模型理论

This paper studys channel resource reforger in this background, which adopts qualitative analysis and quantitative analysis, applies economy mathematics model of marketing theory linearity regressive model, Hotteline price competition model and profit – loss counterpoise theory.

本文正是基于这样的研究背景，采用定性与定量分析相结合的方法，应用市场营销理论、线性回归模型、豪特林价格竞争模型和盈亏平衡原理等经济数学模型，主要围绕着价格体系调整及中间商空间分布调整两个方面对渠道窜货问题进行了系统探索和研究。

Combining with co-evolution mechanism, we renewedly defined the several aspect of the co-evolutionary agent, such as the belief, action, communication, decision maker, and so on. We made the co-evolutionary agent model and actual world model become a uniform closed loop system, and established the symbol deduction theory model of multi-agent system based on co-evolution mechanism.

结合协进化机制，从符号演绎逻辑的角度重新定义了协进化智能体的信念、动作、通信、决策器等各个方面，将协进化智能体模型与实际世界模型形成一个统一的闭环系统，并建立了基于协进化的多智能体系统的符号演绎理论模型。

With introducing of nonlinear dynamics and chaos theory, several nonlinear models of single species population, such as discrete time logistic model, Ricker model and Hassell model, were simulated.

本文在介绍混沌与非线性系统理论的基础上，对离散时间的Logistic模型，Ricker模型，Hassell模型的非线性动力学行为进行了模拟，并给出了相应的分形表达。

In this paper, using Dragon's constitutive equation and the proposed friction-induced plasticity theory in this paper, a more simple coupling model on elastic damage and friction -induced plasticity is presented for rocklike materials. An example for validity is given and shows the agreement with Dragon's results.

利用该模型，与本文的摩擦塑性理论相结合，建立了一个新的更简单的岩石类材料摩擦塑性与弹性损伤耦合模型，通过考核算例表明，该模型给出的结果与Dragon等人的结果是一致的。

To enhance security in Ad-Hoc networks,it is important to evaluate the trustworthiness of other nodes without centralized authorities.In this work,authors focus on the evaluation of trust evidence in Ad Hoc networks.First,the authors introduce the metrics of the trust,the evaluation process is modeled as a path problem on a directed graph,where nodes represent entities,and edges represent trust relations.Using the theory of semirings,a trust evaluation model based on semiring（TD-SEMIRING） is developed,then two nodes can establish an indirect trust relation without previous direct interaction and introduce the application of this model in route election.At last,the feasibility of this model is analyzed.

讨论了对可信事件的评估：首先介绍了可信的相关概念和相关的特性；接着评估过程被建模成一个在有向图寻找最短路径的问题，在该有向图中结点表示实体或者用户，边表示可信关系，通过使用半环理论，建立了一个基于半环的可信性评估模型TD-SEMIRING，在两个以前没有进行相互操作的实体之间建立间接的可信关系，介绍了这个模型在路由选择当中的应用；最后，通过仿真实验，验证、分析了该模型的有效性。

First, it expounded foundational theories of capital operation especially about related state-owned enterprise, then it put forward the SOCO State-Owned Capital Operation Model which had directly aimed at self characteristic and the circumstances of our big-and-middle state-owned enterprise .

首先，本文在对有关资本运营、尤其是国有企业资本运营的相关理论基础作了阐述以后，针对我国大中型国有企业的自身特点和情况，提出了SOCO国有资本运营实施模型(State-Owned Capital Operation Model)，该模型将资本运营的整个实施过程划分为概念层、运作层、支撑环境层三个层面，围绕着三个层面，本文对国有大中型企业如何有效开展资本运营作了详细的论述和探讨，最后在分析我国国有大中型企业现状的基础上，结合本文所提出的SOCO模型，对我国国有大中型企业实施企业资本运营提出了一些建议。

For soil surface the IEM model was used, and the specula surface approximation was used for flooded field.

利用矢量辐射传输理论建立了水稻微波后向散射模型，模型中考虑了稻田土壤无水的情况，用积分方程模型模拟土壤下垫面，而对稻田积水情况下的垫面用镜面反射近似。

According as the turn-on intensity running rules of the place ,this paper improves the liner model of workload allocations as to set up a corresponding nonlinear model which base on the minimizing costs of manufacturing and storge.

本文在GRAI模型及其相关理论的基础上，根据变迁触发规则，对已建立的生产调度过程工作量规划的线性模型进行改进，以企业整个生产过程中加工费用和存储费用最小为目标函数建立了一种非线性生产调度过程工作量规划统一模型。

To arrange the prestressed tendons and anchor devices on the web of box girder conveniently, a theoretical analysis, numerical calculation and model test on local stresses in concrete under anchor devices were performed separately using a typical segmental model, a subrange model and a similar model for the scheme design of Hutiaomen major bridge.

为便于箱梁腹板预应力筋及锚具的布置，结合虎跳门连续刚构桥的方案设计，对特征节段模型、子区域模型和试验模型锚下混凝土局部应力分别进行了理论分析、数值计算和试验研究。

When these parameters surpass a certain value, the system cannot appear the limitcycle. Through the various parameters\' changing, it demonstrates the forming process of the dissipative structure. Thus it show the dissipative structure\'s characteristic of the trophodynamics predation model and point out the ecological significance of the various parameters in the model.On the fourth chapter, the spruce aphides and its predator model is a predator model.

第四章，以两个捕食者作用于同一食饵的竞争关系模型为例，应用微分方程定性理论，对捕食模型中存在极限环的情况进行了讨论，用MATLAB在相平面上模拟出系统的极限环，此时该体系状态的发展呈现周期振荡趋势，从而揭示出营养动力学为基础的捕食模型耗散结构特征。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。