Results 21 to 30 of about 18,047 (294)
Progress in Biophysics and Molecular Biology, 2007 Definitions of infrasound and low-frequency noise are discussed and the fuzzy boundary between them described. Infrasound, in its popular definition as sound below a frequency of 20 Hz, is clearly audible, the hearing threshold having been measured down to 1.5 Hz. The popular concept that sound below 20 Hz is inaudible is not correct.
exaly +3 more sources
Quantized Information in Spectral Cyberspace
Entropy, 2023 The constant-Q Gabor atom is developed for spectral power, information, and uncertainty quantification from time–frequency representations. Stable multiresolution spectral entropy algorithms are constructed with continuous wavelet and Stockwell ...
Milton A. Garcés
doaj +1 more source
Uncertainty Quantification for Infrasound Propagation in the Atmospheric Environment
Applied Sciences, 2022 The propagation of infrasound in the atmosphere is influenced by atmospheric environmental parameters, which affect the precise localization of the infrasound source. Therefore, it has become crucial to quantify the influence of atmospheric environmental
Liang Yu +5 more
doaj +1 more source
Remote Sensing, 2023 In recent years, high-altitude infrasound sensing has become more prolific, demonstrating an enormous value especially when utilized over regions inaccessible to traditional ground-based sensing.
E. Silber +2 more
semanticscholar +1 more source
Autocorrelation Infrasound Interferometry
Journal of Geophysical Research: Solid Earth, 2021 AbstractSeismic and infrasound multistation ambient‐noise interferometry has been widely used to infer ground and atmospheric properties, and single‐station and autocorrelation seismic interferometry has also shown potential for characterizing Earth structure at multiple scales.
Hugo D. Ortiz +5 more
openaire +4 more sources
Geophysical Research Letters, 2023 A helium‐filled mylar balloon carrying a smartphone and infrasound sensors ascended to a stratospheric height of 35 km over the surface detonation of a chemical explosive, with a total acoustic propagation distance of 127 km.
S. K. Popenhagen +3 more
doaj +1 more source
Can Environmental Enrichment Mitigate Cell Apoptosis in the Central Nervous System Under Adverse Health Conditions? A Systematic Review. [PDF]
Clin Transl SciABSTRACT To summarize the available evidence in the literature regarding the effects of exposure to an enriched environment (EE) on the modulation of apoptotic markers in central tissue of rodents under unfavorable conditions. Searches were conducted in three databases: PubMed/Medline (70 articles), Scopus (65 articles), and EMBASE (128 articles), all ...
de Sousa Fernandes MS +7 more
europepmc +2 more sources
Remote Sensing, 2023 A three-microphone acoustic array (OSU1), with microphones that have a flat response from 0.1 to 200 Hz, was deployed for 6 years (2016–2022) at Oklahoma State University (OSU) in Stillwater, Oklahoma, and sampled at 1000 Hz.
Trevor C. Wilson, C. Petrin, B. Elbing
semanticscholar +1 more source
Probing Gravity Waves in the Middle Atmosphere Using Infrasound From Explosions
Journal of Geophysical Research: Atmospheres, 2023 This study uses low‐frequency, inaudible acoustic waves (infrasound) to probe wind and temperature fluctuations associated with breaking gravity waves (GWs) in the middle atmosphere.
Ekaterina Vorobeva +5 more
semanticscholar +1 more source
Infrasound and seismoacoustic signatures of the 28 September 2018 Sulawesi super-shear earthquake [PDF]
Natural Hazards and Earth System Sciences, 2019 A magnitude 7.5 earthquake occurred on 28 September 2018 at 10:02:43 UTC near the city of Palu on the Indonesian island of Sulawesi. It was a shallow, strike-slip earthquake with a rupture extending to a length of about 150 km and reaching ...
C. Pilger +7 more
doaj +1 more source