Field experiments on the velocity dispersion and attenuation of acoustic waves through sandy sediments in shallow waters

2004 ◽  
Vol 115 (5) ◽  
pp. 2399-2399
Author(s):  
Tokuo Yamamoto ◽  
Haruhiko Yamaoka ◽  
Junichi Sakakibara
Keyword(s):  
Acoustic Waves ◽  
Field Experiments ◽  
Velocity Dispersion ◽  
Shallow Waters ◽  
Sandy Sediments ◽  
Dispersion And Attenuation

scholarly journals Effect of randomly inhomogeneous seafloor on the reflection and scattering of plane acoustic waves in shallow waters.

1992 ◽  
Vol 91 (4) ◽  
pp. 2424-2425
Author(s):  
Mohsen Badiey ◽  
Alexander H.‐D. Cheng ◽  
Indra Jaya ◽  
Susan McGeary ◽  
Morris Schulkin
Keyword(s):  
Acoustic Waves ◽  
Shallow Waters

scholarly journals On the genus Raphidrilus Monticelli, 1910 (Polychaeta: Ctenodrilidae) with description of two new species

Zootaxa ◽  
2011 ◽  
Vol 2804 (1) ◽  
pp. 1 ◽  
Author(s):  
WAGNER F. MAGALHÃES ◽  
JULIE H. BAILEY–BROCK ◽  
JENNIFER S. DAVENPORT
Keyword(s):  
New Species ◽  
Shallow Waters ◽  
Two New Species ◽  
Sandy Sediments ◽  
Invasive Alga

Raphidrilus harperi sp. nov., is described from the Gulf Intracoastal Waterway (GIWW) in Venice, Florida from sediments consisting of coarse sands and shell hash. Raphidrilus hawaiiensis sp. nov., is described from Oahu’s shallow waters and inhabits a successful invasive alga in Waikiki and sandy sediments adjacent to ocean outfalls in Barbers Point and Sand Island, off Honolulu. The genus Raphidrilus is emended, the distinctness between the genera Raricirrus and Raphidrilus is confirmed and keys to all recognized genera of Ctenodrilidae and species of Raphidrilus are given.

scholarly journals IMPACT OF FRACTURED-POROUS MEDIA TRANSPORT PROPERTIES CHANGE IN SEISMIC WAVEFIELDS

2019 ◽  
Vol 2 (2) ◽  
pp. 248-253
Author(s):  
Mikhail Novikov ◽  
Vadim Lisitsa ◽  
Tatiana Khachkova
Keyword(s):  
Co2 Sequestration ◽  
Velocity Dispersion ◽  
Ct Scans ◽  
Filling Material ◽  
Wave Fields ◽  
Poroelastic Material ◽  
Porous Reservoir ◽  
Saturated Media ◽  
Wave Induced ◽  
Dispersion And Attenuation

In this paper we research the response of carbonates dissolution when interacting with carbon dioxide in the seismic wave fields in a fractured-porous reservoir. We numerically estimate the change of limestone physical properties due to CO2 sequestration based on the analysis of samples CT-scans. Obtained estimations is then used to model a poroelastic material, which we use as fracture-filling material in statistically generated fractured porous fluid-saturated media models. A numerical modeling of wave propagation is performed to estimate a velocity dispersion and attenuation caused by a wave-induced fluid flow.

Measurement of the velocity dispersion and attenuation in a liquid metal at GHz frequencies

2008 ◽  
Vol 123 (5) ◽  
pp. 3550-3550
Author(s):  
Oliver B. Wright ◽  
Bernard Perrin ◽  
Osamu Matsuda ◽  
Vitali Gusev
Keyword(s):  
Liquid Metal ◽  
Velocity Dispersion ◽  
Dispersion And Attenuation
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