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SYNTHESIS　AND　^（183）W，^（51）V　NMR　CHARACTERIZATION　OF　a－［GaW9V8O（40）］（5－）　HETEROPOLYANION

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Chinese Chemical Letters 1994年第7期5卷 603-604页

作者： xiao peng ZHAN and jing Fu LIU(Department of Chemistry Northeast Normal University, Changchun 130024)

The trivanadium-subatituted heteropolytungstates have been synthesized from their lacunary precusor a-Na9GaW9O(34)H2.(183)W NMR spectrum of the title anion consists of two lines as expected for the C3v structure of th... 详细信息

关键词： NMR OF SYNTHESIS GaW9V8O HETEROPOLYANION AND CHARACTERIZATION

The Value of PAPP-A and MMP-9 in the Diagnosis and Outcome of ACS Patients

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South China Journal of Cardiology 2007年第2期8卷 72-75,66页

作者： Huang Jun xiao jing peng jingtian Hao Lianman peng xiaoping Zhang Zhiliang Department of Cardiology The First Affiliated Hospital Nanchang University Nanchang 330006 China

Objectives To investigate the value of pregnancy-associated plasma protein-A （ PAPP-A ） and matrix metallo proteinase-9 （MMP-9） in the diagnosis and outcomes evaluation of acute coronary syndrome （ACS） patient. Methods 100 ACS patients were divided into UAP group （ 64 cases ） and AMI group （ 36 cases）, and 50 healthy cases served as control group. The levels of PAPP-A, MMP-9, Hs-CRP, CK-MB and cTnI were obtained. The ACS patients with normal CK-MB and cTnI concentration were followed up. During 6 months, the total rates of major cardiovascular events （MACE） were recorded. Results Compared to control group, the PAPP-A, MMP-9, Hs-CRP, CK-MB, cTnI levels of ACS patients were significantly increased （ P 〈 0.01 ）, but the levels of PAPP-A, MMP-9 did not correlate well with CK-MB and cTnI. The ACS patients with normal CK-MB and cTnI concentration were followed up 6 months, the levels of PAPP-A, MMP-9 were significantly associated with the MACE （ P 〈 0.01 ）. Conclusions The levels of PAPP-A, MMP-9 of ACS patients were not associated with myocardial ischemic necrosis, but could serve as predictor of unstable atherosclerotic plaque, and as valuable index for prognosis monitoring in ACS patients.

关键词： Acute coronary syndrome PAPP-A MMP-9 Hs-CRP

Highly conductive and stable iodine doped argyrodite electrolyte for all-solid-state lithium batteries

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Journal of Energy Chemistry 2025年第1期100卷 50-58页

作者： Gaozhan Liu jing Zhang jing Yang jinghui Chen Xingyue xiao Xiayin Yao Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Lithium argyrodites with high ionic conductivity and low cost are considered as one of the most prospective solid electrolytes for all-solid-state lithium ***,the poor chemical stability and compatibility with lithium metal limit their ***,Li5.4PS4.4Cl1.4I0.2solid electrolyte with high ionic conductivity of 11.49 m S cm-1and improved chemical stability is synthesized by iodine *** ultra-thin Li5.4PS4.4Cl1.4I0.2membrane with thickness of 10μm can be obtained by wet coating process,exhibiting a high ionic conductivity of 2.09 mS cm-1and low areal resistance of 1.17Ω***,iodine doping could in-situ form LiI at the lithium/electrolyte interface and improve the critical current density of Li5.4PS4.4Cl1.6from 0.8 to 1.35 mA *** resultant LiCoO2/Li5.4PS4.4Cl1.4I0.2/Li battery shows excellent cycling stability at 1 C,with a reversible specific capacity of 110.1 mA h g-1and a retention of 80.5% after 1000 *** addition,the assembled LiCoO2/Li5.4PS4.4Cl1.4I0.2membrane/Li pouch cell delivers an initial discharge capacity of 110.4 mA h g-1and 80.5% capacity retention after 100 cycles.

关键词： Solid-State Batteries

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甘肃岷县大崇教寺明清契约文书研究

青海民族研究 2013年第3期24卷 74-81页

作者：彭晓静敦煌研究院甘肃兰州730000

甘肃岷县大崇教寺收藏的明清契约文书共有32件,对当时岷州地区的政治、军事、宗教状况均有所反映。本文选择其中5件代表性的文书进行分析,研究大崇教寺文书形成的原因、契约形式及政府对土地的管理等情况。契约文书原件基本保存完整,真... 详细信息

甘肃岷县大崇教寺收藏的明清契约文书共有32件,对当时岷州地区的政治、军事、宗教状况均有所反映。本文选择其中5件代表性的文书进行分析,研究大崇教寺文书形成的原因、契约形式及政府对土地的管理等情况。契约文书原件基本保存完整,真实具体地记录了大崇教寺明代以来寺院经济及其它方面的活动,颇具地区特点。通过对其整理、考证及相关研究,恢复契约文书所反映的时代面貌,勾勒出明清大崇教寺寺院经济的基本发展状况,探寻其内在的规律。

关键词：大崇教寺明清契约文书

Electrochemical conversion of methane to bridge the gap in the artificial carbon cycle

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Journal of Energy Chemistry 2025年第1期100卷 286-308页

作者： Yuhao peng Yuefeng Song Ihar Razanau Juanxiu xiao Wei xiao Di Hu Guoxiong Wang College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Dalian Institute of Chemical Physics Chinese Academy of Sciences Laboratory of Physical-Chemical Technologies SSPA Scientific and Practical Materials Research Centre of NAS of Belarus State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University Department of Chemical and Environmental Engineering University of Nottingham Ningbo China

Methane, an abundant one-carbon（C1） resource, is extensively used in the industrial production of vital fuels and value-added chemicals. However, current industrial methane conversion technologies are energy-and carbon-intensive, mainly due to the high activation energy required to break the inert C–H bond, low selectivity, and problematic side reactions, including CO2emissions and coke deposition. Electrochemical conversion of methane（ECM） using intermittent renewable energy offers an attractive solution, due to its modular reactor design and operational flexibility across a broad spectrum of temperatures and pressures. This review emphasizes conversion pathways of methane in various reaction systems, highlighting the significance and advantages of ECM in facilitating a sustainable artificial carbon cycle. This work provides a comprehensive overview of conventional methane activation mechanisms and delineates the complete pathways of methane conversion in electrolysis contexts. Based on surface/interface chemistry, this work systematically analyzes proposed reaction pathways and corresponding strategies to enhance ECM efficiency towards various target products, including syngas, hydrocarbons, oxygenates, and advanced carbon materials. The discussion also encompasses opportunities and challenges for the ECM process, including insights into ECM pathways, rational electrocatalyst design, establishment of benchmarking protocols, electrolyte engineering, enhancement of CH4conversion rates, and minimization of CO2emission.

关键词： Activation energy

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： xiao Xiang Feng Gao Yu-Gui peng peng Wu Zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

Designing Electronic Structures of Multiscale Helical Converters for Tailored Ultrabroad Electromagnetic Absorption

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Nano-Micro Letters 2025年第1期17卷 439-455页

作者： Zhaobo Feng Chongbo Liu Xin Li Guangsheng Luo Naixin Zhai Ruizhe Hu jing Lin Jinbin peng Yuhui peng Renchao Che Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle School of Environmental and Chemical EngineeringNanchang Hangkong UniversityNanchang 330063People’s Republic of China School of Physics and Materials Nanchang UniversityNanchang 330031People’s Republic of China Key Laboratory of Nondestructive Testing Ministry of EducationNanchang Hangkong UniversityNanchang 330063People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering and TechnologyFudan UniversityShanghai 200438People’s Republic of China

Atomic-scale doping strategies and structure design play pivotal roles in tailoring the electronic structure and physicochemical property of electromagnetic wave absorption(EMWA)***,the relationship between configuration and electromagnetic(EM)loss mechanism has remained ***,drawing inspiration from the DNA transcription process,we report the successful synthesis of novel in situ Mn/N co-doped helical carbon nanotubes with ultrabroad EMWA *** calculation and EM simulation confirm that the orbital coupling and spin polarization of the Mn–N4–C configuration,along with cross polarization generated by the helical structure,endow the helical converters with enhanced EM *** a result,HMC-8 demonstrates outstanding EMWA performance,achieving a minimum reflection loss of−63.13 dB at an ultralow thickness of 1.29 *** precise tuning of the graphite domain size,HMC-7 achieves an effective absorption bandwidth(EAB)of 6.08 GHz at 2.02 mm ***,constructing macroscale gradient metamaterials enables an ultrabroadband EAB of 12.16 GHz at a thickness of only 5.00 mm,with the maximum radar cross section reduction value reaching 36.4 dB *** innovative approach not only advances the understanding of metal–nonmetal co-doping but also realizes broadband EMWA,thus contributing to the development of EMWA mechanisms and applications.

关键词： Metal-nonmetal co-doping 3d-2p orbital coupling Spin polarization Helical structure Broadband EM wave absorption

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京津冀城市群创新效率及影响因素研究

技术经济与管理研究 2021年第2期 118-122页

作者：彭晓静中共河北省委党校河北石家庄050061

科技创新效率是反映一个区域创新资源配置状况和创新质量的重要指标。文章利用DEA-BCC模型和Malmquist指数法对2012-2018年京津冀城市群科技创新效率进行静态和动态评价。以各城市每年的综合技术效率值为被解释变量,利用Tobit模型分析... 详细信息

科技创新效率是反映一个区域创新资源配置状况和创新质量的重要指标。文章利用DEA-BCC模型和Malmquist指数法对2012-2018年京津冀城市群科技创新效率进行静态和动态评价。以各城市每年的综合技术效率值为被解释变量,利用Tobit模型分析经济发展水平、政府支持、工资状况、外商投资水平、劳动者素质5个因素对城市创新效率的影响。研究结论表明:受规模效率偏低的影响,京津冀城市群的综合技术效率不高,但是随着时间的变化,城市创新的全要素生产率、技术效率不断增长,创新程度不断增强。同时还发现,政府支持、外商投资水平与城市创新效率是正相关关系,经济发展水平与劳动者素质对城市创新的影响不显著。

关键词：科技创新创新效率城市群区域经济

中国三大城市群工业企业创新效率研究——基于京津冀、长三角、珠三角城市群的比较

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技术经济与管理研究 2022年第4期 30-34页

作者：彭晓静中共河北省委党校国际战略研究所河北石家庄050000

创新效率是反映工业企业创新资源配置和创新质量的重要指标。文章利用Malmquist方法对2010—2019年京津冀、长三角、珠三角三大城市群中38个城市的工业企业全要素生产率进行测算,来反映工业企业创新效率的动态变化。研究表明:“十三五... 详细信息

创新效率是反映工业企业创新资源配置和创新质量的重要指标。文章利用Malmquist方法对2010—2019年京津冀、长三角、珠三角三大城市群中38个城市的工业企业全要素生产率进行测算,来反映工业企业创新效率的动态变化。研究表明:“十三五”时期工业企业创新效率的发展态势好于“十二五”时期。随着时间的推移,三大城市群工业企业创新效率动态变化存在差异,京津冀城市群和珠三角城市群工业企业创新效率处于提升状态,长三角城市群工业企业创新效率略有下降。同时,全要素生产率变化受技术效率变化和技术变化的影响程度存在区域差异。据此,文章提出要加快区域工业企业协同创新共同体建设,加大经费和人员等创新要素投入,完善企业创新服务体系等建议。

关键词：三大城市群工业企业全要素生产率 Malmquist方法