Results 81 to 90 of about 3,292,250 (298)

Ray-Born Modelling and Full Waveform Inversion [PDF]

open access: yes, 2013
Seismic forward modelling is used to simulate seismic wave propagation in the subsurface. Common modelling techniques include methods such as the ray-Born approximation and the finite difference method.
Tengesdal, Hans Christian
core  

Wearable Morphology‐Adaptive in‐Ear Device With Active Cleansing Capability for Multimodal Health Monitoring

open access: yesAdvanced Materials, EarlyView.
We present SCIENCE, an in‐ear multimodal physiological monitor featuring two key innovations. Water‐triggered morphological expansion (a 2‐mm cylinder to a 9‐mm spindle) achieves conformal adaptation across complex canal geometries. Simultaneously, active biofouling mitigation disrupts cerumen barriers, reducing sensor‐skin impedance by 20%.
Shuyun Zhuo   +3 more
wiley   +1 more source

Full-waveform inversion on heterogeneous HPC systems [PDF]

open access: yesComputers & Geosciences, 2016
We present a spectral-element implementation of full seismic waveform inversion for large heterogeneous HPC systems. In this we address the optimal parallelisation configurations of individual simulations, the large I/O requirements of adjoint simulations, and the scheduling of large numbers of forward and adjoint solves, typical for realistic ...
Alexey Gokhberg, Andreas Fichtner
openaire   +2 more sources

Thermoplastic Dielectric Coatings for Flexible Electrodynamic Dust Shields: Structural and Functional Performance

open access: yesAdvanced Materials Interfaces, EarlyView.
Thermoplastic attachment is introduced as a scalable surface coating strategy to improve the durability and dielectric reliability of flexible electrodynamic dust shields. By embedding chemically modified reduced graphene oxide (CMrGO) electrodes within thermoplastic laminates, mechanical degradation, abrasion damage, and vacuum‐induced electrical ...
Ide E. Onal   +6 more
wiley   +1 more source

Application of Full Waveform Inversion to synthetic ultrasonic data

open access: yese-Journal of Nondestructive Testing
Ultrasonic measurements are widely used in non-destructive testing (NDT) and structural health monitoring (SHM) to assess the safety of critical infrastructure. However, concrete poses a significant challenge to conventional imaging methods in NDT.
Alina Suchkova, Ernst Niederleithinger
doaj   +1 more source

Seismic Waveform Inversion by Stochastic Optimization

open access: yesInternational Journal of Geophysics, 2011
We explore the use of stochastic optimization methods for seismic waveform inversion. The basic principle of such methods is to randomly draw a batch of realizations of a given misfit function and goes back to the 1950s.
Tristan van Leeuwen   +2 more
doaj   +1 more source

Advanced Manufacturing of Composite‐Based Systems for Energy Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced manufacturing enables the integration of polymers, ceramics, metal oxides, and composites into architected microstructures with tailored transport pathways. By coupling material selection, manufacturing strategy, and structural design, multifunctional energy systems can simultaneously improve electrochemical performance, thermal management ...
Sri Vaishnavi Thummalapalli   +13 more
wiley   +1 more source

High-resolution imaging of basin-bounding normal faults in the Southern Apennines seismic belt (Italy) by traveltime and frequency-domain full-waveform tomography

open access: yes, 2008
We apply a two-step seismic imaging flow by combined first-arrival traveltime and frequency-domain waveform tomographies to dense wide aperture data collected in the Val d’Agri basin (southern Italy).
Operto, S.   +3 more
core   +2 more sources

Flexible Tactile Actuator Arrays With Integrated Electroosmotic Pumps for Wearable Haptic Systems

open access: yesAdvanced Materials Technologies, EarlyView.
1 ×$\times$ 9 and 4 ×$\times$ 4 flexible tactile actuator arrays integrating electroosmotic pumps are developed to deliver pressure and vibration feedback on wearable platforms. Their thin, compliant structure conforms seamlessly to curved body surfaces, providing intimate contact and enhanced haptic sensations.
Heejin Yu, Joonbum Bae
wiley   +1 more source

Full-waveform adjoint tomography package

open access: yes, 2021
This is an inversion package designed for the SPECFEM3D to do full-waveform adjoint tomography (FWAT). The FWAT can perform both noise full-waveform inversion, teleseismic full-waveform inversion, and their joint inversion. This trial version of the FWAT
Kai Wang
core   +1 more source

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