You limited your search to:

  Partner: UNT College of Arts and Sciences
 Department: Center for Nonlinear Science
 Collection: UNT Scholarly Works
Vortex Dynamics in Evolutive Flows: A Weakly Chaotic Phenomenon

Vortex Dynamics in Evolutive Flows: A Weakly Chaotic Phenomenon

Date: 2003
Creator: Bellazzini, Jacopo; Menconi, Giulia; Ignaccolo, Massimiliano; Buresti, Guido & Grigolini, Paolo
Description: In this article, the authors make use of a wavelet method to extract, from experimental velocity signals obtained in an evolutive flow, the dominating velocity components generated by vortex dynamics.
Contributing Partner: UNT College of Arts and Sciences
Random Growth of Interfaces as a Subordinated Process

Random Growth of Interfaces as a Subordinated Process

Date: July 30, 2004
Creator: Failla, Roberto; Grigolini, Paolo; Ignaccolo, Massimiliano & Schwettmann, Arne
Description: In this article, the authors study the random growth of surfaces from within the perspective of a single column, namely, the fluctuation of the column height around the mean value, y(τ)=h(τ)-‹h(τ)›, which is depicted as being subordinated to a standard fluctuation-dissipation process with friction y.
Contributing Partner: UNT College of Arts and Sciences
Linear Response to Perturbation of Nonexponential Renewal Processes

Linear Response to Perturbation of Nonexponential Renewal Processes

Date: November 23, 2005
Creator: Barbi, Francesco; Bologna, Mauro & Grigolini, Paolo
Description: This article discusses the linear response to perturbation of nonexponential renewal processes.
Contributing Partner: UNT College of Arts and Sciences
Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition

Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition

Date: April 11, 2002
Creator: Allegrini, Paolo; Grigolini, Paolo; Hamilton, P.; Palatella, Luigi & Raffaelli, G.
Description: In this article, the authors describe two types of memory and illustrate each using artificial and actual heartbeat data sets.
Contributing Partner: UNT College of Arts and Sciences
Long- and Short-Time Analysis of Heartbeat Sequences: Correlation with Mortality Risk in Congestive Heart Failure Patients

Long- and Short-Time Analysis of Heartbeat Sequences: Correlation with Mortality Risk in Congestive Heart Failure Patients

Date: 2003
Creator: Allegrini, Paolo; Balocchi, Rita; Chillemi, Santi; Grigolini, Paolo; Hamilton, P.; Maestri, Roberto et al.
Description: This paper discusses long- and short-time analysis of heartbeat sequences and the correlation with mortality risk in congestive heart failure patients.
Contributing Partner: UNT College of Arts and Sciences
Fractional Brownian motion as a nonstationary process: An alternative paradigm for DNA sequences

Fractional Brownian motion as a nonstationary process: An alternative paradigm for DNA sequences

Date: April 1998
Creator: Allegrini, Paolo; Buiatti, Marco, 1972-; Grigolini, Paolo & West, Bruce J.
Description: This article discusses fractional Brownian motion as a nonstationary process. The model adopted is compatible with the known biological and physical constraints, namely, it is shown to be consistent with the information of current biological literature on folding as well as with the statistical analyses of DNA sequences.
Contributing Partner: UNT College of Arts and Sciences
Anomalous diffusion and ballistic peaks: A quantum perspective

Anomalous diffusion and ballistic peaks: A quantum perspective

Date: June 1998
Creator: Stefancich, Marco; Allegrini, Paolo; Bonci, Luca; Grigolini, Paolo & West, Bruce J.
Description: This article discusses anomalous diffusion and ballistic peaks.
Contributing Partner: UNT College of Arts and Sciences
Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes

Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes

Date: September 1998
Creator: Allegrini, Paolo; Buiatti, Marco, 1972-; Grigolini, Paolo & West, Bruce J.
Description: This article discusses a non-Gaussian indicator to measure the deviation from Gaussian statistics of a diffusion process generated by dichotomous fluctuations with infinite memory.
Contributing Partner: UNT College of Arts and Sciences
Fractional calculus as a macroscopic manifestation of randomness

Fractional calculus as a macroscopic manifestation of randomness

Date: March 1999
Creator: Grigolini, Paolo; Rocco, A. (Andrea) & West, Bruce J.
Description: Article discussing fractional calculus as a macroscopic manifestation of randomness.
Contributing Partner: UNT College of Arts and Sciences
Tunneling rate fluctuations induced by nonlinear resonances: A quantitative treatment based on semiclassical arguments

Tunneling rate fluctuations induced by nonlinear resonances: A quantitative treatment based on semiclassical arguments

Date: November 1998
Creator: Bonci, Luca; Farusi, Andrea; Grigolini, Paolo & Roncaglia, Roberto
Description: This article discusses tunneling rate fluctuations induced by nonlinear resonances. The authors investigate the tunneling process between two symmetric stable islands of a forced pendulum Hamiltonian in the weak chaos regime.
Contributing Partner: UNT College of Arts and Sciences