颗粒系统的广义势及其临界指数  

Generalized Potential Function and Critical Exponents in Granular Assemblies

作　　者：李朝辉[1] 蔡绍洪[2] 

机构地区：[1]江苏科技大学数理学院,江苏镇江212003 [2]贵州财经学院,贵州贵阳550004

出　　处：《贵州大学学报（自然科学版）》2008年第1期44-47,共4页Journal of Guizhou University:Natural Sciences

基　　金：贵州省科学技术基金(20072004)

摘　　要：作者对BTW模型进行了简单修改,得出了系统构型的运动方程,进而构建了系统的广义势函数,讨论了广义势在临界点附近的渐进形式,得出了颗粒系统的临界变化规律和临界指数,并提出了一些需要改进的意见。On the basis of nonequilibrium phase transition standardized model which has universal significance, we have discussed BTW model, which is simply modified, and get a generalized potential function in the neighborhood of the critical point, A group of universal critical exponent relations and universal categories in granular assemblies are derived. Finally, some suggestions are put forward to solve the problem existing in the current theory.

关 键 词：颗粒物质 自组织临界 标度律 临界指数 

分 类 号：O345[理学—固体力学]