Countermeasure Research on Ecological Civilization Construction in Zhangzhou City

20世纪70年代以来，随着人类社会工业的迅速发展，全球的环境污染日趋严重、资源利用越发吃紧，生态矛盾更加突出，人类生存受到越来越大的威胁，人们开始关注这一系列问题，这就产生了生态文明。生态文明是人类对自身建设行为的及时修正，是对自然的积极改造，是人类历史进程中的必然选择。建设生态文明，有利于地球生态系统的有序循环，人类的长远发展，推动人与自然良好往来。我国作为一个发展中国家，改革开放30多年来，取得了巨大成就，但在现代化建设的进程中也出现了环境污染、资源紧张、地区发展不平衡等一系列问题，成为制约我国经济社会发展的一大瓶颈。建设生态文明的发展战略，是中国特色社会主义理论的延伸，是党中央站在新的高...With the rapid development of the human society industry, global environmental pollution has become increasingly serious since the 1970s. Resource utilization increasingly tight and the ecological contradictions become more prominent. Human survival is threatened with growing pressure. People begin to pay close attention to this a series of problems, which leads to the generation of ecological civ...学位：公共管理硕士院系专业：公共事务学院公共管理系_公共管理硕士(MPA)学号：X200813616

热膨胀阻水油膏的研制

文章介绍了新一代光缆填充阻水油膏,它的工作机制是利用油膏遇热膨胀的特性将光缆中的空隙填满,从而达到完全隔断水份的目的。文章阐述了热膨胀阻水油膏的研制过程及制作工艺,给出了该热膨胀阻水油膏的性能测试指标。与目前国内普遍使用的遇水膨胀油膏相比,热膨胀阻水油膏具有明显的优势

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

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

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^

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies