Results 81 to 90 of about 84,837 (199)

Sound Insulation Performance of Furfuryl Alcohol-Modified Poplar Veneer Used in Functional Plywood. [PDF]

Materials (Basel), 2022
Wu S, Xu W.
europepmc   +1 more source

Innovative acoustic jacketing for oil and gas pipelines [PDF]

Oil and Gas Pipelines need thermal insulation and cladding to protect them from harsh environmental conditions, prevent heat losses, minimise health and safety risks and comply with legislation.
Almond, Mark, Asthana, Abhishek, Cockerham, Graham, Mohammad, Kashif   +3 more
core  

Study on Sound-Insulation Performance of an Acoustic Metamaterial of Air-Permeable Multiple-Parallel-Connection Folding Chambers by Acoustic Finite Element Simulation. [PDF]

Materials (Basel), 2023
Peng W, Bi S, Shen X, Yang X, Yang F, Wang E.   +5 more
europepmc   +1 more source

Index to NASA Tech Briefs, 1975 [PDF]

, 1976
This index contains abstracts and four indexes--subject, personal author, originating Center, and Tech Brief number--for 1975 Tech ...

core   +1 more source

Noise Reduction Performance of Metamaterials Sound Insulation Plate

AbstractIn order to reduce the adverse effects of noise generated by urban vehicles on residents, a super-structured phononic crystals sound isolation plate is designed to enhance the low-frequency noise reduction capability of the plate by utilizing the special acoustic properties of the super-structure.
Baoqing Zhang, Yubin Rao, Yunyi Guo, Wangqiang Xiao   +3 more
openaire   +1 more source

Research on the Sound Insulation Performance of Composite Rubber Reinforced with Hollow Glass Microsphere Based on Acoustic Finite Element Simulation. [PDF]

Polymers (Basel), 2023
Yang X, Tang S, Shen X, Peng W.
europepmc   +1 more source

Study on acoustic performance of new spiral sound absorbing and insulating metamaterial

Journal of Low Frequency Noise, Vibration and Active Control
Middle and low frequency band sound waves have strong penetration and diffraction abilities during the propagation process, making it difficult to attenuate.
Song Liu, Pan-pan Liu, Ren-jie Zhao, Jian-hua Lu, Kang Yang, Huayu Zhou, Yi-fan Du   +6 more
doaj   +1 more source

Containerless high purity pulling process and apparatus for glass fiber [PDF]

, 1986
Apparatus and method for pulling optical glass fibers in a containerless environment is disclosed which includes a single axis acoustical levitation furnace in which a specimen is levitated and melted.
Ethridge, E. C., Naumann, R. J.
core   +1 more source

Vibro-acoustic topology optimization for improving the acoustic insulation and mechanical stiffness performance of periodic sandwich structure

iScience
Summary: The traditional parameter adjustment design makes it difficult to effectively regulate the acoustic insulation performance of periodic sandwich structures while meeting the lightweight and mechanical stiffness requirements. A dynamic three-field
Kui Luo, Jie Hu, Song Yao, Ning Gan, Chenfei Cao, Jiao Xu, Wenkang Cao   +6 more
doaj   +1 more source

Sound Insulation Performance of Composite Double Sandwich Panels with Periodic Arrays of Shunted Piezoelectric Patches. [PDF]

Materials (Basel), 2022
Li S, Xu D, Wu X, Jiang R, Shi G, Zhang Z.   +5 more
europepmc   +1 more source