A-15低压空气断路器的电动操作设计

本文概述了Ａ－１５自动开关①电动操作的必要性;提出了几种更改操作机构的方案进行比较,对其中所采用方案的机构设计过程、保护元件尺寸、材料的改进作了简单介绍,最后对Ａ－１５自动开关今后的改进方向提出一些意见。     

ATSE双电源自动开关浅谈

<正>国家标准以及IEC标准将ATSE分类为PC级和CB级两个级别,由于CB级ATSE存在着体积大,动作速度慢,机械联锁可靠性较差等缺点,其应用领域正在逐步缩小,而PC级ATSE由于其结构简单,体积小,自身联锁,转换速度快,安     

钢笔摔出的发明梦获一台笔记本电脑31000元资金

钢笔摔了不会坏，汽车相撞不会燃，嘈杂的声音能发电……两年间，17岁男孩，21项专利申请，这不是传说。张智剑是重庆市綦江中学高二九班学生，被同学们称为小小爱迪生。最近，他又申请了自己的专朱小一汽车油管自动开关，他说，有了这个设备，汽车侧翻相撞不会漏油燃烧。7支钢笔做实验 “啪”，一声清脆的响声，一支新钢笔摔在地上，笔尖翘成一个弯，张智剑这支心爱的钢笔就此报废了。他是一个十分珍惜钢笔的人，此时心痛不已。     

Information Model for Connection Management in Automatic Switched Optical Network

The three types of connections (Permanent Connection, Soft Permanent Connection and Switched Connection) provided by ASON can adapt the requirement of different network services. Management and maintenance of these three connections are the most important aspect of ASON management. The information models proposed in this paper are used for the purpose of ASON connection management. Firstly a new information model is proposed to meet the requirement for the control plane introduced by ASON. In this model, a new class ControlNE is given, and the relationship between the ControlNE and the transport NE (network element) is also defined. Then this paper proposes information models for the three types of connections for the first time, and analyzes the relationship between the three kinds of connections and the basic network transport entities. Finally, the paper defines some CORBA interfaces for the management of the three connections. In these interfaces, some operations such as create or release a connection are defined, and some other operations can manage the performance of the three kinds of connections, which is necessary for a distributed management system.