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1
A Requirements-Driven Optimization Method for Acoustic Liners Using Analytic Derivatives
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Ata de Congresso
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A Requirements-Driven Optimization Method for Acoustic Liners Using Analytic Derivatives

Berton, Jeffrey J. ; Lopes, Leonard V.

Glenn Research Center 2017

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2
Acoustics Technical Working Group and UAM Noise Working Group Proceedings
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Acoustics Technical Working Group and UAM Noise Working Group Proceedings

Cluts, Jordan ; Williams, Chris ; Stephens, David ; Hixon, Ray ; June, Jason ; Nark, Doug ; Kreitzman, Jordan ; Bridges, James ; Vaughn, Aaron B. ; Doebler, William J. ; Ballard, Kathryn M. ; Rathsam, Jonathan ; Henderson, Brenda ; Hultgren, Lennart ; Boyle, Devin ; Revesz, Jacob ; Brandt, Patrick ; Jones, Michael ; Wall, Alan T. ; Giese, Alex ; Gee, Kent L. ; Downing, J. Micah ; James, Michael M. ; Rasband, Reese D. ; Svetgoff, Alexander ; Miller, Chris ; Jantzen, Justin ; Begault, Durand R. ; Christian, Andrew ; Boucher, Matthew ; Begault, Durand ; Rafaelof, Menachem ; Rizzi, Stephen ; Krishnamurthy, Siddhartha ; Oppenheimer, Charles ; Lopes, Leonard V. ; Ingraham, Daniel J. ; Zawodny, Nikolas S. ; Thurman, Christopher ; Schatzman, Natasha ; Weist, Lauren ; Shirazi, Dorsa ; Hunkler, Stefan

Glenn Research Center: Glenn Research Center 2023

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3
Open Rotor Tone Shielding Methods for System Noise Assessments Using Multiple Databases
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Ata de Congresso
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Open Rotor Tone Shielding Methods for System Noise Assessments Using Multiple Databases

Bahr, Christopher J. ; Thomas, Russell H. ; Lopes, Leonard V. ; Burley, Casey L. ; Van Zante, Dale E.

Langley Research Center 2014

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4
System Noise Assessment and the Potential for a Low Noise Hybrid Wing Body Aircraft with Open Rotor Propulsion
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System Noise Assessment and the Potential for a Low Noise Hybrid Wing Body Aircraft with Open Rotor Propulsion

Thomas, Russell H. ; Burley, Casey L. ; Lopes, Leonard V. ; Bahr, Christopher J. ; Gern, Frank H. ; VanZante, Dale E.

Langley Research Center 2014

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5
Noise Scaling and Community Noise Metrics for the Hybrid Wing Body Aircraft
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Noise Scaling and Community Noise Metrics for the Hybrid Wing Body Aircraft

Burley, Casey L. ; Brooks, Thomas F. ; Hutcheson, Florence V. ; Doty, Michael J. ; Lopes, Leonard V. ; Nickol, Craig L. ; Vicroy, Dan D. ; Pope, D. Stuart

Langley Research Center 2014

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6
Spatial Distribution of Volcanic Hotspots and Paterae on Io: Implications for Tidal Heating Models and Magmatic Pathways
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Spatial Distribution of Volcanic Hotspots and Paterae on Io: Implications for Tidal Heating Models and Magmatic Pathways

Hamilton, C. W. ; Beggan, C. D. ; Lopes, R. ; Williams, D. A. ; Radenbaugh, J.

Goddard Space Flight Center 2011

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7
Influence of the Perception Constraint, Observer Position, and Broadband Self-Noise on Low-Fidelity UAM Vehicle Perception-Influenced-Design (PID) Optimization
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Influence of the Perception Constraint, Observer Position, and Broadband Self-Noise on Low-Fidelity UAM Vehicle Perception-Influenced-Design (PID) Optimization

Lopes, Leonard V ; Ingraham, Daniel J

Langley Research Center

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8
Influence of the Perception Constraint, Installation Effects, and Broadband SelfNoise on Low-Fidelity, Multi-point, UAM Vehicle Perception-Influenced-Design(PID) Optimization
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Influence of the Perception Constraint, Installation Effects, and Broadband SelfNoise on Low-Fidelity, Multi-point, UAM Vehicle Perception-Influenced-Design(PID) Optimization

Lopes, Leonard V ; Ingraham, Daniel J

Langley Research Center

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9
Increased Fidelity in Prediction Methods For Landing Gear Noise
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Increased Fidelity in Prediction Methods For Landing Gear Noise

Lopes, Leonard V. ; Brentner, Kenneth S. ; Morris, Philip J. ; Lockard, David P.

Langley Research Center 2006

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10
Io Science Opportunities with JIMO: Ultraviolet and Visible
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Io Science Opportunities with JIMO: Ultraviolet and Visible

Spencer, J. R. ; Lopes, R. ; Smythe, W. M.

Headquarters 2003

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