Results 41 to 50 of about 4,509 (183)
Optical Observations of Meteors Generating Infrasound - I: Acoustic Signal Identification and Phenomenology [PDF]
, 2014 We analyze infrasound signals from 71 bright meteors simultaneously detected by video to investigate the phenomenology and characteristics of meteor-generated near-field infrasound and shock production. A taxonomy for meteor generated infrasound signal classification has been developed using the time-pressure signal of the infrasound arrivals. Based on
arxiv +1 more source
Review of synergic meteor observations: linking the results from cameras, ionosondes, infrasound and seismic detectors [PDF]
, 2021 Joint evaluation of different meteor observation types support the better understanding of both the meteor phenomenon and the terrestrial atmosphere. Two types of examples are presented in this work, linking ionospheric effects to specific meteors, where almost one third of the meteors emerged at high altitudes were simultaneously recorded with an ...
arxiv +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
Back-Azimuth Estimation of Air-to-Ground Coupled Infrasound from Transverse Coherence Minimization
The Seismic Record, 2023 We present the transverse coherence minimization method (TCM)—an approach to estimate the back-azimuth of infrasound signals that are recorded on an infrasound microphone and a colocated three-component seismometer.
Jordan W. Bishop +5 more
doaj +1 more source
Refinement of Bolide Characteristics from Infrasound measurements [PDF]
, 2017 We have detected and performed signal measurements on 78 individual bolide events as recorded at 179 infrasound stations between 2006 and 2015. We compared period-yield relations with AFTAC nuclear period-yield data, finding these to be similar with a slight offset.
arxiv +1 more source
Study on Optimization of Infrasound Filtering Method for Coal Sample Failure under Load
Frontiers in Earth Science, 2022 Effective filtering of the infrasound signal generated by coal samples is the basis for realizing the prediction of the infrasound of coal sample damage.
Jianguo Zhang +4 more
doaj +1 more source
Demultiplexing infrasound phonons with tunable magnetic lattices [PDF]
, 2020 Controlling infrasound signals is crucial to many processes ranging from predicting atmospheric events and seismic activities to sensing nuclear detonations. These waves can be manipulated through phononic crystals and acoustic metamaterials. However, at such ultra-low frequencies, the size (usually on the order of meters) and the mass (usually on the ...
arxiv +1 more source
Early synapsids neurosensory diversity revealed by CT and synchrotron scanning
The Anatomical Record, EarlyView.Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit +6 more
wiley +1 more source
INFRASOUND WAVE GENERATED BY THE TUNGUSKA CELESTIAL BODY: AMPLITUDE DEPENDENCE ON DISTANCE
Radio Physics and Radio Astronomy, 2018 Purpose: The study is concerned with the features of variations in the amplitude of infrasound wave propagating through the terrestrial atmosphere at global-scale distances.
L. F. Chernogor, N. B. Shevelev
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Animal vocalizations encode rich biological information, making bioacoustic analysis a valuable non‐invasive tool for assessing animal welfare and population dynamics. However, traditional methods relying on manual feature selection are labour‐intensive, subjective and lack scalability for the large datasets generated by passive acoustic monitoring ...
Alastair Pickering +3 more
wiley +1 more source