Results 1 to 10 of about 153,856 (313)

Multiscale measures of phase-space trajectories [PDF]

open access: goldChaos: An Interdisciplinary Journal of Nonlinear Science, 2020
Characterizing the multiscale nature of fluctuations from nonlinear and nonstationary time series is one of the most intensively studied contemporary problems in nonlinear sciences. In this work, we address this problem by combining two established concepts—empirical mode decomposition (EMD) and generalized fractal dimensions—into a unified analysis ...
Tommaso Alberti   +4 more
openalex   +6 more sources

Quantum particle trajectories and geometric phase [PDF]

open access: greenJournal of Experimental and Theoretical Physics Letters, 2000
"Particle"-trajectories are defined as integrable $dx_ dp^ = 0$ paths in projective space. Quantum states evolving on such trajectories, open or closed, do not delocalise in $(x, p)$ projection, the phase associated with the trajectories being related to the geometric (Berry) phase and the Classical Mechanics action. High Energy Physics properties of
M. Dima
openalex   +4 more sources

Dynamical Temperature from the Phase Space Trajectory

open access: diamondHungarian Journal of Industry and Chemistry, 2017
In classical statistical mechanics the trajectory in phase space represents the propagation of a classical Hamiltonian system. While trajectories play a key role in chaotic system theory, exploitation of a single trajectory has yet to be considered. This
Baranyai András
doaj   +2 more sources

Trajectory phase transitions in noninteracting spin systems [PDF]

open access: yesPhysical Review E, 2020
We show that a collection of independent Ising spins evolving stochastically can display surprisingly large fluctuations towards ordered behaviour, as quantified by certain types of time-integrated plaquette observables, despite the underlying dynamics being non-interacting.
Loredana M. Vasiloiu   +3 more
openaire   +3 more sources

Исследование дробной динамической системы Селькова

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
Предложена дробная нелинейная динамическая система Селькова, для описания микросейсмических явлений. Эта система известна наличием автоколебательных режимов и применяется в биологии для описания гликолитических колебаний субстрата и продукта ...
Паровик, Р.И.
doaj   +1 more source

Influence of Coil Current and Oil Film Thickness on Hopf Bifurcation of MLDSB

open access: yesEnergies, 2022
Magnetic-liquid double-suspension bearing (MLDSB) is composed of an electromagnetic supporting system and a hydrostatic supporting system. Due to its greater supporting capacity and stiffness, it is appropriate for middle-speed applications, overloading,
Jianhua Zhao   +6 more
doaj   +1 more source

Studies of the Fractional Selkov Dynamical System for Describing the Self-Oscillatory Regime of Microseisms

open access: yesMathematics, 2022
A non-linear fractional Selkov dynamic system for mathematical modeling of microseismic phenomena is proposed. This system is a generalization of the previously known Selkov system, which has self-oscillatory modes and is used in biology to describe ...
Roman Ivanovich Parovik
doaj   +1 more source

Mathematical modeling of oscillator hereditarity [PDF]

open access: yesКомпьютерные исследования и моделирование, 2015
The paper considers hereditarity oscillator which is characterized by oscillation equation with derivatives of fractional order $\beta$ and $\gamma$, which are defined in terms of Gerasimova-Caputo.
Roman Ivanovich Parovik
doaj   +1 more source

Дробная математическая модель Макшерри

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
В статье предложено обобщение математической модели Макшерри для моделирования искусственной электрокардиограммы — изменяющегося во времени сигнала, отражающий ионный ток, который заставляет сердечные волокна сокращаться, а затем расслабляться. Обобщение
Алимов, Х.Т.   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy