Results 21 to 30 of about 66,725 (166)

Underwater Ambient Noise

open access: yes, 2021
Underwater ambient noise is primarily a background noise which is a function of time, location, and depth. Background baseline of the noise in ocean is represented by ambient noise generated from the ocean surface due to wind and rain. This understanding pertained to ambient noise under various conditions will help in improving the signal-to-noise ...
Baskar, Veeriayan, Vijaya   +1 more
openaire   +3 more sources

Widespread spatial and temporal extent of anthropogenic noise across the northeastern Gulf of Mexico shelf ecosystem

open access: yesEndangered Species Research, 2016
The Gulf of Mexico ecosystem represents the intersection between high marine biodiversity and extensive human use and impact. Anthropogenic marine activities are prominent in the Gulf, prompting concern regarding impacts of chronic elevated noise ...
Estabrook, BJ   +3 more
doaj   +1 more source

Seismic Attenuation Extraction From Traffic Signals Recorded by a Single Seismic Station

open access: yesGeophysical Research Letters, 2023
Seismic ambient noise contains rich information about the physical properties of the critical zone. From the motor vehicle noise, we extract the daily seismic attenuation by quantifying the linear relationship between the frequency and amplitude ratio of
Yumin Zhao   +5 more
doaj   +1 more source

Ambient seismic noise

open access: yesTerrae Didatica, 2019
Rainfall-induced variations in pore water pressures are the most common sources of significant disasters like landslides, dams’ failure, and other structural collapses. This study aimed at communicating preliminary results of seasonal monitoring of the Sobradinho landslide, Brasilia, Brazil, using ambient seismic noise.
Yawar Hussain   +7 more
openaire   +1 more source

Fault detection by reflected surface waves based on ambient noise interferometry

open access: yesEarthquake Research Advances, 2021
Detecting subsurface fault structure is important for evaluating potential earthquake risks associated with active faults. In this study, we propose a new method to detect faults using reflected surface waves observed in ambient noise cross correlation ...
Ning Gu   +3 more
doaj   +1 more source

ADVANCING ENVIRONMENTAL NOISE POLLUTION ANALYSIS IN URBAN AREAS BY CONSIDERING THE VARIATION OF POPULATION EXPOSURE IN SPACE AND TIME [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Ambient noise is a subtle form of pollution in large urban areas, degrading human health and well-being. In Europe, directives require that urban environmental noise be measured and mapped for the main periods of the daily cycle.
S. Freire, N. Gomes
doaj   +1 more source

Ambient Noise Levels in Acute Neonatal Intensive Care Unit of a Tertiary Referral Hospital [PDF]

open access: yesJournal of Krishna Institute of Medical Sciences University, 2017
Background: Advances in neonatal care have resulted in improved survival of neonates admitted to the intensive care of the Neonatal Intensive Care Unit (NICU).
Sonia R. B D'Souza   +5 more
doaj  

An Assessment of Environmental RF Noise Due to IoT Deployment

open access: yesSensors, 2023
The advent of the Internet of Things (IoT) has contributed to an increase in the production volume of RF-featured equipment. According to statistics from the literature, the IoT industry will soon deploy billions of products.
Dominique G. K. Ingala   +2 more
doaj   +1 more source

Super-resolution DOA estimation based on sparse spectrum fitting

open access: yesDianzi Jishu Yingyong, 2019
The ambient noise at any two different sensors, in practice, may correlate with each other, and the spatial distribution of ambient noise intensity may be directional because of wind and shipping noise sources. A linear harmonic noise model is considered
Guo Xiaoming, Wu Yaozhen, Qiao Zhengming
doaj   +1 more source

Societal Impact of COVID-19 Crisis on the Ambient Seismic Noise in Metropolitan France

open access: yesSeismica
The COVID-19 pandemic led to restrictions on human mobility worldwide. In France, numerous phases of lockdowns and curfews were instituted in an attempt to limit the consequences of this pandemic.
Flavien Mattern   +6 more
doaj   +1 more source

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