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新文科视域下中美高校历史学科研究竞争力的四维考察

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浙江大学学报（人文社会科学版） 2024年第8期54卷 138-148页

作者：卢军霞陈振英浙江大学历史学院浙江杭州310058 浙江大学图书馆浙江杭州310027

新文科视域下,哲学社会科学的发展应当实现历史传承与时代创新相结合,历史学自主知识体系构建一定程度上推动了哲学社会科学的发展。学术论文是学术研究的重要成果,是高校学科建设的重要表征,是知识体系构建的理论积累,一定程度上反映... 详细信息

新文科视域下,哲学社会科学的发展应当实现历史传承与时代创新相结合,历史学自主知识体系构建一定程度上推动了哲学社会科学的发展。学术论文是学术研究的重要成果,是高校学科建设的重要表征,是知识体系构建的理论积累,一定程度上反映了学术研究的竞争力。以历史学研究论文为对象,可从研究生产力、影响力、发展力和国际合作力四个维度构建历史学研究竞争力评价模型。对中美10所高校在Scopus数据库中2014年至2023年历史学研究论文进行对比分析,发现中国高校和美国高校在研究竞争力四个维度上各有千秋,中国高校研究生产力规模低于美国高校,但研究影响力及趋势表现优秀;研究发展力美国高校保持较大优势,但中国高校显示出更好的发展潜力;国际合作竞争力中国高校有较大优势,但发展趋势有所下降。这些结论能够为我国高校历史学科建设提供参考。

关键词：中美高校历史学科研究竞争力评价考察

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双维视角的高校学科布局特征及优化策略

高等工程教育研究 2024年第2期 117-122页

作者：卢军霞陈振英王凯飞浙江大学历史学院浙江大学图书馆

学科竞争力与学科布局分析是明确高校学科发展特征的重要分析维度。以Essential Science Indicators分类中Engineering的发文为研究基础,通过对浙江大学等四所代表性高校学科的论文质量与数量指标交叉,综合运用测度宏观布局的象限分析... 详细信息

学科竞争力与学科布局分析是明确高校学科发展特征的重要分析维度。以Essential Science Indicators分类中Engineering的发文为研究基础,通过对浙江大学等四所代表性高校学科的论文质量与数量指标交叉,综合运用测度宏观布局的象限分析法和测度微观布局结构的梯队分级测度法,分析研究规模和学术影响力,从宏观微观双维视角比较高校学科布局特点和竞争力。研究发现,基于象限的宏观分析法可直观地剖析学科优劣特征;基于细致量化指标的梯度测度法通过横向对比,可从微观视角获取学科的梯队划分以及梯队内部分层。有效分析高校学科竞争力与布局特征,可对高校制定学科规划、优化学科结构布局、加快建设世界一流学科建设提供参考。

关键词：学科竞争力学科布局象限分析梯队分析测度法

Monitoring the morphology evolution of LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)during high-temperature solid state synthesis via in situ SEM

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Journal of Energy Chemistry 2022年第3期31卷 9-15,I0001页

作者： Liang Tang Xiaopeng Cheng Rui Wu Tianci Cao junxia lu Yuefei Zhang Ze Zhang Institute of Microstructure and Property of Advanced Materials Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Institute of Laser Engineering Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China School of Materials Science and Engineering Zhejiang UniversityHangzhou 310058ZhejiangChina

The particle morphology determined by the sintering process is the director factor affecting the electrochemical performance of Ni-rich NMC cathode *** prepare the ideal NMC particles,it is of great significance to understand the morphological changes during sintering *** this work,the morphology evolution of LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)(NMC811)synthesis at temperature ranging from 300–1080℃were observed by in situ *** uniform mixture of spherical Ni_(0.8)Mn_(0.1)Co_(0.1)(OH)_(2)precursor and lithium sources(LiOH)was employed by high temperature solid-state process inside the SEM,which enables us to observe morphology changes in real *** results show that synthetic reaction of LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)usually includes three processes:the raw materials’dehydration,oxidation,and combination,accompanied by a significant reduction in particle size,which is important reference to control the synthesis *** heating temperature rise,the morphology of mixture also changed from flake to ***,Ni nanoparticle formation is apparent at higher temperature~1000℃,suggesting a structural transformation from a layered to a rock-salt-like *** the in-situ observed changes in size and morphology,and with the premise of ensuring the morphology change from flakes to bricks,reducing the sintering temperature as much as possible to prevent excessive reduction in particle size and layered to a rock-salt structure transformation is recommended for prepare ideal NMC particles.

关键词： Lithium-ion battery NMC cathode In situ SEM High temperature imaging Particle morphology

Microstructure Evolution and Mechanical Behavior of Laser Melting Deposited TA15 Alloy at 500℃ under In-Situ Tension in SEM

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Acta Metallurgica Sinica(English Letters) 2021年第9期34卷 1201-1212页

作者： Muhammad Rizwan junxia lu Fei Chen Ruxia Chai Rafi Ullah Yuefei Zhang Ze Zhang Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124China Beijing Key Laboratory of Special Elastomer Composite Materials College of Materials Science and EngineeringBeijing Institute of Petrochemical TechnologyBeijing 102617China Department of Materials Science and Engineering Zhejiang UniversityHangzhou 310058China

TA15 alloy fabricated by laser melting deposition was investigated at 500℃ under tensile deformation. The damage behavior of microstructure was analyzed by the real time observation of the microstructure evolution, microcracks initiation and propagation using in-situ tensile equipment fitted in the SEM chamber. Finally, the mechanism of fracture was discussed. The result showed anisotropic mechanical properties in X-and Z-direction. The existence of columnar β grains and its orientation to the tensile direction were the major factors inducing the anisotropic mechanical properties. As compared to Z-direction specimen, high tensile strength was observed in X-direction specimen due to the resistance in slips propagation provided by the prior-β grain boundaries( β GBs). Accumulation of the cracks at prior β GB caused the shear fracture. In case of Z-direction specimen, parallel orientation of prior β GB and GB α with the tensile direction resulted in a homogeneous deformation. The high reduction of cross section showed the enhanced ductile characteristics at high temperature.

关键词： TA15 alloy In-situ tensile High temperature mechanical property Fracture Laser additive manufacturing Crack propagation

An Expedient Method for Regioselective Methylation of Catechol Coumarins

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Chemical Research in Chinese Universities 2016年第5期32卷 786-791页

作者： lu junxia WANG Ping HOU Jie ZOU Liwei CUI Pan YANG Ling GE Guangbo GONG Xiaojie College of Environmental and Chemical Engineering Dalian University Dalian 116622 P. R. China College of Medical Dalian University Dalian 116622 P. R. China Laboratory of Pharmaceutical Resource Discovery Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China College of Basic Medical Sciences Dalian Medical University Dalian 116044 P. R. China

An expedient and efficient method for selective methylation of catechol coumarins by working with different alkalis under appropriate reaction conditions was reported. Esculetins were selectively methylated at position 6 and position 7 in good yields using CH3I in the presence of Nail and Na2CO3, respectively. However, daphnetins showed less regioselectivity under the same reaction conditions. Furthermore, the site preference for the methylation reaction was interpreted by the density functional theory at B3LYP/6-31 ＋G（d） level.

关键词： Catechol coumarin Regioselective methylation Density functional theory

Roles of Phe58 residue in stabilizing structure of cytochrome b_5

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Chinese Science Bulletin 2002年第24期47卷 2063-2066页

作者： WANG Yunhua, lu junxia, WANG Wenhu, REN Yi, XIE Yi & HUANG ZhongxianDepartment of Chemistry, Fudan University, Shanghai 200433, China Department of Chemistry Fudan University Shanghai China

To understand effect of π-stacking interactions between the side chain of aromatic amino acids and the por-phyrin ring on structures and properties in cytochrome b5 (cyt b5), the Phe58 residue was mutated to tyrosine and tryptophan, respectively by site-directed mutagenesis. The denaturation of cyt bs F58W and F58Y toward guanidine hydrochloride was examined by UV-visible and fluorescence spectroscopy. The kinetics of heme transfer reactions between apo-myoglobin and the mutants were studied. The results indicated that the mutation of F58 residue for Y58 or W58 reduced the interaction between of peptide and the heme group, resulting in decrease of the Tm and Cm values of the proteins, increase of the heme transfer reaction rate, and shifts of the redox potential.

关键词： cytochrome b5 aromatic stacking heme-peptide interaction mutation structural stability

Advances in the treatment of IgA nephropathy with biological agents

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Chronic Diseases and Translational Medicine 2024年第1期10卷 1-11页

作者： Yongze Zhuang Hailing lu junxia Li Department of Nephrology 900 Hospital of the Joint Logistics TeamPLAFuzhou General Clinical Medical CollegeFujian Medical UniversityFuzhouFujianChina

Immunoglobulin A nephropathy(IgAN)is the most common primary glomerular disease,and the“four-hit”theory represents its currently accepted pathogenic *** immunity triggered by infections in the respiratory tract,intestines,or other areas leads to antigen presentation,T cell stimulation,B cell maturation,and the production of IgA-producing plasma *** proteins B-lymphocyte stimulator(BLyS)and a proliferation-inducing ligand(APRIL)are involved in this process,and alternative complement and lectin pathway activation are also part of the pathogenic *** Disease Improving Global Outcomes guidelines indicate that a specific effective treatment for IgAN is lacking,with renin-angiotensin-aldosterone system inhibitors being the primary *** research shows that biological agents can significantly reduce proteinuria,stabilize the estimated glomerular filtration rate,and reverse some pathological changes,such as endocapillary proliferation and crescent *** are four main categories of biological agents used to treat IgA nephropathy,specifically anti-CD20 monoclonal antibodies,anti-BLyS or APRIL monoclonal antibodies,monoclonal antibodies targeting both BLyS and APRIL(telitacicept and atacicept),and monoclonal antibodies inhibiting complement system activation(narsoplimab and eculizumab).However,further research on the dosages,treatment duration,long-term efficacy,and safety of these biological agents is required.

关键词： anti-CD20 monoclonal antibodies APRIL biological agents BLyS complement IgAnephropathy

La-Ni-Cr三元系600℃等温截面的相关系

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稀有金属材料与工程 2005年第5期34卷 758-760页

作者：吕俊霞周海庄应烘刘敬旗北京石油化工学院北京102617 广西大学有色金属材料及其加工新技术教育部重点实验室广西南宁530004

用X射线粉末衍射法,差热分析法和金相分析法测定了La-Ni-Cr三元系600℃等温截面的相关系。结果表明:此截面由10个单相区、17个两相区和8个三相区组成。在本实验条件下未发现新的三元化合物,没有观察到化合物Cr7Ni3和Cr3Ni2的谱线;化合物... 详细信息

用X射线粉末衍射法,差热分析法和金相分析法测定了La-Ni-Cr三元系600℃等温截面的相关系。结果表明:此截面由10个单相区、17个两相区和8个三相区组成。在本实验条件下未发现新的三元化合物,没有观察到化合物Cr7Ni3和Cr3Ni2的谱线;化合物La3Ni的谱线是由La和La7Ni3的谱线相叠加;没有观察到LaNi2,而观察到La7Ni16的存在。Ni在Cr中的最大固溶度大约为3at%,Cr在Ni,LaNi5,La2Ni7,LaNi3,La2Ni3,LaNi和La7Ni3中的最大固溶度(at%)分别约为35,20,15,8,9,9和6,Cr在La7Ni16中的固溶度几乎为零。

关键词：相图 La-Ni-Cr三元系 600℃等温截面

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电气火灾的产生及发展趋势

照明工程学报 2009年第3期20卷 81-84页

作者：吕俊霞河南工业职业技术学院电气工程系南阳市473009

电气火灾作为一种新的灾害,给人民的生命和财产造成的损失也与日俱增。因此,我们必须采取相应的预防措施,尽量预防和减小火灾事故的发生。

关键词：电气火灾易燃易爆物质电气设备电弧火花