Active control of multi-dimensional random sound in ducts
By: R.J. Silcox, S.J. Elliott.
Contributors: Elliott, S. J.; Langley Research Center.
Series: NASA technical memorandum -- 102653.
Publisher: National Aeronautics and Space Administration, Langley Research Center
Published: 1990
Place of publication: Hampton, Va
Language: eng
Format: Microform
Subjects: Airplanes -- Air ducts -- Noise -- Prevention.; Active control.; Controllers.; Ducts.; Noise propagation.; Plane waves.; Random noise.; Waveguides.
Notes: Cover title.

Shipping list no.: 90-0860-M.

"May 1990."

Includes bibliographical references (p. 9-[10]).

Also available via Internet from the NASA Technical Report Server web site. Address as of 3/9/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900012287%5F1990012287.pdf; current access available via PURL.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration, 1990]. 1 microfiche : negative ; 11 x 15 cm.

505-63-51-09.