Formation of large low shear velocity provinces through the decomposition of oxidized mantle
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-22185-1
Abstract: Large Low Shear Velocity Provinces (LLSVPs) in the lowermost mantle are key to understanding the chemical composition and thermal structure of the deep Earth, but their origins have long been debated. Bridgmanite, the most abundant… read more here.
Keywords: shear velocity; large low; velocity provinces; low shear ... See more keywords
Direct Inversion Algorithm for Shear Velocity Profiling in Dipole Acoustic Borehole Measurements
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2018.2812857
Abstract: The evaluation of radial heterogeneities within formations plays an important role in oil and gas exploration and exploitation. Dipole acoustic well logging data are widely used to invert radial shear velocity profiles, for which efficient… read more here.
Keywords: shear velocity; inversion; dipole acoustic; dispersion ... See more keywords
Joint inversion of formation radial shear-velocity profiles by dipole acoustic logging while drilling
Sign Up to like & getrecommendations! Published in 2023 at "GEOPHYSICS"
DOI: 10.1190/geo2022-0426.1
Abstract: Formation properties near a borehole are frequently altered by mechanical damage from drilling, leading to variations of formation elastic velocities in the radial direction. Inversions of the radial shear profiles are necessary for the real-time… read more here.
Keywords: inversion; joint inversion; shear velocity; formation ... See more keywords
High-shear-velocity Composite Acoustic Materials of AlN/Diamond for Biological MEMS Devices
Sign Up to like & getrecommendations! Published in 2019 at "Sensors and Materials"
DOI: 10.18494/sam.2019.2111
Abstract: Shear horizontal (SH) surface acoustic wave (SAW) sensors formed by combining (100) AlN films with a diamond substrate have been developed in this research. The propagation characteristics of SAW in four composite structures according to… read more here.
Keywords: composite acoustic; acoustic materials; high shear; materials aln ... See more keywords