Results 61 to 70 of about 16,386 (293)
Probing Gravity Waves in the Middle Atmosphere Using Infrasound From Explosions [PDF]
, 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.
Assink, Jelle +5 more
core +1 more source
Infrasound measurement system for real-time in situ tornado measurements
Atmospheric Measurement Techniques, 2022 . Previous work suggests that acoustic waves at frequencies below human hearing (infrasound) are produced during tornadogenesis and continue through the life of a tornado, which have potential to locate and profile tornadic events and provide a range of ...
Brandon C. White +2 more
semanticscholar +1 more source
Estimating tropospheric and stratospheric winds using infrasound from explosions [PDF]
The Journal of the Acoustical Society of America 146:2, 973-982, 7
August 2019, 2019 The receiver-to-source backazimuth of atmospheric infrasound signals is biased when cross-winds are present along the propagation path. Infrasound from 598 surface explosions from over 30 years in northern Finland is measured with high spatial resolution on an array 178 km almost due North.
arxiv +1 more source
Frontiers in Earth Science, 2021 Infrasound data are routinely used to detect and locate volcanic and other explosions, using both arrays and single sensor networks. However, at local distances (
D. Fee +9 more
semanticscholar +1 more source
Inhibitory effects of low decibel infrasound on the cardiac fibroblasts and the involved mechanism
Noise and Health, 2017 Introduction: Infrasound is a mechanical vibration wave with frequency between 0.0001 and 20 Hz. It has been established that infrasound of 120 dB or stronger is dangerous to humans.
Wei Jin +8 more
doaj +1 more source
Infrasound of a Wind Turbine Reanalyzed as Power Spectrum and Power Spectral Density [PDF]
, 2021 The infrasound levels due to the blade-tower interaction generated by a wind turbine in the publication by Pilger and Ceranna (JSV, Vol. 388, pp. 188-200, 2017) have to be corrected to be interpreted as sound pressure level. Also, the electrical power of the wind turbine should be corrected for the high wind case to 660 kW.
arxiv +1 more source
Graphene Aerogels for Ultrabroadband Thermoacoustics [PDF]
Phys. Rev. Applied 14, 024022 (2020), 2020 Sound is usually generated in a medium by an electromechanical vibrating structure. The geometrical size and inertia of the structure set the frequency cutoff in the sound-transduction mechanism and, often, different vibrating structures are necessary to cover the whole range from infrasound to ultrasound.
arxiv +1 more source
Spectral integration of infrasound at threshold [PDF]
The Journal of the Acoustical Society of America, 2020 The present study investigated the effect of the number of spectral components on the threshold in quiet of infrasound stimuli. Stimuli with one, two, or three sinusoidal components were presented monaurally to the ear with a low-distortion infrasound reproduction system.
Jesko L. Verhey +3 more
openaire +3 more sources
Mechanical Filter-Based Differential Pressure Fiber-Optic Fabry-Perot Infrasound Sensor
IEEE Photonics Journal, 2021 A differential pressure fiber optic infrasound sensor based on a mechanical filter was developed, for the detection of infrasound within the frequency range of 0.01--1 Hz.
Peng Zhang +9 more
doaj +1 more source
Volcanica, 2021 Lahars are one of the greatest hazards at many volcanoes, including Volcán de Fuego (Guatemala). On 1 December 2018 at 8:00pm local Guatemala time (2:00:00 UTC), an hour-long lahar event was detected at Volcán de Fuego by two permanent seismo-acoustic ...
A. Bosa +6 more
semanticscholar +1 more source