Results 271 to 280 of about 3,914,190 (307)

Traffic estimation with short-term fluctuating component

Networks 2008 - The 13th International Telecommunications Network Strategy and Planning Symposium, 2008
Technical Findings: Even if the sum of peak rates are same, the estimation of maximum traffic volume is different. If the traffic with high peak rates exists, the maximum traffic volume tends to be big since the variance is high. When all peak rates are ?, the maximum traffic volume takes the trivial upper bound.
Takeshi Kurosawa, Takehiro Kawata, Motoi Iwashita, Masayuki Tsujino   +3 more
openaire   +1 more source

Fluctuations in Sonar: A Short Survey

The Journal of the Acoustical Society of America, 1974
Sonar fluctuations received intensive study during the hectic days of World War II, when the causes of fluctuation were identified and some quantitative data were obtained at the frequencies and ranges of current interest. Since then, in the search for mean values of the sonar parameters, fluctuations have tended to be neglected as a subject of serious
openaire   +1 more source

Nonlinear effects in fluctuation short pulse reflectometry

Plasma Physics and Controlled Fusion
Abstract The fluctuation short pulse reflectometry diagnostic is simulated with the full-wave CUWA code for ad-hoc turbulence and simplified geometry. The nonlinear effects on the measurements are investigated while accounting for the plasma curvature, probing angle misalignment and non-Gaussian wavenumber spectrum of the turbulence. The
O Krutkin, S Brunner, S Coda, A Combette
openaire   +2 more sources

Antiferromagnetic fluctuations and short-range order in a Kagomé lattice

Physical Review Letters, 1990
We report neutron-scattering measurements on ${\mathrm{SrCr}}_{8\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Ga}}_{4+\mathit{x}}$${\mathrm{O}}_{19}$, a layered compound containing Kagom\'e planes of S=3/2 ${\mathrm{Cr}}^{3+}$ ions. From magnetic-susceptibility data, the Curie-Weiss constant is large and negative; ${\mathrm{\ensuremath{\theta}}}_ ...
, Broholm, , Aeppli, , Espinosa, , Cooper   +3 more
openaire   +2 more sources

Short period fluctuations of the equatorial electrojet

Nature, 1976
THE signal strength and Doppler frequency spectra of v.h.f. backscatter radar echoes from the equatorial electrojet are being recorded at Thumba near Trivandrum (dip ∼ 1 °S). The v.h.f. radar operates on 54.95 MHz, with identical arrays of Yagi antennae for transmission and reception; the beam axis is orientated either vertically or obliquely at 30° to
C. A. REDDY, C. V. DEVASIA
openaire   +1 more source

A Nonlinear Dynamic Model of Short Run Fluctuations

The Review of Economic Studies, 1981
Most recent attempts to model the "business cycle" (see the work of Lucas (1975), Sargent-Wallace (1975), Taylor (1979)) adopt a Frisch-Slutsky framework, in which the persistence of fluctuations in macroeconomic activity is explained by the persistence of random shocks impinging on an otherwise stable (and usually linear) systematic component. Work by
openaire   +1 more source

Econometric Analysis of the Short-run Fluctuations of Households' Purchases

The Review of Economic Studies, 1993
Infrequency of purchase models are alternatives to those derived from the classical 'utility maximization with binding nonnegativity constraints'scheme for modeling purchases that occur at random dates. An extension of those models is proposed that takes into account additional information about the exact number of times households purchased during the
openaire   +5 more sources

Quantum conductance fluctuations and classical short-path dynamics

Physical Review B, 1995
We present numerical results for ballistic-electron quantum transport through weakly open integrable circle and chaotic stadium billiards. The geometry of the pair of conducting leads is chosen in accordance with recent experiments for semiconductor microstructures [Marcus [ital et] [ital al]., Phys. Rev. Lett. [bold 69], 506 (1992)].
, Ishio, , Burgdörfer
openaire   +2 more sources

SHORT‐TERM FLUCTUATIONS IN PLASMA CORTISOL IN CUSHING'S SYNDROME

Clinical Endocrinology, 1977
SUMMARYShort‐term fluctuations in plasma cortisol were determined overnight in twelve patients with Cushing's syndrome: eight patients with bilateral adrenal hyperplasia of hypothalamic‐pituitary origin, three patients with a cortisol producing adenoma and one patient with a carcinoma of the adrenal cortex.
H, Vetter, R, Strass, J M, Bayer, R, Beckerhoff, H, Armbruster, W, Vetter   +5 more
openaire   +2 more sources

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
openaire   +2 more sources