In this paper, we introduce a wave transport scenario useful for investigation of spatio-temporal energy transport related to earthquake phenomena. We perform gradient pattern analysis (GPA) of convection–diffusion patterns given by the solution of 2D Burger's equation. The GPA leads to...

Tropical hydroelectric reservoirs generally constitute an appreciable source of methane to the atmosphere. This paper proposes simple mitigation and recovery procedures to substantially reduce atmospheric methane emissions from hydroelectric reservoirs. We aim at transforming existing methane...

A gradient pattern analysis is used to report a phenomenogical evidence of asymmetric nonlinear spatial distribution of porous silicon structures. We used a canonical sample set obtained from scanning force microscopy. Due to the high sensitivity of the gradient field operator, it is possible to...

This paper introduces a relative structural complexity measure for the characterization of disordered surfaces. Numerical solutions of 2d+1 KPZ equation and scanning force microscopy (SFM) patterns of porous silicon samples are analyzed using this methodology. The results and phenomenological...

We report an investigation of interior crisis in extended spatiotemporal systems exemplified by the Kuramoto–Sivashinsky equation. We show that unstable periodic orbits and their associated invariant stable and unstable manifolds in the Poincaré hyperplane can effectively characterize the...

We have analysed, for the first time, the high-resolution X-ray images of the solar corona, obtained by the Yohkoh Mission, as non-linear extended systems. To quantify the spatio-temporal complexity in this extended system, we use an asymmetric spatial fragmentation parameter computed from a...