Results 41 to 50 of about 139,276 (316)

Acoustical properties of some modern partitioning glass walls systems – case study [PDF]

Constructii: Journal of Civil Engineering Research, 2014
The case study presents the results of laboratory measurements carried out for the determination of airborne sound insulation properties for various modern partition glass walls systems.
Ioana-Mihaela ALEXE, Marta-Cristina ZAHARIA   +1 more
doaj  

Sound insulation of lightweight extensive green roofs [PDF]

, 2017
This paper examines factors affecting the sound insulation of lightweight extensive green roofs. The research had three objectives: (1) To examine the extent to which the sound insulation of lightweight extensive green roofs is affected by the variable ...
Galbrun, Laurent; id_orcid, Léa Scerri, Laurent Galbrun, Scerri, Léa   +3 more
core   +1 more source

Adjustable Magnetic-Control Design of a Metasurface for Sound Insulation

Frontiers in Mechanical Engineering, 2022
Magnetic field is one efficient approach to realize non-contact control of materials. Here, we propose a type of membrane-based metasurface consisting of several parts of magnetorheological films embedded with magnetic particles, which enable non-contact
Pu Xia, Yun Lai, Xiaozhou Liu
doaj   +1 more source

Study on sound insulation properties of flax fiber reinforced polypropylene matrix composites

Thermal Science
Fiber reinforced composites with fiber contents of 0%, 10%, 20%, 30%, and 40% were prepared using flax fiber as the raw material and polypropylene as the matrix.
Jumei Zhao, Wei Li, Weiqing Jiang, Chunqin Ma, Qihu Bu, Ni Qi, Yuankun Liu, Leigen Liu   +7 more
semanticscholar   +1 more source

Sound insulation properties of handmade multilayered recycled material panels: an experimental and analytical investigation

, 2022
Reusing recycled materials, such as end-of-life household materials, and exploiting their properties for a new purpose, different from the original one, is a topic of current relevance and in line with the principles of the circular economy model.
Piana E. A., Rychtarikova M., Levi E.
core  

Broadband Sound Insulation and Dual Equivalent Negative Properties of Acoustic Metamaterial with Distributed Piezoelectric Resonators

Materials, 2022
Aiming at the unsatisfactory sound transmission loss (STL) of thin-plate structures in the low-mid frequency range, this paper proposes an acoustic insulation metamaterial with distributed piezoelectric resonators. A complete acoustic prediction model is
Zhifu Zhang, Jiaxuan Wang, Zhuang Li, Xirui Zhang   +3 more
semanticscholar   +1 more source

Thermal, acoustic, and fire performance characterization of textile face mask waste for use as low-cost building insulation material

Developments in the Built Environment, 2023
Environmental issues are becoming increasingly important, and researchers are developing new technologies and models to reduce environmental impact. The circular economy is a production and consumption model that involves sharing, borrowing, reusing ...
Manuela Neri, Eva Cuerva, Elisa Levi, Pablo Pujadas, Edgardo Müller, Alfredo Guardo   +5 more
doaj   +1 more source

Lightweight Composite Building Materials with Hemp (Cannabis Sativa L.) Additives

Chemical Engineering Transactions, 2017
The scope of our research was to evaluate the potential of the content of fibre and shives in the biomass of industrial hemp cultivars grown under different nitrogen fertiliser rates to use them for increasing the energy efficiency as a thermal ...
R. Brencis, S. Pleiksnis, J. Skujans, A. Adamovics, U. Gross   +4 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Sound effect of transmitting specific emotions in music performance based on the acoustic properties of conjugated materials

Frontiers in Chemistry, 2023
In music performances, instruments made of traditional materials often cannot accurately express specific emotions through means such as tone, pitch, and timbre, and it is difficult to adjust the sound effects according to specific emotions. This article
Yangjingyi Li, Fenghsu Lee
doaj   +1 more source