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

中药制剂是指将中国的中药（包括中药材或饮片及其 方剂）制成用一防病、治病目的并适合于患者应用的 制剂。 中药是指以中医药传统理论体系表述药物性、功效和 使用规律，按其理论指导应用的药物，所以也称传统 （中）药

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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

A pendulum is a rigid body suspended from a fixed point (hinge) which is offset with respect to the body's center of mass. If all the mass is assumed to be concentrated at a point, we obtain the idealized simple pendulum. Pendulums have played an important role in the history of dynamics. Galileo identified the pendulum as the first example of synchronous motion, which led to the first successful clock developed

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(1)理解微生物处理废水的基本原理,掌握活性污泥法的原理与常用的几种工艺流程,掌握生物膜法的原理与几种典型处理工艺;掌握厌氧生物处理技术的机理与影响因素以及处理工艺 (2)熟悉污泥的性质和常见的处理技术

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In this lecture, we consider the motion of a 3D rigid body. We shall see that in the general three dimensional case, the angular velocity of the body can change in magnitude as well as in direction, and, as a consequence, the motion is considerably more complicated than that in two dimensions. Rotation About a Fixed Point We consider first the simplified situation in which the 3D body moves in such a way that there is always a point, O, which is fixed. It is clear that, in this case, the path of any point in the rigid body which is at a