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Nano-Au-decorated hierarchical porous cobalt sulfide derived from ZIF-67 toward optimized oxygen evolution catalysis:Important roles of microstructures and electronic modulation

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Carbon Energy 2024年第5期6卷 1-14页

作者： Hongyu Gong Guanliang Sun wenhua Shi Dongwei Li Xiangjun Zheng Huan Shi Xiu liang Ruizhi Yang Changzhou Yuan Department of New Energy Materials School of Environmental and Chemical EngineeringJiangsu University of Science and TechnologyZhenjiangJiangsuChina Advanced Materials Institute Qilu University of Technology(Shandong Academy of Sciences)JinanShandongChina Shandong Saikesaisi Hydrogen Energy Co. Ltd.JinanShandongChina Department of Materials Science and Engineering School of Materials Science&EngineeringUniversity of JinanJinanShandongChina Department of New Energy Science and Engineering College of EnergySoochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhouJiangsuChina

Enhancing both the number of active sites available and the intrinsic activity of Co-based electrocatalysts simultaneously is a desirable ***,a ZIF-67-derived hierarchical porous cobalt sulfide decorated by Au nanoparticles(NPs)(denoted as HP-Au@CoxSy@ZIF-67)hybrid is synthesized by low-temperature sulfuration *** well-defined macroporous-mesoporous-microporous structure is obtained based on the combination of polystyrene spheres,as-formed CoxSy nanosheets,and ZIF-67 *** novel three-dimensional hierarchical structure significantly enlarges the three-phase interfaces,accelerating the mass transfer and exposing the active centers for oxygen evolution *** electronic structure of Co is modulated by Au through charge transfer,and a series of experiments,together with theoretical analysis,is performed to ascertain the electronic modulation of Co by ***,HP-Au@CoxSy@ZIF-67 catalysts with different amounts of Au were synthesized,wherein Au and NaBH4 reductant result in an interesting“competition effect”to regulate the relative ratio of Co^(2+)/Co^(3+),and moderate Au assists the electrochemical performance to reach the highest ***,the optimized HP-Au@CoxSy@ZIF-67 exhibits a low overpotential of 340 mV at 10 mA cm^(-2)and a Tafel slope of 42 mV dec-1 for OER in 0.1 M aqueous KOH,enabling efficient water splitting and Zn-air battery *** work here highlights the pivotal roles of both microstructural and electronic modulation in enhancing electrocatalytic activity and presents a feasible strategy for designing and optimizing advanced electrocatalysts.

关键词： Au nanoparticles cobalt sulfide electronic modulation hierarchical porous structure oxygen evolution reaction

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Additive Effects of QTLs/Genes on Rice Grain Size Traits Revealed by Genetic Comparisons

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Rice science 2023年第3期30卷 171-175,I0002-I0013页

作者： HE Lei liang wenhua HU Jiang ZHAO Chunfang YAO Shu CHEN Tao ZHU Zhen ZHAO Qingyong LU Kai ZHAO Ling ZHOU Lihui QIAN Qian WANG Cailin ZHANG Yadong Institute of Food Crops Jiangsu Academy of Agricultural Science/Key Laboratory of Jiangsu Province for Agrobiology/Key Laboratory of Germplasm Innovation in Downstream of Huaihe River(Nanjing)Ministry of Agriculture and Rural AffairsNanjing 210014China East China Branch of National Center of Technology Innovation for Saline-Alkali Tolerant Rice Nanjing 210014China State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 311400China

Grain size is controlled by many QTLs and/or *** intensive study,the genetic interactions between these QTLs/genes remain largely *** previously found that the japonica large-grain rice cultivar TD70 with 1000-grain weight of 68.6 g carries superior alleles at the loci GW2,GS3,qGL3,GS5 and GW8,all of which are known to control grain size,while the indica rice variety Kasalath with 1000-grain weight of 19.1 g has normal alleles at these loci.

关键词： cultivar alleles Traits

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Electronic structure and chemical reaction of Ca deposition on regioregular poly(3-hexylthiophene) surfaces

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Chinese Science Bulletin 2009年第11期54卷 1978-1982页

作者： ZHAO Wei GUO YuXian FENG XueFei ZHANG liang ZHANG wenhua ZHU JunFa National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230029 China

Conjugated polymer, regioregular poly(3-hexylthiophene) (rr-P3HT), films were prepared by spin-coating the rr-P3HT chloroform solution onto clean silicon wafer surfaces. The chemical re-action and electronic structure of Ca deposition on rr-P3HT surfaces were in situ investigated by synchrotron radiation photoemission spectroscopy (SRPES) and X-ray photoemission spectros-copy (XPS). Upon Ca deposition, Ca-induced band bending of rr-P3HT is observed. In addition, Ca atoms preferentially react with S atoms of rr-P3HT. No obvious reaction between Ca and C atoms can be found. Through the investigation of the evolution of valence band spectra and secondary electron cut-off of rr-P3HT during the process of Ca deposition, an energy level alignment diagram at the Ca/rr-P3HT interface is derived.

关键词：化学反应表面清洁电子结构钙沉积 X射线光电子光谱同步辐射光电子能谱 X射线光电子能谱共轭聚合物

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英语电话会话的体裁特征分析

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外语教学 2022年第2期43卷 50-55页

作者：梁文花刘萍曲阜师范大学外国语学院

本研究运用“体裁结构潜势”理论,采用数据驱动的方法,对40篇选自互联网电话会话进行体裁分析。结果表明:1)英语电话会话作为一种有步骤、有目的的双边口语交际活动,体裁结构清晰,共有13个成分,包括6个必要成分和7个可选成分;2)其交际... 详细信息

本研究运用“体裁结构潜势”理论,采用数据驱动的方法,对40篇选自互联网电话会话进行体裁分析。结果表明:1)英语电话会话作为一种有步骤、有目的的双边口语交际活动,体裁结构清晰,共有13个成分,包括6个必要成分和7个可选成分;2)其交际功能明确,开端部分具有寒暄功能,本体具有交流功能,结束具有认可功能;3)其语言手段稳定,即陈述视角从第一人称转为第三人称,词汇以简短动词、动词短语和有强烈情感色彩的形容词为主,句法以简单句、省略句、疑问句居多等。本研究不仅揭示了完整的电话会话结构流程,还发现了功能图式和多样的语言表达资源,为教师培养学生英语在线交流能力提供新的思路。

关键词：英语电话会话体裁结构潜势结构功能语言手段

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二语写作文本流利度与语篇衔接的多维交互模式

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外语教学与研究 2022年第4期54卷 557-568,639,640页

作者：张超梁文花曲阜师范大学

二语写作文本流利度和语篇衔接是二语写作能力发展的重要维度,然而已有研究较少关注两者间的交互。本研究以60名英语专业二年级学生一学年14次任务所产出的840篇作文为语料,通过Coh-Metrix软件对文本流利度和语篇衔接进行指标计算和编码... 详细信息

二语写作文本流利度和语篇衔接是二语写作能力发展的重要维度,然而已有研究较少关注两者间的交互。本研究以60名英语专业二年级学生一学年14次任务所产出的840篇作文为语料,通过Coh-Metrix软件对文本流利度和语篇衔接进行指标计算和编码,基于相关分析确立二语写作文本流利度与语篇衔接的多维交互关系,并结合个案分析揭示其多维交互模式特征。结果表明:1)二语写作文本流利度与语篇衔接总体呈协同发展态势;2)二语写作文本流利度与语篇衔接发展之间存在不稳定型、协同型和竞争型三类交互模式。研究结合复杂理论对二语写作文本流利度与语篇衔接的多维交互关系及模式进行了讨论。

关键词：文本流利度语篇衔接多维发展交互模式二语写作

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The impact of postoperative EGFR-TKIs treatment on residual GGO lesions after resection for lung cancer

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Signal Transduction and Targeted Therapy 2021年第3期6卷 599-601页

作者： Bo Cheng Caichen Li Yi Zhao Jianfu Li Shan Xiong Hengrui liang Zhichao Liu Wenchuang Zeng wenhua liang Jianxing He Department of Thoracic Surgery and Oncology the First Affiliated Hospital of Guangzhou Medical UniversityState Key Laboratory of Respiratory Disease&National Clinical Research Center for Respiratory DiseaseGuangzhou 510120China Department of Thoracic Surgery Shanghai Chest HospitalShanghai Jiao Tong UniversityShanghaiChina

Dear Editor,In recent years,the incidence of multifocal lung cancer is increasing,called multiple primary lung cancer(MPLC).Synchronous MPLC(sMPLC)is defined by multiple malignant lesions occurring at the same time.1 In clinical practice,it was always extremely difficult to remove all lesions simultaneously for sMPLC ***,unresected GGO lesions after primary surgery frequently caught the risk of progression.

关键词： lesions lung cancer

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Sufficient Conditions for Amalgamated 3-Manifolds to be ∂-Irreducible

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Chinese Annals of Mathematics,Series B 2024年第2期45卷 161-172页

作者： Bing FANG Fengchun LEI liang liang School of Mathematical Sciences Dalian University of TechnologyDalian 116024LiaoningChina School of Mathematics Liaoning Normal UniversityDalian 116029LiaoningChina

In this paper,the authors give some sufficient conditions for an amalgamated 3-manifold along a compact connected surface F with boundary to be ∂-irreducible in terms of distances between some kinds of vertex subsets ... 详细信息

关键词： ∂-Irreducibility Irreducibility Amalgamated 3-manifold Curve complex Arc complex

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Reliability Assessment of a New General Matching Composed Network

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China Communications 2024年第2期21卷 245-257页

作者： Zhengyuan liang Junbin liang Guoxuan Zhong Guangxi Key Laboratory of Multimedia Communications and Network Technology School of ComputerElectronics and InformationGuangxi UniversityNanning 530004China Jiangxi Engineering Laboratory of IoT Technologies for Crop Growth Ji’an 343000China

The reliability of a network is an important indicator for maintaining communication and ensuring its stable operation. Therefore, the assessment of reliability in underlying interconnection networks has become an increasingly important research issue. However, at present, the reliability assessment of many interconnected networks is not yet accurate,which inevitably weakens their fault tolerance and diagnostic capabilities. To improve network reliability,researchers have proposed various methods and strategies for precise assessment. This paper introduces a novel family of interconnection networks called general matching composed networks(gMCNs), which is based on the common characteristics of network topology structure. After analyzing the topological properties of gMCNs, we establish a relationship between super connectivity and conditional diagnosability of gMCNs. Furthermore, we assess the reliability of g MCNs, and determine the conditional diagnosability of many interconnection networks.

关键词： conditional diagnosability interconnection networks network reliability super connectivity

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我国大学英语混合式教学研究的历时与共时特征

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外语电化教学 2022年第2期 32-38页

作者：梁文花相孟薇张超曲阜师范大学外国语学院山东省曲阜市273165

“互联网+教育”日益受到国内教育界的重视。本研究通过文献溯源、文本细读和归纳分析,对国内2006—2020年大学英语混合式教学模式研究进行梳理,展现其历时与共时特征。研究发现:(1)相关研究成果发表数量整体上呈先平稳发展再迅猛增长... 详细信息

“互联网+教育”日益受到国内教育界的重视。本研究通过文献溯源、文本细读和归纳分析,对国内2006—2020年大学英语混合式教学模式研究进行梳理,展现其历时与共时特征。研究发现:(1)相关研究成果发表数量整体上呈先平稳发展再迅猛增长的趋势,研究热点呈现从“泛化”到“具体”再到“拓展”的历时特征。(2)质化研究多于量化研究,但二者混合的方法占比最高;研究主要以学生为对象,较少关注教师群体;研究者多在正式课堂开展实证性研究,在非正式课堂环境下的研究相对较少;研究主题偏重宏观的混合模式实践应用,鲜少从微观视角进行相关影响因素分析。

关键词：大学英语混合式教学历时与共时特征

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Analysis and experimental study on resistance-increasing behavior of composite high efficiency autonomous inflow control device

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Petroleum Science 2024年第2期21卷 1290-1304页

作者： liang-liang Dong Yu-Lin Zhang School of Mechatronic Engineering Southwest Petroleum UniversityChengdu610500SichuanChina State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu610500SichuanChina Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan ProvinceChengdu610500SichuanChina

Bottom water coning is the main reason to reduce the recovery of horizontal bottom water reservoir. By water coning, we mean the oil-water interface changes from a horizontal state to a mound-shaped cone and breaks through to the wellbore. Autonomous inflow control device(AICD) is an important instrument maintain normal production after bottom water coning, however, the resistance increasing ability of the swirl type AICD is insufficient at present, which seriously affects the water control effect. Aiming this problem, this paper designs a multi-stage resistance-increasing and composite type AICD. The separation mechanism of oil-water two phases in this structure, the resistance form of oil-water single phase and the resistance-increasing principle of water phase are analyzed. Establishing the dual-phase multi-stage separation and resistance-increasing model, and verified by measuring the throttling pressure drop and oil-water volume fraction of the AICD, it is found that the composite type AICD has the effect of ICD and AICD at the same time, which can balance the production rate of each well section at the initial stage of production, delay the occurrence of bottom water coning. In the middle and later stages of production, water-blocking can be effectively increased to achieve water control and stable *** structural sensitivity analysis, the influence law of various structural parameters on the water control performance of composite AICD was obtained. The simulation calculation results show that,compared with the existing swirl type AICD, composite AICD has higher sensitivity to moisture content,the water phase throttling pressure drop is increased by 4.5 times on average. The composite AICD is suitable for the entire stage of horizontal well production.

关键词： Water control Flow separation Flow resistance-increasing AICD device Simulation and experiment

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