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Recursive Filtering for Stochastic Systems With Filter-and-Forward Successive Relays

IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1202-1212页

作者： Hailong Tan Bo Shen Qi Li hongjian liu School of Mathematics-Physics and Finance Anhui Polytechnic UniversityWuhu 241000China Anhui Future Technology Research Institute Anhui Polytechnic UniversityWuhu 241000China College of Information Science and Technology Donghua UniversityShanghai 201620China Engineering Research Center of Digitalized Textile and Fashion Technology Ministry of EducationShanghai 201620China School of Information Science and Engineering Hangzhou Normal UniversityHangzhou 311121China

In this paper,the recursive filtering problem is considered for stochastic systems over filter-and-forward successive relay(FFSR)*** FFSR is located between the sensor and the remote filter to forward the *** the successive relay,two cooperative relay nodes are adopted to forward the signals alternatively,thereby existing switching characteristics and inter-relay interferences(IRI).Since the filter-and-forward scheme is employed,the signal received by the relay is retransmitted after it passes through a linear *** objective of the paper is to concurrently design optimal recursive filters for FFSR and stochastic systems against switching characteristics and IRI of ***,a uniform measurement model is proposed by analyzing the transmission mechanism of ***,novel filter structures with switching parameters are constructed for both FFSR and stochastic *** the help of the inductive method,filtering error covariances are presented in the form of coupled difference ***,the desired filter gain matrices are further obtained by minimizing the trace of filtering error ***,the stability performance of the filtering algorithm is analyzed where the uniform bound is guaranteed on the filtering error ***,the effectiveness of the proposed filtering method over FFSR is verified by a three-order resistance-inductance-capacitance circuit system.

关键词： filtering successive stochastic

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Anomaly-Resistant Decentralized State Estimation Under Minimum Error Entropy With Fiducial Points for Wide-Area Power Systems

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 74-87页

作者： Bogang Qu Zidong Wang Bo Shen Hongli Dong hongjian liu the College of Automation Engineering Shanghai University of Electric PowerShanghai 200090China IEEE the Department of Computer Science Brunel University LondonUxbridgeMiddiesex UB83PHUK the College of Information Science and Technology Donghua UniversityShanghai 200051 the Engineering Research Center of Digitalized Textile and Fashion Technology Ministry of EducationShanghai 201620China the Artificial Intelligence Energy Research Institute Northeast Petroleum UniversityDaqing 163318 the Heilongjiang Provincial Key Laboratory of Networking and Intelligent Control Northeast PetroleumDaqing 163318 the Sanya Offshore Oil&Gas Research Institute Northeast Petroleum UniversitySanya 572024China the Key Laboratory of Advanced Perception and Intelligent Control of High-End Equipment Ministry of EducationAnhui Polytechnic UniversityWuhu 2410000 the School of Mathematics and Physics Anhui Polytechnic UniversityWuhu 241000China

This paper investigates the anomaly-resistant decentralized state estimation(SE) problem for a class of wide-area power systems which are divided into several non-overlapping areas connected through transmission lines. Two classes of measurements(i.e., local measurements and edge measurements) are obtained, respectively, from the individual area and the transmission lines. A decentralized state estimator, whose performance is resistant against measurement with anomalies, is designed based on the minimum error entropy with fiducial points(MEEF) criterion. Specifically, 1) An augmented model, which incorporates the local prediction and local measurement, is developed by resorting to the unscented transformation approach and the statistical linearization approach;2) Using the augmented model, an MEEF-based cost function is designed that reflects the local prediction errors of the state and the measurement;and 3) The local estimate is first obtained by minimizing the MEEF-based cost function through a fixed-point iteration and then updated by using the edge measuring information. Finally, simulation experiments with three scenarios are carried out on the IEEE 14-bus system to illustrate the validity of the proposed anomaly-resistant decentralized SE scheme.

关键词： Decentralized state estimation(SE) measurements with anomalies minimum error entropy unscented Kalman filter wide-area power systems

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Bimolecular reduction of carbon dioxide: double synthons for alkynes trifunctionalization

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Science China Chemistry 2024年第3期67卷 841-847页

作者： Wenfang Xiong Xiaobin Tan hongjian liu Baiyao Zhu Jinwu Zhao Jianxiao Li Chaorong Qi Huanfeng Jiang School of Pharmacy Guangdong Medical UniversityDongguan 523808China Key Lab of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640China

Carbon dioxide reduction, as a sustainable and versatile strategy for the access of chemical fuels, has attracted increasing attention and enormous efforts have been devoted to it in recent years. However, employing carbon dioxide as double synthons via bimolecular reduction remains challenging. Here, by leveraging the bimolecular reduction of carbon dioxide to carbonyl and methyl respectively, we describe a Pd-catalyzed trifunctionalization of alkynes with aryl iodide for the first time and showcase its advantages on the formation of various β-diketones and their application in the constructing of heterocyclic compounds with important biological activity, including pyrimidine, oxazole, pyrazole.

关键词： carbon dioxide bimolecular reduction trifunctionalization double synthons

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Outlier-resistant distributed fusion filtering for nonlinear discrete-time singular systems under a dynamic event-triggered scheme

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Frontiers of Information Technology & Electronic Engineering 2024年第2期25卷 237-249页

作者： Zhibin HU Jun HU Cai CHEN hongjian liu Xiaojian YI Department of Applied Mathematics Harbin University of Science and TechnologyHarbin150080China Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and TechnologyHarbin150080China School of Automation Harbin University of Science and TechnologyHarbin150080China School of Mathematics and Physics Anhui Polytechnic UniversityWuhu241000China School of Mechatronical Engineering Beijing Institute of TechnologyBeijing100081China Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing314003China Tangshan Research Institute Beijing Institute of TechnologyTangshan063099China

This paper investigates the problem of outlier-resistant distributed fusion filtering(DFF)for a class of multi-sensor nonlinear singular systems(MSNSSs)under a dynamic event-triggered scheme(DETS).To relieve the effect of measurement outliers in data transmission,a self-adaptive saturation function is ***,to further reduce the energy consumption of each sensor node and improve the efficiency of resource utilization,a DETS is adopted to regulate the frequency of data *** the addressed MSNSSs,our purpose is to construct the local outlier-resistant filter under the effects of the measurement outliers and the DETS;the local upper bound(UB)on the filtering error covariance(FEC)is derived by solving the difference equations and minimized by designing proper filter ***,according to the local filters and their UBs,a DFF algorithm is presented in terms of the inverse covariance intersection fusion *** such,the proposed DFF algorithm has the advantages of reducing the frequency of data transmission and the impact of measurement outliers,thereby improving the estimation ***,the uniform boundedness of the filtering error is discussed and a corresponding sufficient condition is ***,the validity of the developed algorithm is checked using a simulation example.

关键词： Distributed fusion filtering Multi-sensor nonlinear singular systems Dynamic event-triggered scheme Outlier-resistant filter Uniform boundedness

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The application of the strip-shaped cymba conchae orthosis in the nonsurgical correction of complex auricular deformity

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Journal of Otology 2024年第1期19卷 24-29页

作者： Huijuan Xu Shaoguang Ding Fei Zhang Zhifeng Zhang Xiangyu Chen Mingyang Li Haitao Yang Fugen Han hongjian liu Department of Otolaryngology Head and Neck Surgery People’s Hospital of Henan UniversityHenan Provincial People’s HospitalZhengzhouChina Department of Otolaryngology Head and Neck Surgery Henan Provincial People’s HospitalPeople’s Hospital of Zhengzhou UniversityPeople’s Hospital of Henan UniversityZhengzhouChina Department of Otolaryngology Head and Neck Surgery Henan Children’s HospitalZhengzhouChina Department of Otolaryngology Head and Neck Surgery The Third People’s Hospital of ZhengzhouZhengzhouChina Zheng Dong Mihuan Clinic ZhengzhouChina

Objective: This study aims to evaluate the efficacy and safety of using a strip-shaped cymba conchae orthosis for the nonsurgical correction of complex auricular deformities. Methods: Clinical data were collected from 2020 to 2021 for 6 patients who underwent correction using a stripshaped cymba conchae orthosis. The indications, corrective effects, and complications associated with use of the orthosis were analyzed. Results: There were four indications for treatment: cryptotia with helix adhesion;cryptotia with grade I microtia;cryptotia with excessive helix thickness;and auricular deformity beyond the treatment time window(≥6 months). Excellent corrective effects were observed in all 6 patients. Complications occurred in one patient, who recovered after symptomatic treatment. Conclusion: The use of a strip-shaped cymba conchae orthosis alone or combined with a U-shaped helix orthosis presents a feasible approach for correcting complex auricular deformities or deformities beyond the treatment time window in pediatric patients.

关键词： Cymba conchae Auricular deformity Cryptotia Nonsurgical correction Orthosis

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Chitosan Oligosaccharide Induces Plant Resistance Gene Expression in Pinus massoniana

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Journal of Agricultural Science and Technology(A) 2024年第2期14卷 107-117页

作者： Huayang Yin Wanlin Guo Qingtong Wang Jianmin Fang hongjian liu Guangping Dong Xiaojuan Li Institute of Forest Protection Anhui Provincial Academy of ForestryHefei 230031AnhuiChina Key Laboratory of National Forestry and Grassland Administration on Prevention and Control Technology of Pine Wilt Disease Hefei 230031AnhuiChina

Chitosan oligosaccharides(COSs)are the main degradation products from chitosan or chitin and have been reported to induce resistance to diseases in herbaceous plants like cucumber and ***,pine wilt disease(PWD)is a devastating disease of conifer tree ***,we hypothesized that COSs induce plant resistance gene(PRG)expression in the woody plant Masson pine,Pinus *** were inoculated into *** seedlings and the BGISEQ-500 platform was used to generate transcriptomes from COSs-treated *** and control seedlings.A total of 501 differentially expressed genes(DEGs)were identified by comparing the treatment and control groups.A total of 251(50.1%)DEGs were up-regulated in the treatment relative to the control seedlings and 250(49.9%)were *** of COSs induced the expression of 31 PRGs in *** seedlings and the relative expression levels of six of the PRGs were verified by *** is the first study to demonstrate that COS induces the expression of PRGs in a tree *** results provide important insights into the function of COSs and further the prospects of developing a COS-based immune inducer for controlling PWD.

关键词： COS PRG Pinus massoniana pine wilt disease

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高校教师混合式教学持续使用意愿研究——基于UTAUT2模型

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山东商业职业技术学院学报 2024年第2期24卷 50-56页

作者：刘忠敏刘泓涧吉林师范大学经济管理与法学学院吉林四平136000

结合混合式教学模式的特点,构建基于UTAUT2理论的混合式教学持续使用意愿模型,通过实证分析发现:在教师对混合式教学的持续使用意愿中,期望绩效、享乐动机起正向作用;努力绩效、社会影响、便利条件的作用不显著;努力绩效通过影响期望绩... 详细信息

结合混合式教学模式的特点,构建基于UTAUT2理论的混合式教学持续使用意愿模型,通过实证分析发现:在教师对混合式教学的持续使用意愿中,期望绩效、享乐动机起正向作用;努力绩效、社会影响、便利条件的作用不显著;努力绩效通过影响期望绩效起正向作用;创新性对教师的期望绩效和努力绩效都产生正向影响。最后根据实证分析、问卷调查及访谈的结果提出相应的建议。

关键词：混合式教学持续使用意愿 UTAUT2模型

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基于AHP-熵权法的GIS高速公路选线研究

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交通节能与环保 2024年第2期20卷 61-66页

作者：刘红健刘亚静华北理工大学矿业工程学院河北唐山063210

利用GIS空间分析技术和综合评价法进行高速公路的路径规划,建立一种基于AHP-熵权法的公路选线模型,从而降低规划过程的复杂性。以河北沿海高速唐山段为研究对象,选取土地利用类型、坡度、坡向、水文、断层、土壤类型、GDP、旅游资源和... 详细信息

利用GIS空间分析技术和综合评价法进行高速公路的路径规划,建立一种基于AHP-熵权法的公路选线模型,从而降低规划过程的复杂性。以河北沿海高速唐山段为研究对象,选取土地利用类型、坡度、坡向、水文、断层、土壤类型、GDP、旅游资源和生态敏感度九种地理指标评价因子,分别建立基于层次分析法和熵权法的高速公路选线方案决策模型,并结合两种方法建立综合评价模型生成最优路径与原路径进行对比。结果表明,结合两种评价方法生成的最优路径与原路径有较高拟合,基于AHP-熵权法的高速公路选线模型在对比有一定优势。

关键词：道路工程公路选线地理信息系统高速公路 AHP

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Distributed Resilient Fusion Filtering for Nonlinear Systems with Random Sensor Delays:Optimized Algorithm Design and Boundedness Analysis

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系统科学与复杂性学报:英文版 2023年第4期36卷 1423-1442页

作者： HU Jun HU Zhibin DONG Hongli liu hongjian School of Automation Harbin University of Science and TechnologyHarbin 150080China Department of Mathematics Harbin University of Science and TechnologyHarbin 150080China Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and TechnologyHarbin 150080China Heilongjiang Provincial Key Laboratory of Networking and Intelligent Control Northeast Petroleum UniversityDaqing 163318China School of Mathematics-Physics and Finance Anhui Polytechnic UniversityWuhu 241000China

This paper is concerned with the distributed resilient fusion filtering(DRFF)problem for a class of time-varying multi-sensor nonlinear stochastic systems(MNSSs)with random sensor delays(RSDs).The phenomenon of the RSDs is modeled by a set of random variables with certain statistical *** addition,the nonlinear function is handled via Taylor expansion in order to deal with the nonlinear fusion filtering *** aim of the addressed issue is to propose a DRFF scheme for MNSSs such that,for both RSDs and estimator gain perturbations,certain upper bounds of estimation error covariance(EEC)are given and locally minimized at every sample *** the light of the obtained local filters,a new DRFF algorithm is developed via the matrix-weighted fusion ***,a sufficient condition is presented,which can guarantee that the local upper bound of the EEC is ***,a numerical example is provided,which can show the usefulness of the developed DRFF approach.

关键词： Distributed resilient fusion filtering matrix-weighted fusion nonlinear time-varying systems random sensor delays

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Recursive Filtering for Stochastic Systems With Filter-and-Forward Successive Relays

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自动化学报（英文版） 2024年第5期 1202页

作者： Hailong Tan Bo Shen Qi Li hongjian liu

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