共查询到20条相似文献,搜索用时 508 毫秒
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在系统梳理回顾相关文献的基础上,结合当前医疗信息安全系统的实际,提出了基于纵深防御思想的新型医疗信息安全管理模型和物理实现架构进行分析与阐述。在此基础上,构建了医疗信息安全系统风险评价体系,并运用层次分析方法,对医疗信息系统安全风险评价体系各项指标进行了赋权与分析,提出了纵深防御下的医疗信息系统安全风险管理的侧重与优化建议,为进一步提升医疗信息系统纵深防御安全风险防范能力提供意见参考。 相似文献
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对地观测卫星系统优化问题具有设计变量多、设计空间大、难以解析计算而仿真又十分耗时的特点, 因此提出了基于综合拉丁方试验设计和代理模型的仿真优化框架. 该框架通过综合拉丁方试验设计方法生成仿真方案, 然后通过Kriging代理模型对仿真数据进行优化分析, 为实现代理模型的更新提出了代理模型最优点与最大化期望提高相结合的方式, 为实现代理模型的优化, 提出了全局与局部相结合的搜索模式, 其中全局搜索采用遗传算法实现, 局部搜索采用改进广义模式搜索算法实现, 最后通过仿真实例验证了该求解框架的有效性. 相似文献
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针对军用电站雷电过电压电磁暂态模型复杂度高和计算误差大的问题,以典型军用电站为研究对象,提出了军用电站电力电子设备离散-连续分离建模方法,建立了电缆、控制箱等雷电防护关键部件的电磁暂态模型,并采用插值算法对开关的暂态等值电路模型进行修正,提高了开关动作时刻仿真模型的准确性。基于PSCAD/EMTDC软件构建了军用电站雷电过电压电磁暂态仿真系统,通过大量的仿真试验,获取了接地电阻、浪涌保护器等对军用电站耐雷水平的影响规律,基于此开发的模块化军用电站雷电过电压防护装置可阻塞沿不同电能制式、电压强度的电源/数据/信号线引入的雷电过电压,进一步验证了仿真模型的正确性。 相似文献
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针对军事信息系统项目军民融合事前决策评估问题,提出了一种基于改进层次分析法和云模型的军事信息系统项目军民融合需求度评估模型,为研究军民融合评估工作探索一条新的途径.利用正态分布区间数表示评估数据,并利用区间数逆向云发生器生成各评估指标云.同时采用兼顾形状和距离的正态云模型相似度测算方法对军民融合需求度进行综合评估.仿真实验表明,本文提出的评估模型具有很好的合理性和可用性. 相似文献
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《系统工程理论与实践》2014,(5)
正August 10-14,2015Beijing,ChinaThe International Congress on Industrial and Applied Mathematics(ICIAM)is the premier international congress in the field of applied mathematics held every four years under the auspices of the International Council for Industrial and Applied Mathematics.From August 10 to 14,2015,mathematicians,scientists 相似文献
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《系统科学与系统工程学报(英文版)》2014,(2)
正AF:Any Field The School of Economics and Management at Tsinghua University(Tsinghua SEM)invites applications for faculty positions at all levels(Assistant Professor,Associate Professor and Full Professor)in any fields of business administration and management.Tsinghua SEM is the only school 相似文献
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《系统科学与系统工程学报(英文版)》2014,(4)
正June 22-24,2015Guangzhou,China http://iec.cnsba.com/index.htmlCo-Sponsored by:ffiEE SMC(pending)South China University of Technology The Chinese University of Hong Kong Tsinghua UniversityHosted bv:School of Business Administration,South China University of Technology,China Conference Co-Chairs: 相似文献
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The paper is about negotiating with issues that discourage innovation. The subject is environmental deterioration, with concern directed at the impediments that keep it from being innovatively resolved. The paper is organized around three issues. (1) The dominant model of environmental concern, called environmental protection, is managed predominantly via command and control approaches. (2) Command and control, by relying on analytical segmentation to subdivide the problem into digestible bits and using formal legislation to direct it, are not up to emerging challenges in the area. (3) More robust models are available but difficult to experiment with due to impediments that discourage change. These impediments are seen in ideals associated with protection, prevention, recycling, and sustainability that tend to do more to sustain harmful practices than to seek beneficial alternatives. Being able to appreciate the underlying restrictions of entropy could help stimulate a more innovative agenda. These issues are tested via a project funded by the EPA entitled ENERGY STAR Homes. 相似文献