参数的螺旋翅片管,在低速区更为明显。而且H Nu=38628Re32 型鳍片管的不积灰性能亦优于相同结构参数的螺 Eu=2 6IRe 2814 旋翅片管

Ch. 22 Unit root in Vector Time series 1 Multivariate Wiener Processes and multivari- ate FCLT Section 2.1 of Chapter 21 described univariate standard Brownian motion W(r) as a scalar continuous-time process(W: rE0, 1-R). The variable W(r) has a N(O, r)distribution across realization, and for any given realization, w(r) is continuous function of the date r with independent increments. If a set of k such independent processes, denoted

September 12, 2001 The Problem of Evil Last time we considered the ontological argument for the existence of God. If the argument is cogent, then we have reason to be rational theists, i.e., to maintain that there are justifying reasons for belief in God's existence. Today we're going to consider an argument for atheism which purports to show that theism is incoherent, i.e., that theism entails a contradiction. If the argument works, then the only option available to the theist would be irrational theism: belief in God's existence in spite of justifying reasons supporting

一、操作程序 1、抽真空:接通真空油泵电源,打开通路中的阀门,抽真空至适当程度。 如果管路系统密闭良好,在负压达到要求后尽可能将管道通路中阀门关掉, 然后关闭真空油泵,延长油泵寿命。 2、加料:利用系统负压,将原料吸入盛料器,容量不得超过一半

Natural Convection Where we’ ve been. Up to now, have considered forced convection that is an external driving force causes the flow. Where we’ re going: Consider the case where fluid movement is by buoyancy effects caused by temperature differential Heat Transfer Su Yongkang

We might distinguish between two types of constitutional re- gimes, one codifying, the other transformative. A codifying consti- tutional regime aims at preserving something essential from the then- current constitutional or legal culture to protect it against change in the future; a transformative constitutional regime aims at changing g something essential in the then-current constitutional or legal cul- ture to make it different in the future. The picture of the codifying

Contemporary globalization both requires, and permits, the re-casting of international law away from a\society of states \model and towards a model of global society and even global community. By effectively eliminating both time and space factors in social interaction, globalization is changing the nature of global social relations, intensifying the obsolescence of the society of states\model, and demanding al fundamental change in the social theory of international law towards a global society of persons. Because of these changes

1.掌握现象相似的必要条件和充分条件。 2.相似准数的概念。 3.相似三定理的内容。 4相似转换法求相似准数。Re、Eu、G准数的表达式及物理意义

1. Re-derive the equation for equilibrium swelling of a polyelectrolyte gel where the polymer chains contain a basic ionizable group that becomes positively charged with decreasing pH

Introduction to Probability Probability is the last topic in this course and perhaps the most important. Many Igorithms rely on randomization. Investigating their correctness and performance re- quires probability theory. Moreover, many aspects of computer systems, such as memory