全反射

全反射:又称全内反射,指光由光密介质(即光在此介质中的折射率大的)射到光疏介质(即光在此介质中折射率小的)的界面时,全部被反射回原介质内的现象。

FPGA

FPGA就是有查找表,触发器和布线资源组成。

硬件意识是RTL级设计的基础。

1.电路在物理上是并行工作的。其含义是一旦接通电源,所有电路都同时工作。

2.电路行为的先后顺序通过时钟节拍顺序来实现。

OpenFlow

As researchers, how can we run experiments in our campus networks?

  • Amenable to high-performance and low-cost implementations.
  • Capable of supporting a broad range of research.
  • Assured to isolate experimental traffic from production traffic.
  • Consistent with vendor’s need for closed platforms.

Preliminary results suggested that an Ethane controller based ? ? on a low-cost desktop PC could process over 10,000 new flows per second — enough for a large college campus.