Results 181 to 190 of about 303,051 (209)

Is the Local Density Approximation Exact for Short Wavelength Fluctuations?

Physical Review Letters, 1994
A commonly cited reason for the success of the local spin density (LSD) approximation is that it correctly accounts for short wavelength contributions to the exchange-correlation energy. We show that this result, while true in several limits and for several approximations to these fluctuations, is not exact in general, with an analytic demonstration on
, Burke, , Perdew, , Langreth
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Learning effect, short-term fluctuation, and long-term fluctuation in frequency doubling technique

American Journal of Ophthalmology, 2000
To evaluate short-term and long-term fluctuations and learning effects in healthy subjects tested with the frequency doubling technique, which is based on a low spatial frequency and a high temporal frequency stimulus.Twenty-three healthy adult subjects were consecutively recruited from volunteers, and 20 subjects finished the study.
IESTER, MICHELE, CAPRIS, PAOLO, PANDOLFO A, ZINGIRIAN M, TRAVERSO, CARLO   +4 more
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Short-Term Fluctuations in Petroleum Consumption

Applied Statistics, 1953
In this article Mr Butler not only shows how he has evolved a method of estimating the trend in petroleum consumption but also expresses the uncertainty in the resulting forecasts by giving limits within which short‐term fluctuations may be expected to lie.
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Short-Period Climatic Fluctuations: Effects on Diatom Biomass

Science, 1976
An analysis of the weekly averages of diatom biomass measured near the coast of Southern California (32°50′N, 117°10′W) during the period from 1928 through 1939 indicates that three major blooms account for 85 percent of each year's diatom biomass. The average duration of a single bloom is 5.5 weeks. The diatom blooms coincide with upwelling, but their
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Short-Run Fluctuations in the Money Multiplier and Monetary Control

Journal of Money, Credit and Banking, 1977
An increasing number of monetary economists now describe the money supply process within the framework of the Brunner-Meltzer nonlinear hypothesis. For a detailed description of the hypothesis see [4, 5, 6]. Several aspects of this general approach to analyzing the behavior of the money stock are considered in this article.
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Positive Correlations between Short-Term and Average Long-Term Fluctuations in Wind Power Output

Energies, 2021
Chiyori T Urabe, Takashi Ikegami, Kazuhiko Ogimoto   +2 more
exaly  

Consensus-based distributed optimal power flow using gradient tracking technique for short-term power fluctuations

Energy, 2023
Zhaoyi Zhang, Lei Shang, Qiupin Lai
exaly  

Short-range order of fluctuating moments in iron

Physical Review B, 1985
, Jarlborg, , Peter
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Short-term climatic fluctuations

Progress in Physical Geography: Earth and Environment, 1977
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Modeling of Short-Term Tidal Power Fluctuations

IEEE Transactions on Sustainable Energy, 2020
Guðrún Margrét Jonsdottir, Federico Milano   +1 more
exaly