AutoCADAutodesk是由美国公司开发的通用计算机辅助设计(Computer Aided Design,CAD)软件,具有易于掌握使用方便、体系结构开放等优点 ,能够绘制二维图形与三维图形、标注尺寸、渲染图形以及打印输出图纸,目 前已广泛应用于机械、建筑、电子、航天、造船、石油化工、土木工程、冶金 、地质、气象、纺织、轻工、商业等领域。 AutoCAD2007是 Auto CAD系列软件的最新版本,与 Auto CAD先前的版本相比 ,它在性能和功能方面都有较大的增强,同时保证与低版本完全兼容

Changes in the Nature of Work The Interweaving of Technology and Jobs Changes in the Design of Jobs (there will be no stable jobs in the future Integration of Contingent Workers into the Workforce Increased Emphasis on Continuous Learning

Chapter 14 Objectives After you have read and studied this chapter, you should be able to Write programs that are easily extensible and modifiable by applying polymorphism in program design. Define reusable classes based on inheritance and abstract classes and abstract methods. Define methods using the protected modifier. Parse strings using a StringTokenizer object. 2000 McGraw-Hill

1.1 Introduction Any problems about signal analyses and processing may be thought of letting signals trough systems. f(t) y(t) h(t) From f(t) and h(t), find y(t), Signal processing From f(t) and y(t), find h(t), System design From(t)andh(t), find(t), Signal reconstruction

“公式编辑器”是Design Science公司的 Math Type“公式编辑器”的特别版, 是专为 Microsoft Word应用程序定制的。 域是一种特殊的代码,用于指示Word在文档中插入某些特定的内容或自动完成某 些复杂的功能。例如,使用域可以将日期和时间等插入到文档中,能自动更新日期和时间

山东大学：《过程装备焊接结构》课程教学资源_第六章 过程装备焊接结构设计 Design of welded structure

ESIGN METHODOLOGY III: RECYCLE STRUCTURE OF THE PROCESS goAL-- Determine alternate recycle structures for the process based on reactor operating requirements

MAJOR PROCESS TYPES CONTINUOUS STEADYSTATE- Used for world-scale production of commodity chemicals Large, centrally located plants BATCH Used for small-scale production of high value-added chemicals JIT MINIPLANT Used for on-site production of hazardous or difficult to transport chemicals Continuous Steady-State is the dominant process type

Signaling games are used to model the following situation: Player 1, the Sender, receives some private information and sends a message m E M to Player 2, the Receiver. The latter, in turn, observes m but not 0, and chooses response r E R. Players'payoffs depend on 0, m and r. What could be simpler? Yet, there is a huge number of economically interesting games that fit nicely within this framework: Spence's job market signaling model is the leading example, but applications abound in IO (limit pricing, disclosure...) finance (security design) and political economics

1.分析影响仪器精度的各项误差来源及特件； 2.研究误差的评定和计算方法； 3.研究误差的传递、转化和相互作用的规律； 4.确定误差合成与分配的原则和方法以及对仪器精度进行 测试的过程、从而为仪器结构设计和特件参数的确定提供 可靠的依据