一. 室内给排水工程的内容 室内给排水工程主要介绍室内给水、排水和热水供应工程的设计原理及方法，同时还要 介绍一些施工及管理方面的基本知识和技术。这是一门专业技术课程，是给排水专业的必修 课

前几章介绍了植物的各种功能代谢,这些功能代谢的整合(integration), 就表现出细胞的分裂、分化与生长,进而表现为植株的发育。 生长与发育贯穿于植物的一生。植物的生长(growth)是指植物在体积、重量等形态 指标方面的变化,是一种量的不可逆增加。植物分化(different iation)是指植物细胞在 结构、功能和生理生化性质方面发生的变化,是一种反映不同细胞的质的变化。而所谓发育 ( development)则是植物生长和分化的总和,从而形成执行各种不同功能的组织与器官, 这种质的转变就是发育。生长为发育奠定基础发育则是生长的必然结果,生长和发育相辅 相成,密不可分。从分子生物学的观点来看,植物的生长分化和发育的本质是基因按照特 定的程序表达而引起植物生理生化活动和形态结构上的变化

一、SQLServer的身份验证 二、创建和管理用户登录的方法 三、固定服务器角色和服务器角色 四、管理数据库权限的方法

1 Model problem 1.1 Poisson Equation in 1D Boundary Value Problem(BVP) (x)=∫(x) (0,1),u(0)=(1)=0,f Describes many simple physical phenomena(e.g) Deformation of an elastic bar Deformation of a string under tension Temperature distribution in a bar The Poisson equation in one dimension is in fact an ordinary differ tion. When dealing with ordinary differential equations we Poisson equation will be used here to illastrate numerical techniques for elliptic PDE's in multi-dimensions. Other techniques specialized for ordinary differen tial equations could be used if we were only interested in the one dimension

Course Outline Overview of pdes(1) o Finite differences methods(6) Finite volume methods(3) Finite element methods(7) Boundary integral methods(6)

Despite its apparent simplicity this equation appears in a wide range of dis m heat 7 to financial er we will make extensive use of this equation, and several of the limiting cases contained therein, to illustrate the numerical techniques that will be presented

Background Developed over the last 25 years- Brandt (1973) published first paper with practical results Offers the possibility of solving a problem with work and storage proportional to the number of unknowns Well developed for linear elliptic problems application to other equations is still an active area of research

1 First Order ave Equation SLIDE 1 The simplest first order partial differential equation in two variables(a, t)is the linear wave equation. Recall that all first order PDE's are of hyperbolic type INITIAL BOUNDARY VALUE PROBLEM (IBVP) 0,x∈(0,1)

Motivation Consider a standard second order finite difference discretization

1 Background Brandt(1973)published first paper SLIDE 1 Offers the possibility of solving a problem with work and storage propor tional to the number of unknowns Well developed for elliptic proble