This paper describes a new database connection pool technology based on dynamic proxy,which not only has the function of the normal database connection pool,but also has Absolute control of the connections.

A preemption control model based on time slice is therefore proposed to assign every task on upper limit of preemptable frequency.

Application of temperature and humidity independent controlled air-conditioning technology in spinning department

In view of the practical needs of the users and the features of the next generation network technology,specially,IPv6,it presents the architecture of the open intelligent home network based on the coordination of the centralized and independent control modes and focuses on discussing its main problems and the appropriate solutions.

The mathematical model and the active and reactive power independent control strategy of VSC - HVDC system is studied.

The new approach achieved inverter switch s duty ratio control and made torque ripple minimum.

Simulation and experimental results show that the new DTC strategy based on duty ratio control has advantages of traditional DTC and effectively reduces torque ripples which improve the performance of traditional DTC.

A novel DTC strategy of PMSM combined sectors subdivision with duty ratio control is proposed based on the analysis of flux linkage and torque control trajectory and ripples.