Noise reduction
Resource Information
The concept Noise reduction represents the subject, aboutness, idea or notion of resources found in University of Missouri-St. Louis Libraries.
The Resource
Noise reduction
Resource Information
The concept Noise reduction represents the subject, aboutness, idea or notion of resources found in University of Missouri-St. Louis Libraries.
- Label
- Noise reduction
- Source
- nasat
100+ Items that share the Concept Noise reduction
Context
Context of Noise reductionSubject of
- A PIV study of slotted air injection for jet noise reduction
- A comparison of signal enhancement methods for extracting tonal acoustic signals
- A comprehensive approach to management of workplace and environmental noise at NASA Lewis Research Center
- A fan concept to meet the 2017 noise goals
- A fan design that meets the NASA aeronautics noise goals
- A methodology for designing aircraft to low sonic boom constraints
- A mode propagation database suitable for code validation utilizing the NASA Glenn advanced noise control fan and artificial sources
- A new method for reduction of photomultiplier signal-induced noise
- A new method for reduction of photomultiplier signal-induced noise
- A new theory for rapid calculation of the ground pattern of the incident sound intensity produced by a maneuvering jet airplane
- A simulator study for the development and evaluation of operating procedures on a supersonic cruise research transport to minimize airport-community noise
- A study of shape memory polymer based slat-cove filler
- AST critical propulsion and noise reduction technologies for future commercial subsonic engines : separate-flow exhaust system noise reduction concept evaluation
- Acoustic and aerothermal performance test of the axisymmetric coannular ejector nozzle
- Acoustic and laser doppler anemometer results for confluent and 12-lobed E3 mixer exhaust systems for subsonic jet noise reduction
- Acoustic and laser doppler anemometer results for confluent, 22-lobed, and unique-lobed mixer exhaust systems for subsonic jet noise reduction
- Acoustic performance of novel fan noise reduction technologies for a high bypass model turbofan at simulated flight conditions
- Acoustic shielding for a model scale counter-rotation open rotor
- Acoustic test characterization of melamine foam for usage in NASA's payload fairing acoustic attenuation systems
- Acoustically tailored composite rotorcraft fuselage panels
- Active control of fan noise by vane actuators
- Active control of fan noise--feasibility study
- Active control of wind tunnel noise : a technical report ...
- Active noise control of low speed fan rotor-stator modes
- Active noise control of low speed fan rotor-stator modes
- Actuator feasibility study for active control of ducted axial fan noise : under contract NAS3-26618
- Adaptive back sheet material for acoustics liner applications--ARMD Seedling Fund phase I final report
- Advanced Rotorcraft Transmission Program
- Advanced noise control fan aerodynamic performance
- Advanced technology subsonic transport study : N+3 technologies and design concepts
- Advanced turbofan duct liner concepts
- Advanced water vapor lidar detection system : final report
- Aerodynamic design and computational analysis of a spacecraft cabin ventilation fan
- Amplitude noise reduction of ion lasers with optical feedback
- An analytical assessment of NASA's N+1 Subsonic Fixed Wing Project noise goal
- Analysis of modified SMI method for adaptive array weight control
- Analytical investigation of synchrophasing as a means of reducing aircraft interior noise
- Application of deterministic and probabilistic system design methods and enhancements of conceptual design tools for ERA project
- Benefits of swept and leaned stators for fan noise reduction
- Benefits of swept and leaned stators for fan noise reduction
- Blade-mounted flap control for BVI noise reduction proof-of-concept test
- Broadband fan noise generated by small scale turbulence : final report on NASA grant number NAG 1-1202
- Broadband noise control using predictive techniques
- Broadband noise control using predictive techniques
- Characterization of three-stream jet flow fields
- Community noise impact of advanced aircraft designs
- Comparison of predicted low speed fan rotor/stator interaction modes to measured
- Comparison of predicted low speed fan rotor/stator interaction modes to measured
- Comparison of speech intelligibility in cockpit noise using SPH-4 flight helmet with and without active noise reduction
- Computational aerodynamic simulations of a spacecraft cabin ventilation fan design
- Computational investigations of noise suppression in subsonic round jets : final report for NASA grant NAG1-1802
- Computational noise study of a supersonic short conical plug-nozzle jet
- Consideration of some factors affecting low-frequency fuselage noise transmission for propeller aircraft
- Data quality analysis at the National Transonic Facility
- Data quality assurance for supersonic jet noise measurements
- Definition of 1992 technology aircraft noise levels and the methodology for assessing airplane noise impact of component noise reduction concepts
- Design of a low speed fan stage for noise suppression
- Design of quiet rotorcraft approach trajectories
- Developing an empirical model for jet-surface interaction noise
- Development and demonstration of active noise control concepts
- Development of multiobjective optimization techniques for sonic boom minimization : final report on NASA Ames grant no. NCC2-5064, performance period--5/16/94-9/15/96
- Development of rotorcraft interior noise control concepts : phase III, development of noise control concepts
- Distribution system simulator
- Dual rotating rake measurements of higher-order duct modes : validation using experimental and numerical data
- Effect of two advanced noise reduction technologies on the aerodynamic performance of an ultra high bypass ratio fan
- Ejector noise suppression with auxiliary jet injection : under contract NAS3-27246
- Emerging community noise reduction approaches
- Empennage noise shielding benefits for an open rotor transport
- Engine conceptual design studies for a hybrid wing body aircraft
- Evaluating the Acoustic effect of over-the-rotor Foam-Metal Liner installed on a low speed fan using Virtual Rotating Microphone imaging
- Experimental measurement of structural power flow on an aircraft fuselage : progress report no. 6, Jan.-June 1989
- Fan noise control using Herschel-Quincke resonators
- Fan noise reduction : an overview
- Fission surface power technology development status
- Fuselage design for a specified Mach-sliced area distribution
- Helical face gear development under the Enhanced Rotorcraft Drive System Program
- High resolution imaging of the Sun with CORONAS-1 : NASA grant NAGW-4675 : final report : for the period 1 June 1995 through 30 September 1997
- Hybrid active/passive jet engine noise suppression system
- Improved NASA-ANOPP noise prediction computer code for advanced subsonic propulsion systems
- Improved NASA-ANOPP noise prediction computer code for advanced subsonic propulsion systems
- In-flight acoustic measurements on a light twin-engined turboprop airplane
- Including finite surface span effects in empirical jet-surface interaction noise models
- Influence of vane sweep on rotor-stator interaction noise
- Infrared speckle interferometry with 2-D arrays
- Inlet acoustic data from a high bypass ratio turbofan rotor in an internal flow component test facility
- Jet noise reduction by microjets : a parametric study
- Jet noise reduction potential from emerging variable cycle technologies
- Jet shielding of jet noise
- LES of a jet excited by the Localized Arc Filament Plasma Actuators
- Large Engine Technology (LET) task XXXVII low-bypass ratio mixed turbofan engine subsonic jet noise reduction program test report
- Lobed mixer design for noise suppression : acoustic and aerodynamic test data analysis
- Low speed, 2-D rotor/stator active noise control at the source demonstration : under contract NAS3-26618
- Low-speed wind tunnel investigation of the static stability and control characteristics of an advanced turboprop configuration with the propellers placed over the tail
- Modeling sound propagation through non-axisymmetric jets
- NASA Glenn's contributions to aircraft engine noise research
- NASA/ASEE Summer Faculty Fellowship Program : John F. Kennedy Space Center, University of Central Florida : 1996 research reports : NASA grant NGT10-52605, contractor report no. CR-202756
- Nacelle integration to reduce the sonic boom of aircraft designed to cruise at supersonic speeds
- Noise constraints effecting optimal propeller designs
- Noise from supersonic coaxial jets, Part 2, Normal velocity profile
- Noise reduction for model counterrotation propeller at cruise by reducing aft-propeller diameter
- Noise reduction with lobed mixers : nozzle-length and free-jet speed effects
- Nonlinear stability of supersonic jets
- Nozzle thrust optimization while reducing jet noise
- Numerical investigation of a shielded chevron nozzle
- Optimizing an actuator array for the control of multi-frequency noise in aircraft interiors
- Performance of optimized actuator and sensor arrays in an active noise control system
- Phase averaged measurements of the coherent structure of a Mach number 0.6 jet
- Piloted simulation study of the effect of high-lift aerodynamics on the takeoff noise of a representative high-speed civil transport
- Predicted aerodynamic characteristics of a NACA 0015 airfoil having a 25% integral-type trailing edge flap
- Prediction of the aero-acoustic performance of open rotors
- Quadratic optimization in the problems of active control of sound
- Quelling cabin noise in turboprop aircraft via active control
- Quiet high-speed fan
- Quiet, efficient fans for spaceflight : an overview of NASA's technology development plan
- Recent developments in U.S. engine noise reduction research
- Recursive deadbeat controller design
- Reduced perceived noise low tip speed fans as result of abandoning cutoff stator vane numbers
- Reduction of blade-vortex interaction noise using higher harmonic pitch control
- Review and analysis of the DNW/model 360 rotor acoustic data base
- Rotating rake turbofan duct mode measurement system
- Rotorcraft transmission noise path model, including distributed fluid film bearing impedance modeling
- Silent aircraft initiative concept risk assessment
- Simulating nonlinear stator noise for active control
- Some acoustic results from the Pratt and Whitney Advanced Ducted Propulsor : Fan 1
- Start up research effort in fluid mechanics : research project no. 1 : advanced methods for acoustic and thrust benefits for aircraft engine nozzle : performance report-97; performance period: 06/01/96-02/28/97; NASA HQ grant, NAG-1 1835
- Study of noise transmission through double wall aircraft windows
- Study of the TRAC airfoil table computational system
- The alternative low noise fan
- The alternative low noise fan
- The aviation system analysis capability noise impact model
- The flight track noise impact model
- The influence of lamination angles on the interior noise levels of an aircraft
- The influence of lamination angles on the interior noise levels of an aircraft
- The reduction of ducted fan engine noise via a boundary integral equation method : final report for the period April 1996 through April 1997, under grant number NCC-3-469
- Titanium aluminide applications in the high speed civil transport
- Turbofan aft duct suppressor study
- Turbofan aft duct suppressor study : contractor's data report of mode probe signal data
- Validation of aircraft noise models at lower levels of exposure
- Validation of the predicted circumferential and radial mode sound power levels in the inlet and exhaust ducts of a fan ingesting distorted inflow
- Wind turbine acoustics research : bibliography with selected annotation
- [Actuator placement for active sound and vibration control] : [final report]
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<div class="citation" vocab="http://schema.org/"><i class="fa fa-external-link-square fa-fw"></i> Data from <span resource="http://link.umsl.edu/resource/xWjzclAkQs0/" typeof="CategoryCode http://bibfra.me/vocab/lite/Concept"><span property="name http://bibfra.me/vocab/lite/label"><a href="http://link.umsl.edu/resource/xWjzclAkQs0/">Noise reduction</a></span> - <span property="potentialAction" typeOf="OrganizeAction"><span property="agent" typeof="LibrarySystem http://library.link/vocab/LibrarySystem" resource="http://link.umsl.edu/"><span property="name http://bibfra.me/vocab/lite/label"><a property="url" href="http://link.umsl.edu/">University of Missouri-St. Louis Libraries</a></span></span></span></span></div>
