一种宽谱超快非线性光学响应性能的多层金属陶瓷薄膜及其制备方法

本发明公开了一种宽谱超快非线性光学响应性能的多层金属陶瓷薄膜，自基底向外依次包括第一金属纳米线阵列-陶瓷复合层、第一陶瓷层、第二金属纳米线阵列-陶瓷复合层、第二陶瓷层、直至第n金属纳米线阵列-陶瓷复合层和第n陶瓷层，所述的第n陶瓷层为陶瓷钝化层，所述的2≤n≤5；所述的金属纳米线包括金、铂、银、铜或铝纳米线；所述的陶瓷包括氧化物、氮化物、碳化物或硼化物；所述陶瓷钝化层为氧化物、氮化物、碳化物或硼化物钝化层。该方法的优势在于对衬底材料导电能力不作要求，在绝缘、导电、半导体等各类型衬底上均可制备，便于复合薄膜与其它功能部件集成制备，拓宽超快非线性光学响应薄膜的应用空间

基于共轴球面并联3RRR机构的手腕康复装置研制

针对中风患者腕部运动功能障碍及康复训练问题，提出了一种基于共轴球面并联3RRR机构的手腕康复装置。该装置由3个电机驱动，末端执行机构能够实现球面运动，以模拟手腕3自由度复合运动，实现手腕康复训练。为了达到紧凑性设计的目的，采用了三轴共轴球面并联机构和同步带传动的设计方案。在此基础上，建立手腕康复装置运动学数学模型，获得了电机输入角度与末端执行机构输出位姿之间的关系；并确定康复装置的工作空间：绕X轴旋转最大角度为32°，绕Y轴旋转最大角度为37°，绕Z轴全周旋转。最后，加工出实验样机进行实验验证。结果表明，该装置运转平稳，工作空间内不存在卡死现象

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