Heat Transfer Su Yongkang School of Mechanical EngineeringInternal Flow Heat Transfer Where we’ve been …… Introduction to internal flow, boundary layer growth, entry effects Where we’re going:

实验一 流体流动阻力的测定 实验二 离心泵特性曲线的测定 实验三 恒压过滤实验 实验四 传热综合实验 实验五 筛板式精馏塔的操作及塔板效率测定 实验六 洞道干燥实验 综合实验一 气体搅拌萃取塔液-液萃取实验 综合实验二 间歇精馏实验 演示实验 柏努利方程实验 雷诺实验

Software engineers should avoid re-developing software already developed Types of reuse: Reuse of expertise Reuse of standard designs and algorithms

1. re- : 重、再return, retreat, recall, regress 2. tri-: 三 tricycle, tricar, triweekly 3. multi-: 多 multiparty, multinational 4. dis-: 除去 disarm, disroot, discourage

Cardiovascular Problems Associated with Space FlightOrthostatic Intolerance upon Re-entry

一、选择与填空 1. C 2. Re 和 e/d ；e/d 3. C 4. B 5. B

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Suppose we want to move a satellite in a circular orbit to a position ∆ϑ apart in the same orbit, in a time ∆t (assumed to be several orbital times at least). The general approach is to transfer to a lower (for positive ∆ϑ ) or higher (for ∆ϑ < 0 ) nearby

Why search (and cite) the literature of your field? Credibility: To be sure that your work is based on current, sound researchthe-- best in your field. Focus: To be able to place your work in context. Efficiency: To be sure that you're not duplicating work

N ow that we're familiar with the structure and preparation of alkenes, let's look at their chemical reactions. The characteristic reaction of alkenes is addition to the double bond according to the general equation: