Results 41 to 50 of about 286,009 (201)

Correlations of chaotic eigenfunctions: a semiclassical analysis

, 2001
We derive a semiclassical expression for an energy smoothed autocorrelation function defined on a group of eigenstates of the Schr\"odinger equation. The system we considered is an energy-conserved Hamiltonian system possessing time-invariant symmetry ...
Baowen Li, Berry M, Berry M V, Berry M V, Bäcker A, Bäcker A, Bäcker A, Daniel C Rouben, Eckhardt B, Gutzwiller M C, Hu B, Kaplan L, Li B, Li B, Li B, Li B, Li B, Mirlin A, Prosen T, Shnirelman A L, Srednicki M, Sridhar S, Voros A   +22 more
core   +1 more source

Optimal approximation model of autocorrelation function of digital image

Tongxin xuebao, 2011
Non-stationary stochastic signal was divided into piecewise stationary stochastic signal,and reflecting the sig-nal’s characteristics by autocorrelation function of the piecewise stationary stochastic signal.Generally,the autocorrela-tion function was ...
CHENG Xiao-gang1, CHEN Qi-mei1, CHENG Hao2, LIU Guo-qing2, AN Ming-wei1   +4 more
doaj   +2 more sources

Dynamics of a bubble formed in double stranded DNA

, 2008
We study the fluctuational dynamics of a tagged base-pair in double stranded DNA. We calculate the drift force which acts on the tagged base-pair using a potential model that describes interactions at base pairs level and use it to construct a Fokker ...
Kornberg A. Baker T. A., Peyrard M., Poland D., Saenger W., Shikha Srivastava, Yashwant Singh   +5 more
core   +1 more source

2-adic complexity of SLCE sequence

Tongxin xuebao, 2019
Aiming at the 2-adic complexity of Sidelnikov-Lempel-Cohn-Eastman sequences,autocorrelation function value of this kind of sequence was obtained by using the cyclotomic number.Based on the relationship between 2-adic complexity and autocorrelation ...
Yan WANG, Shunbo LI, Gaina XUE
doaj   +2 more sources

Universal hypothesis of autocorrelation function from Krylov complexity

Quantum Frontiers
In a quantum many-body system, autocorrelation functions can determine linear responses nearby equilibrium and quantum dynamics far from equilibrium.
Ren Zhang, Hui Zhai
doaj   +1 more source

BIFM: Big-Data Driven Intelligent Forecasting Model for COVID-19

IEEE Access, 2021
Ever since the pandemic of Coronavirus disease (COVID-19) emerged in Wuhan, China, it has been recognized as a global threat and several studies have been carried out nationally and globally to predict the outbreak with varying levels of dependability ...
Sujata Dash, Chinmay Chakraborty, Sourav Kumar Giri, Subhendu Kumar Pani, Jaroslav Frnda   +4 more
doaj   +1 more source

Time series analysis of friction force at self-affine mode of ice surface softening

Condensed Matter Physics, 2021
The self-affine mode of ice softening during friction is investigated within the rheological model for viscoelastic medium approximation. The different modes of ice rubbing, determined by formation of surface liquid-like layer, are studied.
A. V. Khomenko, D. T. Logvinenko
doaj   +1 more source

On detecting the large separation in the autocorrelation of stellar oscillation times series

, 2009
The observations carried out by the space missions CoRoT and Kepler provide a large set of asteroseismic data. Their analysis requires an efficient procedure first to determine if the star is reliably showing solar-like oscillations, second to measure ...
Appourchaux, Appourchaux, Appourchaux, Appourchaux, Arentoft, Auvergne, B. Mosser, Baglin, Barban, Bruntt, Chaplin, Christensen-Dalsgaard, Christensen-Dalsgaard, Fossat, Frohlich, Garcia, Kallinger, Kjeldsen, Michel, Mosser, Mosser, Mosser, Mosser, Roxburgh, Roxburgh, Stello, T. Appourchaux, Tassoul   +27 more
core   +2 more sources

USE OF THE CROSSCORRELATION FUNCTION IN THE IDENTIFICATION OF ARMA MODELS USO DE LA FUNCIÓN DE CORRELACIÓN CRUZADA EN LA IDENTIFICACIÓN DE MODELOS ARMA

Revista Colombiana de Estadística, 2008
The sample cross-correlation function (SCCF) has been used to study the strength and direction of the linear relation between two jointly stationary stochastic processes.
Castaño Elkin, Martínez Jorge
doaj  

Optimal Spreading Sequences for Chaos-Based Communication Systems [PDF]

, 2007
As a continuation from [2], some higherorder statistical dependency aspects of chaotic spreading sequences used in communication systems are presented.
Lawrance, A.J., Papamarkou, T.
core