Zobrazeno 1 - 10
of 241
pro vyhledávání: '"Korneev S"'
We present a new method for multiclass thresholding of a histogram which is based on the nonparametric Kernel Density (KD) estimation, where the unknown parameters of the KD estimate are defined using the Expectation-Maximization (EM) iterations. The
Externí odkaz:
http://arxiv.org/abs/2202.04785
Autor:
Wojciechowski, A., Voronko, V., Zhadan, A., Zhuk, I., Korneev, S., Potapenko, A., Safronova, A., Tiutiunnikov, S.
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A 1 September 2022 1038
Autor:
Kasimov, A., Korneev, S.
In this fluid dynamic video we present simulations of converging two-dimensional detonation in a radially expanding supersonic flow of ideal reactive gas. The detonation is found to be unstable and leads to formation of characteristic cellular patter
Externí odkaz:
http://arxiv.org/abs/1210.3913
Autor:
Kamchatnov, A. M., Korneev, S. V.
Publikováno v:
ZhETF, 142 (4) 658-665 (2012) [JETP, 115 (4) 579-585 (2012)]
Formation of oblique solitons by a flow of polariton condensate past an obstacle is considered. The flow is non-uniform due to a finite life-time of polaritons what changes drastically the conditions of formation of oblique solitons compared with the
Externí odkaz:
http://arxiv.org/abs/1111.4170
Autor:
Kamchatnov, A. M., Korneev, S. V.
Publikováno v:
Physics Letters A 375, 2577 (2011)
Simple derivation of the condition for the transition point from absolute instability of plane dark solitons to their convective instability is suggested. It is shown that unstable wave packet expands with velocity equal to the minimal group velocity
Externí odkaz:
http://arxiv.org/abs/1105.0789
Autor:
Kamchatnov, A. M., Korneev, S. V.
The stability of dark solitons generated by a supersonic flow of a Bose-Einstein condensate past a concave corner (or a wedge) is studied. It is shown that solitons in the dispersive shock wave generated at the initial moment of time demonstrate a sn
Externí odkaz:
http://arxiv.org/abs/1010.2100
Autor:
Kamchatnov, A. M., Korneev, S. V.
Publikováno v:
Physics Letters A 374 (2010), pp. 4625-4628
Quasiparticle approach to dynamics of dark solitons is applied to the case of ring solitons. It is shown that the energy conservation law provides the effective equations of motion of ring dark solitons for general form of the nonlinear term in the g
Externí odkaz:
http://arxiv.org/abs/1010.0391
Publikováno v:
AIP Conference Proceedings; 2023, Vol. 2784 Issue 1, p1-5, 5p
Publikováno v:
AIP Conference Proceedings; 2023, Vol. 2784 Issue 1, p1-13, 13p
Publikováno v:
Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques; 2023 Suppl 1, Vol. 17, pS115-S120, 6p