Results 21 to 30 of about 2,189 (213)
Seismic Attenuation Extraction From Traffic Signals Recorded by a Single Seismic Station
Geophysical 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
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Fault detection by reflected surface waves based on ambient noise interferometry
Earthquake 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
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The Effects of Ambient Noise on Vigilance Performance [PDF]
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1969 The effects of continuous noise versus intermittent noise on subjects performing an audiovisual checking task were examined. Although there was no difference between the effects of the two kinds of noise on total errors, intermittent noise produced a larger number of omission errors than did continuous noise.
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Ambient infrasound noise [PDF]
Geophysical Research Letters, 2005 The ambient infrasound noise environment is characterized for 21 globally distributed infrasound arrays in the frequency band of 0.03 to 7 Hz. Power Spectral Density (PSD) is measured for one site of each array for 21 intervals at each of four times of day from January 2003 through January 2004.
J. Roger Bowman +2 more
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ADVANCING ENVIRONMENTAL NOISE POLLUTION ANALYSIS IN URBAN AREAS BY CONSIDERING THE VARIATION OF POPULATION EXPOSURE IN SPACE AND TIME [PDF]
The 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
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Ambient Noise Levels in Acute Neonatal Intensive Care Unit of a Tertiary Referral Hospital [PDF]
Journal 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
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Societal Impact of COVID-19 Crisis on the Ambient Seismic Noise in Metropolitan France
SeismicaThe 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
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Super-resolution DOA estimation based on sparse spectrum fitting
Dianzi 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
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Terrae 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
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AMBIENT SEISMIC NOISE FOOTPRINTS AND SPECTRA IN THE MIDDLE BENUE TROUGH, NIGERIA
Earth Science Malaysia, 2019 Ambient noise was analysed from a two-dimensional (2D) seismic data acquired in the Middle Benue Trough, Nigeria for the purpose of characterizing the ambient seismic noise.
Clifford N. C. Mbachi +5 more
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