Results 71 to 80 of about 856 (202)
Activation Energy Measurement of Oxygen Ordering in a Nb-Ti Alloy by Anelastic Relaxation
Materials Research, 2002 Metals with bcc structure are able to dissolve large amounts of interstitial element atoms in the form of oxygen. These atoms diffuse through the lattice by jumping into octahedral sites with equivalent symmetry, causing strong alterations in the ...
Niemeyer T.C. +4 more
doaj
Earthquake Spectra, Volume 42, Issue 2, May 2026.In this paper, the physics‐based numerical simulation of the strongest instrumental earthquake in the recent seismic history of Italy, i.e., the Nov 23, 1980 Irpinia earthquake in Southern Italy, with magnitude MW 6.8, is presented and discussed. A 3D spectral element model covering an extended region (147 × 110 km2) was constructed, with a frequency ...
Roberto Paolucci +5 more
wiley +1 more source
Anelasticity in cast Mg-Gd alloys [PDF]
, 2017 Cyclic loading-unloading tests in tension and compression were carried out on pure Mg and alloys with 0.4, 1.5 and 4.2 at% Gd, over a range of grain sizes, to quantify the solute and strain dependence of the materials anelasticity in the form of ...
Nagarajan, D.
core +1 more source
The anelasticity of zinc and its implications for the Earth’s inner core
, 2021 The Earth’s inner core exhibits significant anisotropy in both seismic velocity and attenuation as well as hemispherical and depth variations. These observations point to an inner core that is both complex and dynamic.
Simon Hunt +8 more
core +1 more source
Hunga‐Tonga Volcano Plumbing System Inferred From Virtual Seismometer Approach
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.Abstract We present a surface wave tomography application based on event‐pair interferometry to investigate local (∼100 km) mid‐ocean crustal structures, with a particular focus on imaging a potential crustal solidified intrusive complex in a region lacking seismic stations.
Taghi Shirzad +3 more
wiley +1 more source
Viscoacoustic Full Wavefield Migration With Tomographic Q Estimation
Geophysical Prospecting, Volume 74, Issue 4, May 2026.ABSTRACT Seismic wave propagation in the Earth's subsurface is influenced by anelastic attenuation, which causes energy loss and waveform distortion, degrading image resolution. This effect, quantified by the quality factor (Qf${{\textit {Q}}_f}$), is particularly pronounced in settings such as carbon capture and storage and near‐surface studies, where
Mohammad Safari, Dirk Jacob Verschuur
wiley +1 more source
Mechanisms of anelasticity in Fe-Ge-based alloys
, 2009 Internal friction (IF) effects in a series of Fe-Ge-C alloys with 3-27 at.%Ge and about 0.01-0.04 at.%C have been examined and are related to possible mechanisms of anelasticity according to the different alloy structures. While Fe-3 at.%Ge and Fe-12 at.%
Neuhäuser, H. +3 more
core +2 more sources
Compressional wave dispersion due to rock matrix stiffening by clay squirt flow
Geophysical Research Letters, 2016 The standard Biot‐Gassmann theory of poroelasticity fails to explain strong compressional wave velocity dispersion experimentally observed in 12 tight siltstone with clay‐filled pores.
Jing Ba +3 more
doaj +1 more source
Journal of Marine Science and EngineeringAccurate ocean tide models are required to remove tidal loading effects in geophysical research. Beyond a mere intercomparison, the accuracy of eight modern global models (DTU10, EOT20, FES2014b, FES2022b, GOT4.10c, HAMTIDE11a, OSU12, TPXO10-atlas-v2 ...
Junjie Wang, Xiufeng He
doaj +1 more source
The Effect of Anelasticity on Periods of the Earth's Free Oscillations (Toroidal Modes) [PDF]
, 1975 It is known that the anelastic properties of the Earth characterized by a ‘Q’ structure will affect the periods of free oscillation. It is generally considered that the effect is negligible compared to the other perturbing effects due to rotation ...
Archambeau, Charles B., Liu, Hsi-Ping
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