Results 231 to 240 of about 18,403 (266)

Scaling functions and scaling exponents in turbulence

Physical Review E, 1993
We extend the recent work of Sirovich, Smith, and Yakhot (unpublished) and obtain for structure functions of arbitrary order an expression that is uniformly valid for the dissipation as well as the inertial range of scales. We compare the expression with experimental data obtained in a moderate-Reynolds-number turbulent boundary layer and find good ...
, Stolovitzky, , Sreenivasan, , Juneja
openaire   +2 more sources

NEW INSIGHTS INTO THE ESTIMATION OF SCALING EXPONENTS

International Journal of Wavelets, Multiresolution and Information Processing, 2004
We study the statistical performance of multiresolution-based estimation procedures for the scaling exponents of multifractal processes. These estimators rely on the computation of multiresolution quantities such as wavelet, increment or aggregation coefficients.
Bruno Lashermes, Patrice Abry, Pierre Chainais   +2 more
openaire   +1 more source

On the scaling exponent of binary polarization kernels

2014 52nd Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2014
It is well known that polar coding achieves capacity, but it is so far unknown exactly how fast polar codes approach channel capacity as a function of their blocklength. More precisely, let us fix a binary-input memoryless symmetric channel W of capacity I(W) and a desired probability of error P e .
Arman Fazeli, Alexander Vardy
openaire   +1 more source

Scaling exponents in nonisotropic convective turbulence

Physical Review Letters, 1989
A dynamical theory for the structure functions in convective turbulence at high Rayleigh numbers is presented. A range of scales is identified in which buoyancy forces dominate and the scaling exponents differ significantly from isotropic turbulence. A crossover to Kolmogorov-type scaling is predicted as a function of the Rayleigh number.
, Procaccia, , Zeitak
openaire   +2 more sources

Scaling exponents in thermally driven turbulence

Physical Review A, 1990
The scaling exponents of two-point correlation functions in nonisotropic convective turbulence are evaluated on the basis of the Boussinesq equations. The scaling indices differ significantly from Kolmogorov's scaling for isotropic turbulence. The physical reason for this difference is the length dependent buoyancy forcing in this case, in contrast to ...
, Procaccia, , Zeitak
openaire   +2 more sources

Scaling exponents estimation for multiscaling processes

2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004
We study the statistical performance of multiresolution (wavelet based) estimators commonly used for the estimation of the scaling exponents, /spl zeta/(q), of multifractal processes. So far, such studies have been conducted exclusively using the celebrated Mandelbrot's cascades.
Bruno Lashermes, Patrice Abry, Pierre Chainais   +2 more
openaire   +1 more source

Scaling Exponents for Active Scalars

Journal of Statistical Physics, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Tricritical Exponents and Scaling Fields

Physical Review Letters, 1972
The tricritical behavior of a classical three-well-potential model for two-component systems (such as ${\mathrm{He}}^{3}$-${\mathrm{He}}^{4}$ mixtures) is discussed by using renormalization-group techniques. The tricritical exponents and scaling fields are calculated for three dimensions.
Eberhard K. Riedel, Franz J. Wegner
openaire   +1 more source

Exploring the level of urbanization based on Zipf’s scaling exponent

Physica A: Statistical Mechanics and Its Applications, 2021
Yanguang Chen
exaly