Results 41 to 50 of about 79,031 (332)
Numerical investigation of the effect of crosswind on sound propagation outdoors [PDF]
, 2016 The effect of wind on sound propagation in the atmosphere has been studied extensively before with an emphasize on downwind sound propagation, typically representing worst-case scenarios.
Homikx, Maarten, Van Renterghem, Timothy
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AIP Advances, 2021 The structure of the sunflower head can be used to realize broadband applications in optics. However, this 2D structure, with a ring-shaped reciprocal space, only has a normalized Fourier coefficient peak around 0.033, which leads to a relatively low ...
Nian-Mu Wang, Huang Huang, Chao Zhang
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Reciprocity in reflection and transmission: what is a "phonon diode"?
, 2012 The newly popular topic of "phonon diodes" is discussed in the context of a broader issue of reciprocity in reflection/transmission (R-T) of waves. We first review a theorem well known in electromagnetism and optics but underappreciated in acoustics and ...
Every, A. G. +2 more
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Miniature photonic-crystal hydrophone optimized for ocean acoustics
, 2010 This work reports on an optical hydrophone that is insensitive to hydrostatic pressure, yet capable of measuring acoustic pressures as low as the background noise in the ocean in a frequency range of 1 Hz to 100 kHz.
Gordon S. Kino +7 more
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Topological Insulators by Topology Optimization [PDF]
, 2019 An acoustic topological insulator (TI) is synthesized using topology optimization, a free material inverse design method. The TI appears spontaneously from the optimization process without imposing requirements on the existence of pseudo spin-1/2 states ...
Christiansen, Rasmus E. +2 more
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Equivalent circuit models of two-layer flexure beams with excitation by temperature, humidity, pressure, piezoelectric or piezomagnetic interactions [PDF]
Journal of Sensors and Sensor Systems, 2014 Two-layer flexure beams often serve as basic transducers in actuators and sensors. In this paper a generalized description of their stimuli-influenced mechanical behavior is derived.
U. Marschner +3 more
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A review of the state of art in applying Biot theory to acoustic propagation through the bone [PDF]
, 2014 Understanding the propagation of acoustic waves through a liquid-perfused porous solid framework such as cancellous bone is an important pre-requisite to improve the diagnosis of osteoporosis by ultrasound.
Aygun, Haydar
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Coupling a Surface Acoustic Wave to an Electron Spin in Diamond via a Dark State
Physical Review X, 2016 The emerging field of quantum acoustics explores interactions between acoustic waves and artificial atoms and their applications in quantum information processing.
D. Andrew Golter +5 more
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Advanced Electronic Materials, 2023 Flexible artificial synapses, a conjunctive product of brain‐inspired neuromorphic computing and wearable electronics, arouse enormous interest in highly connected and energy‐efficient neural networks.
Chang Liu +11 more
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