Results 11 to 20 of about 1,998,384 (219)
Poincaré Map Approach to Global Dynamics of the Integrated Pest Management Prey-Predator Model
Complexity, 2020 An integrated pest management prey-predator model with ratio-dependent and impulsive feedback control is investigated in this paper. Firstly, we determine the Poincaré map which is defined on the phase set and discuss its main properties including ...
Zhenzhen Shi +3 more
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Torus and Subharmonic Motions of a Forced Vibration System in 1 : 5 Weak Resonance
Advances in Mathematical Physics, 2020 The Neimark-Sacker bifurcation of a forced vibration system is considered in this paper. The series solution to the motion equation is obtained, and the Poincaré map is established.
Yong Guo
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Residence-time distributions for chaotic flows in pipes [PDF]
, 1999 In this paper we derive two rigorous properties of residence-time distributions for flows in pipes and mixers motivated by computational results of Khakhar et al. [Chem. Eng. Sci. 42, 2909 (1987)], using some concepts from ergodic theory.
Betz, David +2 more
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Neuromodulation: Technology at the Neural Interface, EarlyView., 2021 Abstract Background Posttraumatic stress disorder (PTSD) is associated with autonomic dysfunction as indicated by deficits in the sympathetic and parasympathetic nervous systems. These abnormalities are expressed as elevated heart rate and reduced heart rate variability (HRV), respectively.
Camila Cosmo +4 more
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Resonances in a spring-pendulum: algorithms for equivariant singularity theory [PDF]
, 1998 A spring-pendulum in resonance is a time-independent Hamiltonian model system for formal reduction to one degree of freedom, where some symmetry (reversibility) is maintained.
Arnol'd V I +35 more
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On the Proper Treatment of Dynamics in Cognitive Science
Topics in Cognitive Science, EarlyView., 2023 Abstract This essay examines the relevance of dynamical ideas for cognitive science. On its own, the mere mathematical idea of a dynamical system is too weak to serve as a scientific theory of anything, and dynamical approaches within cognitive science are too rich and varied to be subsumed under a single “dynamical hypothesis.” Instead, after first ...
Randall D. Beer
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Vibration-based damage detection in plates by using time series analysis [PDF]
, 2008 This paper deals with the problem for vibration health monitoring (VHM) in structures with nonlinear dynamic behaviour. It aims to introduce two viable VHM methods that use large amplitude vibrations and are based on nonlinear time series analysis.
Manoach, Emil, Trendafilova, I.
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Dynamical Properties of a Herbivore-Plankton Impulsive Semidynamic System with Eating Behavior
Complexity, 2020 In this paper, an impulsive semidynamic system of the relationship between plankton and herbivore is established, and the Poincaré map method is used to extend the new properties of the model.
Yufei Wang, Huidong Cheng, Qingjian Li
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Poincar\'e polynomials for Abelian symplectic quotients of pure $r$-qubits via wall-crossings [PDF]
, 2015 In this paper, we compute a recursive wall-crossing formula for the Poincar\'e polynomials and Euler characteristics of Abelian symplectic quotients of a complex projective manifold under a special effective action of a torus with non-trivial characters.
Molladavoudi, Saeid +1 more
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Are physiological oscillations physiological?
The Journal of Physiology, EarlyView., 2023 Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
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