策略模型

We depict the operation mode, where retailers sell the products with different marketing policies in different selling periods, with the stochastic dynamic programming model, and compare the performance of the centralized system with that of the decentralized system.

应用随机动态规划模型，刻画了不同销售阶段采用不同经销策略的运营模式，比较了集中式和分散式供应链的最佳系统绩效，以及零售商和供应商在两种情况下的期望利润，证明了"双边际化效应"的存在。

Taking the overconfidence as an important cognitive bias into the consideration of classical optimal consumption and investment problem,an optimal consumption and investment model is set up with incomplete information.Then,an optimal consumption and investment strategy is given by use of stochastic dynamic programming theory.

将行为金融理论中过度自信这一重要的认知偏差纳入经典的最优消费投资问题中考虑，建立了部分信息下的最优消费投资决策模型，并运用随机动态规划原理得到了最优消费投资策略。

Investigate the performance analysis of material flow system based on stochastic petri net model.

归纳了建立物流系统仿真模型的方法及仿真算法中的三种基本仿真策略，阐述了研制物流仿真器的目的与意义。

Stochastic inventory model ; inventory service level ; inventory strategy ; average stockout ; purchase batch

随机存贮模型；存贮服务水平；存贮策略；平均缺货额；订购批量

This paper reviewed the related literatures to spare parts inventory management,discussed the progress of spare parts inventory management involving classification,demand forecast,inventory model and stategy,control approach,stockout and obsolescence,gave the future research trend——computer aided spare par...

通过对国内外有关备件库存管理的文献分析，总结了备件库存管理在备件分类、备件需求预测、备件库存模型与策略、备件库存控制与管理方法以及缺货与报废问题的研究状况，揭示备件库存管理的发展趋势———计算机辅助备件管理及备件物流管理。

A hybrid control strategy using both state feedback and parameter perturbation is applied to control the chaotic orbits embedded in the stroboscopic model in order to stabilize it to an equilibrium point.

采用一种既包含状态反馈又包含参数摄动的混合控制策略来控制频闪模型的混沌轨道，将其稳定到不动点。

It has carried out a physical experiment building and a virtual laboratory of electromagnetic induction based on VRML, using 3D MAX and VRML to make the three dimensional virtual test equipment, and produces the strategy which could optimize the VRML document, unify VRML and script language JavaScript to realize the object alternately operation in the three dimensional scene ; Using the embed element to insert the virtual experimental file to the HTML documents and realizes the network issue of virtual experimental system, which enables the studier to carry on the browsing study through Internet. And finally this thesis gives an introduction of the test appraisal situation of this virtual experiment.

具体是基于VRML实现了一栋物理实验大楼及一个电磁感应虚拟实验室，利用3D MAX、VRML进行三维虚拟实验设备的构建，并给出了优化VRML文件的策略，结合VRML和脚本语言JavaScript实现三维场景中模型对象的交互操作，使用embed元素将虚拟实验文件嵌入到HTML文档中实现虚拟实验系统的网络发布，使学习者能通过Internet进行浏览学习，最后介绍了该虚拟实验系统的试用评价情况。

By relaxing the linking constraints via Lagrangian relaxation technique, the model is decomposed into production and distribution planning subproblems with a quasi-distributed decision-making structure constructed. An optimized coordination scheme is designed based on subgradient algorithm.

建立供应链生产和配送计划集成模型，通过Lagrangian松弛技术松弛关联约束并构造一种准分布决策结构，基于次梯度算法设计一种优化协调策略。

Finally, based on these algorithms and cost model presented in this paper, a method to process subgraph queries in form of general DAGs is proposed.

基于这些算法和所给出的代价模型，提出了一般DAG子图查询的处理算法和查询优化策略。

Based on this model, the profit distribution tactic between them is discussed.

基于该模型，讨论了他们之间的利润分配策略。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐