Articles with "frequency high" as a keyword



On the Morison hydrodynamic forces on perforated flat plates in combined steady, low frequency and high frequency motion

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Published in 2018 at "Journal of Fluids and Structures"

DOI: 10.1016/j.jfluidstructs.2018.05.013

Abstract: Abstract This paper aims to model the hydrodynamic forces on grids of perforated flat plates undergoing forced motions at three scales, namely steady (current), and combined low (wave) frequency and high (structural) frequency oscillatory motion.… read more here.

Keywords: flat plates; frequency high; frequency; velocity ... See more keywords

High-frequency and high-amplitude sounds enhance bird deterrence

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-13737-2

Abstract: Given the widespread conflicts between humans and birds in contexts such as agricultural production, airports, and new energy installations, the development and application of bird deterrence technologies hold significant importance for both safeguarding human interests… read more here.

Keywords: frequency; deterrence; bird deterrence; frequency high ... See more keywords

A Dual-Frequency High-Power Microwave Generator

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Published in 2019 at "IEEE Transactions on Plasma Science"

DOI: 10.1109/tps.2019.2932039

Abstract: We propose a novel dual-frequency high-power microwave generator consisting of both an axial generator and a radial one stretching from the middle of the tube head of the former. As a high-voltage pulse is injected… read more here.

Keywords: high power; dual frequency; generator; power microwave ... See more keywords

Single-frequency high-energy pulses from an Er:Yb glass planar waveguide amplifier with good beam quality

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Published in 2024 at "Applied Physics Express"

DOI: 10.35848/1882-0786/ad3a2e

Abstract: We demonstrate a master oscillator power amplifier system that emits single-frequency, high-energy optical pulses at 1539 nm using an Er, Yb:glass planar waveguide amplifier with a normalized frequency of the waveguide of 4.4. A maximum… read more here.

Keywords: high energy; single frequency; planar waveguide; frequency high ... See more keywords