3.1.1信息需求分析.93.1.2功能需求分析.103.1.3性能需求分析.….123.2系统功能模块设计…133.3数据库分析133.4数据库的物理结构设计.144手机外卖订餐系统的设计与实现194.1用户及角色管理.…4.2...

AbstractWith the development of the science and technology,Internettechnology owns a important status in our daily life.The rapid developmentof the Internet has also driven the man...

In view of problem 1,firstly,a negotiation graph is constructed by using data information,the thesis negotiation allocation problem is transformed into the maximum edge covering pr...

目录引言11.问题重述.….22.问题分析….22.1问题1的分析。22.2问题2的分析….22.3问题3的分析33.背景图文概述….33.1线性规划概述.….33.2层次分析法概述.33.3灵敏度分析概述….33.4LNG0软件分...

东北大学本科生毕业设计（论文）AbstractABSTRACTWhen human beings acquire and exchange information,image,as a carrier,can play animportant role.Relevant studies show that in the exte...

The numerical solution of the time fractionaldifferential equationAbstract With the continuous upgrade of calculation tools in recent years,the application offractional differentia...

Discussion on Market ResearchAbstract In this paper,we discuss the problem of market survey,investigate the consumer'sunderstanding and response to a new product,find out the optim...

上海交通大学工程硕士学位论文第一章绪论在所有的生产工艺流程中，粘土湿型砂处理系统是最初的环节，也是最为重要的环节之一，其中包括了回用砂的回用处理、新砂及辅助材料的加入、型砂的混制和...

摘要理论价值，所设计的算法在挖掘效率和对大型数据库挖掘的可用性方面具有潜在的应用前景。关键词：数据挖掘，知识发现，关联规则，项目序列集，时态约束，数据分割。

目录引言11伽马(Gamma)函数和贝塔(Beta)函数的性质及应用...·1l.1伽马(Gamma)函数和贝塔(Beta)函数的定义..l.2伽马(Gamma)函数和贝塔(Beta)函数的性质...........2l.3伽马(Gamma)函数和贝塔(Be...