Background About the author: Floyd Dell (1887- 1969), U.S. versatile and prolific writer and an editor for several newspapers and magazines

MASSACHVSETTS INSTITVTE OF TECHNOLOGY epartment of Electrical Engineering and Computer Se lence 001--Structure and Interpretation of Computer Programs Spring Semester, 2005 Quiz I- Sample Solutions

46 Electroacoustic Devices P. H. Rogers Transduction Mechanisms. Sensitivity and Source Level. Reciprocity Canonical Equations and Electroacoustic Coupling. Radiation Impedance.Directivity

1.初步了解化学反应速率、速率方程、碰撞理论、过渡状态理论和活化能概念；2.理解并会用浓度、温度、催化剂诸因素解释其对化学反应速率的影响；3.初步掌握阿仑尼乌斯公式的应用，会用其求算活化能及某温度下的反应速率；4.理解反应分子数和反应级数的概念，会进行基元反应有关的简单计算；5.初步掌握零级、一级和二级反应的特征。 4.1 化学反应的平均速率和 瞬 时速率 Average rate and instantaneous rate of chemical reaction 4.3 影响化学反应速率的因素 Influential factors on chemical reaction rate 4.2 反应速率理论简介 Brief introductory to reaction rate theory 4.4 化学反应机理及其研究方法 Chemical reaction mechanism and the study methods

1．了解化学变化过程中的热效应、恒容反应热和恒压反应热的概念与测定；会写热化学方程式； 2．初步了解焓的概念，知道焓变是化学反应自发过程的一种驱动力； 3．会进行有关热化学的一般计算； 4．初步了解熵、熵变和绝对熵的概念，知道熵变是化学反应的自发过程的另一种驱动力； 5．初步了解热力学第一、第二、第三定律的概念； 6．初步了解吉布斯自由能及吉布斯-亥姆霍兹方程，初步学会用其判据化学反应的自发性； 7．掌握化学平衡状态及标准平衡常数概念，会进行简单的化学平衡移动判断及有关计算。 3.1 热化学和焓 Thermochemistry and enthalpy 3.2 熵和熵变—反应自发性的另一种判据 Entropy and entropy change — judgment for spontaneous reaction 3.3 自由能——反应自发性的最终判据 Free energy－the determined criterion for the spontaneous process 3.4 平衡状态和标准平衡常数Equilibrium and standard equilibrium constant

Review Show the homework and note book on your desk Practise measurement of attitude of planes and lines in the models

WEEE and RoHS SUD Waste Electrical and Electronic Equipment 废弃电子电气设备 TUV The restriction of the use of PRODUCT SERVICE certain hazardous substances in electrical and electronic equipment

In this unit, you will first listen and then talk about college life read about how much there is to learn in college write about your most memorable examination practice reading skills: reading with a purpose practice forming compound and complex sentences learn to fill in registration forms and design name cards visit culture salon about college life in the United

1. cherish: to care for tenderly; love; to keep a feeling deeply and firmly in mind Examples: The old man cherished the girl as if she were his daughter. The child has been away for more than three years and his parents always cherish the hope that he will come back soon

Basic concepts Basic problem: We measure range and phase data that are related to the positions of the ground receiver, satellites and other quantities How do we determine the \ best position for the receiver and other quantities What do we mean by best \ estimate?