sound absorption

Absorber is used broadly in public transport buildings, cinemas and theaters, as an important sort of sound absorption.

Therefore, glass cotton can be thought of as a porous materials, has a good thermal insulation, sound absorption performance.

The sound absorption characteristics of a double layer structure with metal-rubber (MR) material were investigated.

This is the ability of the material to absorb sound and is called its sound absorption coefficient .

The sound absorption coefficient would be increased with the increasing of the washing time.

The aim was to research the sound absorption properties of graded polyurethanes at different incident angles.

ACOUSTICS. TESTING OF ARCHITECTURAL ACOUSTICS. DETERMINATION OF SOUND ABSORPTION COEFFICIENT AND IMPEDANCE IN A TUBE.

To a certain extent, the finer fiber fineness, the better sound absorption, and doesn't effect obviously on the sound insulation.

The flow resistivity is the main parameter to determine the sound absorption performance of MR material.

As the aperture of the micro-perforations is rather small, the sound absorption performance is excellent.

Horniness beaverboard sound absorption, waterproof properties is good, hard usage, construction is convenient.

The results validate that the material with cavity at its back can effectively increase the sound absorption properties of materials.

"Sunrise" brand mineral wool slabs have excellent fire protection, thermal insulation and sound absorption properties.

The content of architectural acoustics usually includes noise control and hall timbre, and sound absorption is its main technical measure.

Covers the disposition in the trailing wheel to have the sound absorption effect material, reduces the grit , Shui Pojian the noise.

The sound absorption performance of single layer metal rubber (MR) material was theoretically investigated.

Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2 : transfer-function method.

Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1 : method using standing wave ratio.

Building rock wool board has good fire prevention, insulation and sound absorption performance.

In acoustic property, sound absorption characteristic is positively related to larger porosity and larger aggregate grading.

Most ceiling tile has high sound absorption coefficients to reduce echoes in a room.

The part of gradient coil near shell forms chamfer angle to lay more sound absorption material.

Adding the airspace can improve the sound absorption properties under low frequency.

To increase the thickness of material could improve the sound absorption property.

Centrifugal glass cotton to hf have better sound absorption performance.

In the light stamen and pistil heart the flow butterfly sucks the sound absorption.

The indoor sound-absorption decoration for theaters, subways and etc.

Adding a back lining at one side of the porous metal material is an effective and workable way to improve its sound absorption properties.

Besides, evidently the effect of gradation is distinct, and texture depth also has effect on sound absorption.

In the present study, electrospun fibers are applied to sound absorption.

The property of sound absorption in turbid water has been investigated in the paper.

The effect of fabric weave on the sound absorption coefficient was evident.

Sound absorption performance is superior to the sound absorption performance of several kinds of timber .

In addition, the sound absorption coefficient of the materials becomes smaller because of the lower thickness.

Foam glass has many fine properties as follows: fire proof, water proof, heat keeping and insulation, sound absorption and so on.

Sound absorption and noise reduction; it can effectively prevent sound from spreading.

In the noise control, it can be used in sound absorption and noise reduction in the room.

The emphasis is to study the sound absorption properties of gradient polyurethanes at different temperatures and pressures.

Analyzing Frequency Characteristic of a Perforation Plank Sound Absorption Construction

Development of the Sound Absorption Material Used for Noise Reduction in Highway Tunnel

Code of practice for use of sprayed lightweight mineral coatings used for thermal insulation and sound absorption in buildings

Influence of the Structural Form of Sound Absorbing Material on the Behavior of Sound Absorption

Second, construction heat preservation material, sound absorption material, building independent suspension system;

Fine sound absorption noise reduction performance. model application: Aircraft high temperature heat insulation heat preservation;

Road traffic noise reducing devices - Test method for determining the acoustic performance - Intrinsic characteristics of sound absorption

The utility model provides a sound absorption assembled plate of a wide frequency band;

for the metal foam, the emergence of resonance is more conducive to the dissipation of energy and the improvement of the sound absorption;

The Strength Evaluation and the Mechanism of High-frequency Echo Highlight for Target with a Sound Absorption Layer

Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Transfer-function method

building acoustics - estimation of acoustic performance of buildings from the performance of elements - sound absorption in enclosed spaces

Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Method using standing wave ratio

Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Method using standing wave ratio

Acoustics - Measurement of sound absorption in a reverberation room; Amendment 1: Test specimen mountings for sound absorption tests

Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

it has good sound absorption and insulation, and can balance the overall space sound environment;

Computation and Analysis of Sound Absorption Performance of Rubber Structures under Variable Hydraulic Pressure

Electrodeposition for Manufacturing the Foamed Nickel Sound Absorption Material

Analysis of the Average Absorption Characteristics of the Microperforated Sound Absorption Structures

Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

Method for measurement of sound absorption coefficients in a reverberation room

Studies on the Relationships Among Sound Absorption Coefficient, Temperature and Frequency on Polymer

Studies on the Sound Absorption Coefficient-temperature-frequency Relationship on Polymer

Acoustics - Measurement of sound absorption properties of road surfaces in situ - Extended surface method

acoustics - measurement of sound absorption in a reverberation room

Research on Sound Absorption Characteristics of the New Acoustic Structure

Method for measurement of sound absorption coefficients in a reverb ration room

An aero-acoustical study on compressor constrained by hoops with damping layers and sound absorption guiding cone

Metal Rubber's Sound Absorption and Noise Reduction Performance Analysis and Experimental Study

Optimization of Sound Absorption Properties of Graded Polyurethanes

Sound Absorption Properties of Needle-punched Nonwovens Composed by Polyester Fibers

Overview of new materials and structures for underwater sound absorption

Experimental Research on Sound Absorption Characteristics of Metal Fibre

Applications of finished sound absorption materials with high efficiency

Error Analysis of Stand Wave Tube Equipment on Measuring Metal Rubber Sound Absorption Performance

Study on the Underwater Sound Absorption Properties of Gradient Polyurethanes

Design on orbit traffic sound control structure and development on sound absorption material

A Study of the Sound Absorption Property of Grain

Standard Practices for Mounting Test Specimens During Sound Absorption Tests

Experimental Studies on Sound Absorption of Underwater Microperforated-panel Absorbers

Development of a Low Frequency Sound-absorption Taper for Anechoic Pool

Research On Low-Frequency Sound Absorption Ability of Particle-Loaded Composites

Sound Absorption Characteristics of Foamed Aluminum

Studies on Sound Absorption Coefficient on Polymer Damping Materials

Experimental research of sound absorption by water fog in duct sound elimination system

Transfer Function Method of Sound Absorption Coefficient in Impedance Tubes

Acoustics - Sound absorbers for use in buildings - Rating of sound absorption

A study on sound absorption properties of large - cavity perforated structure

Acoustic Property Analysis of Sound Absorption Wool Materials

Analysis on the Error of Calculating the Sound Absorption Coefficient Using the Reverberation Chamber Method

The sound absorption property of light straw-based board

Acoustics - Measurement of sound absorption properties of road surfaces in situ - Part 1: Extended surface method

Sound Absorption Mechanism in Gradient Polymer Solution

Development of Sound Absorption Material of Polypropylene Fibre Enhanced Cement-matrix

The gradation of sound absorption property for absorbent products

Design and Application of Sound Absorption Material in Gymnasium

Discussion for Sound Absorption Materials in EASE Modeling

Comfortable to ones feet and which goes with the perfect sound absorption;

The sound-absorption ornament cellular glass plates;

Study on cement-based wood composite sound absorption material

Sound Absorption Properties of Aluminium Foam

Research on sound absorption property of Al-Si closed-cell aluminum foam

Sound absorption property of wood for five eucalypt species

A study on sound absorption properties in various types grain

Advances in Sound Absorption Polymers

A Study on the Sound Absorption Property of OSB Wallboard

Broadband resonance sound absorption and it's principle for low frequency

Noise reduction by sound absorption

Study on the Sound Absorption Property of OSB