Results 11 to 20 of about 10,493 (257)

An Artificial Seismic Wave Suitable for Suspended Converter Valve in the UHVDC Transmission Project [PDF]

open access: yesE3S Web of Conferences, 2019
The finite element model of suspended converter valve in an UHVDC transmission project with characteristics of flexible is constructed, and its vibration characteristics are simulated and analyzed firstly.
Xiao Jin, Huang Mingduo, Sun Qiguo
doaj   +1 more source

Seismic Waves

open access: yes, 2022
The thesis consists of two parts. The first part deals with the historical development of the science of seismology and the application of the mathematical theory of elasticity to that subject. In the beginning m brief sketch of the method of determining the velocity of body waves at various depths inside the earth is given and the major ...
Gino Segrè, John Stack
openaire   +3 more sources

Estimation of the gas hydrate saturation from multichannel seismic data on the western continental margin of the Chukchi Rise in the Arctic Ocean

open access: yesFrontiers in Earth Science, 2022
A multichannel seismic survey was conducted to investigate the geophysical characteristics of gas hydrates along the western continental margin of the Chukchi Rise around an ARAON mound cluster, which was first recovered in 2016. In the seismic data, gas
Yeonjin Choi   +7 more
doaj   +1 more source

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

Seismic waves increase permeability [PDF]

open access: yesNature, 2006
Earthquakes have been observed to affect hydrological systems in a variety of ways--water well levels can change dramatically, streams can become fuller and spring discharges can increase at the time of earthquakes. Distant earthquakes may even increase the permeability in faults. Most of these hydrological observations can be explained by some form of
Elkhoury, Jean E.   +2 more
openaire   +3 more sources

Energy Characteristics of Seismic Waves on Cardox Blasting Tube

open access: yesGeofluids, 2021
In order to study the energy characteristics of seismic waves on the liquid CO2 blasting system, the blasting seismic wave signal of liquid CO2 blasting was obtained by on-site microseismic monitoring tests.
Xuejiao Cui   +4 more
doaj   +1 more source

Amplitude-Versus-Angle (AVA) Inversion for Pre-Stack Seismic Data with L0-Norm-Gradient Regularization

open access: yesMathematics, 2023
Amplitude-versus-angle (AVA) inversion for pre-stack seismic data is a key technology in oil and gas reservoir prediction. Conventional AVA inversion contains two main stages.
Ronghuo Dai, Jun Yang
doaj   +1 more source

Recent progress on wave gradiometry method

open access: yes地球与行星物理论评, 2023
Wave gradiometry method is a data processing technique based on dense seismic arrays and is suitable for a variety of seismic signals/phases such as P-waves, S-waves, Rayleigh waves, Love waves, and ambient noise.
Feihuang Cao, Chuntao Liang
doaj   +1 more source

Finite-difference modelling to evaluate seismic P-wave and shear-wave field data [PDF]

open access: yesSolid Earth, 2015
High-resolution reflection seismic methods are an established non-destructive tool for engineering tasks. In the near surface, shear-wave reflection seismic measurements usually offer a higher spatial resolution in the same effective signal frequency ...
T. Burschil, T. Beilecke, C. M. Krawczyk
doaj   +1 more source

Wavefield-reconstruction-based full waveform inversion on noisy data in seismic exploration

open access: yesFrontiers in Earth Science
Full waveform inversion (FWI) is commonly used in seismic exploration to calculate parameters of the medium, such as velocity, from the signal as it passes through the medium.
Yuwei Yu   +11 more
doaj   +1 more source

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