Results 261 to 270 of about 186,401 (311)
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Angle, Voltage, and Frequency Stability
2008info:eu-repo/semantics ...
Cañizares, Claudio +2 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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Optical frequency stabilization with a synchronous frequency-to-voltage converter
Applied Optics, 2019Between a frequency comb mode and a continuous-wave (cw) laser, we demonstrate that a frequency-to-voltage converter can be used to transfer frequency instability in the 10-14 range for integration times τ between 0.25 and 2100 s. The technique is relevant when the optical beat between laser signals is weak and a high level of frequency stability is ...
F. C. Reynolds, J. J. McFerran
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13th Annual Symposium on Frequency Control, 1959
The frequency stability of an ammonia maser is ordinarily quite high for per iods of a few minutes. However, to preserve this stability for long periods of t ime hours and days requi res ra ther carefu l cont ro l of the pa rame te r s of the system which affect the frequency in par t icular the pressure, focuser voltage and cavity temperature. We have
J.S. Barnes, R. Mockler
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The frequency stability of an ammonia maser is ordinarily quite high for per iods of a few minutes. However, to preserve this stability for long periods of t ime hours and days requi res ra ther carefu l cont ro l of the pa rame te r s of the system which affect the frequency in par t icular the pressure, focuser voltage and cavity temperature. We have
J.S. Barnes, R. Mockler
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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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Stabilizing the low frequencies
The Leading Edge, 2007Acoustic and elastic impedance sections have two main uses. Firstly, they “look more like geology” than traditional reflectivity data, and enable us to better communicate the subsurface images to our non-geoscientist colleagues (e.g., reservoir engineers and drillers).
Dave Whitcombe, Linda Hodgson
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Oscillator Frequency Stability
1978The term frequency stability is a generic term which means a variety of things to different people depending on their individual interests. In its broadest concept, it means the degree of constancy of the frequency of an oscillator under a particular set of conditions.
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