Results 31 to 40 of about 85,823 (304)
On the Statistics of Ambient Noise [PDF]
The Journal of the Acoustical Society of America, 1967 The statistics of ambient noise have been investigated previously for single receivers [A. H. Green, Bell Lab. Tech. Rept. No. 10, (1962)], but no studies were made for ambient noise with arrays. Data are presented for ambient noise measured with 30- to 60-element arrays. Amplitude samples of ambient noise were taken at 30-msec intervals. The period is
Elizabeth M. Arase, T. Arase
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Endangered 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
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Survey of ambient noise in aquariums. [PDF]
The Journal of the Acoustical Society of America, 2010 Owning and maintaining an aquarium is a common hobby, but the ambient noise in aquariums resulting from pumps, filters, bubblers, and other equipment is not well studied. Elevated ambient noise levels have been shown to adversely affect wild fish and marine invertebrates, and anecdotal evidence suggests that this may be a problem in aquariums as well ...
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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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Vessel noise affects beaked whale behavior : results of a dedicated acoustic response study [PDF]
, 2012 © The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PLoS ONE 7 (2012): e42535, doi:10.1371/journal.pone.0042535.Some beaked whale species are ...
Quick, Nicola +30 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 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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Comparing ambient-noise-based seismic velocity variations with dynamic and static strain changes associated with major earthquake rupture at Parkfield [PDF]
, 2023 Stress perturbations across a fault zone can change seismic wave velocity in the adjacent area, with implications for rock properties and fault mechanics.
Li, Haoyu
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