In order to determine thermal loading and working pressure of nozzle inner contour , the gas was regarded as one dimensional isentropic flow , and temperature field of nozzle was computed based on three - dimension finite element model 将燃气简化为一维等熵流以确定喷管内型面所承受的温度和压力载荷，基于三维有限元模型，计算了喷管的瞬时温度场。
By using theories from the relevant disciplines such as geography , mathematics , physics , ecology , and system sciences , this thesis develops a framework employing the concept of system entropy to represent the state function of the man - earth relationship system . in this framework the entropy change is used to show the development change of the system , and the entropy flow to express the flow among the spatial parts of the system . following the framework , and based on a large set of household data from surveys , the thesis makes a quantitative analysis of the village - level man - earth relationship system from a micro - perspective 借助地理学、数学、物理学、生态学、系统科学等有关学科理论，根据实地调查的大量农户数据，从微观视角对村域人地关系系统进行了定量分析，用人地关系系统熵来表征人地关系系统的状态函数，用熵变来反映人地关系系统的发展变化，用熵流来表示人地关系系统各空间型式地域主体之间的流动。
The regulations construction is the foundation of the regular operation of the securities transaction system . it is the indication of the negative entropy flow for maintaining the opening of securities system . furthermore , it is the base point of the article researching the legal misrepresentation - balancing regulations system 这些相关制度的建设作为证券市场交易系统正常运作的基础，是维持证券系统开放性的负熵流表现，也是本文研究虚假陈述法律制衡体系的基点。
With the scale extending , the enterprise organization has changed from orderliness to chaos in the evolution process . so it is important for the sustainable development of enterprise to lead in organizational innovation which can make enterprise to create effective energy , absorb the negative entropy , reduce positive entropy and accelerate the formation of managerial dissipative structure 企业组织在发展过程中随着规模的扩大,其轨迹呈现出从有序到无序的内在演变过程,因而通过组织创新引导企业不断创造有效能、吸收负熵流、减少正熵流、促进管理耗散结构的形成,对推动企业可持续发展尤为重要。
