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221
Damage in cohesive granular materials: simulations and geophysical implications
Published 2023-04-01“…Our numerical experiments of edometric compression show that the microscopic deformation quickly becomes very heterogeneous, while our simulations of elastic waves propagation show that a small amount of damage induces a dramatic decrease in the elastic velocity. …”
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222
The Inhomogeneous Waves in a Rotating Piezoelectric Body
Published 2013-01-01“…This paper presents the analysis and numerical results of rotation, propagation angle, and attenuation angle upon the waves propagating in the piezoelectric body. Via considering the centripetal and Coriolis accelerations in the piezoelectric equations with respect to a rotating frame of reference, wave velocities and attenuations are derived and plotted graphically. …”
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223
Reflection of internal waves by sand ripples
Published 1995-01-01“…An investigation is made to study the diffraction of a train of time harmonic progressive waves propagating along the surface of separation of two superposed fluids which are laterally unbounded, the upper fluid being extended infinitely upwards, the lower fluid being of finite depth with sand ripples at the bottom. …”
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224
Linear Dispersion Relation and Depth Sensitivity to Swell Parameters: Application to Synthetic Aperture Radar Imaging and Bathymetry
Published 2015-01-01“…The paper reviews the main phenomena related to swell waves propagation that allow seabed morphology to be sensed. …”
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225
Model Equations for Three-Dimensional Nonlinear Water Waves under Tangential Electric Field
Published 2017-01-01“…We are concerned with gravity-capillary waves propagating on the surface of a three-dimensional electrified liquid sheet under a uniform electric field parallel to the undisturbed free surface. …”
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226
Critical Distance of the Seismic Waves’ Impact in Disintegration of Rock Blasting
Published 2019-01-01“…The aim of the article is to identify the existence of a critical distance and the determination of the critical point from which the propagation of the velocity is not dependent on the type of deposit and the environment in which the seismic wave propagates. Statistical methods were used for these findings. …”
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227
Online Structural Health Monitoring of Rotating Machinery via Ultrasonic Guided Waves
Published 2018-01-01“…The dispersion of cylindrical shaft is investigated and a conclusion that the longitudinal ultrasonic wave propagating along the cylindrical shaft can hardly be interfered by the rotation is obtained. …”
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228
Study on Intelligent Compaction-Equipment Logistics Scheduling and Propagation Characteristics of Vibration Wave in Nonlinear Systems with Multistability Based on Field Test
Published 2020-01-01“…Aiming at the shortages, one typical subgrade located at the Gu’an station of Beijing-Xiong’an city railway is selected to research and finish the field tests; some findings are shown as follows: first, some valuable suggestions about the logistics scheduling of intelligent equipment are proposed, which can break the barriers between the organizations and improve construction efficiency; second, when the vibration wave propagates from the vibratory roller ⟶ surface of filling material ⟶ different buried depths of filling material, the peak acceleration of vibration wave gradually decreases and is hyperbolic distribution approximately. …”
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229
Butterfly Distribution of Relativistic Electrons Driven by Parallel Propagating Lower Band Whistler Chorus Waves
Published 2022-06-01“…Abstract We report results from a test particle simulation to reveal that electron scattering driven by lower band whistler chorus waves propagating along a magnetic field line plays an important role to produce the butterfly distribution of relativistic electrons. …”
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230
Linear stability of a time-dependent, spherically symmetric background in beyond Horndeski theory and the speed of gravity waves
Published 2025-01-01“…In particular, we demonstrate that the class of beyond Horndeski theories, which satisfy the equality of gravity waves’ speed to the speed of light over a cosmological background, feature gravity waves propagating at luminal speeds above a time-dependent inhomogeneous background as well.…”
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231
Creeping Ray Tracing Algorithm for Arbitrary NURBS Surfaces Based on Adaptive Variable Step Euler Method
Published 2015-01-01“…Although the uniform theory of diffraction (UTD) could be theoretically applied to arbitrarilyshaped convex objects modeled by nonuniform rational B-splines (NURBS), one of the great challenges in calculation of the UTD surface diffracted fields is the difficulty in determining the geodesic paths along which the creeping waves propagate on arbitrarilyshaped NURBS surfaces. In differential geometry, geodesic paths satisfy geodesic differential equation (GDE). …”
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232
Initial Moving Mechanism of Densely-Packed Particles Driven by a Planar Shock Wave
Published 2021-01-01“…We found that before particles show notable motion, shock waves complete reflection and transmission, and stress waves propagate downstream on particle skeleton. Due to the particle stress wave, particles successively accelerate and obtain an axial velocity of 6–8 m/s. …”
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233
Effect of Multipath Laser Shock Processing on Microhardness, Surface Roughness, and Wear Resistance of 2024-T3 Al Alloy
Published 2014-01-01“…LSP is based on the application of a high intensity pulsed laser beam (I>1 GW/cm2; t<50 ns) at the interface between the metallic target and the surrounding medium (a transparent confining material, normally water) forcing a sudden vaporization of the metallic surface into a high temperature and density plasma that immediately develops inducing a shock wave propagating into the material. The shock wave induces plastic deformation and a residual stress distribution in the target material. …”
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234
A Mathematical Model for Peristaltic Transport of Micro-Polar Fluids
Published 2011-01-01“…A mathematical model has been constructed for peristaltic transport of micro-polar fluid in a circular cylindrical tube of finite length by letting sinusoidal waves propagate along the wall that induce contraction and relaxation but not expansion beyond the natural boundary. …”
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235
Laser Short-Pulse Effect on Thermodiffusion Waves of Fractional Heat Order for Excited Nonlocal Semiconductor
Published 2022-01-01“…The time-fractional order, nonlocal, and thermal memories are used to compare the wave propagations of the main fields and are discussed graphically for nonlocal silicon material.…”
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236
Resonant Damping and Instability of Propagating Magnetohydrodynamic Body Modes in a Flux Tube with Shear Flow under Photospheric Conditions
Published 2025-01-01“…When the flow shear is sufficiently large, the waves propagate in the forward direction, and their amplitude grows with a small increment.…”
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237
Magnetorotational Instability in Collisional Weakly Ionized Plasma with Distinct Species Velocities
Published 2025-01-01“…In the last case, the finite collisions with weak ionization and ion Hall effects generate another unstable vertical mode compared with the MHD case and also alleviate the unstable waves propagated between the horizontal and vertical directions.…”
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238
Wind Turbine Clutter Mitigation in Coastal UHF Radar
Published 2014-01-01“…Coastal UHF radar provides a unique capability to measure the sea surface dynamic parameters and detect small moving targets, by exploiting the low energy loss of electromagnetic waves propagating along the salty and good conducting ocean surface. …”
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239
Relationship Between Rupture Length and Magnitude of Oceanic Transform Fault Earthquakes
Published 2025-01-01“…Large submarine earthquakes, however, generate hydroacoustic T‐waves propagating through the ocean over long distances. …”
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240
Higher Approximations to Study Statistical Characteristics of Waves in Multiscale Inhomogeneous Media
Published 2018-01-01“…This proves that the incident wave distortion effects act on the intensity fluctuations of a wave propagating in a multiscale randomly inhomogeneous medium.…”
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