1. 双稳态触发器 2. 寄存器 3. 计数器 4. 时序逻辑电路的分析( 略) 5. 由555定时器组成的单稳态触发器和无稳态触发器

§10.1 二重积分的概念与性质 一、二重积分的概念 二、二重积分的性质 §10.2 二重积分的计算法 一、利用直角坐标计算二重积分 二、利用极坐标计算二重积分 §10.3 三重积分 一、三重积分的概念 二、三重积分的计算 §10.4 重积分的应用 1.立体的体积 2.曲面的面积 3.质心 4.转动惯量 5.引力

1. 反馈的基本概念 2. 放大电路中的负反馈 3. 振荡电路中的正反馈

1. 半导体的导电特性 2. PN结及其单向导电性 3. 二极管 4. 稳压二极管 5. 双极型晶体管 6. 光电器件

A. J. Menezes, P. C. van Oorschot and S. A. Vanstone. Handbook of Applied Cryptography, CRC Press, 1997. Bruce Schneier. Applied Cryptography, Second Edition: Protocols, Algorthms, and Source Code in C (cloth) John Wiley & Sons, Inc.) 1996 Douglas R. Stinson, Cryptography (Theory and Practice), CRC Press 1995 Resources

Definition: Group A set G of elements and operator @ form a group if: for all x,y in G, x @ y is also in G (inclusion) there is an identity element e such that for all x in G, e@x = x for all x in G, there is an inverse element x

Modular arithmetic – Used to define a finite field – a = b mod n means that if a and b are divided by n they produce the same remainder – a*b mod n can result in 0 even if a and b are not 0

Cryptographic protocol – Distributed algorithm – Based on cryptographic building blocks – To achieve a security related goal Examples: – Entity Authentication – Key Establishment:Key Distribution(Key enveloping, Key transport), Key agreement – Electronic Payment

2-1飞机沿与水平成仰角θ的直线作匀速飞行,如题2-1图(a)所 示。已知发动机推力F1,飞机重量G,试求飞机的升力F和阻力F2 的大小

5-1电线杆AB长10m,在其顶端受8.4kN的水平力作 用。杆的底端A可视为球形铰链,并由BD、BE两钢索维持杆的平 衡(见题5-1图(a)),试求钢索的拉力和点A的约束力