Results 31 to 40 of about 4,692 (210)
Atmosphere, 2021 Every day, about one thousand thunderstorms occur around the world, producing about 45 lightning flashes per second. One prominent infrasound station of the International Monitoring System infrasound network of the Comprehensive Nuclear-Test-Ban Treaty ...
Thomas Farges +5 more
doaj +1 more source
Infrasound as a Cue for Seabird Navigation
Frontiers in Ecology and Evolution, 2021 Seabirds are amongst the most mobile of all animal species and spend large amounts of their lives at sea. They cross vast areas of ocean that appear superficially featureless, and our understanding of the mechanisms that they use for navigation remains ...
Samantha C. Patrick +25 more
doaj +1 more source
Acoustic Rocket Signatures Collected by Smartphones
SignalsRockets generate complex acoustic signatures that can be detected over a thousand kilometers from their source. While many far-field acoustic rocket signatures have been collected and released to the public, very few signatures collected at distances ...
Sarah K. Popenhagen, Milton A. Garcés
doaj +1 more source
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
Study on precursory characteristics of granite failure based on infrasonic energy
Results in Physics, 2017 To study signal characteristics of precursory infrasound of granite failure, coal-rock stress loading device and infrasound acquisition device were adopted to perform infrasound test in uniaxial loading process for granite samples.
Jian-ping Wei +3 more
doaj +1 more source
Effects of infrasound on the perception of a low-frequency sound
Acta Acustica, 2023 The study investigated the effects of an 8 Hz infrasound sinusoid, presented at a sensation level (SL) of 9 decibels (dB), on the detection of i) a 64 Hz pure tone and ii) an 8 Hz sinusoidal amplitude modulation imposed on a 64 Hz sinusoidal carrier ...
Friedrich Björn +3 more
doaj +1 more source
地质科技通报Objective Infrasound is an effective approach for debris flow warning. Traditional threshold-based warning methods focus solely on individual infrasound characteristics, which can lead to false alarms or missed detections.
Jiashuo YU +8 more
doaj +1 more source
Annoyance of Audible Infrasound [PDF]
Journal of Low Frequency Noise, Vibration and Active Control, 1987 Contours of equal annoyance were determined for pure tones in the frequency range 4 – 31.5 Hz. The curves show a narrowing of the dynamic range of the ear at low frequencies. The same pattern is seen for equal loudness curves, and the results support the theory that the annoyance of infrasound is closely related to the loudness sensation.
openaire +1 more source
An Easy Method to Sample Headspace Pheromones in the Field
Ethology, EarlyView.Females of the orb‐web spider Argiope bruennichi produces a pheromone to attract males for mating. Most of our knowledge about the pheromone and its strategical use by the females is known from the laboratory. While we have confidence in the validity of these results, we wanted to make sure and measure pheromones in the field.
Zoe Dössel +2 more
wiley +1 more source
Remote Sensing, 2023 Due to the inability of remote sensing satellites to monitor avalanches in real time, this study focuses on the glaciers in the rear edge of Jialongcuo, Tibet, and uses infrasound sensors to conduct real-time monitoring of ice avalanches.
Yifang Zhang +10 more
doaj +1 more source