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Prediction-Based State Estimation and Compensation Control for Networked Systems With Communication Constraints and DoS Attacks

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IEEE/CAA Journal of Automatica Sinica 2024年第11期11卷 2352-2354页

作者： Zhong-Hua Pang Qian Cao haibin guo Zhe Dong IEEE the Key Laboratory of Fieldbus Technology and Automation of Beijing North China University of Technology

Dear Editor,This letter investigates the output tracking control issue of networked control systems(NCSs) with communication constraints and denial-of-service(DoS) attacks in the sensor-to-controller channel,both of w...

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髓内骨延长治疗儿童下肢不等长的研究进展

中华小儿外科杂志 2024年第8期45卷 763-768页

作者：高志鹏路真郭海滨杨港贺早南通大学附属常州儿童医院骨科常州213000

下肢不等长对于小儿骨科医生是一个极具挑战性的课题,可引起跛行、背痛、髋关节发育不良及脊柱侧弯等问题。传统的外固定架延长术存在许多并发症,如关节僵硬、肌肉挛缩、针道感染以及给不适体验感。目前髓内肢体延长术已经成为外固定装... 详细信息

下肢不等长对于小儿骨科医生是一个极具挑战性的课题,可引起跛行、背痛、髋关节发育不良及脊柱侧弯等问题。传统的外固定架延长术存在许多并发症,如关节僵硬、肌肉挛缩、针道感染以及给不适体验感。目前髓内肢体延长术已经成为外固定装置之外的一个有价值的选择,可以消除临床上对于外固定装置的依赖性和减少并发症。本研究综述髓内延长装置临床应用经验,以期为儿童下肢畸形的矫正提供以参考。

关键词：骨延长术下肢畸形髓内钉儿童

Residual-Based False Data Injection Attacks Against Multi-Sensor Estimation Systems

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IEEE/CAA Journal of Automatica Sinica 2023年第5期10卷 1181-1191页

作者： haibin guo Jian Sun Zhong-Hua Pang the National Key Laboratory of Autonomous Intelligent Unmanned Systems School of AutomationBeijing Institute of TechnologyBeijing 100081China the Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China the Key Laboratory of Fieldbus Technology and Automation of Beijing North China University of TechnologyBeijing 100144China

This paper investigates the security issue of multisensor remote estimation *** optimal stealthy false data injection(FDI)attack scheme based on historical and current residuals,which only tampers with the measurement residuals of partial sensors due to limited attack resources,is proposed to maximally degrade system estimation *** attack stealthiness condition is given,and then the estimation error covariance in compromised state is derived to quantify the system performance under *** optimal attack strategy is obtained by solving several convex optimization problems which maximize the trace of the compromised estimation error covariance subject to the stealthiness ***,due to the constraint of attack resources,the selection principle of the attacked sensor is provided to determine which sensor is attacked so as to hold the most impact on system ***,simulation results are presented to verify the theoretical analysis.

关键词： Cyber-physical systems(CPSs) false data injection(FDI)attacks remote state estimation stealthy attacks

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装配式建筑全过程成本风险评价研究

哈尔滨商业大学学报（自然科学版） 2024年第5期40卷 606-614页

作者：郭海滨张存存青岛理工大学管理工程学院山东青岛266000

从成本风险评价和控制策略角度出发,对装配式建筑全过程成本风险进了调研,初步识别了4个一级和33个二级装配式建筑项目全过程成本风险影响因素,通过问卷调查、数据处理,使用理论分析法分析对这些因素进行了筛选,建立了评价指标体系.采... 详细信息

从成本风险评价和控制策略角度出发,对装配式建筑全过程成本风险进了调研,初步识别了4个一级和33个二级装配式建筑项目全过程成本风险影响因素,通过问卷调查、数据处理,使用理论分析法分析对这些因素进行了筛选,建立了评价指标体系.采用层次分析法和熵权法组合进行了权重确定,建立了成本风险模糊综合评价模型进行评价.将模型应用到实际项目中,评价了项目在各阶段成本控制中存在的风险等级,针对各风险评价结果提出了相应的风险控制措施.

关键词：装配式建筑全过程成本风险评价组合赋权模糊综合评价风险控制

Detection of Stealthy False Data Injection Attacks Against Cyber-Physical Systems:A Stochastic Coding Scheme

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Journal of Systems Science & Complexity 2022年第5期35卷 1668-1684页

作者： guo haibin PANG Zhonghua SUN Jian LI Jun State Key Lab of Intelligent Control and Decision of Complex Systems School of AutomationBeijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongging Innovation Center Chongqing 401120China Key Laboratory of Fieldbus Technology and Automation of Beijing North China University of TechnologyBeijing 100144China China Industrial Control Systems Cyber Emergency Response Team Beijing 100040China

This paper,from the view of a defender,addresses the security problem of cyber-physical systems(CPSs)subject to stealthy false data injection(FDI)attacks that cannot be detected by a residual-based anomaly detector without other defensive *** detect such a class of FDI attacks,a stochastic coding scheme,which codes the sensor measurement with a Gaussian stochastic signal at the sensor side,is proposed to assist an anomaly detector to expose the FDI *** order to ensure the system performance in the normal operational context,a decoder is adopted to decode the coded sensor measurement when received at the controller *** this detection scheme,the residual under the attack can be significantly different from that in the normal situation,and thus trigger an *** design condition of the coding signal covariance is derived to meet the constraints of false alarm rate and attack detection *** minimize the trace of the coding signal covariance,the design problem of the coding signal is converted into a constraint non-convex optimization problem,and an estimation-optimization iteration algorithm is presented to obtain a numerical solution of the coding signal covariance.A numerical example is given to verify the effectiveness of the proposed scheme.

关键词： Attack detection cyber-physical systems(CPSs) stealthy FDI attacks stochastic coding

Analysis of Stealthy False Data Injection Attacks Against Networked Control Systems:Three Case Studies

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系统科学与复杂性学报:英文版 2023年第4期36卷 1407-1422页

作者： PANG Zhonghua FU Yuan guo haibin SUN Jian Key Laboratory of Fieldbus Technology and Automation of Beijing North China University of TechnologyBeijing 100144China National Key Laboratory of Autonomous Intelligent Unmanned Systems School of AutomationBeijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China

This paper mainly investigates the security problem of a networked control system based on a Kalman filter.A false data injection attack scheme is proposed to only tamper the measurement output,and its stealthiness and effects on system performance are analyzed under three cases of system knowledge held by an attacker and a ***,it is derived that the proposed attack scheme is stealthy for a residual-based detector when the attacker and the defender hold the same accurate system ***,it is proven that the proposed attack scheme is still stealthy even if the defender actively modifies the Kalman filter gain so as to make it different from that of the ***,the stealthiness condition of the proposed attack scheme based on an inaccurate model is ***,for each case,the instability conditions of the closed-loop system under attack are ***,simulation results are provided to test the proposed attack scheme.

关键词： False data injection attack networked control systems(NCSs) stability stealthiness

基于生殖性状的玉米自交系遗传多样性与遗传距离分析

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山东农业科学 2024年第3期56卷 32-42页

作者：郭海斌景颖冯晓曦许海涛张军刚驻马店市农业科学院/河南玉米产业技术体系驻马店综合试验站河南驻马店463000 驻马店市农业农村局/驻马店市农业市场信息工作站河南驻马店463000

为提高玉米自交系种质资源的利用效率,充分了解自交系的遗传基础,探明自交系种质资源间的亲缘关系,本试验田间种植30个玉米骨干自交系,分别对其18个生殖性状进行遗传变异、主成分和聚类分析,研究自交系种质的遗传多样性与遗传距离。结... 详细信息

为提高玉米自交系种质资源的利用效率,充分了解自交系的遗传基础,探明自交系种质资源间的亲缘关系,本试验田间种植30个玉米骨干自交系,分别对其18个生殖性状进行遗传变异、主成分和聚类分析,研究自交系种质的遗传多样性与遗传距离。结果表明:雄穗分枝数、苞叶重、雄穗长、轴粗、秃尖长变异系数均大于10%,变异丰富度高,粒长、穗行数、最长苞叶长、穗长、穗粗变异系数均小于2%,稳定性相对较高;遗传多样性指数(H′)为0.68~2.09,平均值为1.51,百粒重遗传多样性指数最大,苞叶层数遗传多样性指数最小;变异系数越大遗传多样性指数越高。主成分分析得出,前7个主成分对变异的累积贡献率达77.39%;以主成分得分值为坐标的二维排序图可得出,自交系7922、驻136、ZM7211、H1613、驻85、21H86、浚92-8、Mo17遗传多样性丰富。不同自交系间欧式距离变化范围为0.002~0.161,平均欧式距离0.031;在欧式距离为0.03时可将30个自交系划分为5个类群,在欧式距离0.01处则可进一步将其分成13个亚类,亚类间平均遗传距离为23.10。综上可知,根据不同育种目标选择相应的杂优模式可以提高自交系种质资源的利用效率,从而加快玉米品种的培育进程。

关键词：玉米自交系生殖性状主成分分析聚类分析遗传多样性指数遗传距离

玉米YABBY转录因子的全基因组鉴定和表达模式分析

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分子植物育种 2024年第9期22卷 2802-2809页

作者：郝立冬郭海滨李明胡畔李浩宇张天娇绥化学院农业与水利工程学院绥化152000 绥化学院经济管理学院绥化152000 延边大学农学院延吉133002

为挖掘玉米YABBY转录因子的功能,本研究通过生物信息学方法,在玉米全基因组水平一共鉴定到12个玉米YABBY转录因子,并对其表达模式进行了分析。结果表明,它们不均等分布在玉米的7条染色体上。所有的ZmYABBY蛋白均含有一个位于N端的C2-C2... 详细信息

为挖掘玉米YABBY转录因子的功能,本研究通过生物信息学方法,在玉米全基因组水平一共鉴定到12个玉米YABBY转录因子,并对其表达模式进行了分析。结果表明,它们不均等分布在玉米的7条染色体上。所有的ZmYABBY蛋白均含有一个位于N端的C2-C2锌指结构域和C端的YABBY结构域。系统进化分析可将它们分为FIL、CRC、YAB2、YAB1和INO五个亚族。共线性分析发现ZmYABBY基因与禾本科植物存在很好的共线性关系。表达模式分析发现Zm YABBY基因具有特异性表达。这些结果为进一步研究玉米YABBY基因功能提供了理论参考价值。

关键词：玉米 ABBY 全基因组鉴定表达模式

Thermal safety analysis of aluminum matrix B4C irradiation in-pile

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Nuclear Science and Techniques 2013年第B12期24卷 79-82页

作者： MI Xiangmiao QIAN Dazhi ZHANG Zhihua HUANG Hongwen guo haibin Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics Mianyang 621900 China

Aluminum matrix B4C is a new structural material for spent fuel storage and related performances need in-depth research, especially the irradiation-resistance capability. The thermal calculations were completed by using the CFD software to ensure the safety of the in-pile irradiation test. Considering the characteristic of the irradiation project, the thermal safety feature of the in-pile test was analyzed, and the irradiation project was optimized.

关键词：安全性分析 B4C 照射铝基乏燃料贮存 CFD软件结构材料安全功能