejer MJ, Martinez M, Carles-Tolrá M, Földvári M, Chvála M, Barták M, Evenhuis NL, Chandler PJ, Cerretti P, Meier R, Rozkosny R, Prescher S, Gaimari SD, Zatwarnicki T, Zeegers T, Dikow T, Korneyev VA, Richter VA, Michelsen V, Tanasijtshuk VN, Mathis WN, Hubenov Z, de Jong Y.
PMID: 25733962
Biodivers Data J. 2015 Feb 20;(3):e4187. doi: 10.3897/BDJ.3.e4187. eCollection 2015.

Fauna Europaea provides a public web-service with an index of scientific names (including important synonyms) of all extant multicellular European terrestrial and freshwater animals and their geographical distribution at the level of countries and major islands (east of the...

Laser-induced recollision phenomena: interference resonances at channel closings.

Physical review letters

Popruzhenko SV, Korneev PA, Goreslavski SP, Becker W.
PMID: 12096990
Phys Rev Lett. 2002 Jul 08;89(2):023001. doi: 10.1103/PhysRevLett.89.023001. Epub 2002 Jun 19.

An analytical theory of the resonancelike phenomena in high-order above-threshold ionization is presented that explains details of the experimental spectra and theoretical simulations. It traces the observed features to the constructive interference of "quantum orbits" with long travel times...

Ferroelectricity of perovskites under pressure.

Physical review letters

Kornev IA, Bellaiche L, Bouvier P, Janolin PE, Dkhil B, Kreisel J.
PMID: 16384010
Phys Rev Lett. 2005 Nov 04;95(19):196804. doi: 10.1103/PhysRevLett.95.196804. Epub 2005 Oct 31.

Ab initio simulations and experimental techniques are combined to reveal that, unlike what was commonly accepted for more than 30 years, perovskites and related materials enhance their ferroelectricity as hydrostatic pressure increases above a critical value. This unexpected high-pressure...

Beam amplification resulting from non-Bragg wave mixing in photorefractive strontium barium niobate.

Optics letters

Apolinar-Iribe A, Korneev N, Sánchez-Mondragón JJ.
PMID: 18091941
Opt Lett. 1998 Dec 15;23(24):1877-9. doi: 10.1364/ol.23.001877.

Two-wave mixing with a small angle between beams in a photorefractive crystal biased with an external electric field leads to the formation of additional non-Bragg orders and to wave amplification. A steady-state gain of 25 cm (-1) was obtained...

Grazing Incidence XUV Spectroheliograph RES-C for the CORONAS-I Mission.

Journal of X-ray science and technology

Kuzin SV, Zhitnik IA, Pertsov AA, Slemzin VA, Mitrofanov AV, Ignatiev AP, Korneev VV, Krutov VV, Sobelman II, Ragozin EN, Thomas RJ.
PMID: 21311120
J Xray Sci Technol. 1997 Jan 01;7(3):233-47.

The RES-C grazing incidence XUV spectroheliograph has been developed in the P. N. Lebedev Physical Institute (FIAN) as a part of the CORONAS-I project. Its objective is to obtain images of the full Sun in monochromatic lines over the...

Perturbation series for calculation of invariant surface splitting in volume-preserving maps.

Chaos (Woodbury, N.Y.)

Korneev N.
PMID: 21198072
Chaos. 2010 Dec;20(4):043102. doi: 10.1063/1.3496401.

The invariant surface splittings for small perturbation are described for two-dimensional and three-dimensional sample volume-preserving maps by explicit analytic expressions obtained from perturbation series for the self-adjoint operator related to the Frobenius-Perron operator.

Spectroscopic and DFT Study of Rh.

Inorganic chemistry

Vasilchenko DB, Berdyugin SN, Korenev SV, O'Kennedy S, Gerber WJ.
PMID: 28825805
Inorg Chem. 2017 Sep 05;56(17):10724-10734. doi: 10.1021/acs.inorgchem.7b01672. Epub 2017 Aug 21.

The hydrolysis of [RhCl

Preparation of porous Co-Pt alloys for catalytic synthesis of carbon nanofibers.

Nanotechnology

Popov AA, Shubin YV, Bauman YI, Plyusnin PE, Mishakov IV, Sharafutdinov MR, Maksimovskiy EA, Korenev SV, Vedyagin AA.
PMID: 32990267
Nanotechnology. 2020 Dec 04;31(49):495604. doi: 10.1088/1361-6528/abb430.

A simple and convenient procedure for the production of highly dispersed porous Co-Pt alloys to be used as catalysts for the synthesis of nanostructured carbon fibers (CNF) has been developed. The technique is based on the thermal decomposition of...

The mixture of siRNAs targeted to IL-4 and IL-13 genes effectively reduces the airway hyperreactivity and allergic inflammation in a mouse model of asthma.

International immunopharmacology

Ip S, Ms S, Av K, Aa N, Ed B, Vi K, Li V, Vn T, Kv Y, Mm K, Ve B, I S, A M, DA K, O P, M R K.
PMID: 34923422
Int Immunopharmacol. 2021 Dec 16;103:108432. doi: 10.1016/j.intimp.2021.108432. Epub 2021 Dec 16.

Bronchial asthma (BA) is one of the most common chronic inflammatory disease of airways. There are huge experimental data indicating that Th2-cytokines IL-4 and IL-13 play a key role in BA pathogenesis. They are implicated in the IgE synthesis,...

The mixture of siRNAs targeted to IL-4 and IL-13 genes effectively reduces the airway hyperreactivity and allergic inflammation in a mouse model of asthma.

International immunopharmacology

Ip S, Ms S, Av K, Aa N, Ed B, Vi K, Li V, Vn T, Kv Y, Mm K, Ve B, I S, A M, DA K, O P, M R K.
PMID: 34923422
Int Immunopharmacol. 2021 Dec 16;103:108432. doi: 10.1016/j.intimp.2021.108432. Epub 2021 Dec 16.

Bronchial asthma (BA) is one of the most common chronic inflammatory disease of airways. There are huge experimental data indicating that Th2-cytokines IL-4 and IL-13 play a key role in BA pathogenesis. They are implicated in the IgE synthesis,...

Showing 1 to 12 of 74 entries