一种新型全光因特网方案设计及性能仿真

在详细阐述全光因特网的系统结构和逻辑结构的基础上,以河南省为平台提出了一种新型的具有MESH网络和自愈环网双重网络特性的全光因特网拓扑结构。系统误码性能和光谱特性仿真结果表明,这种类似"蜘蛛网"状的全光因特网拓扑结构具有生存性高、误码率低以及易于故障定位等优点。

Experimental investigation of nanosecond discharge plasma aerodynamic actuation

In this paper we report on an experimental study of the characteristics of nanosecond pulsed discharge plasma aerodynamic actuation. The N2 （C3IIu） rotational and vibrational temperatures are around 430 K and 0.24 eV, respectively. The emission intensity ratio between tile first negative system and the second positive system of N2, as a rough indicator of the temporally and spatially averaged electron energy, has a minor dependence on applied voltage amplitude. The induced flow direction is not parallel, but vertical to the dielectric layer surface, as shown by measurements of body force, velocity, and vorticity. Nanosecond discharge plasma aerodynamic actuation is effective in airfoil flow separation control at freestream speeds up to 100 m/s.

扬中市市镇1550nm系统建设方案

系统地介绍了市到镇1 550 nm光缆网建设方案,从前端、分前端、光缆、IPQAM信号插入、系统的设计、调试、网管等各个方面加以阐述。结合组网实践,重点介绍了光缆双路由、设备热备份、信号自动切换的构成;分前端利用波分复用技术插入IPQAM互动点播信号;光链路的设计计算以及系统信号的调试等。