Results 61 to 70 of about 3,299,544 (255)

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

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  

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

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

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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