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Green Energy & Environment 2023年第2期8卷 509-518页

作者： Nan Chen Yu Zhou Songtao Cao Ruixin Wang Weizhou Jiao School of Chemical Engineering and Technology North University of ChinaTaiyuanShanxi030051China

The loading strategy of cocatalysts affects its activity exerting and atom utilization.Here,a novel strategy for loading precious metal(Pt)cocatalysts by means of ultrathin N-doped carbon layer is reported.The strategy is based on a pyrolysis process of predesigned N-containing polymers and Pt complexes on hard-template surface,during which Pt can be reduced by carbon from pyrolysis at high temperatures.Finally,the hollow TiO_(2)composite with stable and dispersed Pt on its inner surface was prepared.It shows an ultrahigh photocatalytic H_(2)production activity as high as 25.7 mmol h^(-1)g^(-1)with methanol as sacrificial regent,and displays an apparent quantum yield as 13.2%.The improved photocatalytic activity and stability can be attributed to the highly dispersed and ultrafine Pt nanoparticles,enhanced interaction between Pt-species and carbon support,fast photo-excited electron transport from the high graphitization degree of NC layers,ample oxygen vacancies/defects,as well as the manipulated local charge distribution of Pt/NC-layer configuration.Additionally,the universality of the proposed strategy was demonstrated by replacing metal sources(such as,Ru and Pd).This work presented a promising strategy for the design and development of novel photocatalysts,which shows a broad application prospect.

关键词： Ultrathin carbon layer Ultrafine Pt nanoparticles Loading Hollow photocatalyst Photocatalytic hydrogen production

Rigid–flexible hybrid surfaces for water-repelling and abrasionresisting

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Friction 2023年第4期11卷 635-646页

作者： songtao HU Weifeng HUANG Jinbang LI Tom REDDYHOFF Xiaobao cao Xi SHI Zhike PENG Andrew DEMELLO Daniele DINI State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084China School of Mechanical Engineering and Mechanics Ningbo UniversityNingbo 315211China Department of Mechanical Engineering Imperial College LondonLondon SW72AZUK Department of Chemistry and Applied Biosciences ETH ZurichZurich 8093Switzerland School of Mechanical Engineering Ningxia UniversityYinchuan 750021China

Droplets impacting solid superhydrophobic surfaces is appealing not only because of scientific interests but also for technological applications such as water-repelling.Recent studies have designed artificial surfaces in a rigid–flexible hybrid mode to combine asymmetric redistribution and structural oscillation water-repelling principles,resolving strict impacting positioning;however,this is limited by weak mechanical durability.Here we propose a rigid–flexible hybrid surface(RFS)design as a matrix of concave flexible trampolines barred by convex rigid stripes.Such a surface exhibits a 20.1%contact time reduction via the structural oscillation of flexible trampolines,and even to break through the theoretical inertial-capillary limit via the asymmetric redistribution induced by rigid stripes.Moreover,the surface is shown to retain the above water-repelling after 1,000 abrasion cycles against oilstones under a normal load as high as 0.2 N·mm−1.This is the first demonstration of RFSs for synchronous waterproof and wearproof,approaching real-world applications of liquid-repelling.

关键词： surface droplet impact hydrophobic abrasion

Applications of Light Stable Isotopes(C, O, H) in the Study of Sandstone Diagenesis: A Review

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Acta Geologica Sinica(English Edition) 2019年第1期93卷 213-226页

作者： XI Kelai cao Yingchang LIN Miruo LIU Keyu WU songtao YUAN Guanghui YANG Tian Key Laboratory of Deep Oil and Gas China University of Petroleum Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and Technology Research Institute of Petroleum Exploration & Development

This article reviews the applications of light stable isotope, including carbon, oxygen and hydrogen, in thestudies on origin and formation temperature of authigenic carbonate, quartz and clay minerals. Theoretical knowledge andanalytical methods for major light stable isotopes are introduced in detail. Negative and positive δ^(13)C values indicatesignificant differences on the origin of carbonate cements. The δ^(18)O value is an effective palaeotemperature scale forauthigenic minerals formation. Various fractionation equations between δ^(18)O and temperature are proposed for carbonatecements, quartz cements and clay minerals, whose merit and demerit, applicable conditions are clarified clearly. Clumpedisotope analysis can reconstruct the temperature of carbonate precipitation with no requirement on the δ^(18)O of initial waters,which makes temperature calculation of carbonate cements formation more convenient and accurate. Hydrogen and oxygenisotopes mainly reflect the origin of diagenetic fluid for clay mineral formation, providing reliable evidence for diageneticenvironment analysis. This work aims at helping researchers for better understanding the applications of light stable isotopein sandstone diagenesis.

关键词： light stable isotopes carbonate cements quartz cements clay minerals sandstone diagenesis

Circular RNA expression and the competitive endogenous RNA network in pathological,age-related macular degeneration events:A cross-platform normalization study

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生物医学研究杂志:英文版 2023年第5期37卷 367-381页

作者： Ruxu Sun Hongjing Zhu Ying Wang Jianan Wang Chao Jiang Qiuchen cao Yeran Zhang Yichen Zhang songtao Yuan Qinghuai Liu Department of Ophthalmology the First Affiliated Hospital of Nanjing Medical UniversityNanjing Medical UniversityNanjingJiangsu 211166China

Age-related macular degeneration(AMD)causes irreversible blindness in people aged over 50 worldwide.The dysfunction of the retinal pigment epithelium is the primary cause of atrophic AMD.In the current study,we used the ComBat and Training Distribution Matching method to integrate data obtained from the Gene Expression Omnibus database.We analyzed the integrated sequencing data by the Gene Set Enrichment Analysis.Peroxisome and tumor necrosis factor-α(TNF-α)signaling and nuclear factor kappa B(NF-κB)were among the top 10 pathways,and thus we selected them to construct AMD cell models to identify differentially expressed circular RNAs(circRNAs).We then constructed a competing endogenous RNA network,which is related to differentially expressed circRNAs.This network included seven circRNAs,15 microRNAs,and 82 mRNAs.The Kyoto Encyclopedia of Genes and Genomes analysis of mRNAs in this network showed that the hypoxia-inducible factor-1(HIF-1)signaling pathway was a common downstream event.The results of the current study may provide insights into the pathological processes of atrophic AMD.

关键词： age-related macular degeneration retinal pigment epithelium circular RNA bioinformatics analysis competing endogenous RNA

站城关系视角下的高铁站点地区空间发展应对——以河南省境内典型高铁站区为例

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城市发展研究 2018年第3期25卷 47-53页

作者：曹阳李松涛郑州大学建筑学院洛阳市城乡规划局

选取河南省境内已经开通站点且运行5年以上时间周期的14座高铁枢纽站区为研究样本,通过卫星高清图像获取研究站区空间发展的影像资料,采用扇形角度分析方法探讨了现阶段站区和城市建成区之间的空间形态关系,总结了不同关系层级的站区类... 详细信息

选取河南省境内已经开通站点且运行5年以上时间周期的14座高铁枢纽站区为研究样本,通过卫星高清图像获取研究站区空间发展的影像资料,采用扇形角度分析方法探讨了现阶段站区和城市建成区之间的空间形态关系,总结了不同关系层级的站区类型与空间增长特征,针对不同空间关系类型的站区提出相应的发展策略。研究的结论为:(1)站区空间扇形角度和站城空间关系的紧密程度呈正比;(2)依据站城空间关系特征可以将高铁站区划分为融合型、嵌入型和分离型三类站区;(3)从站区自身的角度阐述了不同形态关系类型之间相互转化的规律和趋势。

关键词：高铁站区扇形角度分析法站城空间关系转化

空间发育分析框架下的城市边缘型高铁站区修整策略

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规划师 2019年第19期35卷 45-53页

作者：曹阳李松涛郑州大学建筑学院洛阳市自然资源和规划局

城市边缘型高铁站区在空间演化过程中呈现出交通接驳不畅、功能开发不全和站点形象不显等问题,因此对其进行空间调整具有重要意义。文章以河南省境内 6 座边缘型高铁站区为研究案例,搭建边缘型高铁站区圈层空间发育分析的总体框架,依据... 详细信息

城市边缘型高铁站区在空间演化过程中呈现出交通接驳不畅、功能开发不全和站点形象不显等问题,因此对其进行空间调整具有重要意义。文章以河南省境内 6 座边缘型高铁站区为研究案例,搭建边缘型高铁站区圈层空间发育分析的总体框架,依据站区空间发育规律和现实问题,以存量修整为空间优化的总体思路,提出整合交通等基础设施、圈层空间系统分区和功能修补指引、在现有基础上修复特色空间风貌等修整策略,以期为现阶段高铁站区空间的合理利用提供有益的借鉴。

关键词：高铁站区空间发育修整

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高铁站区空间形态变化及其应对策略

规划师 2017年第12期33卷 80-86页

作者：曹阳李松涛郑州大学建筑学院洛阳市城乡规划局

以京广客运专线河南省境内7座地级城市的高铁站区为研究样本,通过实地调研和历年卫星高清图像获取站区空间逐年发展的第一手资料,构建高铁站区区域、区块划分模型,比较7座站区圈层空间增长的异同,依据各自站区空间形态变化的特征对7座... 详细信息

以京广客运专线河南省境内7座地级城市的高铁站区为研究样本,通过实地调研和历年卫星高清图像获取站区空间逐年发展的第一手资料,构建高铁站区区域、区块划分模型,比较7座站区圈层空间增长的异同,依据各自站区空间形态变化的特征对7座站区进行分类,总结站区和既有城市的空间形态关系,并从站点与既有城市的有效连接和现阶段站区自身功能限制两个层面探讨站区空间形态变化存在差异的影响因素,提出站区空间发展的应对策略。

关键词：高铁站区空间形态京广客运专线

Multisourced CO_(2) Injection in Fan Delta Conglomerates and Its Influence on Reservoir Quality: Evidence from Carbonate Cements of the Baikouquan Formation of Mahu Sag, Junggar Basin, Northwestern China

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Journal of Earth Science 2021年第4期32卷 901-918页

作者： Ning Zhu Yingchang cao Kelai Xi songtao Wu Rukai Zhu Miaomiao Yan Shunkang Ning School of Geosciences China University of PetroleumQingdao 266580China Research Institute of Petroleum Exploration and Development CNPCBeijing 100083China Key Laboratory of Oil and Gas Reservoirs CNPCBeijing 100083China National Energy Tight Oil and Gas R&D Center Beijing 100083China Wenliu Oil Recovery Plant of Zhongyuan Oilfield Branch Puyang 457000China

Sandy-conglomerate reservoir has gradually become a major target of oil and gas exploration.Complex diagenetic process and diagenetic fluid play a significant role in affecting reservoir heterogeneity.Carbonate cements form at various stages of the diagenesis process and record various geological fluid information.Recently,one-billion-ton sandy conglomerate oil field was exposed in Triassic Baikouquan Formation,Mahu sag,Junggar Basin.Therefore,an integrated study applying casting thin sections,cathodeluminescence,fluorescence,carbon and oxygen stable isotopes,electronic probe microanalysis and aqueous fluid inclusions measurements was performed in order to identify the types of carbonate mineral and its representative diagenetic environment and discuss the influences of different CO_(2) injections on reservoir quality.The main findings are as follows:The reservoir is mainly composed of 70.33%conglomerate and 16.06%coarse-grained sandstone.They are characterized by low compositional maturity and abundant lithic debris.Four types carbonate cements are identified according to the petrological and geochemical characteristics,including two types of Mn-rich calcite,ferroan calcite,siderite and dawsonite.They display an unusual broad spectrum ofδ^(13)C values(-54.99‰to+8.8‰),suggesting both organic and inorganic CO_(2) injections.The δ^(13)C values of siderite are close to 0,and its formation is related to meteoric water.Theδ^(13)C values of ferroan calcite and the occurrence of dawsonite indicate the trace of inorganic mantle-derived magmatic fluids.Theδ^(13)C values and trace elements of Mn-rich calcite record the information of hydrocarbon-bearing fluids.The fluid inclusions measurement data and reservoir properties and oil-test data show that the oil content of reservoir is not only affected by the formation time of different cements,but also by the relative content of dissolution and cementation.For these reservoirs altered by carbonate cements,it does not cause poor oil-bearing due to blockage of secondary mineral

关键词： carbonate cement CO_(2)fluid carbon and oxygen isotope reservoir Mahu sag Junggar Basin

上市银行业务风险控制研究——基于普惠金融视角

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区域金融研究 2022年第1期 51-58页

作者：徐松涛曹源芳南京审计大学金融学院江苏南京211815

中小微企业作为我国社会经济的重要组成部分,一直以来都面临融资难、融资贵等问题,加之我国社会经济发展不平衡,偏远地区居民享受到的金融服务十分有限。本文以2010~2020年18家上市银行经营数据为样本,实证分析普惠金融业务对上市银行... 详细信息

中小微企业作为我国社会经济的重要组成部分,一直以来都面临融资难、融资贵等问题,加之我国社会经济发展不平衡,偏远地区居民享受到的金融服务十分有限。本文以2010~2020年18家上市银行经营数据为样本,实证分析普惠金融业务对上市银行业务风险的影响机理。实证结果表明,国有银行能够利用自身实力,发挥规模效益,降低自身整体风险,而在风险管理效率方面,股份制银行及城商行要优于国有银行。但是,由于业务发展不成熟、缺少专业人才队伍等因素制约,上市银行普惠金融业务风险管理能力仍有待提升。对此,本文提出提高自身盈利与经营能力、培养专业人才、严把业务质量关等建议,以期为金融机构更好服务实体经济提供理论基础。

关键词：商业银行风险控制普惠金融

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高铁站点地区空间演化与规划应对

城市规划 2020年第11期44卷 88-96页

作者：曹阳于立李松涛郑州大学建筑学院英国卡迪夫大学中英生态城市与可持续发展研究中心英国卡迪夫大学地理与规划学院合肥工业大学洛阳市自然资源和规划局

文章从多个高铁站点地区空间演化特征、影响机制和站点地区空间应对三方面展开研究:⑴运用空间模型研究,准确辨析每个站区的空间形态、功能结构、圈层空间功能分布和历年空间增长,提炼我国高铁站区空间演化的一般规律;⑵从城市能级、站... 详细信息

文章从多个高铁站点地区空间演化特征、影响机制和站点地区空间应对三方面展开研究:⑴运用空间模型研究,准确辨析每个站区的空间形态、功能结构、圈层空间功能分布和历年空间增长,提炼我国高铁站区空间演化的一般规律;⑵从城市能级、站城空间关系和站点周边地区三方面提出高铁站区空间影响机制;⑶提出站区空间的规划应对。上述研究内容遵循“站区演化特征——影响因素——空间应对”的逻辑主线,以站区空间改进与优化为目标导向。无论对于推动高铁站区空间系统的健康发展还是提升设站城市在高铁网络中的综合竞争力都具有重要意义。

关键词：高铁站区空间演化空间应对