Results 11 to 20 of about 240,730 (259)

Neural Cross-Frequency Coupling Functions [PDF]

open access: yesFrontiers in Systems Neuroscience, 2017
Although neural interactions are usually characterized only by their coupling strength and directionality, there is often a need to go beyond this by establishing the functional mechanisms of the interaction.
Tomislav Stankovski   +4 more
doaj   +4 more sources

Multivariate cross-frequency coupling via generalized eigendecomposition [PDF]

open access: yeseLife, 2017
This paper presents a new framework for analyzing cross-frequency coupling in multichannel electrophysiological recordings. The generalized eigendecomposition-based cross-frequency coupling framework (gedCFC) is inspired by source-separation algorithms ...
Michael X Cohen
doaj   +3 more sources

A two-frequency-two-coupling model of coupled oscillators [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2021
We considered the phase coherence dynamics in a Two-Frequency and Two-Coupling (TFTC) model of coupled oscillators, where coupling strength and natural oscillator frequencies for individual oscillators may assume one of two values (positive/negative).
Hyunsuk Hong, Erik A. Martens
openaire   +4 more sources

Harmonic resonance analysis in high‐renewable‐energy‐penetrated power systems considering frequency coupling

open access: yesEnergy Conversion and Economics, 2022
Renewable energy is a key solution to address the challenges of energy shortages and climate change. Consequently, high‐renewable‐energy‐penetrated power systems (HREPPS) have become a popular trend.
Yang Wang   +5 more
doaj   +1 more source

Synthesis of Cross-Coupled Filters With Frequency-Dependent Couplings [PDF]

open access: yesIEEE Transactions on Microwave Theory and Techniques, 2017
This paper presents a novel synthesis technique for coupled-resonator filters with frequency-dependent couplings. Unlike the works so far appeared in the literature, the proposed technique is not based on the optimization of a network with assigned topology, but it consists in the explicit synthesis of a folded prototype with frequency-dependent ...
Tamiazzo, Stefano   +1 more
openaire   +1 more source

Harmonic Model of Static Var Generator and Analysis of Its Resonance Influence

open access: yesZhongguo dianli, 2022
Static var generators (SVGs) are widely used in photovoltaic (PV) stations because of their fast response speed and wide regulation range, which can meet such needs of the system as dynamic reactive power compensation.
Ke LIU   +9 more
doaj   +1 more source

Untangling cross-frequency coupling in neuroscience [PDF]

open access: yesCurrent Opinion in Neurobiology, 2014
AbstractCross-frequency coupling (CFC) has been proposed to coordinate neural dynamics across spatial and temporal scales. Despite its potential relevance for understanding healthy and pathological brain function, the standard CFC analysis and physiological interpretation come with fundamental problems.
Aru, Juhan   +7 more
openaire   +7 more sources

Harmonic characteristics analysis of modular multilevel matrix converter for fractional frequency transmission system

open access: yes电力工程技术, 2022
The modular multilevel matrix converter (M3C) is the core equipment for fractional frequency transmission system (FFTS). The AC-AC conversion of M3C leads to direct coupling of the ac electrical quantities at different frequencies,causing complex ...
SUN Yuwei   +5 more
doaj   +1 more source

Analysis of Persistent Oscillation Mechanism and Low Frequency Coupling Characteristics of Power System From the Perspective of Grid-Connected Converter

open access: yesIEEE Access, 2021
The voltage disturbance in the weak grid will cause frequency coupling and even persistent oscillation of the grid current of grid connected converter in power system.
Qi Wang, Xingyong Zhao, Peng Wang
doaj   +1 more source

Research Paper: Influence of Intrinsic Decoherence on Entanglement and Teleportation in Jaynes- Cummings Model in a Two- Qutrit System [PDF]

open access: yesفیزیک کاربردی ایران, 2023
This paper uses the Jaynes-Cummings model to investigate the entanglement of a two-qutrit state in a cavity. The entanglement is analyzed as a function of decoherence rate, coupling constant, and frequency of atomic transition.
Azita Naji   +2 more
doaj   +1 more source

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