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Self organizing optimization and phase transition in reinforcement learning minority game system

Frontiers of physics 2024年第4期19卷 297-309页

作者： Si-Ping Zhang Jia-Qi Dong Hui-Yu Zhang Yi-xuan lü Jue Wang Zi-Gang Huang Key laboratory of Biomedical Information Engineering of Ministry of Education Key Laboratory of Neuro-informatics&Rehabilitation Engineering of Ministry of Civil Affairsand Institute of Health and Rehabilitation ScienceSchool of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China lanzhou Center for Theoretical Physics and Key laboratory of Theoretical Physics of Gansu Province Lanzhou UniversityLanzhou 730000China

Whether the complex game system composed of a large number of artificial intelligence(AI)agents empowered with reinforcement learning can produce extremely favorable collective behaviors just through the way of agent self-exploration is a matter of practical *** this paper,we address this question by combining the typical theoretical model of resource allocation system,the minority game model,with reinforcement *** individual participating in the game is set to have a certain degree of intelligence based on reinforcement learning *** particular,we demonstrate that as AI agents gradually becomes familiar with the unknown environment and tries to provide optimal actions to maximize payoff,the whole system continues to approach the optimal state under certain parameter combinations,herding is effectively suppressed by an oscillating collective behavior which is a self-organizing pattern without any external *** interesting phenomenon is that a first-order phase transition is revealed based on some numerical results in our multi-agents system with reinforcement *** order to further understand the dynamic behavior of agent learning,we define and analyze the conversion path of belief mode,and find that the self-organizing condensation of belief modes appeared for the given trial and error rates in the AI ***,we provide a detection method for period-two oscillation collective pattern emergence based on the Kullback–leibler divergence and give the parameter position where the period-two appears.

关键词： oscillatory evolution collective behaviors phase transition reinforcement learning minority game

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补肾活血方对复发性流产患者血清VEGF、HIF-1α、TGF-β_(1)、sflt-1影响研究

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时珍国医国药 2024年第1期35卷 72-74页

作者：韩永梅吕宣宣河南中医药大学河南郑州450000 河南大学淮河医院河南开封475000

目的研究补肾活血方对APl阳性RSA患者外周血VEGF、HIF-1α、TGF-β_(1)、sflt-1、miR-423-5p蛋白表达量影响。方法选取APl阳性RSA患者60例,分别于孕前给予药物调理。其中观察组服用补肾活血方,对照组服用肠溶阿司匹林,均治疗3个月。... 详细信息

目的研究补肾活血方对APl阳性RSA患者外周血VEGF、HIF-1α、TGF-β_(1)、sflt-1、miR-423-5p蛋白表达量影响。方法选取APl阳性RSA患者60例,分别于孕前给予药物调理。其中观察组服用补肾活血方,对照组服用肠溶阿司匹林,均治疗3个月。两组治疗前后分别检测血清VEGF、HIF-1α、TGF-β_(1)、sflt-1、miR-423-5p蛋白表达及中医证候积分。结果两组治疗后VEGF蛋白表达均显著升高;与对照组比较,观察组VEGF蛋白表达量显著高于对照组;两组治疗前后,HIF-1α蛋白表达量均无显著性差异;治疗后两组TGF-β1蛋白表达显著升高,与对照组比较,观察组TGF-β1蛋白表达显著升高;治疗后两组sflt-1蛋白表达显著降低;与对照组比较,观察组sflt-1蛋白表达显著降低。两组治疗后miR-423-5p相对表达量均降低,观察组优于对照组(Plt-1、miR-423-5p蛋白表达等途径,改善APl对子宫内膜的不良影响;同时可有效降低中医证候积分,从而降低再次妊娠后流产的发生率。

关键词：补肾活血方抗磷脂抗体复发性流产血清VEGF HIF-1 TGF-β sflt-1 miR-423-5p

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以Researching为例谈科技期刊英文数字出版与传播平台建设

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中国科技期刊研究 2024年第9期35卷 1283-1289页

作者：邓迎吕璇刘彧郑继承马沂王晓峰杨蕾《中国激光》杂志社有限公司中国科学院上海光学精密机械研究所

【目的】从中国激光杂志社实施数字出版与传播平台国际化战略的角度，总结Researching平台的建设方案先进性和服务刊群发展的有效性。【方法】结合文献调研，分析现有英文数字出版与传播平台建设的不足。对Researching平台筹办、建设模... 详细信息

【目的】从中国激光杂志社实施数字出版与传播平台国际化战略的角度，总结Researching平台的建设方案先进性和服务刊群发展的有效性。【方法】结合文献调研，分析现有英文数字出版与传播平台建设的不足。对Researching平台筹办、建设模式、核心技术、重要功能、刊群服务等方面进行多角度梳理和分析。以期刊国际化发展为核心，分享Researching平台服务刊群出版与传播的有效举措。【结果】Researching平台的建设目标是利用云服务模式，构建自主、安全、可靠、可扩展、可复制的英文数字平台。在建设与运营过程中，Researching平台不断深化对集群化理念的实践，极大地促进光学学科优秀期刊的培育和发展。【结论】采用云服务架构和自主研发模式建设英文科技期刊数字出版与传播平台，既能有效利用现有平台建设的有益经验和数据优势，又能积累自主知识产权的技术，同时打造一支优秀的团队，促进科技期刊集群的国际化发展，探索科技期刊集群“造船出海”的有效途径。

关键词：期刊集群英文数字出版与传播平台国际化数字化云服务

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Dynamic analysis of a flameless combustion model combustor

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Science China(Technological Sciences) 2010年第8期53卷 2291-2298页

作者： CUI YuFeng lüxuan XU Gang NIE ChaoQun Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China Graduate School of the Chinese Academy of Sciences Beijing 100190China

Flameless combustion is a new technology with the following advantages:1)Ultra-low emissions of both NOX and CO;2)fuel flexibility,from liquid fuels,natural gas to hydrogen-rich syngas;3)lower possibility of flashback and thermoacoustic *** this paper,we focus on the dynamic characteristics of a flameless model *** results show that flameless combustion can lower emissions while maintaining combustion ***,combining a pilot flame with flameless combustion may excite thermoacoustic instability.

关键词： flameless combustion thermoacoustic oscillations dynamic pressure characteristics gas turbine

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金纳米颗粒负载光敏剂在改善恶性肿瘤光动力治疗中的研究进展

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中国现代医学杂志 2024年第2期34卷 60-65页

作者：孙倩王茜吕好选索玉平山西医科大学基础医学院生理学教研室山西太原030001 山西医科大学第五临床医学院山西太原030012 山西省人民医院妇产科山西太原030012

金纳米颗粒(AuNPs)是纳米医学中常用的纳米材料之一。AuNPs作为载体可以将药物精确地输送至靶细胞或靶组织,提高疾病的诊断和治疗效率。光动力疗法(PDT)在治疗肿瘤上拥有巨大潜力,是被批准用于临床治疗的新方法。有证据表明,光敏剂(PS)... 详细信息

金纳米颗粒(AuNPs)是纳米医学中常用的纳米材料之一。AuNPs作为载体可以将药物精确地输送至靶细胞或靶组织,提高疾病的诊断和治疗效率。光动力疗法(PDT)在治疗肿瘤上拥有巨大潜力,是被批准用于临床治疗的新方法。有证据表明,光敏剂(PS)通过共价键或者非共价键的相互作用包被在AuNPs上,不仅能提高肿瘤细胞对PS的有效摄取,增强PDT的效率,还可以克服单纯PDT的局限性。该文综述了AuNPs的类型、特点及其应用,着重介绍了AuNPs与PDT相结合的抗癌活性。

关键词：肿瘤金纳米颗粒光动力疗法光敏剂联合治疗

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The Influence of limestone Powder and Metakaolin Co-Blending on the Hydration Process and Mechanical Properties of Q-Phase Cement

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1169-1176页

作者： XIONG xuan HE Yongjia lÜlinnü MA Jie WANG Fazhou State Key laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Hubei Key laboratory of Theory and Application of Advanced Materials Mechanics School of ScienceWuhan University of TechnologyWuhan 430070China China Railway Design Corporation Tianjin 300250China

A ternary system comprising Ca_(20)Al_(26)Mg_(3)Si_(3)O_(68)(Q-phase),limestone,and metakaolin is proposed,and its hydration behavior,hydration product phases,microstructure,and mechanical properties are investigated and compared with pure Q-phase *** results indicate that the ternary system exhibits exceptional and sustained compressive strength even under a 40℃environment,significantly outperforming pure *** mechanism lies in that metakaolin effectively inhibits the transformation of metastable ***,the interactions among Q-phase,limestone,and metakaolin further enhance the cementitious *** ternary system effectively addresses potential issues of strength loss in Q-phase cement application,and as a low-carbon cementitious material system,it holds promising potential applications.

关键词： Q-phase limestone metakaolin hydration compressive strength

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Time-Aware lSTM Neural Networks for Dynamic Personalized Recommendation on Business Intelligence

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Tsinghua Science and Technology 2024年第1期29卷 185-196页

作者： xuan Yang James A.Esquivel Graduate School Angeles University FoundationAngeles City 2009Philippines Shandong Provincial University laboratory for Protected Horticulture Weifang University of Science and TechnologyWeifang 262700China

Personalized recommendation plays a critical role in providing decision-making support for product and service analysis in the field of business ***,deep neural network-based sequential recommendation models gained considerable ***,existing approaches pay litle attention to users'dynamically evolving interests,which are influenced by product attributes,especially product *** overcome these challenges,we propose a dynamic personalized recommendation model:***,we first embed product information and attribute information into a unified data ***,we exploit long short-term memory(lsTM)networks to characterize sequential behavior over multiple time periods and seize evolving interests by hierarchical lSTM ***,similarity values between users are measured through pairwise interest features,and personalized recommendation lists are generated.A series of experiments reveal the superiority of the proposed method compared withotheradvanced methods.

关键词： personalized recommendations evolving interests embedding lsTM networks

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lSTM Network-Based Adaptation Approach for Dynamic Integration in Intelligent End-Edge-Cloud Systems

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Tsinghua Science and Technology 2024年第4期29卷 1219-1231页

作者： xuan Yang James A.Esquivel Graduate School Angeles University FoundationAngeles City 2009Philippinesand also with Shandong Provincial University Laboratory for Protected HorticultureWeifang University of Science and TechnologyWeifang 262700China Graduate School Angeles University FoundationAngeles City 2009Philippines

Edge computing, which migrates compute-intensive tasks to run on the storage resources of edge devices, efficiently reduces data transmission loss and protects data privacy. However, due to limited computing resources and storage capacity, edge devices fail to support real-time streaming data query and processing. To address this challenge, first, we propose a long Short-Term Memory (lSTM) network-based adaptive approach in the intelligent end-edge-cloud system. Specifically, we maximize the Quality of Experience (QoE) of users by automatically adapting their resource requirements to the storage capacity of edge devices through an event mechanism. Second, to reduce the uncertainty and non-complete adaption of the edge device towards the user’s requirements, we use the lSTM network to analyze the storage capacity of the edge device in real time. Finally, the storage features of the edge devices are aggregated to the cloud to re-evaluate the comprehensive capability of the edge devices and ensure the fast response of the user devices during the dynamic adaptation matching process. A series of experimental results show that the proposed approach has superior performance compared with traditional centralized and matrix decomposition based approaches.

关键词： quality of experience data query end-edge-cloud long Short-Term Memory(lSTM)networks

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Synthesis and characterization of three new solid polyoxometalates based on Wells-Dawson-derived sandwich-type polyanions [Co_(4)(H_(2)O)_(2)(P_(2)W_(15)O_(56))_(2)]^(16-)

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第3期25卷 268-274页

作者： Jjijie YE xuan XU Chuande WU Department of Chemistry Zhejiang UniversityHangzhou 310058China

Three polyoxometalate-based hybrid coordination materials,[Co_(8)(H_(2)O)_(34)(pz)_(2){Co_(4)(H_(2)O)_(2)P_(4)W_(30)O_(112)}]·16H_(2)O(compound 1),[H_(3)O]_(4)[Co_(6)(H_(2)O)_(22)(pz)_(2){Co_(4)(H_(2)O)_(2)P_(4)W_(30)O_(112)}]·21H_(2)(compound 2),and[H_(3)O]_(4)[Co_(6)(H_(2)O)_(22){Co_(4)(H_(2)O)_(2)P_(4)W_(30)O_(112)}]·29H_(2)O(compound 3)(pz-pyrazine),were built from the linkage of[Co_(4)(H_(2)O)_(2)(P_(2)W_(15)O_(56)_(2)]^(16-)-(abbreviated as{Co_(4)P_(4)W_(30})polyanions and pz and/or cobalt(II)*** compounds 1 and 2 consisted of the same components,their lamellar networks were quite *** inorganic lamellar network in compound 3 was constructed by connecting{Co_(4)P_(4)W_(30)}units with cobalt(I)*** work demonstrates that the coordination modes of{Co_(4)P_(4)W_(30)}are very sensitive to synthesis conditions,while the ring-belt tetrametals are easily substituted by different transition metal cations under mild reaction conditions.

关键词： Cobalt Crystal structure Cyclic voltammetry Hybrid Polyoxometalate

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Modified constitutive models for Inconel 718 considering current density and temperature in electrically assisted forming process

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Chinese Journal of Aeronautics 2024年第2期37卷 524-540页

作者： xuan CUI Rui ZHAO Min WAN School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191China Jiangxi Research Institute of Beihang University Jiangxi 330000China

Electrically Assisted Forming(EAF)technology has obvious advantages in material *** develop an effective constitutive model considering electrical effects,room temperature and electrically assisted quasi-static uniaxial tensile tests were conducted using ultrathin nickelbased superalloy plates with a thickness of 0.25 *** research focused on the two most widely recognized effects:the Joule thermal and the electric athermal *** mechanism of current action can be divided into two scenarios:one considering the Joule thermal effect only,and the other considering both effects *** basic constitutive models,namely the Modified-Hollomon model and the Johnson-Cook(J-C)model,were selected to be optimized through the classification of two different situations,and four optimized constitutive models were *** was found that the J-C model with simultaneous consideration of the Joule thermal effect and electric athermal effect had the best prediction effect by comparing the results of these four ***,the accuracy of the optimization model was verified by finite element simulation of the electrically assisted stretching optimization *** results show that the constitutive model can effectively predict the temperature effect caused by the Joule heat effect and the athermal effect of current on the material.

关键词： Joule heating Elastoplasticity Plastic deformation Superalloys Constitutive models

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