Search Results - "Semenov, A. D"

A Unified Monte Carlo Treatment of Gas-Grain Chemistry for Large Reaction Networks. I. Testing Validity of Rate Equations in Molecular Clouds by Vasyunin, A. I, Semenov, D. A, Wiebe, D. S, Henning, Th

“…In this study, we demonstrate for the first time that the unified Monte Carlo (MC) approach can be applied to model gas-grain chemistry in large reaction…”
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A New Modified-Rate Approach For Gas-Grain Chemistry: Comparison with a Unified Large-Scale Monte Carlo Simulation by Garrod, R. T, Vasyunin, A. I, Semenov, D. A, Wiebe, D. S, Henning, Th

“…We compare the results of the unified Monte Carlo chemical model with the new modified-rate equation (MRE) method under a wide range of interstellar…”
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Terahertz Performance of Integrated Lens Antennas With a Hot-Electron Bolometer by Semenov, A.D., Richter, H., Hubers, H.-W., Gunther, B., Smirnov, A., Il'in, K.S., Siegel, M., Karamarkovic, J.P.

“…Radiation coupling efficiency and directive properties of integrated lens antennas with log-spiral, log-periodic, and double-slot planar feeds coupled to a…”
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Variations of the HCO+, HCN, HNC, N2H+, and NH3 deuterium fractionation in high-mass star-forming regions by Pazukhin, A G, Zinchenko, I I, Trofimova, E A, Henkel, C, Semenov, D A

“…ABSTRACT We use spectra and maps of the J = 1 − 0 and J = 2 − 1 DCO+, DCN, DNC, $\rm N_2D^+$ lines, and 111−101 ortho- and para-NH2D lines, obtained with the …”
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The shocked molecular layer in RCW 120 by Kirsanova, M S, Pavlyuchenkov, Ya N, Olofsson, A O H, Semenov, D A, Punanova, A F

“…ABSTRACT Expansion of wind-blown bubbles or H ii regions lead to formation of shocks in the interstellar medium, which compress surrounding gas into dense…”
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Fluctuation effects in superconducting nanostrips by Engel, A., Semenov, A.D., Hübers, H.-W., Il’in, K., Siegel, M.

“…Superconducting fluctuations in long and narrow strips made from ultrathin NbN films, have been investigated. For large bias currents close to the critical…”
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Fiber-dispersive Raman spectrometer with single-photon sensitivity by Sidorova, M., Pavlov, S. G., Semenov, A. D., Gensch, M., Hübers, H.-W.

“…The two major challenges in Raman spectroscopy are the low intensity of spontaneous Raman scattering and often accompanying luminescence. We overcome these two…”
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Search for 8.4-keV Solar Axions Emitted in the M1 Transition in 169Tm Nuclei by Derbin, A. V., Drachnev, I. S., Muratova, V. N., Semenov, D. A., Trushin, M. V., Unzhakov, E. V.

“…Axions with an energy of 8.4 keV emitted in the М 1 transition in 169 Tm nuclei in the Sun are sought in the → 169 Tm* → (8.4 keV) reaction of resonant…”
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Towards detecting methanol emission in low-mass protoplanetary discs with ALMA: the role of non-LTE excitation by Parfenov, S. Yu, Semenov, D. A., Sobolev, A. M., Gray, M. D.

“…The understanding of organic content of protoplanetary discs is one of the main goals of the planet formation studies. As an attempt to guide the observational…”
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Picosecond hot-electron energy relaxation in NbN superconducting photodetectors by Il’in, K. S., Lindgren, M., Currie, M., Semenov, A. D., Gol’tsman, G. N., Sobolewski, Roman, Cherednichenko, S. I., Gershenzon, E. M.

“…We report time-resolved characterization of superconducting NbN hot-electron photodetectors using an electro-optic sampling method. Our samples were patterned…”
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The Effect of Transformer-Oil Aging on the Residual Service Life of the Transformer and Its Diagnostic Parameters by Serebryakov, A. S., Semenov, D. A., Sbitnev, E. A., Sidorova, A. V.

“…One of the methods for the diagnostics of the main insulation of power oil transformers is considered. The testing results for the main insulation of…”
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Influence of uncertainties in the rate constants of chemical reactions on astrochemical modeling results by Vasyunin, A I, Sobolev, A M, Wiebe, D S, Semenov, D A

“…We analyze the influence of errors in the rate constants of gas-phase chemical reactions on the model abundances of molecules in the interstellar medium using…”
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Search for resonant absorption of solar axions emitted in M1 transition in 57Fe nuclei by Derbin, A. V., Egorov, A. I., Mitropol’sky, I. A., Muratova, V. N., Semenov, D. A., Unzhakov, E. V.

“…A search for resonant absorption of 14.4 keV solar axions by a 57 Fe target was performed. The Si(Li) detector placed inside the low-background setup was used…”
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Simulation of the Electrical Parameters of Microarc Oxide Coatings Using the Matrix-Operator Method by Pecherskaya, E. A., Konovalov, S. V., Semenov, A. D., Golubkov, P. E., Gurin, S. A., Novichkov, M. D.

“…The work addresses the issues of controllability of the microarc-oxidation process. This problem is mostly due to the difficulty of analytically characterizing…”
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The system of automatic control of the substrate temperature as part of the installation for the production of film material by spray pyrolysis by Pecherskaya, E. A., Semenov, A. D., Zinchenko, T. O., Danilov, A. A., Tuzova, D. E.

“…The authors discuss a problem of ensuring the optimal temperature conditions of the technological process for obtaining transparent conductive coatings using…”
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Superconducting noise bolometer with microwave bias and readout for array applications by Kuzmin, A. A., Semenov, A. D., Shitov, S. V., Merker, M., Wuensch, S. H., Ustinov, A. V., Siegel, M.

“…We present a superconducting noise bolometer for terahertz radiation, which is suitable for large-format arrays. It is based on an antenna-coupled…”
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Discrete-time Deployment of Agents on a Line Segment: Delays and Switches Do Not Matter by Aleksandrov, A. Yu, Semenov, A. D., Fradkov, A. L.

“…This paper considers the discrete-time problem of deploying agents on a line segment under delay in communication channels and switching and also under…”
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New limits on the resonant absorption of solar axions obtained with a 169Tm-containing cryogenic detector by Abdelhameed, A. H., Bakhlanov, S. V., Bauer, P., Bento, A., Bertoldo, E., Canonica, L., Derbin, A. V., Drachnev, I. S., Iachellini, N. Ferreiro, Fuchs, D., Hauff, D., Laubenstein, M., Lis, D. A., Lomskaya, I. S., Mancuso, M., Muratova, V. N., Nagorny, S., Nisi, S., Petricca, F., Proebst, F., Rothe, J., Ryabchenkov, V. V., Sarkisov, S. E., Semenov, D. A., Subbotin, K. A., Trushin, M. V., Unzhakov, E. V., Zharikov, E. V.

“…A search for resonant absorption of solar axions by 169 Tm nuclei was carried out. A newly developed approach involving low-background cryogenic bolometer…”
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A compact, continuous-wave terahertz source based on a quantum-cascade laser and a miniature cryocooler by Richter, H, Greiner-Bär, M, Pavlov, S G, Semenov, A D, Wienold, M, Schrottke, L, Giehler, M, Hey, R, Grahn, H T, Hübers, H-W

“…We report on the development of a compact, easy-to-use terahertz radiation source, which combines a quantum-cascade laser (QCL) operating at 3.1 THz with a…”
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Compact Calibration Source of Neutrons on the Basis of the Cf Radionuclide and a Silicon Semiconductor Detector by Bazlov, N. V., Bubnov, E. F., Derbin, A. V., Drachnev, I. S., Ivanov, D. V., Konkov, O. I., Kotina, I. M., Mikulich, M. S., Muratova, V. N., Niyazova, N. V., Semenov, D. A., Trushin, M. V., Unzhakov, E. V., Chmel, E. A.

“…Operation of a model of a compact neutron source that can be used to calibrate dark-matter and electron-antineutrino detectors and to determine their response…”
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