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Engineering
Absorption Coefficient
37%
Absorptivity
37%
Air Cavity
10%
Air Flow
15%
Aircraft
17%
Annular Cavity
15%
Boundary Condition
11%
Boundary Layer
13%
Characteristic Frequency
16%
Complex Frequency
8%
Compressibility
10%
Computational Fluid Dynamics
14%
Connection Point
8%
Cross Section
9%
Damping Effect
13%
Degree of Freedom
16%
Energy Dissipation
10%
Experimental Measurement
9%
Experimental Result
18%
Finite Element Analysis
9%
Flow Resistivity
12%
Flow Velocity
11%
Geometrical Parameter
10%
Good Agreement
10%
Impedance Tube
33%
Lateral Boundary Condition
8%
Linear Regime
12%
Microperforations
17%
Model Prediction
13%
Nodes
13%
Nonlinearity
17%
Numerical Analysis
14%
Numerical Study
14%
Partial Differential Equation
11%
Particle Velocity
10%
Porosity
49%
Propagation Axis
8%
Resonance Frequency
15%
Resonator
18%
Reynolds' Number
11%
Sound Absorption
66%
Sound Absorption Coefficient
19%
Sound Level
15%
Sound Pressure Level
11%
Sound Propagation
8%
Sound Speed
11%
Sound Transmission
9%
Structural Damping
11%
Sum Method
9%
Transfer matrix method
36%
Keyphrases
Absorber
19%
Absorption Coefficient
18%
Absorption Peak
27%
Acoustic Absorption
18%
Acoustic Behavior
8%
Acoustic Materials
9%
Acoustic Metamaterials
29%
Acoustic Properties
19%
Acoustic Tube
8%
Acoustical Properties
14%
Acoustics
33%
Added Damping
11%
Air Cavity
9%
Airflow Resistance
17%
Annular Cavity
8%
Boundary Condition Effect
11%
Broadband Sound Absorption
24%
Dead-end Pores
28%
Excitation Levels
14%
Flow Velocity
11%
High Sound Pressure Level
14%
Impedance Tube
16%
Lateral Cavity
11%
Linear Regime
14%
Low-frequency Absorption
9%
Mass-spring Model
18%
Material Design
9%
Metamaterials
34%
Micro-perforated Panel
12%
Micro-perforated Plate
28%
Mobility Matrix
11%
Nonlinear Regime
11%
Pancake
8%
Parallel Assembly
9%
Particle Velocity
15%
Path Analysis Method
11%
Perforated Materials
12%
Perforated Plate
11%
Perforation
34%
Periodic Array
12%
Periodic Unit Cell
10%
Porosity
8%
Porous Materials
17%
Resonant Metamaterials
8%
Sound Absorption
22%
Transfer Matrix
10%
Transfer Matrix Method
24%
Transfer Path Analysis
11%
Transmission Loss
13%
Viscoacoustic
11%
Physics
Absorption Spectra
7%
Acoustic Black Hole
19%
Acoustic Method
5%
Acoustic Property
27%
Acoustics
100%
Acoustics of Porous Material
5%
Aerospace Engineering
5%
Air Flow
11%
Aircraft Compartment
5%
Charge Flow Device
5%
Compressibility
6%
Computational Fluid Dynamics
8%
Degree of Freedom
6%
Finite Element Analysis
13%
Finite Element Modeling
7%
Flow Velocity
21%
Granular Material
7%
Harmonics
5%
Hearing
5%
Helmholtz Resonator
6%
Interface Structure
11%
Loss Factor
5%
Mach Number
5%
Metamaterial
76%
Noise Control
8%
Nonlinear Acoustics
7%
Nonlinear Effect
5%
Numerical Analysis
11%
Numerical Model
5%
Partial Differential Equation
5%
Porosity
18%
Porous Material
12%
Resonant Frequency
9%
Resonator
19%
Reynolds Number
13%
Rotary Wing Aircraft
5%
Sine Wave
5%
Sound Absorption
21%
Sound Pressure
22%
Sound Propagation
7%
Sound Transmission
60%
Sound Wave
8%
Stacking
5%
Thermal Boundary Layer
9%
Transfer-Matrix Method
20%
Transportation
7%
Viscous Damping
5%
Wave Excitation
7%
