Rozprawa habilitacyjna-- Warsaw. / Bibliography: p. 83-[84].

Thesis (M.S. in Applied Physics)--Naval Postgraduate School, June 2004. / Thesis advisor(s): Thomas J. Hofler, Bruce Denardo. Includes bibliographical references (p. 57). Also available online.

Thesis (M.S. in Bio. E.)--School of Biomedical Engineering, Georgia Institute of Technology, 2004. Directed by Ajit P. Yoganathan. / Includes bibliographical references (leaves 175-180).

Thesis (M.S. in Engineering Acoustics and M.S. in Applied Science (Antisubmarine Warfare))--Naval Postgraduate School, September 1990. / Thesis Advisor(s): Baker, Steven R. Second Reader: Wilson, Oscar B. "September 1990." Description based on title screen as viewed on December 17, 2009. DTIC Identifier(s): Acoustic resonators, acoustic transducers, coupled network analysis, theses. Author(s) subject terms: Low frequency active, multiple scatter, sympathetic resonance, quasiresonance, coupled network analysis. Includes bibliographical references (p. 54). Also available in print.

Thesis (M.S. in Engineering Acoustics)--Naval Postgraduate School, December 2003. / Thesis advisor(s): Thomas J. Hofler, Andres Larraza. Includes bibliographical references (p. 45). Also available online.

Piezoelectric transducers with cylindrical geometry are often designed to operate in a radial “breathing” mode. In order to tune their performance in a cost effective way, cylinders can be constructed of alternating active (piezoelectric) and inactive (non-piezoelectric) staves. Existing lumped parameter models for such a ring are based on effective piezoelectric properties of the composite ring which reduce the system to a single degree of freedom corresponding to the breathing motion. Unfortunately, if the length of the staves is a sufficiently large percentage of the circumference, the transducer may demonstrate a detrimental higher frequency resonance within the desired bandwidth of operation even when all staves are uniformly excited by an electrical field. This parasitic resonance results from bending motion of the staves associated with stiffness and mass discontinuities of the constituent material properties and can significantly decrease the radiated acoustic pressure and generate distortion of the radiated acoustic waveform. This work presents a multiple-degree-of-freedom lumped parameter model that captures both the breathing and bending resonances of the transducer and provides a more accurate prediction of its effective coupling coefficient. Results are compared with a one-degree-of-freedom model, finite element models, and experimental data. Modifications to account for internal volumes, nonlinearities, and other effects are also presented and discussed. / text

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This research deals with acoustoelectric interactions in CdS. The first part is devoted to an experimental study of acoustoelectric effects occurring under high field conditions. An acoustic amplifier in which trapping effects are important is described, the decay time for current saturation is measured, and extreme non-uniformities in field distributions are measured and discussed. [...]

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