用户控制光路(UCLP,User Control Light Path)系统提供了一种网络虚拟化的框架。在这个框架下,用户可以根据自身的需求建立自己独有的应用业务,不需要去处理复杂的下层网络技术。用户可以在跨越多个管理域的分级专网(APN)里,绑定各种网...用户控制光路(UCLP,User Control Light Path)系统提供了一种网络虚拟化的框架。在这个框架下,用户可以根据自身的需求建立自己独有的应用业务,不需要去处理复杂的下层网络技术。用户可以在跨越多个管理域的分级专网(APN)里,绑定各种网络资源来创建自己所需要的网络拓扑。说明了UCLP系统的面向服务架构和其3类用户:物理网络的管理员、高级和普通终端用户。展开更多
A novel three-phase active power filter （APF） circuit with photovoltaic （PV） system to improve the quality of service and to reduce the capacity of energy storage capacitor is presented. The energy balance concept...A novel three-phase active power filter （APF） circuit with photovoltaic （PV） system to improve the quality of service and to reduce the capacity of energy storage capacitor is presented. The energy balance concept and sampling technique were used to simplify the calculation algorithm for the required utility source current and to control the voltage of the energy storage capacitor. The feasibility was verified by using the Pspice simulations and experiments. When the APF mode was used during non-operational period, not only the utilization rate, power factor and power quality could be improved, but also the capacity of energy storage capacitor could sparing. As the results, the advantages of the APF circuit are simplicity of control circuits, low cost, and good transient response.展开更多
we demonstrate the adjustability of optimal input power(OIP) of the radio over fiber(RoF) link by proper link gain control in the central unit(CU) and remote antenna unit(RAU).The experiment results show that the read...we demonstrate the adjustability of optimal input power(OIP) of the radio over fiber(RoF) link by proper link gain control in the central unit(CU) and remote antenna unit(RAU).The experiment results show that the reading and writing distance(RWD)of the radio frequency identification(RFID)service and the throughput of the WiFi service have a max increase of 3cm and 6.975Mbit/s respectively when the OIP value equals to output power of commercial products,compared with OIP value with 5-dBm right/left shift to the output power.展开更多
文摘用户控制光路(UCLP,User Control Light Path)系统提供了一种网络虚拟化的框架。在这个框架下,用户可以根据自身的需求建立自己独有的应用业务,不需要去处理复杂的下层网络技术。用户可以在跨越多个管理域的分级专网(APN)里,绑定各种网络资源来创建自己所需要的网络拓扑。说明了UCLP系统的面向服务架构和其3类用户:物理网络的管理员、高级和普通终端用户。
文摘A novel three-phase active power filter （APF） circuit with photovoltaic （PV） system to improve the quality of service and to reduce the capacity of energy storage capacitor is presented. The energy balance concept and sampling technique were used to simplify the calculation algorithm for the required utility source current and to control the voltage of the energy storage capacitor. The feasibility was verified by using the Pspice simulations and experiments. When the APF mode was used during non-operational period, not only the utilization rate, power factor and power quality could be improved, but also the capacity of energy storage capacitor could sparing. As the results, the advantages of the APF circuit are simplicity of control circuits, low cost, and good transient response.
基金supported in part by the National Basic Research Program of China （2012CB315704） the National Natural Science Foundation of China（No.61275068） the Key Grant Project of Chinese Ministry of Education（No.313049）
文摘we demonstrate the adjustability of optimal input power(OIP) of the radio over fiber(RoF) link by proper link gain control in the central unit(CU) and remote antenna unit(RAU).The experiment results show that the reading and writing distance(RWD)of the radio frequency identification(RFID)service and the throughput of the WiFi service have a max increase of 3cm and 6.975Mbit/s respectively when the OIP value equals to output power of commercial products,compared with OIP value with 5-dBm right/left shift to the output power.
