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1. Fabrication and acoustic absorption properties of electrospun polyacrylonitrile nanofiber membranes NSTL国家科技图书文献中心

Huang, Chenyan |  Liu, Yalong... -  《Physica Scripta》 - 2025,100(2) - 共12页

摘要:, exhibit excellent sound absorption performance |  technique to investigate their sound absorption properties |  excellent sound absorption coefficient at the same | . The acoustic characteristics of the nanofiber |  simulation. The results showed that the resonant absorption
关键词: electrospinning |  polyacrylonitrile |  sound absorption properties |  finite element model

2. Optimization and imputation of acoustic absorption sequence prediction for transversely isotropic porous materials: A MultiScaleCNN-Transformer-PSO model approach NSTL国家科技图书文献中心

Diao, Lei |  Tao, Meng... -  《Measurement》 - 2025,242PD - 116098~ - 共10页

摘要: optimization of sound absorption coefficients for |  sound absorption coefficients in transversely |  analysis via COMSOL 6.2, a database of sound absorption |  matrix method based on the Biot model and acoustic |  absorption coefficients in the 1000-2000 Hz range, meeting
关键词: MultiScaleCNN |  Transformer Model |  Acoustic Absorption Coefficient |  Particle Swarm Optimization |  Transversely Isotropic Porous Materials

3. On the relationship between acoustic absorption and temperature gradient in a thermoacoustic liner NSTL国家科技图书文献中心

Biswas, Samarjith |  Kresl, William... -  《International Journal of Aeroacoustics》 - 2025,24(1/2) - 42~67 - 共26页

摘要: both acoustic absorption and thermal output as well |  contrast, acoustic absorption diminishes when the stack |  between the acoustic absorption and the thermoacoustic |  convert acoustic energy to heat and vice versa without |  thermoacoustic stacks within the framework of acoustic liners
关键词: Thermoacoustics |  acoustic liner

4. Reconfigurable modular acoustic metamaterial for broadband sound absorption NSTL国家科技图书文献中心

Zhongjian Mei |  Tongyang Shi... -  《Mechanical Systems & Signal Processing》 - 2025,226(Mar.) - 112348.1~112348.20 - 共20页

摘要:, the acoustic metamaterial achieves an absorption |  sound absorption performance and the underlying | This study presents a reconfigurable acoustic |  metamaterial consisting of stacked multiple absorption |  absorption in both enclosed space and ventilation system
关键词: Acoustic metamaterial |  Broadband sound absorption |  Absorption module |  Structural reconfigurability

5. Acoustic absorption characterization and modeling using support vector regression of plasterboards reinforced with woven Moroccan sisal fiber NSTL国家科技图书文献中心

Zineb Samouh |  Hafida Er-Rradi... -  《Building acoustics》 - 2025,32(1) - 71~89 - 共19页

摘要: investigates the acoustic absorption properties of |  Basket 2-2 weave achieved the highest sound absorption |  predict the sound absorption coefficient, with the | The acoustic comfort and environmental |  water/plaster ratio of 0.7. The acoustic performance
关键词: Plaster |  sisal fiber |  woven fabric |  sound absorption coefficient |  SVM modeling

6. Omnidirectional sound wave absorption based on the multi-oriented acoustic meta-materials NSTL国家科技图书文献中心

Bai X. |  Xiao Z.... -  《Applied acoustics》 - 2025,228(Jan.) - 1.1~1.13 - 共13页

摘要: omnidirectional sound wave absorption, which is composed of unit |  hot topic in rotary equipment sound absorption with |  sound absorption coefficient of MOAMM maintains over |  and the absorption performance is not good in random |  acoustic meta-material (MOAMM) that can be applied in
关键词: Acoustic meta-materials |  Omnidirectional absorption |  Random incidence |  Sound absorption

7. Design and sound absorption analysis of labyrinthine acoustic metamaterials based on fractal theory NSTL国家科技图书文献中心

Cao, Dongxing |  Wang, Liming... -  《International Journal of Solids and Structures》 - 2025,306 - 共10页

摘要: sound absorption capabilities. This study introduces a | ) designed for sound absorption analyses in a low-frequency |  narrow channels, the sound absorption coefficient of |  absorption. A comprehensive analysis of low-frequency sound |  excellent low-frequency sound absorption at deep sub
关键词: Acoustic metamaterial |  Low-frequency sound absorption |  Fractal |  Deep sub-wavelength absorption

8. Bifunctional acoustic lossy coupler for broadband power splitting and absorption NSTL国家科技图书文献中心

Wang R. |  Hou J.... -  《Applied acoustics》 - 2025,228(Jan.) - 1.1~1.8 - 共8页

摘要: bifunctional acoustic lossy coupler for broadband power |  splitting and absorption. Following the three-level system | ) acoustic system is proposed to obtain efficient energy | , the acoustic coupler can be considered as a |  reversibility of acoustic path, a switchable acoustic logic
关键词: Acoustic waveguide |  Energy transfer |  Power absorption |  Power splitting |  Wave propagation

9. Chapter 7 Use of Natural Fibers for Sound Absorption: A Chronological Literature Review NSTL国家科技图书文献中心

Gabriel Weiss Mattio... |  Flavio Issao Kubota... -  《Advances in Structural Vibration》 -  ABCM International Congress of Mechanical Engineering - 2025, - 83~94 - 共12页

摘要: materials for acoustic absorption panels. This |  natural fibers for sound absorption, considering their |  criteria were applied: the sound absorption coefficient | , have tables or graphs of the sound absorption |  absorption purposes.
关键词: Natural fibers |  Acoustic absorption |  Sound absorption |  Chronological literature review

10. Waveform analysis of acoustic emission signals arising from water absorption of cracked concrete NSTL国家科技图书文献中心

Chen, Qing |  Jiang, Zhengwu... -  《Nondestructive Testing and Evaluation》 - 2025,40(2) - 549~563 - 共15页

摘要: environments. In this study, water absorption of mechanical |  cracked cement mortar has been monitored using acoustic |  determine the entropy value of the acoustic signals. The |  results show that the signal of water absorption |  water absorption is distributed in frequency of 20
关键词: Water absorption |  cracking |  acoustic |  wavelet |  concrete
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