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3.1 货币的时间价值 货币的时间价值 3.2 利息公式 3.3 等值计算实例 3.4 常用的还本付息方式 常用的还本付息方式 3.5 电子表格运用
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Lecture D33: Forced Vibration Fosinwt m Spring Force Fs =-kx, k>0 Dashpot Fd =-ci, c>0 Forcing Fext Fo sin wt Newton's Second Law (mix =CF) mx+cx+kx= Fo sin wt =k/m,=c/(2mwn)
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第一章 概论 第二章 室内设计与人体工程学 第三章 室内空间设计 第四章 室内空间界面和配套设施的装饰设计 第五章 室内照明设计 第六章 室内色彩设计 第七章 室内陈设与绿化设计
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第一节人的生理特性 一、人的感知特性 1、人的感知反应过程 人机系统(见图3-1) 人的神经系统结构(见图2)
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When the only force acting on a particle is always directed to- wards a fixed point, the motion is called central force motion. This type of motion is particularly relevant when studying the orbital movement of planets and satellites. The laws which gov- ern this motion were first postulated by Kepler and deduced from observation. In this lecture, we will see that these laws are a con- sequence of Newton's second law. An understanding of central
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固体的分类:按原子(或分子)的聚集状态分为晶体和非晶体(可以互相转换)。晶体的特点:基本质点在空间规则排列,具有规则的外形;具有一定熔点;各向异性
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In this lecture, we consider the problem of a body in which the mass of the body changes during the motion, that is, m is a function of t, i.e. m(t). Although there are many cases for which this particular model is applicable, one of obvious importance to us are rockets. We shall see that a significant fraction of the mass of a rocket is the fuel, which is expelled during flight at a high velocity and thus, provides the propulsive force for the rocket
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In this lecture, we will consider how to transfer from one orbit, or trajectory, to another. One of the assumptions that we shall make is that the velocity changes of the spacecraft, due to the propulsive effects, occur instantaneously. Although it obviously takes some time for the spacecraft to accelerate to the velocity of the new orbit, this assumption is reasonable when the burn time of the rocket is much smaller than the period of the orbit. In such cases, the Av required to do the maneuver is simply the difference between the
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D244BD RIGID BODY DYNAMICS KINETIC EWEGY In echure we derwed am kinenc a susem u dm T= Fere ts the velouty relanve to G. for a nald body we ca wate Uing the vechor nidontklyAxB=Ax
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In this lecture, we will derive expressions for the angular momentum and kinetic energy of a 3D rigid body. We shall see that this introduces the concept of the Inertia Tensor. Angular Momentum We start form the expression of the angular momentum of a system of particles about the center of mass
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