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A new theoretical paradigm to describe hysteresis,discrete memory and nonlinear elastic wave propagation in rock
new theoretical paradigm hysteresis discrete memory nonlinear elastic wave propagation
2009/11/16
The velocity of sound in rock is a strong function of pressure, indicating that wave propagation in rocks is very nonlinear. The quasistatic elastic properties of rocks axe hysteretic, possessing disc...
Manifestation of nonlinear elasticity in rock:convincing evidence over large frequency and strain intervals from laboratory studies
nonlinear elasticity in rock large frequency strain intervals laboratory studies
2009/11/16
Nonlinear elastic response in rock is established as a robust and representative characteristic rock rather than a curiosity. We show measurements of this behaviour from a variety of experiments on ro...
Solute transport in a heterogeneous aquifer:a search for nonlinear deterministic dynamics
Solute transport heterogeneous aquifer nonlinear deterministic dynamics
2009/11/9
The potential use of a nonlinear deterministic framework for understanding the dynamic nature of solute transport processes in subsurface formations is investigated. Time series of solute particle tra...