Highly Sensitive Low-Frequency Acoustic Sensor Based on Functionalized Graphene Oxide.
Sign Up to like & getrecommendations! Published in 2024 at "Small"
DOI: 10.1002/smll.202409043
Abstract: Developing miniaturized low-frequency acoustic sensors with high sensitivity is crucial for diverse applications, including geological monitoring and aerospace exploration. However, the performance of low-frequency acoustic sensor is constrained by the limited mechanical robustness of traditional… read more here.
Keywords: acoustic sensor; frequency; functionalized graphene; low frequency ... See more keywords
An efficient technique for the indirect BEM for multi-frequency acoustic analysis using Green’s function approximation
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-018-0404-5
Abstract: We present an efficient technique for multi-frequency acoustic analysis by the variational indirect boundary element method. The system coefficient matrix of the boundary element method is frequency dependent and requires cumbersome computation in multifrequency acoustic… read more here.
Keywords: technique; frequency; acoustic analysis; multi frequency ... See more keywords
Anisotropic attenuation of GHz-frequency acoustic phonons and the Grüneisen tensor in MgO crystal
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0189944
Abstract: We report on measurements of the anisotropy of velocities and attenuation of GHz-frequency acoustic phonons in a cubic MgO crystal at room temperature. They are used to quantify the strong anisotropy of the Grüneisen parameter… read more here.
Keywords: attenuation ghz; ghz frequency; mgo crystal; acoustic phonons ... See more keywords
Simultaneous resonance characteristics of cylindrical bubbles under dual-frequency acoustic excitation based on singular-perturbation theory
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Fluids"
DOI: 10.1063/5.0231322
Abstract: The simultaneous resonance patterns and dynamic attributes of cylindrical bubbles subjected to dual-frequency acoustic excitation are explored in this article. Specifically, analytical models and local stability analysis are constructed for different types of simultaneous resonance… read more here.
Keywords: frequency; acoustic excitation; dual frequency; resonance ... See more keywords
Low-frequency acoustic edge modes based on a triangular maze
Sign Up to like & getrecommendations! Published in 2024 at "Physica Scripta"
DOI: 10.1088/1402-4896/ad295d
Abstract: For several years, acoustic topological insulators have received attention due to their unique ability to manipulate acoustic waves. However, acoustic wave manipulation due to acoustic topological insulators is based on Bragg scattering. This results in… read more here.
Keywords: frequency; edge; structure; acoustic topological ... See more keywords
Miniaturized GaN-Based Optical Hydrophones for Underwater Low-Frequency Acoustic Detection
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2024.3454151
Abstract: In this letter, the fabrication and characterization of a miniaturized optical hydrophone for detecting underwater acoustic signals is demonstrated. A light emitter and detector are fabricated on a GaN-based device at chip scale through the… read more here.
Keywords: inline formula; gan based; tex math; frequency acoustic ... See more keywords
Quantitative analysis of low frequency acoustic characteristics for reverse horn by bottleneck effect analogy method
Sign Up to like & getrecommendations! Published in 2019 at "Modern Physics Letters B"
DOI: 10.1142/s021798491950177x
Abstract: Reverse horn as one of the Acoustic Black Hole (ABH) structures can be used to effectively reduce low frequency acoustic waves by focusing the sound energy. The sound waves in relatively low frequency range are… read more here.
Keywords: frequency acoustic; characteristics reverse; low frequency; reverse horn ... See more keywords
Application of Low-Frequency Acoustic Waves to Extinguish Flames on the Basis of Selected Experimental Attempts
Sign Up to like & getrecommendations! Published in 2024 at "Applied Sciences"
DOI: 10.3390/app14198872
Abstract: Due to the consequences of fires, new and environmentally friendly firefighting techniques are constantly being sought. There are many methods of extinguishing flames around the world. One of them is a technique that uses acoustic… read more here.
Keywords: application low; acoustic waves; extinguish flames; low frequency ... See more keywords
A Compact Low-Frequency Acoustic Perfect Absorber Constructed with a Folded Slit
Sign Up to like & getrecommendations! Published in 2024 at "Materials"
DOI: 10.3390/ma17235992
Abstract: Tunable perfect acoustic absorption at subwavelength thickness has been a prominent topic in scientific research and engineering applications. Although metamaterials such as labyrinthine metasurfaces and coiling-up-space metamaterials can achieve subwavelength low-frequency acoustic absorption, efficiently realizing… read more here.
Keywords: frequency; acoustic absorption; absorption; low frequency ... See more keywords
Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications
Sign Up to like & getrecommendations! Published in 2025 at "Nanomaterials"
DOI: 10.3390/nano15090639
Abstract: Zeolite is increasingly recognized for its enhancement of low-frequency acoustic performance in microspeakers. The aging characteristics of zeolite have been regarded as the critical factor for the commercial viability of mobile phones products, but the… read more here.
Keywords: adsorption; water; aging characteristics; low frequency ... See more keywords
Low-frequency acoustic Fabry–Pérot fiber sensor based on a micromachined silicon nitride membrane
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Optics Letters"
DOI: 10.3788/col202018.101201
Abstract: In this Letter, a low-frequency acoustic sensor based on an extrinsic Fabry–Perot (FP) interferometer with a silicon nitride (Si3N4) membrane is demonstrated. Using micromachining techniques, the 800 nm thick Si3N4 membrane is deposited on an… read more here.
Keywords: frequency; sensor based; frequency acoustic; low frequency ... See more keywords