Results 71 to 80 of about 2,042,519 (287)

Classification of Teleseismic Shear Wave Splitting Measurements: A Convolutional Neural Network Approach

open access: yesGeophysical Research Letters, 2022
Shear wave splitting (SWS) analysis is widely used to provide critical constraints on crustal and mantle structure and dynamic models. In order to obtain reliable splitting measurements, an essential step is to visually verify all the measurements to ...
Yanwei Zhang, Stephen S. Gao
doaj   +1 more source

Autonomous Reconfigurable Modular Conductive Hydrogels for Adaptive and Degradable Bioelectronic Interfaces

open access: yesAdvanced Materials Technologies, EarlyView.
Bridging rigid electrodes with soft, irregular tissues demands more than conductivity alone. Modular conductive hydrogels autonomously reconfigure into conformal electrode‐tissue interfaces, coupling mixed ionic‐electronic conduction with tissue‐like mechanics, self‐healing, and degradability.
Matthew K. Burgess   +4 more
wiley   +1 more source

Changes in seismic anisotropy at Ontake volcano: a tale of two eruptions

open access: yesSeismica
The interaction of faults, fractures, and hydromagmatic systems of volcanoes can lead to complicated stress patterns that vary over short spatial and temporal scales.
Michael Kendall   +6 more
doaj   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

open access: yesAdvanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown   +3 more
wiley   +1 more source

Tectonic Inheritance During Plate Boundary Evolution in Southern California Constrained From Seismic Anisotropy

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The style of convective force transmission to plates and strain‐localization within and underneath plate boundaries remain debated. To address some of the related issues, we analyze a range of deformation indicators in southern California from the ...
Vera Schulte‐Pelkum   +3 more
doaj   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Shear-wave polarization alignment on the eastern flank of Mt. Etna volcano (Sicily, Italy)

open access: yesAnnals of Geophysics, 1996
Recently, with the improvement of three-component seismic networks, studies revealing anisotropic characteristics in different regions have assumed great interest. In a complex volcanic area like Mt.
G. Vilardo   +3 more
doaj   +1 more source

Varying Shear Wave Splitting Parameters Suggest Interaction Between Lithosphere and Asthenosphere in Arxan‐Chaihe Volcanic Field, NE China

open access: yesGeophysical Research Letters, 2022
Over 2 years of broadband seismic data from 27 temporary stations deployed in the Arxan‐Chaihe Volcanic Field (ACVF) provides us a valued opportunity to study mantle deformation and related geodynamic processes in NE China intraplate region. We estimated
Zhengyang Qiang   +3 more
doaj   +1 more source

The origin of shear wave splitting beneath Iceland [PDF]

open access: yesGeophysical Journal International, 2015
The origin of shear wave splitting (SWS) in the mantle beneath Iceland is examined using numerical models that simulate 3-D mantle flow and the development of seismic anisotropy due to lattice-preferred orientation (LPO). Using the simulated anisotropy structure, we compute synthetic SKS waveforms, invert them for fast polarization directions and split
Garrett Ito, Robert Dunn, Aibing Li
openaire   +1 more source

Stress wave attenuation by roof-cutting pre-splitting in deep coal mine roadways: Mechanism and experimental validation

open access: yesInternational Journal of Mining Science and Technology
Dynamic disasters induced by rock mass instability under deep mining conditions constitute a major geotechnical challenge, particularly in coal mine roadways excavated beneath ultra-thick hard roofs.
Jian Jiang   +8 more
doaj   +1 more source

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