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Threat of low-frequency high-intensity floods to global cropland and crop yields
Flood hazards pose a significant threat to agricultural production. Agricultural adaptations tend to be prevalent and systematic in high-frequency...
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A low-frequency FBG accelerometer based on dual mass
The accurate measurement of low-frequency signal is the main research focus at present. Aiming at the problem that FBG accelerometer is difficult to...
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Study on the Influence of Low-Frequency Electromagnetic Field on the Absorption Rate of Al2O3 Inclusion in Low Reactivity Mold Flux
With the wide application of electromagnetic stirring in continuous casting and the rapid development of low reactive mold fluxMold flux, the effect...
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Recent Advancements in Helmholtz Resonator Based Low-Frequency Acoustic Absorbers: A Critical Review
Helmholtz resonator (HR) is an elementary resonating structure predominantly used for acoustic wave manipulation. The sound absorption capabilities...
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Low frequency oscillations reflect neurovascular coupling and disappear after cerebral death
Spectrum power analysis in the low frequency oscillations (LFO) region of functional near infrared spectroscopy (fNIRS) is a promising method to...
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Analytical Characterization of Low-Frequency Instabilities in a Simple Duct System
Low-frequency bulk instabilities are prevalent phenomena encountered in various combustion systems including laminar burners, gas turbine combustors,...
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Ultra-Low-Frequency Vibration Attenuation Characteristics of Multi-Span Metamaterial Dual-Beam Structures
AbstractIn this work, a novel multi-span metamaterial dual-beam (MMDB) structure is proposed for the effective suppression of ultra-low-frequency...
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A Pulsed Low-Frequency Physiotherapy Device
The results of experimental studies and medical trials of INFITA-M, a pulsed low-frequency physiotherapy device, are presented. The INFITA-M device...
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Stacked multi-wedge acoustic black holes for low-frequency attenuation of flexible beams
AbstractMachines and other driving components like compressors or fans usually generate vibrations which frequently lead to acoustic noise. Flexible...
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Study on Surface Active Bubble Dynamics Properties under Strong Low-Frequency Sound Waves
This paper delves into the dynamics of surface-active bubbles under low-frequency acoustic waves, with a focus on the stability effect and basic...
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Branches of Resonant Ultra-Low-Frequency Absorption in the Earth’s Magnetosphere
AbstractDoppler observations of the auroral electrojet monitored by the Norwegian STARE radar during one solar rotation preceding a strong magnetic...
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Optimized low switching frequency modulation with neutral point voltage control for three-level converters
The use of three-level converters with low switching frequency (SF) modulation is urgently needed for medium voltage high power applications....
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Low-Frequency Noise Control in Ducts
Low-frequency noise control is one of the key challenges in acoustics. Helmholtz resonators can attenuate the sound at the desired frequency, but...
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A high-performance electromagnetic energy harvester for scavenging ultra-low frequency vibration energy of human foot movement
In our daily lives, low-frequency kinetic energy primarily manifests as vibrations. However, effective harnessing of low-frequency kinetic energy...
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Comparative study of permeation effects between vibrating microneedle and low-frequency sonophoresis systems
Microneedle transdermal administration and low-frequency ultrasound represent two important physical penetration-promoting methods for enhancing drug...
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Analysis of Low-Frequency Sound Insulation Characteristics of Simply Supported Locally Resonant Plate
Thin plate is a typical key structure of various transportation vehicles such as airplanes and high-speed trains. The sound insulation performance of...
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Low-Frequency Aware Unsupervised Detection of Dark Jargon Phrases on Social Platforms
With the development of the Internet, the number of people communicating on social platforms has soared, which means that it is crucial for platform...
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A Low Order Equivalent Matching Method for Mixing Time-Domain and Frequency-Domain Parameter Identification
The low order equivalent matching method is one of the important means to study the flight quality of complex high-order aircraft models. Low order...
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Design and Research of Triboelectric Energy Harvester for Low Frequency Nonlinear Vibration
Although great progress has been made in the study of triboelectric energy harvesting, most of the efforts are aimed at the manufacturing and...
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A novel bio-inspired kangaroo leg structure for low-frequency vibration isolation
Inspired by the vibration mitigation effect of kangaroo’s legs, a novel bio-inspired kangaroo leg structure (BKLS) is proposed for low-frequency...
