Results 71 to 80 of about 3,292,250 (298)

Immersed boundary parametrizations for full waveform inversion

open access: yesComputer Methods in Applied Mechanics and Engineering, 2023
23 pages, 21 ...
Tim Bürchner   +3 more
openaire   +3 more sources

Near Surface Full Waveform Inversion

open access: yes, 2019
How can Full Waveform Inversion be used to investigate aquifer structures? Building and usage of initial subsurface models, setup of a seismic profile, combination of seismic, borehole, and GPR ...
Barth, Andreas
core   +1 more source

Bayesian uncertainty estimation for full waveform inversion: A numerical study [PDF]

open access: yes, 2019
Full waveform inversion enables us to obtain high-resolution subsurface images. However, estimating the associated uncertainties is not trivial. Hessian-based method gives us an opportunity to assess the uncertainties around a given estimate based on the
van Leeuwen, Tristan   +9 more
core   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

open access: yesAdvanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab   +8 more
wiley   +1 more source

Application of Laplace Domain Waveform Inversion to Cross-Hole Radar Data

open access: yesRemote Sensing, 2019
Full waveform inversion (FWI) can yield high resolution images and has been applied in Ground Penetrating Radar (GPR) for around 20 years. However, appropriate selection of the initial models is important in FWI because such an inversion is highly ...
Xu Meng, Sixin Liu, Yi Xu, Lei Fu
doaj   +1 more source

Basic Geophysics - Full Waveform Inversion

open access: yes, 2019
Can seismics detect 300-year-old defences? Function and technical implementation of the Full Waveform Inversion, use of the complete seismic amplitude and phase information, sample data and evaluation of the Ettlinger ...
Barth, Andreas
core   +1 more source

Optimal transport for seismic full waveform inversion [PDF]

open access: yesCommunications in Mathematical Sciences, 2016
Full waveform inversion is a successful procedure for determining properties of the earth from surface measurements in seismology. This inverse problem is solved by a PDE constrained optimization where unknown coefficients in a computed wavefield are adjusted to minimize the mismatch with the measured data.
Engquist, Bjorn   +2 more
openaire   +2 more sources

Characterising ice slabs in firn using seismic full waveform inversion, a sensitivity study [PDF]

open access: yes, 2023
The density structure of firn has implications for hydrological and climate modelling, and ice-shelf stability. The structure of firn can be evaluated from depth models of seismic velocity, widely obtained with Herglotz–Wiechert inversion (HWI), an ...
Sebastian Rost   +18 more
core   +1 more source

Monolithic 3D‐Integrated All‐Solid Ion‐Gated Carbon Nanotube Transistors With Tunable Ionic Conductance for Multi‐Timescale Reservoir Computing

open access: yesAdvanced Materials, EarlyView.
A dual‐timescale reservoir based on monolithically 3D (M3D)‐integrated CNT solid ion‐gated transistors is demonstrated. Tunable ionic dynamics and pulse‐engineered operation enable linear and symmetric synaptic updates. The M3D‐integrated array achieves robust temporal encoding and accurate classification of moving MNIST sequences, highlighting its ...
Haksoon Jung   +9 more
wiley   +1 more source

Full waveform inversion and Lagrange multipliers

open access: yesGeophysical Journal International
SUMMARY Full-waveform inversion (FWI) is an effective method for imaging subsurface properties using sparsely recorded data. It involves solving a wave propagation problem to estimate model parameters that accurately reproduce the data.
Ali Gholami, Kamal Aghazade
openaire   +2 more sources

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