Results 91 to 100 of about 13,594 (294)

Studies of the Relationship Between Sound Absorption Coefficient and Air Permeability of Wood [PDF]

, 2020
Chun–Won Kang, Eun–Suk JANG, Sang–Sik JANG, Masumi Hasegawa, Junji Matsumura   +4 more
openalex   +1 more source

Prediction of oblique incidence sound absorption coefficient for microfiber sound absorber

, 2019
Proceedings of the ICA 2019 and EAA Euroregio : 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019 : 9-13 September 2019, Aachen, Germany / proceedings editor: Martin Ochmann, Michael Vorländer, Janina Fels 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, ICA 2019, Aachen, Germany, 9 Sep 2019 - 13 ...
Komito, Tatsuhiro, Kitahara, Senji, Tanaka, Toshimitsu   +2 more
openaire   +2 more sources

Maximum Sound Absorption Coefficient of a Fiber Assembly

Journal of the Textile Machinery Society of Japan, 1964
To determine the most suitable porosity of a fiber assembly used as a sound absorbent, we measured the sound absorption coefficients of fiber assemblies having air spaces behind them by the standing wave method and investigated their sound absorption characteristics.
S Aso, R Kinoshita
openaire   +3 more sources

Crossing the Blood–Brain Barrier with Molecularly Imprinted Polymeric Nanocarriers: An Emerging Frontier in Brain Disease Therapy

Advanced Science, EarlyView.
Molecularly imprinted polymeric nanocarriers (nanoMIPs) offer robust, antibody‐mimetic platforms to overcome the blood‐brain barrier. The article surveys nanoMIP design and ligand‐directed surface engineering that harness receptor‐mediated transcytosis, and highlights therapeutic and diagnostic applications in neurodegeneration, brain tumors and ...
Ranjit De, Shuliang Shi, Kyong‐Tai Kim
wiley   +1 more source

The study of sound absorption coefficient of aluminium nanocomposites

طب کار, 2017
Background Sound is one of the most important work-related risk factors and most widespread physical factors threatening the health of workers. Almost one of the best ways to control the sound, is sound absorber.
Abolfazl Barkhordari, Asiye Abbasi, , , Ali Jebali   +4 more
doaj  

Improvement of Sound-Absorbing Wool Material by Laminating Permeable Nonwoven Fabric Sheet and Nonpermeable Membrane

Technologies
Thin sound-absorbing materials are particularly desired in space-constrained applications, such as in the automotive industry. In this study, we theoretically analyzed the structure of relatively thin glass wool or polyester wool laminated with a ...
Shuichi Sakamoto, Kodai Sato, Gaku Muroi
doaj   +1 more source

Biomimetic Multiscale‐Structured Biomass Graphene/Polyurethane Sponge Composite for Flexible Pressure Sensors and Intelligent Cushioning Materials

Advanced Science, EarlyView.
In this study, a multifunctional conductive sponge composite (MAPU) is developed using a biomimetic, hierarchical construction strategy emulating the growth process of natural wood. This approach involved integrating biomass‐derived graphitic nanoflakes, synthesized from luffa vine (LVGN), into a polyurethane (PU) sponge matrix.
Runmin Xu, Pusen Cao, Tingting Zhang, Jie Wei, Yue Wang, Zhi Huang, Zhenghang Chen, Jianfeng Xi, Yong Guo, Yuxia Chen   +9 more
wiley   +1 more source

Sound Absorption Coefficient Data for Laboratory-Produced Sound-Absorbing Panels from Textile Waste

Data
With the increasing demand for sustainable building materials, it has become essential to identify sustainable alternatives to conventional sound absorbers, particularly in the context of waste reduction and the circular economy.
Kristaps Siltumens, Inga Grinfelde, Raitis Brencis, Andris Paeglitis   +3 more
doaj   +1 more source

Velocity and Absorption Coefficient of Sound Waves in Classical Gases

, 2020
A. G. Magner, M. I. Gorenstein, U. V. Grygoriev   +2 more
openalex   +2 more sources

3D‐Printed Aerogel Metamaterials with Multiple Heterogeneous Interfaces Enables Integrated Control of Microwave Field, Acoustic Field, and Thermal Field

Advanced Science, EarlyView.
The Direct‐Ink‐Writing (DIW) 3D‐printed aramid nanofibers (ANF)/carbon nanotubes (CNT)/liquid metal (LM) aerogel metamaterial demonstrates an effective and lightweight strategy to achieve polarization insensitive & ultra‐wideband microwave absorption from 2.65‐18 GHz, broadband noise reduction effect in the 2800‐6400 Hz and thermal suppression ...
Yijie Liu, Kokila Khanal, Weimeng Chu, Sreekanth Ginnaram, Yijing Zhao, Chunlin Jia, Udeshwari Jamwal, Jiaqi Tao, Lvtong Duan, Wentao Yan, Yong Yang   +10 more
wiley   +1 more source