理论模型

However, in some special water areas the utilitization of StreeterPhelps model has some limitation as confirming reaeration coefficient often comes from tests in rivers with fast water flow speed with no consideration of wave effects. Furthermore, in practical research in Three Gorges Reservoir, the changing rule of COD appears abnormally. In some water areas far from pollution source, the value of COD changes with time, but does not follow the exponential attenuation rule. This phenomenon can not be explained by former modified StreeterPhelps model.

StreeterPhelps模型是目前进行河流水质研究常用的物理模型，具有良好的理论和实用价值，然而在某些特定水域，该模型的应用受到限制，主要原因是复氧系数的取定多在水流速度较大情况下得到的，而未考虑水面波动对复氧系数的影响，另外，在实际研究过程中发现三峡库区COD变化的规律出现异常：在离排污口相当远的水域，COD随时间变化趋势并不是指数衰减，而是在某个常值附近微小摆动，以往很多修正过的StreeterPhelps模型都无法解释这个现象。

Through the study of the trends of development of modern Western science methodology, the paper analyses the main features of three methodological models: prestippositionalist model of logics , relativist model of history and integrated model of logics and history.

本文以马克思主义观点审视现代西方科学方法论的演变趋势，揭示了现代西方科学方法论三大模型——预设主义的逻辑模型、相对主义的历史模型以及逻辑与历史相结合模型——的主要特征，并对西方各派方法论的成就与兴衰的缘由，作出了理论的概括和系统的评估。

Workflow process model consists of logic layer and semantics layer, and workflow pattern is the summarization and generalization of all the repetitiously used conjunctive symbols and its conjunctive relationship in the logic layer of a workflow process model.

本文在考察和比较了国内外各种关于工作流建模理论研究的基础上，针对实现工作流管理系统这一目标所涉及的工作流元模型、工作流过程模型等几个核心问题，在前人研究成果的基础上，对工作流元模型的可扩展性、工作流过程模型建模中存在的问题以及工作流管理系统的实现等方面开展了深入的研究工作。

In light of the analysis of the traditional methods of model representation and model composite, a novel theory of model representation and model composite based on Agent technology was proposed.

在分析当前模型表示与模型复合方法的局限性基础上，结合Agent技术，提出了基于Agent的模型表示与模型复合理论。

Experimental studiesThis experiment adopts the chronic serum sickness MsPGN animal model improved and combine it with damp and hot model to establish experimentalrat foundation that contain deficiency of Yin and damp and hot . Compared the biochemisty and organizing such index as the shape , etc at the different stage of the model metioned above with those facts of MsPGN rat to find out the relationship between deficiency of Yin damp and hot and MsPGN on the development of illness and the role in MsPGN course, know the disease machine of MsPGN and treat MsPGN for Chinese medicine, screen the effective square medicine and establish the experiment foundation.

实验研究本实验采用改良的慢性血清病MsPGN动物模型，将其与具有一定实验研究基础的大鼠阴虚，湿热证模型有机结合起来，建立大鼠实验性MsPGN阴虚湿热蕴结证的病证结合模型，通过与单纯实验性大鼠MsPGN模型不同造模阶段的生化、组织形态等指标的比较，探讨阴虚湿热蕴结与MsPGN发病的关系及其在MsPGN发病过程中的作用，为中医认识MsPGN的病机及治疗MsPGN，筛选有效方药奠定理论基础。

On the base of these work, the theory and technique which deal with ecological modeling, two-dimension ecological dynamic model and stochastic eutrophication model was researched thoroughly.

在此基础上，较为深入地研究了富营养化生态模型、二维生态动力学模型、随机富营养化模型和面污染模型所涉及的理论和技术问题。

Furthermore, attack stream model and dynamic evaluation model were presented here by applying theory of stochastic process. The dynamic evaluation model was used to evaluate the existing distributed CA schemes in mobile Ad Hoc network.

针对当前移动Ad Hoc网络分布式CA方案缺乏有效的安全性能评估模型问题，利用随机过程理论，提出了攻击流模型和网络安全性动态评估模型，并利用该动态评估模型对分布式CA方案的安全性进行了评估。

According to Assignment problem and its solution that contain strict theoretic proof and practical value , the thesis sets up assignment model of antiaircraft artillery group's firepower optimal allotment in the case of one-to-one-gunshot and multiply-to-one gunshot, discusses the solution of the model, analyzes practical application of the model, and primarily validate the model through the example.

依据有严格理论证明和实用价值的指派问题及其解法，构建了一对一射击和多对一射击情形下的高炮群火力优化分配的指派模型，探讨了该模型的求解，分析了该模型的实际应用，并通过具体实例对该模型进行了初步验证。

Based on dynamic test data, using curve fitting and optimum method, three dynamic empirical model are developed according to the principle of minimizing errors, they are trilinear hysteresis model, variable linear hysteresis model and variable nonlinear hysteresis model.

对系统辩识模型作出了改进，把准静态特性的幂函数乘积模型与辩识模型相结合，形成了制动器的理论分析模型。

This paper introduces the fundamental principle of smoothness and prediction in use of grey theory in passive angle tracking, and constitutes the module of smoothness and prediction based on the grey algebraical curve model.

介绍了利用灰色理论在无源角度跟踪中进行平滑预测的基本原理，建立了基于灰色代数曲线模型的平滑预测模块，并通过计算机仿真说明灰色代数曲线模型较灰色微分方程等其它几种模型更适合于无源角度跟踪中的平滑预测，并就几种模型的应用范围作了比较。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。