Results 51 to 60 of about 1,225 (190)
Iteratively Reweighted Spherical Equivalent Source Method for Acoustic Source Identification
IEEE Access, 2019 Spherical equivalent source method (S-ESM) using rigid spherical microphone arrays can simultaneously identify sound sources in all directions. In this paper, based on the reweighting and sparse representation frameworks, the sparsity-promoting ...
Guoli Ping +3 more
doaj +1 more source
Patch near-field acoustical holography in cylindrical geometry
The Journal of the Acoustical Society of America, 2005 Spatial discrete Fourier transform-based near-field acoustical holography is known to suffer from windowing effects since the measurement aperture is necessarily finite. The latter effect can be mitigated by using patch holography, in which the measured field is extended beyond the measurement aperture based on successive smoothing operations.
Bolton, J Stuart, Lee, Moohyung
openaire +2 more sources
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Near-field acoustic holography for high-frequency weak sound sources under low signal-to-noise ratio [PDF]
, 2019 The mechanical noise in the cabin of the ship is so large that the leakage of high-pressure fluid is not easily noticed. In view of this situation, a near-field acoustic holography for high-frequency weak sound source under low signal-to-noise ratio is ...
Guo, Wenyong +5 more
core +1 more source
Sensors, 2019 Medical ultrasonic arrays are typically characterized in controlled water baths using measurements by a hydrophone, which can be translated with a positioning stage.
Torben Marhenke +5 more
doaj +1 more source
Bridging Optical and Mechanical Metamaterial/Metasurface Realms Toward Integrated Meta‐Systems
Advanced Optical Materials, Volume 14, Issue 14, 10 April 2026.This perspective describes the rise of metamaterials in the field of materials science, specifically with optical and mechanical functionality. Fundamentals of both optical and mechanical metamaterials are discussed with a review of state‐of‐the‐art metamaterial science.
Justin Brackenridge +2 more
wiley +1 more source
Near-field acoustic holography analysis with convolutional neural networks [PDF]
, 2020 Near-field Acoustic Holography (NAH) enables the contactless analysis of the vibrational field on plates and shells from the acoustic data captured in proximity of the vibrating object.
Malvermi R. +4 more
core
Advanced Photonics Research, Volume 7, Issue 4, April 2026.This review chronicles the evolution of intelligent electromagnetic (EM) perception systems empowered by metasurfaces and artificial intelligence. The progression from data‐driven imaging with implicit priors to semantic sensing with explicit priors is systematically reviewed.
Xingrui Zhou +5 more
wiley +1 more source
Motivations and Methods for Developing Nonlinear Near-Field Acoustic Holography [PDF]
, 2006 Understanding the acoustic field radiated by finite-amplitude sources such as rockets and jets can be important for assessing the impact on involved structures and surrounding communities.
Gee, Kent, Shepherd, Micah
core +1 more source
Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley +1 more source