Publications by authors named "Brian Hefner"

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Observations of mid-frequency sound propagation on the Washington continental shelf with a subsurface duct.
Dajun Tang, Brian T Hefner, Guangyu Xu, Eric I Thorsos, Ramsey R Harcourt

J Acoust Soc Am· June 2025

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Subsurface acoustic ducts in the Northern California current system.
Guangyu Xu, Ramsey R Harcourt, Dajun Tang, Brian T Hefner, Eric I Thorsos

J Acoust Soc Am· March 2024

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Reverberation due to a moving, narrowband source in an ocean waveguide.
Brian T Hefner, William S Hodgkiss

J Acoust Soc Am· September 2019

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Attenuation of sound in sand sediments due to porosity fluctuations.
Brian T Hefner, Darrell R Jackson

J Acoust Soc Am· August 2014

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A spiral wave front beacon for underwater navigation: transducer prototypes and testing.
Benjamin R Dzikowicz, Brian T Hefner

J Acoust Soc Am· May 2012

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Modeling interface roughness scattering in a layered seabed for normal-incident chirp sonar signals.
Dajun Tang, Brian T Hefner

J Acoust Soc Am· April 2012

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Acoustic propagation from a spiral wave front source in an ocean environment.
Brian T Hefner, Benjamin R Dzikowicz

J Acoust Soc Am· March 2012

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A spiral wave front beacon for underwater navigation: basic concept and modeling.
Brian T Hefner, Benjamin R Dzikowicz

J Acoust Soc Am· June 2011

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Dispersion and attenuation due to scattering from heterogeneities of the frame bulk modulus of a poroelastic medium.
Brian T Hefner, Darrell R Jackson

J Acoust Soc Am· June 2010

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Analysis of flavonol aglycones and terpenelactones in Ginkgo biloba extract: A comparison of high-performance thin-layer chromatography and column high-performance liquid chromatography.
Dean E Gray, Dale Messer, Andrew Porter, Brian Hefner, Dama Logan

J AOAC Int· November 2007

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