Zobrazeno 1 - 10
of 525
pro vyhledávání: '"Lebedev, V V"'
Electro-hydrodynamic phenomena in liquid crystals constitute an old but still very active research area. The reason is that these phenomena play the key role in various applications of liquid crystals and due to the general interest of physical commu
Externí odkaz:
http://arxiv.org/abs/2403.08325
Publikováno v:
JETP Letters 117 (2023) 122
We study the correlations of vorticity fluctuations inside a coherent vortex resulting from the inverse energy cascade in two-dimensional turbulence. The presence of a coherent flow, which is a differential rotation, suppresses small-scale fluctuatio
Externí odkaz:
http://arxiv.org/abs/2403.00501
We analytically examine fluctuations of vorticity excited by an external random force in two-dimensional fluid. We develop the perturbation theory enabling one to calculate nonlinear corrections to correlation functions of the flow fluctuations found
Externí odkaz:
http://arxiv.org/abs/2312.00566
Publikováno v:
ZhETF, 164, 129 (2023)
We present nonlinear dynamic equations for nematic and smectic $A$ liquid crystals in the presence of an alternating electric field and explain their derivation in detail. The local electric field acting in any liquid-crystalline system is expressed
Externí odkaz:
http://arxiv.org/abs/2210.09613
Autor:
Lebedeva K. O., Cherkashina A. M., Masikevych Y. G., Masikevych A. Y., Voronkin A. A., Lebedev V. V.
Publikováno v:
Журнал інженерних наук, Vol 11, Iss 1, Pp C1-C7 (2024)
In this article, effective 3D printing modeling technology of smart bio-medical polymeric hydrogel transdermal materials based on gelatin and sodium alginate, modified by humic acids, was researched. Such smart biologically active polymeric hydrogel
Externí odkaz:
https://doaj.org/article/761335b314df4e3e83704563c63f8462
The aim of this work is to revisit the phenomenological theory of the interaction between membrane inclusions, mediated by the membrane fluctuations. We consider the case where the inclusions are separated by distances larger than their characteristi
Externí odkaz:
http://arxiv.org/abs/2203.13640
Autor:
Vashukevich, E. A., Lebedev, V. V., Ilichev, I. V., Agruzov, P. M., Shamrai, A. V., Petrov, V. M., Golubeva, T. Yu.
For the first time, the theory and practical realization of a broadband quantum noise generator based on original integrated optical beam splitter in the form of a Mach-Zehnder interferometer is demonstrated. The beam splitter with a double output, m
Externí odkaz:
http://arxiv.org/abs/2109.09570
Publikováno v:
Phys. Rev. E 100, 022705 (2019)
We explain theoretically peculiarities of the smectic A -- hexatic B equilibrium phase coexistence in a finite temperature range recently observed experimentally in free standing smectic films [I.A.Zaluzhnyy et al., Physical Review E, volume 98, 0527
Externí odkaz:
http://arxiv.org/abs/1906.03555
Autor:
Lebedev V. V., Miroshnichenko D. V., Nyakuma B. B., Moiseev V. F., Shestopalov O. V., Vyrovets S. V.
Publikováno v:
Журнал інженерних наук, Vol 10, Iss 1, Pp C1-C8 (2023)
This paper investigated the synthesis of inorganic polymer composites for electromagnetic radiation absorption using potassium titanates. The selected polyamide 6 and potassium polytitanate materials contain TiО2, K2СО3, and KCl obtained by charge
Externí odkaz:
https://doaj.org/article/c2540f9ce69a45f3b606ce7f33431a6a
Autor:
Lebedev, V. V.
Publikováno v:
Proceedings of the Steklov Institute of Mathematics, 303 (2018), 171--177
Let $U(\mathbb T)$ be the space of all continuous functions on the circle $\mathbb T$ whose Fourier series converges uniformly. Salem's well-known example shows that a product of two functions in $U(\mathbb T)$ does not always belongs to $U(\mathbb T
Externí odkaz:
http://arxiv.org/abs/1807.03949