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Observer-Based Controller Design for Singular Stochastic Markov Jump Systems with State Dependent Noise

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Journal of Systems Science & Complexity 2016年第4期29卷 946-958页

作者： zhao yong ZHANG Weihai College of Electrical Engineering and Automation and College of Mathematics and Systems Science Shandong University of Science and TechnologyQingdao 266590China College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266590China

This paper is concerned with the problem of observer-based controller design for singular stochastic Markov jump systems with state-dependent noise. Two concepts called "non-impulsiveness"and "mean square admissibility" are introduced, which are different from previous ones. Sufficient conditions for the open-and closed-loop singular stochastic Markov jump systems with state-dependent noise to be mean square admissible are provided in terms of strict LMIs. The controller gain and the observer gain which guarantee the resulting closed-loop error system to be mean square admissible are obtained in turn by solving the strict LMIs. A numerical example is presented to show the efficiency of the design approach.

关键词： Linear matrix inequalities observer-based controller singular stochastic systems stability.

Multi-attribute decision making model based on optimal membership and relative entropy

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Journal of Systems Engineering and Electronics 2009年第3期20卷 537-542页

作者： Rao Congjun zhao yong Inst. of Systems Engineering Huazhong Univ. of Science and Technology Wuhan 430074 P. R. China Coll. of Mathematics and Information Science Huanggang Normal Univ. Huanggang 438000 P. R. China

To study the problems of multi-attribute decision making in which the attribute values are given in the form of linguistic fuzzy numbers and the information of attribute weights are incomplete, a new multi-attribute decision making model is presented based on the optimal membership and the relative entropy. Firstly, the definitions of the optimal membership and the relative entropy are given. Secondly, for all alternatives, a set of preference weight vectors are obtained by solving a set of linear programming models whose goals axe all to maximize the optimal membership. Thirdly, a relative entropy model is established to aggregate the preference weight vectors, thus an optimal weight vector is determined. Based on this optimal weight vector, the algorithm of deviation degree minimization is proposed to rank all the alternatives. Finally, a decision making example is given to demonstrate the feasibility and rationality of this new model.

关键词： multi-attribute decision making optimal membership relative entropy deviation degree

The First Discovered Last Glacial Maximum (LGM) Event in the Middle and Lower Region of the yongding River Basin, Southern Beijing Plain

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Acta Geologica Sinica(English Edition) 2018年第4期92卷 1676-1677页

作者： zhao yong Beijing Institute of Geological Survey Beijing 100195 China

Objective LGM is a critical climate period in the late Quaternary and is the most recent extreme cold event. Clark et al. （2009） used 4271^14C records and 475 cosmogenic nuclide datings to define LGM be in 26.5-19.0 kaBP. LGM age often changes with time in different regions （Mix et al., 2001; Zhang Zhigang et al., 2015）. However, LGM has not been described to date in the Beijing region. During our field work in 2015-2017, LGM event stratigraphy was discovered from sevral boreholes in the middle and lower region of yongding river basin, Southern Beijing plain.

关键词： LGM Southern Beijing Plain The First Discovered Last Glacial Maximum

Essential Role of Chinese Medicines in Mesenchymal Stem Cells Transplantation for Treatment of Ischemic Stroke

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Chinese Journal of Integrative Medicine 2019年第10期25卷 723-727页

作者： zhao yong-hua State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macao

Ischemic stroke accounts for the majority of all strokes and has been primary causes of long-term disability and mortality in worldwide. Mesenchymal stem cell(MSC) therapy suggests significantly improved effects on neurological functional outcome, neurogenesis, angiogenesis, blood-brain barrier permeability, inflammatory injury, neuroprotection and so on, following stroke. However, the occurrence of adverse effects results in restriction of the therapy. Chinese medicine accumulates abundant clinical experiences on stroke for over two thousand years, and some formulae and active ingredients of Chinese medicines have presented obvious efficacies in clinical treatment. Therefore, based on Chinese medicine theory, we provide some ideas of screening agents for combination treatment of Chinese medicines and MSC for ischemic stroke, and summarize the potentials of Chinese medicines in MSC treatment and analyze the feasibilities of Chinese medicines against side effects of MSC therapy. Consequently, we propose Chinese medicines combing with MSC should be a promising approach to clinical stroke treatment in future.

关键词： Chinese medicines combination treatment ischemic stroke mesenchymal stem cell

Data Fusion with Genetic Algorithm Based Lifetime Prediction for Dependable Multi-Processor System-on-Chips

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Tsinghua Science and Technology 2023年第6期28卷 1041-1049页

作者： yong zhao Longkun Guo Xiaoyan Zhang NXP Semiconductor Eindhoven 5656the Netherlands School of Math and Statistics Fuzhou UniversityFuzhou 350108China School of Mathematical Science and Institute of Mathematics Nanjing Normal UniversityNanjing 210023China

With the prevalence of big-data technology,intricate,nanoscale Multi-Processor System-on-Chips(MP-SoCs)have been used in various safety-critical ***,with no extra countermeasures taken,this widespread use of MP-SoCs can lead to an undesirable decrease in their *** study presents a promising approach using a group of Embedded Instruments(EIs)inside a processor core for health *** health monitoring datasets obtained from the employed EIs are sampled and collated via the implemented experiment and thereafter used for conducting its remaining useful lifetime *** enables MP-SoCs to undertake preventive self-repair,thus realizing a zero mean downtime system and ensuring improved *** addition,a principal component analysis based algorithm is designed for realizing the EI data ***,a genetic algorithm based degradation optimization is employed to create a lifetime prediction model with respect to the processor.

关键词： data fusion genetic algorithm lifetime prediction health monitor multi-core System-on-Chips(SoCs) embedded instruments

Cross-immune tolerance:conception and its potential significance on transplantation tolerance

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Cellular & Molecular Immunology 2010年第1期7卷 20-25页

作者： yong zhao Xianchang Li Transplantation Biology Research Division State Key Laboratory of Biomembrane and Membrane BiotechnologyInstitute of ZoologyChinese Academy of SciencesBeijingChina Harvard Medical School Transplant Research CenterBeth Israel Deaconess Medical CenterBostonMAUSA

The diversity of alloreactive T cells in graft rejection and the presence of extensive crossreactivity among alloreactive T cells indicate thatthe induction oftransplantation tolerancemay fundamentally alter the size ofhost T-cell repertoireinvolved in protective immunity and immune surveillance,especially those that are crossreactive to conventional *** herein highlight the crossreactive nature of alloreactive T cells and the potential risks of altered T-cell repertoire associated with the induction of transplantation *** possibility that T-cell tolerance to one set of antigens results in their tolerance to other unrelated antigens due to T-cell crossreactivity and/or heterogeneity is defined as‘cross-immune tolerance’.The definition and significance of this concept were discussed in details.

关键词： crossreactivity T-cell repertoire tolerance transplantation

The organization and traffic engineering of a quantum cryptography network

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Science China(Physics,Mechanics & Astronomy) 2012年第9期55卷 1562-1570页

作者： zhao YuKang zhao MeiSheng zhao yong CHEN ZengBing Hefei National Laboratory for Physical Science at Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 China Shandong Institute of Quantum Science & TechnologyCo. Ltd. Jinan 250161 China Anhui Quantum Communication Technology Co. Ltd. Hefei 230088 China

How many users can a quantum cryptography network support when certain services are demanded? The answer to this question depends on three factors:the speed of quantum key distribution,the organization and traffic engineering of the quantum cryptography network,and the engineering of *** this article we focus on the second factor which is lacked in the literature to our knowledge but in urgent need for constructing an optimized large-scale quantum cryptography *** order to provide an overall understanding about a quantum cryptography network,we also briefly introduce the characteristics of quantum cryptography and service engineering.

关键词： quantum key distribution network

Burn-resistant behavior and mechanism of Ti14 alloy

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International Journal of Minerals,Metallurgy and Materials 2016年第2期23卷 215-221页

作者： yong-nan Chen Ya-zhou Huo Xu-ding Song zhao-zhao Bi Yang Gao yong-qing zhao School of Materials Science and Engineering Chang'an UniversityXi'an 710064China School of Construction Machinery Chang'an UniversityXi'an 710064China Northwest Institute for Nonferrous Metal Research Xi'an 710016China

The direct-current simulation burning method was used to investigate the burn-resistant behavior of Ti14 titanium *** results show that Ti14 alloy exhibits a better burn resistance than TC4 alloy（Ti-6A1-4V）.Cu is observed to preferentially migrate to the surface of Ti14 alloy during the burning reaction,and the burned product contains Cu,Cu2O,and *** oxide layer mainly comprising loose TiO2 is observed beneath the burned ***,Ti2Cu precipitates at grain boundaries near the interface of the oxide layer,preventing the contact between O2 and Ti and forming a rapid diffusion layer near the matrix ***,a multiple-layer structure with a Cu-enriched layer（burned product）/Cu-lean layer（oxide layer）/Cu-enriched layer（rapid diffusion layer） configuration is formed in the burn heat-affected zone of Ti14 alloy;this multiple-layer structure is beneficial for preventing O2 ***,although A1 can migrate to form A12O3 on the surface of TC4 alloy,the burn-resistant ability of TC4 is unimproved because the Al2O3 is discontinuous and not present in sufficient quantity.

关键词： titanium alloys interface morphology burn resistance

Homological Transfer between Additive Categories and Higher Differential Additive Categories

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Acta Mathematica Sinica,English Series 2024年第5期40卷 1325-1344页

作者： Xi TANG zhao yong HUANG School of Science Guilin University of Aerospace TechnologyGuilin 541004P.R.China Department of Mathematics Nanjing UniversityNanjing 210093P.R.China

Given an additive category C and an integer n≥*** higher differential additive category consists of objects X in C equipped with an endomorphism ϵ_(X)satisfying ϵ_(X)^(n).Let R be a,finite-dimensional basic algebra over an algebraically closed field and T the augmenting functor from the category of finitely generated left R-modules to that of finitely generated left R/(t^(n))-*** is proved that a finitely generated left R-module M isτ-rigid(respectively,(support)τ-tilting,almost completeτ-tilting)if and only if so is T(M)as a left R[t]/(t^(n))-***,R isτm-selfinjective if and only if so is R[t]/(t^(n)).

关键词： Higher differential objects Wakamatsu tilting subcategories G_(ω)-projective modules sup-portτ-tilting modules τ_(m)-selfinjective algebras precluster tilting subcategories