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The cooperative shared tele-operation technology is used to overcome the impact of satellite-earth communication delay and non-structural space environment. To get the appropriate collaborative shared teleoperation system operation sequence, the formal based operation strategy is proposed. Firstly, the task sequence algorithm is introduced. In the algorithm, GSPN (generalize stochastic Petri net)...
This paper proposes the design and analysis of a broadband 2-40 GHz passive distributed drain-pumped mixer using 0.18 μm CMOS technology for ultrawide-band (UWB) receivers. To achieve broad bandwidth for the UWB communications, a distributed topology is introduced. A closed-form analytical model for the conversion loss of distributed drain-pumped mixer is presented for the first time. The designed...
The ever increasing quest for smaller details on computer chips requires increasingly accurate lithographic machinery. This paper discusses part of the design of a permanent magnet based vibration isolation system to be used within such machinery. In such system, the passive permanent magnets provide the gravity compensation and active electromagnets the accurate positioning. Flux-focusing materials...
Offshore wind energy resources have been paid more and more attention due to its advantages.This paper addresses the issues associated with modeling directly driven turbine with complex structure and permanent magnet synchronous generator(DC-PMSG) which is applicable to build big offshore windfarms.The operational mechanism of the DC-PMSG and the interconnection topology between the DC-PMSG are studied...
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