Results 31 to 40 of about 107,777 (298)

Determination of the structure of the earth's crust by changing the velocity of seismic waves from the earthquake data

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2021
Objective. A study of the structure of the earth's crust by determining the velocities of seismic waves from previously broken sections of the earth's crust.Methods. Two mathematical methods are proposed for determining the seismic wave velocities.
B. I. Shakhtarin   +3 more
doaj   +1 more source

Seasonal and spatial variations in the ocean-coupled ambient wavefield of the Ross Ice Shelf [PDF]

open access: yes, 2019
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Baker, M. G., Aster, R. C., Anthony, R. E., Chaput, J., Wiens, D. A., Nyblade, A., Bromirski, P.
Anthony, Robert E.   +8 more
core   +1 more source

Novel method to pick P waves based on a grey rational analysis

open access: yesNatural Hazards Research, 2021
For monitoring the earthquake ground motion, it is essential to rapidly and accurately detecting P waves' arrival in the seismic signal. To detect the seismic events and pick phases' arrival, some traditional methods are based on the statistical theory ...
Jihua Fu   +4 more
doaj   +1 more source

3D numerical simulation of hydro-acoustic waves registered during the 2012 negros-cebu earthquake [PDF]

open access: yes, 2019
The paper investigates on the hydro-acoustic waves propagation caused by the underwater earthquake, occurred on 6 February 2012, between the Negros and Cebu islands, in the Philippines.
Bellotti, Giorgio   +3 more
core   +1 more source

Separation of Body and Surface Wave Background Noise and Passive Seismic Interferometry Based on Synchrosqueezed Continuous Wavelet Transform

open access: yesApplied Sciences
Passive seismic interferometry is a technique that reconstructs virtual seismic records using ambient noise, such as random noise or microseisms. The ambient noise in passive seismic data contains rich information, with surface waves being useful for the
Xiaolong Li   +3 more
doaj   +1 more source

Spin Transition of Iron in Deep‐Mantle Ferromagnesite

open access: yesGeophysical Monograph Series, Page 115-125., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Jiachao Liu, Suyu Fu, Jung‐Fu Lin
wiley  

+4 more sources

DEFORMATION WAVES AS A TRIGGER MECHANISM OF SEISMIC ACTIVITY IN SEISMIC ZONES OF THE CONTINENTAL LITHOSPHERE

open access: yesГеодинамика и тектонофизика, 2015
Deformation waves as a trigger mechanism of seismic activity and migration of earthquake foci have been under discussion by researchers in seismology and geodynamics for over 50 years.
S. I. Sherman
doaj   +1 more source

Properties of Flares-Generated Seismic Waves on the Sun

open access: yes, 2005
The solar seismic waves excited by solar flares (``sunquakes'') are observed as circular expanding waves on the Sun's surface. The first sunquake was observed for a flare of July 9, 1996, from the Solar and Heliospheric Observatory (SOHO) space mission ...
A. G. Kosovichev   +23 more
core   +1 more source

Subsonic near-surface P-velocity and low S-velocity observations using propagator inversion [PDF]

open access: yes, 2005
Detailed knowledge of near-surface P- and S-wave velocities is important for processing and interpreting multicomponent land seismic data because (1) the entire wavefield passes through and is influenced by the near-surface soil conditions, (2) both ...
Curtis, A., Trampert, J., van Vossen, R.
core   +1 more source

A Bottom‐Up Design Framework for Multifunctional Lattice Metamaterials

open access: yesAdvanced Science, EarlyView.
This study introduces a generative AI framework for designing multifunctional lattice metamaterials. The method combines 3D Gaussian voxel generation with deep learning, enabling greater design freedom and structural performance. The optimized lattice metamaterials achieve enhanced energy absorption by 40–200% compared to conventional structures and ...
Zongxin Hu   +13 more
wiley   +1 more source

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