12 research outputs found

    国外科技基础设施科技政策特点和制定流程分析

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    为探索如何最大限度地发挥战略规划的效用,通过分析国外科技基础设施战略规划在编制目的、范围和过程方面所表现出的特点与不足之处,对我国重大科技基础设施战略规划的制定提出思考和建议。</p

    国外科技基础设施科技政策特点和制定流程分析

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    为探索如何最大限度地发挥战略规划的效用,通过分析国外科技基础设施战略规划在编制目的、范围和过程方面所表现出的特点与不足之处,对我国重大科技基础设施战略规划的制定提出思考和建议。</p

    基于科技成果转化的学科服务研究

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    https://digitalrepository.unm.edu/roswell_record_news/2326/thumbnail.jp

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

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    We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements

    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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