Results 11 to 20 of about 1,741,957 (288)

Structural connectome constrained graphical lasso for MEG partial coherence [PDF]

open access: yesHarvard Data Science Review, 2022
Structural connectivity provides the backbone for communication between neural populations. Since axonal transmission occurs on a millisecond time scale, measures of M/EEG functional connectivity sensitive to phase synchronization, such as coherence, are
Anirudh Wodeyar, Ramesh Srinivasan
doaj   +3 more sources

Comparison of Eye Axial Length Measurements Taken Using Partial Coherence Interferometry and OCT Biometry [PDF]

open access: yesVision
This study evaluates the inter-device measurement properties of partial coherence interferometry (PCI) and spectral domain optical coherence tomography (SD-OCT) in measuring axial length, particularly for myopia management.
Nicola Rizzieri, Alessio Facchin
doaj   +2 more sources

Coherence analysis: Methods, solutions and problems [PDF]

open access: yes, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A coherence function is a measure of the correlation of two signals and may be used as a measure for functional relationship between brain areas.
Irfan, Memon
core   +7 more sources

Agreement and relationship between ultrasonic and partial coherence interferometry measurements of axial length and anterior chamber depth

open access: yesClinical Ophthalmology, 2012
Amany R Wissa, Sherein S Wahba, Maged M RoshdyAin Shams University and National Eye Hospital, Cairo, EgyptPurpose: To find the relationship between axial length (AL) and anterior chamber depth (ACD) measurements, using partial coherence interferometry ...
Wissa AR, Wahba SS, Roshdy MM
doaj   +1 more source

Partial coherence boosts photonic computing [PDF]

open access: yesLight: Science & Applications
Hang Chen, Fei Dai
doaj   +2 more sources

Modeling of the high-resolution optical-coherence diagnostics of bi-refringent biological tissues

open access: yesFrontiers in Physics, 2023
We present a computer model of the polarization-sensitive interference diagnostics of the bi-refringent biological media, with a particular example of the lamella of eye cornea.
O. V. Angelsky   +7 more
doaj   +1 more source

A fast and lightweight tool for partially coherent beamline simulations in fourth-generation storage rings based on coherent mode decomposition

open access: yesJournal of Synchrotron Radiation, 2022
A new algorithm to perform coherent mode decomposition of undulator radiation is proposed. It is based on separating the horizontal and vertical directions, reducing the problem by working with one-dimension wavefronts.
Manuel Sanchez del Rio   +4 more
doaj   +1 more source

Partially coherent sources with circular coherence [PDF]

open access: yesOptics Letters, 2017
A new class of partially coherent light sources is introduced. At the source plane, they exhibit perfect coherence along any annulus that is concentric to the source center. Between two points at different distances from the center, coherence can be partial or even vanishing.
Santarsiero, Massimo   +5 more
openaire   +3 more sources

Spatial spectrum of coherence signal for a defocused object images in digital holographic microscopy with partially spatially coherent illumination [PDF]

open access: yesКомпьютерная оптика, 2018
We study the effect of a decrease in the magnitude of the coherence signal in high-frequency spatial spectrum for a defocused object image in transmission digital holographic microscopy with quasimonochromatic partially spatially coherent illumination. A
Daria Klychkova, Vladimir Ryabukho
doaj   +1 more source

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