LEADER 02040nam  2200481I  450 
001 9910704277803321
005 20160202154117.0
035   $a(CKB)5470000002438894
035   $a(OCoLC)936383922
035   $a(EXLCZ)995470000002438894
100   $a20160202j201509    ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aApplication of an aligned and unaligned signal processing technique to investigate tones and broadband noise in fan and contra-rotating open rotor acoustic spectra /$fJeffrey Hilton Miles and Lennart S. Hultgren
210  1$aCleveland, Ohio :$cNational Aeronautics and Space Administration, Glenn Research Center,$dSeptember 2015.
215   $a1 online resource (13 pages) $ccolor illustrations
225 1 $aNASA/TM ;$v2015-218865
300   $aTitle from title screen (viewed on Feb. 2, 2016).
300   $a"September 2015."
300   $a"Prepared for the 22nd International Symposium on Air Breathing Engines (ISABE 2015) sponsored by the International Society for Air Breathing Engines, Phoenix, Arizona, October 25-30, 2015."
320   $aIncludes bibliographical references (pages 6-7).
606   $aAcoustic properties$2nasat
606   $aRotating shafts$2nasat
606   $aContrarotating propellers$2nasat
606   $aNoise spectra$2nasat
606   $aAeroacoustics$2nasat
615  7$aAcoustic properties.
615  7$aRotating shafts.
615  7$aContrarotating propellers.
615  7$aNoise spectra.
615  7$aAeroacoustics.
700   $aMiles$b J. H.$01386529
702   $aHultgren$b Lennart S$g(Lennart Sven),
712 02$aNASA Glenn Research Center,
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910704277803321
996   $aApplication of an aligned and unaligned signal processing technique to investigate tones and broadband noise in fan and contra-rotating open rotor acoustic spectra$93435513
997   $aUNINA