The main contents include : 1 ) present a model of two - layer - tree structure to describe the topology of distribution network , and realize the model by object - oriented programming method 本论文的主要内容如下: ( 1 )提出了描述配电网拓扑结构的两层树结构模型,并采用面向对象的编程方法实现了此模型。
1 ) i research into the two - layer system structure of ormdbms and system speciality and discuss detailedly several important problem such as complex object , extension of types , technique of inherit and rule system 文章主要从数据库的系统结构、特性,存储机制,索引技术,查询优化和处理几个方面进行了深入的研究。
3 brings forward the ways of the user certificate management and two - layer privacy key ' s management , which ensures the reality and credibility of the privacy key and realizes the dynamic management of the privacy key 提出了个人证书管理和两级密钥管理的办法,保证了密钥自身的真实可靠性,并实现了密钥的动态管理。
( 5 ) study the bargaining game mode and arithmetic ( two - layer decision system optimization matrix ) of multi consumers " bargaining with one generator . bring forward the instance to analyze the feasibility 研究多个电力大用户与单一发电商的交易博弈模型、以及交易算法一两层决策系统优化模型,并通过算例分析交易的可行性。
The analysis results show that ac - iapp , adopting two - layer location database based on ac and ap and ac - based handover method , is the best in database size , query time and cost of handover 分析结果表明:综合考虑数据库容量、查询时间和越区切换代价, ac - iapp协议采用两层位置数据库( ac和ap )和基于ac的越区切换策略,性能最佳。
The current passion for making children compete against their classmates or against the clock produces a two - layer system , in which competitive a - types seem in some way better than their b - type fellows 目前,热衷于让孩子与同学竞争或与时间赛跑造成了一种双重体制,在这种体制中,竞争性的a型学生在某些方面似乎比b型的学生要好。
( 3 ) study the bargaining game modes and arithmetic ( two - layer decision system optimization matrix ) of one consumer ' s bargaining with multi generators . bring forward the instance to analyze the feasibility 研究单一电力大用户与多个发电商的交易博弈模型、以及交易算法一两层决策系统优化模型,并通过算例分析交易的可行性。
The current pa ion for making children compete agai t their cla mates or agai t the clock produces a two - layer system , in which competitive a - types seem in some way better than their b type fellows 现在这种让孩子们和其同学或时间竞争的热情导致了一个双层结构,在这个结构里面善于竞争的a类好像在某个方面要比他们b类的同辈更胜一筹。
Some examples are given , showing that density stratification can have a large effect on the added mass and damping of the floating rectangular box in a two - layer fluid over a range of frequencies 对所建立的求解模型进行了数值计算分析,结果表明在矩形箱浮体的某个振荡频率范围内,流体的分层效应对其附加质量和阻尼系数有显著影响的。