A novel phase portrait for neuronal excitability. [PDF]
PLoS ONE, 2012 Fifty years ago, FitzHugh introduced a phase portrait that became famous for a twofold reason: it captured in a physiological way the qualitative behavior of Hodgkin-Huxley model and it revealed the power of simple dynamical models to unfold complex ...
Guillaume Drion +3 more
doaj +7 more sources
Unwrapping the phase portrait features of adventitious crackle for auscultation and classification: a machine learning approach. [PDF]
J Biol Phys, 2021 The paper delves into the plausibility of applying fractal, spectral, and nonlinear time series analyses for lung auscultation. The thirty-five sound signals of bronchial (BB) and pulmonary crackle (PC) analysed by fast Fourier transform and wavelet not ...
Sreejyothi S +4 more
europepmc +2 more sources
Spontaneous imbibition in fractal tortuous micro-nano pores considering dynamic contact angle and slip effect: phase portrait analysis and analytical solutions. [PDF]
Sci Rep, 2018 Shales have abundant micro-nano pores. Meanwhile, a considerable amount of fracturing liquid is imbibed spontaneously in the hydraulic fracturing process.
Li C, Shen Y, Ge H, Zhang Y, Liu T.
europepmc +2 more sources
Review Article: "The Lagrangian description of aperiodic flows: a case study of the Kuroshio Current" [PDF]
Nonlinear Processes in Geophysics, 2012 This article reviews several recently developed Lagrangian tools and shows how their combined use succeeds in obtaining a detailed description of purely advective transport events in general aperiodic flows.
C. Mendoza, A. M. Mancho
doaj +7 more sources
The phase portrait of the Hamiltonian system associated to a Pinchuk map
Anais da Academia Brasileira de Ciências, 2018 In this paper we describe the global phase portrait of the Hamiltonian system associated to a Pinchuk map in the Poincaré disc. In particular, we prove that this phase portrait has 15 separatrices, five of them singular points, and 7 canonical regions ...
JOAN CARLES ARTÉS +2 more
doaj +2 more sources
Lagrangian Descriptors for Stochastic Differential Equations: A Tool for Revealing the Phase Portrait of Stochastic Dynamical Systems [PDF]
International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2016 In this paper we introduce a new technique for depicting the phase portrait of stochastic differential equations. Following previous work for deterministic systems, we represent the phase space by means of a generalization of the method of Lagrangian ...
Balibrea-Iniesta, Francisco +3 more
core +5 more sources
[Convolutional neural network human gesture recognition algorithm based on phase portrait of surface electromyography energy kernel]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2021 Xu L, Zhang K, Xu Z, Yang G.
europepmc +2 more sources
Qualitative analysis and solitary wave solutions of the new extended (3+1)-dimensional Sakovich equation in fluid dynamics [PDF]
Scientific ReportsThis article investigates the qualitative behavior and solitary wave solutions of the extended (3+1)-dimensional Sakovich equation from fluid dynamics. By using a traveling wave transformation, the new extended (3+1)-dimensional Sakovich equation can be ...
Musong Gu, Fanming Liu
doaj +2 more sources
The phase portrait of a matter bounce in Horava-Lifshitz cosmology [PDF]
, 2010 The occurrence of a bounce in FRW cosmology requires modifications of general relativity. An example of such a modification is the recently proposed Horava-Lifshitz theory of gravity, which includes a ``dark radiation'' term with a negative coefficient ...
Bakas I +27 more
core +2 more sources
Usage of phase portraits in analysis of doppler signals reflected from drone rotors [PDF]
Радиофизика и электроника, 2020 Subject and Purpose. Comparative analysis of the shapes of phase portraits of Doppler signals (DS) reflected from drone rotating rotors is given with regard to different time delays.
R.E. Pashchenko +2 more
doaj +1 more source