Active filters
Displaying 22 of 22 results
Parametric and experimental analysis using a power flow approach [microform] / J.M. Cuschieri.
Microform
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1990]
1990
0 resources
Computation of helicopter rotor acoustics in forward flight [microform] / Roger Strawn, Rupak Biswas.
Microform
[Moffett Field, Calif.] : Research Institute for Advanced Computer Science, NASA Ames Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
1994
0 resources
Reciprocity-based experimental determination of dynamic forces and moments [microform] : a feasibility study / István L. Vér and Michael S. Howe.
Microform
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
1994
0 resources
En route noise levels from propfan test assessment airplane [microform] / Donald P. Garber and William L. Willshire, Jr.
Microform
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
1994
0 resources
User's manual for the Langley boundary layer noise propagation program (MRS-BLP) [microform] / Peter L. Spence.
Microform
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1991]
1991
0 resources
Methods for designing treatments to reduce interior noise of predominant sources and paths in a single engine light aircraft [microform] / by R.E. Hayden ... [et al.].
Microform
Hampton, Va : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1985]
1985
0 resources
Helicopter tail rotor noise analyses [microform] : final technical report ; period, June 1, 1985 - January 31, 1986 / Albert R. George and S.-T. Chou.
Microform
Ithaca, New York : Sibley School of Mechanical and Aerospace Engineering, Cornell University ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1986]
1986
0 resources
Vibration and structureborne noise in space station [microform] : progress report for NASA grant NAG-1-541 for the period January 1, 1986 - June 30, 1986 / prepared by Rimas Vaicaitis, principal investigator.
Microform
[Washington, D.C.? : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, 1986?]
1986
0 resources
Study of one- and two-dimensional filtering and deconvolution algorithms for a streaming array computer [microform] : final report : [appendices] / George E. Ioup, principal investigator.
Microform
[Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1985?]
1985
0 resources
A study of methods to predict and measure the transmission of sound through the walls of light aircraft [microform] : semi-annual status report, reporting period 10/1/85 - 5/15/86 / submitted by R.J. Bernhard, principal investigator ... [et al.].
Microform
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1986]
1986
0 resources
New computational methods for the prediction and analysis of helicopter noise [microform] / Roger C. Strawn, Leonid Oliker, Rupak Biswas.
Microform
[Moffett Field, Calif.] : Research Institute for Advanced Computer Science, NASA Ames Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1996]
1996
0 resources
Analytical study of acoustic response of a semireverberant enclosure with application to active noise control [microform] / Tony L. Parrott, David B. Schein, Doreen Gridley.
Microform
[Washington, D.C.] : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va. : For sale by the National Technical Information Service, 1985.
1985
0 resources
Turbofan noise propagation and radiation at high frequencies [microform] / Walter Eversman.
Microform
[Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; Hanover, MD : Available from NASA Center for Aerospace Information ; Springfield, VA : National Technical Information Service [distributor, 2003]
2003
1 resource
Available online
http://purl.access.gpo.gov/GPO/LPS55130Consideration of some factors affecting low-frequency fuselage noise transmission for propeller aircraft [microform] / John S. Mixson and Louis A. Roussos.
Microform
[Washington, D.C.] : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va. : For sale by the National Technical Information Service, 1986.
1986
0 resources
Active control of multi-dimensional random sound in ducts [microform] / R.J. Silcox, S.J. Elliott.
Microform
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center, [1990]
1990
1 resource
Available online
http://purl.access.gpo.gov/GPO/LPS67515Free-field propagation of high intensity noise [microform] / by Joseph P. Welz and Oliver H. McDaniel.
Microform
[State College, Penn.] : Noise Control Laboratory and Applied Research Laboratory, Pennsylvania State University, [1990]
1990
1 resource
Available online
http://purl.access.gpo.gov/GPO/LPS69261Vibrations and structureborne noise in space station [microform] : progress report for the period July 1, 85 - Dec. 31, 85 / prepared by: Rimas Vaicaitis.
Microform
[Washington, DC? : National Aeronautics and Space Administration, 1986]
1986
0 resources
Cross spectra between pressure and temperature in a constant-area duct downstream of a hydrogen-fueled combustor [microform] / J. H Miles, C.A. Wasserbauer, and E. J. Krejsa.
Microform
[Washington, D.C. : National Aeronautics and Space Administration, 1983]
1983
0 resources
Field-incidence transmission of treated orthotropic and laminated composite panels [microform] / Leslie R. Koval.
Microform
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center, [1983]
1983
0 resources
Prediction of far field noise from wind energy farms / Kevin P. Shepherd and Harvey H. Hubbard.
Microform
Hampton, Va. : Bionetics Corporation : National Aeronautics and Space Administration, Langley Research Center, [1986]
1986
0 resources
Prediction of far field noise from wind energy farms / Kevin P. Shepherd and Harvey H. Hubbard.
Web Resource
Hampton, Virginia : Bionetics Corporation : National Aeronautics and Space Administration, Langley Research Center, 1986.
1986
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo34892Vibration propagation of gear dynamics in a gear-bearing-housing system using mathematical modeling and finite element analysis / Robert G. Parker [and three others].
Web Resource
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2012.
2012
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo32520