Results 31 to 40 of about 95,361 (334)
, 2020 Distributed acoustic sensing (DAS) is an emerging technology that repurposes a fiber-optic cable as a dense array of strain sensors. This technology repeatedly pings a fiber with laser pulses, measuring optical phase changes in Rayleigh backscattered ...
N. Lindsey, E. Martin
semanticscholar +1 more source
Detection of Jovian seismic waves: a new probe of its interior structure [PDF]
, 2011 Knowledge of Jupiter's deep interior would provide unique constraints on the formation of the Solar System. Measurement of its core mass and global composition would shed light on whether the planet formed by accretion or by direct gravitational collapse.
Gaulme, Patrick +4 more
core +2 more sources
Identification of Modal Parameters for Reinforcement of Walls in Earthen Ruins
Advances in Materials Science and Engineering, 2021 The protection of earthen sites plays an important role in the context of preservation of cultural heritage, especially in the inheritance and promotion of history and culture.
Bei Liu +4 more
doaj +1 more source
Motion magnification in coronal seismology [PDF]
, 2016 We introduce a new method for the investigation of low-amplitude transverse oscillations of solar plasma non-uniformities, such as coronal loops, individual strands in coronal arcades, jets, prominence fibrils, polar plumes, and other contrast features ...
Anfinogentov, Sergey +1 more
core +2 more sources
Chromospheric seismology above sunspot umbrae [PDF]
, 2015 The acoustic resonator is an important model for explaining the three-minute oscillations in the chromosphere above sunspot umbrae. The steep temperature gradients at the photosphere and transition region provide the cavity for the acoustic resonator ...
Arber +34 more
core +2 more sources
Urban Seismic Site Characterization by Fiber‐Optic Seismology
Journal of Geophysical Research: Solid Earth, 2020 Accurate ground motion prediction requires detailed site effect assessment, but in urban areas where such assessments are most important, geotechnical surveys are difficult to perform, limiting their availability.
Z. Spica +4 more
semanticscholar +1 more source
Torsional Alfvén waves: magneto-seismology in static and dynamic coronal plasmas [PDF]
, 2011 Aims: We study the properties of torsional Alfvén waves in coronal loops so that they may be exploited for coronal seismological applications. Methods: The governing equation is obtained for standing torsional Alfvén waves of a dynamic, gravitationally
Andries +58 more
core +1 more source