Computer technologies have been changing the environment of engineering design-enabling MDO Hardware: Advances in processor speed, memory and storage Software: Powerful disciplinary analysis and simulation programs(e.g. Nastran, Fluent...)

Explain or explore something, (e. g, process of make a machine, the causes of a natural or ocial phenomenon, the planning of a project, or a solution of a problem) Description mainly deal with appearance and feelings, and narration with events and experiences, unlike the two, the exposition mainly deals with relationships as well as processes

Handout 6: Proportional Compensation Eric Feron Feb25,2004 Plant under study: 1/10 G(s)=(s+1)(s/10+1)2 Compensation Scheme: We adjust the gain K in the feedback loop (draw the feedback loop below)

Ambulance always returns home with each service; standard M/G/1 applies a But suppose we have an emergency repair vehicle that travels directly from one customer to the next?

2.Storage Facilities 2.1 Use of off site facilities- are they controlled 2.1.1 Where the manufacturer commissions the services of (or contracts to off facities e.g. airport

NETWORK ECONOMIES Business network bamboo\network smuggling human trafficking chamber of commerce, untary- loca rotary, country club, etc Compulsory-belong to an organization. to survive or operate successfully e.g. accountant, bankers. Concept of networks ocially b inding ties hetween actors Global tribes- combination of ethnic

一、排队系统的基本要素 二、 Little公式 三、M/M/排队系统 四、M/M/c排队系统 五、有限顾客源排队系统 六、M/G/1排队系统

一、矩阵的满秩分解 1.定义:设A∈C(r>0),若存在矩阵F∈Cx及G∈C,使得A=FG,则称其为A的一个满秩分解

第7章有机金属化学(二) 1827年 Zeise盐[PtCl3C2H4 1952年G. Wilkinson Fe(5-C3Hs)2结构的测定 1955年 Fischer n66-芳基化合物 1973年. Wilkinson,分离出W(CH3)6

第一题: 1.y(t)=u(t-t) 使用拉式变换的定义: Y(s)=\u(t-r) 令T=t-T, Y(s)=Se-ru()= u()dt=(s) 所以,G(s)=ex