Zobrazeno 1 - 10
of 44
pro vyhledávání: '"D. D. Sokolov"'
Publikováno v:
Автоматизация технологических и бизнес-процессов, Vol 16, Iss 3, Pp 118-125 (2024)
Abstract. The canonical task of regression analysis consists in studying the problem of estimation and mathematical description of the influence caused by one or more independent variables (predictors, explanatory variables) on the dependent (explain
Externí odkaz:
https://doaj.org/article/c6ffd0d1ce894800b9dedc24493c505e
Publikováno v:
Автоматизация технологических и бизнес-процессов, Vol 16, Iss 1, Pp 16-22 (2024)
У The problem of distribution of a set of objects, the state of which is determined by a set of controlled parameters, into a set of subsets of objects maximally homogeneous in their properties is considered. Relevance of the problem and important a
Externí odkaz:
https://doaj.org/article/6d5bcab6fea44d0b82da331084c0388d
Publikováno v:
Вестник анестезиологии и реаниматологии, Vol 19, Iss 2, Pp 14-22 (2022)
The objective: to study the prognostic significance of the ratio of the absolute number of neutrophils to lymphocytes (NLR) and platelets to lymphocytes (PLR) in assessing the risk of cardiovascular complications in non-cardiac surgical interventions
Externí odkaz:
https://doaj.org/article/8fb207d36b094f2cac66563089ab415e
Publikováno v:
Physics-Uspekhi. 65:62-89
Spectral analysis, based on the Fourier method, is a general tool in physics. Wavelets appeared as a natural generalization of classical spectral analysis to the case of complex nonstationary and spatially inhomogeneous systems, for which a compariso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5962152b7f4a930522064776c4b2b89f
https://doi.org/10.3367/ufne.2020.10.038859
https://doi.org/10.3367/ufne.2020.10.038859
Publikováno v:
Astronomy Reports. 64:855-862
The cyclic variations in the quadrupole component of the solar magnetic field is studied in tensor description. The results are consistent with the classical description of the quadrupole using spherical functions, and the mathematical apparatus of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a59140d2a51db303407da8b19599a14c
https://doi.org/10.1134/s1063772920110086
https://doi.org/10.1134/s1063772920110086
Publikováno v:
Geomagnetism and Aeronomy. 57:113-118
Modern models of nonlinear dynamo saturation in celestial bodies (specifically, on the Sun) are largely based on the consideration of the balance of magnetic helicity. This physical variable has also a topological meaning: it is associated with the l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::402d1b98b91f291689d4cfa54846744a
https://doi.org/10.1134/s0016793217010133
https://doi.org/10.1134/s0016793217010133
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1100:012045
Air heat pump units (HPUs) for space heating are used more widely than geothermal ones, mainly due to lower installation costs. The main disadvantages of geothermal installations are their low productivity and coefficient of performance (COP). In thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f1c9e4bb832478e779e6fc44cf90016
https://doi.org/10.1088/1757-899x/1100/1/012045
https://doi.org/10.1088/1757-899x/1100/1/012045
Autor:
D. D. Sokolov, M. E. Artyushkova
Publikováno v:
Astronomy Reports. 49:520-525
We have carried out numerical simulations of solutions of the Jacobi equation on a geodesic with arbitrary curvature, describing the propagation of light in a Universe with inhomogeneities. We used a Runge-Kutta method and a special method involving
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecf2888933447ceffd4c1ceba53990ef
https://doi.org/10.1134/1.1985949
https://doi.org/10.1134/1.1985949
Publikováno v:
Mathematical Notes. 74:393-400
A notion of a renewable geodesic on which the curvature is a random process is introduced. It is shown that the modulus of the Jacobi field along such a geodesic grows exponentially. At the same time, the existence with probability 1 of infinitely ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14b974e76b527d379086416373a15963
https://doi.org/10.1023/a:1026162920287
https://doi.org/10.1023/a:1026162920287
Autor:
D. D. Sokolov
Publikováno v:
Astronomy Reports. 46:521-524
The regular crystallographic method for determining the topology of the spatial section of the Universe from observational data is of limited applicability if the mean density of the Universe has its critical value.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b763b1d06848b4d076daa57cf326952
https://doi.org/10.1134/1.1495028
https://doi.org/10.1134/1.1495028