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Dynamic Stability and Fuzzy Reliability Analysis of Toppling Perilous Rock Under Seismic Excitation

Journal of Earth Science 2024年第1期35卷 248-262页

作者： Linfeng Wang Jixu Zhang wanchun Xia Xiaoming Huang Guojin Tan Key Laboratory of Geological Hazards Mitigation for Mountainous Highway and Waterway Chongqing Jiaotong UniversityChongqing 400074China School of Transportation Southeast UniversityNanjing 211189China College of Transportation Jilin UniversityChangchun 130012China

To predict the occurrence of the collapse disaster in toppling perilous rock under the action of bidirectional earthquakes,the dynamic stability and fuzzy reliability calculation method of toppling perilous rock under the action of bidirectional earthquakes is proposed.First,the mass viscoelasticity model is used to simulate two main control surfaces of toppling perilous rock,the seismic dynamic response model and motion equation of toppling perilous rock are established based on the D'Alembert principle,and the Newmark-β method is used to solve the dynamic motion equation.Then,the instability event of toppling perilous rock is considered a fuzzy event,the membership function expression of the stability coefficient of toppling perilous rock is determined based on the fuzzy failure criterion,the calculation equations of the toppling perilous rock dynamic stability coefficient and fuzzy reliability are established,and the fuzzy reliability evaluation method based on the probability distribution of reliability is proposed.Finally,the influence of different superposition modes of seismic excitation on the fuzzy reliability of toppling perilous rock is analyzed.The calculation results of toppling perilous rock in the engineering case show that the fuzzy reliability calculated after considering the fuzzy failure criterion is reduced by 10.73% to 25.66% compared with the classical reliability.Considering the bidirectional seismic excitation,the fuzzy reliability of toppling perilous rock is reduced by 5.46% to 14.89%.Compared with using the acceleration peak time encounter mode to superpose the seismic excitation,the fuzzy reliability of toppling perilous rock is reduced by 3.4% when the maximum action effect time encounter mode is adopted.

关键词： toppling perilous rock bidirectional earthquake fuzzy failure criterion dynamic stability fuzzy reliability Newmark-βmethod probability distribution function

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An Intelligent Privacy Protection Scheme for Efficient Edge Computation Offloading in IoV

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Chinese Journal of Electronics 2024年第4期33卷 910-919页

作者： Liang YAO Xiaolong XU wanchun DOU Muhammad Bilal School of Software Nanjing University of Information Science and Technology State Key Laboratory for Novel Software Technology Nanjing University Department of Computer and Electronics Systems Engineering Hankuk University of Foreign Studies

As a pivotal enabler of intelligent transportation system(ITS), Internet of vehicles(Io V) has aroused extensive attention from academia and industry. The exponential growth of computation-intensive, latency-sensitive,and privacy-aware vehicular applications in Io V result in the transformation from cloud computing to edge computing,which enables tasks to be offloaded to edge nodes(ENs) closer to vehicles for efficient execution. In ITS environment,however, due to dynamic and stochastic computation offloading requests, it is challenging to efficiently orchestrate offloading decisions for application requirements. How to accomplish complex computation offloading of vehicles while ensuring data privacy remains challenging. In this paper, we propose an intelligent computation offloading with privacy protection scheme, named COPP. In particular, an Advanced Encryption Standard-based encryption method is utilized to implement privacy protection. Furthermore, an online offloading scheme is proposed to find optimal offloading policies. Finally, experimental results demonstrate that COPP significantly outperforms benchmark schemes in the performance of both delay and energy consumption.

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XRL-SHAP-Cache:an explainable reinforcement learning approach for intelligent edge service caching in content delivery networks

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Science China(Information Sciences) 2024年第7期67卷 46-71页

作者： Xiaolong XU Fan WU Muhammad BILAL Xiaoyu XIA wanchun DOU Lina YAO Weiyi ZHONG School of Software Nanjing University of Information Science and Technology School of Computing and Communications Lancaster University School of Computing Technologies Royal Melbourne Institute of Technology State Key Laboratory for Novel Software Technology Nanjing University School of Computer Science and Engineering University of New South Wales Data 61 Commonwealth Scientific and Industrial Research Organization School of Computer Science Qufu Normal University

Content delivery networks(CDNs) play a pivotal role in the modern internet infrastructure by enabling efficient content delivery across diverse geographical regions. As an essential component of CDNs, the edge caching scheme directly influences the user experience by determining the caching and eviction of content on edge servers. With the emergence of 5G technology, traditional caching schemes have faced challenges in adapting to increasingly complex and dynamic network environments. Consequently, deep reinforcement learning(DRL) offers a promising solution for intelligent zero-touch network governance. However, the blackbox nature of DRL models poses challenges in understanding and making trusting decisions. In this paper,we propose an explainable reinforcement learning(XRL)-based intelligent edge service caching approach,namely XRL-SHAP-Cache, which combines DRL with an explainable artificial intelligence(XAI) technique for cache management in CDNs. Instead of focusing solely on achieving performance gains, this study introduces a novel paradigm for providing interpretable caching strategies, thereby establishing a foundation for future transparent and trustworthy edge caching solutions. Specifically, a multi-level cache scheduling framework for CDNs was formulated theoretically, with the D3QN-based caching scheme serving as the targeted interpretable model. Subsequently, by integrating Deep-SHAP into our framework, the contribution of each state input feature to the agent's Q-value output was calculated, thereby providing valuable insights into the decision-making process. The proposed XRL-SHAP-Cache approach was evaluated through extensive experiments to demonstrate the behavior of the scheduling agent in the face of different environmental inputs.The results demonstrate its strong explainability under various real-life scenarios while maintaining superior performance compared to traditional caching schemes in terms of cache hit ratio, quality of service(QoS),and space utilization.

关键词： deep reinforcement learning (DRL) explainable artificial intelligence (XAI) multi-level cache content delivery network (CDN) D3QN algorithm Deep-SHAP

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Proof of Aerobically Autoxidized Self-Charge Concept Based on Single Catechol-Enriched Carbon Cathode Material

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Nano-Micro Letters 2024年第4期16卷 1-13页

作者： Junyan Wang wanchun Guo Kesong Tian Xinta Li Xinyu Wang Panhua Li Yu Zhang Bosen Zhang Biao Zhang Shuhu Liu Xueai Li Zhaopeng Xu Junjie Xu Haiyan Wang Yanglong Hou State Key Laboratory of Metastable Materials Science and Technology Hebei Key Laboratory of Heavy Metal Deep‑Remediation in Water and Resource ReuseSchool of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004People’s Republic of China Beijing Key Laboratory for Magnetoelectric Materials and Devices Beijing Innovation Centre for Engineering Science and Advanced TechnologySchool of Materials Science and EngineeringPeking UniversityBeijing 100871People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China Xi’an Rare Metal Materials Institute Co.Ltd Xi’an 710016People’s Republic of China

The self-charging concept has drawn considerable attention due to its excellent ability to achieve environmental energy harvesting,conversion and storage without an external power supply.However,most self-charging designs assembled by multiple energy harvesting,conversion and storage materials increase the energy transfer loss;the environmental energy supply is generally limited by climate and meteorological conditions,hindering the potential application of these selfpowered devices to be available at all times.Based on aerobic autoxidation of catechol,which is similar to the electrochemical oxidation of the catechol groups on the carbon materials under an electrical charge,we proposed an air-breathing chemical self-charge concept based on the aerobic autoxidation of catechol groups on oxygen-enriched carbon materials to ortho-quinone groups.Energy harvesting,conversion and storage functions could be integrated on a single carbon material to avoid the energy transfer loss among the different materials.Moreover,the assembled Cu/oxygen-enriched carbon battery confirmed the feasibility of the air-oxidation self-charging/electrical discharging mechanism for potential applications.This air-breathing chemical self-charge concept could facilitate the exploration of high-efficiency sustainable air self-charging devices.

关键词： Carbon material Oxygen functionality Air oxidation self-charge

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推进商业银行绿色普惠金融融合发展

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中国金融 2024年第2期 15-17页

作者：郑万春中国民生银行

令人瞩目的中央金融工作会议是我国在全面建设社会主义现代化国家开局起步关键时期召开的一次十分重要的会议。会议首次提出建设金融强国的目标,强调坚定不移走中国特色金融发展之路,并从加强党中央对金融工作的集中统一领导、金融为经... 详细信息

令人瞩目的中央金融工作会议是我国在全面建设社会主义现代化国家开局起步关键时期召开的一次十分重要的会议。会议首次提出建设金融强国的目标,强调坚定不移走中国特色金融发展之路,并从加强党中央对金融工作的集中统一领导、金融为经济社会发展提供高质量服务和全面加强金融监管等方面提出具体要求,为新时代新征程推动金融高质量发展提供了根本遵循和行动指南。本刊特别开辟“学习贯彻中央金融工作会议精神”专栏,约请金融业人士深入探讨如何贯彻落实中央金融工作会议精神,做好科技金融等“五篇大文章”,为强国建设、民族复兴伟业提供坚实金融支撑。

关键词：高质量服务普惠金融金融支撑金融监管商业银行强国建设金融业根本遵循

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Tiaobu Feishen therapy inhibits inflammation induced by cigarette smoke extracts in a human monocyte/macrophage cell line

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Journal of Traditional Chinese Medicine 2021年第3期41卷 360-366页

作者： QIN Yanqin CHEN Yulong ZHAO Peng FENG Suxiang WU Yaosong LIU Xuefang DONG Haoran zheng wanchun MAO Xiaoning LI Jiansheng Henan Key Laboratory of Chinese Medicine for Respiratory Disease Henan University of Chinese MedicineZhengzhou 450046China Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan&Education Ministry of China Henan University of Chinese MedicineZhengzhou 450046China

OBJECTIVE: To study the mechanistic effects of Tiaobu Feishen therapy(TBFS) on inflammation induced by cigarette smoke extract(CSE) in a human monocyte/macrophage cell line.METHODS: The human monocyte/macrophage cell line THP-1 was stimulated with 10% CSE in the presence or absence of Bufei Yishen formula(BYF),Bufei Jianpi formula(BJF) and Yiqi Zishen formula(YZF). All formulations contained serum. Pro-inflammatory cytokines were measured in the supernatants using enzyme-linked immunosorbent assay.The activity of STAT3 DNA binding was detected using electrophoretic mobility shift assay and janus kinase/signal transducer and activator of transcription(JAK/STAT) pathway activation was assessed using Western blotting.RESULTS: The results showed that BYF, BJF and YZF treatment strongly decreased the CSE-induced secretion of interleukin(IL)-6, IL-8, tumor necrosis factor-α and matrix metalloproteinase-9 by THP-1 cells. Furthermore, BYF, BJF and YZF treatment attenuated STAT3 DNA binding capacity and JAK2 and STAT3 were shown to be phosphorylated.CONCLUSION: The data revealed that BYF, BJF and YZF effectively inhibited a CSE-induced inflammatory response in THP-1 cells by limiting activation of the JAK2/STAT3 pathway.

关键词： cigarette smoking janus kinase 2 STAT3 transcription factor THP-1 cells matrix metalloproteinases Tiaobu Feishen therapy

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Reform and Outlook of China’s Banking Industry

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China Economic Transition 2018年第4期1卷 69-78页

作者： zheng wanchun China Minsheng Bank

In the past 40 years of reform and opening up,remarkable achievements have been made in China’s economic development.As the blood of the real economy,the reform,innovation and development of the financial sector have effectively supported the development of the real economy with an increasing number of more diversified financial institutions.In recent years,the market condition has been marked with rapidly developed Internet finance,accelerated financial disintermediation and intensified competition between banks.A new era has emerged with advancing reforms in interest and exchange rates,improved macro control with monetary policy and macro-prudential policy as two pillars,and upgraded supervision.In this era,it is vital for the future development of banks to review the past and assess the present.

关键词： finance policy Outlook

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Three Tiaobu Feishen formulae reduces cigarette smoke-induced inflammation in human airway epithelial cells

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Journal of Traditional Chinese Medicine 2020年第3期40卷 386-392页

作者： Dong Haoran Liu Xuefang zheng wanchun Feng Suxiang Li Jiansheng Qin Yanqin Wu Yaosong Chen Yulong Yin Sugai Zhao Peng Henan Key Laboratory of Chinese Medicine for Respiratory Disease Henan University of Chinese MedicineZhengzhou 450046China Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment&Chinese Medicine Development of Henan Province Henan University of Chinese MedicineZhengzhou 450046China

OBJECTIVE: To investigate the therapeutic efficacy of Tiaobu Feishen formulae(TBFS) on cigarette smoke-induced inflammation in vitro using lipopolysaccharide(LPS)-induced and cigarette smoke extract(CSE)-induced NCI-H292 cells.METHODS: We evaluated the inhibitory effects of Bufei Jianpi formula(BJF), Bufei Yishen formula(BYF), and Yiqi Zishen formula(YZF) on the expressions of inflammatory cytokines including tumor necrosis factor(TNF)-α and interleukin(IL)-8, matrix metalloproteinase(MMP)-9, tissue inhibitor of matrix metalloprotease(TIMP)-1, and superoxide dismutase(SOD) in H292 cells stimulated with LPS or CSE. Their related transcription factors and signaling pathways were also analyzed.RESULTS: BJF, BYF, and YZF significantly inhibited the LPS-or CSE-induced expressions of TNF-α, IL-8,MMP-9, TIMP-1, and SOD in H292 cells, and suppressed the activation of transcription factors including nuclear transcription factor(NF)-κB, activator protein(AP)-1, and signal transducers and activators of transcription(STAT) 3 and their corresponding pathways, including NF-κB, mitogen-activated protein kinase(MAPK), STAT3, and peroxisome proliferator-activated receptor(PPAR).CONCLUSION: BJF, BYF, and YZF effectively suppressed inflammatory responses, protease-antiprotease imbalance, and oxidative stress induced by LPS and CSE, an effect that was closely associated with the inhibition of the NF-κB, MAPK, STAT3, and PPAR pathways.

关键词： Pulmonary disease chronic obstructive Lipopolysaccharides Cigarette smoking Inflammation Epithelial cells Tiaobu Feishen formulae

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地方本科高校学前教育专业校外实践教学基地建设策略

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长春教育学院学报 2024年第1期40卷 75-80页

作者：王婉纯陕西学前师范学院幼儿教育学院陕西西安710100

地方本科院校学前教育专业要注重实践能力的培养,加强校外实践基地建设。调查发现,当前学前教育专业校外实践基地数量充足,能够满足学生的实践需要,但管理制度不健全,见习实习方案偏重“教育”导向,高校与实践基地缺少有效互动,指导教... 详细信息

地方本科院校学前教育专业要注重实践能力的培养,加强校外实践基地建设。调查发现,当前学前教育专业校外实践基地数量充足,能够满足学生的实践需要,但管理制度不健全,见习实习方案偏重“教育”导向,高校与实践基地缺少有效互动,指导教师职责不明,缺乏有效的考核评价体系。为了更好地提升实践教学水平,校外实践基地在建设中应强化“四位一体”协同意识,健全教学制度、明确实训目标、重视实习指导、规范质量监控,双方进一步开展深度合作,共建“基地+平台”校内外一体化育人机制。

关键词：学前教育专业本科校外实践基地

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Three Tiaobu Feishen therapies protect human alveolar epithelial cells against cigarette smoking and tumor necrosis factor-mlear factor-kappa B pathwayα-induced inflamation by nuc

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Journal of Traditional Chinese Medicine 2019年第1期39卷 45-49页

作者： Chen Yulong Wu Yaosong Li Jiansheng Feng Suxiang Hao Lili Liu Xuefang zheng wanchun Dong Haoran Qin Yanqin Yin Sugai Zhao Peng Henan Key Laboratory of Chinese Medicine for Respiratory Disease Henan University of Chinese MedicineZhengzhou 450046China Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment&Chinese Medicine Development of Henan Province Henan University of Chinese MedicineZhengzhou 450046China

OBJECTIVE: To investigate the efficacy of Tiaobu Feishen formulae(TBFS), including Bufei Jianpi formula(BJF), Bufei Yishen formula(BYF), and Yiqi Zishen formula(YZF), on inflammatory response, protease-anti-protease imbalance and collagen deposition in rats.METHODS: In present work, we used an in vitro model of cigarette smoking extract(CSE)-and tumor necrosis factor-α(TNF-α)-induced A549 cellsto examine the efficacy of BJF, BYF and YZF on the production of inflammatory cytokines, including TNF-α and interleukin(IL)-8, IL-6, matrix metalloproteinases(MMP)-9, and IL-10 in CSE or TNF-ls. And their related transcripα-induced A549 celtion factors and signaling pathway were also analyzed.RESULTS: The results showed that BJF, BYF and YZF could significantly decrease the expression levels of the pro-inflammatory cytokines induced by CSE or TNF-α. Furthermore, BJF, BYF and YZF could suppress CSE-or TNF-α-induced activation of nuclear factor-kappa B(NF-κB) transcription factors and its corresponding pathways. Taken together, these data implied that BJF, BYF and YZF effectively inhibited CSE-or TNF-α-induced inflammatory response in alveolar epithelial cell, which was due to their inhibition effect on NF-κB pathways.CONCLUSION: Our findings suggest that the Tiaobu Feishen therapies may protect human alveolar epithelial cells against cigarette smoking and TNF-α-induced inflammation. NF-κB pathway may involve in the actions.

关键词： Chinese medical formula Cigarette smoking Tumor necrosis factor-alpha A549 cells

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