Results 81 to 90 of about 3,299,598 (299)

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  

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

Lossy Checkpoint Compression in Full Waveform Inversion [PDF]

open access: yes, 2020
Abstract. This paper proposes a new method that combines check- pointing methods with error-controlled lossy compression for large-scale high-performance Full-Waveform Inversion (FWI), an inverse problem commonly used in geophysical exploration. This combination can signif- icantly reduce data movement, allowing a reduction in run time as well as peak ...
Navjot Kukreja   +5 more
openaire   +3 more sources

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

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

Amorphous IGZO, Crystalline IGO, Amorphous IGZO Triple Active Layer With 2D Electron Gas at Both Interfaces for High Performance TFTs

open access: yesAdvanced Materials Technologies, EarlyView.
The dual‐gate coplanar a‐IGZO/C‐IGO/a‐IGZO TFT is investigated, exhibiting a high filed‐effect mobility of 53.81 cm2 V−1s−1 with excellent stability. The amorphous IGZO layer provides smooth surface, which carrier scattering and high‐quality interface between gate insulator and active layer.
Solbee Lee   +4 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

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

open access: yesAdvanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting   +5 more
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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