Complexity of cortical wave patterns of the wake mouse cortex
Nature Communications, 2023 The cerebral cortex has ongoing electrical activities with rich and complex patterns in space and time. Here, the authors use optical voltage imaging in mice and computational methods, relating these complexities to different levels of wakefulness.
Yuqi Liang +6 more
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Ascertaining when a basin is Wada: the merging method
Scientific Reports, 2018 Trying to imagine three regions separated by a unique boundary seems a difficult task. However, this is exactly what happens in many dynamical systems showing Wada basins.
Alvar Daza +2 more
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Lagrangian simulation and tracking of the mesoscale eddies contaminated by Fukushima-derived radionuclides [PDF]
Ocean Science, 2017 A Lagrangian methodology is developed to simulate, track, document and analyze the origin and history of water masses in ocean mesoscale features.
S. V. Prants +2 more
doaj +1 more source
Lagrangian study of surface transport in the Kuroshio Extension area based on simulation of propagation of Fukushima-derived radionuclides [PDF]
Nonlinear Processes in Geophysics, 2014 Lagrangian approach is applied to study near-surface large-scale transport in the Kuroshio Extension area using a simulation with synthetic particles advected by AVISO altimetric velocity field.
S. V. Prants +2 more
doaj +1 more source
A novel approach for nonlinearity detection in vibrating systems [PDF]
, 2008 This paper proposes a novel approach for nonlinearity detection in vibrating systems. The approach is developed based on a new concept recently proposed by the author known as nonlinear output frequency response functions (NOFRFs) and the properties of ...
Lang, Z.Q., Peng, Z.K.
core +1 more source
Jamming by compressing a system of granular crosses
EPJ Web of Conferences, 2017 A disordered stress-free granular packing can be jammed, transformed into a mechanically rigid structure, by increasing the density of particles or by applying shear deformation.
Zheng Hu +3 more
doaj +1 more source
Statistical analysis of Lagrangian transport of subtropical waters in the Japan Sea based on AVISO altimetry data [PDF]
Nonlinear Processes in Geophysics, 2017 Northward near-surface Lagrangian transport of subtropical waters in the Japan Sea frontal zone is simulated and analysed based on altimeter data for the period from 2 January 1993 to 15 June 2015.
S. V. Prants +2 more
doaj +1 more source
Asymmetric Nonlinear System is Not sufficient for Non-Reciprocal Quantum Wave Diode
, 2017 We demonstrate symmetric wave propagations in asymmetric nonlinear quantum systems. By solving the nonlinear Sch\"ordinger equation, we first analytically prove the existence of symmetric transmission in asymmetric systems with a single nonlinear delta ...
Long, Yang, Ren, Jie, Wu, Gaomin
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Balancing for nonlinear systems
Systems & Control Letters, 1993 We present a method of balancing for nonlinear systems which is an extension of balancing for linear systems in the sense that it is based on the input and output energy of a system. It is a local result, but gives 'broader' results than we obtain by just linearizing the system.
openaire +5 more sources
Observability of nonlinear systems
Information and Control, 1973 The purpose of this paper is to investigate the problem of observability of nonlinear systems. Two sufficient conditions of global observability of nonlinear systems are presented: (1) the ratio condition which is the generalization of Fujisawa and Kuh's (1971) ratio condition of circuit theory, (2) the strongly positive semidefinite condition.
Shauying R. Kou +2 more
openaire +2 more sources