一、教学目的： 1．写出香豆素的母核结构。 2．描述香豆素的结构特征及其分类。 3．简述香豆素的生物分布。 4．详述香豆素和基本性质及常规检识方法

一、教学内容： 1．中药中各类化学成分概况简介。 2．各类化学成分简要介绍。 3．中药化学成分溶解性（极性）比较

1.1.1仿照图1.1.2①石英预制棒加热炉温度控制系统方框图,画出图1.1.1中光纤拉丝 盘转速控制的电子系统方框图,并加以说明

7.1.1在图题7.1.1所示的各电路中,哪些元件组成了级间反馈通路?它们所引入的反馈 是正反馈还是负反馈?是直流反馈还是交流反馈?(设各电路中电容的容抗对交流信号均可忽 略) 解图题7.1.1a中,由电阻R2、R1组成反馈通路,引入负反馈,交、直流反馈均有;b图中, 由Ra引入负反馈,交、直流反馈均有,由Rn、R引入直流负反馈;c图中,由R1、Ra引入负反 馈,交、直流反馈均有;d图中,由R2、R1引入负反馈,交、直流反馈均有;e图中,由A2、R3引人 负反馈,交、直流反馈均有:图中,由R。引入负反馈,交、直流反馈均有

7-1 概述 7-2 朗肯循环 7-4 蒸汽再热循环 7-5 蒸汽回热循环 7-6 热电联供循环 7-7 现代新型动力循环

第 4 章 高分子材料 1、工程塑料 2、合成纤维 3、合成橡胶 4、胶粘剂 5 章 陶瓷材料 1、普通陶瓷 2、特种陶瓷 6 章 复合材料 1、材料复合原则 2、复合材料性能 3、非金属基复合材料 4、金属基复合材料 第7章 功能材料 1、电功能材料 2、磁功能材料 3、热功能材料 4、光功能材料 5、隐形/智能材料 6、纳米材料

2.1 The postulate In 1864, James Clerk Maxwell proposed one of the most successful theories in the history of science. In a famous memoir to the Royal Society [125] he presented nine equations summarizing all known laws on electricity and magnetism. This was more than a mere cataloging of the laws of nature. By postulating the need for an additional term to make the set of equations self-consistent

One of the most powerful tools for the analysis of electromagnetics problems is the integral solution to Maxwell’s equations formulated by Stratton and Chu [187, 188]. These authors used the vector Green’s theorem to solve for E˜ and H˜ in much the same way as is done in static fields with the scalar Green’s theorem. An alternative approach is to use the Lorentz reciprocity theorem of § 4.10.2, as done by Fradin [74]. The reciprocity

3.1 概述 3.2 晶体管高频小信号等效电路与参数 3.3 单调谐回路谐振放大器 3.3.1单级单调谐回路谐振放大器 3.3.2多级单调谐回路谐振放大器 3.4 双调谐回路谐振放大器 3.5 谐振放大器的稳定性 3.6 谐振放大器的常用电路

The static electromagnetic field 3.1 Static fields and steady currents Perhaps the most carefully studied area of electromagnetics is that in which the fields are time-invariant. This area, known generally as statics, offers (1)the most direct op￾portunities for solution of the governing equations, and (2)the clearest physical pictures