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Cooperative output regulation of heterogeneous directed multi-agent systems: a fully distributed model-free reinforcement learning framework

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Science China(Information Sciences) 2025年

作者： Xiongtao shi Yanjie LI Chenglong DU huiping LI Chaoyang CHEN Weihua GUI Guangdong Key Laboratory of Intelligent Morphing Mechanisms and Adaptive Robotics School of Mechanical Engineering and Automation Harbin Institute of Technology (Shenzhen) School of Automation Central South University School of Marine Science and Technology Northwestern Polytechnical University School of Information and Electrical Engineering Hunan University of Science and Technology

In this paper, the cooperative output regulation (COR) problem of a class of unknown heterogeneous multi-agent systems (MASs) with directed graphs is studied via a model-free reinforcement learning (RL) based fully distributed eventtriggered control (ETC) strategy. First, we consider the scenario that the exosystem is accessible globally to all agents, an internal model-based augmented algebraic Riccati equation (AARE) is constructed, and its solution is learned by the proposed model-free RL algorithm via online input-output data. Further, for the scenario that the exosystem is accessible only to its adjacent followers, the distributed observers are designed for each agent to get the state of the exosystem, and an internal modelbased fully distributed adaptive ETC protocol is then synthesized to construct the corresponding AARE, and the feedback gain matrix is learned in a model-free fashion. The model-free RL-based control protocol proposed in this paper can not only remove the prior knowledge of agents’ dynamics, but also release the dependence on global information by the adaptive event-triggered mechanism (ETM) and the new graph-based Lyapunov function. Finally, simulation results are illustrated to show the feasibility and effectiveness of the proposed control scheme.

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Aconapelsulfonines A and B,seco C_(20)-diterpenoid alkaloids deriving via Criegee rearrangements of napelline skeleton from Aconitum carmichaelii

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Chinese Chemical Letters 2021年第1期32卷 33-36页

作者： hui Liu Yuzhuo Wu Qinglan Guo Shuai shao Chengbo Xu Tiantai Zhang Jiangong shi State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China

Two sulfo nated seco C_(20)-diterpenoid alkaloids,aconapelsulfonines A(1) and B(2),were isolated from an aqueous extract of the raw material of "Fu Zi"(the Aconitum carmichaelii lateral roots),of which the structures were elucidated by various spectroscopic data,combined with X-ray crystallogra phic *** unprecedented skeletons are biogenetically proposed to be derived via Criegee rearrangements of the napelline-type *** two compounds exhibited dose-depended analgesic activities on an acetic acid-induced mice writhing test.

关键词： Ranunculaceae Aconitum carmichaelii C_(20)-Diterpenoid alkaloid Aconapelsulfonine Analgesic activity

数智赋能企业新质生产力的价值创造与溢出效应研究——基于中国制造业上市企业的实证检验

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山西师大学报（社会科学版） 2025年第1期52卷 20-33页

作者：惠宁史明聪西北大学经济管理学院西安710127

在新一轮科技革命和产业变革背景下,数智化将带来技术革命性突破,成为赋能新质生产力的重要引擎。文章以A股制造业上市企业为研究样本,与供应链网络数据进行匹配,考察数智赋能企业新质生产力的价值创造和价值溢出。结果表明:数智化能够... 详细信息

在新一轮科技革命和产业变革背景下,数智化将带来技术革命性突破,成为赋能新质生产力的重要引擎。文章以A股制造业上市企业为研究样本,与供应链网络数据进行匹配,考察数智赋能企业新质生产力的价值创造和价值溢出。结果表明:数智化能够赋能制造业企业新质生产力,且对上下游企业存在价值溢出,在经过内生性与稳健性检验后依然成立。机制分析表明,数智化通过协同转型机制、资源配置机制和知识溢出机制赋能企业新质生产力的价值溢出。异质性分析表明,当目标企业为国有企业、上下游企业为非高科技企业和小规模企业、企业间地理距离较近时,数智赋能制造业企业新质生产力的价值溢出效应更强。因此,要加大数智资源投入,激发企业创新活力,推动制造业数智化转型;强化协同转型机制、资源配置机制和知识溢出机制,发挥数智化赋能效应;依据企业特征分类施策,有序推动制造业企业数智化转型。

关键词：数智赋能新质生产力价值创造价值溢出

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Blow-up Dynamics of L^2 Solutions for the Davey–Stewartson System

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Acta Mathematica Sinica,English Series 2015年第3期31卷 411-429页

作者： shi hui ZHU Department of Mathematics Sichuan Normal University

We study the blow-up solutions for the Davey-Stewartson system（D-S system, for short）in L2x（R2）. First, we give the nonlinear profile decomposition of solutions for the D-S system. Then, we prove the existence of minimal mass blow-up solutions. Finally, by using the characteristic of minimal mass blow-up solutions, we obtain the limiting profile and a precisely mass concentration of L2 blow-up solutions for the D-S system.

关键词： Davey-Stewartson system minimal mass blow-up solution profile decomposition limiting profile mass concentration

Metal-center effect induced efficient charge transfer of metal-organic framework for strengthening Sb(Ⅴ)capture performance

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Nano Research 2022年第9期15卷 8516-8523页

作者： Deng You hui shi Mingming Peng Liming Yang Penghui shao Kai Yin Haozhi Wang Shenglian Luo Xubiao Luo State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan UniversityChangsha 410082China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource utilization Nanchang Hangkong UniversityNanchang 330063China Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education) School of Materials Science and EngineeringTianjin UniversityTianjin 300072China

The adsorbents–adsorbates interaction is critical for resourcelization in heavy metal wastewater ***,it is still indistinct to depict the impact of metal center effect on heavy metals removal performance in metal-organic frameworks(MOFs)-based ***,a series of MOFs with different metal centers of Mg(II),La(III),and Zr(IV)are rationally designed,and the effect of electronic structure on the Sb(V)removal performance is systematically *** obtained La-MGs achieve Sb(V)adsorption capacity of 897.6 mg/g,which is about 1.2 and 4.5 times above average than those of Zr-MGs and Mg-MGs,*** account of more edge adsorption sites achieve,the sites utilization efficiency of La-MGs(92.1%)is much better than Zr-MGs(75.0%)and Mg-MGs(20.4%).Furthermore,density functional theory(DFT)calculations reveal that La-MGs are more active than Mg-MGs and Zr-MGs,owing to the lower adsorption energy,higher charge transfer,and stronger bonding interaction,which will promote the Sb(V)removal *** experimental results in practical water indicate that La-MGs effectively capture antimony at low concentration,reaching drinking water standard in samples from Ganjiang *** study opens an avenue for atomic-level insight into high-efficient absorbents design for water treatment from electronic structuremodification of active centers.

关键词： metal-organic frameworks metal center effect electronic structure theoretical calculation Sb(V)removal

Inhibition of the NLRP3 inflammasome attenuates spiral ganglion neuron degeneration in aminoglycoside-induced hearing loss

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Neural Regeneration Research 2025年第10期20卷 3025-3039页

作者： Jia Fang Zhuangzhuang Li Pengjun Wang Xiaoxu Zhang Song Mao Yini Li Dongzhen Yu Xiaoyan Li Yazhi Xing Haibo shi Shankai Yin Department of Otolaryngology Head and Neck Surgery Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineOtolaryngology Institute of Shanghai Jiao Tong UniversityShanghai Key Laboratory of Sleep Disordered BreathingShanghaiChina Department of Otorhinolaryngology-Head and Neck Surgery Shanghai Children’s HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina

Aminoglycosides are a widely used class of antibacterials renowned for their effectiveness and broad antimicrobial ***,their use leads to irreversible hearing damage by causing apoptosis of hair cells as their direct *** addition,the hearing damage caused by aminoglycosides involves damage of spiral ganglion neurons upon *** investigate the mechanisms underlying spiral ganglion neuron degeneration induced by aminoglycosides,we used a C57BL/6J mouse model treated with *** found that the mice exhibited auditory deficits following the acute loss of outer hair *** ganglion neurons displayed hallmarks of pyroptosis and exhibited progressive degeneration over *** profiling of these neurons showed significant upregulation of genes associated with inflammation and immune response,particularly those related to the NLRP3 *** of the canonical pyroptotic pathway in spiral ganglion neurons was observed,accompanied by infiltration of macrophages and the release of proinflammatory *** intervention targeting NLRP3 using Mcc950 and genetic intervention using NLRP3 knockout ameliorated spiral ganglion neuron degeneration in the injury *** findings suggest that NLRP3 inflammasome-mediated pyroptosis plays a role in aminoglycoside-induced spiral ganglion neuron *** of this pathway may offer a potential therapeutic strategy for treating sensorineural hearing loss by reducing spiral ganglion neuron degeneration.

关键词： degeneration hearing loss macrophages Mcc950 neuroinflammation NLRP3 inflammasome ototoxicity pyroptosis sensorineural hearing loss spiral ganglion neuron

T cell interactions with microglia in immune-inflammatory processes of ischemic stroke

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Neural Regeneration Research 2025年第5期20卷 1277-1292页

作者： Yuxiao Zheng Zilin Ren Ying Liu Juntang Yan Congai Chen Yanhui He Yuyu shi Fafeng Cheng Qingguo Wang Changxiang Li Xueqian Wang School of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijingChina Library Beijing University of Chinese MedicineBeijingChina Dongzhimen Hospital Beijing University of Chinese MedicineBeijingChina

The primary mechanism of secondary injury after cerebral ischemia may be the brain inflammation that emerges after an ischemic stroke,which promotes neuronal death and inhibits nerve tissue *** the first immune cells to be activated after an ischemic stroke,microglia play an important immunomodulatory role in the progression of the *** an ischemic stroke,peripheral blood immune cells(mainly T cells)are recruited to the central nervous system by chemokines secreted by immune cells in the brain,where they interact with central nervous system cells(mainly microglia)to trigger a secondary neuroimmune *** review summarizes the interactions between T cells and microglia in the immune-inflammatory processes of ischemic *** found that,during ischemic stroke,T cells and microglia demonstrate a more pronounced synergistic ***1,Th17,and M1 microglia can co-secrete proinflammatory factors,such as interferon-γ,tumor necrosis factor-α,and interleukin-1β,to promote neuroinflammation and exacerbate brain ***2,Treg,and M2 microglia jointly secrete anti-inflammatory factors,such as interleukin-4,interleukin-10,and transforming growth factor-β,to inhibit the progression of neuroinflammation,as well as growth factors such as brain-derived neurotrophic factor to promote nerve regeneration and repair brain *** interactions between microglia and T cells influence the direction of the subsequent neuroinflammation,which in turn determines the prognosis of ischemic stroke *** trials have been conducted on the ways to modulate the interactions between T cells and microglia toward anti-inflammatory communication using the immunosuppressant fingolimod or overdosing with Treg cells to promote neural tissue repair and reduce the damage caused by ischemic ***,such studies have been relatively infrequent,and clinical experience is still *** summary,in ischemic stroke,T cell subsets and activated micro

关键词： brain immune inflammation interaction ischemic stroke mechanism microglia neuron secondary injury T cells

Translation of steel surface defect detection algorithm with fusion of multiple attention detection heads

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Optoelectronics Letters 2025年

作者： shi Tao CUI Jie LI Song Tianjin University of Technology， School of Electrical Engineering and Automation North China University of Science and Technology， School of Electrical Engineering

This paper proposes an end-to-end defect detection algorithm model called YOLOv5-CJ to address the issues of missed detections and low accuracy in visual steel surface defect detection. By incorporating the C3＿MSBlock module， which is designed based on Res2Net and contains multi-scale information， into the backbone network， the model can represent multi-scale features at a finer granularity level and increase the network's receptive field. In the detection head， the DyHead attention mechanism is introduced， which integrates scale awareness， spatial awareness， and task awareness， to help the model better cope with complex industrial scenes with large background interference， significant defect scale variations， and easily confused defect categories. Soft NMS is employed to enhance the recognition capability in overlapping regions. Experimental results demonstrate that the proposed YOLOv5-CJ model outperforms YOLOv5s，achieving an average precision (mAP0.5 and mAP0.5:0.95) improvement of 1.9% and 7.2% on the NEU-DET dataset， and 5.3% and 4.3% on the GC10-DET dataset， respectively， validating the feasibility and effectiveness of the proposed model.

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Predicting Supermassive Black Hole Mass with Machine Learning Methods

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Research in Astronomy and Astrophysics 2022年第8期22卷 182-190页

作者： Yi He Qi Guo shi shao Key Laboratory for Computational Astrophysics National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China

It is crucial to measure the mass of supermassive black holes(SMBHs)in understanding the co-evolution between the SMBHs and their host *** methods usually require spectral data which are expensive to *** use the AGN catalog from the Sloan Digital Sky Survey project Data Release 7(DR7)to investigate the correlations between SMBH mass and their host galaxy *** apply the machine learning algorithms,such as Lasso regression,to establish the correlation between the SMBH mass and various photometric properties of their host *** find an empirical formula that can predict the SMBH mass according to galaxy luminosity,colors,surface brightness,and *** root-mean-square error is 0.5 dex,comparable to the intrinsic scatter in SMBH mass *** 1σscatter in the relation between the SMBH mass and the combined galaxy properties relation is 0.48 dex,smaller than the scatter in the SMBH mass versus galaxy stellar mass *** relation could be used to study the SMBH mass function and the AGN duty cycles in the future.

关键词： (galaxies:)quasars:supermassive black holes galaxies:evolution methods:data analysis