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Subject: Science & Technology - Other Topics (provided by Thomson Reuters)
Title:
面向服务进程的用户权限隔离模型
Alternative Title: user permission isolation model oriented to service process
Author: 李瑜 ; 赵勇 ; 梁鹏
Keyword: 最小权限 ; 虚拟化 ; 隔离 ; 特权用户 ; ; 系统服务
Source: 计算机工程
Issued Date: 2011
Volume: 99, Issue:23, Pages:141-143,146
Indexed Type: CNKI ; EI ; WANFANG ; CSCD
Department: 北京工业大学计算机学院;信息安全国家重点实验室(中国科学院软件研究所);
Sponsorship: 国家“863”计划基金资助项目(2009AA01Z437)|国家“973”计划基金资助项目(2007CB311100)|信息安全国家重点实验室(中国科学院软件研究所)开放课题基金资助项目
Abstract: 针对系统服务中的特权用户问题,提出一种面向服务进程的用户权限隔离模型,依据安全级别将用户、隔离域、程序模块进行映射关联,利用虚拟化技术为不同用户构造相互隔离的运行环境,形式化定义用户隔离域,给出虚拟化构建隔离域的关键技术及实现方法,从而实现用户权限的隔离,消除系统中潜在的特权用户。
English Abstract: Blue InGaN/GaN multiple quantum well light-emitting diodes with the conventional and graded last barriers (GLB) are numerically investigated. When the last GaN barrier is replaced by a linearly graded InxGa 1 - xN barrier with increasing indium composition in the growth direction, the forward voltage is reduced from 3.60 V to 3.25 V, and the efficiency droop is improved from 36 to 13. Simulation results indicate that these improvements can be attributed to the formation of a deep potential well in the GLB which enhances the electron confinement and improves the hole injection efficiency. © 2011 American Institute of Physics.
Language: 英语
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Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/16122
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
李瑜,赵勇,梁鹏. 面向服务进程的用户权限隔离模型[J]. 计算机工程,2011-01-01,99(23):141-143,146.
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