Results 91 to 100 of about 8,242,592 (347)

Sound radiation into air by a point source moving underwater

, 2012
Based on the discovery that the majority of radiated energy of a stationary sound source in shallow water is into the air at infrasonic frequencies, the sound transmission into air from a point source moving underwater is investigated in this letter.
Qiu, X, Deng, Y, Tao, J
core   +1 more source

Nonlinear disturbance evolution in a two-dimensional boundary layer along an elastic plate and induced radiated sound [PDF]

, 2010
The interaction between a boundary-layer flow and an elastic plate is addressed by direct numerical simulation, taking into account the full coupling between the fluid flow and the flexible wall.
EHRENSTEIN, Uwe, BOT, Patrick, GOBERT, Marie-Laure, Astolfi, André, Astolfi, Jacques-André, ASTOLFI, Jacques Andre   +5 more
core   +1 more source

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

Advanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan, Chenglin Han, Kuan He, Chadi Ellouzi, Yunlong Wang, Li‐Qun Chen, Jie Sun, Zhaodong Xu, Chen Shen, Tianzhi Yang   +9 more
wiley   +1 more source

Sound Source Localization Fusion Algorithm and Performance Analysis of a Three-Plane Five-Element Microphone Array

Applied Sciences, 2019
To reduce the negative effect on sound source localization when the source is at an extreme angle and improve localization precision and stability, a theoretical model of a three-plane five-element microphone array is established, using time-delay values
Hongyan Xing, Xu Yang
doaj   +1 more source

Sound source localization and speech enhancement with sparse Bayesian learning beamforming.

Journal of the Acoustical Society of America, 2018
Speech localization and enhancement involves sound source mapping and reconstruction from noisy recordings of speech mixtures with microphone arrays.
Angeliki Xenaki, Jesper Bünsow Boldt, Mads Græsbøll Christensen   +2 more
semanticscholar   +1 more source

Towards a generalized theory of low-frequency sound source localization [PDF]

, 2012
Low-frequency sound source localization generates considerable amount of disagreement between audio/acoustics researchers, with some arguing that below a certain frequency humans cannot localize a source with others insisting that in certain cases ...
Lewis, Simon P., Hawksford, Malcolm O. J., Hill, Adam J.   +2 more
core  

The role of perceived source location in auditory stream segregation: separation affects sound organization, common fate does not

, 2013
The human auditory system is capable of grouping sounds originating from different sound sources into coherent auditory streams, a process termed auditory stream segregation. Several cues can influence auditory stream segregation, but the full set of cues
Andreou, Andreas G., Lidia Shestopalova, Tamás M. Bőhm, Guillame Garreau, Andreas G. Andreou, Shestopalova, Lidia, Denham, Susan L., Winkler, István, Julius Georgiou, István Winkler, Bőhm, Tamás M., Georgiou, Julius, Alexandra Bendixen, Bendixen, Alexandra, Andrew Cassidy, Philippe Pouliquen, Cassidy, Andrew, Susan L. Denham, Pouliquen, Philippe, Garreau, Guillame   +19 more
core   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

A Systematic Study of GelMA‐Carbopol Bioinks for High‐Fidelity Extrusion 3D Bioprinting at Physiological Temperatures

Advanced Healthcare Materials, EarlyView.
Gonzalez Martinez and collaborators develop a strategy to formulate high performance GelMA‐based bioinks with low solids contents. The resulting bioinks enable 3D bioprinting at 37 °C of high‐fidelity structures with tunable mechanical properties that support high cell viability and function.
David A. González‐Martínez, Aidee V. Arizpe Tafoya, Eduardo González‐Martínez, Mabel Barreiro Carpio, Laura Daniela Serrano Andrade, Christopher T. N. Chow, Mohammadhossein Dabaghi, Jeremy A. Hirota, Jose M. Moran‐Mirabal   +8 more
wiley   +1 more source

High-efficiency sound source localization using data-driven sparse sampling with validation using monopole laser sound source

AIP Advances
This study proposes a framework that reduces the calculation cost of sound source localization with the Amiet model, using a data-driven sparse sampling method.
S. Kaneko, Y. Ozawa, K. Nakai, Y. Saito, K. Asai, T. Nonomura, H. Ura   +6 more
doaj   +1 more source