Results 61 to 70 of about 909 (114)

Direct Reconstruction of Wet Foam from Sparse‐View, Dynamic X‐Ray CT Scans

open access: yesAdvanced Engineering Materials, Volume 26, Issue 23, December 2024.
X‐ray imaging of wet foam dynamics is challenging. BubSub, which reconstructs a 3D video of wet foam bubbles directly from sparse‐view X‐ray projections by leveraging prior knowledge about the evolving foam structure is presented. BubSub operates efficiently with minimal memory usage, exhibits robustness against noise, and provides accurate ...
Jens Renders   +3 more
wiley   +1 more source

A semi‐automatic method for block‐structured hexahedral meshing of aortic dissections

open access: yesInternational Journal for Numerical Methods in Biomedical Engineering, Volume 40, Issue 11, November 2024.
The paper presents a method for (block‐)structured hexahedral mesh generation for a cardiovascular condition called aortic dissection, which significantly impacts the morphology of the aorta as well as the health of the patient. Starting from an input surface mesh (A), we generate a skeleton (B), block‐structure (C), implicit surface description, and ...
Domagoj Bošnjak   +4 more
wiley   +1 more source

Construction of approximately equiangular tight frames and their applications [PDF]

open access: yes, 2021
Frames are onsidered a natural extension of orthonormal bases to overomplete spanningsystems. Én the signal proessing ommunity, frames have mainly beome populardue to wavelets; however, many other frame families have been employed in numerousappliations, inluding soure oding, robust transmission, ode division multiple aess(CDMA) systems, and oding ...
openaire   +1 more source

Electronic angle focusing for neutron time‐of‐flight powder diffractometers

open access: yesJournal of Applied Crystallography, Volume 57, Issue 5, Page 1588-1597, October 2024.
A wide‐angle short‐pulse spallation neutron detector bank is shown to provide an opportunity for data processing to make a pseudo‐constant wavelength powder diffraction pattern.A neutron time‐of‐flight (TOF) powder diffractometer with a continuous wide‐angle array of detectors can be electronically focused to make a single pseudo‐constant wavelength ...
Robert B. Von Dreele
wiley   +1 more source

Blind Voice Separation Based on Empirical Mode Decomposition and Grey Wolf Optimizer Algorithm

open access: yesIranian Journal of Electrical and Electronic Engineering, 2019
Blind voice separation refers to retrieve a set of independent sources combined by an unknown destructive system. The proposed separation procedure is based on processing of the observed sources without having any information about the combinational ...
S. Mavaddati
doaj  

Equiangular tight frames that contain regular simplices

open access: yesLinear Algebra and its Applications, 2018
An equiangular tight frame (ETF) is a type of optimal packing of lines in Euclidean space. A regular simplex is a special type of ETF in which the number of vectors is one more than the dimension of the space they span. In this paper, we consider ETFs that contain a regular simplex, that is, have the property that a subset of its vectors forms a ...
Fickus, Matthew   +3 more
openaire   +4 more sources

Landmark-based spatial navigation across the human lifespan. [PDF]

open access: yesElife, 2023
Bécu M   +7 more
europepmc   +1 more source

Random fusion frames are nearly equiangular and tight

open access: yesLinear Algebra and its Applications, 2013
12 pages AMS LaTeX, no ...
openaire   +2 more sources

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