Results 151 to 160 of about 313,735 (187)
Some of the next articles are maybe not open access.
Automatic onset phase picking for portable seismic array observation
Acta Seismologica Sinica, 2006Automatic phase picking is a critical procedure for seismic data processing, especially for a huge amount of seismic data recorded by a large-scale portable seismic array. In this study is presented a new method used for automatic accurate onset phase picking based on the property of dense seismic array observations.
Ji Wang +4 more
openaire +1 more source
Regional phase picking on single stations using deep learning
2023Automatic detection of seismic events in processing pipelines at the IDC and many NDCs is mostly done using beamforming on arrays; however, extensive use of single stations can improve the detection capability and accuracy of event location. Advances in deep learning methods enable faster and more accurate processing of large quantities of single ...
Erik Myklebust, Andreas Köhler
openaire +1 more source
Interplanetary Pick-Up Ion Acceleration
Astrophysics and Space Science, 1998Interplanetary pick-up ions originate from ionizations of neutral interstellar atoms in the heliosphere. Over the past periods it was generally expected that after pick-up by the frozen-in solar wind magnetic fields these ions quickly isotropize in velocity space by strong pitch- angle scattering, they do, however, not assimilate to the ambient solar ...
Chalov, S. V., Fahr, H. J.
openaire +2 more sources
A Feedback Stabilized Phase-angle-pick-up System†
International Journal of Control, 1965ABSTRACT A system for generating short pulses at the moment when a sine-wave passes through a predetermined phase angle is described. The phase shift caused by the input signal amplitude variations is automatically corrected by feedback loop. The theory of operation is developed and the optimal conditions necessary to obtain a small error in a broad ...
openaire +1 more source
Arrival picking method for microseismic phases based on curve fitting
Applied Geophysics, 2020Microseismic phase detection and arrival picking are critical steps in the processing of hydraulic fracturing microseismic monitoring data. As the signal-to-noise ratios of P- and S-waves differ because of the influence of focal mechanisms, geometry, and background noise, difficulties are introduced in the effective discrimination of seismic phases and
Zhi-Chao Yu +5 more
openaire +1 more source
CWL Traversal Program. Phase B - Pick-Up""
1959Abstract : The object of this phase of the Traversal Program is to estimate the quantity of V-agent that can be picked up on the clothing of troops traversing contaminated areas.
openaire +1 more source
Deep learning based phase picking on seismological IMS stations
We present our work on training and the application of deep learning algorithms for the automated phase picking of body waves on the the IMS network. We train new IMS data based seismic phase pickers from both EQT and PhaseNet architectures. Phase picking is a necessary step before event localization and characterization and deep learning based models ...Andreas Steinberg, Peter Gaebler
openaire +1 more source
Seismic Phase Picking Using Synchrosqueezed Transform and Attention Mechanism
2023 IEEE 5th International Conference on Civil Aviation Safety and Information Technology (ICCASIT), 2023Zejie Chen, Yao Du, Qian Liu
openaire +1 more source
Phase transitions in 2D materials
Nature Reviews Materials, 2021Wenbin Li, Xiaofeng Qian, Ju Li
exaly
Two-dimensional diamonds from sp2-to-sp3 phase transitions
Nature Reviews Materials, 2022Francesco Lavini +2 more
exaly