Results 301 to 310 of about 14,764,212 (352)
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International Journal of Ambient Energy, 2020
The research paper addresses a robust tilt fuzzy cascade (TDF(1+TI)) controller for frequency regulation of an islanded AC microgrid under different uncertainties.
P. Sahu +3 more
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The research paper addresses a robust tilt fuzzy cascade (TDF(1+TI)) controller for frequency regulation of an islanded AC microgrid under different uncertainties.
P. Sahu +3 more
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Stability in phonational frequency range
Journal of Communication Disorders, 1989The purpose of the present study was to investigate the stability of total phonational frequency range, and the stability of the elements from which it is calculated--lowest fundamental frequency and highest fundamental frequency--both within a single day and over a prolonged period.
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The Stabilization of the Frequency of a Klystron
IETE Journal of Research, 1968ABSTRACTA modified Pound stabilization system for the automatic frequency control of a klystron has been described. The stability of frequency obtained is 5 parts in 107 which may be considered to be sufficient for the microwave generators used for the purpose of voice communication and in the field of electron spin resonance spectroscopy.
A. K. Roy, R. Roy
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Frequency and polarization effects in stabilization
Physical Review A, 1992Quantitative results are presented for stabilization of atoms against ionization by strong laser fields over a wide range of frequencies for circular and linear polarization. With circular polarization, stabilization occurs for all frequencies. At high frequency (ω>1 a.u.), the stabilization intensity is predicted by the occurrence of photon thresholds.
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Frequency dependence and stability
Mathematical Biosciences, 1976Abstract The use of difference equations is suggested for simulating frequency-dependent changes in gene frequencies. Our model shows a good fit to published cases of populations in which gene frequencies reached stable equilibrium. However, in the same deterministic model, slight changes in the value of some parameters can lead to cyclic or chaotic ...
Raveh, Adi, Ritte, Uzi
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IEEE Transactions on Smart Grid, 2019
This paper develops a controlled network partitioning model to improve power grid resilience under catastrophic events. The proposed remedial scheme relies on a mixed integer linear programming formulation which aims at minimizing the overall load ...
Farhad Teymouri +3 more
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This paper develops a controlled network partitioning model to improve power grid resilience under catastrophic events. The proposed remedial scheme relies on a mixed integer linear programming formulation which aims at minimizing the overall load ...
Farhad Teymouri +3 more
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, 2020
Designing a well-performing and practical dielectric capacitor is a valuable but challenging theme in contemporary electrical devices. Dielectric capacitors rely on a high energy density and outstanding energy efficiency, which are difficult to achieve ...
Junpeng Shi +8 more
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Designing a well-performing and practical dielectric capacitor is a valuable but challenging theme in contemporary electrical devices. Dielectric capacitors rely on a high energy density and outstanding energy efficiency, which are difficult to achieve ...
Junpeng Shi +8 more
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Characterization of the Frequency Stability of a Multibranch Optical Frequency Comb
IEEE Transactions on Instrumentation and Measurement, 2020Presently, ultra-precise optical clocks’ comparisons can be performed easily using the optical frequency combs (OFCs) as a transfer oscillator. In this scheme, different OFC branches are usually used to enable optical clocks’ comparison at different wavelengths.
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Start-up and frequency stability in high-frequency oscillators
IEEE Journal of Solid-State Circuits, 1992Start-up criteria in harmonic oscillators are explored. Conventional criteria for start-up prediction are shown to be necessary but not always sufficient for high-frequency oscillators, due to the effects of parasitic elements. Design methods are derived to allow design of reliable oscillators with a well-defined frequency of oscillation. The theory is
Nhat M. Nguyen, Robert G. Meyer
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A Stabilized Frequency Divider
Proceedings of the IRE, 1941A method is described for stabilizing the frequency of a relaxation oscillator to any required degree. The stabilized oscillator may be synchronized with a high-order submultiple of a control frequency without any possibility of synchronization at any other submultiple, even if the operating conditions vary widely; the maintenance of synchronization ...
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