Results 71 to 80 of about 2,485,601 (152)

Plasmonic lattice excitation of surface acoustic waves in silicon photonic circuits

APL Photonics
Surface acoustic waves enable long group delays and narrowband analog filtering on-chip, which are difficult to obtain with fast-moving electromagnetic waves.
Leroy Dokhanian, Saawan Kumar Bag, Mirit Hen, Inbar Shafir, Matan Slook, Shai Ben-Ami, Avi Zadok   +6 more
doaj   +1 more source

Acoustic Absorption of Vertical Gardens

Revista Elektrón, 2019
Vertical gardens, called "Greenery Systems", are a new tendency in modern constructions. They are applied increasingly more frequently on those buildings where energy and ecological considerations, environmentally friendly, are a priority.
Ariel Velis, Carlos Manuel Posse, Ana Rizzo La Malfa   +2 more
doaj  

Modeling and investigation of a multi-resonant metamaterial sound insulator

Archives of Acoustics
A design of multi-resonant acoustic metamaterial sound insulator is proposed to attenuate multi-tonal and broadband noise. The unit cell of the metamaterial consists of a porous material with four, nine, and sixteen embedded Helmholtz resonators and its
Zacharie Laly, Raymond Panneton, Noureddine Atalla, Sebastian Ghinet   +3 more
doaj   +1 more source

Nonlocal acoustic-mechanical metasurface for simultaneous and enhanced sound absorption and vibration reduction

Materials & Design
We propose an acoustic-mechanical metasurface with simultaneous sound absorption and vibration reduction functionalities. This acoustic-mechanical feature results from a nonlocal coupling effect in the designed composite meta-structure.
Haohan Zeng, Qiang Gao, Siyuan Gao, Feilong Mao, Zihao Su, Hao Luo, Yifan Zhu, Hui Zhang, Haiyan Fan   +8 more
doaj   +1 more source

Quantitative Analysis of Predictors of Acoustic Materials for Noise Reduction as Sustainable Strategies for Materials in the Automotive Industry

Applied Sciences
This study proposes a qualitative analysis for identifying the best predictors for ensuring passive noise control, aiming to achieve superior acoustic comfort in transportation systems.
Bianca-Mihaela Cășeriu, Manuela-Rozalia Gabor, Petruța Blaga, Cristina Veres   +3 more
doaj   +1 more source

Assessing Enhanced Acoustic Absorption From Sonosensitive Perfluorocarbon Emulsion With Magnetic Resonance-Guided High-Intensity Focused Ultrasound and a Percolated Tissue-Mimicking Flow Phantom.

Ultrasound Med Biol, 2023
Holman R, Guillemin PC, Lorton O, Desgranges S, Contino-Pépin C, Salomir R.   +5 more
europepmc   +1 more source

Stacked space-folded acoustic metasurfaces for the flexible control of sound absorption

APL Materials
Sound absorbing materials capable of working in harsh environments (e.g., fire resistance, moisture resistance, and pressure resistance) while having excellent low-frequency sound absorption properties are highly desirable for many practical applications.
Xin Wang, Jiahao Wang, Zedong Ma, Ilya Deriy, Mingzhao Song, Andrey Bogdanov, Yongyao Chen   +6 more
doaj   +1 more source

Frequency-tunable acoustic absorption in anisotropic graphene aerogels <i>via</i> morphological engineering of internal barriers. [PDF]

RSC Adv
Jin J, Ahn JG, So Yeon A, Lee R, Park T, Lee DJ, Song SH.   +6 more
europepmc   +1 more source

Study on noise-vibration coupling characteristics of premixed methane-air flame propagation in a tube with an acoustic absorption material. [PDF]

RSC Adv, 2019
Wang Q, Chang W, Liu S, Li Z, Zhu K.
europepmc   +1 more source

Influence of Pore Size on the Acoustic Absorption Properties of Open-Cell AlSi Porous Cylinders. [PDF]

Materials (Basel)
Andrei CC, Stan CS, Deaconu M, Pirvu C, Dragomirescu A, Corneschi I, Stan I.   +6 more
europepmc   +1 more source