服务器虚拟化技术及安全研究

文章概述了x86平台服务器主流虚拟化技术分类及原理,比较分析了全虚拟化、半虚拟化和硬件辅助虚拟化技术的优势和缺点,同时分析了服务器虚拟化带来的新的安全风险与挑战,并讨论了在虚拟环境下的安全应对措施.中国计算机学

research on technology and security of server virtualization

文章概述了x86平台服务器主流虚拟化技术分类及原理,比较分析了全虚拟化、半虚拟化和硬件辅助虚拟化技术的优势和缺点,同时分析了服务器虚拟化带来的新的安全风险与挑战,并讨论了在虚拟环境下的安全应对措施。2010年电子信息产业发展基金项目资助(课题名称:联想网御高性能IPv6防火墙研发与产业化

The interface microstructure and mechanical property of the multi-layer wafer of pyrex glass and Al by the common anode bonding process

采用公共阳极法实现了Pyrex玻璃与铝多层晶片的静电键合,对玻璃/铝/玻璃阳极接合界面的组织结构及其连接机理和力学特征进行了重点研究。分别利用微拉伸测试设备和ANSYS软件分析了连接区的力学性能和残余应力分布特征。分析认为键合区由玻璃-过渡层-铝组成,过渡层为Al_2O_3-SiO_2复合氧化物。玻璃/铝界面的微观组织和元素分布均以铝为对称轴呈对称分布。在玻璃/铝/玻璃多层连接区,键合界面附近的残余应力和应变呈对称分布,多层结构的对称性有利于缓解接头应变和应力,表明应用公共阳极法可实现多层玻璃/铝/玻璃的良好键合

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