Zobrazeno 1 - 10
of 16
pro vyhledávání: '"S. O. Semenov"'
Autor:
S. O. Semenov, N. Yu. Zolotykh
Publikováno v:
Optimization Letters. 16:2177-2189
We propose a cut-based algorithm for finding all vertices and all facets of the convex hull of all integer points of a polyhedron defined by a system of linear inequalities. Our algorithm, DDMCuts, is based on the Gomory cuts and the dynamic version
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb8a0df7954f569c7a0f363f090b60f8
https://doi.org/10.1007/s11590-021-01729-w
https://doi.org/10.1007/s11590-021-01729-w
Publikováno v:
AIP Conference Proceedings.
The effect of plasma treatment in methane and the subsequent heat treatment of silicon dioxide substrates is studied. At the first stage, carbon film was deposited in an inductively coupled plasma on the surface of a SiO2 substrate. The Raman spectra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a98b12b9494cca347992658a556690a8
https://doi.org/10.1063/1.5135492
https://doi.org/10.1063/1.5135492
Autor:
A.S. Andreev, N A Savvinova, A R Prokopyev, E S Lukin, S O Semenov, F F Protopopov, E P Neustroev, V. I. Popov
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1079:042086
In the work, the properties of graphene oxide processed in methane plasma and plasma of a mixture of methane and nitrogen and subjected to subsequent annealing at T = 650 ° C in an argon atmosphere are investigated. It is shown that during plasma tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::559292a843fbe108ae95c7474b9cde31
https://doi.org/10.1088/1757-899x/1079/4/042086
https://doi.org/10.1088/1757-899x/1079/4/042086
Autor:
A A Alekseev, S O Semenov, V. B. Timofeev, E P Neustroev, Z Y Davydova, I I Kurkina, V. I. Popov, A R Prokopiev
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 693:012043
The effect of the two-step process on the properties of graphene oxide (GO) is studied. At the first stage, CH4 (or CH2+N2) plasma treatment was performed. The second one was heat treated at a temperature of 650° C. The formation of thin polycrystal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adf05d43b7c7b66e330971970c8191bd
https://doi.org/10.1088/1757-899x/693/1/012043
https://doi.org/10.1088/1757-899x/693/1/012043
Autor:
V. D. Juravleva, S. O. Semenov
Publikováno v:
2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
The method of space charge forces calculation in nonstationary electron beams using boundary elements equations are proposed. For 1D task the consistent scheme of distribution between mesh points of particle charges and calculation of electric field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c409cfb77ca5f695b21cb6901d41dc3
https://doi.org/10.1109/apede.2016.7878884
https://doi.org/10.1109/apede.2016.7878884
Publikováno v:
2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
The propagation of current and velocity sinusoidal modulation in plane diode using 2D numerical model is studied. The linear regions are obtained when the first harmonics of current and velocity between cathode and anode are increasing proportionally
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::379b779ea41e5ef5e6c2ffb5e9d8d7ba
https://doi.org/10.1109/apede.2016.7878883
https://doi.org/10.1109/apede.2016.7878883
Publikováno v:
2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
The method of digital calculation of noise figure for helix TWT using 2d code are presented. The electron beam in helix structure enter was obtained after electron gun calculation with current and velocity modulations on cathode. The zero initial con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e3b605a9548c12fb2c760a88085f657
https://doi.org/10.1109/apede.2016.7878885
https://doi.org/10.1109/apede.2016.7878885
Autor:
I. P. Medvedkov, A.D. Rafalovich, A. B. Danilov, V. A. Senchurov, L.A. Shtern, A. I. Petrosyan, D. N. Zolotykh, S. O. Semenov, V. I. Rogovin
Publikováno v:
2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
This paper presents the results of numerical simulation and experimental researches of high power broadband TWT in X/Ku frequency range. Described TWT provides the output power more than 500 W with the operating frequency greater than 1 octave and ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf75404ba73d69daaaec7fc9720ec5ef
https://doi.org/10.1109/apede.2016.7878849
https://doi.org/10.1109/apede.2016.7878849
Publikováno v:
2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
The method and code of electron gun calculation in time domain are presented. The Poisson equation in 2D axial region is solved by integral equation method. For modeling in time domain algorithm «step by step» is used. Three meshes — one spherica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89996a4a1cd62a35f6e1d14cd43b4c0e
https://doi.org/10.1109/apede.2016.7878881
https://doi.org/10.1109/apede.2016.7878881
Publikováno v:
2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
The method of digital calculation of current and velocity disturbances propagation in converging electron streams are presented. The Poisson equation in 2D axial region is solved by integral equation method. For modeling in time domain algorithm «st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68dfaf91a13c206292e9f8dd97d3afcd
https://doi.org/10.1109/apede.2016.7878882
https://doi.org/10.1109/apede.2016.7878882