Results 11 to 20 of about 26,631 (230)

An MCMC Bayesian full moment tensor inversion constrained by first-motion polarities and double couple percent [PDF]

open access: yes, 2020
Abstract. Monte Carlo Markov chain (MCMC) samplings can obtain a set of samples by directed random walk, mapping the posterior probability density of the model parameters in Bayesian framework. We perform earthquake waveform inversion to retrieve focal angles or the elements of moment tensor and source location using a Bayesian MCMC method with the ...
Mehrdad Pakzad   +2 more
openaire   +2 more sources

Stick‐Slip Tremor Beneath an Alpine Glacier

open access: yesGeophysical Research Letters, 2021
Sliding of glacial ice over its base is typically described by a frictionless or slowly deforming bed. This view is challenged by recent seismic observations of stick‐slip motion at the ice‐bed interface.
J. Umlauft   +6 more
doaj   +1 more source

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

The role of photospheric converging motion in initiation of solar eruptions

open access: yesFrontiers in Astronomy and Space Sciences, 2022
It is well-known that major solar eruptions are often produced by active regions with continual photospheric shearing and converging motions. Here, through high-accuracy magnetohydrodynamics simulation, we show how solar eruption is initiated in a single
Xinkai Bian   +2 more
doaj   +1 more source

Coordinated Cluster/Double Star observations of dayside reconnection signatures [PDF]

open access: yesAnnales Geophysicae, 2005
The recent launch of the equatorial spacecraft of the Double Star mission, TC-1, has provided an unprecedented opportunity to monitor the southern hemisphere dayside magnetopause boundary layer in conjunction with northern hemisphere observations by ...
M. W. Dunlop   +21 more
doaj   +1 more source

Numerical Studies on the Motions of Magnetically Tagged Cells Driven by a Micromagnetic Matrix

open access: yesMicromachines, 2023
Precisely controlling magnetically tagged cells in a complex environment is crucial to constructing a magneto-microfluidic platform. We propose a two-dimensional model for capturing magnetic beads from non-magnetic fluids under a micromagnetic matrix.
Shanjia Tao   +3 more
doaj   +1 more source

Mechanism of High Frequency Shallow Earthquake Source in Mount Soputan, North Sulawesi

open access: yesIndonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v6i3.122Moment tensor analysis had been conducted to understand the source mechanism of earthquakes in Soputan Volcano during October - November 2010 period. The record shows shallow earthquakes with frequency about 5 - 9 Hz.
Yasa Suparman   +2 more
doaj   +1 more source

Near Real-Time Detection and Moment Tensor Inversion of the 11 May 2022, Dharchula Earthquake

open access: yesGeoHazards, 2023
On 11 May 2022, an earthquake of Mw 5.2 occurred in the Dharchula region of Uttarakhand Himalayas, India. The Uttarakhand State Earthquake Early Warning System (UEEWS) detected and transmitted the warning within 11.61 s from the origin time, taking only ...
Pankaj Kumar   +6 more
doaj   +1 more source

Dynamic Control of Speed and Trajectories of Active Droplets in a Nematic Environment by Electric Field and Focused Laser Beam

open access: yesFrontiers in Physics, 2021
One objective of active matter science is to unveil principles by which chaotic microscale dynamics could be transformed into useful work. A nematic liquid crystal environment offers a number of possibilities, one of which is a directional motion of an ...
Mojtaba Rajabi   +7 more
doaj   +1 more source

Turning Symbolic: The representation of motion direction in working memory

open access: yesFrontiers in Psychology, 2016
What happens to the representation of a moving stimulus when it is no longer present and its motion direction has to be maintained in working memory (WM)?
Tal eSeidel Malkinson   +5 more
doaj   +1 more source

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