5 research outputs found

    Wide Area Communication and Synchronization Technology of Distribution Network Based on WIA

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    通信网络与信号同步技术对智能配电网的发展起到至关重要的作用,配电网规模庞大、结构复杂,终端接入数量多,现有技术手段已经无法满足配电网通信全覆盖与信号精确同步的需求。本文针对配电网的弱通信环境,提出了一种基于无线工业自动化(wireless industrial automation,WIA)技术的配电网广域通信与同步技术,对通信网络和同步系统的架构进行了详细的介绍,实验结果表明,WIA技术与现有电力通信资源相结合,能够有效解决采集盲点、网络覆盖能力不足等问题,并且能够为配电网量测系统提供精准同步手段

    Amplitude analysis of the decays D0π+ππ+πD^0\rightarrow\pi^+\pi^-\pi^+\pi^- and D0π+ππ0π0D^0\rightarrow\pi^+\pi^-\pi^0\pi0

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    Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024*

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    Determination of the number of ψ(3686) events taken at BESIII

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    The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^
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