Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Sri Nivas Chandrasekaran"'
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Power-law attenuation in elastic wave propagation of both compressional and shear waves can be described with multiple relaxation processes. It may be less physical to describe it with fractional calculus medium models, but this approach is useful fo
Externí odkaz:
https://doaj.org/article/c6f8340c739e475f959e8c2efac5ab64
Single-mode equivalent space-time representations of the acoustic wave propagating in a Biot poroelastic medium have previously been found only for asymptotic cases: In the low frequency regime, where the viscous skin depth is greater than the charac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edc217adba5220888e3fb1b889207b7b
http://hdl.handle.net/10852/93783
http://hdl.handle.net/10852/93783
Publikováno v:
The Journal of the Acoustical Society of America. 153:A234-A234
The two main theories for wave propagation in sediments, the Extended Biot theory and the Viscous Grain Shearing (VGS) theory, have been formulated in terms of dispersion equations only. Some have considered the lack of a wave equation to be a weakne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::993234e2c3d417217ae3259971be74ef
https://doi.org/10.1121/10.0018751
https://doi.org/10.1121/10.0018751
Autor:
Sri Nivas Chandrasekaran, Sverre Holm
Publikováno v:
The Journal of the Acoustical Society of America. 146:330-339
The biphasic extended Biot poroviscoelastic model takes into account the squirt flow in grain-grain contacts and introduces the bulk and shear relaxation modes associated with it. This model has been criticized for its empirical approach, but here th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17aeff5fded9bf97713ce6678ea0800f
https://doi.org/10.1121/1.5116139
https://doi.org/10.1121/1.5116139
Autor:
Jeffrey A. Mulligan, Steven G. Adie, Sri Nivas Chandrasekaran, Cory N. Brown, Gavrielle R. Untracht
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 22:246-265
Optical coherence elastography (OCE) is an emerging method to image the mechanical properties of tissue in 3D, with spatial resolution approaching the micrometer-scale. By offering the ability to connect between the cellular and bulk tissue levels, O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24eff03c41698a734ba74f337259218c
https://doi.org/10.1109/jstqe.2015.2481705
https://doi.org/10.1109/jstqe.2015.2481705
Autor:
Sri Nivas Chandrasekaran, Sverre Holm
Publikováno v:
The Journal of the Acoustical Society of America. 146:4322-4323
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5b86566d949d72df79f396837851734
https://doi.org/10.1121/1.5139414
https://doi.org/10.1121/1.5139414
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
Low intensity pulsed ultrasound (LIPUS) is a therapy used clinically for bone fracture and soft tissue healing LIPUS induces functional alterations in cell behavior and has shown potential for cancer therapy. In order to understand the underlying bio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::840fea7665fc56740d9854d47117a3d6
https://doi.org/10.1109/ultsym.2017.8092603
https://doi.org/10.1109/ultsym.2017.8092603
Autor:
Sri Nivas Chandrasekaran, Sverre Holm
Publikováno v:
The Journal of the Acoustical Society of America. 145:1771-1771
The extended Biot poro-viscoelastic model [Chotiros and Isakson, JASA (2014)] like the standard Biot poroelastic model is biphasic and predicts two compressional waves (fast and slow) and one shear wave. Taking squirt flow into account, the model int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea850292e99ff66eca3c15bce7479674
https://doi.org/10.1121/1.5101491
https://doi.org/10.1121/1.5101491
Publikováno v:
The Journal of the Acoustical Society of America. 143:1975-1975
The viscosity extended Biot theory [Sahay, Geophysics (2008)] incorporates pore fluid viscosity in the constitutive relation of the classical Biot theory. The strain rate term due to pore fluid viscosity turns the zero velocity slow S wave mode into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::103090e61942fcb94b4d5d3f391170fe
https://doi.org/10.1121/1.5036507
https://doi.org/10.1121/1.5036507