Results 91 to 100 of about 361,928 (300)

Prediction of Full-Frequency Deep-Sea Noise Based on Sea Surface Wind Speed and Real-Time Noise Data

open access: yesRemote Sensing
The prediction of ocean ambient noise is crucial for protecting the marine ecosystem and ensuring communication and navigation safety, especially under extreme weather conditions such as typhoons and strong winds.
Bo Yuan   +5 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
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

Ambient noise Love wave tomography of China

open access: yesEarth and Planetary Physics, 2019
We first report on the Love wave tomography of China based on ambient noise cross-correlations. We used 3 years of continuous waveform data recorded by 206 broadband seismic stations on the Chinese Mainland and 36 neighboring global stations and obtained
ZhiGao Yang, XiaoDong Song
doaj   +1 more source

Ambient Sea-Noise Directivity [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1962
This paper reports on the Fixed Acoustic Buoy (FAB), an acoustic noise-measuring system, which was installed on the ocean floor on 10 December 1960 in 2300 fathoms of water. The system utilized a vertical array of 21 hydrophones which could be electrically steered to any one of 13 vertical angles ranging from 0° (horizontal) to 90° (vertical upwards ...
openaire   +1 more source

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung   +7 more
wiley   +1 more source

Consensus Control of Multi-Agent Systems by Intermittent Brownian Noise Stabilization Scheme

open access: yesIEEE Access
This study explores the consensus of multi-agent systems in the presence of ambient noise using intermittent Brownian noise stabilization. Firstly, the research provides a mathematical explanation of multi-agent systems and intermittent stochastic noise,
Liangyi Cai   +4 more
doaj   +1 more source

Ambient Noise Characterization of Shallow Water Environment

open access: yesEmitter: International Journal of Engineering Technology, 2016
Understanding of environmental characteristic is a key factor in design of communication system. This paper describes an ambient  noise characterization of measurement in the shallow water ofSurabaya bay.
Tri Budi Santoso
doaj   +1 more source

An empirical model for inverted-velocity-profile jet noise prediction [PDF]

open access: yes
An empirical model for predicting the noise from inverted-velocity-profile coaxial or coannular jets is presented and compared with small-scale static and simulated flight data.
Stone, J. R.
core   +1 more source

Colloidal Crack Sintering Lithography for Light‐Induced Patterning of Particle Assemblies

open access: yesAdvanced Functional Materials, EarlyView.
Colloidal crack sintering lithography (CCSL) is a microfabrication technique that uses light‐induced photothermal heating to trigger sintering and controlled cracking in polymer colloidal assemblies. Local structural changes generate microchannels and patterns, enabling direct writing of diverse topographic motifs.
Marius Schoettle   +2 more
wiley   +1 more source

Investigating the effect of ambient temperature, sound type, and noise level on the heart rate of the elderly

open access: yesExperimental Gerontology
Background: Given the increasing elderly population in the future, attention to the health of older adults is important. Environmental factors, including ambient temperature, sound type, and noise level, greatly affect the health of older adults.
Mohammad Tohidi   +2 more
doaj   +1 more source

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