Results 31 to 40 of about 2,219 (213)
Photonics, 2023 Operation modes of the optoelectronic oscillator (OEO), based on a phase electrooptic modulator with an acetylene reference cell as a photonic filter, have been investigated.
Vladimir Lebedev +8 more
doaj +1 more source
Bistable metamaterial for switching and cascading elastic vibrations [PDF]
, 2017 The realization of acoustic devices analogous to electronic systems, like diodes, transistors, and logic elements, suggests the potential use of elastic vibrations (i.e., phonons) in information processing, for example, in advanced computational systems,
Bilal, Osama R. +2 more
core +2 more sources
Identification of avalanche precursors by acoustic probing in the bulk of tilted granular layers [PDF]
, 2013 International audienceUnderstanding the precursors of granular avalanches is important for the prediction of critical events. As part of the dynamics leading to the avalanche, precursors are identified as collective motions of grains on the free surface.
Delannay, Renaud +4 more
core +3 more sources
Shock and Vibration, 2015 When a local defect occurs in gearbox, the vibration signals present as the form of multicomponent amplitude modulation and frequency modulation (AM-FM). Demodulation analysis is an effective way for this kind of signal.
Songrong Luo +2 more
doaj +1 more source
Self-Mixing Demodulation for Coherent Phase-Sensitive OTDR System
Sensors, 2016 Phase-sensitive optical time domain reflectometry (Ф-OTDR) attracts much attention due to its capability of telling the type and position of an intrusion simultaneously.
Haijun He +7 more
doaj +1 more source
Stable propogation of mechanical signals in soft media using stored elastic energy [PDF]
, 2016 Soft structures with rationally designed architectures capable of large, nonlinear deformation present opportunities for unprecedented, highly tunable devices and machines.
Bertoldi, Katia +5 more
core +3 more sources
Self-reference shot-noise-limited phase demodulator with 1530 nm acetylene absorption line
Results in Optics, 2022 We report results on characterization of the self-reference interferometric configuration based on quantum memory of the acetylene (12C2H2) molecules at the wavelength of 1530.37 nm of the vibrational–rotational P9 absorption line.
J. Diaz +7 more
doaj +1 more source
Ultrasonic Neuromodulation Causes Widespread Cortical Activation via an Indirect Auditory Mechanism [PDF]
, 2018 Ultrasound has received widespread attention as an emerging technology for targeted, non-invasive neuromodulation based on its ability to evoke electrophysiological and motor responses in animals. However, little is known about the spatiotemporal pattern
Sato, Tomokazu +2 more
core +2 more sources
Applied Sciences, 2020 In this paper, a novel high-sensitivity temperature sensor with two sensing regions based on optical microfiber coupler interferometer (OMCI) for ocean application is proposed. The OMCI sensor is constructed by connecting Faraday mirrors to the two ports
Lingjun Zhou +8 more
doaj +1 more source
Frequency filtering in disordered granular chains [PDF]
, 2014 The study of disorder-induced frequency filtering is presented for one-dimensional systems composed of random, pre-stressed masses interacting through both linear and nonlinear (Hertzian) repulsive forces.
Lawney, Brian P., Luding, Stefan
core +3 more sources