一块含0.1%C的碳钢在930℃渗碳,渗到0.05cm的地方碳的浓度 达到0.45%。在t>0的全部时间,渗碳气氛保持表面成分为 1%,假设D=2.0×10-5exp(-10000/RT)(m2/s)

Part I: Fill-In-The-Blanks(10\2=20 points) 1. The branch of accounting which aims at serving external users is called accounting 2. A credit entry decreases asset and accounts or increases liabi owner's equity, and revenue accounts

16.61 Aerospace Dynamics Spring 2003 Example Given: Catapult rotating at a constant rate(frictionless, in the horizontal plane) Find the eom of the particle as it leaves the

ECTURE +2 RIGId BoDY DYNAnIC 工Ap1CAT105FA。R工 GENERAL ROTATIONAL JYNMICS EULER'S EQuATIoN of MOTIoN TORQVE fREE SPECIAL CAsEs PRIMARY LESSONS 3D RoTATONAL MOTION MUCH MORE COMPLEX

一、光程 光在真空中的速度c=1s= 光在介质中的速度=1/√ec-n

flow networks Definition. A flow network is a directed graph G=(, E)with two distinguished vertices:a source s and a sink t. Each edge(u, v)E E has a nonnegative capacity c(u, v). If(u, v) E, then c(u, v)=0 Example: c 2001 by Charles E Leiserson

Shortest paths Single-source shortest paths nonnegative edge weights Dijkstra's algorithm: O(E+ vlg n General

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Franklin Allen and Douglas gale Topic 1: What is Corporate Finance? Readings A Ph. D. textbook that provides basic coverage of some of the main topics is J. A. de Matos. Theoretical Foundations of Corporate Finance, Princeton: Princeton University Press, 2002) There are many MBa textbooks. A very good one is R.A. Brealey and S.C. Myers, Principles of Corporate Finance, 7th edition(New York

由定理3.1.1的4)可知:外测度确为“体积”概念的推广。非常令人遗 憾的是:外测度对一些集合而言无法满足可加性,即人们可构造这样一族互不相 交的集合S(1,2…,满足mUs1<∑ms…,于是我们只有退而求 其次,探索可以限制在什么范围内满足可加性