Results 81 to 90 of about 3,752,884 (240)

Biomimetic 3D Tactile Sensor System With Neuromorphic Encoding for Fascicle‐Level Feedback

Advanced Intelligent Systems, EarlyView.
A 3D biomimetic tactile sensor system converts skin‐like mechanical interactions into neural stimulation‐ready spike patterns. Embedded slow‐ and fast‐adapting sensors distinguish sustained pressure from transient touch, while neuromorphic encoding preserves their temporal signatures.
Minseok Kim, Jaeu Park, Minseok Kang, Yongwoo Kim, Sanghoon Lee   +4 more
wiley   +1 more source

Visco-elastic full-waveform inversion based on multi-objective function

, 2023
Full-waveform inversion (FWI) is one of the core technologies developed in exploration geophysics. Through FWI, the subsurface velocity structures can be constructed and the attenuation parameter (the quality factor Q) model can be inverted, which is ...
Xu, LIANG, Zhen, CHEN, Yue, MA, Chao, LIU, Wenyong, PAN, Dongdong, JIA, Zhiyong, LI   +6 more
core   +1 more source

A Bioinspired Underwater Soft Robot for Active Intravesical Liquid Delivery and Mixing

Advanced Intelligent Systems, EarlyView.
A bioinspired underwater soft robot is reported that integrates an elastic strain energy‐driven soft robotic pump with a programmable flexible magnetic valve, enabling remotely controlled, programmable, and sustained liquid release and mixing. This functionality is enabled by the synergistic integration of elastic strain energy‐driven pumping and ...
Jacob Katona, Sage Bernstein, Boyang Xiao, Amie Zhang, Ellen Lu, Evan Ticknor, Jeffrey J. Tosoian, Xiaoguang Dong   +7 more
wiley   +1 more source

Normalized Nonzero-Lag Crosscorrelation Elastic Full Waveform Inversion

, 2018
Conventional L2 norm based full waveform inversion usually has more than one local minima and is also sensitive to noise in the observed data. The Earth is at least attenuative, and thus, a pixel-to-pixel fitting of the waveform is not feasible in ...
Z. Wu, Z. Zhang, Alkhalifah, Tariq Ali, Wu, Z., T. Alkhalifah, Zhang, Z.   +5 more
core   +1 more source

Elastic reflection waveform inversion with variable density [PDF]

, 2017
Elastic full waveform inversion (FWI) provides a better description of the subsurface than those given by the acoustic assumption. However it suffers from a more serious cycle skipping problem compared with the latter. Reflection waveform inversion (RWI)
Li, Yuanyuan, Guo, Qiang, Li, Zhenchun, Alkhalifah, Tariq Ali   +3 more
core   +1 more source

One-Dimensional Elastic and Viscoelastic Full-Waveform Inversion in Heterogeneous Media Using Physics-Informed Neural Networks

IEEE Access
In this study, we discuss a mathematical framework to handle the inverse problem for the applications of partial differential equations (PDEs). In particular, we focus on wave equations and attempt to identify the wave parameters such as wave velocity ...
Alireza Pakravan
doaj   +1 more source

An Intelligent Piezoelectric System Integrating Self‐Sensing and Autonomous Operation for Adaptive Vibration Control

Advanced Intelligent Systems, EarlyView.
An intelligent piezoelectric vibration control system integrating self‐sensing, autonomous operation, and adaptive bias‐flip synchronized switching damping (SSD) is developed. The system detects vibration extrema, executes synchronized switching control, and autonomously establishes the bias voltage without external sensing instruments, achieving ...
Hao Tang, Weiqun Liu, Guobiao Hu
wiley   +1 more source

3D elastic full-waveform inversion

, 2012
Full Waveform Inversion (FWI) is a depth imaging technique that takes advantage of the full information contained in recorded seismic data. FWI provide high resolution images of subsurface properties, usually seismic velocities or related parameters ...
Warner, Mike, Guasch, Lluis
core  

Elastic Micro-Seismic Full Waveform Inversion with an Unknown Source

, 2018
"Using full waveform inversion (FWI) to locate microseismic sources and image microseismic events allows for a data-driven process (free of picking) that utilizes the full wavefield.
H. Wang, Wang, H., Alkhalifah, Tariq Ali, T. Alkhalifah   +3 more
core   +1 more source

An efficient method of 3-D elastic full waveform inversion using a finite-difference injection method for time-lapse imaging [PDF]

, 2015
International audienceSeismic full waveform inversion is an objective method to estimate elastic properties of the subsurface and is an important area of research, particularly in seismic exploration community.
Singh, Satish, C, Dmitry Borisov, Borisov, Dmitry, Fuji, Nobuaki, Satish C. Singh, Nobuaki Fuji   +5 more
core   +1 more source