8.1 物流信息系统的内容与作用 8.2 自动识别系统及其应用 8.3 电子数据交换系统(EDI) 8.4 电子自动订货系统（EOS） 8.5 物流运输信息管理 8.6 销售时点信息系统（POS） 8.7 电子商务与物流信息系统

一、产品介绍 二、应用程序组成 三、数据组织 四、扩展模块的加载和卸载 五、 ArcCatalog和ArcToolbox的简单操作 六、获取帮助

DestinationAddress Output port number or VC number A packet switch consists of a routing engine (table look-up), a switch scheduler, and a switch fabric

Broadcast Routing Route a packet from a source to all nodes in the network Possible solutions: – Flooding: Each node sends packet on all outgoing links Discard packets received a second time – Spanning Tree Routing: Send packet along a tree that includes all of the nodes in the network

Routing Must choose routes for various origin destination pairs (O/D pairs) or for various sessions – Datagram routing: route chosen on a packet by packet basis Using datagram routing is an easy way to split paths – Virtual circuit routing: route chosen a session by session basis

一、设计应掌握的基础资料 进行活性污泥系统的工艺计算和设计时，首先应比较充分地掌握与废水、污泥有关的原始资料并确定 设计的基础数据，主要有： ①废水的水量、水质及其变化规律； ②对处理后出水的水质要求； ③对处理中产生的污泥的处理要求； ⎯⎯以上属于设计所需要的原始资料

Outline Network Layer and Internetworking The TCP/IP protocol suit ATM MPLS

Optimal Routing View routing as a “global” optimization problem Assumptions: – The cost of using a link is a function of the flow on that link

FLOW CONTROL QuickTime™ and a GIF decompressor are needed to see this picture. QuickTime™ and a Photo - JPEG decompressor are needed to see this picture. LIDS Flow control: end-to-end mechanism for regulating traffic between source and destination

Service times M/G/1 General independent Poisson arrivals at rate λ Service time has arbitrary distribution with given E[X] and E[X2] – Service times are independent and identically