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Hybrid conductive-lithophilic-fluoride triple protection interface engineering:Dendrite-free reverse lithium deposition for high-performance lithium metal batteries

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Journal of Energy Chemistry 2025年第2期101卷 416-428页

作者： huiying li Chang Hong Runming Tao Xiaolang liu Jianxing Wang Jianyu Chen Shuhao Yao Jiazhi Geng Guang Zheng Jiyuan liang Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Optoelectronic Materials & Technology Jianghan University Applied Materials Division Argonne National Laboratory State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications

lithium metal batteries（LMBs） with high energy density are impeded by the instability of solid electrolyte interface（SEI） and the uncontrolled growth of lithium（li） *** mitigate these challenges,optimizing the SEI structure and li deposition behavior is the key to stable *** study novelty proposes a facile synthesis of MgF2/carbon（C） nanocomposite through the mechanochemical reaction between metallic Mg and polytetrafluoroethylene（PTFE） powders,and its modified polypropylene（PP）separator enhances LMB *** in-situ formed highly conductive fluorine-doped C species play a crucial role in facilitating ion/electron transport,thereby accelerating electrochemical kinetics and altering li deposition *** cycling,the in-situ reaction between MgF2and li leads to the formation of liMg alloy,along with a liF-rich SEI layer,which reduces the nucleation overpotential and reinforces the interphase strength,leading to homogeneous li deposition with dendrite-free *** from these merits,the li metal is densely and uniformly deposited on the MgF2/C@PP separator side rather than on the current collector ***,the symmetric cell with MgF2/C@PP exhibits superb li plating/stripping performance over 2800 h at 1 mA cm-2and 2 mA h *** importantly,the assembled li@MgF2/C@PPIliFePO4full cell with a low negative/positive ratio of 3.6delivers an impressive cyclability with 82.7% capacity retention over 1400 cycles at 1 C.

关键词： lithium metal batteries Mechanochemical reaction MgF2 Reverse deposition Separator modification

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基于MRI动脉自旋标记技术研究2型糖尿病脑血流量变化及其与认知功能的关系

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中华放射学杂志 2025年第1期59卷 77-83页

作者：陈羽娜李赛美李卉英邱士军广州中医药大学第一附属医院影像科广州510405 延边中医医院延吉市中医医院脑病科延边133000

目的采用动脉自旋标记(ASL)技术探讨2型糖尿病(T2DM)脑血流量(CBF)的变化及其与认知功能的关系。方法该研究为横断面研究。回顾性分析2017年9月至2019年3月在广州中医药大学第一附属医院就诊的46例T2DM患者(T2DM组)以及57名健康对照组(H... 详细信息

目的采用动脉自旋标记(ASL)技术探讨2型糖尿病(T2DM)脑血流量(CBF)的变化及其与认知功能的关系。方法该研究为横断面研究。回顾性分析2017年9月至2019年3月在广州中医药大学第一附属医院就诊的46例T2DM患者(T2DM组)以及57名健康对照组(HC组)的临床资料(年龄、性别、受教育年限、体重指数)及影像学资料。所有受试者均接受临床认知功能量表评估,包括听觉词语学习测试(AVLT)、连线测试(TMT)、蒙特利尔认知评估量表(MoCA)等,并接受常规全脑斜轴位3D-ASL成像。通过对3D-ASL原始图像进行处理,自动生成CBF伪彩图,提取差异脑区的CBF值。采用独立样本t检验、Mann-Whitney U检验、χ^(2)检验评估T2DM组与HC组临床资料、认知功能量表评分及CBF值的差异。采用偏相关分析方法,控制年龄、性别、受教育年限,分析差异脑区CBF值与认知功能量表评分的相关性。结果T2DM组与HC组的年龄、性别、受教育年限、AVLT评分、TMT评分差异均无统计学意义(P>0.05),体重指数、MoCA评分差异均有统计学意义(Z=-2.16,P=0.031;Z=-3.18,P=0.001)。与HC组相比,T2DM组左侧岛叶CBF显著增加(P<0.001),而右侧梭状回、右侧楔前叶及右侧前额叶CBF显著降低(P<0.001)。偏相关分析显示,T2DM组右侧前额叶CBF值与MoCA评分(r=0.330,P=0.001)呈正相关,右侧梭状回CBF值与MoCA评分(r=0.210,P=0.034)呈正相关。结论T2DM患者在左侧岛叶、右侧梭状回、右侧楔前叶及右侧前额叶CBF存在改变,且右侧前额叶及右侧梭状回CBF降低与认知功能下降有关。

关键词：磁共振成像糖尿病,2型脑血流量认知功能

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Scalably Revealing the Dynamics of Soft Community Structure in Complex Networks

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Journal of Systems Science & Complexity 2016年第4期29卷 1071-1088页

作者： li Huijia li huiying School of Management Science and Engineering Central University of Finance and Economics Department of Automation Tsinghua University

Revealing the dynamics of community structure is of great concern for scientists from many fields. Specifically, how to quantify the dynamic details of soft community structure is a very interesting topic. In this paper, the authors propose a novel framework to study the scalable dynamic behavior of the soft community structure. First, the authors model the Potts dynamics to detect community structure using a "soft" Markov process. Then the soft stability of in a multiscale view is proposed to naturally uncover the local uniform behavior of spin values across multiple hierarchical levels. Finally, a new partition index is developed to detect fuzzy communities based on the stability and the dynamical information. Experiments on the both synthetically generated and real-world networks verify that the framework can be used to uncover hierarchical community structures effectively and efficiently.

关键词： Community detection dynamical behavior Markov process Potts model soft partition.

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Delay-dependent robust passivity control for uncertain time-delay systems

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Journal of Systems Engineering and Electronics 2007年第4期18卷 879-884页

作者： li Guifang li huiying Yang Chengwu Flight Coll. of Nanjing Univ. of Aeronautics and Astronautics Nanjing 210006 P. R. China 810 Division School of Power Engineering Nanjing Univ. of Science and Technology Nanjing 210094 P. R. China

The robust passivity control problem is addressed for a class of uncertain delayed systems with timevarying delay. The parameter uncertainties are norm-bounded. First, the delay-dependent stability sufficient condition is obtained for the nominal system, and then, based-on the former, the delay-dependent robust passivity criteria is provided and the corresponding controller is designed in terms of linear matrix inequalities. Finally, a numerical example is given to demonstrate the validity of the proposed approach.

关键词： passive control time-varying delay delay-dependent parameter uncertainties linear matrix inequality (LMI)

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Understanding coupled coordination relationships between social and ecological functions of urban green spaces

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Geo-Spatial Information Science 2023年第3期26卷 431-445页

作者： Dianfeng liu huiying li Mingli Qiu Yaolin liu School of Resource and Environmental Sciences Wuhan UniversityWuhanChina Key Laboratory of Digital Cartography and Land Information Engineering Ministry of Natural ResourcesWuhan UniversityWuhanChina

Urban Green Spaces(UGSs)can provide social and ecological benefits,and the coordination of these two functions will largely advance human-nature harmony in *** such,we proposed a comprehensive framework to evaluate UGSs multifunctionality,*** coupling coordination relationship of ecological connectivity and spatial accessibility of *** City in Central China was taken as a case study,and multiple ecosystem service values of green space patches and the disordered use of UGSs multifunctionality were *** results demonstrated low-level coupling coordination of UGSs multifunctionality in *** than 70%of UGSs were imbalanced,27.91%of which featured small sizes,low connectivity and *** suggest that planners should optimize UGSs arrangement to improve species reachability,especially for species with dispersal distance less than 4 km,and to create 15-minute community life circles for residents at the same *** findings are expected to support the promotion of UGSs multifunctionality and the balance of urban development and habitat conservation.

关键词： Urban green spaces coupling coordination analysis spatial accessibility ecological connectivity Wuhan city

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DFT/TDDFT investigation on bis-cyclometalated alkynylgold(Ⅲ)complex: Comparison of absorption and emission properties

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Science China Chemistry 2013年第5期56卷 641-647页

作者： li LeiJiao BAI FuQuan ZHANG HongXing li huiying State Key Laboratory of Theoretical and Computational Chemistry Institute of Theoretical Chemistry Jilin University Jilin Institute of Chemical Technology College of Computer Science and Technology Jilin University

absorption and phosphorescent mechanism of three Au（III） complexes, Au（2,5-F2C6H3-C^CAC）（C = C-C6H4N（C6Hs）2 [Au25FPh], Au（3,5-F2C6Ha-CACAC）（C=C-C6H4N（C6Hs）2 [Au35FPh], and Au（3,5-F2C6H3-CAC^C）（C=C-C6H4N（1H- indole）2 [Au35FID], are calculated and compared using density functional theory （DFT） and time-dependent DFT （TDDFT）. The calculated results reveal that enlarging the center CACAC ligand will result in the enhanced LMCT participation. This theoretical contribution allows design of new Au（III） complexes with higher phosphorescence efficiency.

关键词： Gold(Ⅲ) absorption phosphorescence density functional calculations

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Microstructure and properties of in situ synthesized TiB_2+WC reinforced composite coatings

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Rare Metals 2008年第5期27卷 451-456页

作者： li Jun ZHANG huiying li Wenge ZHANG Guangjun School of Materials Engineering Shanghai University of Engineering Science Shanghai 201620 China

Nickel-based composite coatings reinforced by in situ synthesized TiB2 and WC particles were deposited on stainless steel by laser cladding, and their microstmcture and mechanical properties were investigated. The results show that the coatings are mainly composed of 7-Ni cellular dendrites and dispersed spherical/strip/network shaped TiB2 and equiaxial WC particles. The initial WC particles are dissolved to become fine and mostly dispersed within Y-Ni cellular dendrites. The coating prepared at a special laser energy of 0.225 kJ@mm^-2 is uniform, continuous, and free of pores and cracks. With the decrease in special energy density, TiB2 phase changes from fine spherical particles which cluster together to strip shape with different morphologies and further crystallizes to form network structure, and the dispersion zone also gradually changes from intragranular to intergranular phase. The coating possesses a higher microhardness compared with the substrate, and it has a good metallurgical bond with the substrate and excellent cracking resistance.

关键词： laser cladding in situ synthesis composite coating microstructure

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松脂醇二葡萄糖苷激活Wnt/β-catenin信号通路保护成骨细胞

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中国组织工程研究 2025年第2期29卷 339-346页

作者：余鹏孟东方李慧英刘洪飞贺自克河南中医药大学骨伤学院河南省郑州市450000 河南中医药大学第一附属医院河南省郑州市450000 辽宁中医药大学辽宁省沈阳市110847 河南省中医院河南省郑州市450000

背景:松脂醇二葡萄糖苷可以促进骨形成与骨基质的合成,加速骨组织修复,但其对成骨细胞的影响和作用机制仍需进一步探索。目的:基于Wnt/β-catenin信号通路探讨松脂醇二葡萄糖苷对地塞米松干预成骨细胞的影响和作用机制。方法:设置不同... 详细信息

背景:松脂醇二葡萄糖苷可以促进骨形成与骨基质的合成,加速骨组织修复,但其对成骨细胞的影响和作用机制仍需进一步探索。目的:基于Wnt/β-catenin信号通路探讨松脂醇二葡萄糖苷对地塞米松干预成骨细胞的影响和作用机制。方法:设置不同浓度的地塞米松组和松脂醇二葡萄糖苷组对成骨细胞干预24 h,筛选最佳干预浓度;使用地塞米松、松脂醇二葡萄糖苷和Wnt/β-catenin抑制剂XAV-939对成骨细胞进行干预,设置对照组、地塞米松组、抑制剂组、松脂醇二葡萄糖苷组、松脂醇二葡萄糖苷+抑制剂组。CCK-8法检测细胞活性,检测各组细胞碱性磷酸酶和半胱氨酸天冬氨酸蛋白酶3/7酶活性,Annexin V/PI染色与EdU法检测细胞凋亡与增殖情况,Real-Time qPCR检测Wnt3a、β-catenin、c-myc、骨钙素、Ⅰ型胶原蛋白的mRNA表达水平,Western Blot检测Wnt3a、β-catenin、c-myc、骨钙素、Ⅰ型胶原蛋白的蛋白表达水平。结果与结论:①地塞米松和松脂醇二葡萄糖苷干预成骨细胞24 h后,发现浓度为10μmol/L的地塞米松细胞抑制率为实验最佳干预浓度;松脂醇二葡萄糖苷浓度在100μmol/L时,细胞增殖最为明显;②与地塞米松组比较,松脂醇二葡萄糖苷组的碱性磷酸酶活性显著增强(P<0.05),半胱氨酸天冬氨酸蛋白酶3/7酶活性显著降低(P<0.05);Annexin V/PI染色和EdU法细胞增殖检测结果表明,松脂醇二葡萄糖苷可抑制地塞米松干预后成骨细胞的凋亡,促进成骨细胞增殖;③与地塞米松组和抑制剂组比较,松脂醇二葡萄糖苷组和松脂醇二葡萄糖苷+抑制剂组中Wnt3a、β-catenin、c-myc、骨钙素、Ⅰ型胶原蛋白mRNA和蛋白表达水平均显著升高(P<0.05);④结果表明,松脂醇二葡萄糖苷可以抑制地塞米松干预后的成骨细胞凋亡,通过激活Wnt/β-catenin信号通路来保护成骨细胞活性,促进成骨细胞增殖,可能发挥延缓激素性股骨头坏死的作用。

关键词：松脂醇二葡萄糖苷激素性股骨头坏死成骨细胞细胞活性 Wnt/β-catenin信号通路细胞增殖细胞凋亡

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Development of an on-line measurement system for water-soluble organic matter in PM_(2.5) and its application in China

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Journal of Environmental Sciences 2018年第7期30卷 33-40页

作者： huiying li Xiaofeng Huang liming Cao Yuhong Zhai liwu Zeng lingyan He Key Laboratory for Urban Habitat Environmental Science and Technology School of Environment and Energy Peking University Shenzhen Graduate School

Water-soluble organic matter（WSOM） represents a critical fraction of fine particles（PM2.5）in the air, but its changing behaviors and formation mechanisms are not well understood yet, partly due to the lack of fast techniques for the ambient measurements. In this study,a novel system for the on-line measurement of water-soluble components in PM2.5, the particle-into-liquid sampler（PILS）–Nebulizer–aerosol chemical speciation monitor（ACSM）, was developed by combining a PILS, a nebulizer, and an ACSM. High time resolution concentrations of WSOM, sulfate, nitrate, ammonium, and chloride, as well as mass spectra, can be obtained with satisfied quality control results. The system was firstly applied in China for field measurement of WSOM. The mass spectrum of WSOM was found to resemble that of oxygenated organic aerosol, and WSOM agreed well with secondary inorganic ions. All evidence collected in the field campaign demonstrated that WSOM could be a good surrogate of secondary organic aerosol（SOA）. The PILS–Nebulizer–ACSM system can thus be a useful tool for intensive study of WSOM and SOA in PM2.5.

关键词： PM2.5 Water-soluble organic matter Secondary organic matter On-line measurement Mass spectrum

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大数据下技术型初创企业财务风险规避与优化研究

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特区经济 2025年第1期 157-160页

作者：梁皓华黎蕙莹廖均昊北京理工大学珠海学院会计与金融学院广东珠海519000

近年来,随着一系列国家金融供给侧结构性改革,越来越多的技术型企业以其先进的技术壁垒在市场生根发芽,然而却鲜有企业能实现长期高速发展。这其中最主要的制约条件乃是该类企业层出不穷的财务风险问题。而在互联网和信息技术快速发展下... 详细信息

近年来,随着一系列国家金融供给侧结构性改革,越来越多的技术型企业以其先进的技术壁垒在市场生根发芽,然而却鲜有企业能实现长期高速发展。这其中最主要的制约条件乃是该类企业层出不穷的财务风险问题。而在互联网和信息技术快速发展下,又会为该类企业带来一些财务管理机遇和挑战。本文将通过对案例的分析以及对现实经验的深刻解读为该类企业提供参考性的优化路径。

关键词：技术型初创企业财务风险大数据科创板

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