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Advantageous properties of halide perovskite quantum dots towards energy-efficient sustainable applications

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Green Energy & Environment 2024年第6期9卷 949-965页

作者： Qian Zhao Shuo Wang Young-Hoon Kim Shekhar Mondal Qingqing Miao simiao li Danya liu Miao Wang Yaxin Zhai Jianbo Gao Abhijit Hazarika Guo-Ran li School of Materials Science and Engineering Nankai UniversityTianjin300350China Department of Energy Engineering Hanyang UniversitySeoul04763Republic of Korea Polymers and Functional Materials Division CSIR-Indian Institute of Chemical TechnologyUppal RoadTarnakHyderabad500007India Institute of Process Engineering Chinese Academy of SciencesBeijing100190China Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of PhysicsHunan Normal UniversityChangshHunan410081China Department of Chemistry Brock University1812 Sir Isaac WaySt CatharinesOntarioCanada

As lead halide perovskite(LHP)semiconductors have shown tremendous promise in many application fields,and particularly made strong impact in the solar photovoltaic area,low dimensional quantum dot forms of these perovskites are showing the potential to make distinct marks in the fields of electronics,optoelectronics and *** so-called perovskite quantum dots(PQDs)not only possess the most important features of LHP materials,i.e.,the unusual high defect tolerance,but also demonstrate clear quantum size effects,along with exhibiting desirable optoelectronic properties such as near perfect photoluminescent quantum yield,multiple exciton generation and slow hot-carrier ***,we review the advantageous properties of these nanoscale perovskites and survey the prospects for diverse applications which include lightemitting devices,solar cells,photocatalysts,lasers,detectors and memristors,emphasizing the distinct superiorities as well as the challenges.

关键词： Perovskite quantum dot light-emitting Detector Laser Solar cell

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自贸试验区对城市创业活跃度的影响机制分析

对外经贸实务 2024年第3期42卷 75-83页

作者：王滨叶蕊李思邈武汉纺织大学湖北武汉430200

自贸试验区作为国家政策的重要实践基地,对于激发城市创业活力具有显著影响。本文采用2006—2019年我国280个地级市的面板数据,运用多时点双重差分方法,探究自贸试验区对城市创业活跃度的影响及其作用机制。结果表明,自贸试验区的设立... 详细信息

自贸试验区作为国家政策的重要实践基地,对于激发城市创业活力具有显著影响。本文采用2006—2019年我国280个地级市的面板数据,运用多时点双重差分方法,探究自贸试验区对城市创业活跃度的影响及其作用机制。结果表明,自贸试验区的设立能够提升城市创业活跃度,并且在Ⅰ型大城市和中小城市的提升效应显著大于Ⅱ型大城市;对中等和高度市场化水平的城市在创业活跃度方面的促进效果显著,而对低市场化水平的城市则具有一定的抑制作用。进一步的机制分析发现,自贸试验区通过促进外商直接投资流入和高端要素集聚提升城市创业活跃度。为充分发挥自贸试验区对城市创业活跃度的积极作用,后续应更加注重在不同区域实施差异化政策,持续推行市场化改革,以激发城市创业的自发性和积极性。同时,加强技术创新和人才引进工作,提升城市技术密集度和知识密集度,从而更好地推动“大众创业、万众创新”政策的落地实施。

关键词：自贸试验区城市创业活跃度多时点双重差分法 FDI 高端要素集聚

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Transcriptomic analysis identifies the S100 calcium-binding protein β subunit(S100B)and intercellular adhesion molecule-1(ICAM-1)as potential diagnostic biomarkers for acute cerebral infarction

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Genes & Diseases 2024年第1期11卷 46-48页

作者： Dan Cheng Yushuo Wang Jingna li Yulan Yao simiao Zhang Yunliang Wang Department of Neurology Second Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450014China School of Medicine Medical Sciences and Nutrition University of AberdeenAberdeen AB252ZDUK Department of Neurology The 960th Hospital of PLAZiboShandong 255300China

Due to its high mortality,disability,and recurrence rates,cerebral infarction has a serious impact on the economy and is a physical and psychological burden on patients.1 There is a huge unmet medical need for biomarkers to predict acute cerebral *** have shown that the ischemic damage to neurons,myelin,and glia caused by a stroke leads to the release of the S100 calcium-binding protein beta subunit(S100B)through the blood-brain barrier into the systemic circulation,resulting in an increase in the level of S100B in the peripheral blood.

关键词： S100B cerebral infarction

High-entropy catalysts for electrochemical water-electrolysis of hydrogen evolution and oxygen evolution reactions

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Frontiers in Energy 2024年第3期18卷 265-290页

作者： simiao SHA Riyue GE Ying li Julie M.CAIRNEY Rongkun ZHENG Sean li Bin liU Jiujun ZHANG Wenxian li School of Materials Science and Engineering Shanghai UniversityShanghai 200444China School of Chemical and Environmental Engineering Anhui Polytechnic UniversityWuhu 241000China Australian Centre for Microscopy and Microanalysis School of AerospaceMechanical and Mechatronic EngineeringThe University of SydneySydney NSW 2006Australia School of Physics The University of SydneySydney NSW 2006Australia School of Materials Science and Engineering UNSW Materials&Manufacturing Futures InstituteUniversity of New South WalesSydney NSW 2052Australia College of Materials Science and Engineering Fuzhou UniversityFuzhou 350108China

High entropy materials (HEMs) have developed rapidly in the field of electrocatalytic water-electrolysis for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) due to their unique properties. In particular, HEM catalysts are composed of many elements. Therefore, they have rich active sites and enhanced entropy stability relative to single atoms. In this paper, the preparation strategies and applications of HEM catalysts in electrochemical water-electrolysis are reviewed to explore the stabilization of HEMs and their catalytic mechanisms as well as their application in support green hydrogen production. First, the concept and four characteristics of HEMs are introduced based on entropy and composition. Then, synthetic strategies of HEM catalysts are systematically reviewed in terms of the categories of bottom-up and top-down. The application of HEMs as catalysts for electrochemical water-electrolysis in recent years is emphatically discussed, and the mechanisms of improving the performance of electrocatalysis is expounded by combining theoretical calculation technology and ex-situ/in situ characterization experiments. Finally, the application prospect of HEMs is proposed to conquer the challenges in HEM catalyst fabrications and applications.

关键词： high-entropy electrocatalysis synthetic methods water-electrolysis hydrogen and oxygen evolutions

The impact of UV treatment on microbial control and DBPs formation in full-scale drinking water systems in northern China

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Journal of Environmental Sciences 2020年第1期32卷 398-410页

作者： Xiuwei Ao Zhongyun Chen simiao li Chen li Zedong Lu Wenjun Sun School of Environment Tsinghua University

To manage potential microbial risks and meet increasingly strict drinking water health standards,UV treatment has attracted increasing attention for use in drinking water systems in ***,the effects of UV treatment on microbial control and disinfection byproducts(DBPs)formation in real municipal drinking water systems are poorly ***,we collected water samples from three real drinking water systems in Beijing and Tianjin to investigate the impacts of UV treatment on microbial control and DBP *** employed heterotrophic plate count(HPC),flow cytometry(FCM),quantitative PCR analysis,and high-throughput sequencing to measure microorganisms in the *** trends were observed between HPC and total cell count(measured by FCM),indicating that a single indicator could not reflect the real degree of biological re-growth in drinking water distribution systems(DWDSs).A significant increase in the 16S rRNA gene concentration was observed when the UV system was ***,the bacterial community composition was similar at the phylum level but differed markedly at the genera level among the three *** chlorine-resistant bacteria,including potential pathogens(e.g.,Acinetobacter)showed a high relative abundance when the UV system was turned *** can be concluded that UV treatment can mitigate microbial re-growth to some ***,UV treatment had a limited influence on the formation of DBPs,including trihalomethanes,haloacetic acids,and nitrogenated *** findings of this study may help to understand the performance of UV treatment in real drinking water systems.

关键词： UV treatment Bacterial community Disinfection by-products(DBPs) Multi-barrier disinfection Municipal drinking water systems

Identification of S-RNase genotype and analysis of its origin and evolutionary patterns in Malus plants

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Journal of Integrative Agriculture 2024年第4期23卷 1205-1221页

作者： Zhao liu Yuan Gao Kun Wang Jianrong Feng simiao Sun Xiang Lu lin Wang Wen Tian Guangyi Wang Zichen li Qingshan li lianwen li Dajiang Wang Research Institute of Pomology Chinese Academy of Agricultural Sciences/Key Laboratory of Horticultural Crops Germplasm Resources UtilizationMinistry of Agriculture and Rural AffairsXingcheng 125100China College of Agriculture Shihezi University/Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization of Xinjiang Production and Construction CorpsShihezi 832000China

Identification of the S genotype of Malus plants will greatly promote the discovery of new genes,the cultivation and production of apple,the breeding of new varieties,and the origin and evolution of self-incompatibility in Malus *** this experiment,88 Malus germplasm resources,such as Aihuahong,Xishuhaitang,and Reguanzi,were used as *** gene-specific primer combinations were used in the genotype *** amplification using leaf DNA produced a single S-RNase gene fragment in all *** results revealed that 70 of the identified materials obtained a complete S-RNase genotype,while only one S-RNase gene was found in 18 of *** homology comparison and analysis,13 S-RNase genotypes were obtained:S_(1)S_(2)(Aihuahong,etc.),S_(1)S_(28)(Xixian Haitang,etc.),S_(1)S_(51)(Hebei Pingdinghaitang),S_(1)S_(3)(Xiangyangcun Daguo,etc.),S_(2)S_(3)(Zhaiyehaitang,etc.),S_(3)S_(51)(Xishan 1),S_(3)S_(28)(Huangselihaerde,etc.),S_(2)S_(28)(Honghaitang,etc.),S_(4)S_(28)(Bo 11),S_(7)S_(28)(Jiuquan Shaguo),S_(10)S_e(Dongchengguan 13),S_(10)S_(21)(Dongxiangjiao)and S_(3)S_(51)(Xiongyue Haitang).Simultaneously,the frequency of the S gene in the tested materials was *** findings revealed that different S genes had varying frequencies in Malus resources,as well as varying frequencies between intraspecific and interspecific.S_(3) had the highest frequency of 68.18%,followed by S_(1)(42.04%).In addition,the phylogenetic tree and origin evolution analysis revealed that the S gene differentiation was completed prior to the formation of various apple species,that cultivated species also evolved new S genes,and that the S_(50) gene is the oldest S allele in Malus *** S_(1),S_(29),and S_(33) genes in apple-cultivated species,on the other hand,may have originated in ***,***,and ***,*** addition to ***,*** and *** may have also played a role in the origin and evolution of some Chine

关键词： Malus S-RNase genotype self-incompatibility origin and evolution

On Technology and Ritual of Chuandou House Construction in Southwest China:The Case of Dong Minority Area

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Built Heritage 2018年第1期2卷 39-48页

作者： Congcong Ren Ruchen Bian simiao li Institute for the History of Natural Sciences Chinese Academy of SciencesBeijingChina Architecture Research and Design University of Chinese Academy of SciencesBeijingChina

This study is based on field work conducted in the mountainous countryside of Dong minority area,southwest China,where the custom of chuandou house construction has been preserved relatively *** this paper,we try to depict the whole construction process of traditional chuandou dwellings,from the very beginning of material preparation to the completion of one house,by explaining some details of the various steps of the construction process,including design principles,rituals,characteristic details on engineering,*** our research,we followed the work of a group of chief carpenters residing in the Dong minorities *** and technology are two arms helping them to maintain their professional authority towards other people involved in the construction ***,we examine the relationship between ritual and technology,how the two can be combined,how they influence the appearance of houses and how one can master them and pass down their knowledge and know-how to future generations of carpenters.

关键词： chuandou technology ritual chief carpenter

Floquet spectrum and universal dynamics of a periodically driven two-atom system

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Chinese Physics B 2024年第2期33卷 436-443页

作者：谢文柱周正强李轩崔思淼孙明远 School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China

We investigate the Floquet spectrum and excitation properties of a two-ultracold-atom system with periodically driven interaction in a three-dimensional harmonic *** interaction between the atoms is changed by varying the s-wave scattering length in two ways,the cosine and the square-wave *** is found that as the driving frequency increases,the Floquet spectrum exhibits two main features for both modulations,the accumulating and the spreading of the quasienergy levels,which further lead to different dynamical *** accumulation is associated with collective excitations and the persistent growth of the energy,while the spread indicates that the energy is bounded at all *** initial scattering length,the driving frequency and amplitude can all significantly change the Floquet spectrum as well as the ***,the corresponding relation between them is valid ***,we propose a mechanism for selectively exciting the system to one specific state by using the avoided crossing of two quasienergy levels,which could guide preparation of a desired state in experiments.

关键词： Floquet spectrum universal dynamics two-atom system avoided crossing

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氮磷钾营养影响植物根部病害的研究进展

植物生理学报 2023年第11期59卷 2011-2017页

作者：李思邈庞佳音方香玲草种创新与草地农业生态系统全国重点实验室兰州大学草地微生物研究中心兰州大学草地农业科技学院兰州730020 西澳大学农业与环境学院澳大利亚珀斯6009

氮、磷、钾是植物生长发育必需的三大营养元素,植物主要通过根系从土壤吸收营养。营养元素缺乏或不合理施肥等会导致植物根部病害的发生,影响植物的养分吸收,从而使植物生长受阻,产量降低。本文从氮、磷、钾这三种元素单独对植物根部病... 详细信息

氮、磷、钾是植物生长发育必需的三大营养元素,植物主要通过根系从土壤吸收营养。营养元素缺乏或不合理施肥等会导致植物根部病害的发生,影响植物的养分吸收,从而使植物生长受阻,产量降低。本文从氮、磷、钾这三种元素单独对植物根部病害的影响、三种元素交互对植物根部病害的影响,以及其影响病害发生的机理方面,总结了氮磷钾营养影响植物根部病害的研究进展,以期从调控营养元素含量和比例角度,为植物根部病害的有效防控提供思路,并为养分高效利用和减轻环境污染提供理论依据。

关键词：氮磷钾营养元素化肥施用根部病害植物抗病性