Washington Post, May 13, 1990, p. C 3. |
Abstract of F. D. Shields et al., "Smart Acoustically Active Surfaces", J.cous. Soc. Am. Supp. 1, vol. 85 (Spring 1989) p. S62. |
Abstract of R. Howarth et al., "Large Area Sensors for Active Acoustic Control Systems," J. Acous. Soc. Am., vol. 85, supp 1 (Spring '89). |
T. R. Howarth et al., "Coating for an Underwater Active Acoustic Attenuation Control System," Colloque de Physique, vol. 51, p. C2-801 (Feb. 1990). |
T. R. Howarth et al., "Sensor Design for an Active Underwater Acoustic Attenuation Control System Coating," vol. 4, p. 83 (Penn. State University, 1989). (J. of Wave Material Interaction.). |
X.-Q. Bao et al., "Model of a Bilaminar Actuator for Active Acoustic Control systems," J. Acous. Soc. Am., vol. 87, p. 1350 (Mar., 1990). |
V. V. Varadan et al., "Composite Smart Skins for Airborne Structures," SPIE vol. 1307 Electro-Optical Materials for Switches, Coatings, Sensor Optics and Detectors, p. 232 (1990). |
P. S. Dubbleday et al., "Algorithm-Based Method for Suppressing the Transmission of Sound in a Water-Filled Waveguide," J. of Intell. Mater. Syst. and Structures, vol. 2, p. 129 (Apr., 1991). |
T. R. Howarth et al., "Piezocomposite Coating for Active Underwater Sound Reduction," J. Acoust. Soc. Am., vol. 91, p. 823 (Feb. 1992). |
L. D. Lafleur et al., "Acoustically Active Surfaces Using Piezorubber," J. Acoust. Soc. Am., vol. 90, p. 1230 (Sep. 1991). |
Abstract of paper, T. R. Howarth et al., "Piezocomposite Actuator Designs for an Active Underwater Acoustic Control System Coating," Abstract book fo 119th Meeting: Acoustical Soc. Am., p. S 17, May 1991. |
Abstract of paper, V. V. Varadan et al., "Active Underwater Acoustic Damping Coating," Abstract book, 119th Meeting: Acoustical Soc. Am. (May, 1990), p. S 146. |
Abstract of paper T. R. Howarth et al., "Composite Smart Skin Systems," 120th Meeting: Acoustical Society of America, p. S115, (Nov., 1990). |
Abstract of paper, T. R. Howarth et al, "Digital Time Delay Network for Active Underwater Acoustic Coating," 121st Meeting: Acoustical Society of America, p. 1915 (Apr.-May, 1991). |