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  1. 47621
  2. 47622

    100 Tbit/s Optical Transmission Technology on Single Mode Fiber by Ming Luo, Zhixue He, Rong Hu, Wu Liu, Qi Yang, Shaohua Yu

    Published 2015-10-01
    “…With the rapid development of the information society,the demand for the transmission capacity of the backbone network is becoming more and more urgent.Firstly,the background of 100 Tbit/s optical transmission technology on single mode fiber(SMF)was introduced.Then some large capacity optical transmission experiments on SMF in recent years were compared.Next,the technical route of 100 Tbit/s optical transmission system on SMF was analyzed,and it was focused on the system experiment of C and L band 100.2 Tbit/s dual polarization DFT-S 128QAM OFDM signal transmission over 80 km G.652 fiber which was first in China.Finally,research foreground of 100 Tbit/s optical transmission technology on SMF was prospected.…”
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    Research on the Connotation,Denotation of the Ground Information Port by Bin ZHOU, Zuoya ZHENG, Linyao QIU, Gang LIU, Zhou LU

    Published 2020-09-01
    “…In view of the existing problems in infrastructure,data sharing,application services and other aspects in China's space information application service system,the defi nition,construction concept and development goal of ground information port (GIP) was proposed by referring to the mature concept of "port" in the fi eld of aviation and transportation.Combined with the construction of the national project of space-integrated-ground network (SIGN),ground information port aims to eliminate information island,get through system channel and eliminate application chimney stress on this basis,from the "sharing,integration of general application,open" concept,the connotation and denotation of the GIP were discussed.It will provide reference for the construction of the national networking spatio-temporal information service system in the future.…”
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    Éléments d’une anthropologie du voyage Lévi-Strauss et Hérodote by Pascal Payen

    Published 2011-06-01
    “…Lévi-Strauss’s brief paper, « Herodotus in the sea of China » (1987), reveals, though it seems only a mere note, the extent of the anthropologist’s debt towards his Hellenic predecessor.…”
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  13. 47633

    Do Environmental Regulations Improve Industrial Efficiency? by Peng Li, Li-Li Shi

    Published 2021-01-01
    “…This study was based on research on the impact of environmental regulation on industrial efficiency in 30 provinces from 2005 to 2017 in China. For the explained variables, the industrial efficiency of the DEA-Malmquist method was utilized for the decomposition and measurement of overall factor productivity, and government environmental governance variables were added as instrumental variables for two-stage least-squares regression. …”
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