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Man trapped on bridge pier for 4 days rescued

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Changjiang Weekly 2022年第19期 6-6页

作者： xie binglin 不详

Recently,a man who came to work in Wuhan from Qiannan,Guizhou province accidentally slipped into the Yangtze River,and floated down from the Hannan section to the Zhuankou Yangtze River Bridge,where he grabbed onto a bridge *** about 3 *** May 4,while ***,a member of the Yangtze River fishing ban team in Hongshan District,was patrolling near the bridge,he noticed a figure on the pier from a distance.

关键词： Yangtze bridge Guizhou

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短线法节段梁预制拼装过程控制技术研究

铁道科学与工程学报 2020年第6期17卷 1453-1461页

作者：解兵林余晓琳胡雨贾布裕陈宇轩华南理工大学土木与交通学院广东广州510640 珠海洪鹤大桥有限公司广东珠海519000

针对桥梁短线法节段梁预制及拼装复杂施工过程的高精度控制问题,研究节段梁的施工理论线形、坐标转换及匹配节段定位、预制误差修正等关键技术,提出节段拼装线形偏差预测直接法、斜率法及其可视化方法,以及提高首块节段安装精度和多种... 详细信息

针对桥梁短线法节段梁预制及拼装复杂施工过程的高精度控制问题,研究节段梁的施工理论线形、坐标转换及匹配节段定位、预制误差修正等关键技术,提出节段拼装线形偏差预测直接法、斜率法及其可视化方法,以及提高首块节段安装精度和多种指导施工的纠偏措施。以某跨海大桥引桥为实际工程背景,对其节段梁预制及拼装全过程进行精细的计算模拟,分析计算节段梁预制和拼装线形的主要影响因素。基于MATLAB自主研发的短线节段预制拼装(SL-P&A)控制系统对其施工全过程进行控制。通过与实测数据进行对比分析,结果表明,本文提出的短线法节段梁预制拼装过程控制技术很好地实现了对节段梁预制线形与拼装线形的控制,实现了施工过程中预制阶段与拼装阶段的衔接以及施工数据与监控数据的互通,大大加强了数据管理的便利性以及线形控制的实时可视化。

关键词：短线法预制拼装误差调整线形控制

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开平市青少年视功能状况调查研究

中国医药科学 2018年第6期8卷 135-138页

作者：徐宇明项道满龚小斌谢炳林王身东余善华广东省开平市妇幼保健计划生育服务中心广东开平529300

目的调查开平市青少年的视力状况,总结近视相关防控措施。方法采用简单随机抽样法选取在我院视力保健科三个体检小组进行视力检查的全市幼儿园及中小学生共76608人作为研究对象,统计分析开平市青少年的视力状况。结果视力不良总发生率为... 详细信息

目的调查开平市青少年的视力状况,总结近视相关防控措施。方法采用简单随机抽样法选取在我院视力保健科三个体检小组进行视力检查的全市幼儿园及中小学生共76608人作为研究对象,统计分析开平市青少年的视力状况。结果视力不良总发生率为37.02%,初中学生的视力不良发生率显著高于小学和幼儿园学生,小学生的视力不良发生率又显著高于幼儿园学生(P<0.05)。幼儿园学生中,幼儿班的视力不良率最低,学前班的视力不良率最高。小学六年级学生的视力不良检出率明显高于其他年级(P<0.05)。小学年级越高,中重度视力不良比例越高。各所中学的重度视力不良发生率均显著高于轻度及中度视力不良(P<0.05)。结论开平市青少年普遍存在着视力不良情况,医院应积极采取各项近视防控措施,以改善青少年的视力状况。

关键词：青少年开平市视力不良近视

One-pot synthesis of 2,5-bis(hydroxymethyl)furan from biomass derived 5-(chloromethyl)furfural in high yield

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Journal of Energy Chemistry 2023年第1期76卷 421-428,I0011页

作者： binglin Chen Yunchao Feng Sen Ma Weizhen xie Guihua Yan Zheng Li Jonathan Sperry Shuliang Yang Xing Tang Yong Sun Lu Lin Xianhai Zeng College of Energy Xiamen UniversityXiamen 361102FujianChina Fujian Engineering and Research Centre of Clean and High-valued Technologies for Biomass Xiamen Key Laboratory of Clean and High-valued Utilization for BiomassXiamen 361102FujianChina Centre for Green Chemical Science University of AucklandAuckland 1142New Zealand

5-(Chloromethyl)furfural(CMF),as a new platform molecular,has become a hot topic in the field of ***,the one-pot conversion of CMF to 2,5-bis(hydroxymethyl)furan(BHMF)in the water phase was demonstrated for the first time.A 91%BHMF yield was obtained over Ru/Cu Oxcatalyst,and BHMF was mainly produced by the consecutive hydrolysis and hydrogenation of CMF with 5-hydroxymethylfurfural(HMF)as an *** studies revealed that the conversion of HMF to BHMF was the rate-determining ***,the characterizations and density functional theory(DFT)calculations further revealed the lower electron density of Ru NPs in Ru/Cu Oxcatalyst,resulting in a larger adsorption energy and a smaller free energy difference for the formation of *** present findings offered a new pathway for biomass-derived diol production through CMF as a potential source.

关键词： 2 5-Bis(hydroxymethyl)furan Hydrolysis Hydrogenation Biomass conversion Heterogeneous catalysis

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人体上臂组织及肘关节的三维数字化构建

中国骨科临床与基础研究杂志 2012年第1期4卷 42-47页

作者：解秉霖黄潮桐李敬矿宋江涛鲍苏苏邱文超李忠华钟世镇广东医学院研究生院广东湛江524023 广东医学院附属厚街医院广东东莞523945 华南师范大学广州510631 南方医科大学广州510515

目的运用计算机三维重建技术构建人体上臂组织及肘关节结构和形态的数字化模型。方法男性成人新鲜尸体上肢标本2例,常温下灌注显影剂后行CT扫描,将数据导入Mimics13.1、MIPAV、FREEFORM软件中,分别对上臂皮肤、骨骼、血管及肘各关节进... 详细信息

目的运用计算机三维重建技术构建人体上臂组织及肘关节结构和形态的数字化模型。方法男性成人新鲜尸体上肢标本2例,常温下灌注显影剂后行CT扫描,将数据导入Mimics13.1、MIPAV、FREEFORM软件中,分别对上臂皮肤、骨骼、血管及肘各关节进行三维构建。结果上臂组织及肘关节的三维数字化重建图像清晰、真实、动态地显示上臂皮肤、骨骼、血管及肘部各关节的外观及毗邻关系。结论数字化上臂组织及肘部各关节三维可视化仿真模型的构建,为骨科临床与教学提供了数字化三维形态学依据。

关键词：上臂皮肤血管骨骼肘关节体层摄影术,X线计算机图像处理,计算机辅助

Base-free oxidative esterification of 5-hydroxymethylfurfural to furan-2,5-dimethylcarboxylate over n-doped carbon-supported Co/Fe bimetallic catalyst under batch-operation or continuous-flow conditions

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Journal of Energy Chemistry 2022年第12期75卷 95-108,I0004页

作者： Weizhen xie binglin Chen Wenlong Jia Huai Liu Zheng Li Shuliang Yang Xing Tang Xianhai Zeng Yong Sun Xixian Ke Tianyuan Li Huayu Fang Lu Lin Xiamen Key Laboratory of Clean and High-valued Applications for Biomass Fujian Engineering and Research Center of Clean and High-valued Technologies for BiomassCollege of EnergyXiamen UniversityXiamen 361102FujianChina BiomassChem Group Faculty of Chemical EngineeringKunming University of Science and TechnologyKunming 650500YunnanChina Key Lab for Sport Shoes Upper Materials of Fujian Province Fujian Engineering and Research Center for New Functional Fiber Materials(Fujian Huafeng New Material Co.Ltd.Putian Dakai New Material Co.Ltd.)Putian 351144FujianChina

Developing an efficient and easily available catalyst for the selective conversion of biomass-derived 5-hydroxymethylfurfural(HMF)into furan-2,5-dimethylcarboxylate(FDMC),a valuable biomass-based monomer,remains a high demand but formidable ***,a facile strategy for the synthesis of N-doped carbon-supported Co/Fe bimetallic catalyst(CoFe-NC)was developed,which provided an outstanding FDMC yield of 93%in a batch reactor(base-free,80℃,2 bar O_(2),4 h).Interestingly,CoFe-NC also gave a high FDMC yield of 91%under continuous-flow conditions for 80 h(5 bar O_(2),80℃,GHSV 1320 h^(-1),LHSV 0.6 h^(-1),base-free).Notably,it is the first time that a non-noble catalyst gave such a high FDMC yield under continuous-flow *** introduction of Fe could greatly improve both the electron intensity of Co-N_(x)species and basicity of the catalyst,which endowed CoFe-NC with improved O_(2)activation capacity and enhanced dehydrogenation activity for the oxidation-esterification of *** work delineates the efficient strategy on the construction of N-doped carbon-supported non-noble catalyst,which might open a new avenue for developing highly efficient catalyst for FDMC production.

关键词： 5-Hydroxymethylfurfural Furan-2,5-dimethylcarboxylate Oxidation-esterification Catalysis Co-N_(x)sites

STUDY　ON　IMMOBILIZED　PORCINE　PANCREATIC　LIPASE　CATALYZING　TRANSESTERIFICATION　BETWEEN　METHYL－BUTYRATE　AND　1－BUTANOL　IN　NONAQUEOUS　SYSTEMS

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Chinese Journal of Reactive Polymers 1996年第1期5卷 12-18页

作者： xie Zhidong Lu Xianyu Bao Fengwei He binglin Institute of Polymer Chemistry Nankai Universitry Tianjin 300071 China

Transesterification between methyl-butyrate and 1-butanol in nonaqueous systems was catalyzed by porcine pancreatic lipase which was immobilized on cross- linked polystyrene. Organic solvents, substrate concentration, contents of water and other parameters which affect the immobilized enzyme activity were studied. Lipase immobilized on hydrophobic crosslinked polystyrene can reduce its diffusion limit in the reaction. It was found that the activity of immobilized lipase in organic systems was two times as high as that of free lipase.

关键词： Porcine Pancreatic Lipase Transesterification Immobilized Enzyme Nonaqueous Systems

ADSORPTION OF CAFFEINE BY HYDROGEN DONATING ADSORBENTS BASED ON HYDROGEN BONDING

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Chinese Journal of Reactive Polymers 2000年第1期9卷 10-16页

作者： XU Mancai SHI Zuoqing xie Xianglin XU Mingcheng ZENG Ying LIANG Liyan HE binglin Department of Chemistry Hunan Normal UniversityChangsha 410081China The State Key Laboratory of Functional Polymeric Materials for Adsorption and Separation Institute of Polymer Chemistry.Nankai UniversityTianjin 300071.China

The adsorption isotherms of caffeine from aqueous solution onto three hydrogen donating adsorbents - hydroxypolystyrene. polystyrene-azo-pyrogallol, and D72 resin-were measured. The adsorption enthalpies calculated from the isotherms according to the Clausius-Clapeyron equation were-24~ -36kJ/mol, -32~ -37kJ/mol. and -19~ -24kJ/mol respectively These values implied that the absorption processes were based on hydrogen bonding. Furthermore, the mechanism of the adsorption of caffeine onto D72 resin was studied by IR spectra and the small molecular model experiments. and the results showed that the adsorption of caffeine onto hydrogen donating adsorbents was based on hydrogen bonding.

关键词： Hydrogen-bonding adsorbent Hydroxypolystyrene. Polystyrene-azo-pyrogallol. D72 resin Caffeine Adsorption

Toward Earth system modeling with resolved clouds and ocean submesoscales on heterogeneous many-core HPCs

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National Science Review 2023年第6期10卷 153-167页

作者： Shaoqing Zhang Shiming Xu Haohuan Fu Lixin Wu Zhao Liu Yang Gao Chun Zhao Wubing Wan Lingfeng Wan Haitian Lu Chenling Li Yanfei Liu Xiaojing Lv Jiayu xie Yangyang Yu Jun Gu Xuantong Wang Yan Zhang Chenhui Ning Yunlong Fei Xiuwen Guo Zhaoying Wang Xue Wang Zhenming Wang binglin Qu Mingkui Li Haoran Zhao Yingjing Jiang Guang Yang Lv Lu Hong Wang Hong An Xin Zhang Yu Zhang Wentao Ma Fujiang Yu Jing Xu Xiaopei Lin Xueshun Shen Key Laboratory of Physical Oceanography Ministry of Education/Institute for Advanced Ocean Study/Frontiers Science Center for Deep Ocean Multispheres and Earth System (DOMES) College of Oceanic and Atmospheric Sciences Ocean University of China Laoshan Laboratory Ministry of Education Key Lab for Earth System Modeling and Department of Earth System Science Tsinghua University National Supercomputing Center in Wuxi Frontiers Science Center for Deep Ocean Multispheres and Earth System and Key Laboratory of Marine Environment and Ecology Ministry of Education Ocean University of China Deep Space Exploration Laboratory/School of Earth and Space Sciences University of Science and Technology of China School of Computer Science and Technology University of Science and Technology of China CEAKJ ADPRHexa Inc. National Marine Environmental Forecasting Center State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography Ministry of Natural Resources Chinese Academy of Meteorological Sciences The Center of Earth System Modeling and Prediction China Meteorological Administration

With the aid of the newly developed ’Sunway’ heterogeneous-architecture supercomputer,which has world-leading HPC(high-performance computer) capability,a series of high-resolution coupled Earth system models(SW-HRESMs) with up to 5 km of atmosphere and 3 km of ocean have been *** models can meet the needs of multiscale interaction studies with different computational *** we describe the progress of SW-HRESMs development,with an overview of the major advancements made by the international Earth science community in *** also show the preliminary results of SW-HRESMs with regard to capturing major weather-climate extremes in the atmosphere and ocean,stressing the importance of permitted clouds and ocean submesoscale eddies in modeling tropical cyclones and eddy-mean flow interactions,and paving the way for further model development to resolve finer scales with even higher resolution and more realistic ***,in addition to increasing model resolution,the development procedure for a non-hydrostatic cloud and ocean submesoscale resolved ESM is discusse d,laying out the major scientific directions of such a huge modeling advancement.

关键词： high-resolution Earth system models heterogeneous supercomputer cloud and submesoscale resolving weather-climate extremes finer cross-scale interactions