一种新型核级FeCrAl合金的离子辐照行为

采用400 keV的Fe+离子在400℃下对一种新型核级Fe13Cr4Al合金进行了辐照,利用透射电镜（TEM）和纳米显微硬度仪分析及测试了其辐照前后的微观结构和硬度值。结果表明:Fe+离子辐照在合金基体中形成了大量位错环而未形成明显尺寸的空位团。随辐照剂量的增加,位错环尺寸不断增大,位错环体密度先增加,后趋于饱和,数值稳定在3.1×1022 /m3。辐照未使合金基体非晶化,但导致Laves析出相发生非晶化转变。随辐照剂量的增加,析出相中Nb、Mo、Ta和Cr 4种元素的含量呈减少趋势,而Si的含量却逐渐增加。在60～100 nm深度范围发生明显辐照硬化现象,临界深度值hc=100 nm。辐照硬化值与辐照剂量呈幂函数关系:ΔHIrr=0.4288（d）0.2311;而与微观组织参量（ND）0.5呈正相关:ΔHIrr=55.36（ND）0.5。国家自然科学基金(U1867201,U1832112);;\n厦门大学能源学院发展基金(2018NYFZ01

中华医学会精神病学分会会议论文集

&lt;正&gt;目的人脑默认网络维持着人在静息状态下的认知功能,以往的研究发现,精神分裂症患者存在脑默认网络的异常。我们以较大的样本,研究精神分裂症患者与健康对照默认网络功能活动的差异,探讨精神分裂症患者静息状态下的脑功能网络改变,为理解疾病机理和临床诊断提供新线索和依据</p

SECS communicating method based on SEMI standard

本发明属于网络通信技术，具体地说是一种基于SEMI标准的SECS通信方法。包括HSMS通信模块实现设备到主机的连接，并通过网络进行数据传输步骤；及通过SECS协议模块进行SECS？II编解码，实施数据收集、设备控制和异常处理步骤。采用本发明可实现半导体工厂的自动化管理，能够满足半导体器件制造过程中的高真空、高洁度、高无尘等特性要求，可使不同的设备控制系统标准化、提高生产效率、降低生产成本

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