Results 11 to 20 of about 95,492 (253)

Influence of the Coating System on the Acoustic, Thermal and Luminous Performance of Brazilian Buildings

open access: yesDesigns, 2020
This work presents an extensive numerical simulation to analyze the influence of the coating layers on the performance of construction systems, in order to make the constructions projects feasible, not only economically but also technically.
Pedro F. Gois   +5 more
doaj   +1 more source

Investigation on the acoustic properties of structural gradient 316L stainless steel hollow spheres composites

open access: yesScience and Engineering of Composite Materials, 2021
In this study, a kind of structural gradient metal hollow spheres composites (SG-MHSCs) were fabricated using two kinds of 316L stainless steel hollow spheres with different diameters and A356 aluminum through the casting method.
Wang Chunhe   +2 more
doaj   +1 more source

Method for Establishing a Traveling Wave Sound Field with Adaptive Control in a Water-Filled Sound Tube

open access: yesApplied Sciences, 2021
The transfer function method is a common method for establishing a traveling wave field in a sound tube to measure the reflection and transmission coefficient of underwater material.
Yan Xiao, Xuesong Zhang
doaj   +1 more source

Nonlinear Performance on Acoustic Transversal Filters

open access: yes2020 IEEE International Ultrasonics Symposium (IUS), 2020
The recently proposed transversal topology for creating acoustic filters allows to achieve arbitrary filter responses, in terms of position of transmission zeros and bandwidth, among others. This new topology might indeed help to give response to the demanding filter specification of the recent and future wireless communication systems, some not yet ...
Perea Robles, Rafael   +3 more
openaire   +2 more sources

Organized Computational Measurement to Design a High-Performance Muffler

open access: yesMetrology, 2023
Engine noise, as a source of sound pollution for humans and the environment, can be reduced by designing a high-performance muffler. This study presents a novel, organized design process of that muffler for the KTM390 engine as a case study. The acoustic
Mehran Saadabadi   +2 more
doaj   +1 more source

Acoustic Performance Study of FRP Acoustic Window

open access: yesTransactions of the Korean Society for Noise and Vibration Engineering, 2011
For developing acoustic window, transmission loss in accordance with incident angle was calculated and compared with measurement results. In design stage, the material choice of acoustic window is very important because the material is one of main parameters of transmission loss and structural strength.
Young-Soo Seo   +3 more
openaire   +2 more sources

Elaboration and Characterization of Composite Materials Based on Plaster-Gypsum and Mineral Additives for Energy Efficiency in Buildings

open access: yesProceedings, 2019
The building sector is one of the largest energy consumers in the world, prompting scientific researchers to find solutions to the problem. The choice of appropriate building materials presents a considerable challenge for improving the thermal comfort ...
Said Bouzit, Mohamed Taha
doaj   +1 more source

Analysis on acoustic performance of floating raft vibration isolation system with liquid tank

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveThis paper aims to establish a dynamic model of a floating raft vibration isolation system with a liquid tank in order to study the mass effect of the liquid medium, tank form, structural stiffness and loading rate on acoustic performance ...
Zhiyang LEI   +5 more
doaj   +1 more source

Development of a BIM-Based Framework Using Reverberation Time (BFRT) as a Tool for Assessing and Improving Building Acoustic Environment

open access: yesBuildings, 2022
Both the building design and the construction process determine the indoor acoustic quality of enclosures. A suitable indoor acoustic environment is crucial for the productivity and well-being of users.
Antonio J. Aguilar   +3 more
doaj   +1 more source

Thermal and Acoustic Performance of Gypsum Plasters Mixed with Different Additives: Influence of Bio-Based, Synthetic, and Mineral Fillers

open access: yesApplied Sciences, 2023
Due to the high impact of the building sector on the environment, a growing interest focuses on insulating materials able to ensure good thermo-acoustic performance for the building envelope from a sustainable and circular economy perspective.
Francesca Merli   +3 more
doaj   +1 more source

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