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Showing 1 to 12 of 152 entries
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Propagation equation for tight-focusing by a parabolic mirror.

Optics express

Couairon A, Kosareva OG, Panov NA, Shipilo DE, Andreeva VA, Jukna V, Nesa F.
PMID: 26698752
Opt Express. 2015 Nov 30;23(24):31240-52. doi: 10.1364/OE.23.031240.

Part of the chain in petawatt laser systems may involve extreme focusing conditions for which nonparaxial and vectorial effects have high impact on the propagation of radiation. We investigate the possibility of using propagation equations to simulate numerically the...

Metadata Correction of: Lessons Learned From Methodological Validation Research in E-Epidemiology.

JMIR public health and surveillance

Kesse-Guyot E, Assmann K, Andreeva V, Castetbon K, Méjean C, Touvier M, Salanave B, Deschamps V, Péneau S, Fezeu L, Julia C, Allès B, Galan P, Hercberg S.
PMID: 27797322
JMIR Public Health Surveill. 2016 Oct 31;2(2):e160. doi: 10.2196/publichealth.6876.

[This corrects the article DOI: 10.2196/publichealth.5880.].

Ultrasound assisted formation of Al-Ni electrocatalyst for hydrogen evolution.

Ultrasonics sonochemistry

Cherepanov PV, Ashokkumar M, Andreeva DV.
PMID: 25453211
Ultrason Sonochem. 2015 Mar;23:142-7. doi: 10.1016/j.ultsonch.2014.10.012. Epub 2014 Oct 20.

High intensity ultrasound treatment has been used to generate electrocatalytically active (toward hydrogen evolution) surface on AlNi (50 wt.% Ni) alloy particles. Acoustic cavitation is responsible for the initiation of redox processes on the catalyst surface leading to changes...

Ultrabroad Terahertz Spectrum Generation from an Air-Based Filament Plasma.

Physical review letters

Andreeva VA, Kosareva OG, Panov NA, Shipilo DE, Solyankin PM, Esaulkov MN, González de Alaiza Martínez P, Shkurinov AP, Makarov VA, Bergé L, Chin SL.
PMID: 26918992
Phys Rev Lett. 2016 Feb 12;116(6):063902. doi: 10.1103/PhysRevLett.116.063902. Epub 2016 Feb 11.

We have solved the long-standing problem of the mechanism of terahertz (THz) generation by a two-color filament in air and found that both neutrals and plasma contribute to the radiation. We reveal that the contribution from neutrals by four-wave...

[B.N. Birman, 1884-1952].

Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova

ANDREEVA BA.
PMID: 13007149
Zh Vyssh Nerv Deiat Im I P Pavlova. 1952 May-Jun;2(3):453-4.

No abstract available.

Nonequilibrium dynamics and thermodynamics of a degenerate fermi gas across a feshbach resonance.

Physical review letters

Andreev AV, Gurarie V, Radzihovsky L.
PMID: 15524684
Phys Rev Lett. 2004 Sep 24;93(13):130402. doi: 10.1103/PhysRevLett.93.130402. Epub 2004 Sep 22.

We consider a two-species degenerate Fermi gas coupled by a diatomic Feshbach resonance. We show that the resulting superfluid can exhibit a form of coherent BEC-to-BCS oscillations in response to a nonadiabatic change in the system's parameters, such as,...

Quantum phase transitions across a p-wave Feshbach resonance.

Physical review letters

Gurarie V, Radzihovsky L, Andreev AV.
PMID: 16090447
Phys Rev Lett. 2005 Jun 17;94(23):230403. doi: 10.1103/PhysRevLett.94.230403. Epub 2005 Jun 17.

We study a single-species polarized Fermi gas tuned across a narrow p-wave Feshbach resonance. We show that in the course of a Bose-Einstein condensation (BEC)-BCS crossover, the system can undergo a magnetic-field-tuned quantum phase transition from a px-wave to...

Electrons in the interference field as a system for effective nonlinear transformations of superintense laser pulses.

Optics letters

Akhmanov SA, Andreev AV.
PMID: 19776939
Opt Lett. 1991 Aug 15;16(16):1264-5. doi: 10.1364/ol.16.001264.

The interaction of relativistic electron beams with the superintense interference laser fields is investigated. The possibility of electron channeling, collimation, and bunching is shown. The new methods of parametric conversion and harmonic generation are discussed.

Photoinduced separation of chiral isomers in a classical buffer gas.

Physical review letters

Spivak B, Andreev AV.
PMID: 19257586
Phys Rev Lett. 2009 Feb 13;102(6):063004. doi: 10.1103/PhysRevLett.102.063004. Epub 2009 Feb 13.

We develop a theory of photoinduced drift of chiral molecules or small particles in classical buffer gases. In the absence of a magnetic field there exists a flux of chiral molecules, provided the electromagnetic field is circularly polarized. It...

Generation of a porous luminescent structure through ultrasonically induced pathways of silicon modification.

Angewandte Chemie (International ed. in English)

Skorb EV, Andreeva DV, Möhwald H.
PMID: 22489066
Angew Chem Int Ed Engl. 2012 May 21;51(21):5138-42. doi: 10.1002/anie.201105084. Epub 2012 Apr 05.

No abstract available.

Low-temperature magnetic and transport properties of single-crystal CeCoGe.

Journal of physics. Condensed matter : an Institute of Physics journal

Elmassalami M, Rapp RE, Sinnecker JP, Andreev AV, Prokleska J.
PMID: 21693861
J Phys Condens Matter. 2008 Nov 19;20(46):465223. doi: 10.1088/0953-8984/20/46/465223. Epub 2008 Oct 27.

The low-temperature properties of single-crystal CeCoGe were investigated by specific heat C(T,H), magnetoresistivity ρ(T,H), and differential susceptibility measurements χ(T,H). The zero-field low-temperature specific heat evolves as C = γT+βT(3) = 42T+23.5T(3) mJ mol(-1) K(-1). On comparing its γ =...

International perception of lung sounds: a comparison of classification across some European borders.

BMJ open respiratory research

Aviles-Solis JC, Vanbelle S, Halvorsen PA, Francis N, Cals JWL, Andreeva EA, Marques A, Piirilä P, Pasterkamp H, Melbye H.
PMID: 29435344
BMJ Open Respir Res. 2017 Dec 18;4(1):e000250. doi: 10.1136/bmjresp-2017-000250. eCollection 2017.

INTRODUCTION: Lung auscultation is helpful in the diagnosis of lung and heart diseases; however, the diagnostic value of lung sounds may be questioned due to interobserver variation. This situation may also impair clinical research in this area to generate...

Showing 1 to 12 of 152 entries