Results 41 to 50 of about 1,204,933 (307)

A Low Frequency Oscillator [PDF]

open access: yesNature, 1925
IT may be of interest to readers of NATURE who are working with low frequency to know of a new form of oscillator.
openaire   +1 more source

LOW-FREQUENCY SWASH OSCILLATION

open access: yesDoboku Gakkai Ronbunshu, 1993
Swash oscillation の周期は入射波のそれに比べて長くなることが知られている. こうした swash oscillation の長周期化を水理実験および有限振幅長波理論に基づく数値モデルにより検討し, 長周期波のほかに, swash zone での寄せ波と引き波の時系列に依存する追い付き・合体・吸収といった相互干渉によっても長周期の swash oscillation が形成されることを示した.
Hajime MASE, Nobuhisa KOBAYASHI
openaire   +2 more sources

An Adaptive TLS-ESPRIT Algorithm Based on an S-G Filter for Analysis of Low Frequency Oscillation in Wide Area Measurement Systems

open access: yesIEEE Access, 2019
In this paper, a two-stage mode identification algorithm including preprocessing and identification steps is introduced to solve the problems of measuring noise and inaccurate mode identification in the analysis of low-frequency oscillation (LFO) in a ...
Jian Chen   +3 more
semanticscholar   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Improvement of the low frequency oscillation model for Hall thrusters

open access: yesAIP Advances, 2016
The low frequency oscillation of the discharge current in Hall thrusters is a major aspect of these devices that requires further study. While the existing model captures the ionization mechanism of the low frequency oscillation, it unfortunately fails ...
Chunsheng Wang, Huashan Wang
doaj   +1 more source

Optimization on the Control Mode of Thermal Power Unit to Suppress Low Frequency Oscillation of Power System

open access: yesZhongguo dianli, 2020
Due to the randomness of its occurrence in power system, currently there is no effective way to suppress the low frequency oscillations through the existing thermal control modes of generation units.
Bao ZHANG   +4 more
doaj   +1 more source

Low-frequency oscillations in coupled phase oscillators with inertia

open access: yesScientific Reports, 2019
AbstractThis work considers a second-order Kuramoto oscillator network periodically driven at one node to model low-frequency forced oscillations in power grids. The phase fluctuation magnitude at each node and the disturbance propagation in the network are numerically analyzed.
Song, Huihui   +3 more
openaire   +2 more sources

LOW-FREQUENCY OSCILLATIONS IN XTE J1550–564 [PDF]

open access: yesThe Astrophysical Journal, 2010
7 pages, 9 figures, accepted for publication in The Astrophysical ...
Rao, Fengyun   +4 more
openaire   +2 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

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