This research is to discuss the connotations of efa indicator of some researched universities , which includes the behavior of each studied case while doing the audit of campus environment , and to identify the influence and power of each sub - indicator by applying pareto s 80 / 20 theory 中文摘要本论文研制之生态足迹分析是评估在某一特定范围内(例如国家、区域、县市、企业或组织)因生活消费行为而对环境冲击的程度,是以换算的土地面积做为比较的基础,即环境冲击越大其生态足迹越大。
Based on the fem program on fracture of plane structure developed by professor fu xiaoling of ho hai university , a two demension damage and fracture finite program package which is programed in fortran 90 language is developed . the paper adopts the plane - eight - nodes isoparameters element and compute the developing law of the damage and macro - damage of plane structure under load . considering the original damage and tension and compression damage at the same time , the paper adopts the more reasonable concrete constitute relation of two demension and exponent function model 在河海大学符晓陵副教授所编制的平面结构断裂有限元程序( dl08p4 )基础之上,本文用fortran90语言编制的二维损伤-断裂有限元程序包,程序采用平面八结点等参数单元分析计算平面结构在外荷载作用下损伤及宏观裂缝的发展规律,考虑了混凝土结构体内存在着初始损伤和同时存在的拉、压损伤,并且采用更为合理的具有损伤含义的混凝土二维本构关系(即正交异性损伤模型中的本构方程)和指数函数模型建立的并可进行拉、压损伤可比性换算的损伤演变方程,较为真实地反映了实际情况。
The second is to define which thoughts of the theory are permanent , without changing along with the time , such thoughts , which are unavoidable in persisting in and developing the theory , are as follows : the abstract labor is the only source of the invention of value ; the simple labor and complex labor should be distinguished ; the concept " general worker " should be hold ; the necessary labor determines commodity value ; use value is the deposit of value 其次,必须明确马克思劳动价值论的哪些内容是不会随时代的变化而变化从而是我们必须坚持的,这些问题也是坚持和发展马克思劳动价值论不能回避的核心问题。文章认为:必须坚持抽象劳动始终是价值的唯一源泉的思想;必须坚持社会必要劳动时间决定商品价值量的思想;必须坚持简单劳动和复杂劳动划分及其相互换算的思想;必须坚持“总体工人”的思想;必须坚持使用价值只是价值物质承担者的思想等等。