Results 121 to 130 of about 57,915 (295)

Parameter Estimation of Weibull Distribution Based on Second-Kind Statistics

open access: yesJournal of Communications Software and Systems, 2010
The log-cumulant estimator is proposed to estimate the parameters of Weibull distribution based on second-kind statistics. With the explicit closed form expressions, the log-cumulant estimator is computationally efficient.
Zengguo Sun, Chongzhao Han
doaj  

Semiclassical noise beyond the second cumulant

open access: yes, 2006
We show how the semiclassical Langevin method can be extended to calculations of higher-than-second cumulants of noise. These cumulants are affected by indirect correlations between the fluctuations, which may be considered as "noise of noise." We ...
Nagaev, Kirill E.
core   +1 more source

Cumulant approach to the low-temperature thermodynamics of many-body systems

open access: yes, 1997
Current methods to describe the thermodynamic behavior of many-particle systems are often based on perturbation theory with an unperturbed system consisting of free particles.
Becker, Klaus W.   +2 more
core   +1 more source

Fluctuation Cumulant Behavior for the Field-Pulse Induced Magnetisation-Reversal Transition in Ising Models

open access: yes, 2003
The universality class of the dynamic magnetisation-reversal transition, induced by a competing field pulse, in an Ising model on a square lattice, below its static ordering temperature, is studied here using Monte Carlo simulations.
A. Misra   +13 more
core   +1 more source

Mixed Far-Field and Near-Field Source Localization Algorithm via Sparse Subarrays

open access: yesInternational Journal of Antennas and Propagation, 2018
Based on a dual-size shift invariance sparse linear array, this paper presents a novel algorithm for the localization of mixed far-field and near-field sources.
Jiaqi Song   +3 more
doaj   +1 more source

Quasiclassical Hamiltonians for large-spin systems

open access: yes, 2000
We propose a method for obtaining effective classical Hamiltonians \cal H for many-body quantum spin systems with large spins. This method uses the coherent-state representation of the partition function Z and the cumulant expansion in powers of 1/S. For
Fulde, P., Garanin, D. A., Kladko, K.
core   +1 more source

Non-uniform Estimates in the Approximation by the Irwin Law

open access: yesLithuanian Journal of Statistics, 2016
We consider an approximation of a cumulative distribution function F(x) by the cumulative distributionfunction G(x) of the Irwin law. In this case, a function F(x) can be cumulative distribution functions of sums (products) ofindependent (dependent ...
Kazimieras Padvelskis, Ruslan Prigodin
doaj   +1 more source

Collective flow and multiparticle azimuthal correlations [PDF]

open access: yes, 2000
The measurement of azimuthal distributions in nucleus-nucleus collisions relies upon the assumption that azimuthal correlations between particles result solely from their correlation with the reaction plane (i.e. flow).
Borghini, Nicolas   +2 more
core   +2 more sources

Topological Susceptibility of the Gluon Plasma in the Stochastic-Vacuum Approach

open access: yesUniverse
Topological susceptibility of the SU(3) gluon plasma is calculated by accounting for both factorized and non-factorized contributions to the two-point correlation function of topological-charge densities.
Dmitry Antonov
doaj   +1 more source

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