In this paper, an interval-gap-based 1NF temporal tuple calculus language and the corresponding temporal relation algebra are established on the basis of consid
The MX3101 E3/E1 Multiplexer/Demultiplexer(M13)device with digital cross-connec-tors is the first industrial semiconductor chip which can provide the whole circ
An optical WDM transmissiou system using 3 EDFAs with 12 channels and a totaltransmission length of 250 km is introduced.The total hit rate of this system is 3.