Results 1 to 10 of about 77,843 (231)
Some of the next articles are maybe not open access.

Coordinated Control of Wave Energy Converters Subject to Motion Constraints

Energies, 2016
Liguo Wang   +2 more
exaly  

Acoustic emission features and P-wave first-motion polarity of tensile fractures in the rock

open access: yes工程科学学报, 2022
To investigate the acoustic emission (AE) characteristics of tensile fracture in the rock, an AE experiment of granite, marble, and red sandstone using an expanding agent for fracture generation was designed.
Xi-ling LIU   +4 more
doaj   +2 more sources

P-wave first-motion polarity determination of waveform data in western Japan using deep learning [PDF]

open access: yesEarth, Planets and Space, 2019
P-wave first-motion polarity is the most useful information in determining the focal mechanisms of earthquakes, particularly for smaller earthquakes.
Shota Hara   +2 more
doaj   +2 more sources

FocMech-Flow: Automatic Determination of P-Wave First-Motion Polarity and Focal Mechanism Inversion and Application to the 2021 Yangbi Earthquake Sequence

open access: yesApplied Sciences, 2023
P-wave first-motion polarity is important for the inversion of earthquake focal mechanism solutions. The focal mechanism solution can further contribute to our understanding of the source rupture process, the fault structure, and the regional stress ...
Shuai Li   +5 more
doaj   +2 more sources

A Novel Time–Frequency Similarity Method for P-Wave First-Motion Polarity Detection

open access: yesSensors
P-wave first-motion polarity is a critical parameter for determining earthquake focal mechanisms. Extracting relative P-wave arrival times and polarity information using waveform cross-correlation techniques can enhance the accuracy of earthquake ...
Yanji Yao   +4 more
doaj   +3 more sources

Lightweight convolutional neural network for real-time earthquake P-wave detection on edge devices in New Zealand [PDF]

open access: yesScientific Reports
Earthquake P-wave detection is the first and most critical step in Earthquake Early Warning (EEW), as detection speed determines how much time is available before strong shaking arrives, while detection accuracy governs the reliability of the warning ...
Danuka Ravishan   +3 more
doaj   +2 more sources

Reliability of Focal Mechanism Solutions for Small and Medium Earthquakes Based on Different Methods

open access: yesTaiyuan Ligong Daxue xuebao, 2022
Three representative small and medium earthquakes in Shanxi seismic belt in recent years were taken as examples. By using different methods, such as the first motion of P-wave, first motion of P-wave combining P/SV/SH amplitude ratio, CAP (Cut and Past),
Penghu GUAN   +4 more
doaj   +1 more source

Study on the influence of the seafloor soft soil layer on seismic ground motion [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2021
In the complex medium system of the sea area, the overlying seawater and the surface soft soil have a significant impact on the seafloor ground motion, which brings great seismic risk to the safety of offshore-engineering structures.
J. Lan, J. Liu, X. Song
doaj   +1 more source

DiTing: A large-scale Chinese seismic benchmark dataset for artificial intelligence in seismologyKey points

open access: yesEarthquake Science, 2023
In recent years, artificial intelligence technology has exhibited great potential in seismic signal recognition, setting off a new wave of research. Vast amounts of high-quality labeled data are required to develop and apply artificial intelligence in ...
Ming Zhao   +3 more
doaj   +1 more source

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