Results 21 to 30 of about 541,244 (307)

Transfer Function between EEG and BOLD Signals of Epileptic Activity [PDF]

open access: yesFrontiers in Neurology, 2013
Simultaneous electroencephalogram (EEG)-functional Magnetic Resonance Imaging (fMRI) recordings have seen growing application in the evaluation of epilepsy, namely in the characterization of brain networks related to epileptic activity. In EEG-correlated fMRI studies, epileptic events are usually described as boxcar signals based on the timing ...
Marco eLeite   +5 more
openaire   +4 more sources

Research on improving measurement accuracy of acoustic transfer function of underwater vehicle [PDF]

open access: yesMATEC Web of Conferences, 2021
To address the problem that acoustic transfer functions with underwater platforms cannot be measured accurately, this paper presents a method based on phase compensation to improve the accuracy of acoustic transfer function measurements on underwater ...
Li Jiangqiao   +4 more
doaj   +1 more source

Overcoming thermo-optical dynamics in broadband nanophotonic sensing

open access: yesMicrosystems & Nanoengineering, 2021
Advances in integrated photonics open up exciting opportunities for batch-fabricated optical sensors using high-quality-factor nanophotonic cavities to achieve ultrahigh sensitivities and bandwidths. The sensitivity improves with increasing optical power;
Mingkang Wang   +2 more
doaj   +1 more source

A Matrix Approach for Analyzing Signal Flow Graph

open access: yesInformation, 2020
Mason’s gain formula can grow factorially because of growth in the enumeration of paths in a directed graph. Each of the (n − 2)! permutation of the intermediate vertices includes a path between input and output nodes.
Shyr-Long Jeng   +2 more
doaj   +1 more source

Determination of transfer function in large area system with remote independent signal observations [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2014
[b]Abstract[/b]. On the example of the simulated, large area power grid, the methods for the transfer function determination between distanced excitation/observation points have been proposed and verified.
Piotr Figoń, Zbigniew Staroszczyk
doaj   +1 more source

Estimation of Phase Noise Transfer Function

open access: yesEnergies, 2021
Quantifying frequency converters’ residual phase noise is essential in various applications, including radar systems, high-speed digital communication, or particle accelerators. Multi-input signal source analyzers can perform such measurements out of the
Igor Rutkowski, Krzysztof Czuba
doaj   +1 more source

Phosphatidylinositol transfer proteins and functional specification of lipid signaling pools [PDF]

open access: yesAdvances in Enzyme Regulation, 2007
The diversity of lipid species in biological membranes testifies to the multiple roles of these molecules as structural units, precursors to second messengers, as scaffolding units that impose spatial and temporal regulation on assembly of proteins, and as regulators of the catalytic activities of proteins.
Kim Tyeryar   +4 more
openaire   +3 more sources

Metasurfaces with Asymmetric Optical Transfer Functions for Optical Signal Processing [PDF]

open access: yesPhysical Review Letters, 2019
Metasurface thin films created from arrays of structured optical elements have been shown to perform spatial filtering of optical signals. To extend their usefulness it is important that the symmetry of their response with changes to the in-plane wave vector k_{p}→-k_{p} can be tailored or even dynamically tuned.
Ann Roberts   +4 more
openaire   +4 more sources

Signal Propagation in Electromagnetic Media Modelled by the Two-Sided Fractional Derivative

open access: yesFractal and Fractional, 2021
In this paper, wave propagation is considered in a medium described by a fractional-order model, which is formulated with the use of the two-sided fractional derivative of Ortigueira and Machado.
Jacek Gulgowski   +2 more
doaj   +1 more source

Effect of wave propagation and transfer of a sensor on detected acoustic emission signal

open access: yesMATEC Web of Conferences, 2019
One of the biggest challenge for acoustic emission (AE) signal classification on real constructions is transfer from laboratory measurement on specimens to full scale.
Raček Marek
doaj   +1 more source

Home - About - Disclaimer - Privacy