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pro vyhledávání: '"Todd Hefner"'
Observed correlations between the sediment grain size and the high-frequency backscattering strength
Publikováno v:
JASA Express Letters. 3:026001
In March 2019, Teledyne RESON and the Applied Physics Laboratory at the University of Washington conducted surveys with a calibrated multibeam echosounder at ten sites in Sequim Bay, a shallow sheltered bay in Washington State, USA. For each site, th
Publikováno v:
Laser Scanning, Theory and Applications
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bdf49525ee5a3820f1f9e572589db32
http://www.intechopen.com/articles/show/title/design-calibration-and-application-of-a-seafloor-laser-scanner
http://www.intechopen.com/articles/show/title/design-calibration-and-application-of-a-seafloor-laser-scanner
Autor:
Joseph Calantoni, B. Todd Hefner
Publikováno v:
The Journal of the Acoustical Society of America. 125:2747-2747
The theory of acoustic virtual mass in granular media hypothesizes that during sound propagation, energy is transferred out of the direction of propagation and into rotational and transverse degrees of freedom that act as an additional virtual mass,
Autor:
Steve G. Kargl, Philip L. Marston, Raymond Lim, Eric I. Thorsos, Todd Hefner, Iris C. Paustian, Kevin L. Williams, Joseph L. Lopes
Publikováno v:
The Journal of the Acoustical Society of America. 125:2701-2701
Measurements were conducted to investigate monostatic and bistatic scattering of targets resting on or buried under a seafloor. The measurements were performed in NSWC‐PCD’s Facility 383, which is a 13.7 m deep, 110 m long, 80 m wide test pool wi
Publikováno v:
The Journal of the Acoustical Society of America. 101:3198-3198
It is demonstrated that elastic response features in the few kilohertz frequency range and at higher frequencies can be observed using a large, acoustically transparent PVDF sheet source. The source was operated in both the impulse mode [Kaduchak et