电能的优点:电能适宜于大量生产、集中管理、 远距离传输、灵活分配及自动控制,因而电能 成为现代最常用的一种能源。 电机的定义:电机是与电能的生产、传输和使 用有关的能量转换机械

《电路与模拟电子技术》课程教学资源（PPT课件讲稿）第2章 电路的分析方法

风力发电塔作为一类特殊的高柔结构,顶部支撑的风机在工作状态下对塔身产生动态激励,目前的风电塔振动实测通常采用接触式传感器.为发展风电塔现场非接触测试技术,本文对激光遥测方法进行阐述,利用加速度计和激光遥测设备对某1.5 MW风电塔进行环境脉动激励下的动力实测,对两种仪器的现场使用及测试结果进行对比,分析遥测方法的优势.利用得到的多组实测信号,分别采用峰值拾取法和随机子空间识别法进行分析处理,获得该风电塔的自振频率

The Economic Case for Electrochemical Innovation New Horizons in Electrochemical Science and Technology. National Academy Press: Washington, D.C., 1986. copyright P.A.Mabrouk, 2001. All rights

Net flow of electrons from MNet flow of electrons from to solute solute to m .Ef more negative than Eredox more positive than Eredox more cathodic more anodic

华北理工大学：《电化学分析实验》课程教学大纲

Junction potentials Whenever we change electrolyte or solvent there is a cost in that we create a double layer (electrode)which has a small but often measureable potential We call this potential a junction potential

5 separate events must occur: -O must be successfully transported from bulk solution(mass transport) -O must adsorb transiently onto electrode surface (non-faradaic) CT must occur between electrode and (faradaic)

Q: What Experiment is This? Excitation Name of experimenttype of excitation time

Desired voltage achieved by anode cathode stacking cells (in series) Fuel reformer Natural gas, alcohol