Results 141 to 150 of about 99,340 (315)

Modeling the effect of the number and angle of the baffle on the sound transmission loss in reactive muffler [PDF]

open access: yesSalāmat-i kār-i Īrān
Introduction: The sound coming from the exhaust of cars is the main cause of noise pollution in the urban environment. Mufflers are used as a passive noise control device to reduce the sound coming from the exhaust of cars.
Iraj Alimohamadi   +4 more
doaj  

Design and Performance Analysis of Integrated Pressure-Resistant and Sound-Absorbing Coating with High-Transmittance Composite

open access: yes水下无人系统学报
To address the significant degradation in sound absorption performance of conventional cavity-type sound-absorbing rubber coatings under high pressure environments, an integrated pressure-resistant and sound-absorbing coating with a high-transmittance ...
Jian TANG   +3 more
doaj   +1 more source

The effects of sound propagation and avoidance behaviour on naval sonar levels received by cetaceans

open access: yes, 2012
The use of active sonar is deemed to be essential for naval operations, but its potential impact on marine life has raised concerns worldwide. In a risk-assessment framework, characterisation of risk of harm is accomplished by combining exposure ...
Wensveen, Paul J.
core  

Microblasting Wound Dressings Mechanically Disrupt Polymicrobial Biofilms to Enhance Healing in Treatment‐Resistant Wounds

open access: yesAdvanced Science, EarlyView.
Treatment‐resistant wounds caused by polymicrobial biofilms are refractory to conventional therapies due to the dense extracellular matrices. We developed μBLAST, a microblasting wound dressing that combines MnO2‐doped biosilica and a H2O2‐releasing mesh to generate localized oxygen microbubbles that mechanically disrupt biofilms.
Yujin Ahn   +12 more
wiley   +1 more source

Fichier audio de 2 phrases phonémiquement ambigues en français 2

open access: yes, 2010
fichier audio contenant 2 phrases phonémiquement ambigues qui peuvent être désambiguisées par la prosodie prononcé par 16 étudiants francophones en licence (3ème année) pour leur devoir de linguistique de ...
Langage et langues : description, théorisation, transmission
core   +1 more source

AI‐Assisted Digital Single‐Molecule Activity Tracker for Decoupling Intrinsic Heterogeneity from Photo‐Oxidative Damage in High‐Photon‐Flux Enzymology

open access: yesAdvanced Science, EarlyView.
Employing a digital single‐molecule activity tracker (dSMAT), this research demonstrates that high‐photon‐flux irradiation drives progressive oxidative scarring in polymerases. Unlike simple thermal denaturation, real‐time kinetic tracking dynamically visualizes enzymes degrading into multiple impaired subpopulations.
Anran Zheng   +11 more
wiley   +1 more source

Influence of the type of fastening of multi-layered closing panels on the estimate of the sound transmission loss

open access: yesREM: International Engineering Journal
Industrialized closing systems appear as rational solutions in steel-structured construction. These closing systems, consisting of multi-layered panels, have been applied in projects where it is intended to obtain a high sound transmission loss without ...
Rovadávia Aline de Jesus Ribas   +1 more
doaj   +1 more source

Models of binaural hearing for sound lateralisation and localisation

open access: yes, 2007
The current study suggests two models of binaural hearing, which aim to make predictions for inside- and outside-head localisation of a single sound source in the horizontal plane.
Park, Munhum
core  

A Metal‐Phenolic Nanocluster Orchestrates Mito‐Ca2+ Metabolic Autonomy for Tumor Ca2+ Interference Therapy

open access: yesAdvanced Science, EarlyView.
Tumor Ca2+ interference therapy suffers from self‐protective Ca2+ metabolic autoregulation. In this scenario, a versatile metal‐phenolic nanocluster (TCMH) is engineered to modulate mitochondrial calcium uniporter (MCU) ‐mediated mito‐Ca2+ metabolic autonomy.
Ronglong Chen   +13 more
wiley   +1 more source

Super‐Resolution and High‐Data‐Density Acoustic Meta‐Hologram via Amplitude and Phase Coupling

open access: yesAdvanced Science, EarlyView.
A super‐resolution acoustic meta‐hologram utilizes amplitude‐phase coupling under energy conservation constraints to overcome the traditional diffraction limit. This conceptually advanced approach achieves high‐fidelity acoustic field reconstruction and dense information transmission, unlocking new potentials for high‐resolution acoustic imaging and ...
Xiao Guo   +15 more
wiley   +1 more source

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