Results 251 to 260 of about 10,690,197 (296)
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A compact, low‐frequency, memristor‐based oscillator
International Journal of Circuit Theory and Applications, 2014SummaryA relaxation oscillator using a memristor is hereby presented. The memristor is used to substitute the function of a capacitor in an equivalent RC oscillator. The voltage across the memristor changes according to the quantity and polarity of the current passing through, thus substituting the changing voltage across a capacitor in the equivalent ...
Kyriakides, Elias +3 more
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Real-time low-frequency oscillations monitoring
Journal of Renewable and Sustainable Energy, 2021A major concern for interconnected power grid systems is low-frequency oscillation, which limits the scalability and transmission capacity of power systems. Undamped or poorly damped oscillations will lead to undesirable conditions or even a catastrophic system blackout.
Bin Hu, Hamid Gharavi
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Low-Frequency Brain Oscillations in Schizophrenia
JAMA Psychiatry, 2016Understanding thebrainnetworks thatproduce thesymptomsof schizophrenia is a major goal of modern neuroscience. There is increasing evidence that brain function depends critically on oscillations, and ithas thereforebeenof interest todeterminewhether the oscillatorypropertiesof thebrain areabnormal in schizophrenicpatients.
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2017
Since the early 1970s and the early 1980s, the Madden-Julian Oscillation (MJO) in the tropics and some teleconnections in worldwide have respectively become two important topics in climate study. The former is moving low-frequency fluctuations while the latter is standing oscillations.
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Since the early 1970s and the early 1980s, the Madden-Julian Oscillation (MJO) in the tropics and some teleconnections in worldwide have respectively become two important topics in climate study. The former is moving low-frequency fluctuations while the latter is standing oscillations.
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Low frequency temperature forcing of chemical oscillations
Physical Chemistry Chemical Physics, 2011The low frequency forcing of chemical oscillations by temperature is investigated experimentally in the Belousov-Zhabotinsky (BZ) reaction and in simulations of the Oregonator model with Arrhenius temperature dependence of the rate constants. Forcing with temperature leads to modulation of the chemical frequency.
Jan, Novak +4 more
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Nonlinear analysis of low frequency Oscillations in gyrotrons
2009 IEEE International Conference on Plasma Science - Abstracts, 2009Summary form only given: Low frequency oscillations attributed to reflected electrons bouncing between the electron gun and the interaction space have been observed in many gyrotrons. A nonlinear model is considered which allows one to develop the theory based on PIC simulations and apply it to the analysis of these oscillations.
null Ran Yan +2 more
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Low-frequency, low-distortion digital quadrature oscillator
Journal of Physics E: Scientific Instruments, 1989Digital recursive and non-recursive filtering techniques have both been exploited to build a low-frequency (0.5-50 Hz), low-distortion digital quadrature oscillator. This generator shows an amplitude constant to within 0.3% over the frequency range, and the quadrature phase error is within +or-0.05 degrees .
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Weak low-frequency electromagnetic oscillations in water
Electromagnetic Biology and Medicine, 2016Recent observations of low-frequency electromagnetic oscillations in water suggest an inductive structural component. Accordingly, we assume a helical basis enabling us to model water as an LC tuned oscillator. A proposed tetrahedral structure consisting of three water molecules and one hydronium ion is incorporated into the Boerdijk-Coxeter tetrahelix
A R, Liboff +2 more
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Low Frequency Rotary Traveling Wave Oscillators
2018 IEEE International Symposium on Circuits and Systems (ISCAS), 2018A methodology is presented in order to automate the selection of a design style for low frequency operation of ultra low power rotary traveling wave oscillators (RTWOs). The methodology systemically analyzes the power dissipation profiles of design styles with two priori known resonant frequency dividers, a static and a dynamic frequency divider.
Ragh Kuttappa, Baris Taskin
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