Results 91 to 100 of about 364,613 (301)

WMSAN Python Package: From Oceanic Forcing to Synthetic Cross-correlations of Microseismic Noise

open access: yesSeismica
Seismic ambient noise spectra ubiquitously show two amplitude peaks corresponding to distinct oceanic wave interaction mechanisms called primary (seismic period (T) ~ 14 s) and secondary (T ~ 7 s) microseism.
Lisa Tomasetto   +6 more
doaj   +1 more source

Distributed and Communication-Efficient Spatial Auto-Correlation Subsurface Imaging in Sensor Networks

open access: yesSensors, 2019
A wireless seismic network can be effectively used as a tool for subsurface monitoring and imaging. By recording and analyzing ambient noise, a seismic network can image underground infrastructures and provide velocity variation information of the ...
Maria Valero   +3 more
doaj   +1 more source

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee   +7 more
wiley   +1 more source

Evaluation and Analysis of Environmental Noise Pollution in Seven Major Cities of India

open access: yesArchives of Acoustics, 2017
The paper describes the noise monitoring data acquired from the pilot project on the establishment of National Ambient Noise Monitoring Network (NANMN) across seven major cities in India for continuous noise monitoring throughout the year.
Naveen GARG   +5 more
doaj   +1 more source

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

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

Disordered Carbon Shells Enable Shape Dependent Fluorescence Enhancement in Nanodiamond Quantum Sensors Revealed by Correlative TEM–Fluorescence Microscopy

open access: yesAdvanced Functional Materials, EarlyView.
Molten KNO2 treatment induces a lowrefractive index disordered carbon shell on fluorescent nanodiamonds, enhancing fluorescence emission while preserving spin coherence. Machine learningassisted correlative TEMPL enables direct single‐particle resolution of this enhancement relative to air‐oxidized nanodiamonds of similar morphology, establishing a ...
Parkarsh Kumar   +10 more
wiley   +1 more source

A combined inversion of Rayleigh wave dispersion and 2‐D resonance frequencies [PDF]

open access: yes, 2017
Shear wave velocities of the sediment fill of a deep Alpine valley are estimated from ambient noise recorded on linear and circular arrays. We propose a combined inversion of 2‐D resonance frequencies identified from site‐to‐reference spectral ratios and
Fäh, D., Roten, D.
core  

Extreme Value laws for dynamical systems under observational noise

open access: yes, 2014
In this paper we prove the existence of Extreme Value Laws for dynamical systems perturbed by instrument-like-error, also called observational noise.
Faranda, Davide, Vaienti, Sandro
core   +3 more sources

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

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