Resub: resonant energy transfer in symmetric systems with vastly different eigenfrequencies
Sign Up to like & getrecommendations! Published in 2025 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-024-10748-y
Abstract: In light of a new dynamical interpretation and accompanying analysis, we consider symmetric systems in which energy transfers from a resonantly driven high-frequency mode to an undriven low-frequency mode. The behavior of interest stems from… read more here.
Keywords: energy; symmetric systems; frequency mode; low frequency ... See more keywords
Longitudinal electron waves and instability of collisional plasma formed by multiphoton ionization of gas atoms
Sign Up to like & getrecommendations! Published in 2020 at "Physics of Plasmas"
DOI: 10.1063/5.0023518
Abstract: Longitudinal collective modes in plasma produced by multiphoton ionization of inert gas atoms are studied. The high-frequency and the low-frequency modes in Xe plasma are considered in detail. It is shown that due to the… read more here.
Keywords: high frequency; electron langmuir; frequency; frequency mode ... See more keywords
Modified central frequency mode decomposition for the fault diagnosis of rotating machinery
Sign Up to like & getrecommendations! Published in 2024 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/ad7620
Abstract: Central frequency mode decomposition (CFMD) is a promising tool for complex mechanical signal processing. Some characteristics of CFMD are disclosed by performing a detailed discussion on its decomposing theory in this study. As a result,… read more here.
Keywords: central frequency; diagnosis; fault diagnosis; frequency mode ... See more keywords
Hybrid simulation of fishbone instabilities in the EAST tokamak
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/aa7f9c
Abstract: Hybrid simulations with the global kinetic-magnetohydrodynamic (MHD) code M3D-K have been carried out to investigate the linear stability and nonlinear dynamics of beam-driven fishbone in the experimental advanced superconducting tokamak (EAST) experiment. Linear simulations show… read more here.
Keywords: mode; frequency; frequency mode; fishbone ... See more keywords
Spectroscopic frequency and mode identification of γ Doradus stars HD 109799 and HD 103257
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab1972
Abstract: Following frequency and mode identification of two candidate γ Doradus stars, HD 103257 and HD 109799, both can be categorized as bona-fide members of the class. Over 250 high-resolution spectra of the two stars were collected at University… read more here.
Keywords: frequency; doradus stars; frequency mode; mode identification ... See more keywords
Phase Estimation of Single Tones Next to Modulated Signals in the Medium Frequency R-Mode System
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3190544
Abstract: Position, navigation, and timing information are critical to today’s infrastructures; as a result, the possibility of estimating ranges is being explored in more and more radio systems. One way to achieve this is to extend… read more here.
Keywords: phase estimation; medium frequency; phase; estimation ... See more keywords
Versatile Optoelectronic Oscillator for Single-Frequency, Dual-Frequency, and Mode-Locking Oscillation
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2025.3558773
Abstract: We demonstrate a versatile optoelectronic oscillator (OEO) that can seamlessly switch between single-frequency, dual-frequency, and mode-locking oscillation modes. The OEO operates by shaping the spectrum of an ASE (Amplified Spontaneous Emission) source into a cosine… read more here.
Keywords: single frequency; dual frequency; mode locking; frequency mode ... See more keywords
Utility of high-frequency B-mode and contrast-enhanced ultrasound for the differential diagnosis of benign and malignant pleural diseases: a prospective study
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Thoracic Disease"
DOI: 10.21037/jtd-22-636
Abstract: Background Pleural disease is a prevalent condition. As precision therapy advances, noninvasive imaging modalities play even more important roles in the evaluation of pleural diseases. This study investigated the diagnostic capabilities of high-frequency B-mode ultrasound… read more here.
Keywords: high frequency; frequency; benign malignant; pleural diseases ... See more keywords
Frequency-Mode Study of Piezoelectric Devices for Non-Invasive Optical Activation
Sign Up to like & getrecommendations! Published in 2025 at "Nanomaterials"
DOI: 10.3390/nano15211650
Abstract: Piezoelectric materials are fundamental elements in modern science and technology due to their unique ability to convert mechanical and electrical energy bidirectionally. They are widely employed in sensors, actuators, and energy-harvesting systems. In this work,… read more here.
Keywords: spectroscopy; impedance; activation; frequency mode ... See more keywords