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An in-situ polymerized interphase engineering for high-voltage allsolid- state lithium-metal batteries

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Nano Research 2024年第4期17卷 2687-2692页

作者： lu nie Shaojie Chen Mengtian Zhang Tianyi Gao Yuyao Zhang Ran Wei Yining Zhang Wei Liu School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Tsinghua-Berkeley Shenzhen Institute&Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China

All-solid-state lithium batteries(ASSLBs)have attracted great interest due to their promising energy density and strong ***,the interface issues,including large interfacial resistance between electrode and electrolyte and low electrochemical stability of solid-state electrolytes against high-voltage cathodes,have restricted the development of high-voltage ***,we report an ASSLB with stable cycling by adopting a conformal polymer interlayer in-situ formed at the Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO)–cathode *** polymer can perfectlyﬁll the voids and create a stable interface contact between LLZTO and *** addition,the electric field across the polymer interlayer is reduced compared with pure solid polymer electrolyte(SPE),which facilitates the electrochemical stability with high-voltage *** all-solid-state Li|LLZTO-SPE|LiFe_(0.4)Mn_(0.6)PO_(4)(LMFP)cells achieve a low interface impedance,high specific capacity,and excellent cycling *** work presents an effective and practical strategy to rationally design the electrode–electrolyte interface for the application of high-voltage ASSLBs.

关键词： all-solid-state lithium batteries interface contact electric field electrochemical stability

All-sky Guide Star Catalog for CSST

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Research in Astronomy and Astrophysics 2024年第4期24卷 35-59页

作者： Hui-Mei Feng Zi-Huang Cao Man I Lam Ran Li Hao Tian Da-Yi Yin Yuan-Yu Yang Xin Zhang Dong-Wei Fan Yi-Qiao Dong Xin-Feng Li Wei Wang Long Li Hugh RAJones Yi-Han Tao Jia-lu nie Pei-Pei Wang Mao-Yuan Liu He-jun Yang Chao Liu Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of ChineseAcademy of Sciences Beijing 100049China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai200083China Technology and Engineering Center for Space Utilization.Chinese Academy of Sciences Beijing 100094China Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Centre for Astrophysics University of HertfordshireHatfieldUK Beijing University of Technology Beijing 100124China

The China Space Station Telescope(CSST)is a two-meter space telescope with multiple back-end *** Fine Guidance Sensor(FGS)is an essential subsystem of the CSST Precision Image Stability System to ensure the required absolute pointing accuracy and line-of-sight *** this study,we construct the Main Guide Star Catalog for *** accomplish this,we utilize the information about the FGS and object information from the Gaia Data Release *** provide an FGS instrument magnitude and exclude variables,binaries,and high proper motion stars from the catalog to ensure uniform FGS guidance ***,we generate a HEALPix index,which provides a hierarchical tessellation of the celestial sphere,and employ the Voronoi algorithm to achieve a homogeneous distribution of stars across the *** distribution ensures adequate coverage and sampling of the *** performance of the CSST guide star catalog was assessed by simulating the field of view of the FGS according to the CSST mock survey strategy *** analysis of the results indicates that this catalog provides adequate coverage and *** catalog's performance meets the FGS requirements,ensuring the functioning of the FGS and its guidance capabilities.

关键词： catalogs astrometry instrumentation:detectors

新时代中国共产党人自我革命的唯物史观意蕴探析

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武汉商学院学报 2024年第1期38卷 92-96页

作者：聂鲁倩东南大学江苏南京210096

马克思主义唯物史观是揭示人类社会历史客观规律的科学理论,是新时代中国共产党人开展自我革命实践的哲学基础。中国共产党科学把握社会存在与社会意识的关系原理,在开展自我革命过程中坚持实事求是、重视思想建设。中国共产党深度运用... 详细信息

马克思主义唯物史观是揭示人类社会历史客观规律的科学理论,是新时代中国共产党人开展自我革命实践的哲学基础。中国共产党科学把握社会存在与社会意识的关系原理,在开展自我革命过程中坚持实事求是、重视思想建设。中国共产党深度运用社会基本矛盾理论,党的自我革命始终服务于解放和发展生产力,不断解决突出矛盾和时代问题。中国共产党深入践行群众史观,坚持自我革命以人民利益为先、重视人民监督。中国共产党勇于自我革命、坚持自我革命的成功实践深化了对历史辩证法的认识,为世界上其他政党治国理政提供了中国智慧与经验。

关键词：中国共产党自我革命唯物史观

Challenges and strategies of lithium-rich layered oxides for Li-ion batteries

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Nano Research 2023年第1期16卷 391-402页

作者： lu nie Shaojie Chen Wei Liu School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China

Lithium-ion batteries are considered a promising energy storage technology in portable electronics and electric vehicles due to their high energy density,competitive cost,and environmental *** cathode materials is an effective way to meet the demand for better batteries,of which the utilization of high-voltage cathode materials is an important development *** recent years,lithium-rich layered oxides have gained great attention due to their desirable energy *** review presents the relationships between lattice structure and electrochemical properties,the underlying degradation mechanisms,and corresponding modification *** recent progress and strategies are then highlighted,including element doping,surface coating,morphology design,size control,***,a concise perspective for future developments and practical applications of lithium-rich layered oxides has been provided.

关键词： lithium-ion batteries lithium-rich layered oxides lattice structure degradation mechanism element doping

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双层圆柱壳在均匀轴压下的屈曲行为

舰船科学技术 2024年第2期46卷 15-22页

作者：聂露清王黎辉唐文献江苏科技大学机械工程学院江苏镇江2120001

对双层不锈钢圆柱壳在均匀轴压下的屈曲性能进行研究,分别设计、制作和测量了3个名义相同的双层圆柱薄壳,其长径比均为1.7。通过对试样进行轴向压缩试验获得其载荷位移曲线和极限强度,采用弧长法对试样进行非线性屈曲分析,得到平衡曲线... 详细信息

对双层不锈钢圆柱壳在均匀轴压下的屈曲性能进行研究,分别设计、制作和测量了3个名义相同的双层圆柱薄壳,其长径比均为1.7。通过对试样进行轴向压缩试验获得其载荷位移曲线和极限强度,采用弧长法对试样进行非线性屈曲分析,得到平衡曲线和临界载荷并与试验结果进行对比。另外采用数值分析法研究双层圆柱壳的缺陷敏感性,进而推测出一种用于评估双层圆柱壳承载能力的理论公式。结果表明,双层圆柱壳的平均极限强度约为单层的1.85倍,双层圆柱壳是缺陷敏感结构,其缺陷敏感性与内层壳体缺陷敏感性趋于一致,且双层圆柱壳的缺陷敏感性随长径比的增加而降低,试验结果、数值计算和理论预测具有较高一致性。

关键词：轴向压缩双层圆柱壳屈曲分析缺陷敏感性

Dynamically Computing Approximate Frequency Counts in Sliding Window over Data Stream

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Wuhan University Journal of Natural Sciences 2006年第1期11卷 283-288页

作者： nie Guo-liang lu Zheng-ding School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074Hubei China

This paper presents two one-pass algorithms for dynamically computing frequency counts in sliding window over a data stream-computing frequency counts exceeding user-specified threshold ε. The first algorithm constructs subwindows and deletes expired sub-windows periodically in sliding window, and each sub-window maintains a summary data structure. The first algorithm outputs at most 1/ε ＋ 1 elements for frequency queries over the most recent N elements. The second algorithm adapts multiple levels method to deal with data stream. Once the sketch of the most recent N elements has been constructed, the second algorithm can provides the answers to the frequency queries over the most recent n （ n≤N） elements. The second algorithm outputs at most 1/ε ＋ 2 elements. The analytical and experimental results show that our algorithms are accurate and effective.

关键词： data stream sliding window approximation algorithms frequency counts

Engineered Functional Surfaces by Laser Microprocessing for Biomedical Applications

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Engineering 2018年第6期4卷 822-830页

作者： Guoqing Hu Kai Guan Libin lu Jiaru Zhang nie lu Yingchun Guan School of Mechanical Engineering and Automation Beihang UniversityBeijing 100083China Hefei Innovation Research Institute Beihang UniversityHefei 230013China Department of Oncology Center of ExcellenceBOE Hefei Digital Hospital Co.Ltd.Hefei 230013China Beijing Long March Space Vehicle Research Institute First Academy of the China Aerospace CorporationBeijing 100076China National Engineering Laboratory of Additive Manufacturing for Large Metallic Components Beihang UniversityBeijing 100083China

Metallic biomaterials are increasingly being used in various medical applications due to their high strength,fracture resistance,good electrical conductivity,and ***,their practical applications have been largely limited due to poor surface *** microprocessing is an advanced method of enhancing the surface-related properties of *** work demonstrates the capability of laser microprocessing for biomedical metallic materials including magnesium and titanium alloys,with potential applications in cell adhesion and liquid *** investigate laser-material interaction,microstructural evolution,and surface performance,and analyze cell behavior and the surface-enhanced Raman scattering(SERS)***,we explore a theoretical study on the laser microprocessing of metallic alloys that shows interesting results with potential *** results show that cells exhibit good adhesion behavior at the surface of the laser-treated surface,with a preferential direction based on the textured structure.A significant SERS enhancement of 6×10^3 can be obtained at the laser-textured surface during Raman measurement.

关键词： Laser microprocessing Functional surface Metallic alloy Niocompatibility SERS

系统性炎症指标对下肢动脉硬化闭塞症患者发生肌少症的预测价值

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江苏大学学报（医学版） 2024年第1期34卷 74-78,92页

作者：聂璐杨启帆郑维淼徐强江苏大学附属武进医院介入血管科江苏常州213017 徐州医科大学武进临床学院江苏常州213017 江苏大学附属人民医院消化科江苏镇江212002

目的:评估全身免疫炎症指数(SII)、血小板/淋巴细胞比值(PLR)、中性粒细胞/淋巴细胞比值(NLR)、淋巴细胞/单核细胞比值(LMR)和C反应蛋白(CRP)等系统性炎症指标对下肢动脉硬化闭塞症(ASO)患者发生肌少症的预测价值。方法:本研究纳入江苏... 详细信息

目的:评估全身免疫炎症指数(SII)、血小板/淋巴细胞比值(PLR)、中性粒细胞/淋巴细胞比值(NLR)、淋巴细胞/单核细胞比值(LMR)和C反应蛋白(CRP)等系统性炎症指标对下肢动脉硬化闭塞症(ASO)患者发生肌少症的预测价值。方法:本研究纳入江苏大学附属武进医院和南京医科大学附属常州第二人民医院的251例ASO患者。依据第三腰椎腰大肌指数(PMI)将患者分为肌少症组和非肌少症组。收集患者的一般资料和相关血液指标,并计算SII、PLR、NLR和LMR。通过二分类Logistic回归分析确定ASO患者发生肌少症的危险因素,并采用受试者工作特征(ROC)曲线评估相关指标的预测效果。结果:251例ASO患者中,肌少症组和非肌少症组患者数分别为98例(39.0%)和153例(61.0%)。与非肌少症组相比,肌少症组患者年龄明显增加(P<0.001),SII、PLR、NLR和CRP水平明显增高(P<0.01),而BMI和LMR水平明显降低(P<0.01)。多因素Logistic回归分析结果表明,高龄、BMI偏低、SII上升均为ASO患者发生肌少症的独立危险因素。ROC曲线结果显示,年龄、BMI、SII和3项指标联合预测肌少症发生的曲线下面积分别为0.674、0.678、0.644和0.746(P均<0.001)。结论:年龄、BMI及系统性炎症指标中的SII对ASO患者肌少症的发生有一定的预测价值。

关键词：系统性炎症指标下肢动脉硬化闭塞症肌少症

Synthesis and fluorescent properties in complexes of Eu( Ⅲ), Tb( Ⅲ), and Sm( Ⅲ) with β-diketone and 2,2′-bipyridine

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Rare Metals 2012年第5期31卷 -页

作者： LIU Xingwang JIANG Jiadong GUO Yuwei YONG Shengli YANG Kun nie lu School of Chemistry Baotou Teachers' College Baotou 014030 China School of Chemical Engineering Inner Mongolia University of Technology Hohhot 010051 China

Three new rare earth ternary complexes, RE(PB)_3bpy (RE=Sm^(3+) , Eu^(3+) , and Tb^(3+) ), were synthesized by the reaction of 1-(p-phenylethynyl- phenyl)-1,3-butanedione (HPB) and 2,2′-bipyridine (bpy) with rare earth chloride RECl_3 , respectively, in alcohol solution. The compositions were characterized by means of infrared (IR) spectra, chemical analysis, elemental analysis, and thermodynamic analysis. luminescent properties of the three complexes were studied. At room temperature, under UV light excitation, the Sm^(3+) , Eu^(3+) , and Tb^(3+) complexes exhibit characteristic emission of the central ions. The fluorescence spectra show that the fluorescence emission intensity of Eu^(3+) complex is the strongest. The narrow strongest emission band of Eu^(3+) complex is considered to be a valuable material with bright red fluorescence.

关键词： β-diketone 2,2′-bipyridine lanthanide complex luminescent property