Department of Electrical Engineering and Comput 6.003: Signals and Systems--Fall 2003 PROBLEM SET 6 Issued: October 21 2003 Due: October 29. 2003 Reading assignments Lectures #12-13& PS#6: Chapters 6&7(through Section 7. 2 )of O&w

REMINDER: Quiz 1 will be held from 7: 30 to 9: 30 p. m. Tuesday, October 14 The quiz will cover material in Chapters 1-3 of o&w Lectures and Recitations through september 26, Problem Sets 1-3 and that part of Problem Set 4 involving problems from Chapter 3 Reading assignments

Home Study Exercise (E1)O&W3.46(a)and(c) (t) and y(t) are continuous-time periodic signals with a period= To and Fourier series representations given b

MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Electrical Engineering and Computer Science 6.003: Signals and Systems-Fall 2003 PROBLEM SET 1 SOLUTIONS (E1)(O&W154) (a) For the r=l case, we have

1.S层 CSS层主要使用SPAN和DV来确定定位页面内容的位置,其属性由全球广域网协会 W3C的 Positioning HTML Elements with Cascading Style Sheets(使用级联样式表确 定HTML元素的位置)定义,主要通过Cs样式来实现对内容的定位。CSS层具有很好 的兼容性,可以在大多数浏览器中被正确浏览

Through the study of these two periods of class, the students should understand the text correctly. The new words should be read fluently. The w = new words and the expressions in the text should be learnt by heart

第一章化学热力学基础 1-1:注意S单位制,PaxL1×103=J.(1)-1750,(2)3500J 1-2:(1)-3000J;(2)-300J注意符号和运算准确 1-3:体系复原是△z=0(△=0),非状态函数W≠0 Wp外△V只适用于(恒外压过程的每一步不适用于有多步的

以上仅考虑了单个力学量的测量值和测量几率,两个或两个以上力学量的测量有什关 系? 在任意态v),力学量A的不确定度由方差决定 (△4)=w(a-(4)y)=),其中12=(-(4)y) 力学量B的不确定度由方差决定 (△B)=(B-(8)l)-gg),其中g)(2-)v A,B两个力学量的不确定关系由(④△)(△B)描述

6.2功函数和接触势差 1.热电子发射和功函数 实验指出,热电子发射电流密度:j~e-W:功函数金属中,电子处于势阱高度为X(正离子的吸引),如图XCH006008所示,当电子从外界获得足够的能量,有可能脱离金属,产生热电子发射电流

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