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光子Moiré超晶格薄膜的设计及光学特性研究

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光学学报 2024年第4期44卷 355-362页

作者：赵富源孙晓红郑州大学电气与信息工程学院河南省激光与光电信息技术重点实验室河南郑州450001

二维光子Moiré超晶格拥有一些常规光子晶体不具备的特性,例如平带特征和不同于安德森局域化的光局域现象。本文利用多光束干涉法构建二维光子Moiré超晶格结构,采用有限元法对其能带结构及光场特性进行研究。通过优化Moiré晶格厚度、... 详细信息

二维光子Moiré超晶格拥有一些常规光子晶体不具备的特性,例如平带特征和不同于安德森局域化的光局域现象。本文利用多光束干涉法构建二维光子Moiré超晶格结构,采用有限元法对其能带结构及光场特性进行研究。通过优化Moiré晶格厚度、空气孔半径对其平带及局域特性的影响,得到了高局域特性的Moiré晶格结构。研究中发现,正方晶格具有不同于六角晶格的准狄拉克锥光局域化效应。本文研究结果对发展高性能微纳结构器件具有重要参考价值。

关键词：光子晶体光子Moiré超晶格多光束干涉平带光局域

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石墨炔基S型异质结构建及平米级光催化产氢

Science China Materials 2024年第2期67卷 493-503页

作者：杨成李小红靳治良 School of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyKey Laboratory for Chemical Engineering and TechnologyState Ethnic Affairs CommissionNorth Minzu UniversityYinchuan 750021China

石墨炔由于其高载流子迁移率和有序的孔隙结构被认为是一种很有应用前景的光催化材料.本研究通过交叉偶联合成了一种新型球状石墨炔,并与棒状Mn_(0.2)Cd_(0.8)S耦合构建了S型异质结用于光催化析氢.结果表明,Mn_(0.2)Cd_(0.8)S/石墨炔异... 详细信息

石墨炔由于其高载流子迁移率和有序的孔隙结构被认为是一种很有应用前景的光催化材料.本研究通过交叉偶联合成了一种新型球状石墨炔,并与棒状Mn_(0.2)Cd_(0.8)S耦合构建了S型异质结用于光催化析氢.结果表明,Mn_(0.2)Cd_(0.8)S/石墨炔异质结光催化剂表现出优异的光催化活性,产氢性能分别较Mn_(0.2)Cd_(0.8)S和球形石墨炔单体催化剂提升了1..78和61..2倍.同时,该催化剂应用于平米级规模产氢取得较好效果.其优异的光催化活性可归因于石墨炔的独特性能及S-scheme异质结的有效构建.通过紫外光电子能谱、原位辐射X射线光电子能谱、电子顺磁共振能谱、密度泛函理论计算和其他表征技术探究了S-scheme异质结的形成和光催化活性的增强.该工作可为石墨炔的形貌可调性制备以及高效异质结光催化剂的设计和合成提供新参考.

关键词： spherical graphdiyne Mn_(0.2)Cd_(0.8)S DFT S-scheme heterojunction square meter-scale photocatalytic hydrogen production

Rational Design and Construction of a CdS QDs/lnVO_(4) Atomic-Layer(1.0)/(1.0)Facet S-Scheme Heterojunction for Highly Efficient Photocatalytic Degradation of C_(2)H_(4)

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Energy & Environmental Materials 2024年第3期7卷 211-218页

作者： Yuanpeng Dong Peizhu Ji Xinyue Xu Rong Li Yin Wang Kevin Peter Homewood xiaohong Xia Yun Gao Xuxing Chen Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science&EngineeringHubei UniversityWuhan 430062China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China United Water(Xianning)Company Limited Xianning 437100China

Exploring high efficiency S-scheme heterojunction photocatalysts with strong redox ability for removing volatile organic compounds from the air is of great interest and ***,how to predict and regulate the transport of photogenerated carriers in heterojunctions is a great ***,density functional theory calculations were first used to successfully predict the formation of a CdS quantum dots/InVO_(4)atomic-layer(1.0)/(1.0)facet S-scheme ***,a CdS quantum dots/InVO_(4)atomic-layer was synthesized by in-situ loading of CdS quantum dots with(1.0)facets onto the(1.0)facets of InVO_(4)*** a result of the deliberately constructed built-in electric field between the adjoining facets,we obtain a remarkably enhanced photocatalytic degradation rate for *** rate is 1..8 times that of pure CdS and 1..2 times that of pure InVO_(4).In-situ irradiated X-ray photoelectron spectroscopy,photoluminescence and time-resolved photoluminescence measurements were carried *** experiments validate that the built-in electric field enhanced the dissociation of photoexcited excitons and the separation of free charge carriers,and results in the formation of S-scheme charge transfer *** reaction mechanism of the photocatalytic C_(2)H_(4)oxidation is investigated by in-situ electron paramagnetic *** work provides a mechanistic insight into the construction and optimization of semiconductor heterojunction photocatalysts for application to environmental remediation.

关键词： CdS QDs InVO_(4)atomic-layer photocatalysis S-scheme volatile organic compounds

The light and hypoxia induced gene ZmPORB1.determines tocopherol content in the maize kernel

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Science China(Life Sciences) 2024年第3期67卷 435-448页

作者： Nannan Liu Yuanhao Du Shijuan Yan Wei Chen Min Deng Shutu Xu Hong Wang Wei Zhan Wenjie Huang Yan Yin xiaohong Yang Qiao Zhao Alisdair R.Fernie Jianbing Yan National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China Agro-biological Gene Research Center Guangdong Academy of Agricultural SciencesGuangzhou 510640China College of Agronomy Hunan Agricultural UniversityChangsha 410128China College of Agronomy Northwest A&F UniversityXi'an 710000China State Key Laboratory of North China Crop Improvement and Regulation Hebei Sub-center of National Maize Improvement Center of ChinaCollege of AgronomyHebei Agricultural UniversityBaoding 071001China College of Life Sciences South-Central Minzu UniversityWuhan 430070China Plant Science Facility of the Institute of Botany Chinese Academy of SciencesBeijing 100093China National Maize Improvement Center of China Beijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100093China Shenzhen Key Laboratory of Synthetic Genomics Guangdong Provincial Key Laboratory of Synthetic GenomicsShenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Max Planck Institute of Molecular Plant Physiology Potsdam-Golm 14476Germany

Tocopherol is an important lipid-soluble antioxidant beneficial for both human health and plant growth. Here, we fine mapped a major QTLqVE1.affecting γ-tocopherol content in maize kernel, positionally cloned and confirmed the underlying gene ZmPORB1.por1., as a protochlorophyllide oxidoreductase. A 1..7 kb insertion reduced the tocopherol and chlorophyll content, and the photosynthetic activity by repressing ZmPORB1.expression in embryos of NIL-K22, but did not affect the levels of the tocopherol precursors HGA(homogentisic acid)and PMP(phytyl monophosphate). Furthermore, ZmPORB1.is inducible by low oxygen and light, thereby involved in the hypoxia response in developing embryos. Concurrent with natural hypoxia in embryos, the redox state has been changed with NO increasing and H_(2)O_(2) decreasing, which lowered γ-tocopherol content via scavenging reactive nitrogen species. In conclusion, we proposed that the lower lightharvesting chlorophyll content weakened embryo photosynthesis, leading to fewer oxygen supplies and consequently diverse hypoxic responses including an elevated γ-tocopherol consumption. Our findings shed light on the mechanism for fine-tuning endogenous oxygen concentration in the maize embryo through a novel feedback pathway involving the light and low oxygen regulation of ZmPORB1.expression and chlorophyll content.

关键词： maize tocopherol hypoxia photosynthesis ZmPORB1

“献礼”文学选本的运作机制及价值取向——基于1.59年“兄弟民族作家作品合集”的考察

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民族文学研究 2024年第2期42卷 25-34页

作者：海晓红(回族) 南京大学中国新文学研究中心

“献礼”文学选本作为中国当代文学史上一种值得关注的文学现象,其运作机制和价值取向显示出特定历史语境下中华多民族文学的整体面貌,具有规模化的示范效应。基于中华人民共和国成立十周年的特殊语境,人民文学出版社编选的“兄弟民族... 详细信息

“献礼”文学选本作为中国当代文学史上一种值得关注的文学现象,其运作机制和价值取向显示出特定历史语境下中华多民族文学的整体面貌,具有规模化的示范效应。基于中华人民共和国成立十周年的特殊语境,人民文学出版社编选的“兄弟民族作家诗歌合集”《我握着毛主席的手》和“兄弟民族作家短篇小说合集”《新生活的光辉》以“合集”的形式彰显了少数民族文学群像,入选其中的作品以统一标准彰显了中华人民共和国成立十周年之际少数民族文学在中国文学框架中的文化形象,体现的是公共话语和集体姿态。

关键词： “献礼” 文学选本少数民族文学民族团结

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多功能热电织物用于可穿戴无线传感系统

Engineering 2024年第4期35卷 158-167页

作者： Xinyang He Jiaxin Cai Mingyuan Liu Xuepeng Ni Wendi Liu Hanyu Guo Jianyong Yu Liming Wang xiaohong Qin Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China

Flexible thermoelectric materials play an important role in smart wearables,such as wearable power generation,self-powered sensing,and personal thermal ***,with the rapid development of Internet of Things(IoT)and artificial intelligence(AI),higher standards for comfort,multifunctionality,and sustainable operation of wearable electronics have been proposed,and it remains challenging to meet all the requirements of currently reported thermoelectric ***,we present a multifunctional,wearable,and wireless sensing system based on a thermoelectric knitted fabric with over 600 mm·s^(-1.air permeability and a stretchability of 1.0%.The device coupled with a wireless transmission system realizes self-powered monitoring of human respiration through an mobile phone application(APP).Furthermore,an integrated thermoelectric system was designed to combine photothermal conversion and passive radiative cooling,enabling the characteristics of being powered by solar-driven in-plane temperature differences and monitoring outdoor sunlight intensity through the ***,we decoupled the complex signals of resistance and thermal voltage during deformation under solar irradiation based on the anisotropy of the knitted fabrics to enable the device to monitor and optimize the outdoor physical activity of the athlete via the *** novel thermoelectric fabricbased wearable and wireless sensing platform has promising applications in next-generation smart textiles.

关键词： Thermoelectric fabrics Wearable device Wireless Multifunctional sensing system Outdoor wearable signal monitoring

Global burden of vision loss attributable to household air pollution from 1.90 to 201.:A trend analysis and 1.-year prediction

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Chinese Medical Journal 2024年第10期137卷 1231-1233页

作者： Cong Li Zuoqian Jing Jianbo Shen Shunming Liu Lei Liu xiaohong Yang Honghua Yu Department of Ophthalmology Guangdong Eye InstituteGuangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhouGuangdong 510080China School of Medicine South China University of Technology Guangzhou 510006China Department of Ophthalmology The First Hospital of China Medical UniversityShenyangLiaoning 110001China Department of Neurosurgery Jincheng People’s HospitalJinchengShanxi 048026China Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application Guangzhou 510080China

To the Editor:Blindness and vision loss(BVL)constitute a growing concern affecting an ever-expanding global population.[1.Globally,approximately 40%of the population relies on burning solid fuels for both cooking and *** air pollution(HAP)predominantly arises from the incomplete combustion of solid fuels used for ***,the adverse effects of HAP on eye health in human have ascended as a salient concern for environmental,ophthalmic,and public health.[2]Gaining a comprehensive understanding of the burden and temporal trends of BVL due to HAP is the essential basis for health program planning.

关键词： pollution cooking prediction

Joint chance‐constrained coordinated scheduling for electricity‐heat coupled systems considering hydrogen storage

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Energy Internet 2024年第1期1卷 99-111页

作者： Lun Yang Xunhang Sun Xiaoyu Cao Mengxiao Chen xiaohong Guan School of Automation Science and Engineering Xi’an Jiaotong UniversityXi’anChina

Strong interdependence between power production and heat supply from combined power and heat units could restrict the wind power *** hydrogen storage,typically formed by the electrolyser,hydrogen tank,and fuel cell,could be a promising measure to accommodate surplus wind power and facilitate the coordinated operation of power and *** authors consider coordinated scheduling under wind power uncertainty for an electricity‐heat coupled system with hydrogen storage and propose a distributionally robust joint chance‐constrained coordinated scheduling(DRJCC‐CS)model,where the waste heat from the electrolyser and fuel cell is *** authors design distributionally robust joint chance constraints to account for wind power uncertainty related constraints and derive their tractable inner and outer mixed‐integer convex ***,the proposed DRJCC‐CS model is casted into a mixed‐integer convex *** studies are conducted to demon-strate the effectiveness of the proposed DRJCC‐CS method.

关键词： Strong coordinated constrained

Establishment of a humanized mouse model using steady-state peripheral blood-derived hematopoietic stem and progenitor cells facilitates screening of cancer-targeted T-cell repertoires

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Cancer Innovation 2024年第3期3卷 1-21页

作者： Yulin Xu Wei Shan Qian Luo Meng Zhang Dawei Huo Yijin Chen Honghu Li Yishan Ye xiaohong Yu Yi Luo He Huang Bone Marrow Transplantation Center The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina Liangzhu Laboratory Zhejiang UniversityHangzhouChina Institute of Hematology Zhejiang UniversityHangzhouChina Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy HangzhouChina School of Medicine Zhejiang UniversityHangzhouChina

Background:Cancer-targeted T-cell receptor T(TCR-T)cells hold promise in treating cancers such as hematological malignancies and breast ***,approaches to obtain cancer-reactive TCR-T cells have been ***:Here,we developed a novel strategy to screen for cancer-targeted TCR-T cells using a special humanized mouse model with person-specific immune *** steady-state circulating hematopoietic stem and progenitor cells were expanded via three-dimensional culture of steady-state peripheral blood mononuclear cells,and then the expanded cells were applied to establish humanized *** human immune system was evaluated according to the kinetics of dendritic cells,monocytes,T-cell subsets,and *** fully stimulate the immune response and to obtain B-cell precursor NAML-6-and triple-negative breast cancer MDA-MB-231.targeted TCR-T cells,we used the inactivated cells above to treat humanized mice twice a day every 7 ***,human T cells were processed for TCRβ-chain(TRB)sequencing *** the repertoires had been constructed,features such as the fraction,diversity,and immune signature were ***:The results demonstrated an increase in diversity and clonality of T cells after *** preferential usage and features of TRBV,TRBJ,and the V–J combination were also *** stress also induced highly clonal Science and Technology,Grant/Award Number:2021.0301.;Zhejiang Provincial Natural Science Foundation of China,Grant/Award Numbers:LTGY24H080003,LY21.080004 *** burden and survival analysis demonstrated that stress induction could significantly inhibit the growth of subsequently transfused live tumor cells and prolong the survival of the humanized ***:We constructed a personalized humanized mouse model to screen cancer-targeted TCR-T *** platform provides an effective source of cancer-targeted TCR-T cells and allows for the design of patient-specific engineered T cells.

关键词： cancer-targeted T-cell receptor T(TCR-T)cells circulating hematopoietic stem and progenitor cells(HSPCs) humanized mouse model steady-state peripheral blood T-cell receptorβ-chain(TRB) three-dimensional culture