4.1粘性流体的两种状态是什么?其各自的定义是什么?(参考分数:5分) 4.2流态的判断标准是什么?(参考分数:5分) 4.3某管道直径d=50mm,通过温度为1℃的中等燃料油,其运动粘度v=5.06×10-m2/s试求:保持层流状态的最大流量。(参考分数:6分)

10.1 The Regulation of Markets and Institutions Financial system is one of most intensely regulated sectors of the U.S economy

The lever arm is the perpendicular distance from the axis of rotation to a line drawn along the direction of the force

The Stock Price Assumption Consider a stock whose price is s In a short period of time of length 8t, the return on the stock is normally distributed

Standard approach to Estimating Volatility Define on as the volatility per day between day n-1 and day n, as estimated at end of day Define S: as the value of market variable at end of day i

A bank has sold for $300,000 a European call option on 100,000 shares of a nondividend paying stock S=49,K=50,=5%,=20% T=20 weeks,μ=13%

国际上有影响的CAD系统大致可分为两类:一类发展较早,系统庞大,称它 们为传统型CAD系统;另一类是近几年发展起来的,功能新颖,虽然目前规模较 小,但有较好的发展前景的,称它们为改进型CAD系统。当然这二者并无严格界 限,而且它们之间技术上也正在相互渗透,处于共同发展之中。 传统型CAD系统,一般已有之十余年的历史。它们起源于60年代末或70年 代初期。如 CADDS是CV公司1969年推出,UGI是1975年起家,SDRC公司于 1967年成立, CADAM系统是洛克希德飞机公司1965年着手研制, CATIA起源于 975年,还有像 Applicon、 Inter-graph-、cdc的iCe、 Calma DDM、auto trol的S7000等也是在同一时期发展起来的

Announcements Homework 8: due Friday Nov. 11@ 6: 00 PM ←Chap.7:#7,22,28,33,35,44,45,50,54,61,and65

Aggregation and Welfare Content: Consumer's' surplus Aggregation Representation consumer