Chapter 4 Website design 4.1 General Design of e-Business website 4.1.1 Defining the task Once you have decided to hire [COMPANy], the first step is to define the project very carefully and very thoroughly. It is critical to put down on paper what is and isn't included for the agree-to price. We call this the\Statement of Work\and include it as part of our proposal. For us to prepare this document, we're going to have a lot of questions to ask. If you haven,'t done so

一、电源 将其他形式能量转变成电能的装置。 从电流线闭合看:jds=0 从能量守恒及转换看:E=},欲形成稳恒电流,电路中电源不可少且电路闭 合

一、孤立导体的电容 1、定义 静电平衡时,孤立导体表面电荷分布由其几何形状唯一确定,带一定电量q的孤 立导体其外部空间的电场E、电势U导亦完全确定。据电势叠加原理,当其电量增加若 干倍时,则U也将增加若干倍,即 q=CU,或C=9 此比例系数C即孤立导体的电容量

一、静电场的环路定理 已知电荷分布,利用电场叠加原理、高斯定理可计算电场分布,但因E为矢量, 不够方便,可引入另一物理量—电势来研究问题方便

State-Space Systems e Ful-state feedback Control How do we change the poles of the state-space system? Or, even if we can change the pole locations Where do we change the pole locations to? How well does this approach work?

Interpretations With noise in the system, the model is of the form =AC+ Bu+ Buw, y= Ca +U And the estimator is of the form =Ai+ Bu+L(y-9,y=Ci e Analysis: in this case: C-I=[AT+ Bu+Buw-[Ac+ Bu+L(y-gI A(-)-L(CI-Ca)+B

State-Space Systems What are the basic properties of a state-space model, and how do we analyze these? e Time Domain Interpretations System Modes Copyright 2001 by Jonathan How

The BIOTOL team This series of books has been developed through a collaboration between the Open universiteit of the OPEN UNIVERSITEIT, THE NETHERLANDS Netherlands and University of Green wich (formerly Thames Polytechnic)to provide a whole Prof M C E. van Dam-Mieras library of advanced level fle rof w. H. de jeu exible learning Prof ]. de vries

Composition Structure Many good compositions of academic writing (e.g. report, an essay, an assignment, a project) have their organizational structure or their ways in which the different parts are linked together. The following general plan for three paragraph composition will help to control the overall structure of your writing

Test What's your self-image? If you are not certain about it, you might as well finish the questionnaire and What's your favorite color of clothes? A. The color of the Earth and your nationality B. Grey and sedative color C. Simple and pure colors like blue D. Lovely and tender color. E. Bright and symmetrical color