影响沙堆自组织临界性的内因与外因

Internal and External Causes of Working on Self-Organized Criticality of Sand-piles

影响沙堆自组织临界性的内因是沙堆的规模和沙堆的组织结构,影响沙堆自组织临界性的外因是外界的扰动.沙堆的规模和沙堆的组织结构决定了沙堆是否能够出现自组织临界性.外界扰动的方式不同,自组织临界性出现的临界点不同;扰动强弱不同,会出现自组织临界性与非自组织临界性的分叉;外界的扰动表明怎样才能够出现自组织临界性以及自组织临界性出现的临界点,它只有通过沙堆的规模和沙堆的组织结构才能起作用.当内外因相互作用,使得系统在临界态能够维持其宏观上的稳定性的时候,自组织临界性就会出现.

Internal causes of working on selforganized criticality of sandpiles are the size and structure of sandpiles, and external cause is the outside perturbation. The size and structure of sandpiles determine sandpiles whether or not can appear selforganized criticality. Different ways of perturbation has different critical point at which selforganized criticality appears; Different intensity of perturbation causes branching between selforganized criticality and nonselforganized criticality; The perturbation shows how selforganized criticality appears and the critical point at which it appears; The perturbation works on selforganized criticality only by the size and structure of sandpiles. Selforganized criticality appears when internal and external causes act each other, and maintain macroscopic stabilization of sandpiles in the critical state. 