Polar coordinates极坐标 The position of a point P in polar coordinates is defined by the radial coordinate r and the angular coordinateθ. 一点P的极坐标用径向坐标r和角坐标θ表示 P(r,0) displacements:位移:urue strains:应变:

Introduction-1导引-1 The finite element method is an extension of the analysis techniques(matrix method) of ordinary framed structures. 有限元法是刚架结构分析技术的扩充。 The finite element method was pioneered in the aircraft industry where there was an urgent need for accurate analysis of complex airframe 有限元法首先应用于飞机工业

November 29, 2001 Duty and Famine: Singer Last time we considered Mill's version of Utilitarianism, called Eudaimonistic Utilitarianism characterized by what he calls \the greatest-happiness principle\: You ought always to act so as to maximize happiness, i.e., the right act is the act that results in the greatest amount of happiness overall. The \greatest-happiness principle\, however, just states one version of Utilitarianism. Other versions of

24.00: Problems of Philosophy Prof. Sally Haslanger October 31, 2001 Freewill: Hard Determinism 1. What is our investment in freewill? Not just a sentimental attachment: At the root of how we organize our own lives(deliberation matters). At the root of how we interact with others(presupposed by praise and blame, punishment)

ral questions that might arise concerning personal identity. When we ask\Who am I? we might be being we are, what our possiblities are, under what conditions\I\would continue to exist. We'll begin our discussionon n wonder what\makes us tick\, what we ultimately value, what matters to us. We might also be asking what sort personal identity with the latter set of questions Consider a parallel set of questions (Id) Under what conditions are baseball-events events in the same game? E. g, under what conditions are a

I. Racist Propositions Appiah distinguishes three importantly different ideas relevant to race and racism: Racialism: ...there are heritable characteristics, possessed by members of our species, that allow us to divide them into a small set of races, in such a way that all the members of these races share certain traits and tendencies with each other that they do not share with members of any other race. These traits and tendencies characteristic of a race constitute, on the racialist view, a sort of racial essence; and it is part of the content of racialism that the essential

Evidentialism(Clifford): \It is wrong abways, everywhere, and for anyone, to believe anything upon insufficient evidence\ (p.113) Pragmatism(James): Faced with a genuine choice about what to believe, and where evidence does not decide the matter, we are free to decide it however we want. Oour passional nature not only lawfully may, but must, decide an option between propositions, whenever it is a genuine option that cannot by its nature be decided on intellectual grounds. (127) In the relevant cases, we are not

Introduction 1-2 Definition of a Fluid Fluid mechanics: the behavior of The solid object will no change fluids at rest and in motion inside the a closed container A fluid is a substance that deforms continuously under the application The liquid will change its shape of a shear(tangential) stress no to conform to that of the matter how small the shear stress container and will take on the may be

16-1 LC Circuit LC Oscillations 振荡电路电磁振荡 16-2 Generation& Radiation of an Electromagnetic Wave电磁波的产生和辐 射 16-3 The Properties of Electromagnetic Waves Electromagnetic电磁波的基本性质 16-4 Energy in Electromagnetic Waves 电磁波的能量 16-5 Electromagnetic Spectrum 电磁波譜

Medical genetics Mutations(changes) in the mitochondrial chromosome are responsible for a number of disorders