Friday, September 7, 2012 4:00 p.m. in ETC 4.150 Mustafa Z. Abbasi and Joelle I. Suits Department of Mechanical Engineering Applied Research Laboratories The University of Texas at Austin www.me.utexas.edu A trapped or injured firefighter in a burning building has a small window of time to escape safely. This seminar will present work underway to…
10:00 a.m. Wednesday, July 25, 2012 Applied Research Laboratories, Conference Room 6 (Open to the general public.) 10000 Burnet Road Jason D. Sagers Department of Mechanical Engineering Applied Research Laboratories The University of Texas at Austin Austin, Texas http://www.me.utexas.edu/ Many problems in shallow water acoustics require accurate predictions of the acoustic field in space and…
Tuesday, May 1, 2012 11:00 a.m. ETC 4.120 Theodore F. Argo IV Department of Mechanical Engineering The University of Texas at Austin Austin, Texas http://www.me.utexas.edu/ The propagation of acoustic waves through water-saturated granular sediments has been widely studied, yet existing propagation models cannot adequately predict the speed and attenuation of sound across the range of…
Monday, April 30, 2012 12:00 p.m. ETC 5.132 Matthew D. Guild Department of Mechanical Engineering The University of Texas at Austin Austin, Texas http://www.me.utexas.edu/ For many years, the concept of cloaking has been a prevalent theme in science fiction and popular culture, from Start Trek to Harry Potter. It has not been until more recently…
Friday, April 27, 2012 4:00 p.m. BME 3.204 Prof. J. Brian Fowlkes Biomedical Engineering and Radiology The University of Michigan Ann Arbor, Michigan http://www.bme.umich.edu Ever wondered why bubbles repeatedly form on the side of a drinking glass and how this would ever relate to medical imaging? Why do Mentos make such a great explosion when…
Tuesday, April 24, 2012 12:30 p.m. ACES 2.302 Prof. Antonius van der Steen Head of Biomedical Engineering Erasmus Medical Center Rotterdam, the Netherlands http://www.erasmusmc.nl/?lang=en Over the last decade, serious academic and industrial efforts have been made to further develop an intravascular ultrasound (IVUS)—a technology that uses an ultrasound transducer on the tip of a catheter…
Friday, April 20, 2012 12:30 p.m. CPE 2.216 Sangpil Yoon The University of Texas at Austin Department of Mechanical Engineering http://www.me.utexas.edu/ A new approach to measure the mechanical properties of soft tissues is presented. Quantitative measurements of the mechanical properties were achieved by model-based reconstruction. These highly localized measurements provide detailed information about the viscoelastic…
Tuesday, April 3, 2012 2:00 p.m. ACES 2.302 Prof. Jianmin Qu Chair, Department of Civil and Environmental Engineering Walter P. Murphy Professor Northwestern University http://www.northwestern.edu/ Ultrasonic nondestructive evaluation (NDE) techniques have been used extensively for inspecting and monitoring various engineering structures and components. The vast majority of these ultrasonic NDE techniques utilize only the linear…
Friday, March 30, 2012 4:00 p.m. ETC 4.150 Professor Lev A. Ostrovsky National Oceanic and Atmospheric Administration (NOAA) Earth System Research Laboratory Boulder, Colorado esrl.noaa.gov and Department of Applied Mathematics University of Colorado Boulder, Colorado amath.colorado.edu/cmsms Numerous experiments show that Earth materials, such as rock and soils, can have anomalously strong vibroacoustic nonlinearity which is…
Friday, March 9, 2012 4:00 p.m. ETC 4.150 Woutijn J. Baars Department of Aerospace Engineering and Engineering Mechanics The University of Texas at Austin http://www.ae.utexas.edu/ The high-intensity noise radiated by an unheated, fully expanded, Mach 3 jet is investigated experimentally. The shock-free supersonic jet encompasses Mach wave radiation that is the most prominent component of…
Friday, March 2, 2012 4:00 p.m. ETC 4.150 Prof. Stanislav Y. Emelianov Associate Chair for Research Department of Biomedical Engineering The University of Texas at Austin http://www.bme.utexas.edu/ A quantitative morphological, functional and molecular imaging technique capable of visualizing biochemical, pharmacological and other processes in vivo and repetitively during various stages of tumor progression and cancer…
Friday, February 17, 2012 4:00 p.m. ETC 4.150 Dr. Adam M. Metzler Applied Research Laboratories The University of Texas at Austin http://www.arlut.utexas.edu/ Parabolic equation (PE) techniques are very efficient and can provide accurate solutions for range-dependent wave propagation problems. These techniques are particularly useful for propagation in elastic and poro-elastic media. For elastic media, range dependence is…
Friday, February 10, 2012 4:00 p.m. ETC 4.150 Alex Mayer The University of Music and Performing Arts Vienna, Austria http://www.bias.at/ “Dead spots” of an electric bass guitar correspond to notes which decay much faster than average. Previous analysis and investigation of this phenomenon concluded that neck resonances are solely responsible for causing the accelerated decay.…
Friday, February 3, 2012 4:00 p.m. ETC 4.150 Dr. Kevin M. Lee and Dr. Mark S. Wochner Applied Research Laboratory The University of Texas Austin, Texas www.arlut.utexas.edu Collections of bubbles cause significant dispersion and attenuation of underwater sound near the individual bubbles’ resonance frequencies and can be used to abate low-frequency anthropogenic underwater noise. Such effects…
Friday, January 27, 2012 4:00 p.m. ETC 4.150 Steven D. Beck BAE Systems Austin, Texas http://www.baesystems.com Due to the proliferation of audio recording devices in the military, law enforcement, and the civilian community, there has been an increase in the number of recorded gunshot sounds submitted for forensic analysis. A gunshot sound is composed of…
9:00 am Friday, January 20, 2012 Applied Research Laboratory Auditorium (Open to general public) 10000 Burnet Road Shaun Anderson George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology The development of low-frequency sonar systems, using a network of autonomous systems in unmanned vehicles, provides a practical means for bistatic measurements (i.e. when the…
Friday, November 18, 2011 4:00 p.m. in ETC 4.150 Chris E. Peterson, Tony Nava, and Ken Schaff Dell Enterprise Acoustical, Structural Vibration, and Thermal Engineering Dell, Inc. Round Rock, Texas www.dell.com Sources of noise and vibration in server and storage products include fans, hard disk drives, and electrical components. In the seminar, members of the…
Friday, November 11, 2011 4:00 p.m. in ETC 4.150 Dr. F. Michael Pestorius Independent Research and Development Coordinator Applied Research Laboratories The University of Texas at Austin Modern submarines use sonar almost exclusively for ship navigation, obstacle avoidance, contact detection and warfare missions. Rudimentary sonars were first developed in World War I and they reached…
Friday, October 28, 2011 4:00 p.m. in ETC 4.150 Dr. Manuel Trevino Center for Transportation Research The University of Texas at Austin http://www.utexas.edu/research/ctr/research/bios/trevino.html Traffic noise has become an important concern for many citizens in urban, suburban and even rural areas, as well as for authorities. As public awareness about traffic noise increases, transportation agencies search…
Friday, October 21, 2011 4:00 p.m. in ETC 4.150 Kurt Veggeberg Business Development Manager, Sound and Vibration National Instruments Austin, Texas http://www.ni.com/soundandvibration Military jet aircraft expose both ground maintenance personnel and the community to high levels of noise. A large-scale microphone array for portable near-field acoustic holography (NAH) and data acquisition system was created for…