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Theoretical Framework for a Polymorphic Network Environment

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Engineering 2024年第8期39卷 222-234页

作者： Jiangxing Wu Junfei li Penghao Sun Yuxiang Hu ziyong li PLA Strategic Support Force Information Engineering University Zhengzhou 450000China

The question of whether an ideal network exists with global scalability in its full life cycle has always been a first-principles problem in the research of network systems and *** far,it has not been possible to scientifically practice the design criteria of an ideal network in a unimorphic network system,making it difficult to adapt to known services with clear application scenarios while supporting the ever-growing future services with unexpected ***,we theoretically prove that no unimorphic network system can simultaneously meet the scalability requirement in a full cycle in three dimensions—the service-level agreement(S),multiplexity(M),and variousness(V)—which we name as the“impossible SMV triangle”*** is only by transforming the current network development paradigm that the contradiction between global scalability and a unified network infrastructure can be resolved from the perspectives of thinking,methodology,and practice *** this paper,we propose a theoretical framework called the polymorphic network environment(PNE),the first principle of which is to separate or decouple application network systems from the infrastructure environment and,under the given resource conditions,use core technologies such as the elementization of network baselines,the dynamic aggregation of resources,and collaborative software and hardware arrangements to generate the capability of the“network of networks.”This makes it possible to construct an ideal network system that is designed for change and capable of symbiosis and coexistence with the generative network morpha in the spatiotemporal *** environment test for principle verification shows that the generated representative application network modalities can not only coexist without mutual influence but also independently match well-defined multimedia services or custom services under the constraints of technical and economic indicators.

关键词： Polymorphic network environment Impossible triangle Network development paradigm Future network

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堆石混凝土堤坝渗流的分析及加固研究

四川水利 2024年第5期45卷 144-149页

作者：李自勇山东天鑫土木工程股份有限公司山东聊城252000

为了有效认识堆石-自密实混凝土坝的渗透特性,在室内试验中通过制作小尺寸抗渗透试件,分析堆石混凝土整体抗渗性能及堆石混凝土界面抗渗性能,为堆石混凝土坝的渗漏加固提供指导性方法。研究结果表明,块石的尺寸对坝体的渗流路径和渗透... 详细信息

为了有效认识堆石-自密实混凝土坝的渗透特性,在室内试验中通过制作小尺寸抗渗透试件,分析堆石混凝土整体抗渗性能及堆石混凝土界面抗渗性能,为堆石混凝土坝的渗漏加固提供指导性方法。研究结果表明,块石的尺寸对坝体的渗流路径和渗透系数起着至关重要的影响,随着块石粒径的增加,堆石混凝土试件渗透系数呈现先下降后增加的变化趋势,大致呈“勺”字形;块石与自密实混凝土之间界面是良好的导水通道,水体极易沿着这个薄弱面发生扩散,块石界面长度减半,渗透系数仅有原值的十分之一;块石含量在20%以内,对堆石混凝土的渗透系数降低影响较大;提出了“自密实混凝土防渗层+膏状灌浆”的防漏加固技术,现场渗漏监测表明,加固完成后坝体的渗流量迅速降低,并维持在低值范围内波动,渗漏量平均值约为0.025 L/s,所提出的防渗加固方案起到了良好的止水和堵漏作用。

关键词：堆石混凝土渗流分析加固分析自密实混凝土室内试验

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水泥搅拌桩在水闸砂土液化地基处理中的应用

山东水利 2024年第6期 23-25页

作者：李自勇山东天鑫土木工程股份有限公司山东聊城252000

水泥搅拌桩作为水利工程地基加固处理的重要手段,能最大限度发挥原状土的力学性能,具有施工简便、造价低、污染少的特点。为保证水泥搅拌桩成桩质量,降低砂土液化地基不均匀沉降对基础的影响,以冠县杨林排水闸砂土液化地基基础处理工程... 详细信息

水泥搅拌桩作为水利工程地基加固处理的重要手段,能最大限度发挥原状土的力学性能,具有施工简便、造价低、污染少的特点。为保证水泥搅拌桩成桩质量,降低砂土液化地基不均匀沉降对基础的影响,以冠县杨林排水闸砂土液化地基基础处理工程为例,结合现场施工状况与地勘情况选定水泥搅拌桩对基础加固。经试验确定水泥搅拌桩最佳水泥含量和水灰比分别为22%和0.5,通过现场荷载试验和数值模拟技术验证水泥搅拌桩处理砂土液化地基效果较好,使地基沉降值减少35.5%,复合地基承载力和沉降量得到改善。为后续水闸砂土液化地基处理提供借鉴。

关键词：杨林排水闸水泥搅拌桩砂土地基地基处理

AI+BIM在水利水电工程施工安全管理中的应用价值研究

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现代工程科技 2024年第9期3卷 81-84页

作者：李自勇山东天鑫土木工程股份有限公司山东聊城252000

水利水电工程项目普遍存在现场施工复杂,施工安全管理难度大,施工安全风险高等情况。为了提升水利水电工程施工安全管理效益,实现水利水电工程项目施工安全管理的智能化发展,从BIM在水利水电工程项目的应用场景、安全管理能效、安全管... 详细信息

水利水电工程项目普遍存在现场施工复杂,施工安全管理难度大,施工安全风险高等情况。为了提升水利水电工程施工安全管理效益,实现水利水电工程项目施工安全管理的智能化发展,从BIM在水利水电工程项目的应用场景、安全管理能效、安全管理模式、施工安全评估等方面分析了AI+BIM在水利水电工程施工安全管理中的应用,剖析了AI+BIM在水利水电工程施工安全管理中的应用价值。研究提出的基于AI+BIM的水利水电工程施工安全管理策略,可实现水利水电项目工程管理的集成化,实时预测现场风险,并降低水利水电施工现场事故发生率。基于AI+BIM水利水电工程施工安全管理可以进一步推动水利水电项目施工安全管理模式创新,推动水利水电工程安全管理智慧化发展,实现水利水电智慧工程的创建。

关键词：水利水电工程施工 AI BIM 智慧工程

透刺法在膝关节骨性关节炎治疗中的沿袭与应用

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中医临床研究 2024年第12期16卷 81-86页

作者：常如春李可李子勇广州中医药大学广东广州528000 北京中医药大学北京100029

鉴古察今,透刺法作为取穴少、针感强、疗效佳、便于传扬于外的中医针法,在传统文化历史长河中流传不息。历朝历代医家以实践为基础继承并发扬透刺法,融入了其所处时代特有的文化哲学思想,丰富了透刺法的具体内涵。作为一种中医传统针刺... 详细信息

鉴古察今,透刺法作为取穴少、针感强、疗效佳、便于传扬于外的中医针法,在传统文化历史长河中流传不息。历朝历代医家以实践为基础继承并发扬透刺法,融入了其所处时代特有的文化哲学思想,丰富了透刺法的具体内涵。作为一种中医传统针刺治疗方式,透刺法以“一针两穴”而闻名,且透刺法在实践中注重激发患者经气,往往产生较强的针感,善于直达病所而有除顽疾、止痹痛之功用,其在膝关节骨性关节炎的治疗中发挥着独特优势。文章拟探究透刺法治疗膝关节骨性关节炎的理论渊源,并以中国知网为文献来源,梳理相关临床文献,以临床实践为基础,展示透刺法现代研究进展,以期揭示透刺法理论的现代科学内涵。透刺法的代代传承中蕴含着各医家治病的角度与思路,我们应吸取历代医家治疗疾病的经验并运用于临床针刺治疗中,在实践中继承并发展透刺法具体内涵,注重与现代医学相结合,不断丰富和发展新时代透刺法具体内涵,以现代医学为手段,探索透刺法的科学依据和临床最优解。总之,透刺法通过针刺效应激活膝关节结构调整,影响细胞凋亡进展,调节力学状态,最终纠正机体紊乱状态,使患者机能恢复而免受痛苦,是治疗膝关节骨性关节炎的优势选择。

关键词：透刺膝关节骨性关节炎膝痹膝

ESMD-Flow: An Intelligent Flow Forwarding Scheme with Endogenous Security Based on Mimic Defense in Space-Air-Ground Integrated Network

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China Communications 2022年第1期19卷 40-51页

作者： ziyong li Yuxiang Hu Di Zhu JiangxingWu Yunjie Gu PLA Strategic Support Force Information Engineering University Zhengzhou 450002China 61660 Unit of PLA Beijing 100089China

The Space-Air-Ground Integrated Network(SAGIN) realizes the integration of space, air,and ground networks, obtaining the global communication ***-Defined Networking(SDN) architecture in SAGIN has become a promising solution to guarantee the Quality of Service(QoS).However, the current routing algorithms mainly focus on the QoS of the service, rarely considering the security requirement of flow. To realize the secure transmission of flows in SAGIN, we propose an intelligent flow forwarding scheme with endogenous security based on Mimic Defense(ESMD-Flow). In this scheme, SDN controller will evaluate the reliability of nodes and links, isolate malicious nodes based on the reliability evaluation value, and adapt multipath routing strategy to ensure that flows are always forwarded along the most reliable multiple paths. In addition, in order to meet the security requirement of flows, we introduce the programming data plane to design a multiprotocol forwarding strategy for realizing the multiprotocol dynamic forwarding of flows. ESMD-Flow can reduce the network attack surface and improve the secure transmission capability of flows by implementing multipath routing and multi-protocol hybrid forwarding mechanism. The extensive simulations demonstrate that ESMD-Flow can significantly improve the average path reliability for routing and increase the difficulty of network eavesdropping while improving the network throughput and reducing the average packet delay.

关键词： space-air-ground integrated network(SAGIN) endogenous security multipath routing multi-protocol forwarding

EARS: Intelligence-Driven Experiential Network Architecture for Automatic Routing in Software-Defined Networking

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China Communications 2020年第2期17卷 149-162页

作者： Yuxiang Hu ziyong li Julong Lan Jiangxing Wu Lan Yao Information Engineering University

Software-Defined Networking(SDN)adapts logically-centralized control by decoupling control plane from data plane and provides the efficient use of network ***,due to the limitation of traditional routing strategies relying on manual configuration,SDN may suffer from link congestion and inefficient bandwidth allocation among flows,which could degrade network performance *** this paper,we propose EARS,an intelligence-driven experiential network architecture for automatic *** adapts deep reinforcement learning(DRL)to simulate the human methods of learning experiential knowledge,employs the closed-loop network control mechanism incorporating with network monitoring technologies to realize the interaction with network *** proposed EARS can learn to make better control decision from its own experience by interacting with network environment and optimize the network intelligently by adjusting services and resources offered based on network requirements and environmental *** the network architecture,we design the network utility function with throughput and delay awareness,differentiate flows based on their size characteristics,and design a DDPGbased automatic routing algorithm as DRL decision brain to find the near-optimal paths for mice and elephant *** validate the network architecture,we implement it on a real network *** simulation results show that EARS significantly improve the network throughput and reduces the average packet delay in comparison with baseline schemes(***,ECMP).

关键词： software-defined networking(SDN) intelligence-driven experiential network deep reinforcement learning(DRL) automatic routing

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高次多项式函数的“平行性”问题

哈尔滨师范大学自然科学学报 2024年第1期40卷 9-14页

作者：董冠文李自勇王彩琴何长林甘肃机电职业技术学院

通过研究二次函数的割线斜率与切线斜率相等即割线与切线相互平行,得到的条件为:该二次函数与割线两交点的横坐标数值的平均值等于该二次函数与切线切点的横坐标数值.进而将二次函数的这种切割线“平行”特性推广到高次多项式函数.采用... 详细信息

通过研究二次函数的割线斜率与切线斜率相等即割线与切线相互平行,得到的条件为:该二次函数与割线两交点的横坐标数值的平均值等于该二次函数与切线切点的横坐标数值.进而将二次函数的这种切割线“平行”特性推广到高次多项式函数.采用数值均差法证明了由二次函数的切割线“平行”特性推广到高次多项式函数后的结论,此结论与高次多项式的最高次数和导数阶数有关.

关键词：割线切线 “平行”特性数值均差法高次多项式函数最高次数

抛物线(二次函数)割线和切线平行性问题的证明与推广

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河北省科学院学报 2024年第2期41卷 1-12页

作者：董冠文李自勇王彩琴何长林甘肃机电职业技术学院甘肃天水741000

介绍了抛物线(二次函数)上割线和切线平行性问题,并用数值均差法证明了抛物线(二次函数)上割线和切线平行性问题的结论,分两次推广了抛物线(二次函数)上割线和切线平行性问题的相关结论。

关键词：抛物线数值均差法割线切线