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Acta Metallurgica Sinica(English Letters) 2005年第2期18卷 96-106页

作者： Y.T.Chen X.Chen Q.F.Ding j.zeng TechnologyCenter WuhanIronandSteel（group）CooperationWuhan430080China

The microstructure and the characteristics of the inclusions embedded in ferrite matrix in simulated coarse-grain heat affected zone (CGHAZ) of a Ti-Zr-treated high strength low alloy (HSLA) steel have been investigated. The microstructure of the simulated CGHAZ dominantly consisted of intragranular acicular ferrite (IAF) combining with a small amount of polygonal ferrite (PF), widmanst tten ferrite (WF), bainite ferrite (BF), pearlite and martensite-austenite (M-A) islands. The PF, WF and BF were generally observed at the prior austenite grain boundaries and the interlocking acicular ferrite was usually found intragranularly. It was found that the inclusions were composed of Ti2O3, ZrO2, Al2O3 locating at the center of the particles and MnS lying on the surface layer of the inclusions. The intragranular complex inclusions promoted the acicular ferrite formation and the refinement of microstructure whilst those at prior austenite grain boundaries caused PF formation on the inclusions. The simulated CGHAZ consisting of such complicated microstructure exhibited desired mechanical properties.

关键词： microalloyed HSLA steel heat affected zone microstructure mechanical property inclusion acicular ferrite titanium zirconium

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APS(年龄、血小板、2D剪切波弹性成像)评分预测慢性乙型肝炎病人的肝细胞癌发生情况

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国际医学放射学杂志 2022年第1期 105-106页

作者： T.Zhang G.L.Zhang X.L.Deng j.zeng j.Y.jin 刘臻

摘要二维（2D）剪切波弹性成像（SWE）被认为是预测由慢性乙型肝炎（CHB）发展为肝细胞癌（HCC）的有效方法。目的建立2D SWE预测慢性乙型肝炎病人发展为肝癌的风险

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天鹅展翅:高品质论文的引文模式探析

大学图书馆学报 2019年第2期37卷 83-87,112页

作者：曾继城张家榕叶鹰南京大学信息管理学院南京2100232 南京大学-UIUC国际联合信息学实验室南京210023

"天鹅"现象是高品质论文中出现的一种特殊引文模式,定义为具有关联意义的成对出现的高被引论文,其中前期发表的具有科学发现意义的是"白天鹅"而后来发表的象征科学突破并引起前期论文引用下降的是"黑天鹅"。该文以诺贝尔物理学奖、化学... 详细信息

"天鹅"现象是高品质论文中出现的一种特殊引文模式,定义为具有关联意义的成对出现的高被引论文,其中前期发表的具有科学发现意义的是"白天鹅"而后来发表的象征科学突破并引起前期论文引用下降的是"黑天鹅"。该文以诺贝尔物理学奖、化学奖、生理学或医学奖得主的关键论文为样本集,用"天鹅指数"测量了每类中选出的"黑、白天鹅"样例。"天鹅"引文模式结合了科学发现实质和科学引文数据,可望为突破性科学论文提供一个可量化测评的思路和方法。

关键词：高品质论文引文分析天鹅

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Distinct Reconstruction Patterns and Spin-Resolved Electronic States along the Zigzag Edges of Transition Metal Dichalcogenides

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Distinct Reconstruction Patterns and Spin-Resolved Electroni...

Study on Source Neutron Moderation of PFTNA Landmine Detection

中国化学会第30届学术年会-第四十分会：纳米体系理论与模拟

作者： Ping Cui j.H.Choi W.Chen j.zeng C.D.Zhang C.K.Shih Z.Y.Li Z.Y.Zhang International Center for Quantum Design of Functional Materials (ICQD) Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Department of Physics Hanyang University Department of Physics and School of Engineering and Applied Sciences Harvard University Department of Physics The University of Texas at Austin

Two-dimensional transition metal dichalcogenides represent an emerging class of materials exhibiting various intriguing properties, and integration of such materials for potential device applications will necessarily encounter creation of different boundaries. Using first-principles approaches, here we investigate the structural, electronic, and magnetic properties along two inequivalent zigzag M and X edges of MX(M=Mo, W;X=S, Se). Along the M edges, we reveal a previously unrecognized but energetically strongly preferred(2x1) reconstruction pattern, which is universally operative for all the MX, characterized by a self-passivation mechanism through place exchanges of the outmost X and M edge atoms. In contrast, the X edges undergo a more moderate(2x1) or(3x1) reconstruction for MoX or WX, respectively. We further use the prototypical zigzag MoX nanoribbons to demonstrate that the M and X edges possess distinctly different electronic and magnetic properties, which are discussed for spintronic and catalytic applications.

关键词： First principles Transition metal dichalcogenides Edge reconstruction Electronic properties

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Study on Source Neutron Moderation of PFTNA Landmine Detecti...

使用基于临床和影像学特征的机器学习模型预测接受新辅助化疗的食管鳞状细胞癌病人的病理完全缓解

第三届全国核技术与应用学术研讨会

作者： G.Ding,F.H.Hao,C.S.Chu~*,j.zeng,Q.P.Xiang,j.R.Lei,G.C.Hu Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China

For higher detection speed of N,H elements in the pulsed fast/thermal neutron analysis("PFTNA"for short) landmine detection experiment,a brand new moderator designed by Mont-Carlo method was introduced to the pulsed d-T neutron *** calculation result was validated by experiments,and the verification result indicates that,the adoption of graphite moderator can not only largely improvethe detection speed of N,H elements,but also enhance the measurement of C,O by increasing the fast neutron flux.

关键词： pulsed fast/thermal neutron PFTNA landmine detection explosive detection M-C simulation

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国际医学放射学杂志 2024年第1期 128-129页

作者： j.Wang X.Zhu j.zeng C.Liu W.Shen X.j.Sun 刘莹莹

摘要目的建立基于影像学特征的机器学习模型，以预测食管鳞状细胞癌（ESCC）病人新辅助化放疗（nCRT）的病理临床缓解（pCR）。方法招募2008年1月—2018年12月期

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超声剪切波弹性频散成像对于慢性肝脏疾病的鉴别价值

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国际医学放射学杂志 2023年第1期46卷 109-109页

作者： X.Q.Zhang R.Q.Zheng j.Y.jin j.F.Wang T.Zhang j.zeng 袁园

摘要二维(2D)剪切波弹性成像(SWE)的黏度相关参数——频散斜率(DS)对于肝脏病变分期的优势尚不明确。目的评估DS作为辅助指标是否能提高对肝脏坏死性炎症、纤

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Boosting hydrocarbon conversion via Cu-doping induced oxygen vacancies on CeO2 in CO2 electroreduction

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journal of Energy Chemistry 2025年第1期100卷 66-76页

作者： Lei Xue Tong Shi Chenhui Han Heng Zhang Fenrong Liu Haorun Li Yan Wang Xiaojun Gu Shanghong zeng Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials School of Chemistry and Chemical Engineering Inner Mongolia University State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Institute of Catalysis Department of Chemistry Zhejiang University National Key Laboratory of Baiyunobo Rare Earth Resource Research and Comprehensive Utilization Baotou Research Institute of Rare Earths

Conversion of CO2back to hydrocarbons is the most direct way of closing the“carbon cycle”,and its significance is further enlarged if this process is driven by renewable energies such as ***,precisely controlling the product selectivity towards hydrocarbons against the competitive hydrogen evolution remains challenging,especially for Cu-based ***,we report a novel defect engineering strategy,by which Cu-doping-induced oxygen vacancies on CeO2nanorods were effectively created,with adjustable vacancy/Cu *** resulting optimum catalyst shows up to 79% catalytic current density to hydrocarbons （excluding CO）,with 49% faradaic efficiency to *** and density functional theory unveil that the ratio between oxygen vacancy and Cu affects significantly the formation of*CHO and activation of H2O,which leads to the following deep hydrogenation to *** findings may spur new insights for designing and developing more controllable chemical process relevant to CO2utilization.

关键词： Oxygen vacancy Hydrocarbon production Reaction mechanism

二维剪切波弹性成像与传统超声成像:肝纤维化及肝硬化的最优评价

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国际医学放射学杂志 2015年第3期 285-285页

作者： j.Zheng H.Guo j.zeng Z.Huang B.Zheng j.Ren 陈超 Department of Medical Ultrasonics Third Affiliated Hospital of Sun Yat-Sen University

目的评估单独及联合应用二维(2D)剪切波弹性成像(SWE)和传统超声成像(US)评价肝纤维化和肝硬化的表现,以确定何时应将2D SWE加入到常规超声检查。材料

关键词：剪切波弹性成像超声成像肝纤维化肝疾病肝硬化

二维横波弹性成像对慢性乙肝肝纤维化进行无创分级的诊断准确性:基于内部检验的队列研究

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国际医学放射学杂志 2014年第6期 610-610页

作者： j.zeng G.j.Liu Z.P.Huang j.Zheng T.Wu R.Q.Zheng 刘代洪 Department of Medical Ultrasonics Third Affliliated Hospital of Sun Yat-Sen University Institute of Diagnostic and Interventional Ultrasound Third Affliliated Hospital of Sun Yat-Sen University

摘要目的评估二维横波弹性成像(2D-SWE)对慢性乙肝(CHB)肝纤维化进行无创分级的诊断准确性。方法本研究纳入存在CHB感染且接受过肝脏组织活检的病人,并构建

关键词：诊断准确性肝纤维化 CHB 肝疾病弹性成像无创