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Edge assisted epitaxy of CsPbBr_(3)nanoplates on Bi_(2)O_(2)Se nanosheets for enhanced photoresponse

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Chinese Physics B 2022年第4期31卷 693-699页

作者： Haotian Jiang Xing Xu Chao Fan beibei dai Zhuodong Qi Sha Jiang Mengqiu Cai Qinglin Zhang Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education School of Physics and ElectronicsHunan UniversityChangsha 410082China

Bi_(2)O_(2)Se has been proved to be a promising candidate for electronic and optoelectronic devices due to their unique physical ***,it is still a great challenge to construct the heterostructures with direct epitaxy of hetero semiconductor materials on Bi_(2)O_(2)Se ***,a two-step chemical vapor deposition(CVD)route was used to directly grow the CsPbBr_(3)nanoplate-Bi_(2)O_(2)Se nanosheet hetero *** CsPbBr_(3)nanoplates were selectively grown on the Bi_(2)O_(2)Se nanosheet along the edges,where the dangling bonds provide the nucleation *** epitaxial relationships between CsPbBr3 and Bi_(2)O_(2)Se were determined as[200]_(Bi_(2)O_(2)Se)‖[110]_(CsPbBr_(3))and[110]_(Bi_(2)O_(2)Se)‖[200]_(CsPbBr_(3))by transmission electron microscopy *** photoluminescence(PL)results reveal that the formation of heterostructures results in the remarkable PL quenching due to the type-Ⅰband arrangement at CsPbBr_(3)/Bi_(2)O_(2)Se interface,which was confirmed by ultraviolet photoelectron spectroscopy(UPS)and Kelvin probe measurements,and makes the photogenerated carriers transfer from CsPbBr_(3)to Bi_(2)O_(2)***,the photodetectors based on the heterostructures exhibit a 4-time increase in the responsivity compared to those based on the pristine Bi_(2)O_(2)Se sheets,and the fast rise and decay time in *** results indicate that the direct epitaxy of the CsPbBr_(3)plates on the Bi_(2)O_(2)Se sheet may improve the optoelectronic performance of Bi_(2)O_(2)Se based devices.

关键词： Bi_(2)O_(2)Se heterostructures photogenerated carriers photoresponse

Fibroblast-localized lncRNA CFIRL promotes cardiac fibrosis and dysfunction in dilated cardiomyopathy

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Science China(Life Sciences) 2024年第6期67卷 1155-1169页

作者： Shuai Yuan Xudong Zhang Jiabing Zhan Rong Xie Jiahui Fan beibei dai Yanru Zhao Zhongwei Yin Qian Liu Dao Wen Wang Huaping Li Chen Chen Division of Cardiology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders Wuhan 430030China Department of Forensic Medicine Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

CFIRL is a long noncoding RNA(lnc RNA),we previously identified as the most significantly upregulated lnc RNA in the failing hearts of patients with dilated cardiomyopathy(DCM).In this study,we determined the function of CFIRL and its role in ***-time polymerase chain reaction and in situ hybridization assays revealed that CFIRL was primarily localized in the nucleus of cardiac fibroblasts and robustly increased in failing *** knockdown or fibroblast-specific knockout of CFIRL attenuated transverse aortic constriction(TAC)-induced cardiac dysfunction and fibrosis in *** of CFIRL in vitro promoted fibroblast proliferation and aggravated angiotensin II-induced differentiation to *** knockdown attenuated these ***,RNA pull-down assay and gene expression profiling revealed that CFIRL recruited ENO1,a newly identified noncanonical transcriptional factor,to activate ***-6 exerted a paracrine effect on cardiomyocytes to promote cardiac hypertrophy,which can be prevented by CFIRL *** findings uncover the critical role of CFIRL,a fibroblast-associated lnc RNA,in heart failure by facilitating crosstalk between fibroblasts and *** knockdown might be a potent strategy to prevent cardiac remodeling in heart failure,particularly in DCM.

关键词： lncRNA fibroblast fibrosis dilated cardiomyopathy heart failure

A Kaposi’s sarcoma-associated herpes virus-encoded microRNA contributes to dilated cardiomyopathy

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Signal Transduction and Targeted Therapy 2023年第7期8卷 3443-3454页

作者： Yanru Zhao Huaping Li Hengzhi Du Zhongwei Yin Mengying He Jiahui Fan Xiang Nie Yang Sun Huiying Hou beibei dai Xudong Zhang Yuanyuan Cai Kunying Jin Nan Ding Zheng Wen Jiang Chang Chen Chen Dao Wen Wang Division of Cardiology Department of Internal MedicineTongji HospitalTongji Medical CollegeHuazhong University of Science and Technology430030 WuhanChina Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders 430030 WuhanChina Division of Cardiology Department of Internal MedicineHubei Provincial Renmin Hospital430030 WuhanChina Division of Cardiology Department of Internal MedicineThe First People’s Hospital of Anqing246004 AnqingChina Department of Epidemiology and Biostatistics Key Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Science and Technology430030 WuhanChina

Dilated cardiomyopathy(DCM)is the leading cause of heart *** microRNA(miRNA)array,a Kaposi’s sarcoma-associated herpes virus(KSHV)-encoded miRNA,kshv-miR-K12-1-5p,was detected in patients with *** KSHV DNA load and k... 详细信息

关键词： Kaposi cardiomyopathy sarcoma

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太阳能光电、光热转换材料的研究现状与进展

硅酸盐学报 2017年第11期45卷 1555-1568页

作者：王聪代蓓蓓于佳玉王蕾孙莹北京航空航天大学物理学院太阳能物理实验室北京100191

重点探讨了太阳能光电、光热转换技术领域的材料研究现状与发展,主要包括光伏电池半导体材料和太阳光谱选择性吸收涂层光学材料膜系。太阳电池材料的关键问题还是成本与光电转换效率,钙钛矿太阳电池的研究成为光伏电池新的研究热点。太... 详细信息

重点探讨了太阳能光电、光热转换技术领域的材料研究现状与发展,主要包括光伏电池半导体材料和太阳光谱选择性吸收涂层光学材料膜系。太阳电池材料的关键问题还是成本与光电转换效率,钙钛矿太阳电池的研究成为光伏电池新的研究热点。太阳光谱选择性吸收涂层是太阳能光热利用领域的核心材料技术之一。近年来,太阳能的中高温热利用,尤其是聚焦热发电技术,作为与光伏发电平行的另一种主流太阳能发电方式,成为人们日益关注的焦点。另外,还阐述了中高温太阳光谱选择性吸收涂层在国内外的研究成果和最新进展。

关键词：太阳能光伏电池太阳能聚焦热发电太阳光谱选择性吸收涂层

SiWN/SiWON双吸收层薄膜的光吸收性能（英文）

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硅酸盐学报 2018年第5期46卷 633-637页

作者：张翼麟王聪孙莹王蕾宋平代蓓蓓北京航空航天大学凝聚态物理与材料物理研究中心

采用磁控溅射法在玻璃基底上制备了氮化物SiWN和氮氧化物SiWON层。通过拟合反射光谱和透射光谱数据，分别获得两个吸收层的折射率和消光系数。SiWN层的折射率大于0．75，消光系数大于1．25并且随着波长的增长而增加，表现出金属性质。Si... 详细信息

采用磁控溅射法在玻璃基底上制备了氮化物SiWN和氮氧化物SiWON层。通过拟合反射光谱和透射光谱数据，分别获得两个吸收层的折射率和消光系数。SiWN层的折射率大于0．75，消光系数大于1．25并且随着波长的增长而增加，表现出金属性质。SiWON层具有低的消光系数（0．5～1．5），表现出半导体性质。根据SiWN和SiWON单层的光学常数，模拟得到理论吸收率为0．901的SiWN／SiWON双吸收层。根据拟合得到的参数，制备了吸收率为0．895的双吸收层。

关键词：硅钨氮化物光学常数磁控溅射吸收率

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高效生物絮凝剂在烯烃污水中的应用研究

石油化工安全环保技术 2021年第6期37卷 60-63,I0004页

作者：代蓓蓓中国石油化工股份有限公司天津分公司天津300271

通过对某石化污水处理厂烯烃污水处理装置的出水水质展开系统分析,针对出水悬浮物较高的情况开展了投加高效絮凝剂的生产性试验。当高效絮凝剂投加量为20 mg/L时,出水悬浮物明显降低,出水浊度由之前的均值8.3 NTU降至3.3 NTU,出水浊度... 详细信息

通过对某石化污水处理厂烯烃污水处理装置的出水水质展开系统分析,针对出水悬浮物较高的情况开展了投加高效絮凝剂的生产性试验。当高效絮凝剂投加量为20 mg/L时,出水悬浮物明显降低,出水浊度由之前的均值8.3 NTU降至3.3 NTU,出水浊度明显降低。投用该药剂后,COD、总磷等指标无明显变化,说明该种药剂对污水系统没有较明显影响。

关键词：烯烃污水高效絮凝剂悬浮物去除浊度降低

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直播潮下高校农村电商人才培养模式研究

经济研究导刊 2023年第22期 126-128页

作者：戴蓓蓓淮北师范大学经济与管理学院安徽淮北235000

农村电商是实施乡村振兴战略的有力抓手,农村电商直播正成为数字经济下农业转型升级的新方向。根据电子商务行业性质和学科属性,分析农村电商的发展现状、农村电商直播的模式和流程,在探究农村电商直播行业存在的问题及人才培养诉求的... 详细信息

农村电商是实施乡村振兴战略的有力抓手,农村电商直播正成为数字经济下农业转型升级的新方向。根据电子商务行业性质和学科属性,分析农村电商的发展现状、农村电商直播的模式和流程,在探究农村电商直播行业存在的问题及人才培养诉求的基础上,总结直播潮下高校农村电商人才培养面临的挑战,提出构建和完善农村电商优质复合型人才培养的路径。

关键词：直播农村电商人才培养

Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin dai Xuefeng Liu Xin Ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

A Multi-Objective Particle Swarm Optimization Algorithm Based on Decomposition and Multi-Selection Strategy

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Computers, Materials & Continua 2025年第1期82卷 997-1026页

作者： Li Ma Cai dai Xingsi Xue Cheng Peng School of Computer Science Shaanxi Normal UniversityXi’an710119China Fujian Provincial Key Laboratory of Big Data Mining and Applications Fujian University of TechnologyFuzhou350118China Information Construction and Management Center and Institute of Artificial Intelligence and Educational New Productivity Ningxia Normal UniversityGuyuan756099China

The multi-objective particle swarm optimization algorithm(MOPSO)is widely used to solve multi-objective optimization *** the article,amulti-objective particle swarm optimization algorithmbased on decomposition and multi-selection strategy is proposed to improve the search ***,two update strategies based on decomposition are used to update the evolving population and external archive,***,a multiselection strategy is *** first strategy is for the subspace without a non-dominated *** the neighbor particles,the particle with the smallest penalty-based boundary intersection value is selected as the global optimal solution and the particle far away fromthe search particle and the global optimal solution is selected as the personal optimal solution to enhance global *** second strategy is for the subspace with a non-dominated *** the neighbor particles,two particles are randomly selected,one as the global optimal solution and the other as the personal optimal solution,to enhance local *** third strategy is for Pareto optimal front(PF)discontinuity,which is identified by the cumulative number of iterations of the subspace without non-dominated *** the subsequent iteration,a new probability distribution is used to select from the remaining subspaces to ***,an adaptive inertia weight update strategy based on the dominated degree is designed to further improve the search ***,the proposed algorithmis compared with fivemulti-objective particle swarm optimization algorithms and five multi-objective evolutionary algorithms on 22 test *** results show that the proposed algorithm has better performance.

关键词： Multi-objective optimization multi-objective particle swarm optimization decomposition multi-selection strategy