According to the problem of centralized resource management cluster that the center control node is prone to become the bottleneck of the system,a composite agent is introduced into the cluster,and the resource management of non-single-control cluster is put forward and thus,the problem of the whole system crash induced by the central control node invalidation is settled.

Strategy of Central Cities Circled with Groups--A New Standpoint of Current Rural Reformation in China;

This paper gives the traffic simulation results of using message trunking,transmission trunking and quasi-transmission trunking in centered processing trunking radio system, the effects of three types of different trunking technology on traffic characteristics andthe traffic characteristics of centered processing trunking radio system.

In this paper,finite groups with commutative automorphism groups are studied by using the methods of ring theory,and a new technique for construcing automorphisms is introduced which can be used to prove such non-commutative groups and their maximal subgroups have non-cyclic central subgroups.

In 2008, Ya-dav proved that if G is a finite non-abelian p-group and M is a central subgroup of G then CAut G(G/M, Z(G))=Inn G if and only if the nilpotency class of G is 2,G\'≤M and M is cyclic.