Results 31 to 40 of about 313,545 (301)

A computational study on altered theta-gamma coupling during learning and phase coding [PDF]

open access: yes, 2012
There is considerable interest in the role of coupling between theta and gamma oscillations in the brain in the context of learning and memory. Here we have used a neural network model which is capable of producing coupling of theta phase to gamma ...
Yang Zhan   +19 more
core   +1 more source

Impedance Modeling Based Method for Sub/Supsynchronous Oscillation Analysis of D-PMSG Wind Farm

open access: yesApplied Sciences, 2019
Subsynchronous oscillation (SSO) is a critical issue for the direct-drive permanent magnet synchronous generator (D-PMSG) based wind farm integrated to a weak onshore AC grid.
Saijun Yuan   +4 more
doaj   +1 more source

Parametric estimation of cross-frequency coupling

open access: yesJournal of Neuroscience Methods, 2015
Growing experimental evidence suggests an important role for cross-frequency coupling in neural processing, in particular for phase-amplitude coupling (PAC). Although the details of methods to detect PAC may vary, a common procedure to estimate the significance level is the comparison of observed values to those of at least 100 surrogate time series ...
van Wijk, BC   +3 more
openaire   +3 more sources

Stability diagrams of two optically mutual-injected quantum cascade lasers

open access: yesAIP Advances, 2021
The dynamic properties and stability of optically mutual-injected arrays composed of terahertz quantum cascade lasers (THz QCLs) were investigated and compared with those of diode laser (DL) arrays.
Y. Li   +6 more
doaj   +1 more source

Bulk-like Vibrational Coupling of Surface Water Revealed by Sum-Frequency Generation Spectroscopy

open access: yes, 2022
Vibrational coupling between interfacial water molecules is important for energy dissipation after on-water chemistry, yet intensely debated. Here, we quantify the interfacial vibrational coupling strength through the linewidth of surface-specific ...
Yuki, Nagata   +6 more
core   +1 more source

Analyzing possible pitfalls of cross-frequency analysis : poster presentation from Twentieth Annual Computational Neuroscience Meeting CNS*2011 Stockholm, Sweden, 23 - 28 July 2011

open access: yes, 2011
Poster presentation from Twentieth Annual Computational Neuroscience Meeting: CNS*2011 Stockholm, Sweden. 23-28 July 2011. One of the central questions in neuroscience is how neural activity is organized across different spatial and temporal scales.
Michael Wibral   +11 more
core   +1 more source

Analysis of crosstalk and field coupling to lossy MTL's in a SPICE environment [PDF]

open access: yes, 1996
This paper proposes a circuit model for lossy multiconductor transmission lines (MTLs) suitable for implementation in modern SPICE simulators, as well as in any simulator supporting differential operators.
Dilecce, B.   +3 more
core   +1 more source

Control Strategy for Improving Active Frequency Support Capability of Offshore Wind Farm

open access: yesShanghai Jiaotong Daxue xuebao
In low frequency alternating current (AC) transmission systems, offshore wind farm is unable to respond to changes in onshore grid frequency in a timely manner due to frequency decoupling and signal transmission delays between the offshore wind power ...
LI Yibo, ZHOU Qian, ZHU Dandan, JIANG Yafeng, WU Qiuwei, CHEN Jian
doaj   +1 more source

Impact of Catheter Ablation on Sleep Quality and Relationship Between Sleep Stability and Recurrence of Paroxysmal Atrial Fibrillation After Successful Ablation: 24‐Hour Holter‐Based Cardiopulmonary Coupling Analysis

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Sleep fragmentation and sleep apnea are common in patients with atrial fibrillation (AF). We investigated the impact of radio‐frequency catheter ablation (RFCA) on sleep quality in patients with paroxysmal AF and the effect of a change in ...
Woohyeun Kim   +14 more
doaj   +1 more source

Efficient Design of Coupled Microcavities at Optical Frequencies [PDF]

open access: yesMicromachines, 2012
Simple and efficient approaches for filter design at optical frequencies using a large number of coupled microcavities are proposed. The design problem is formulated as an optimization problem with a unique global solution. Various efficient filter designs are obtained at both the drop and through ports.
Mohamed A. Swillam   +2 more
openaire   +3 more sources

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