Not exact matches
For example, the classical
equations used to predict the performance of
such materials have indicated that the logarithm of the reaction rate should vary linearly as voltage is increased — but experiments have shown a
nonlinear response, with the uptake of lithium flattening out at high voltage.
«A dynamical system
such as the climate system, governed by
nonlinear deterministic
equations (see Nonlinearity), may exhibit erratic or chaotic behaviour in the sense that very small changes in the initial state of the system in time lead to large and apparently unpredictable changes in its temporal evolution.
In a system
such as the climate, we can never include enough variables to describe the actual system on all relevant length scales (e.g. the butterfly effect — MICROSCOPIC perturbations grow exponentially in time to drive the system to completely different states over macroscopic time) so the best that we can often do is model it as a complex
nonlinear set of ordinary differential
equations with stochastic noise terms — a generalized Langevin
equation or generalized Master
equation, as it were — and average behaviors over what one hopes is a spanning set of butterfly - wing perturbations to assess whether or not the resulting system trajectories fill the available phase space uniformly or perhaps are restricted or constrained in some way.
As to offering up alternative «governing
equations», check out the work by Ghil offered by Generalissimo Skippy and the book «
Nonlinear Climate Dynamics» by Henk A. Dijkstra, offered up by me following a related recommendation by «Chief Hyrologist» for some hints at (a) work in progress to develop
such governing
equations and (b) how far the laborers in the field are from having one and getting it tested.