Results 101 to 110 of about 1,121,618 (292)

Research on computational propagation and identification of mine microseismic signals based on deep learning.

PLoS ONE
In the mining field, hydraulic fracturing of coal - seam boreholes generates a large number of weak microseismic signals. The accurate identification of these signals is crucial for subsequent positioning and inversion.
Dongmei Liu, Junsong Zhang, Bingrui Zhao, Linsheng Gao, Hao Zhou, Zhiheng Cheng, Liang Chen, Meichen Li   +7 more
doaj   +1 more source

Parasitic photon analysis in sum frequency generation using a bulk PPLN crystal

Journal of the European Optical Society-Rapid Publications
Recent developments in quantum technologies involving atomic systems highlight the need for complex optical waveforms at visible wavelengths, where available wideband modulation devices able to handle high optical power are hard to obtain.
Segur Flora, Welinski Sacha, Demur Romain, Grisard Arnaud, Morvan Loic, Berger Perrine   +5 more
doaj   +1 more source

Full Waveform Ambient Noise Inversion

, 2019
This thesis deals with the development and application of a novel method for seismic interferometry, referred to as full waveform ambient noise inversion. It incorporates the heterogeneous nature of ambient noise sources in space and frequency, and models the full wave propagation physics.
openaire   +2 more sources

Memristive Motion‐Streak Neuron for Spatiotemporal Multiple Object Detection

Advanced Materials, EarlyView.
This work proposes motion‐streak neuron hardware using amorphous In–Ga–Zn–O optoelectronic memristors and dynamic memristors for spatiotemporal multiple‐object detection. The motion streak neuron array processes optical and electrical stimuli, allowing speed‐dependent filament relaxation to encode motion trajectories.
Hyungjun Park, Jin Hong Kim, Hyun Wook Kim, Néstor Ghenzi, Sung Keun Shim, Joon‐Kyu Han, Min Jung Chung, Dong Hoon Shin, Kyung Seok Woo, Cheol Seong Hwang   +9 more
wiley   +1 more source

Statistical Angular Resolution Limit for Ultrawideband MIMO Noise Radar

International Journal of Antennas and Propagation, 2015
The two-dimensional angular resolution limit (ARL) of elevation and azimuth for MIMO radar with ultrawideband (UWB) noise waveforms is investigated using statistical resolution theory.
Xiaoli Zhou, Hongqiang Wang, Yongqiang Cheng, Yuliang Qin, Haowen Chen   +4 more
doaj   +1 more source

Impact of waveform systematics and Gaussian noise on the interpretation of GW231123

Physical Review D
18 pages, 11 ...
S. Bini, K. Król, K. Chatziioannou, M. Isi   +3 more
openaire   +2 more sources

Descriptors to Dynamics: A Materials and Device Perspective on in‐Materio Physical Reservoir Computing for Neuromorphic Edge Intelligence

Advanced Materials, EarlyView.
Intrinsic material dynamics are harnessed as computational resources for neuromorphic in‐materio physical reservoir computing. Defects, ionic motion, interfaces, percolation, geometry, and biasing shape transient states that provide fading memory, nonlinearity, and high‐dimensional projection for simple readout. A descriptor‐to‐dynamics framework links
Kshitij RB Singh, Alif Syafiq Kamarol Zaman, Muzhen Xu, Yuki Usami, Saptarshi Das, Hirofumi Tanaka   +5 more
wiley   +1 more source

Textile‐Based Capacitive Pressure Sensors Enabled by Ultrasonic Spray‐Coated Carbon Black Electrodes and Electrostatic Flocking

Advanced Materials Interfaces, EarlyView.
A 4‐layer Kevlar‐based composite is fabricated by combining ultrasonic spraying and electrostatic flocking. Carbon black dispersion is first deposited onto Kevlar fabric to create a conductive electrode. Nylon fibers are then electrostatically flocked onto the coated fabric, forming a dielectric layer.
Mengdi Chen, Hongxuan Li, Lei Shi, Fei Huang, Yuting Zhu, Wee Chen Gan, Swee Tiam Tan, Kean Aw   +7 more
wiley   +1 more source

Life-cycle costs and infrastructural investments induced by unconventional low-noise aircraft

, 2015
The environment challenge and the expected growth of the market demand impose a technology breakthrough within the aeronautical industry. Although several innovative configurations of airplanes have been analyzed, none of them has been yet chosen as the ...
CENTRACCHIO, FRANCESCO, IEMMA, Umberto, Vitagliano, Fabio Pisi   +2 more
core  

Ultrathin and Flexible Organic Light‐Addressable Potentiometric Sensors

Advanced Materials Technologies, EarlyView.
The first ultrathin, fully organic, and flexible light‐addressable potentiometric sensor (LAPS) is demonstrated. With a thickness of only 2.3–2.9 µm, this standalone film offers sensitivity to electrolyte potential and stable performance for over 170 days.
Ami Ichikawa, Yudai Hemmi, Yuanyuan Guo, Georgios Bairaktaris, Carl Frederik Werner, Tomohiko Murayama, Hiroyuki Matsui   +6 more
wiley   +1 more source