The dynamics of domain walls motion in thin films is usually performed with magneto-optical methods, which require to detect a sequence of images in time, for different field of view. The resulting avalanche distributions give interesting hints on the magnetization dynamics, but are strongly dependent on the size of the windows chosen. Here we investigate how to properly detect the size of the ...

BACKGROUND Traditional electroencephalography provides a critical assessment of pain responses. The perception of pain, however, may involve a series of signal transmission pathways in higher cortical function. Recent studies have shown that a mathematical method, the neuronal avalanche model, may be applied to evaluate higher-order network dynamics. The neuronal avalanche is a cascade of neuro...

We investigate a non-equilibrium one-dimensional model known as the raise and peel model describing a growing surface which grows locally and has non-local desorption. For specific values of adsorption (ua) and desorption (ud) rates, the model shows interesting features. At ua = ud , the model is described by a conformal field theory (with conformal charge c = 0) and its stationary probability ...

In this work, the discharge dynamics in an atmospheric pressure dielectric barrier discharge (DBD) is studied in a DBD reactor having parallel plate electrodes geometry. The DBD reactor is powered by a 50 Hz ac high voltage power source through a ballast resistor. The images of filaments occurring in the discharge gap are captured using a high speed intensified charge coupled device camera. The...

The avalanche dynamics in the Bak–Sneppen mechanism of self-organized criticality (SOC) is discussed. Rigorous arguments reveal the emergent history dependence that dominates the intermittent activity. In numerical studies the emergent SOC state shows glassy features, such as aging and an ultrametric organization of activity. c © 1999 Elsevier Science B.V. All rights reserved.