Secondly , with swot analysis method , author analyses the decision - making tactic for enterprises to implement tpl ; based on the binary decision - making criterion developed by ballow , author present the essential mode of decision - making on logistics , and analyses several operational management mode of tpl - the specialization and individuation operational mode based on core competitive ability , the conformity mode based on supply chain , virtual business mode based on modem electronic technology , and integrated logistics agent mode . and then , in the view of logistics , author analyses the principle abided by tpl enterprises in the process of reengineering the process of logistic business , analysing and designing the structure of tpl enterprises based on reengineering the process of manufacture and business . further more , author study the design mode of information management system for tpl , comparing and analysing typical information management system for logistics 鉴于此，本文分析了发达国家第三方物流事业的发展及其第三方物流运作管理的经验，结合中国物流行业的现状和环境，进行了如下研究：首先，基于第三方物流的基本概念及相关理论与技术方面，提出了关于第三方物流的见解；其次，应用swot分析方法分析了企业实施第三方物流的战略决策，研究了基于ballow开发的tpl二维决策标准，提出了第三方物流战略决策基本模式，剖析了几种第三方物流的运作管理模式，即：基于核心能力的专业化和个性化运作模式、基于供应链管理的整合运作模式、基于现代电子信息技术的虚拟经营模式和综合物流代理模式；然后，从物流的角度，分析了第三方物流企业在物流流程重组的过程中应注重的原则，从而以物流重组生产流程，重组物流业务流程，对第三方物流企业的组织结构进行了分析与设计；进而对第三方物流信息管理系统方案设计模式进行了研究，对当前典型的物流信息系统方案进行了比较与分析。
Reliability is an important parameter in evaluating the performance of a communication network . anew algorithm of computing networks reliability by using binary decision diagrams ( bdd ) is presented in this paper . the algorithm can get a much simpler bdd diagram than the other algorithms , and can reduce the complexity of the computation efficiently 关于网络可靠度，在已有结果的基础上，提出了一种利用二元判决图计算网络可靠度的方法，该方法将网络的最小路集用二元判决图来表示，并得到最小路集的不交和，最后获得网络的可靠度。
The method is better than others . firstly , the system sets up several models to assist detection work , such as road model , illumination model , shadow model and relationship model among them ; secondly , it introduces hue . saturation degree information to distinguish vehicles from shadow ; thirdly , it makes use of binary decision tree to analyze pressing line of vehicles to improve the reliability of the system ; fourthly , it puts forward a way of one dimension video tracing to resolve the problem of vehicle velocity detection 该方法通过设置在每条车道中的两条相互垂直的虚拟检测线来检测交通流信息(如车流量、车速等) ；设计一种彩色分段检测技术来提取运动车辆的尺寸信息和色彩信息，再利用分类决策树和滤波算法确定运动车辆存在与否，增强了车辆、阴影、噪声和背景之间的区分能力；设计了一种车速视频检测方法。
