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Three Basic Laws for the Network Era and Capacity Evolution for Backbone Networks

Wei Leping

Strategic Study of CAE 2001, Volume 3, Issue 5, Pages 12-16

Abstract: presented capacity evolution strategies for transmission links, transport nodes and service nodes in backbone

Keywords： network capacity backbone network

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Space contracting and decomposing algorithm based on Backbone

Gao Yongchao,Qian Heng,Liu Limei,Wang Yunzheng,Wang Ding

Strategic Study of CAE 2009, Volume 11, Issue 9, Pages 74-77

Abstract: the search space and decomposes it into one or several optimal regions combined with the concept of Backbone

Keywords： job shop scheduling problem solution space Backbone

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Synthesis and properties of polybenzazoles containing flexible methylene in backbone

XU Xiaohui, LIU Xiaoyun, ZHOU Chengjun, ZHUANG Qixin, HAN Zhewen

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4, Pages 412-416 doi: 10.1007/s11705-008-0073-5

Abstract: A novel series of polybenzazoles with rigid-rod benzoxazole cycle and soft methylene segment was designed and synthesized via solution condensation polymerizations from 4,6-diamino-1,3-benzenediol diphosphate, terephthalic acid and aliphatic dicarboxylic acid. The structures of polybenzazoles were characterized by means of FT-IR, H NMR and Wide-angle X-ray diffraction (WAXRD). All the polymers show excellent thermal stability and the s was above 471°C. The intrinsic viscosities [] of the polymers ranged from 0.8 to 0.9. The UV-Vis absorption peaks of the polymers in MSA were blue-shifted from 429 nm for PBO to 291 nm for PBOC7, and the Stokes shifts in PL spectra enlarged.

Keywords： condensation Wide-angle absorption excellent diffraction