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Science China Chemistry 2024年第2期67卷 558-567页

作者： Shan-Shan Li Yu-shi Jiang Xue-Ling luo Xuming Ran Yuqiang Li Dong Wu Cheng-Xue Pan Peng-Ju Xia School of Chemistry and Pharmaceutical Sciences Guangxi Normal UniversityGuilin541004China Shanghai Artificial Intelligence Laboratory Shanghai200433China The Institute for Advanced Studies Wuhan UniversityWuhan430064China

We developed a highly selective and efficient multicomponent transformation by utilizing alkynes and olefins/(hetero)arenes through photoinduced energy-transfer *** reaction involves the formation of three distinct chemical bonds,namely C(sp~3)–C(sp~2),C(sp~2)–C(sp~3),and C(sp~3)–N,in a single coordinated *** strategy used a vinyl radical-mediated radical relay approach under mild conditions,exhibiting a broad substrate scope(>70 examples),excellent functional-group tolerance,and remarkable regio-and *** the utilization of a combination of experimental techniques and density functional theory(DFT),we delved deeper into the mechanistic intricacies of this distinctive *** revealed that the selective radical addition to electron-deficient alkynes,rather than olefins,was governed by the inherent reactivity of alkyl *** discovery presented a highly effective approach for the synthesis of stereodefined multisubstituted alkenes.

关键词： alkyne-olefin coupling DFT studies regio-and anti-stereoselectivity multisubstituted alkenes

Interface engineering of Co_(9)S_(8)/SnS heterostructure as a high-performance anode for lithium/sodium-ion batteries

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Rare Metals 2024年第2期43卷 612-623页

作者： Jia luo shi-Li Xiang Dan-Yang Han An Liu João Cunha Gang-Yong Li Zhao-Hui Hou Hong Yin School of Chemistry and Chemical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional MaterialsHunan Institute of Science and TechnologyYueyang414006China Hubei Jiufengshan Laboratory Wuhan430206China International Iberian Nanotechnology Laboratory(INL) Av.Mestre Jose Veiga4715-330BragaPortugal

Transition metal sulfide(TMS)anodes exhibit the characteristics of phase stability and high capacity for lithium/sodium-ion batteries(LIBs/SIBs).However,the TMS anodes often suffer from poor electronic conductivity,low ionic diffusion and large volume expansion during Li/Na-ion intercalation significantly impairing the Li/Na-storage ***,a long chain heterostructure composed of the Co_(9)S_(8) and SnS are first reported,which can generate rich phase interfaces,and small crystal *** unique structure can facilitate the properties of reactivity,conductivity and ionic *** addition,the heterostructure surface is modified by the N-doped carbon(N-DC@(CoSn)S),successfully improving the structural *** synergistic effects of Co_(9)S_(8)/SnS heterostructure and coated carbon layer effectively increase the capacity and cycling *** N-DC@(CoSn)S anode delivers enhanced high specific capacities of 820.6 mAh·g^(−1) at 1.0 A·g^(–1) after 500 cycles for LIBs and 339.2 mAh·g^(–1)at 0.5 A·g^(–1) after 1000 cycles for SIBs,*** work is expected to provide a material design idea for preparing LIBs/SIBs with high capacity and long cycling life.

关键词： Interface engineering Long chain heterostructure High capacity Cycling stability Li Na-ion batteries

新时期国际中文教育本土教师培育及长效机制建构

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民族教育研究 2023年第2期34卷 164-169页

作者：罗世琴中国政法大学人文学院北京100088

推动中华文化更好地走向世界,亟须建成具有较高水平的国际中文教育本土师资。新时期国际中文教育本土教师是适应国际中文教育事业发展需求而培育的职业人才,其培育过程具有高阶性、精准性与时代性特点。高阶性是相对于一般的国际中文学... 详细信息

推动中华文化更好地走向世界,亟须建成具有较高水平的国际中文教育本土师资。新时期国际中文教育本土教师是适应国际中文教育事业发展需求而培育的职业人才,其培育过程具有高阶性、精准性与时代性特点。高阶性是相对于一般的国际中文学习而言,强调更广博深入的知识与科学的认知态度;精准性是在充分考虑诸种差异与个性因素的基础上,开展具有较强针对性和精细化的训练与实践;时代性是指融入当代中国国情,注重国际中文本土教师对中国现代化发展的感知与对代表中国发展主要成就典型案例的了解。建构国际中文本土教师培育长期稳定的有效机制,要开拓中国境内与本土互为补充的培育格局,采用学历教育与短期培训相辅相成的培育模式,用好媒介资源与标准化建设合力打造的培育平台,实施有规模、有计划、有层次的持续培育。

关键词：国际中文教育本土教师长效机制

中西交往的技术:早期来华新教传教士的实地经历与路径考察

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编辑之友 2022年第1期 94-103页

作者：骆世查四川大学文学与新闻学院四川成都610065

中西交往在晚清从京城转向地方,从排斥禁绝转向互动重启,从上层士人交际转向出版印刷传递。由是,文章聚焦19世纪以来中西交往过程中关乎技术路径乃至具体印刷技术的权衡与考量的过程,试图打开中西文明互动中的多重纽结,规避纯粹的政治... 详细信息

中西交往在晚清从京城转向地方,从排斥禁绝转向互动重启,从上层士人交际转向出版印刷传递。由是,文章聚焦19世纪以来中西交往过程中关乎技术路径乃至具体印刷技术的权衡与考量的过程,试图打开中西文明互动中的多重纽结,规避纯粹的政治意涵研判,将中介方式视为影响全球沟通的关键。基于多种公开出版的传教士笔记、日记、书信、回忆录等资料,文章认为,早期来华新教传教士的实地游历不仅为他们同英语世界沟通提供了全新素材,也使他们逐步认识到基于西式活字印刷术的书籍传教乃是中介中西的最佳方式,文章竭力透过多家英文报刊上的意见流通,勾勒这一展示与说服的过程。

关键词：中西交往技术路径印刷技术新教传教士

维普期刊数据库博看期刊

Identification of LPV system using locally weighted technique

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Applied Mathematics(A Journal of Chinese Universities) 2010年第4期25卷 411-419页

作者： ZENG Jiu-sun GAO Chuan-hou luo shi-hua Department of Mathematics Zhejiang University Hangzhou 310027 China School of Management Jiangxi University of Finance and Economics Nanchang 331300 China

The problem of linear parameter varying （LPV） system identification is considered based on the locally weighted technique which provides estimation of the LPV model parameters at each distinct data time point by giving large weights to measurements that are ＂close＂ to the current time point and small weights to measurements ＂far＂ from the current time point. Issues such as choice of distance function, weighting function and bandwidth selection are discussed. The developed method is easy to implement and simulation results illustrate its efficiency.

关键词： Linear parameter varying system locally weighted technique identification.

Molecular mechanisms underlying microglial sensing and phagocytosis in synaptic pruning

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Neural Regeneration Research 2024年第6期19卷 1284-1290页

作者： Anran Huo Jiali Wang Qi Li Mengqi Li Yuwan Qi Qiao Yin Weifeng luo Jijun shi Qifei Cong Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow UniversityInstitute of Neuroscience and Jiangsu Key Laboratory of Neuropsychiatric Diseases Soochow University Department of Neurology and Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow University

Microglia are the main non-neuronal cells in the central nervous system that have important roles in brain development and functional connectivity of neural circuits. In brain physiology, highly dynamic microglial processes are facilitated to sense the surrounding environment and stimuli. Once the brain switches its functional states, microglia are recruited to specific sites to exert their immune functions, including the release of cytokines and phagocytosis of cellular debris. The crosstalk of microglia between neurons, neural stem cells, endothelial cells, oligodendrocytes, and astrocytes contributes to their functions in synapse pruning, neurogenesis, vascularization, myelination, and blood-brain barrier permeability. In this review, we highlight the neuron-derived “find-me,” “eat-me,” and “don’t eat-me” molecular signals that drive microglia in response to changes in neuronal activity for synapse refinement during brain development. This review reveals the molecular mechanism of neuron-microglia interaction in synaptic pruning and presents novel ideas for the synaptic pruning of microglia in disease, thereby providing important clues for discovery of target drugs and development of nervous system disease treatment methods targeting synaptic dysfunction.

关键词： complement immune signals microglia molecular signal synapse elimination synapse formation synapse refinement synaptic pruning

The Limit of Finite Sample Breakdown Point of Tukey’s Halfspace Median for General Data

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Acta Mathematica Sinica,English Series 2018年第9期34卷 1403-1416页

作者： Xiao Hui LIU shi Hua luo Yi Jun ZUO School of Statistics Jiangxi University of Finance and Economics Nanchang 330013 P. R. China Research Center of Applied Statistics Jiangxi University of Finance and Economics Nanchang 330013 P. R. China Department of Statistics and Probability Michigan State University East Lansing MI 48823 USA

Under special conditions on data set and underlying distribution, the limit of finite sample breakdown point of Tukey＇s halfspace median （1） has been obtained in the literature. In this paper, we establish the result under weaker assumptions imposed on underlying distribution （weak smoothness） and on data set （not necessary in general position）. The refined representation of Tukey＇s sample depth regions for data set not necessary in general position is also obtained, as a by-product of our derivation.

关键词： Tukey's halfspace median limit of finite sample breakdown point smooth condition,halfspace symmetry

Large-field objective lens for multi-wavelength microscopy at mesoscale and submicron resolution

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Opto-Electronic Advances 2024年第6期7卷 41-56页

作者： Xin Xu Qin luo Jixiang Wang Yahui Song Hong Ye Xin Zhang Yi He Minxuan Sun Ruobing Zhang Guohua shi School of Biomedical Engineering(Suzhou) Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230026China Jiangsu Key Laboratory of Medical Optics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of ScienceSuzhou 215163China

Conventional microscopes designed for submicron resolution in biological research are hindered by a limited field of view,typically around 1 *** restriction poses a challenge when attempting to simultaneously analyze various parts of a sample,such as different brain *** addition,conventional objective lenses struggle to perform consistently across the required range of wavelengths for brain imaging in *** we present a novel mesoscopic objective lens with an impressive field of view of 8 mm,a numerical aperture of 0.5,and a working wavelength range from 400 to 1000 *** achieved a resolution of 0.74μm in fluorescent beads *** versatility of this lens was further demonstrated through high-quality images of mouse brain and kidney sections in a wide-field imaging system,a confocal laser scanning system,and a two-photon imaging *** mesoscopic objective lens holds immense promise for advancing multi-wavelength imaging of large fields of view at high resolution.

关键词： mesoscopic objective lens large field-of-view high resolution multi-wavelength wide-field microscopy confocal laser scanning microscopy

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混合改进策略的黑猩猩优化算法及其机械应用

控制与决策 2023年第2期38卷 354-364页

作者：何庆罗仕杭贵州大学大数据与信息工程学院贵阳550025

针对黑猩猩优化算法存在易陷入局部最优、收敛速度慢、寻优精度低等缺陷,提出混合改进策略的黑猩猩优化算法(SLWChOA).首先,利用Sobol序列初始化种群,增加种群的随机性和多样性,为算法全局寻优奠定基础;其次,引入基于凸透镜成像的反向... 详细信息

针对黑猩猩优化算法存在易陷入局部最优、收敛速度慢、寻优精度低等缺陷,提出混合改进策略的黑猩猩优化算法(SLWChOA).首先,利用Sobol序列初始化种群,增加种群的随机性和多样性,为算法全局寻优奠定基础;其次,引入基于凸透镜成像的反向学习策略,将其应用到当前最优个体上产生新的个体,提高算法的收敛精度和速度;同时,将水波动态自适应因子添加到攻击者位置更新处,增强算法跳出局部最优的能力;最后,通过10个基准测试函数、Wilcoxon秩和检验以及部分CEC2014函数进行仿真实验来评价改进算法的寻优性能,实验结果表明,所提算法在寻优精度、收敛速度和鲁棒性上均较对比算法有较大提升.另外,通过一个机械优化设计实验进行测试分析,进一步验证了SLWChOA的可行性和适用性.

关键词：黑猩猩优化算法 Sobol序列凸透镜成像水波动态自适应因子机械优化设计

Crystal engineering regulation achieving inverse temperature symmetry breaking ferroelasticity in a cationic displacement type hybrid perovskite system

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Chinese Chemical Letters 2024年第5期35卷 477-481页

作者： Na Wang Wang luo Huaiyi Shen Huakai Li Zejiang Xu Zhiyuan Yue Chao shi Hengyun Ye Leping Miao Chaotic Matter Science Research Center Department of MaterialsMetallurgy and ChemistryJiangxi University of Science and TechnologyGanzhou 341000China

Ferroelastic hybrid perovskite materials have been revealed the significance in the applications of switches,sensors,actuators,***,it remains a challenge to design high-temperature ferroelastic to meet the requirements for the practical ***,we reported an one-dimensional organicinorganic hybrid perovskites(OIHP)(3-methylpyrazolium)CdCl_(3)(3-MBCC),which possesses a mmmF2/m ferroelastic phase transition at 263 ***,utilizing crystal engineering,we replace-CH_(3) with-NH_(2) and-H,which increases the intermolecular force between organic cations and inorganic *** phase transition temperature of(3-aminopyrazolium)CdCl_(3)(3-ABCC),and(pyrazolium)CdCl_(3)(BCC)increased by 73 K and 10 K,***,BCC undergoes an unconventional inverse temperature symmetry breaking(ISTB)ferroelastic phase transition around 273 ***,it transforms from a high symmetry low-temperature paraelastic phase(point group 2/m)to a low symmetry high-temperature ferroelastic phase(point group ī)originating from the rare mechanism of displacement of organic cations phase *** means that crystal BCC retains in ferroelastic phase above 273 K until melting point(446 K).Furthermore,characteristic ferroelastic domain patterns on crystal BCC are confirmed with polarized optical *** study enriches the molecular mechanism of ferroelastics in the family of organic-inorganic hybrids and opens up a new avenue for exploring high-temperature ferroic materials.

关键词： Organic-inorganic hybrid perovskite Crystal engineering Inverse temperature symmetry breaking Displacement type phase transition Ferroelasticity