control label
3.A new scheme of MPLS multicast——MPLS Aggregated Multicast Tree was introduced. Then the efficiency of MPLS aggregated multicast tree in reducing multicast control message overhead,delay of failure recovery and the number of label was discussed. The bounds on label reduction of MPLS Aggregated Multicast Tree were analyzed.
4.Morphometric structures of the monoaminergic innervation on cerebral arteries in 10 spontaneously hypertensive rats (SHR) and 10 normotensive Wistar-Kyoto rats (WKY), used as control group, was studied with immunoperoxidase ABC technique, employing tyrosine-hydroxylase (TH) as label. The immunopositive fibers with the brown linear structures were observed on the anterior cerebral artery, middle cerebral artery and basilar artery in spontaneously hypertensive rats and normotensive Wistar-Kyoto rats.

