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A leakage-resilient certificateless public key encryption scheme with CCA2 security

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Frontiers of Information Technology & Electronic Engineering 2018年第4期19卷 481-493页

作者： Yan-wei ZHOU Bo YANG Hao CHENG qing-long wang School of Computer Science Shaanxi Normal University School of Information Engineering Chang'an University

In recent years,much attention has been focused on designing provably secure cryptographic primitives in the presence of key *** constructions of leakage-resilient cryptographic primitives have been ***,for any polynomial time adversary,most existing leakage-resilient cryptographic primitives cannot ensure that their outputs are random,and any polynomial time adversary can obtain a certain amount of leakage on the secret key from the corresponding output of a cryptographic *** this study,to achieve better performance,a new construction of a chosen ciphertext attack 2(CCA2)secure,leakage-resilient,and certificateless public-key encryption scheme is proposed,whose security is proved based on the hardness of the classic decisional Diffie-Hellman *** to our analysis,our method can tolerate leakage attacks on the private *** method also achieves better performance because polynomial time adversaries cannot achieve leakage on the private key from the corresponding ciphertext,and a key leakage ratio of 1/2 can be *** of these good features,our method may be significant in practical applications.

关键词： Certificatetess public-key encryption Leakage-resilience Provable security CCA2 security Decisional Diffie-Hellman

Putative zeatin O-glucosyltransferase OscZOG1 regulates root and shoot development and formation of agronomic traits in rice

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Journal of Integrative Plant Biology 2016年第7期58卷 627-641页

作者： Xiao-Ling Shang Rong-Rong Xie Hua Tian,qing-long wang and Fang-qing Guo Rong-Rong Xie Hua Tian qing-long wang Fang-qing Guo The National Key Laboratory of Plant Molecular Genetics and National Center of Plant Gene Research(shanghai) Institute of Plant Physiology&EcologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China.

As a ubiquitous reaction, glucosylation controls the bioactivity of cytokinins in plant growth and development. Here we show that genetic manipulation of zeatin-O- glucosylation regulates the formation of important agronomic traits in rice by manipulating the expression of OscZOG1 gene, encoding a putative zeatin O-glucosyltransferase. We found that OscZOG~ was preferentially expressed in shoot and root meristematic tissues and nascent organs. The growth of lateral roots was stimulated in the overexpression lines, but inhibited in RNA interference lines. In shoots, knockdown of OscZOG1 expression by RNA interference significantly im- proved tillering, panicle branching, grain number per panicle and seed size, which are important agronomic traits for grain yield. In contrast, constitutive expression of OscZOG1 leads to negative effects on the formation of the grain-yielding traits with a marked increase in the accumulation levels of cis-zeatin O-glucoside （cZOG） in the transgenic rice plants. In this study,our findings demonstrate the feasibility of improving the critical yield-determinant agronomic traits, including tiller number, panicle branches, total grain number per panicle and grain weight by downregulating the expression level of OscZOG1. Our results suggest that modulating the levels of cytokinin glucosylation can function as a fine-tuning switch in regulating the formation of agronomic traits in rice.

关键词： Cis-zeatin O-glucoside (cZOG) cytokinin glucosylation grain-yield traits lateral root panicle development rice

Designing Proportional-Integral Consensus Protocols for Second-Order Multi-Agent Systems Using Delayed and Memorized State Information

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 878-892页

作者： Honghai wang qing-long Han the College of Information Science and Engineering State Key Laboratory of Synthetical Automation for Process IndustriesNortheastern UniversityShenyang 110819China the School of Science Computing and Engineering TechnologiesSwinburne University of TechnologyMelbourneVIC 3122Australia

This paper is concerned with consensus of a secondorder linear time-invariant multi-agent system in the situation that there exists a communication delay among the agents in the network.A proportional-integral consensus protocol is designed by using delayed and memorized state *** the proportional-integral consensus protocol,the consensus problem of the multi-agent system is transformed into the problem of asymptotic stability of the corresponding linear time-invariant time-delay *** that the location of the eigenvalues of the corresponding characteristic function of the linear time-invariant time-delay system not only determines the stability of the system,but also plays a critical role in the dynamic performance of the *** this paper,based on recent results on the distribution of roots of quasi-polynomials,several necessary conditions for Hurwitz stability for a class of quasi-polynomials are first *** allowable regions of consensus protocol parameters are *** necessary and sufficient conditions for determining effective protocol parameters are *** designed protocol can achieve consensus and improve the dynamic performance of the second-order multi-agent ***,the effects of delays on consensus of systems of harmonic oscillators/double integrators under proportional-integral consensus protocols are ***,some results on proportional-integral consensus are derived for a class of high-order linear time-invariant multi-agent systems.

关键词： Consensus protocol Hurwitz stability multi-agent systems quasi-polynomials time delay

Roll gap prediction in acceleration and deceleration process of cold rolling based on a data-driven method

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Journal of Iron and Steel Research International 2023年第5期30卷 1013-1021页

作者： Yun-jian Hu Jie Sun Huai-tao Shi qing-long wang Jian-zhao Cao School of Mechanical Engineering Shenyang Jianzhu UniversityShenyang 110168LiaoningChina The State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina Department of Mechanical Engineering North China Electric Power UniversityBaoding 071003HebeiChina

Severe fluctuation of the effective roll gap in the acceleration and deceleration section of the cold rolling process is a significant factor causing thickness ***,the conventional roll gap compensation method and control strategy do not meet the stringent strip quality *** roll gap model in the acceleration and deceleration process is studied to increase the thickness control *** order to improve model accuracy,a roll gap prediction method based on data-driven is *** the complexities of the cold rolling process,the extreme gradient boosting(XGBoost)method is used to predict the roll gap model as the rolling speed ***,support vector regression and neural network-based methods are taken to evaluate and compare the prediction *** on the field data,the simulation experiments are carried *** demonstrated that the prediction performance of the proposed method outperformed the other two *** values of root mean square error,determination coefficient value,mean absolute percentage error and mean absolute error obtained from the XGBoost model were equal to 0.000346,0.952,7.02,and 0.00028,*** addition,the proposed method analyzed the contribution rates of the rolling affecting parameters on the roll *** data showed that in the controllable rolling parameters,the rolling speed is the most impacting factor that disturbs the roll gap model in the acceleration and deceleration process,which can provide a useful direction for actual roll gap adjustment.

关键词： Cold rolling Acceleration Deceleration Roll gap model Extreme gradient boosting Contribution rate Analysis

Nonlinear Filtering With Sample-Based Approximation Under Constrained Communication:Progress, Insights and Trends

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IEEE/CAA Journal of Automatica Sinica 2024年第7期11卷 1539-1556页

作者： Weihao Song Zidong wang Zhongkui Li Jianan wang qing-long Han IEEE the State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering ScienceCollege of Engineering Peking University the Department of Computer Science Brunel University London the School of Aerospace Engineering Beijing Institute of Technology the School of Science Computing and Engineering Technologies Swinburne University of Technology

The nonlinear filtering problem has enduringly been an active research topic in both academia and industry due to its ever-growing theoretical importance and practical *** main objective of nonlinear filtering is to infer the states of a nonlinear dynamical system of interest based on the available noisy measurements. In recent years, the advance of network communication technology has not only popularized the networked systems with apparent advantages in terms of installation,cost and maintenance, but also brought about a series of challenges to the design of nonlinear filtering algorithms, among which the communication constraint has been recognized as a dominating concern. In this context, a great number of investigations have been launched towards the networked nonlinear filtering problem with communication constraints, and many samplebased nonlinear filters have been developed to deal with the highly nonlinear and/or non-Gaussian scenarios. The aim of this paper is to provide a timely survey about the recent advances on the sample-based networked nonlinear filtering problem from the perspective of communication constraints. More specifically, we first review three important families of sample-based filtering methods known as the unscented Kalman filter, particle filter,and maximum correntropy filter. Then, the latest developments are surveyed with stress on the topics regarding incomplete/imperfect information, limited resources and cyber ***, several challenges and open problems are highlighted to shed some lights on the possible trends of future research in this realm.

关键词： Communication constraints maximum correntropy filter networked nonlinear filtering particle filter sample-based approximation unscented Kalman filter

Structure and 2p decay mechanism of^(18)Mg

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Nuclear Science and Techniques 2024年第6期35卷 145-154页

作者： long Zhou De-qing Fang Si-Min wang Hui Hua Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Research Center for Theoretical Nuclear Physics NSFC and Fudan UniversityShanghai 200438China School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China

The recently discovered,extremely proton-rich nuclide 18 Mg exhibits ground-state decay via two sequential two-proton(2p)emissions through the intermediate nucleus,*** study investigates the structure and the initial 2p decay mechanism of^(18)Mgby examining the density and correlations of the valence protons using a three-body Gamow coupled-channel *** results show that the ground state of^(18)Mgis significantly influenced by the continuum,resulting in a significant s-wave ***,based on the current framework,this does not lead to a significant deviation in mirror symmetry in either the structure or spectroscopy of the 18Mg-18C ***,the time evolution analysis of the^(18)Mgground state suggests a simultaneous 2p emission during the first step of *** observed nucleon-nucleon correlations align with those of the light-mass 2p emitters,indicating a consistent decay behavior within this nuclear region.

关键词： Structure of^(18)Mg Two-proton decay Proton-proton correlation

Data-based flatness prediction and optimization in tandem cold rolling

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Journal of Iron and Steel Research International 2021年第5期28卷 563-573页

作者： Jie Sun Peng-fei Shan Zhen Wei Yao-hui Hu qing-long wang Wen Peng Dian-hua Zhang State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina Department of Mechanical Engineering North China Electric Power UniversityBaoding 071003HebeiChina

In cold rolling process,the flatness actuator efficiency is the basis of the flatness control *** precision of flatness is determined by the setpoints of flatness *** the presence of modeling uncertainties and unmodeled nonlinearities in rolling process,it is difficult to obtain efficiency factors and setpoints of flatness actuators *** on the production data,a method to obtain the flatness actuator efficiency by using partial least square(PLS)combined with orthogonal signal correction(OSC)was *** with the experiential method and principal component analysis method,the OSC-PLS method shows superior performance in obtaining the flatness actuator efficiency factors at the last ***,kernel partial least square combined with artificial neural network(KPLS-ANN)was proposed to predict the flatness values and optimize the setpoints of flatness *** with KPLS or ANN,KPLS-ANN shows the best predictive *** root mean square error,mean absolute error and mean absolute percentage error are 0.51 IU,0.34 IU and 0.09,*** the setpoints of flatness actuators are optimized,KPLS-ANN shows better optimization *** result in an average flatness standard deviation is 2.22 IU,while the unoptimized value is 4.10 IU.

关键词： Cold rolling Flatness actuator efficiency Data-driven prediction Partial least square Flatness control optimization

Regulation of Calvin-Benson cycle enzymes under high temperature stress

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aBIOTECH 2022年第1期3卷 65-77页

作者： Juan-Hua Chen Ming Tang Xue-Qi Jin Han Li Li-Sha Chen qing long wang Ai-Zhen Sun Yin Yi Fang-qing Guo National Key Laboratory of Plant Molecular Genetics and CAS Center for Excellence in Molecular Plant Sciences Institute of Plant Physiology and EcologyChinese Academy of Sciences300 Fenglin RoadShanghai 200032China Key Laboratory of Plant Physiology and Developmental Regulation School of Life SciencesGuizhou Normal UniversityGuiyang 550001GuizhouChina Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China Guizhou Normal UniversityGuiyang 550001GuizhouChina University of Chinese Academy of Sciences Beijing 100049China

The Calvin Benson cycle(CBC)consists of three critical processes,including fixation of CO_(2) by Rubisco,reduction of 3-phosphoglycerate(3PGA)to triose phosphate(triose-P)with NADPH and ATP generated by the light reactions,and regeneration of ribulose 1,5-bisphosphate(RuBP)from *** activ-ities of photosynthesis-related proteins,mainly from the CBC,were found more significantly affected and regulated in plants challenged with high temperature stress,incuding Rubisco,Rubisco activase(RCA) and the enzymes involved in RuBP regeneration,such as sedoheptulose-1,7-bisphosphatase(SBPase).Over the past years,the regulatory mechanism of CBC,especially for redox-regulation,has attracted major interest,because balancing flux at the various enzymatic reactions and maintaining metabolite levels in a range are of critical importance for the optimal operation of CBC under high temperature stress,providing insights into the genetic manipulation of ***,we summarize recent progress regarding the identification of various layers of regulation point to the key enzymes of CBC for acclimation to environmental temperature changes along with open questions are also discussed.

关键词： Calvin-Benson cycle High temperature stress Redox regulation Rubisco Rubisco activase SBPase CO_(2)fixation

Privacy Protection for Blockchain-Based Healthcare IoT Systems: A Survey

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IEEE/CAA Journal of Automatica Sinica 2024年第8期11卷 1757-1776页

作者： Minfeng Qi Ziyuan wang qing-long Han Jun Zhang Shiping Chen Yang Xiang School of Science Computing and Engineering TechnologiesSwinburne University of TechnologyHawthorn3122VictoriaAustralia Faculty of Data Science City University of MacaoMacaoChina CSIRO Data61 SydneyNew South WalesAustralia

To enable precision medicine and remote patient monitoring,internet of healthcare things(IoHT)has gained significant interest as a promising *** the widespread use of IoHT,nonetheless,privacy infringements such as IoHT data leakage have raised serious public *** the other side,blockchain and distributed ledger technologies have demonstrated great potential for enhancing trustworthiness and privacy protection for IoHT *** this survey,a holistic review of existing blockchain-based IoHT systems is conducted to indicate the feasibility of combining blockchain and IoHT in privacy *** addition,various types of privacy challenges in IoHT are identified by examining general data protection regulation(GDPR).More importantly,an associated study of cutting-edge privacy-preserving techniques for the identified IoHT privacy challenges is ***,several challenges in four promising research areas for blockchain-based IoHT systems are pointed out,with the intent of motivating researchers working in these fields to develop possible solutions.

关键词： Blockchain internet of healthcare things(IoHT) privacy-preserving techniques(PPTs).