Results 41 to 50 of about 129,142 (267)
Acoustics, 2020 Computer modeling in acoustics allows for the prediction of acoustical defects and the evaluation of potential remediations. In this article, computer modeling is applied to the case of a barrel-vaulted sanctuary whose architectural design and ...
Heather Lai, Brian Hamilton
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Analysis and Identification of Nonlinear Acoustic Damping in Miniature Loudspeakers
Applied Sciences, 2021 Nonlinear acoustic damping is a key nonlinearity in miniature loudspeakers when the air velocity is at a high amplitude. Measurement of nonlinear acoustic damping is beneficial for predicting and analyzing the performance of miniature loudspeakers ...
Jie Huang +3 more
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Quantum Acoustics with Surface Acoustic Waves [PDF]
, 2016 It has recently been demonstrated that surface acoustic waves (SAWs) can interact with superconducting qubits at the quantum level. SAW resonators in the GHz frequency range have also been found to have low loss at temperatures compatible with superconducting quantum circuits. These advances open up new possibilities to use the phonon degree of freedom
Per Delsing +9 more
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Acoustic Metamaterial Beam Splitter [PDF]
arXiv, 2023 This paper proposes an acoustic beam splitter based on acoustic Luneburg lens. A two-dimensional acoustic Luneburg lens with gradient refractive index is achieved to provide a practical realization for the acoustic beam splitter. The acoustic wave propagation through the beam splitter was explored theoretically, numerically and experimentally.
arxiv
The Acoustics of the Catacombs [PDF]
Archives of Acoustics, 2015 Abstract The catacombs are underground places. This paper reports the results of acoustic measurements carried out inside the catacombs of “San Gennaro” (Naples) and in those one of “San Callisto” (Rome). Originally the catacombs were also used to perform sacred functions, although we don't know the type of these functions i.e.
IANNACE, Gino +2 more
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Sensors, 2020 With the development of ocean exploration technology and the rapid growth in the amount of marine science observation data, people are faced with a great challenge to identify valuable data from the massive ocean observation data. A recommendation system
Xiaoyang Song +6 more
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Influence and Mechanism Study of Ultrasonic Electric Power Input on Heavy Oil Viscosity
Energies, 2022 The reserves of heavy oil are enormous. However, its high viscosity and other characteristics make heavy oil extraction and transportation extremely difficult.
Jinbiao Gao +4 more
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An acoustic metamaterial lens for acoustic point-to-point communication in air [PDF]
Acoustical Physics 65 (2019): 1-6, 2017 Acoustic metamaterials have become a novel and effective way to control sound waves and design acoustic devices. In this study, we design a 3D acoustic metamaterial lens (AML) to achieve point-to-point acoustic communication in air: any acoustic source (i.e. a speaker) in air enclosed by such an AML can produce an acoustic image where the acoustic wave
arxiv +1 more source
Emerging opportunities and challenges for passive acoustics in ecological assessment and monitoring
Methods in Ecology and Evolution, 2018 High‐throughput environmental sensing technologies are increasingly central to global monitoring of the ecological impacts of human activities.
R. Gibb +3 more
semanticscholar +1 more source
The Journal of Engineering, 2019 Space-time adaptive detection (STAD) is an important research aspect of the bistatic multiple-input multiple-output (MIMO) radar system. The signal and clutter space-time models of the bistatic MIMO radar are described in this study. The knowledge-aided (
Sheng Yan, Chengpeng Hao, Da Xu, Bo Shi
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