In the two decades since the end of the Cold War, the free flow of information, people, goods and services has accelerated at an unprecedented rate.

In 30 of 34 (88 2%) cases, both of the inspectors considered that three dimensional ultrasound could provide more flow information, and the coincident rate was 97 1%.

The article brings forward file level flow control mechanism, this mechanism use stream information layers to choose strip files with less data rate to send when networks is congested.