Results 21 to 30 of about 94,123 (306)

A review of heart chamber segmentation for structural and functional analysis using cardiac magnetic resonance imaging [PDF]

open access: yes, 2016
Cardiovascular magnetic resonance (CMR) has become a key imaging modality in clinical cardiology practice due to its unique capabilities for non-invasive imaging of the cardiac chambers and great vessels. A wide range of CMR sequences have been developed
Frangi, A.F.   +21 more
core   +1 more source

A Study of Brain Networks Associated with Swallowing Using Graph-Theoretical Approaches [PDF]

open access: yes, 2013
Functional connectivity between brain regions during swallowing tasks is still not well understood. Understanding these complex interactions is of great interest from both a scientific and a clinical perspective.
Bo Luan   +12 more
core   +1 more source

Topological Resonances in Scattering on Networks (Graphs) [PDF]

open access: yesPhysical Review Letters, 2013
We report on a hitherto unnoticed type of resonances occurring in scattering from networks (quantum graphs) which are due to the complex connectivity of the graph - its topology. We consider generic open graphs and show that any cycle leads to narrow resonances which do not fit in any of the prominent paradigms for narrow resonances (classical barriers,
Gnutzmann, S., Schanz, H., Smilansky, U.
openaire   +4 more sources

k-Cycle resonant graphs

open access: yesDiscrete Mathematics, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guo, X. F., Zhang, F. J.
openaire   +1 more source

Understanding Graph Isomorphism Network for rs-fMRI Functional Connectivity Analysis

open access: yesFrontiers in Neuroscience, 2020
Graph neural networks (GNN) rely on graph operations that include neural network training for various graph related tasks. Recently, several attempts have been made to apply the GNNs to functional magnetic resonance image (fMRI) data.
Byung-Hoon Kim, Jong Chul Ye
doaj   +1 more source

On the role of hypercubes in the resonance graphs of benzenoid graphs

open access: yesDiscrete Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Khaled Salem, Sandi Klavzar, Ivan Gutman
openaire   +2 more sources

Vibration Training System Performance Test – Two Mass Absorber System Experiment [PDF]

open access: yesE3S Web of Conferences
Two mass absorber is a vibration control system designed to enhance structural stability by strategically placing additional masses to effectively absorb and dampen vibrations. This technology mitigates resonance and harmful amplitude, reducing the risks
Kurdi Ojo   +5 more
doaj   +1 more source

Causality in real-time dynamic substructure testing [PDF]

open access: yes, 2009
Causality, in the bond graph sense, is shown to provide a conceptual framework for the design of real-time dynamic substructure testing experiments. In particular, known stability problems with split-inertia substructured systems are reinterpreted as ...
Neild, S.A.   +7 more
core   +1 more source

Brain tumor segmentation using graph coloring approach in magnetic resonance images

open access: yesJournal of Medical Signals and Sensors, 2021
It is important to have an accurate and reliable brain tumor segmentation for cancer diagnosis and treatment planning. There are few unsupervised approaches for brain tumor segmentation.
Rouholla Bagheri   +2 more
doaj   +1 more source

Graph neural fields: A framework for spatiotemporal dynamical models on the human connectome.

open access: yesPLoS Computational Biology, 2021
Tools from the field of graph signal processing, in particular the graph Laplacian operator, have recently been successfully applied to the investigation of structure-function relationships in the human brain.
Marco Aqil   +3 more
doaj   +1 more source

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