1．酒精生产原料 (1)薯类原料 甘薯、木薯和马铃薯等。 (2)谷物原料 玉米、高梁、大米和小麦等。 (3)糖类原料 废糖蜜、甘蔗、甜菜等。 (4)野生植物原料 椽子仁、土茯苓、楝树果等。 (5)纤维原料 森林工业和木材加工工业的下脚料

第一节 交通安全工程概述 第二节 安全系统工程相关概念 第三节 安全的内涵和特性 第四节 交通安全与交通事故

Outline Purpose of thermal control systems Review of heat transfer fundamentals Space system thermal analysis Equations Models Analysis programs

Satellite CommunicationsArchitecture Identify Requirements Specify Architectures Determine Link Data Rates Design & Size each link Document your rationale

Spacecraft data processing requires microcomputers and interfaces that are functionally similar to desktop systems However, space systems require: Low power, volume, and mass High reliability and fault tolerance

Outline Definitions Software design process Design rules Software costing

Space Systems Laboratory Massachusetts Institute of Technology Introduction Introduction Objective : To compare the different imaging configurations for a To compare the different imaging configurations for a Separated Spacecraft Interferometer operating from an Separated Spacecraft Interferometer operating from an Earth’s orbit Earth’s orbit

Why Cost Estimation? Critically important part of system design Too high – lose the contract award Too low – over-run cost plus contracts, company loss on fixed price contracts

Space Systems Laboratory Massachusetts Institute of Technology Optimization of Separated Spacecraft Interferometer Trajectories in the Absence of A Gravity-Well Optimization of Separated Spacecraft Optimization of Separated Spacecraft Interferometer Trajectories in the Interferometer Trajectories in the Absence of A Gravity Absence of A Gravity-Well Edmund M. Edmund M. Kong Prof David W. Miller David W. Miller

Massachusetts Institute of Technology Space Systems Laboratory Lockheed Martin Corporation Advanced Technology Center Electromagnetic Formation Flight Electromagnetic Formation Flight