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    Evaluating an Additive Manufactured Acoustic Metamaterial Using the Advanced Noise Control Fan

    Ross, Eoghan P. / Figueroa-Ibrahim, Kelvin M. / Morris, Scott C. et al. | AIAA | 2024
    Keywords: Absorption Coefficient , Sound Pressure Level

    High-Speed Turbofan Noise Reduction Using Foam-Metal Liner Over-the-Rotor

    Sutliff, Daniel L. / Jones, Michael G. / Hartley, Thomas C. | AIAA | 2013
    Keywords: Overall Sound Pressure Level , Absorption Coefficient