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An IEEE value loop of human-technology collaboration in geospatial information science

Geo-Spatial Information Science 2020年第1期23卷 61-67页

作者： Liqiu meng Chair of Cartography Technical University of MunichMunichGermany

Geosensing and social sensing as two digitalization mainstreams in big data era are increasingly converging toward an integrated system for the creation of semantically enriched digital *** with the rapid developments of AI technologies,this convergence has inevitably brought about a number of *** the one hand,value-adding chains from raw data to products and services are becoming value-adding loops composed of four successive stages–Informing,Enabling,Engaging and Empowering(IEEE).Each stage is a dynamic loop for *** the other hand,the“human versus technology”relationship is upgraded toward a game-changing“human and technology”*** information loop is essentially shaped by the omnipresent reciprocity between humans and technologies as equal partners,co-learners and co-creators of new *** paper gives an analytical review on the mutually changing roles and responsibilities of humans and technologies in the individual stages of the IEEE loop,with the aim to promote a holistic understanding of the state of the art of geospatial information ***,the author elicits a number of challenges facing the interwoven human-technology *** transformation to a growth mind-set may take time to realize and *** works on large-scale semantic data integration are just in the *** experiences of geovisual analytic approaches are far from being systematically ***,the ethical concerns for the handling of semantically enriched digital Earth cover not only the sensitive issues related to privacy violation,copyright infringement,abuse,*** also the questions of how to make technologies as controllable and understandable as possible for humans and how to keep the technological ethos within its constructive sphere of societal influence.

关键词： Geosensing social sensing geovisual analytics semantic web embodied cognition ethics uncertainty

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止血带在导航系统下行全膝关节置换的应用时机选择:一项单中心、回顾性分析

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中国组织工程研究 2025年第15期29卷 3159-3164页

作者：潘浩杨梦刘国强河北省沧州中西医结合医院河北省中西医结合骨关节病研究重点实验室河北省沧州市061000

背景:传统全膝关节置换过程中应用止血带的时机已有明确报道,随着关节相关技术不断精进,导航系统下全膝关节置换应用止血带的时机却鲜有报道。目的:评估采用全程与半程止血带对Brainlab导航系统下行全膝关节置换疗效的影响。方法:回顾... 详细信息

背景:传统全膝关节置换过程中应用止血带的时机已有明确报道,随着关节相关技术不断精进,导航系统下全膝关节置换应用止血带的时机却鲜有报道。目的:评估采用全程与半程止血带对Brainlab导航系统下行全膝关节置换疗效的影响。方法:回顾性分析2022年1-12月在河北省沧州中西医结合医院行导航系统下全膝关节置换患者的资料,选择符合条件的145例患者进行分析,按松开止血带时机分为全程组(n=71)和半程组(n=74)。收集患者一般资料、围术期情况、术后膝关节周围肿胀情况、下肢深静脉血栓发生情况、目测类比评分、美国特种外科医院膝关节评分和关节遗忘评分,评估膝关节功能并进行比较。结果与结论:①与半程组相比,全程组患者的手术时间更短、下肢深静脉血栓发生率更高、术后膝关节肿胀情况更重(P0.05);④提示采用导航系统行全膝关节置换的患者中,半程使用止血带隐匿性失血量少、术后患肢肿胀程度及下肢深静脉血栓发生率低,膝关节功能恢复更快。

关键词：导航系统全膝关节置换止血带膝关节功能关节遗忘评分

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Sulfolane‑Based Flame‑Retardant Electrolyte for High‑Voltage Sodium‑Ion Batteries

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Nano-Micro Letters 2025年第2期17卷 498-516页

作者： Xuanlong He Jie Peng Qingyun Lin meng Li Weibin Chen Pei Liu Tao Huang Zhencheng Huang Yuying Liu Jiaojiao Deng Shenghua Ye Xuming Yang Xiangzhong Ren Xiaoping Ouyang Jianhong Liu Biwei Xiao Jiangtao Hu Qianling Zhang Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Center of Electron Microscopy State Key Laboratory of Silicon and Advanced Semiconductor MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China GRINM(Guangdong)Research Institute for Advanced Materials and Technology FoshanGuangdong 528051People’s Republic of China College of Energy Engineering Zhejiang UniversityHangzhouZhejiang 310027People’s Republic of China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105People’s Republic of China Shenzhen Eigen-Equation Graphene Technology Co.Ltd Shenzhen 518000People’s Republic of China

Sodium-ion batteries hold great promise as next-generation energy storage ***,the high instability of the electrode/electrolyte interphase during cycling has seriously hindered the development of *** particular,an unstable cathode–electrolyte interphase(CEI)leads to successive electrolyte side reactions,transition metal leaching and rapid capacity decay,which tends to be exacerbated under high-voltage ***,constructing dense and stable CEIs are crucial for high-performance *** work reports localized high-concentration electrolyte by incorporating a highly oxidation-resistant sulfolane solvent with non-solvent diluent 1H,1H,5H-octafluoropentyl-1,1,2,2-tetrafluoroethyl ether,which exhibited excellent oxidative stability and was able to form thin,dense and homogeneous *** excellent CEI enabled the O3-type layered oxide cathode NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)(NaNMF)to achieve stable cycling,with a capacity retention of 79.48%after 300 cycles at 1 C and 81.15%after 400 cycles at 2 C with a high charging voltage of 4.2 *** addition,its nonflammable nature enhances the safety of *** work provides a viable pathway for the application of sulfolane-based electrolytes on SIBs and the design of next-generation high-voltage electrolytes.

关键词： Sodium-ion batteries Sulfolane-based electrolyte High voltage Layered oxide cathode Flame retardant

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脂质转移蛋白SiLTP1基因参与谷子耐盐响应初探

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作物学报 2025年第1期51卷 58-67页

作者：孟凡花刘敏沈傲刘炜山东省农业科学院农作物种质资源研究所山东济南250100 上海应用技术大学生态技术与工程学院上海201418

土壤盐渍化严重制约农业生产发展,通过提高植物耐盐性进行盐碱地综合利用,对于保障粮食安全,提升农业生产效率具有重要意义。脂质转移蛋白是一类在高等植物中广泛存在的小分子蛋白质,能够参与植株生长、信号转导以及多种生物和非生物胁... 详细信息

土壤盐渍化严重制约农业生产发展,通过提高植物耐盐性进行盐碱地综合利用,对于保障粮食安全,提升农业生产效率具有重要意义。脂质转移蛋白是一类在高等植物中广泛存在的小分子蛋白质,能够参与植株生长、信号转导以及多种生物和非生物胁迫过程。前期本课题组克隆到一个谷子中编码脂质转移蛋白的基因SiLTP1,本研究通过构建其原核表达载体和植物双元过表达载体,获得了该基因的原核表达蛋白及同源转化过表达阳性植株,经进一步筛选获得4个纯合株系。体外耐盐性试验显示, SiLTP1的原核表达蛋白具有一定耐盐性;转基因植株苗期耐盐生理指标测定显示,SiLTP1过表达植株在遭受盐胁迫时,植株体内MDA积累减少,抗氧化酶含量升高,可积累更少的过氧化氢,从而降低胁迫对植株的氧化损伤,显示基因过表达植株具有更好的耐盐性。本研究结果初步揭示, SiLTP1可正向调控谷子的耐盐性,其在谷子耐盐抗逆方面具有潜在功能,为耐盐谷子品种改良及新品种培育提供了理论基础和候选基因资源。

关键词：脂质转移蛋白 SiLTP1 盐胁迫谷子耐盐响应

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Species-specific and generalized allometric biomass models for eight Fagaceae species in the understory of evergreen broadleaved forests in subtropical China

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Journal of Forestry Research 2024年第4期35卷 156-170页

作者： Shengwang meng Qianyanzhou Ecological Research Station Key Laboratory of Ecosystem Network Observation and ModelingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101People’s Republic of China

Quantifying the biomass of saplings in the regeneration component is critical for understanding biogeochemical processes of forest ***,accurate allometric equations have yet to be developed in sufficient *** develop species-specific and generalized allometric equations,154 saplings of eight Fagaceae tree species in subtropical China’s evergreen broadleaved forests were *** dendrometric variables,root collar diameter(d),height(h),and crown area(ca)were applied in the model by the weighted nonlinear seemingly unrelated regression *** only d as an input variable,the species-specific and generalized allometric equations estimated the aboveground biomass reasonably,with R _(adj)^(2) values generally>*** h and/or ca improved the fitting of some biomass components to a certain *** equations showed a relatively large coefficient of variation but comparable bias to species-specific *** in the absence of species-specific equations at a given location are generalized equations for mixed species *** developed regression equations can be used to accurately calculate the aboveground biomass of understory Fagaceae regeneration trees in China’s subtropical evergreen broadleaved forests.

关键词： Allometry Aboveground biomass Additivity Regeneration Subtropical China

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De Lellis-Topping type inequalities on smooth metric measure spaces

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Frontiers of Mathematics in China 2018年第1期13卷 147-160页

作者： meng meng Shijin ZHANG School of Mathematics and Systems Science Beihang University Beijing 100191 China

We obtain some De Lellis-Topping type inequalities on the smootla metric measure spaces, some of them are as generalization of De Lellis-Topping type inequality that was proved by X. Cheng [Ann. Global Anal. Geom., 20... 详细信息

关键词： De Lellis-Topping type inequality Bakry-Emery Ricci curvature,smooth metric measure space

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从五大臣出洋看晚清小说中的“西游”想象

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南都学坛 2025年第1期45卷 55-61页

作者：许萌李忠南阳师范学院文学院河南南阳473061 洛阳师范学院文学院河南洛阳471000

1906年至1911年间,晚清小说家对五大臣几乎清一色地作西游化、妖魔化等艺术处理,这是公使形象书写史上的别样呈现。晚清小说对五大臣形象的刻画,妙趣横生且极具寓言化特色,整体追求内在的“荒诞”与“怪、奇、丑”等审美观念,这与立宪... 详细信息

1906年至1911年间,晚清小说家对五大臣几乎清一色地作西游化、妖魔化等艺术处理,这是公使形象书写史上的别样呈现。晚清小说对五大臣形象的刻画,妙趣横生且极具寓言化特色,整体追求内在的“荒诞”与“怪、奇、丑”等审美观念,这与立宪幻梦破灭后形成的巨大落差不无关系。小说家普遍对之进行充满丑恶的描写并非偶然,正反映了彼时国民迫切打破封建专制束缚的心声。深究五大臣被晚清小说家塑造为“跳梁丑角”,乃至不断被妖魔化的成因,不仅在于日益高涨的革命风潮及其不可逆转的历史趋向,也在于报刊媒介对其的持续关注与负面报道。五大臣的文学形象丰富了中国近代文学小说人物的多元构成,也是百余年来我们探寻民族复兴之路的一个缩影,彰显了中国人走向现代化的曲折历程。

关键词：清末立宪运动考察宪政五大臣 “西游”叙事革命风潮报刊媒介

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基于多关系图注意力网络的社交机器人检测

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计算机科学 2025年第1期52卷 298-306页

作者：孟令君陈鸿昶王庚润郑州大学网络空间安全学院郑州450003 信息工程大学国家数字交换系统工程技术研究中心郑州450003

现阶段社交机器人已经广泛存在于社交平台,社交机器人的存在使得网络上的舆论环境可以被人为操纵,这样不仅损害了绿色和谐的网络环境,同时也导致人们正常的网络生活受到极大影响。现有的检测方法可以分为基于特征、基于文本和基于图的方... 详细信息

现阶段社交机器人已经广泛存在于社交平台,社交机器人的存在使得网络上的舆论环境可以被人为操纵,这样不仅损害了绿色和谐的网络环境,同时也导致人们正常的网络生活受到极大影响。现有的检测方法可以分为基于特征、基于文本和基于图的方法,其中基于图数据的检测方法大多忽略了图中关系的异质性,并且由于图神经网络存在过渡平滑现象而不能进行深度检测。针对这一问题,提出基于多关系图注意力网络的社交机器人检测方法,在训练时首先将不同关系下的子图抽取出来,然后对子图中的节点采用注意力机制进行聚合,在不同关系下进行节点表示学习并得到节点表示,最后利用通道注意力融合不同关系下的同一节点得到节点表示;同时采用基于LSTM注意力的后连接操作让节点可以自适应地选择邻域进行聚合,以此来缓解过度平滑现象。在Cresci15,Twibot20和MGTAB这3个数据集上的实验结果表明,与11个模型中评价指标的最优值相比,该模型的准确率分别提升了0.47%,1.19%和0.38%,验证了多关系图注意力网络进行社交机器人检测的有效性。

关键词：异质图图注意力节点表示学习 LSTM注意力社交机器人

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Characterizations on the instantaneously formed Ni-containing intermetallics in magnesium alloys

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Journal of Magnesium and Alloys 2023年第8期11卷 2991-2998页

作者： Shuhui Lv Qiang Yang Fanzhi meng Jian meng School of Materials Science and Engineering Changchun University of Science and Technology 130022PR China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022PR China

Instantaneous reactions of Al,Mn,Zn,Zr and Y with Ni by mixing the prepared Mg-8Al-0.4Mn,Mg-6Zn-2Y-0.5Zr and Mg-0.6Ni melts were investigated in this work to reveal the underlying mechanisms of their effects on the removal of Ni *** results indicate three Ni-containing intermetallics,namely Al_(4)NiY,Al_(4)Ni(Y,Zr)and Al_(31)Ni_(2)Mn_(6).The former two phases present lath-like and have a relatively larger size(>20μm in length)than the latest one which is granular with the diameter of∼120 *** illustrates that Al and Y(/Zr)can efficiently remove Ni by forming Al_(4)NiY or Al_(4)Ni(Y,Zr)which would precipitate to the bottom of the ***,adding Y into Mg-Al based alloys can simultaneously remove Fe and Ni,which contributes their excellent corrosion ***,this paper proposes two methods helped to efficiently remove Ni for both Mg-Al based alloys and Al-free Mg alloys,and both of them are also benefit to improve alloys’strength.

关键词： Magnesium alloys Intermetallics Nickel Transmission electron microscopy(TEM) Impurity

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A compressing and saving method for structured grid data based on block construction

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Chinese Journal of Aeronautics 2022年第6期35卷 146-155页

作者： Yan SUN Ying ZHAO Dehong meng meng JIANG State Key Laboratory of Aerodynamics China Aerodynamics Research and Development CenterMianyang 621000China Computational Aerodynamics Institute China Aerodynamics Research and Development CenterMianyang 621000China

The increasing grid data in CFD simulation has brought some new difficulties and challenges,such as high storage cost,low transmission *** order to overcome these problems,a novel method for compressing and saving the structured grid are *** the present method,the geometric coordinates of the six logical domains of one grid block is saved instead of all grid vertex coordinates to reduce the size of the structured grid file when the grid is *** all grid vertex coordinates are recovered from the compressed data with the use of the transfinite interpolation algorithm when the grid is ***,single-block grid cases with different edge vertexes are tested to investigate the compression *** test results show that a higher compression ratio will be obtained on a larger ***,further theoretical analysis is carried out to investigate the effects of parameters on grid *** analysis on single-block grid compression shows that the compression ratio is proportionate to the cubic root of the number of total *** highest compression ratio of single-block grid is obtained when the numbers of vertexes in three logical directions are *** analysis on multi-block grid compression shows that a higher compression ratio will be obtained when a larger difference of total vertexes number exists among the grid ***,multi-blockgrids of two industrial aircraft configurations are compressed to validate the *** compression results demonstrate that the present method has an excellent ability on structured grid *** a million-vertex structured grid,more than 80 percent disk space can be saved after compression.

关键词： CFD Compression Compression ratio Structured grid Transfinite interpolation

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