8 research outputs found

    农田水利施工中的水土保持与措施

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    基于高通量测序技术对不同季节圈养褐马鸡肠道菌群多样性分析

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    为提高褐马鸡(Crossoptilon mantchuricum)疾病防控能力和饲养管理水平,利用高通量测序技术对其肠道菌群进行多样性分析,探知其肠道菌群在不同季节的变化规律,并预测潜在致病的高发时间段,结果表明:门水平上,圈养褐马鸡的肠道优势菌群为厚壁菌门(Firmicutes,52.11%)、拟杆菌门(Bacteroidetes,18.20%)、变形菌门(Proteobacteria,17.91%)和放线菌门(Actinobacteria,7.32%); 属水平上,Rikenellaceae_RC9_gut_group为优势菌属(5.56%),其次是链球菌属(Streptococcus,5.47%)和脱硫弧菌属(Desulfovibrio,4.74%)。通过组间差异分析结合不同季节菌群变化规律,以春、夏、秋、冬四季依次排序,厚壁菌门呈递减趋势; 拟杆菌门在春季组和夏季组较低,在秋季组和冬季组呈递增趋势,冬季组丰度为36.72%; 变形菌门在夏季组丰度最高(34.81%),差异显著(PRikenellaceae_RC9_gut_group最为优势,春季组至夏季组呈递减趋势,秋、冬组逐渐升高,冬季组达到峰值,差异显著(P<0.05); 链球菌属在夏季呈爆发式增长(21.84%),其他各组均低于0.05%,同时,潜在致病性预测也发现夏季组患病风险明显增加。综上,不同季节圈养褐马鸡的肠道菌群会发生相应的改变,夏季则是褐马鸡消化道疾病高发季节

    智能传感器主动协同的变电站机器人智能巡检系统及方法

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    本发明提供了一种智能传感器主动协同的变电站机器人智能巡检系统及方法,本发明巡检系统包括:智能机器人协同巡检层、自主协同层和变电站智能传感层形成三层智能巡检架构。本发明巡检系统中,巡检机器人进行自主路径规划完成图像数据采集,智能传感器感知被检测设备的状态并进行数据预处理和分析,巡检机器人和智能传感器通过近场通信机制和智能执行器进行主动协同,协同服务器基于巡检机器人感知数据进行复杂场景识别,以及对巡检机器人感知数据和智能传感器感知数据进行多源数据融合分析。显著的提升了巡视的及时性,避免操作过程的人员安全风险.减少巡检时的人工干预,保证变电巡视任务顺利进行

    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^

    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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