Zobrazeno 1 - 10
of 390
pro vyhledávání: '"geometric theory"'
Publikováno v:
Mechanical Engineering Journal, Vol 10, Iss 6, Pp 23-00340-23-00340 (2023)
CVT chains are widely used in vehicles because the slip between parts is small, which enables efficient power transmission. However, the intermittent motion of CVT chain pins entering and leaving the pulleys causes undesirable vibration in the whole
Externí odkaz:
https://doaj.org/article/048ca7581e034aeea2ddb33c13c26f30
Publikováno v:
IEEE Access, Vol 11, Pp 22542-22552 (2023)
In this paper, a MMP algorithm is proposed. Compared with the classical algorithm, the proposed algorithm reduces the noise threshold of stably extractable parameters by 15 dB and reduces the computing time by ten or more. As an efficient way to inte
Externí odkaz:
https://doaj.org/article/96b24307be9a4a72a308210842c93dc5
Autor:
Florian Munteanu
Publikováno v:
Symmetry, Vol 16, Iss 1, p 84 (2024)
In this paper will be considered a three-dimensional autonomous quadratic polynomial system of first-order differential equations with three real parameters, the so-called T-system. This system is symmetric relative to the Oz-axis and represents a sp
Externí odkaz:
https://doaj.org/article/09d351c399674afcb4c99acb81909470
Akademický článek
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Autor:
Mikhail O. Katanaev, Alexander V. Mark
Publikováno v:
Universe, Vol 9, Iss 12, p 500 (2023)
Elastic media with defects are considered manifold with nontrivial Riemann–Cartan geometry in the geometric theory of defects. We obtain the solution of three-dimensional Euclidean general relativity equations with an arbitrary number of linear par
Externí odkaz:
https://doaj.org/article/6ae1064f1b0e4934ad75c3195ef21925
Autor:
Florian Munteanu
Publikováno v:
Symmetry, Vol 15, Iss 5, p 1110 (2023)
In the present work, two SIR patterns with demography will be considered: the classical pattern and a modified pattern with a linear coefficient of the infection transmission. By reformulating of each first-order differential systems as a system with
Externí odkaz:
https://doaj.org/article/659cdffa389c4f7a90b2d68a790aa90f
Publikováno v:
Symmetry, Vol 15, Iss 3, p 598 (2023)
In this work, we will consider an autonomous three-dimensional quadratic system of first-order ordinary differential equations, with five parameters and with symmetry relative to the z-axis, which generalize the Hopf–Langford system. By reformulati
Externí odkaz:
https://doaj.org/article/cdccd34b84674a8589e700564ce65203
Autor:
Florian Munteanu
Publikováno v:
Symmetry, Vol 14, Iss 6, p 1248 (2022)
By reformulating the circuit system of Lü as a set of two second order differential equations, we investigate the nonlinear dynamics of Lü’s circuit system from the Jacobi stability point of view, using Kosambi–Cartan–Chern geometric theory.
Externí odkaz:
https://doaj.org/article/12aa0c9c90e7416d92443cbe34fb8206
Akademický článek
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