Macro- and micro-structure designs for porous sound absorbers

response articles: micro and macro analysis

the present study reports an analysis of response articles in four different disciplines in the social sciences, i.e., linguistics, english for specific purposes (esp), accounting, and psychology. the study has three phases: micro analysis, macro analysis, and e-mail interview. the results of the micro analysis indicate that a three-level linguistic pattern is used by the writers in order to cr...

Vibroacoustics of thin micro-perforated sound absorbers

Investigation on acoustic behavior of acoustic porous absorbers to ‎absorb sound energy and transmission loss index

In this study, the acoustic properties of porous absorbents with different porosity levels have been evaluated using different mathematical models. These models use one or more parameters of materials for calculating acoustic characteristics. In all of these models, materials are considered as equivalent fluid and reactionary characteristics have not been taken into account.

Implications of the Imperfect Deposit Market Structure for Micro and Macro Discretionary Prudential Policies

The aim of this study is to theoretically investigate the role of the bank deposit market structure in how effective micro and macro prudential policies in determining the regulatory capital of banks in combination with monetary policy. To achieve this, a partial equilibrium analytical framework has been developed that includes rational economic entities and the possibility of contagion risk in...

Sound attenuation using duct silencers with micro-perforated panel absorbers

Micro-perforated panel (MPP) can be used as non-fibrous acoustic absorber which can provide broadband sound absorption performance. In this study, a sub-structuring methodology based on the Patch Transfer Function (PTF) approach to deal with duct silencers with MPP absorbers and internal partitions is proposed, and the sound attenuation performance of such silencers is investigated. Reactive si...