01365cam a2200313Ii 4500011449786MiAaHDL20141009010000.0m d cr bn ---auaua780426s1976 dcua b f000 0 eng dsdr-uiuc6394574(OCoLC)382886422161GPOGPOABCOCLCQUIUUTL521.A3525 no. 8348NAS 1.14:D-8348Lester, Harold C.Optimal one-section and two-section circular sound-absorbing duct liners for plane-wave and monopole sources without flow /Harold C. Lester and Joe W. Posey.Washington :National Aeronautics and Space Administration ;Springfield, Va. :For sale by the National Technical Information Service,1976.51 p. :ill. ;27 cm.NASA technical note ;NASA TN D-8348Issued Dec. 1976.Includes bibliographical references.Mode of access: Internet.TurbomachinesAerodynamicsMathematical models.Air ductsAerodynamicsMathematical models.AirplanesTurbojet enginesAir intakesNoiseMathematical models.Posey, Joe W.,joint author.United States.National Aeronautics and Space Administration.01144978620101104104036.020141009010000.020141112165512.02025-01-02T19:13:42Z2025-01-02T18:30:02ZSDR-UIUCUNKNOWNloader.pl-003-020BKsdr-uiuc6394574uiugSDRUIUCuiug.30112106913996UIU6394574UIUUIUC20250102googleuiug.301121069139961976pdbibUS fed doc--NTIS: pubdate < 2020