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DISSIPATIVE STRUCTURE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-02-26

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Mathematics
CONT

The name dissipative structure expresses a paradox central to Prigogine's vision. Dissipation suggests chaos and falling apart; structure is its opposite. Dissipative structures are systems capable of maintaining their identity only by remaining continually open to the flux and flow of their environment.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Mathématiques
DEF

Notion introduite par I. Prigogine dans la thermodynamique du "non-équilibre" pour décrire des structures loin de l'équilibre dont émergent les phénomènes d'ordre par fluctuation. S'oppose aux structures près de l'équilibre propres aux phénomènes d'ordre et de relations causales. On y trouve une analogie avec le processus d'élaboration des termitières.

OBS

Exemple de notion nomade, inspirée de la théorie de l'auto-organisation, rapprochée à la théorie des bifurcations, à la théorie des catastrophes, au chaos fractal, et tout récemment à la théorie néo-connexionniste de l'autopoïèse.

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
  • Matemáticas
CONT

Las estructuras disipativas son ordenamientos espacio-temporales producto de fenómenos de auto-organización en sistemas abiertos lejos del equilibrio [...]

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Record 2 1994-04-28

English

Subject field(s)
  • Mathematics
CONT

... the dissipative structures that led to life on the planet probably began at the chaotic interface between solid, liquid, and gaseous surfaces where there is flux of high energy. Some scientists speculate that at this chaotic nexus, autocatalytic chemical structures... constituted a form of protolife.... Responding to the far-from-equilibrium environment, the descendants of these first autocatalytic, self-referential, self-similar structures linked together to form a larger structure of feedback loops called a hypercycle.

French

Domaine(s)
  • Mathématiques
DEF

Structure complexe en réseau de boucles d'itération interconnectées.

OBS

S'oppose à endocycle et à horicycle. L'ARN et son descendant l'ADN sont des hypercycles.

Spanish

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