一、分缀起动电阻的计算 设对应转速n1、n2、n3时电势分别为E1、E2、Ea,则有:

一、电力拖动系统的调速: 1 机械调速; 2 电气调速

三相异步电动机电磁转矩的三种表达方式 一、物理表达式 二、参数表达式 三、实用表达式

Traditional Systems Engineering Process model 16.422 ACQUISITION PHASE UTILIZATION PHASE

Process Control plants 16.422 Continuous or batch processing Examples: Electricity generation(nuclear power plants), refineries, steel production, paper mills, pasteurization of milk Characterized by Large scale, both physically and conceptually Complex

The Coming Transition in Automobile Cockpits Insights from Aerospace Prof r, John Hansman Department of Aeronautics Astronautics

System/Software Reqs User survey. need's analysys, etc Feasiowty assessent Artifact ad Mwe-systemm evalation 户 rbm arce and usab reqs Innovative comeas for aKHE labod'uodgset planmin next versio? release

Working Memory Sensory Cognition Processing Response esponse Perception (STSS) selection execution System Environment (Feedback) Wickens hollands 2000 STSS=short term sensory storage Perception drives bottoms-up processing

Prior to 767 somewhat arbitrary break at 100 seats DC-9 (2 person crew-pilot, co-pilot u B-727 3 person crew-pilot, co-pilot, flight engineer) B-757/767 Designed for 2 person Crew u Use of automation and simplified systems so minimize systems management u Use of advanced Cockpit to Increase Sa and make primary flight tasks

Decision Theory supervisory Control 16.422 TWo broad areas of decision theory Normative Prescriptive Descriptive Why how do we make decisions? How does technology support or detract from optimal decision making