Zobrazeno 1 - 10
of 60
pro vyhledávání: '"A V Fedenev"'
Autor:
Costas E. Alissandrakis, Gregory D. Fleishman, Viktor V. Fedenev, Stephen M. White, Alexander T. Altyntsev
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 122 (2024)
We report for the first time the detection of thermal free–free emission from post-flare loops at 34 GHz in images from the Nobeyama Radioheliograph. We studied eight loops, seven of which were from regions with an extremely strong coronal magnetic
Externí odkaz:
https://doaj.org/article/05aff34e81af499995c74a7e5d367a2d
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 160 (2023)
A strong coronal magnetic field, when present, manifests itself as bright microwave sources at high frequencies produced by the gyroresonant (GR) emission mechanism in thermal coronal plasma. The highest frequency at which this emission is observed i
Externí odkaz:
https://doaj.org/article/0465877fc59f4f4a8dd0ddd05523b28e
Autor:
Yu. P. Syrykh, A. V. Fedenev, V. I. Grigorievsky, Ya. A. Tezadov, G. A. Akimova, V. P. Sadovnikov
Publikováno v:
Journal of Communications Technology and Electronics. 64:1251-1255
—The paper presents the results of methane concentration measurements on extended horizontal and vertical paths in the Earth’s atmosphere using a laser-generated remote gas analyzer based on a two-stage Raman amplifier with an output power of abo
Autor:
G. A. Akimova, Yu. P. Syrykh, V. P. Sadovnikov, V. V. Khabarov, Ya. A. Tezadov, V. I. Grigor’yevskii, A. V. Fedenev, V. V. Mataibaev
Publikováno v:
Journal of Communications Technology and Electronics. 60:1058-1061
Techniques for enhancing the potential of quasi-continuous lidar systems for detection of methane in the Earth’s atmosphere are developed. It is theoretically calculated and experimentally demonstrated that the optimized signal processing and paral
Publikováno v:
Technical Physics Letters. 35:123-126
Within studies on the creation of new types of engines for small-sized space vehicles, we have experimentally studied the effect of the laser ablation of an electrode (insulator) material on the mechanical impulse of capillary discharge plasma. It is
Publikováno v:
Technical Physics. 49:987-992
Optical characteristics of the plasma of nanosecond volume discharges in air, nitrogen, krypton, argon, neon, and Ar/N2 and Ar/Xe mixtures at elevated pressures are investigated. The discharges are excited in a gap with a cathode of small curvature r
Autor:
N. N. Koval, Viktor F Tarasenko, Viktor M Orlovskii, A V Fedenev, Mikhail A. Shulepov, I. M. Goncharenko, E. I. Lipatov
Publikováno v:
Quantum Electronics. 34:375-380
The effect of IR and UV laser pulses on thin metal and composite films on glass substrates as a function of the energy density is studied. Upon irradiation by ~300-ns laser pulses with a nonuniform energy-density distribution over the laser-beam cros
Autor:
Milan S. Trtica, Biljana M. Gaković, Bojan B. Radak, Ljubica T. Petkovska, Mikhail A. Shulepov, Andrei V. Fedenev, Victor F. Tarasenko, Evgeniy I. Lipatov
Publikováno v:
Applied Surface Science
Interaction of a transversely excited atmospheric (TEA) CO2 and excimer-KrCl laser, pulse duration similar to2 mus (FWHM of initial spike similar to100 ns) and similar to12 ns (FWHM), respectively, with polycrystalline titanium nitride (TiN) coating
Autor:
Viktor M Orlovskii, A V Fedenev, Sergei I Yakovlenko, Aleksei N Tkachev, Viktor F Tarasenko, Mikhail A. Shulepov, S. B. Alekseev
Publikováno v:
Quantum Electronics. 33:1101-1106
Experiments are performed on the formation of coloured dots of a submillimetre size on the titanium foil surface irradiated by pulsed IR lasers. It is shown that the parameters of laser pulses can be selected so that the dots produced on the titanium
Autor:
S. B. Alekseev, Victor M. Orlovskii, I. M. Goncharenko, Mikhail A. Shulepov, Andrei V. Fedenev, Victor F. Tarasenko, E. I. Lipatov, N. N. Koval
Publikováno v:
Laser and Particle Beams. 21:265-272
The interaction of Xe (λ ∼ 1.73 μm) and XeCl (0.308 μm) laser radiation with surfaces of metal and TiN-ceramic coatings on glass and steel substrates has been studied. Correlation between parameters of surface erosion versus laser-specific energ