最短路径问题

This article thoroughly studied an usable widely VRPTW of logistics distribution, and constructed the mathematical model about this problem, designed a new genetic algorithm to solve VRPTW and with C language programming to test it with an example, finally has obtained satisfaction solution, so had guaranteed enterprise not only satisfy the customer's distribution demands, but also caused the vehicles have the shortest routing, as well the cartage expense was smallest.

本文深入研究了VRP中应用日益广泛的VRPTW问题，构建了该问题的数学模型，设计了求解VRPTW的新型遗传算法，并用C语言编程对该算法进行实例测试，结果得出了满意解，保证了物流企业在满足客户配送需求的同时，又使得运输车辆的配送路径最短、运输费用最小。

Aiming at the problem, we propose a shortest path routing algorithm based transiently chaotic neural network.

论文针对这个问题，提出了一种基于暂态混沌神经网络的最短路径路由算法。

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。

The former can provides a shorter path and least action to reach the desired equilibrium point; and the latter proposes a class of linear sliding-mode, which not only guarantees global nonsingular but also uncouples the original control system.

改进的PID控制律保证了闭环系统能够沿最短路径趋于稳态值；解耦变结构控制律直接针对完整的四元数设计一类线性滑模，从而避免了奇异问题，而且对原控制系统解耦。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。