Results 11 to 20 of about 1,666 (211)
The acoustic absorption of textile curtains on the function of the fullness
Materiales de Construcción, 2013 Acoustic absorbing materials are applied to reduce noise levels in a room. They are also used to adjust the reverberation time an acoustic enclosure to use for which it´s designed. There are multi-purpose rooms for conferences, concerts, cinemas, etc. In this case, the acoustic absorbent materials should be changed according to use.
del Rey, Romina +3 more
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Acoustic Absorption of Vertical Gardens
Revista Elektrón, 2019 Los jardines verticales forman parte de una de las tendencias tecnológicas constructivas más modernas, conocidas como “Greenery Systems”. Estas son aplicadas cada vez con más frecuencia en aquellas construcciones donde se priorizan consideraciones energéticas y ecológicas conciliables con el medio ambiente. Algunas de las características relevantes que
Velis, Ariel +2 more
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Research on sound absorption performance and optimal design of acoustic materials containing cavity structure [PDF]
MATEC Web of Conferences, 2021 Based on the finite element method, this paper first discusses the sound absorption characteristics of acoustic materials with a cavity structure backed by air, and then takes the internal cavity of the acoustic material and the acoustic material as the ...
Song Hao, Cui Zixian, Li Jun, An Buchao
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Shock and Vibration, 2021 Viscoelastic material acoustic coating plays an important role in noise and vibration control of underwater equipment. The dynamic mechanical properties of the viscoelastic material have a direct effect on the sound absorption performance of the acoustic
Zhuhui Luo +3 more
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Concentration measurement of carbon dioxide based on ultrasonic principle
Measurement: Sensors, 2021 Acoustic detection technology has the advantages of low cost, short detection period, online detection and low power consumption. However, the complex circuits and procedures are needed to measure the acoustic absorption while using the conventional ...
Weiguo Zhao, Wenhao Lou, Yunkai Xu
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Journal of Marine Science and Engineering, 2023 The acoustic absorption characteristics of anechoic coatings attached to the surface of underwater vehicles are closely related to their acoustic stealth.
Kangkang Shi +4 more
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Results of experimental research of acoustic characteristics of acoustic liners for turbofan engines
Авіаційно-космічна техніка та технологія, 2023 The subject of the research in this article is an acoustic liner designed to reduce aircraft noise in a wide frequency range. The purpose of the study is to determine the acoustic characteristics of an acoustic liner.
Yevhen Rymarenko
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Agronomy, 2022 The aim of this study was to determine the acoustic and thermal properties of particleboards made from mulberry wood pruning waste using urea formaldehyde resin (UF) as a binder. The investigation focused on the evaluation of the thermal conductivity and
Manuel Ferrandez-Villena +3 more
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Investigation of the Acoustic Performance of Bagasse
Journal of Materials Research and Technology, 2020 Bagasse from sugar cane waste is an important agriculture waste and the byproduct of the sugar industry. Generally, bagasse is used as a fuel for many industries which causes environmental pollution while it can be used as a good sound-absorbing material.
Ulhas Arun Malawade, M.G. Jadhav
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Low-frequency sound absorption performance of composite acoustic metamaterials with rotational labyrinth channels and micro-perforated panels [PDF]
AIP AdvancesIn this paper, a kind of novel acoustic metamaterial combined with a rotational labyrinth and a micro-perforated plate is designed. The design of the rotational labyrinth structure combined with micro-perforated plates endows the acoustic metamaterial ...
Xinxin Liu +4 more
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