Results 11 to 20 of about 3,306,688 (343)
Estimation of the power of geoacoustic emission sources registered in Mikizha Lake, Kamchatka region [PDF]
E3S Web of Conferences, 2019 A method for estimating the power of geoacoustic emission sources recorded by a combined hydroacoustic receiver in Mikizha lake (Kamchatka region) is proposed. The results of the method application at different stages of seismic activity are presented.
Shcherbina Albert, Solodchuk Alexandra
doaj +1 more source
Adaptive Approach to Time-Frequency Analysis of AE Signals of Rocks
Sensors, 2022 The paper describes a new adaptive approach to the investigation of acoustic emission of rocks, the anomalies of which may serve as short-term precursors of strong earthquakes. The basis of the approach is complex methods for monitoring acoustic emission
Olga Lukovenkova +2 more
doaj +1 more source
Solving the frequency-domain acoustic VTI wave equation using physics-informed neural networks
Geophysical Journal International, 2021 Frequency-domain wavefield solutions corresponding to the anisotropic acoustic wave equation can be used to describe the anisotropic nature of the Earth. To solve a frequency-domain wave equation, we often need to invert the impedance matrix.
Chao Song, T. Alkhalifah, U. Waheed
semanticscholar +1 more source
Complex analysis of pre-seismic geoacoustic and electromagnetic emission signals [PDF]
E3S Web of Conferences, 2019 The article describes the results of complex analysis of pre-seismic signals of electromagnetic and geoacoustic radiation. We analyzed the frequency content of single sferics and geoacoustic impulses recorded before the Zhupanov earthquake that occurred ...
Lukovenkova Olga +3 more
doaj +1 more source
Materials, Design, and Characteristics of Bulk Acoustic Wave Resonator: A Review
Micromachines, 2020 With the rapid commercialization of fifth generation (5G) technology in the world, the market demand for radio frequency (RF) filters continues to grow.
Yan Liu +5 more
semanticscholar +1 more source
Creation and control of multi-phonon Fock states in a bulk acoustic-wave resonator [PDF]
Nature, 2018 Quantum states of mechanical motion can be important resources for quantum information, metrology and studies of fundamental physics. Recent demonstrations of superconducting qubits coupled to acoustic resonators have opened up the possibility of ...
Y. Chu +5 more
semanticscholar +1 more source
Surface acoustic wave photonic devices in silicon on insulator [PDF]
Nature Communications, 2019 Opto-mechanical interactions in planar photonic integrated circuits draw great interest in basic research and applications. However, opto-mechanics is practically absent in the most technologically significant photonics platform: silicon on insulator ...
Dvir Munk +8 more
semanticscholar +1 more source
Applied Sciences, 2023 Tire acoustic cavity resonance noise (TACRN) contributes significantly to the interior noise of electric cars and passenger cars with lower powertrain noise, which affects the comfort of the ride.
Xiaojun Hu +3 more
doaj +1 more source
Nonreciprocal surface acoustic wave propagation via magneto-rotation coupling
Science Advances, 2020 Coupling of surface acoustic waves with anisotropic magnets demonstrates 100% nonreciprocity. A fundamental form of magnon-phonon interaction is an intrinsic property of magnetic materials, the “magnetoelastic coupling.” This form of interaction has been
Mingran Xu +9 more
semanticscholar +1 more source
Auto clustering of the variety of pulse signals based on their symbolic description [PDF]
E3S Web of Conferences, 2019 In a number of applied studies of geophysics, medicine, cosmophysics, atomic physics and other fields of knowledge, useful information is often hidden in the character of the behavior of a stream of frequency modulated pulses, which are represented by a ...
Senkevich Yury
doaj +1 more source