A decoupling operation model of flux losses and ohmic losses in magnetic flux compression generator

研究螺旋型爆磁压缩发生器的损耗机理,建立了一种磁通损耗项和电阻损耗项解耦表示的爆磁压缩发生器运行模型,并给出了物理意义明确的损耗项解析式;经实验验证,对于损耗机理更为复杂的紧凑型级联爆磁压缩发生器,本模型仿真结果与实验结果仍符合良好,仿真波形与实验波形总体趋势一致,螺距变化的节点处过度清晰,定子均绕段的波形相似度较高

多旋翼无人机水样采集系统

本实用新型属于环境水质监测技术领域，特别涉及一种多旋翼无人机水样采集系统。包括多旋翼无人机、水样采集系统及手持移动设备，其中水样采集系统设置于多旋翼无人机上；手持移动设备用于与多旋翼无人机和水样采集系统进行无线通信；水样采集系统包括收放控制装置、收放绳索及采样瓶，其中收放控制装置设置于多旋翼无人机上，收放绳索的一端与收放控制装置连接，另一端与采样瓶连接。本实用新型装置简单，易组成，操作方便，可实现对不同深度的水质进行精确采样，并且采样瓶采用下进水阀门进水，上出水阀门出水设计，可以有效确保在采样回收过程中采样瓶中，水不外流

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

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