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High-throughput investigations of configurational-transformation-dominated serrations in CuZr/Cu nanolaminates

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Journal of Materials Science & Technology 2020年第18期52卷 192-199页

作者： William Yi Wang Bin Gana Deye Lin Jun Wang Yiguang Wang Bin Tang Hongchao Kou shunli Shang Yi Wang Xingyu Gao Haifeng Song Xidong Hui Laszlo J.Kecskes Zhenhai Xia Karin A.Dahmen Peter K.Liaw Jinshan Lia Zi-Kui Liu State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an.710072China Beijing Key Laboratory of Advanced High Temperature Materials Central Iron and Steel Research InstituteBeijing100081China IMDEA Materials Institute Calle Eric Kandel 2GetafeMadrid28906Spain CAEP Software Center for High Performance Numerical Simulation Institute of Applied Physics and Computational MathematicsBeijing100088China Department of Materials Science and Engineering The Pennsylvania State UniversityUniversity ParkPA16802USA State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing100083China Hopkins Extreme Materials Institute Johns Hopkins UniversityBaltimoreMD21218USA Department of Physics University of Illinois at Urbana ChampaignUrbanaIL61801USA Department of Materials Science and Engineering The University of TennesseeKnoxvilleTN37996USA

Metallic amorphous/crystalline(A/C)nanolaminates exhibit excellent ductility while retaining their high ***,the underlying physical mechanisms and the resultant structural changes during plastic deformation still remain *** the present work,the structure-property relationship of CuZr/Cu A/C nanolaminates is established through integrated high-throughput micro-compression tests and molecular dynamics simulations together with high-resolution transmission electron *** serrated flow of nanolaminates results from the formation of hexagonal-close-packed(HCP)-type stacking faults and twins inside the face-centered-cubic(FCC)Cu nano-grains,the body-centered-cubic(BCC)-type ordering at their grain boundaries,and the crystallization of the amorphous CuZr *** serration behavior of CuZr/Cu A/C nanolaminates is determined by several factors,including the formation of dense dislocation networks from the multiplication of initial dislocations that formed after yielding,weak-spots-related configurational-transitions and shear-transition-zone activities,and deformation-induced *** present work provides an insight into the heterogeneous deformation mechanism of A/C nanolaminates at the atomic scale,and mechanistic base for the microstructural design of self-toughening metallic-glass(MG)-based composites and A/C nanolaminates.

关键词： Nanolaminates Serration Configurational transformation Molecular dynamics Metallic glass

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超临界二氧化碳管道杂质对节流温降的影响

石油学报 2016年第1期37卷 111-116页

作者：赵青李玉星李顺丽中国石油管道科技研究中心河北廊坊065000 中国石油大学储运与建筑工程学院山东青岛266580

超临界二氧化碳管道输送安全是碳捕集与封存技术(Carbon Capture and Storage,即CCS)的一个重要环节。当超临界管道压力过高时,一般采用节流方式泄放管内高压,节流过程产生的温降可以根据绝热假设进行预测。根据绝热假设及能量守恒关系... 详细信息

超临界二氧化碳管道输送安全是碳捕集与封存技术(Carbon Capture and Storage,即CCS)的一个重要环节。当超临界管道压力过高时,一般采用节流方式泄放管内高压,节流过程产生的温降可以根据绝热假设进行预测。根据绝热假设及能量守恒关系,通过求解临界节流过程中出口速度与音速的关系式,建立临界节流比与绝热指数关系;烟气二氧化碳中含有杂质,会影响节流过程中产生的温降,根据伯努利方程及等温焓差迭代方法计算节流温降,并依据二元交互作用系数混合规则分析超临界二氧化碳管道中杂质对节流温降的影响。研究结果表明:当二氧化碳中含有的杂质为二氧化硫时,有助于提高节流后的温度,并降低发生干冰堵塞的可能,然而当杂质为氮气时则会进一步降低节流后的温度。通过实例分析给出烟气二氧化碳节流具体操作建议:当采用多级节流时,较高的初始温度可以防止放空管出口处形成干冰。

关键词：碳捕集与封存二氧化碳管道输送杂质节流过程

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语文阅读教学有效问题的本质特征

课程．教材．教法 2014年第8期34卷 51-57页

作者：代顺丽王荣生上海师范大学教育学院上海200234 上海师范大学学科教育研究所上海200234

语文阅读教学有效问题的本质特征有四个:促进学生的理解;关注重要的教学内容;使学生参与多种认知水平的互动;问题的措辞简明清晰。这四个特征既是对阅读教学有效问题的描述,又是判断阅读教学问题是否有效的分析框架,还是教师设计有效问... 详细信息

语文阅读教学有效问题的本质特征有四个:促进学生的理解;关注重要的教学内容;使学生参与多种认知水平的互动;问题的措辞简明清晰。这四个特征既是对阅读教学有效问题的描述,又是判断阅读教学问题是否有效的分析框架,还是教师设计有效问题的基本操作程序。

关键词：阅读教学有效问题本质特征

Characterization of Magnetic Nanoparticles Modified by Ionic Liquid ODTImBr

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Characterization of Magnetic Nanoparticles Modified by Ionic...

长焦深连续立方相位板的飞秒激光加工与性能测试

第21届全国色谱学术报告会及仪器展览会

作者： Ruijuan duan Pengfei Wu Lu Liu shunli Fan Ruijun Jing Yuping Zhang Ying Li College of environment Henan Normal University School of chemistry and chemical engineering Henan Institute of science and technology

＜正＞A novel ionic liquid compound, 1-octadecyl-3-triethoxy propylsilyl-imidazolium bromide （ODTImBr）,was successfully synthesized and characterized. Subsequently ODTImBr was used as a functional monomer to modify magnetic nanoparticles （MNPs） via chemical bonding method. The prepared ODTIMBr and ODTIMBr-MNPs were confirmed with nuclear magnetic resonance （NMR）, fourier transform infrared

关键词： Ionic liquids Magnetic Solid Phase Extraction synthesis polycyclic aromatic hydrocarbons

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光学精密工程 2022年第17期30卷 2088-2093页

作者：李鹏举潘登刘顺利中国科学技术大学工程科学学院安徽合肥230031

传统的长焦深光束生成器件,诸如空间光调制器和正负透镜组合,存在光学元件尺寸较大、难以与微纳光学系统集成等问题,发展一种长焦深光束生成方法并制备一种结构简单、尺寸紧凑且成像质量良好的长焦深光束器件尤为重要。提出了一种利用... 详细信息

传统的长焦深光束生成器件,诸如空间光调制器和正负透镜组合,存在光学元件尺寸较大、难以与微纳光学系统集成等问题,发展一种长焦深光束生成方法并制备一种结构简单、尺寸紧凑且成像质量良好的长焦深光束器件尤为重要。提出了一种利用连续立方相位板调制来产生长焦深光束的方法,通过飞秒激光直写技术制备了高尺寸精度(直径为108μm,高1.1μm)的相位板,实现了可调控的焦距长度(50~150μm)和焦深(100~600μm),并且对相位板进行光学测试,展示了其长聚焦能力和成像能力。该器件可用于高性能集成光学系统、微纳光学制造等领域。

关键词：飞秒激光加工长焦深光束相位板光学仿真光学测试

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汽车发动机缸体的铸造技术分析

热加工工艺 2015年第1期44卷 9-10,14页

作者：冯顺利河南交通职业技术学院河南郑州450000

阐述了国内外汽车发动机缸体铸造技术的发展现状,重点分析了汽车发动机缸体材质、造型工艺、缸体的精度、精确的型芯及缸体气孔的防止。

关键词：汽车发动机缸体铸造技术

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省域科技信息资源和公益服务一体化建设研究

科技管理研究 2013年第15期33卷 68-71,97页

作者：刘顺利河北省科学技术情报研究院河北石家庄050021

介绍我国科技信息资源及其共建共享服务平台(系统)建设的现状,分析国家及地方科技文献(平台、系统)建设中存在的主要问题;以河北省为例,系统地提出加速省域科技信息资源及其公益服务一体化建设的战略目标、总体架构、重要原则、服务体... 详细信息

介绍我国科技信息资源及其共建共享服务平台(系统)建设的现状,分析国家及地方科技文献(平台、系统)建设中存在的主要问题;以河北省为例,系统地提出加速省域科技信息资源及其公益服务一体化建设的战略目标、总体架构、重要原则、服务体系、组织保障、办法措施,为省域(地方)科技创新提供重要支撑。

关键词：科技信息资源科技文献资源共建共享公益服务一体化科技创新省域(地方)

Response of Grassland Biomass to Soil Moisture in the Arid Mountainous Area of the Qilian Mountains

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Journal of Landscape Research 2018年第1期10卷 77-82页

作者： WANG shunli WANG Rongxin JING Wenmao ZHAO Weijun NIU Yun MA Jian ZHU Hong Academy of Water Resources Conservation Forest of Qilian Mountains of Gansu Province Zhangye Gansu 734000 China Northwest Research Institute of Mining and Metallurgy Baiying Gansu 730900 China

The Pailugou watershed of the Qilian Mountains in the arid region of northeast China was selected for research to analyze the species, height, and biomass in typical mountain grassland with an altitude of 2,700–3,000 m and measure soil moisture, so as to explore the seasonal characteristics of grassland biomass as altitude increases and the relationship between grassland biomass and soil moisture. The results showed that:(1) with a mean value of 135.36 g/m^2, grassland aboveground biomass showed a unimodal distribution from rise to decline as altitude increased, and reached its maximum of 176.79 ± 28.37 g/m^2 at an altitude of 2,900 m; with a mean value of 946.13 g/m^2, grassland underground biomass showed an uptrend as altitude increased, and reached its maximum of 1,301.19 ± 68.24 g/m^2 at an altitude of 3,000 m;(2) the difference between aboveground biomass and underground biomass in the grassland at different altitudes was significant;(3) values of root shoot ratio of the arid mountain grassland varied between 4.14–11.95;(4) values of soil moisture content of the arid mountain grassland varied between 9.23%–31.31%;(5) there was a positive correlation between aboveground biomass and underground biomass and the mean soil moisture content(p < 0.05), with a correlation coefficient of 0.778 4 and 0.784 3 respectively, soil layers with different moisture content made different contributions to grassland biomass, and moisture content in the soil layer where over-60-cm root systems were located was of significance to grassland biomass.

关键词： Mountain grassland Biomass Soil moisture Qilian Mountains

The preoperative neutrophil-to-lymphocyte ratio predicts the outcomes of patients with hepatocellular carcinoma and cirrhosis after hepatectomy

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Oncology and Translational Medicine 2015年第6期1卷 249-255页

作者： Yunpeng Hua Fei Ji Shunjun Fu shunli Shen Shaoqiang Li Lijian Liang Baogan Peng Department of Hepatic Surgery The First Affiliated Hospital of Sun Yat-sen University Department of Organ Transplant Center The First Affiliated Hospital of Sun Yat-sen University

Objective The aim of the study was to investigate the prognostic value of the preoperative peripheral neutrophil-to-lymphocyte ratio （NLR） in patients with hepatocellular cancer （HCC） and cirrhosis after hepa- tectomy. Methods This retrospective study included 321 patients with HCC who underwent resection. The NLR was calculated using the neutrophil and lymphocyte counts in routine preoperative blood tests. Receiver operating characteristic curve analysis was performed to select the most appropriate NLR cutoff value. The preoperative NLR, patient demographics, and clinical and pathological data, including disease-free survival （DFS） and overall survival （OS）, were analyzed. Results The NLR was correlated with alpha-fetoprotein levels （X2 = 5.876, P = 0.015）, tumor size （X2 = 32.046, P 〈 0.001）, portal vein tumor thrombus （PVTT; x2 = 4.930, P = 0.026）, tumor encapsulation （x2 = 7.243, P = 0.007）, and recurrence （x2 = 7.717, P = 0.005）. Multivariate analyses illustrated that the number of tumors, PVTT, tumor size, and the NLR were independent factors for predicting DFS and OS. in patients with HCC and cirrhosis, but not among those without cirrhosis, a larger NLR predicted poorer postoperative DFS and OS （both P 〈 0.001）. Conclusion As a simple, effective independent predictor for patients with HCC, the preoperative NLR plays an important role in accurately predicting the postoperative outcomes of patients with HCC and cir- rhosis, but not those of patients without cirrhosis.

关键词： hepatocellular cancer (HCC) neutrophil-to-lymphocyte ratio (NLR) pathnology prognosis