Results 21 to 30 of about 21,775 (260)

Signal classification and event reconstruction for acoustic neutrino detection in sea water with KM3NeT

EPJ Web of Conferences, 2017
The research infrastructure KM3NeT will comprise a multi cubic kilometer neutrino telescope that is currently being constructed in the Mediterranean Sea. Modules with optical and acoustic sensors are used in the detector.
Kießling Dominik
doaj   +1 more source

Measurement of the Acoustic Relaxation Absorption Spectrum of CO₂ Using a Distributed Bragg Reflector Fiber Laser

Sensors, 2023
Reconstruction of the acoustic relaxation absorption curve is a powerful approach to ultrasonic gas sensing, but it requires knowledge of a series of ultrasonic absorptions at various frequencies around the effective relaxation frequency.
Kun Shen, Jixian Yuan, Min Li, Xiaoyan Wen, Haifei Lu   +4 more
doaj   +1 more source

Near-field acoustic reconstruction method based on three-dimensional N-shaped convolution neural network and frequency focal-KH regularization

Zhongguo Jianchuan Yanjiu, 2023
ObjectivesLow sampling rates on reconstruction surfaces cause high reconstruction error in near-field acoustic holography. Therefore, a deep learning-based approach which is applicable to planar sound sources and high-precision reconstruction with low ...
Yuyang JI, Deyu WANG
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A mesoscale eddy reconstruction method based on generative adversarial networks

Frontiers in Marine Science
Mesoscale eddies are phenomena that widely exist in the ocean and have a significant impact on the ocean’s temperature and salt structure, as well as on acoustic propagation effects.
Xiaodong Ma, Lei Zhang, Weishuai Xu, Maolin Li, Xingyu Zhou   +4 more
doaj   +1 more source

Passive Acoustic Mapping for ultrasound therapy monitoring

Current Directions in Biomedical Engineering, 2021
Passive Acoustic Mapping (PAM) is an ultrasoundbased imaging method developed for monitoring therapeutic ultrasound. By using diagnostic transducers to passively record the acoustic signals that are emitted by cavitation bubbles, the origin of the ...
Therre Sarah, Bost Wolfgang, Hewener Holger, Tretbar Steffen, Fournelle Marc   +4 more
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A parameterized model for the real-time reconstruction of underwater sound speed fields in oceanic eddy environment

Frontiers in Marine Science
Predicting underwater acoustic propagation is essential in marine acoustic operations, could be significantly affected by oceanic physical phenomena. In this paper, we focus on modeling the impact of oceanic eddies on underwater sound speed fields.
Luochuan Xu, Anmin Zhang, Xuehai Sun, Xuehai Sun, Jian Xu, Yi Liu, Dan Chen, Linglong Chen   +7 more
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A New Approach for Acoustic Field Interpolation

Cybernetics and Information Technologies, 2016
The present paper describes the basic performance of the 18 microphone acoustic camera manufactured by Brüel & Kjær for acoustic field reconstruction. The new approach for acoustic field interpolation is proposed and investigated.
Chyrka Iu. D.
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Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

Advanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami, Hengzhe Ren, Erqian Dong, Ashkan Ghanbarzadeh‐Dagheyan, Chen Shen   +4 more
wiley   +1 more source

Measured Regional Division Optimization for Acoustic Tomography Velocity Field Reconstruction in a Circular Area

Sensors
The acoustic tomography (AT) velocity field reconstruction technique has become a research hotspot in recent years due to its noninvasive nature, high accuracy, and real-time measurement advantages.
Yixiao Chen, Xinzhi Zhou, Jialiang Zhu, Chenlong Dong, Tao Xu, Hailin Wang   +5 more
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Historically Based Room Acoustic Analysis and Auralization of a Church in the 1470s

Applied Sciences, 2021
Worship space acoustics have been established as an important part of a nation’s cultural heritage and area of acoustic research, but more research is needed regarding the region of northern Europe.
Hanna Autio, Mathias Barbagallo, Carolina Ask, Delphine Bard Hagberg, Eva Lindqvist Sandgren, Karin Strinnholm Lagergren   +5 more
doaj   +1 more source