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一种面向SDN控制平面的拓扑路由优化算法

工业控制计算机 2024年第1期37卷 69-71,75页

作者：李行健江苏自动化研究所江苏连云港222061

针对大型数据中心网络多控制器场景下不同的部署方式和控制路径对网络能耗的影响,解决分布式集群带来的负载不均衡问题。提出节能路由和控制器之间负载均衡的双目标优化,研究一种面向SDN控制器平面的拓扑路由优化算法,可以优化网络流选... 详细信息

针对大型数据中心网络多控制器场景下不同的部署方式和控制路径对网络能耗的影响,解决分布式集群带来的负载不均衡问题。提出节能路由和控制器之间负载均衡的双目标优化,研究一种面向SDN控制器平面的拓扑路由优化算法,可以优化网络流选择数据路径,并为激活的交换机选择控制器和控制路径,实现节能和优化控制平面负载均衡性能。利用DQN搜索学习能力和强化学习的决策能力,仅训练部分状态即可得到最优路径,得出需要休眠的交换机和端口,从而确定节能网络拓扑,有效地降低网络能耗,同时实现控制平面负载均衡的效果。应用DQN算法来求解节能数据路径和控制路径,最后通过实验验证了所提算法的性能。

关键词：软件定义网络高能耗路由拓扑路由 DQN

基于广义S变换和并联神经网络的结构损伤识别研究

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青岛理工大学学报 2024年第1期45卷 26-35页

作者：李行健吕建达赵凌云刁延松青岛理工大学土木工程学院青岛266525

目前在利用CNN网络提取特征的结构损伤识别研究中,仅仅利用1D-CNN和2D-CNN提取的特征进行损伤识别存在准确率低、识别效率不高等问题。提出了一种基于广义S变换和并联神经网络的结构损伤识别方法。为了丰富输入信号的特征维度,利用广义... 详细信息

目前在利用CNN网络提取特征的结构损伤识别研究中,仅仅利用1D-CNN和2D-CNN提取的特征进行损伤识别存在准确率低、识别效率不高等问题。提出了一种基于广义S变换和并联神经网络的结构损伤识别方法。为了丰富输入信号的特征维度,利用广义S变换将滤波后的信号转化成时频图,并同时将一维加速度响应信号和二维时频图分别输入1D-CNN和2D-CNN中进行时域和时频域特征提取,并在汇聚层进行特征拼接,然后通过FC层和Softmax层对损伤识别结果进行分类。利用IASC-ASCE SHM Benchmark结构第二阶段试验数据对所提出的并联网络模型进行验证,结果表明,所提出的网络模型与其他同类方法相比具有更高的识别精度和识别效率。

关键词：损伤识别广义S变换卷积神经网络时频分析特征融合

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基于模糊分析法道桥工程中桥桩基的施工安全评价研究

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中国高新科技 2024年第9期 125-127页

作者：李兴剑王利刚张建桥冯张伟云南建设基础设施投资股份有限公司云南昆明650500 云南省建设投资控股集团有限公司云南昆明650501

路桥工程中桥桩基施工安全是工程管理的重要组成部分,现阶段对其进行安全评价多采用经验法。文章利用模糊分析的方式对其进行定量分析,有助于对安全管理体系进行有效评价,从而找到确定的安全隐患,为保障施工质量与施工安全提供重要基础。

关键词：模糊分析法桥桩基施工安全评价

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脱酸技术在高炉煤气水解脱硫工艺中的应用

山东化工 2024年第10期53卷 205-207,210页

作者：王海洋李辉周雄李林航李兴建王利勇章先刚武汉科林化工集团有限公司湖北武汉430223

根据现有的前端高炉煤气水解脱硫工艺中存在水解使用寿命低的问题,提出了在高炉煤气布袋除尘前进行脱酸处理。介绍了两种脱酸处理工艺:1)5%的氢氧化钠溶液经泵加压后通过喷枪喷射在布袋除尘前管道;2)液态有机胺溶液在汽化装置进行汽化,... 详细信息

根据现有的前端高炉煤气水解脱硫工艺中存在水解使用寿命低的问题,提出了在高炉煤气布袋除尘前进行脱酸处理。介绍了两种脱酸处理工艺:1)5%的氢氧化钠溶液经泵加压后通过喷枪喷射在布袋除尘前管道;2)液态有机胺溶液在汽化装置进行汽化,汽化后的气体喷射在布袋除尘前管道,两种脱酸工艺均可以将高炉煤气中的大部分酸性物质进行脱除,酸性脱除率>90%。工业应用表明,脱酸工艺对布袋除尘器出灰未受影响,工艺运行成本低,装置运行稳定,占地面积小,延长了水解催化剂的使用寿命,具有广阔的应用前景。

关键词：脱酸高炉煤气水解脱硫应用

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Main controlling factors and exploration enlightenment of aluminous rock series gas reservoirs in Ordos Basin,NW China

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Petroleum Exploration and Development 2024年第3期51卷 621-633页

作者： ZHANG Lei CAO Qian ZHANG Caili ZHANG Jianwu WEI Jiayi li Han WANG xingjian PAN Xing YAN Ting QUAN Haiqi Research Institute of Exploration and Development PetroChina Changqing Oilfield CompanyXi’an 710018China National Engineering Laboratory for Exploration and Development of Low-Permeability Oil&Gas Fields Xi’an 710018China The National Key Laboratory of Oil and Gas Reservoir Geology and Exploration Chengdu 610095China

Based on the data of outcrop,core,logging,gas testing,and experiments,the natural gas accumulation and aluminous rock mineralization integrated research was adopted to analyze the controlling factors of aluminous rock series effective reservoirs in the Ordos Basin,NW China,as well as the configuration of coal-measure source rocks and aluminous rock series reservoirs.A natural gas accumulation model was constructed to evaluate the gas exploration potential of aluminous rock series under coal seam in the *** effective reservoirs of aluminous rock series in the Ordos Basin are composed of honeycomb-shaped bauxites with porous residual pisolitic and detrital structures,with the diasporite content of greater than 80%and dissolved pores as the main storage *** bauxite reservoirs are formed under a model that planation controls the material supply,karst paleogeomorphology controls diagenesis,and land surface leaching improves reservoir *** hot humid climate and sea level changes in the Late Carboniferous–Early Permian dominated the development of a typical coal-aluminum-iron three-stage stratigraphic *** natural gas generated by the extensive hydrocarbon generation of coal-measure source rocks was accumulated in aluminous rock series under the coal seam,indicating a model of hydrocarbon accumulation under the *** the Upper Carboniferous–Lower Permian,the relatively low-lying area on the edge of an ancient land or island in the North China landmass was *** gas reservoirs of aluminous rock series,which are clustered at multiple points in lenticular shape,are important new natural gas exploration fields with great potential in the Upper Paleozoic of North China Craton.

关键词： Ordos Basin Carboniferous Benxi Formation Permian Taiyuan Formation aluminous rock series coal-aluminum-iron three-stage stratigraphic structure hydrocarbon accumulation under source

自组装核壳纳米微域交联的聚丙烯酸酯基聚合物的制备、性能及形状记忆机理

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高等学校化学学报 2023年第11期44卷 189-198页

作者：李明菲吕佳宁李兴建丁小斌临沂大学材料科学与工程学院临沂276000 中国科学院成都有机化学研究所成都610041

以双键封端的活性Pluronic F127三嵌段共聚物自组装形成的活性核壳纳米胶束作为多功能纳米交联剂,丙烯酸羟乙酯和丙烯酸为共单体,通过紫外光引发交联剂和单体的自由基聚合,制备了自组装核壳纳米微域交联的聚丙烯酸酯基形状记忆聚合物.... 详细信息

以双键封端的活性Pluronic F127三嵌段共聚物自组装形成的活性核壳纳米胶束作为多功能纳米交联剂,丙烯酸羟乙酯和丙烯酸为共单体,通过紫外光引发交联剂和单体的自由基聚合,制备了自组装核壳纳米微域交联的聚丙烯酸酯基形状记忆聚合物.利用差示扫描量热仪、动态热机械分析仪和万能拉力试验机对聚丙烯酸酯基形状记忆聚合物的热性能、动态热机械性能和力学性能进行了表征.结果表明,随着丙烯酸酯单体浓度的降低,其玻璃化转变温度、室温模量、玻璃态模量与橡胶态模量的比值、拉伸强度和断裂伸长率都逐渐降低,表现出兼具高强度和高韧性的特点.对聚丙烯酸酯基形状记忆聚合物的形状固定率、回复率和回复速率进行了定量表征.结果表明,当单体浓度超过1.97 mol/L时,聚丙烯酸酯基形状记忆聚合物展现出优异的形状记忆性能,形状固定率超过97%,回复率超过98%,回复速率超过8.8%/min.最后,通过应力松弛对该形状记忆聚合物体系的形状记忆机理进行了分析.

关键词：形状记忆聚合物聚丙烯酸酯核壳纳米微域形状记忆效应

Vertical ionization energies of halogen anions in solution

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Science China Chemistry 2010年第6期53卷 1316-1321页

作者： CHENG XueMin,ZHU Quan,WANG xingjian,li YunKui & li XiangYuan College of Chemical Engineering,Sichuan University,Chengdu 610065,China College of Chemical Engineering Sichuan University Chengdu China

Based on the constrained equilibrium state theory,the nonequilibrium solvation energy is derived in the framework of the continuum *** formula for spectral shift and vertical ionization energy are deduced for a single sphere cavity with the point charge *** new model is adopted to investigate the vertical ionization for halogen atomic and molecular anions X(X = Cl,Br,I,Cl2,Br2,I2) in aqueous *** to the calculation using the CCSD-t/aug-cc-pVQZ method in vacuum,our final estimated vertical ionization energies in solution are very close to the experimental observations,while the traditional nonequilibrium solvation theory overestimates these vertical ionization energies.

关键词： vertical ionization energy spectral shift constrained equilibrium state

Chaperone-mediated Autophagy Regulates Cell Growth by Targeting SMAD3 in Glioma

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Neuroscience Bulletin 2022年第6期38卷 637-651页

作者： Hanqun liu Yuxuan Yong xingjian li Panghai Ye Kai Tao Guoyou Peng Mingshu Mo Wenyuan Guo Xiang Chen Yangfu Luo Yuwan lin Jiewen Qiu Ziling Zhang liuyan Ding Miaomiao Zhou Xinling Yang lin Lu Qian Yang Pingyi Xu Department of Neurology The First Affliated Hospital of Guangzhou Medical UniversityGuangzhou 510120China Department of Neurosurgery Tangdu HospitalThe Fourth Military Medical UniversityXi'an 710038China Department of Neurology The Second Affliated Hospital of Xinjiang Medical UniversityUrimqi 830054China Department of Experiment Surgery Tangdu HospitalThe Fourth Military Medical UniversityXi'an 710038China

Previous studies suggest that the reduction of SMAD3(mothers against decapentaplegic homolog 3)has a great impact on tumor development,but its exact pathological function remains *** this study,we found that the protein level of SMAD3 was greatly reduced in human-grade IV glioblastoma tissues,in which LAMP2A(lysosome-associated membrane protein type 2A)was significantly ***2A is a key ratelimiting protein of chaperone-mediated autophagy(CMA),a lysosome pathway of protein degradation that is activated in *** carefully analyzed the amino-acid sequence of SMAD3 and found that it contained a pentapeptide motif biochemically related to KFERQ,which has been proposed to be a targeting sequence for *** vitro,we confirmed that SMAD3 was degraded in either serum-free or KFERQ motif deleted condition,which was regulated by LAMP2A and interacted with HSC70(heat shock cognate 71 kDa protein).Using isolated lysosomes,amino-acid residues 75 and 128 of SMAD3 were found to be of importance for this process,which affected the CMA pathway in which SMAD3 was ***,down-regulating SMAD3 or up-regulating LAMP2A in cultured glioma cells enhanced their proliferation and *** together,these results suggest that excessive activation of CMA regulates glioma cell growth by promoting the degradation of ***,targeting the SMAD3-LAMP2Amediated CMA-lysosome pathway may be a promising approach in anti-cancer therapy.

关键词： Glioma-SMAD3 Chaperone-mediated autophagy Cell growth

A Novel Stator and Rotor Dual PM Flux Modulated Machine

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Chinese Journal of Electrical Engineering 2017年第1期3卷 10-15页

作者： Yunchong Wang W.N.Fu Shuangxia Niu xingjian li The Hong Kong Polytechnic University Hong KongChina Xi’an Jiaotong-liverpool University Xi’an710049China

A novel structure of Veriner permanent magnet(VPM)machine is presented as an effective option for high torque density direct-driven *** key is to locate PMs on both sides of rotor and stator,and design the stator PMs as a cylinder shape,the rotation of which can be controlled by an external driven *** this design,magnetic field in the airgap can be directly regulated by the rotation of stator *** structure and operation principle are introduced and the performance is analyzed with time-stepping finite element method(FEM).Analysis results show that the novel structure has really high torque density and good field weakening performance.

关键词： Directly-driven finite element method flux modulation high torque density permanent magnets