Results 31 to 40 of about 719,448 (140)

Velocities of Long Period Surface Waves and Microseisms and Their Use in Structural Studies : Part I. Mantle Love and Mantle Rayleigh Waves and the Structure of the Earth's Upper Mantle. Part II. Microseisms and Their Application to Seismic Exploration [PDF]

open access: yes, 1963
Part I: Phase velocities of Love waves from five major earthquakes are measured over six great circle paths in the period range of 50 to 400 seconds. For two of the great circle paths the phase velocities of Rayleigh waves are also obtained.
Toksöz, M. Nafi
core   +1 more source

Method of Suppressing Rayleigh Waves Based on the Technology of Time-Domain Differential Detection

open access: yesApplied Sciences
Seismic exploration is widely used in shallow engineering applications, yet extracting reflected wave information remains challenging due to contamination from Rayleigh waves.
Debing Zhu   +4 more
doaj   +1 more source

Rayleigh waves generated by a thermal source: A three-dimensional transient thermoelasticity solution [PDF]

open access: yes, 2005
A three-dimensional transient thermoelastic solution is obtained for Rayleigh-type disturbances propagating on the surface of a half-space. These surface waves are generated by either a buried or surface thermal source, which has the form of a ...
Lykotrafitis, G   +3 more
core   +1 more source

Approximate formula for the H/V ratio of Rayleigh waves in incompressible orthotropic half-spaces coated by a thin elastic layer

open access: yesVietnam Journal of Mechanics, 2017
This paper is concerned with the propagation of Rayleigh waves in an incompressible orthotropic elastic half-space coated with a thin incompressible orthotropic elastic layer.
Pham Chi Vinh   +2 more
doaj   +1 more source

Passive manipulation of low resonance scattering frequency associated with subsonic Rayleigh waves on submerged polymer spheres [PDF]

open access: yesMATEC Web of Conferences, 2019
Observation of the backscattering form function for a solid polymethylmeth-acrylate(PMMA) sphere reveals a significant enhancement at low frequencies, which is associated with the subsonic Rayleigh waves resonance.
Zhou Yanling, Fan Jun, Wang Bin
doaj   +1 more source

A Novel and Non-Invasive Approach to Evaluating Soil Moisture without Soil Disturbances: Contactless Ultrasonic System

open access: yesSensors, 2022
Soil moisture has been considered a key variable in governing the terrestrial ecosystem. However, it is challenging to preserve indigenous soil characteristics using conventional soil moisture monitoring methods that require maximum soil contacts.
Dong Kook Woo   +3 more
doaj   +1 more source

High-Accuracy Simulation of Rayleigh Waves Using Fractional Viscoelastic Wave Equation

open access: yesFractal and Fractional, 2023
The propagation of Rayleigh waves is usually accompanied by dispersion, which becomes more complex with inherent attenuation. The accurate simulation of Rayleigh waves in attenuation media is crucial for understanding wave mechanisms, layer thickness ...
Yinfeng Wang   +4 more
doaj   +1 more source

Interacting Seismic Waveguides: Multimode Surface Waves and Leaking Modes

open access: yesSeismica, 2023
Recent developments in seismic recording provide dense sampling of the seismic wavefield that allows the extraction of higher surface wave modes as well as the fundamental, and in some circumstances also P-dominated modes.
Brian Kennett
doaj   +1 more source

Resonant excitation of coupled Rayleigh waves in a short and narrow fluid channel clad between two identical metal plates

open access: yesAIP Advances, 2011
Transmission of ultrasonic waves through a slit between two water immersed brass plates is studied for sub-wavelength plate thicknesses and slit apertures.
Victor M. García-Chocano   +3 more
doaj   +1 more source

A Pseudo-3D Model for Electromagnetic Acoustic Transducers (EMATs)

open access: yesApplied Sciences, 2018
Previous methods for modelling Rayleigh waves produced by a meander-line-coil electromagnetic acoustic transducer (EMAT) consisted mostly of two-dimensional (2D) simulations that focussed on the vertical plane of the material.
Wuliang Yin   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy