1 Regression Regression is probably the single most important tool at the econometrician's disposal. What is regression analysis? It is concerned with describing and evaluating the relationship between a given variable (usually called the dependent variable) and one or more other

The PD Process coordinates the specific research activities such as product design, process development, engineering plant design, marketing strategy and desig with the aim of producing an integrated approach to the development of new products. The overall aim is to create a product that an individual consumer or a food manufacturing company or food service organisation will buy. The two parts of product development-the knowledge of the consumer's needs/wants and the knowledge of modern scientific discoveries and technological

1.1课前导读 1.1.1 Active Server Pages简介 1.1.2ASP的新特性 1.2课堂教学 1.2.1基本概念 1.2.1ASP的运行环境 1.2.2在 Windows98/Me中安装PWS 1.2.3在 Windows2000/XP中安装S

一、例题精解 【例题3.1】在R、L、C元件串联的电路中,已知R=30,L=127mh,c=40uF, 电源电压u=2202sin(314t+20°)V.(1)求感抗、容抗和阻抗;(2)求电流的有效值1 与瞬时值i的表达式;(3)求功率因数cos;(4)求各部分电压的有效值与瞬时值的表 达式;(5)作相量图;(6)求功率P、Q和S

一、例题精选 【例题5.1】有一电容元件,C=0.5F,今通入一三角波形的周期电流(图5.1(b), (1)求电容元件两端电压uc;(2)作出u波形;(3)计算t=2.5s时电容元件的电 场中储存的能量。设uco=0

一、例题精解 【例题6.1】图6.1(a)所示电路中,已知R=R1=R2=R3=22,C=1F,L=1H, E=12V。电路原来处于稳定状态,t=0时闭合开关S.试求初始值i(0+)ic(0+)、u(0+)、 uc(0) R

例1.某p型半导体掺杂浓度NA=10cm3少子寿命=10us在均匀光的照射下产 生非平衡载流子,其产生率g=1018/cm3·s试计算室温时光照情况下的费米能级 并和原来无光照时的费米能级比较。设本征载流子浓度=1010cm-3 p. =N, =n, exp(-EE) 思路与解:(1)无光照时空穴浓度

1适用范围 本方法是用王水作消化剂从水样中提取痕量元素。本方法适用于各类水,其中水中悬浮 颗粒物浓度小于20g/L,总有机物浓度(以碳表示)小于5g/L。 王水消化法适用于释放水样中Ag、Al、s、B、Ba、Be、Ca、Cd、Co、Cr、Cu、Fe、 Hg、K、g、Mn、Mo、Na、Ni、P、Pb、Sb、Se、Sn、r、ti、v、n,不适用于耐火化合 物(如SiO2、TiO2、Al2O3)的消化

一、 名词解释 管理 企业管理 软管理 “七 S”模式 二、简答题 1、 企业管理的任务是什么？ 2、 现代企业管理的发展趋势是什么？ 3、 软管理的发展趋势是什么？

Unit 1 How tall are you? Unit 2 Last weekend Unit 3 Where did you go? Unit 4 Then and now Recycle Mike's happy days Appendix 1: Songs in each unit Appendix 2: Words in each unit Appendix 3: Vocabulary Appendix 4: Useful expressions Appendix 5: Proverbs Appendix 6: Short plays Appendix 7: Irregular verbs Appendix 8: English pronunciation patterns