Results 211 to 220 of about 6,892 (256)

Innovation and growth through local and global interaction [PDF]

open access: yes
R. Andergassen   +2 more
core  

Self-organized criticality

Physical Review A, 1988
We show that certain extended dissipative dynamical systems naturally evolve into a critical state, with no characteristic time or length scales. The temporal ``fingerprint'' of the self-organized critical state is the presence of flicker noise or 1/f noise; its spatial signature is the emergence of scale-invariant (fractal) structure.
, Bak, , Tang, , Wiesenfeld
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Self-organized criticality in a nutshell

Physical Review E, 1999
In order to gain insight into the nature of self-organized criticality (SOC), we present a minimal model exhibiting this phenomenon. In this analytically solvable model, the state of the system is fully described by a single-integer variable. The system organizes in its critical state without external tuning.
J, Nagler, C, Hauert, H G, Schuster
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Seismicity and self-organized criticality

Physical Review E, 1994
Distributed seismicity appears to fit the definition of a self-organized, critical phenomenon. In this paper a cellular-automata model is presented as an analog to distributed seismicity. We consider a grid of boxes with a fractal distribution of sizes. Particles are randomly added to the boxes.
, Barriere, , Turcotte
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Self-organized criticality in fragmenting

Physical Review Letters, 1993
The measured mass distributions of fragments from 26 fractured objects of gypsum, soap, stearic paraffin, and potato show evidence of obeying scaling laws; this suggests the possibility of self-organized criticality in fragmenting. The probability of finding a fragment scales inversely to a power of the mass; the power, or scaling exponent, was found ...
Oddershede, L., Dimon, P., Bohr, J.
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