Results 81 to 90 of about 128,951 (314)

Study of word-in-noise perception scores at saccular acoustic sensitivity level: randomized clinical trial

open access: yesThe Egyptian Journal of Otolaryngology
Background In humans, saccular acoustic sensitivity has been confirmed. The aim of this study was to determine the scores of the word-in-noise perception test at the saccular acoustic sensitivity level. Methodology In this randomized clinical trial study,
Seyede Faranak Emami   +3 more
doaj   +1 more source

History of acoustic beamforming

open access: yes, 2006
The development of the beamforming method (also called microphone antenna, phased array of microphones, acoustic telescope, or acoustic camera) is reviewed in this paper.
Michel, U., Ulf Michel
core  

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud   +31 more
wiley   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

open access: yesAdvanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen   +19 more
wiley   +1 more source

Acoustic signal enhancement method for belt conveyor idler bearings

open access: yesGong-kuang zidonghua
To address the issues in existing acoustic signal enhancement methods for belt conveyor idler bearings, such as excessive noise reduction leading to signal distortion, poor adaptability, and ineffective extraction of complex sound field characteristics ...
YOU Qinghua, WU Peng, MA Bo
doaj   +1 more source

The acoustic of a courtyard

open access: yes, 2018
This paper shows the results of acoustic measurements carried out inside a courtyard of the “Reggia of Caserta” (Italy) without audience, and with the aid of a software for architectural acoustics the acoustic characteristics, with audience, were ...
Iannace, Gino   +2 more
core  

Nonlocal Metaspire: A Scalable Elastic Material Platform With Decoupled Mechanical Modes

open access: yesAdvanced Materials, EarlyView.
Nonlocal Metaspire introduces sequential rotation to realize wider scalability in implementing complex nonlocal couplings in elastic metamaterials while suppressing unintended mode coupling. Numerical results clarify the underlying wave motions, demonstrate mode‐decoupled roton and maxon formation, and support a straightforward extension to higher ...
Seung Han Kim   +3 more
wiley   +1 more source

Optimization Strategy Research of High-speed Train Roof Acoustic Hood

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveWith the rapid development of high-speed railways, the train running speed increases constantly, but the issue of running noise has become increasingly prominent.
Jie ZHENG   +3 more
doaj   +1 more source

The electromagnetic performance of brushless permanent magnet DC motors - with particular reference to noise and vibration. [PDF]

open access: yes, 1991
A comprehensive analytical technique is developed for predicting the instantaneous magnetic field distribution in radial-field, surface-mounted permanent magnet brushless DC motors under any load condition and commutation strategy.
Zhu, Zi-Qiang
core  

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy