Results 51 to 60 of about 2,071,116 (352)
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Origin of broadband acoustic emission from a dancing cavitation bubble
Applied Physics ExpressAcoustic cavitation generates bubbles exhibiting violent expansion and contraction under intense ultrasound in liquids. The acoustic emissions (AE) spectrum from cavitation bubbles contains harmonics, subharmonics, ultraharmonics, and broadband noise ...
Hyang-Bok Lee, Pak-Kon Choi
doaj +1 more source
Archives of Acoustics, 2016 Annoyance ratings for artificially created noises, resembling the main characteristics of temporal wind turbine noise, were studied by means of a listening experiment involving 21 participants with normal hearing.
Honorata Zofia HAFKE-DYS +4 more
doaj +1 more source
Light: Science & Applications, 2023 Being capable of sensing broadband infrared (IR) light is vitally important for wide-ranging applications from fundamental science to industrial purposes.
Di Wu +10 more
semanticscholar +1 more source
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
Acta AcusticaAccurate measurement of sound pressure level (SPL) is a cornerstone for understanding acoustic communication, animal behavior, and ecological dynamics. Acoustic signals can be broadly categorized into broadband and tonal sounds.
Sasindran Shwetha +3 more
doaj +1 more source
Analysis of aerodynamic and aeroacoustics of full scale landing gear
Xibei Gongye Daxue Xuebao, 2022 The aerodynamic noise of a landing gear is an important source of airframe noise. The analysis of its noise characteristics plays an important role in the design of a low-noise landing gear.
TIAN Siyuan +5 more
doaj +1 more source
The Effect of Interchannel Time Difference on Localisation in Vertical Stereophony [PDF]
, 2015 Listening tests were conducted in order to analyse the localisation of band-limited stimuli in vertical stereophony. The test stimuli were seven octave bands of pink noise, with centre frequencies ranging from 125–8000Hz, as well as broadband pink noise.
Lee, Hyunkook, Wallis, Rory
core +1 more source
Three‐dimensional Antimony Sulfide Based Flat Optics
Advanced Functional Materials, EarlyView.This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang +18 more
wiley +1 more source
Aerospace, 2022 This paper presents a combined experimental and numerical investigation on a novel liner concept for enhanced low-frequency and broadband acoustic attenuation. In particular, two different realizations, derived from conventional Helmholtz resonators (HR)
Moritz Neubauer +10 more
doaj +1 more source