Results 41 to 50 of about 3,196,310 (243)

Validation of Rayleigh Wave Theoretical Formulation with Single-Station Rotational Records of Mine Tremors in Lower Silesian Copper Basin

open access: yesSensors, 2021
The classical Rayleigh surface rotational wave in terms of its theoretical notation and, resulting from this, properties associated with the induced seismic phenomena in mines are presented.
Witold Pytel   +3 more
doaj   +1 more source

Seismic Waveguide of Metamaterials

open access: yes, 2012
We have developed a new method of an earthquake-resistant design to support conventional aseismic designs using acoustic metamaterials. We suggest a simple and practical method to reduce the amplitude of a seismic wave exponentially.
Beranek L. L.   +4 more
core   +1 more source

Influence of apparent wave velocity on seismic performance of a super-long-span triple-tower suspension bridge

open access: yesAdvances in Mechanical Engineering, 2015
As one of the main characteristics of seismic waves, apparent wave velocity has great influence on seismic responses of long-span suspension bridges. Understanding these influences is important for seismic design.
Hao Wang   +4 more
doaj   +1 more source

Elastic properties of silicate melts: Implications for low velocity zones at the lithosphere-asthenosphere boundary. [PDF]

open access: yes, 2017
Low seismic velocity regions in the mantle and crust are commonly attributed to the presence of silicate melts. Determining melt volume and geometric distribution is fundamental to understanding planetary dynamics.
Clark, Alisha N, Lesher, Charles E
core   +2 more sources

Traveling Wave Resonance and Simplified Analysis Method for Long-Span Symmetrical Cable-Stayed Bridges under Seismic Traveling Wave Excitation

open access: yesShock and Vibration, 2014
The seismic responses of a long-span cable-stayed bridge under uniform excitation and traveling wave excitation in the longitudinal direction are, respectively, computed.
Zhong-ye Tian, Meng-lin Lou
doaj   +1 more source

Seismic forward and inverse simulation in a tight reservoir model of loess plateau region

open access: yesPetroleum Exploration and Development, 2017
To find out the seismic wave field propagation principles in loess plateau near surface of the Ordos Basin and the seismic response characteristics of tight oil reservoirs, this study established a geological-geophysical model under the real conditions ...
Daxing WANG   +5 more
doaj   +1 more source

Field Tests for Generating Source System and Picking the Seismic Shear Waves to Meet the Engineering Purposes Requirements. [PDF]

open access: yesKirkuk Journal of Science, 2019
Many seismic field tests were carried for the designed and modified seismic apparatuses using to generate seismic shear waves. These apparatus includes: "wooden plank" horizontal traction shear wave source, and a modified geophone for picking the SH-Wave
Muhana Ahmed
doaj   +1 more source

OpenSWPC: an open-source integrated parallel simulation code for modeling seismic wave propagation in 3D heterogeneous viscoelastic media

open access: yesEarth, Planets and Space, 2017
We have developed an open-source software package, Open-source Seismic Wave Propagation Code (OpenSWPC), for parallel numerical simulations of seismic wave propagation in 3D and 2D (P-SV and SH) viscoelastic media based on the finite difference method in
T. Maeda, S. Takemura, T. Furumura
semanticscholar   +1 more source

Transformation seismology: composite soil lenses for steering surface elastic Rayleigh waves. [PDF]

open access: yes, 2016
Metamaterials are artificially structured media that exibit properties beyond those usually encountered in nature. Typically they are developed for electromagnetic waves at millimetric down to nanometric scales, or for acoustics, at centimeter scales. By
Colombi, A   +3 more
core   +2 more sources

Study on Seismic Attenuation Based on Wave-Induced Pore Fluid Dissolution and Its Application

open access: yesApplied Sciences, 2022
Seismic wave attenuation is affected by wave-induced pore fluid dissolution. The mechanism of wave-induced pore fluid dissolution is the mutual dissolution between different fluids caused by pore fluid pressure.
Ziqi Jin   +3 more
doaj   +1 more source

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