Results 41 to 50 of about 856 (202)

Electron-beam driven relaxation oscillations in ferroelectric nanodisks [PDF]

, 2015
This work was supported by National Science Foundation Grant No. NSF-DMR-1334428 (P. Chandra).Using a combination of computational simulations, atomic-scale resolution imaging and phenomenological modelling, we examine the underlying mechanism for ...
Scott, James Floyd, Premala Chandra, Scott, James F., Rajeev Ahluwalia, Ashok Kumar, Kumar, A., Kumar, Ashok, Chandra, Premala, Ahluwalia, R., Ng, Nathaniel, Chandra, P., Ng, N., Nathaniel Ng, James F. Scott, Srolovitz, D.J., Srolovitz, David J., David J. Srolovitz, Ahluwalia, Rajeev   +17 more
core   +1 more source

Effect of Hydrogen on the Elastic and Anelastic Properties of the R Phase in Ti50Ni46.1Fe3.9 Alloy

Metals, 2017
The linear and non-linear internal friction, effective Young’s modulus, and amplitude-dependent modulus defect of a Ti50Ni46.1Fe3.9 alloy have been studied after different heat treatments, affecting hydrogen content, at temperatures of 13–300 K, and ...
Konstantin Sapozhnikov, Joan Torrens-Serra, Eduard Cesari, Jan Van Humbeeck, Sergey Kustov   +4 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Comparison of Seismic Performance Assessment Using Observed or Simulated Ground Motions in Seismic Hazard Analysis and Ground Motion Selection

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper illustrates opportunities for the use of simulated ground motions in seismic performance assessment – from seismic hazard, ground‐motion selection, response history analysis, and seismic demand hazard calculation. The illustration is through a comparative analysis with the conventional alternative of observed ground motions.
Vahid Loghman, Brendon A. Bradley, Claudio Schill   +2 more
wiley   +1 more source

Anelasticity and Lateral Heterogeneities in Earth's Upper Mantle: Impact on Surface Displacements, Self-Attraction and Loading, and Ocean Tide Dynamics [PDF]

, 2021
Surface displacement and self-attraction and loading (SAL) elevation induced by ocean tides are known to be affected by material properties of the solid Earth.
Yoshiyuki Tanaka, Huang, Pingping, Klemann, Volker, Thomas, Maik, Zdeněk Martinec, Martinec, Zdeněk, Sulzbach, Roman Lucas, Volker Klemann, Dobslaw, Henryk, Pingping Huang, Maik Thomas, Henryk Dobslaw, Tanaka, Yoshiyuki, Roman Lucas Sulzbach   +13 more
core   +1 more source

Superplasticity and anelasticity in fine-grained Sn-Pb alloys

, 1979
Mechanisms which may play a role in superplastic deformation (grain strain mechanisms, grain boundary sliding (GBS) mechanisms) are reviewed. Two well-known lattice dislocation mechanisms are re-evaluated for grain boundary dislocations (GBDs).
Schneibel, Joachim H.
core   +2 more sources

Linear Toroidal‐Inertial Waves on A Differentially Rotating Sphere with Application to Helioseismology: Modeling, Forward and Inverse Problems

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper develops a mathematical framework for interpreting observations of solar inertial waves in an idealized setting. Under the assumption of purely toroidal linear waves on the sphere, the stream function of the flow satisfies a fourth‐order scalar equation.
Tram Thi Ngoc Nguyen, Damien Fournier, Laurent Gizon, Thorsten Hohage   +3 more
wiley   +1 more source

“Measures of Dissipation in Viscoelastic Media” Extended: Toward Continuous Characterization Across Very Broad Geophysical Time Scales

Geophysical Research Letters, 2019
We develop a conceptual/quantitative framework whereby measurements of Earth's viscoelasticity may be assessed across the broad range of geophysical processes, spanning seismic wave propagation, postseismic relaxation, glacial isostatic adjustment, and ...
Harriet C. P. Lau, Benjamin K. Holtzman
doaj   +1 more source

Influence of water ageing on variation in space charge and thermo‐mechanical properties of epoxy micro‐nano composites

IET Science, Measurement & Technology, 2021
Water ageing was carried out with epoxy micro–nano composite specimen. Silica micro particles and ion trapping nano particles were used as filler material in the composite specimens.
Myneni Sukesh Babu, Ramachandran Velmurugan, Ramanujam Sarathi, Takahiro Imai   +3 more
doaj   +1 more source

A Multivariate Mixed‐Effects Regression Framework for Ground Motion Modeling: Integrating Parametric and Machine Learning Approaches

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 9, Page 1811-1827, 25 July 2026.
ABSTRACT Multivariate ground motion models (GMMs) that capture the correlation between different intensity measures (IMs) are essential for seismic risk assessment. Conventional GMMs are often developed using a two‐stage approach, where separate univariate models with predefined functional forms are fitted first, and correlation is addressed in a ...
Sayed Mohammad Sajad Hussaini, Shaghayegh Karimzadeh, Paulo B. Lourenço   +2 more
wiley   +1 more source