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Observer-based event-triggered control for linear MASs under a directed graph and DoS attacks

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Journal of Control and Decision 2022年第3期9卷 384-396页

作者： shuo-qiu Zhang Wei-Wei Che Chao Deng College of the Institute of Complexity Science Shandong Key Laboratory of Industrial Control TechnologyQingdao UniversityQingdaoPeople’s Republic of China Institute of Advanced Technology Nanjing University of Posts and TelecommunicationsNanjingPeople’s Republic of China

In this paper,we investigate the observer-based event-triggered consensus problem for linear multi-agent systems(MASs)under a directed graph and denial-of-service(DoS)attacks.A type of DoS attacks launched by malicious attackers at irregular intervals is considered,which can cause communication channel disruption.A novel event-triggered secure control scheme based on a closed-loop observer is proposed to determine the scheduling of the controller update,and a separation method with less conservativeness is employed to design the controller and observer ***,the frequency and duration of DoS attacks that can be tolerated are analysed for the observer-based secure consensus *** addition,a strictly positive minimal event-triggered time interval for each agent is designed with the help of the proposed eventtriggered condition to eliminate the Zeno ***,a numerical simulation is given to verify the theoretical analysis.

关键词： Directed graph DoS attacks event-triggered mechanism consensus control multi-agent systems

Establishment of basal cell carcinoma animal model in Chinese tree shrew (Tupaia belangeri chinensis)

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Zoological Research 2017年第4期38卷 180-190页

作者： Li-Ping Jiang qiu-shuo Shen Cui-Ping Yang Yong-Bin Chen Key Laboratory of Animal Models and Human Disease Mechanisms Kunming Institute of Zoology Chinese Academy of Sciences Kunming College of Life Science University of Chinese Academy of Sciences

Basal cell carcinoma （BCC） is the most common skin cancer worldwide, with incidence rates continuing to increase. Ultraviolet radiation is the major environmental risk factor and dysregulation of the Hedgehog （Hh） signaling pathway has been identified in most BCCs. The treatment of locally advanced and metastatic BBCs is still a challenge and requires a better animal model than the widely used rodents for drug development and testing. Chinese tree shrews （Tupaia belangeri chinensis） are closely related to primates, bearing many physiological and biochemical advantages over rodents for characterizing human diseases. Here, we successfully established a Chinese tree shrew BCC model by infecting tail skins with lentiviral SmoA1, an active form of Smoothened （Smo） used to constitutively activate the Hh signaling pathway. The pathological characteristics were verified by immunohistochemical analysis. Interestingly, BCC progress was greatly enhanced by the combined usage of lenUviral SmoA1 and shRNA targeting Chinese tree shrew p53. This work provides a useful animal model for further BCC studies and future

关键词： Chinese lree shrew Basal cell carcinoma Hedgehog

PUF-Based Key Distribution in Wireless Sensor Networks

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Computers, Materials & Continua 2020年第8期64卷 1261-1280页

作者： Zheng Zhang Yanan Liu Qinyuan Zuo Lein Harn shuo qiu Yuan Cheng Jinling Institute of Technology Nanjing211169China Department of Computer Science Electrical Engineering University of MissouriKansas64110USA

Physical Unclonable Functions(PUFs)can be seen as kind of hardware one-way functions,who are easily fabricated but difficult to clone,duplicate or ***,PUFs with unclonable and unpredictable properties are welcome to be applied in designing lightweight cryptography *** this paper,a Basic Key Distribution Scheme(Basic-KDS)based on PUFs is firstly ***,by employing different deployment modes,a Random Deployment Key Distribution Scheme(RD-KDS)and a Grouping Deployment Key Distribution Scheme(GD-KDS)are further proposed based on the Basic-KDS for large scale wireless sensor *** our proposals,a sensor is not pre-distributed with any keys but will generate one by the embedded PUF when receiving a challenge from the gateway,which provides perfect resilience against sensor capture ***,the unclonable and unpredictable properties of PUF guarantee the key uniqueness and two-way *** and experiment results show that our proposals have better performances in improving the resilience,secure-connectivity,and efficiency as compared to other schemes.

关键词： Key distribution physical unclonable functions PUF wireless sensor networks deployment mode

Towards Public Integrity Audition for Cloud-IoT Data Based on Blockchain

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Computer Systems Science & Engineering 2022年第6期41卷 1129-1142页

作者： Hao Yan Yanan Liu shuo qiu Shengzhou Hu Weijian Zhang Jinyue Xia School of Network Security Jinling Institute of TechnologyNanjing211169China Fujian Provincial Key Laboratory of Network Security and Cryptology Fujian Normal UniversityFuzhou350007China Department of Mathematics and Computer Science Gannan Normal UniversityGanzhou341000China Network Security and Information Office Hohai UniversityNanjing210098China International Business Machines Corporation(IBM) New YorkNYUSA

With the rapidly developing of Internet of Things (IoT), the volume ofdata generated by IoT systems is increasing quickly. To release the pressure ofdata management and storage, more and more enterprises and individuals preferto integrate cloud service with IoT systems, in which the IoT data can be outsourced to cloud server. Since cloud service provider (CSP) is not fully trusted,a variety of methods have been proposed to deal with the problem of data integritychecking. In traditional data integrity audition schemes, the task of data auditing isusually performed by Third Party Auditor (TPA) which is assumed to be ***, in real-life TPA is not trusted as people thought. Therefore, theseschemes suffer from the underlying problem of single-point failure. Moreover,most of the traditional schemes are designed by RSA or bilinear map techniqueswhich consume heavy computation and communication cost. To overcome theseshortcomings, we propose a novel data integrity checking scheme for cloud-IoTdata based on blockchain technique and homomorphic hash. In our scheme, thetags of all data blocks are computed by a homomorphic hash function and storedin blockchain. Moreover, each step within the process of data integrity checking issigned by the performer, and the signatures are stored in blockchain through smartcontracts. As a result, each behavior for data integrity checking in our scheme canbe traced and audited which improves the security of the scheme greatly. Furthermore, batch-audition for multiple data challenges is also supported in our *** formalize the system model of our scheme and give the concrete *** performance analyses demonstrate that our proposed scheme is efficientand practical without the trust-assumption of TPA.

关键词： Blockchain cloud-IoT data integrity checking homomorphic hash function batch audition

Preparation of Al2O3–SiO2 composite aerogels and their Cu2+absorption properties

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International Journal of Minerals,Metallurgy and Materials 2021年第2期28卷 317-324页

作者： Xiao-guang Liu qiu-shuo Mao Yue Jiang Yan Li Jia-lin Sun Fei-xue Huang School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Fundamental Experimental Centre of Nature Science University of Science and Technology BeijingBeijing 100083China

In order to remediate heavy metal ions from waste water,Al2O3–SiO2 composite aerogels are prepared via a sol–gel and an organic solvent sublimation drying *** characterisation techniques have been employed including X-ray diffraction(XRD),Fourier transform infrared spectrometry(FTIR),scanning electron microscope(SEM),Energy-dispersion X-ray spectroscopy(EDX),Brunauer–Emmett–Teller(BET)N2 adsoprtion isotherm,and atomic absorption spectrometer(AAS).XRD and FTIR suggest that the aerogels are composed of mainly Al2O3 and minor *** have a high specific surface area(827.544 m^2/g)and high porosity(86.0%)with a pore diameter of~20 *** microstructures show that the distribution of Al,Si,and O is *** aerogels can remove~99%Cu^2+within~40 min and then reach the equilibrium uptake(~69 mg/g).Preliminary calculations show that the Cu2+uptake by the aerogels follows pseudo second-order kinetics where chemical sorption may take effect owing largely to the high surface area,high porosity,and abundant functional groups,such as Al–OH and Si–OH,in the aerogel *** prepared aerogels may serve as efficient absorbents for Cu^2+removal.

关键词： heavy metal ion aerogel absorption organic solvent sublimation drying specific surface area porosity

Multi-Party Identity-Based Symmetric Privacy-Preserving Matching with Cloud Storage

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Wuhan University Journal of Natural Sciences 2014年第5期19卷 426-432页

作者： qiu shuo LIU Jiqiang SHI Yanfeng HAN Zhen School of Computer and Information Technology Beijing Jiaotong University

In this paper, we address the problem of multi-party privacy-preserving matching （PPM） over the encrypted data. We firstly construct an efficient identity-based re-encryption scheme like E1Gmal （IBR-E1Gmal） using combined public keys, which not only ensures the privacy of the information during the transmission process but also holds perfect multiplicative homomorphic property. Then we construct a multi-party identity-based symmetric privacy-preserving matching （M-IBSPM） protocol based on IBR-E1Gmal scheme in cloud environments, which realizes the privacy-preserving matching among multiple different parties as well as getting the symmetric output. Furthermore, with our M-IBSPM protocol, most of the computation costs are taken over by cloud service provider without leaking any privacy, and our protocol achieves perfect security and privacy in the semi-honest model. Finally, we analyze the efficiency for our protocol.

关键词： cloud computing symmetric privacy-preserving matching identity-based re-encryption

Stern-Geary Constant for X80 Pipeline Steel in the Presence of Different Corrosive Microorganisms

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Acta Metallurgica Sinica(English Letters) 2019年第12期32卷 1483-1489页

作者： Yu-Peng Sun Chun-Tian Yang Chun-Guang Yang Da-Ke Xu Qi Li Lu Yin Cheng-shuo qiu Dan liu Ke Yang College of Chemistry Liaoning UniversityShenyang 110036China Shenyang National Laboratory for Material Sciences Northeastern UniversityShenyang 110819China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

The Stern-Geary constant(B value)is indispensable to measure the corrosion rate in the microbiologically influenced corrosion(MIC)*** polarization resistance(LPR)and weight loss methods were used to study the variation of B values for X80 pipeline steel in the presence of Pseudomonas aeruginosa,Acetobacter aceti and Desulfovibrio *** results showed that B values in the presence of three different bacteria were 35.60±0.55 mV,33.00±1.00 mV and 58.60±0.55 mV,respectively,suggesting that the change of corrosion system significantly affected the B values of X80 pipeline *** work further indicated that the determination of B values is necessary to accurately measure the MIC rate by LPR method.

关键词： X80 pipeline steel Stern-Geary constant Corrosion rate Microbiologically influenced corrosion Biofilm

作为文学修辞的田野调查:《成都传》的非虚构诗学

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民族艺术 2023年第4期 101-110页

作者：邱硕四川省社会科学院文学研究所

蒋蓝《成都传》因极具方法论意识的田野调查和写作手法而在城市传中别具特色。蒋蓝的田野调查受到人类学经典民族志的影响,其“历史的在场”的观察体验法也间接地、部分地来自美国人类学博厄斯学派。将《成都传》与人类学民族志进行比... 详细信息

蒋蓝《成都传》因极具方法论意识的田野调查和写作手法而在城市传中别具特色。蒋蓝的田野调查受到人类学经典民族志的影响,其“历史的在场”的观察体验法也间接地、部分地来自美国人类学博厄斯学派。将《成都传》与人类学民族志进行比较可知,蒋蓝通过严肃而灵活的田野调查和将调查材料写入文本的“见证者式”修辞,达到了兼具“真实性”和有温度的“地方感”的非虚构地方文史写作的诗学要求。对《成都传》的文学人类学研究,可观照非虚构写作的“真实性”和“粗糙社会学”话题,也可完善“文学民族志”的研究方法。

关键词：田野调查非虚构蒋蓝《成都传》文学人类学

城市历史与公众记忆——成都城市形象塑造研究

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青海民族研究 2016年第2期27卷 18-22页

作者：邱硕四川大学四川成都610064

本文从人类学与公众史学的交叉互动出发,以"成都一东方伊甸园"城市品牌营销、成都市城市形象标识选择"太阳神鸟"这两个事件为案例,探究在城市形象塑造活动中,公众如何共享历史话语权以及城市历史与公众记忆如何互动。

关键词：公众史学人类学城市形象东方伊甸园太阳神鸟