Author Archives: hamilton@mail.utexas.edu

Approach for Designing Broadband Transducer Systems and Evaluation of Various Cylindrical Transducer Technologies

date February 10, 2016
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Wednesday, February 10, 2016 1:30 p.m. in ARL Conference Room 1 Dr. Corey Bachand BTech Acoustics LLC Barrington, Rhode Island http://www.btechacoustics.com/ Underwater transducers for broadband communication rely on effective tuning and matching to a power […]

Acoustics of Fine-Grained Marine Sediments

date January 29, 2016
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Friday, January 29, 2016 4:00 p.m. in ETC 4.150 Dr. Megan S. Ballard and Dr. Kevin M. Lee Applied Research Laboratories The University of Texas at Austin http://www.arlut.utexas.edu While the acoustics of granular marine sediment […]

Acoustic Scattering from Ocean Sediment Surfaces

date January 25, 2016
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NONLINEAR DYNAMICS SEMINAR Monday, 25 January 2016, 1:00 p.m. RLM 11.204 Dr. Marcia Isakson Applied Research Laboratories The University of Texas at Austin http://www.arlut.utexas.edu Visible light scatters from molecules in the atmosphere, giving the sky […]

The Dense Plasma That Forms Inside a Sonoluminescing Bubble

date November 18, 2015
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PHYSICS DEPARTMENT COLLOQUIUM AND ACOUSTICS SEMINAR Wednesday, November 18, 2015 4:00 p.m. in RLM 4.102 Professor Seth Putterman Department of Physics University of California, Los Angeles http://acoustics-research.physics.ucla.edu/ The passage of a sound wave through a fluid […]

Nonlinear Internal Waves and Coastal Ocean Acoustics: Are We There Yet?

date November 9, 2015
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Monday, November 9, 2015 1:00 p.m. in RLM 11.204 Dr. James F. Lynch Woods Hole Oceanographic Institution Woods Hole, Massachusetts http://www.whoi.edu Chinese experiments in the late 1980’s-90’s showed that the interaction of low frequency (10-1000 Hz) […]

Transmission Matrices: Introduction and Application

date October 30, 2015
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Friday, October 30, 2015 4:00 p.m. in ETC 4.150 David A. Nelson, INCE Bd. Cert., PE Nelson Acoustics Elgin, Texas http://nelsonacoustical.com Layered systems present both challenge and opportunity in noise control.   The equations for a handful […]

Tour of the Knicker Carillon atop the UT Tower

date October 23, 2015
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Friday, October 23, 2015 3:30 p.m. to 4:30 p.m. Samuel K. Hord Department of Mechanical Engineering The University of Texas at Austin https://www.utexas.edu/tours/mainbuilding/carillon/ http://www.dailytexanonline.com/news/2013/04/16/tower-carillon-bells-ring-after-months-of-silence A carillon is a set of at least 23 bells that […]

Call of the Wild Tiger: Exploring Acoustic Monitoring of Wild Tiger Populations

date October 16, 2015
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Friday, October 16, 2015 4:00 p.m. in ETC 4.150 Courtney Dunn, Director The Prusten Project Dallas, Texas http://www.theprustenproject.org Development of new methods of remote monitoring is essential for more efficient as well as minimally disruptive […]

Technology; Process; People: Generating Engineering Solutions to Wicked Problems and Accommodating Complex Construction Realities of Performance Venue Projects

date October 9, 2015
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Friday, October 9, 2015 4:00 p.m. in ETC 4.150 Craig Janssen, Managing Director Idibri Dallas, Texas http://www.idibri.com/ Projects can be separated into phases of needs analysis, engineered solution and implementation. These simple phases belie the […]

Twenty-four Days, Twenty-three Scientists, One Research Vessel and the New England Mud Patch: An Ocean Acoustics Travelogue

date September 25, 2015
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Friday, September 25, 2015 4:00 p.m. in ETC 4.150 Dr. Kevin M. Lee and Professor Preston S. Wilson Applied Research Laboratories The University of Texas at Austin http://www.arlut.utexas.edu/ In July and August of 2015, twenty-three […]

Analysis of Acoustic Scattering from Large Fish Schools Using Bloch Wave Formalism

date September 18, 2015
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Friday, September 18, 2015 4:00 p.m. in ETC 4.150 Dr. Jason A. Kulpe Applied Research Laboratories The University of Texas at Austin http://www.arlut.utexas.edu/ In the open ocean, scattering of sonar signals in the 1-10 kHz […]

Noise Control in the Energy Industry

date September 11, 2015
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Friday, September 11, 2015 4:00 p.m. in ETC 4.150 Benjamin J. Copenhaver ATCO Emissions Management Katy, Texas http://www.atcoem.com/ While natural gas and coal fired power plants are responsible for generating a significant portion of the […]

Metastructure-Based Passive Phased Acoustic Array

date September 4, 2015
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Friday, September 4, 2015 4:00 p.m. in ETC 4.150 Dr. Likun Zhang Center for Nonlinear Dynamics Department of Physics, The University of Texas at Austin http://chaos.utexas.edu/ Many practical applications, including ultrasound engineering and auditorium acoustics, require […]

Measurements of Three-Dimensional Acoustic Propagation over a Translationally Invariant Wedge and in a Scale-Model Canyon

date May 1, 2015
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Friday, May 1, 2015 4:00 p.m. in ETC 4.150 Dr. Jason Sagers Applied Research Laboratories The University of Texas at Austin http://www.arlut.utexas.edu/ Scale model (1:7500) acoustic propagation experiments were conducted in a laboratory tank to investigate three-dimensional (3D) […]

Phonemic Perception Training in Quiet and Noise of English Speech for Chinese College Students

date April 24, 2015
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Friday, April 24, 2015 4:00 p.m. in ETC 4.150 Professor Chang Liu Department of Communication Science and Disorders The University of Texas at Austin http://csd.utexas.edu/ The goal of this study is to examine two hypotheses of our previous […]

A New Methodology for Quantifying Acoustic Wavefronts on Clustered Rocket Nozzles

date April 10, 2015
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Friday, April 10, 2015 4:00 p.m. in ETC 4.150 Andres Canchero Aerospace Engineering & Engineering Mechanics The University of Texas at Austin https://www.ae.utexas.edu/ A new methodology for quantifying acoustic wavefronts is proposed in the present study. Retroreflective […]

A Two-Way Coupled Mode Formalism that Satisfies Energy Conservation for Impedance Boundaries in Underwater Acoustics

date April 3, 2015
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Friday, April 3, 2015 4:00 p.m. in ETC 4.150 Dr. Steven A. Stotts Applied Research Laboratories The University of Texas at Austin www.arlut.utexas.edu This paper shows that energy conservation and the derivation of the two-way coupled mode range equations […]

Experience-Dependent Plasticity in the Subcortical Encoding of Speech Signals

date March 27, 2015
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Friday, March 27, 2015 4:00 p.m. in ETC 4.150 Professor Bharath Chandrasekaran Department of Communication Science & Disorders The University of Texas at Austin csd.utexas.edu Speech is the most important acoustic signal for humans. Our brain is able […]

Wind Turbine Noise Regulations

date March 6, 2015
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Friday, March 6, 2015 4:00pm in ETC 4.150 David A. Nelson, INCE Bd. Cert., PE Nelson Acoustics Elgin, Texas http://www.nelsonacoustical.com The common conception of an environmental noise criterion is a lone dB(A) value. It’s easy […]

Acoustic Metamaterials

date February 20, 2015
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Friday, February 20, 2015 4:00 p.m. in ETC 4.150 Romain Fleury Electrical and Computer Engineering Department The University of Texas at Austin http://www.ece.utexas.edu/ Metamaterials are artificially structured materials that are engineered to interact with waves in anomalous […]