Rotating Rake Turbofan Duct Mode Measurement System [PDF]
An experimental measurement system was developed and implemented by the NASA Glenn Research Center in the 1990s to measure turbofan duct acoustic modes. The system is a continuously rotating radial microphone rake that is inserted into the duct.
Sutliff, Daniel L.
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Spartan Daily, May 29, 1947 [PDF]
, 1947 Volume 35, Issue 146https://scholarworks.sjsu.edu/spartandaily/9010/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
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Standardization of computational experiments in unsteady turbulent boundary-layer flow [PDF]
Numerical experiments are proposed as standard cases to be computed by all who plan to analyze unsteady turbulent boundary layer behavior. In this way, differences between the results obtained by various methods can be compared in a completely defined ...
Carr, L. W.
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Advanced Noise Control Fan Aerodynamic Performance [PDF]
The Advanced Noise Control Fan at the NASA Glenn Research Center is used to experimentally analyze fan generated acoustics. In order to determine how a proposed noise reduction concept affects fan performance, flow measurements can be used to compute ...
Bozak, Richard F., Jr.
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Formation of Nanoscale Protrusions on Polymer Films after Atomic Oxygen Exposure: Observations with Positron Annihilation Lifetime Spectroscopy. [PDF]
Langmuir, 2023 Goto A +4 more
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Propulsion Noise Reduction Research in the NASA Advanced Air Transport Technology Project [PDF]
The Aircraft Noise Reduction (ANR) sub-project is focused on the generation, development, and testing of component noise reduction technologies progressing toward the NASA far term noise goals while providing associated near and mid-term benefits.
Fernandez, Hamilton +2 more
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Investigation of thermospheric winds relative to space station orbital altitudes [PDF]
An investigation of thermospheric winds, relative to the space station orbital altitudes, was made in order to provide information that is useful in an environmental disturbance assessment.
Susko, M.
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A general tribo-dynamic model for lubricated clearance joints in spatial multibody systems. [PDF]
Sci RepLiu S, Cui Y, Xing M, Gao L, Zhu F.
europepmc +1 more source
Geography vs. past climate: the drivers of population genetic structure of the Himalayan langur. [PDF]
BMC Ecol Evol, 2022 Arekar K +4 more
europepmc +1 more source
Mechanical characteristics of roll crushing of ore materials based on discrete element method. [PDF]
Sci RepGu R +5 more
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