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Surface repair of wide-bandgap perovskites for high-performance all-perovskite tandem solar cells

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Journal of Energy Chemistry 2024年第6期93卷 64-70,I0003页

作者： Xiaojing Lv Weisheng Li Jin Zhang Yujie Yang xuefei Jia Yitong Ji Qianqian Lin Wenchao Huang Tongle Bu Zhiwei Ren Canglang Yao Fuzhi Huang Yi-Bing Cheng Jinhui Tong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Key Lab of Artificial Micro-and Nano-Structures of Ministry of Education of China School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina Department of Electrical and Electronic Engineering Photonics Research Institute(PRI)Research Institute for Intelligent Wearable Systems(iWEAR)The Hong Kong Polytechnic University999077Hong KongChina Laboratory of Advanced Materials Fudan UniversityShanghai 200438China Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528200GuangdongChina

Wide-bandgap(WBG)perovskite solar cells(PSCs)play a fundamental role in perovskite-based tandem solar ***,the efficiency of WBG PSCs is limited by significant open-circuit voltage losses,which are primarily caused by surface *** this study,we present a novel method for modifying surfaces using the multifunctional S-ethylisothiourea hydrobromide(SEBr),which can passivate both Pb^(-1)and FA^(-1)terminated surfaces,Moreover,the SEBr upshifted the Fermi level at the perovskite interface,thereby promoting carrier *** proposed method was effective for both 1.67 and 1.77 eV WBG PSCs,achieving power conversion efficiencies(PCEs)of 22.47%and 19.90%,respectively,with V_(OC)values of 1.28 and 1.33 V,along with improved film and device *** this advancement,we were able to fabricate monolithic all-perovskite tandem solar cells with a champion PCE of 27.10%,This research offers valuable insights for passivating the surface trap states of WBG perovskite through rational multifunctional molecular engineering.

关键词： Wide-bandgap perovskite Surface defect Multifunctional molecule All-perovskite tandem solar cells

Metagenomic Insight Reveals the Microbial Structure and Function of the Full-Scale Coking Wastewater Treatment System:Gene-Based Nitrogen Removal

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Engineering 2024年第5期36卷 76-89页

作者： Jiaying Ma Fan Wang Haifeng Fan Enchao Li Huaqiang Chu xuefei Zhou Yalei Zhang State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Tongji UniversityShanghai 200092China Baowu Water Technology Co. Ltd.Shanghai 201999China

Microbial communities play crucial roles in pollutant removal and system stability in biological systems for coking wastewater(CWW)treatment,but a comprehensive understanding of their structure and functions is still lacking.A five month survey of four sequential bioreactors,anoxic 1/oxic 1/anoxic 2/oxic 2(A1/O1/A2/O2),was carried out in a full-scale CWW treatment system in China to elucidate operational performance and microbial *** results showed that A1/O1/A2/O2 had excellent and stable performance for nitrogen *** total nitrogen(TN;(17.38±6.89)mgL1)and ammonium-nitrogen(NH4 t-N;(2.10±1.34)mg·L^(-1))in the final biological effluent satisfied the Chinese national standards for *** analysis of 16S ribosome RNA(rRNA)sequencing and metagenomic sequencing showed that the bacterial communities and metagenomic function profiles of A1 and O1 shared similar functional structures,while those of A2 significantly varied from those of other bioreactors(p<0.05).The results indicated that microbial activity was strongly connected with activated sludge ***,Nitrosomonas,and SM1A02 were responsible for nitrification during the primary anoxic-oxic(AO)stage and Azoarcus and Thauera acted as important denitrifiers in *** cycling-related enzymes and genes work in the A1/O1/A2/O2 ***,the hao genes catalyzing hydroxylamine dehydrogenase(EC 1.***.2.6)and the napA and napB genes catalyzing nitrate reductase(EC 1.***.6.1)played important roles in the nitrification and denitrification processes in the primary and secondary AO stages,*** mixed liquor suspended solids(MLSS)/total solids(TS),TN removal rate(RR),total organic carbon(TOC)(RR),and NH_(4)^(+)t-N(RR)were the most important environmental factors for regulating the structure of core bacterial genera and nitrogen-cycling *** were the potential main participants in nitrogen metabolism in the A1/O1/A2/O2 system for CWW *** study prov

关键词： Coking wastewater Full-scale Microbial community Metagenomic sequencing Nitrogen-cycling genes Environmental factor

Pathological progression of osteoarthritis:a perspective on subchondral bone

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Frontiers of Medicine 2024年第2期18卷 237-257页

作者： xuefei Li Wenhua Chen Dan Liu Pinghua Chen Shiyun Wang Fangfang Li Qian Chen Shunyi Lv Fangyu Li Chen Chen Suxia Guo Weina Yuan Pan Li Zhijun Hu Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine Shanghai200032China Research and Development Center of Chinese Medicine Resources and Biotechnology Shanghai University of Traditional Chinese MedicineShanghai201203China

Osteoarthritis(OA)is a degenerative bone disease associated with *** rising global aging population has led to a surge in OA cases,thereby imposing a significant socioeconomic *** have been keenly investigating the mechanisms underlying *** studies have suggested that the disease starts with synovial inflammation and hyperplasia,advancing toward cartilage ***,subchondral-bone collapse,sclerosis,and osteophyte formation *** progression is deemed as“top to bottom.”However,recent research is challenging this perspective by indicating that initial changes occur in subchondral bone,precipitating cartilage *** this review,we elucidate the epidemiology of OA and present an in-depth overview of the subchondral bone’s physiological state,functions,and the varied pathological shifts during OA *** also introduce the role of multifunctional signal pathways(including osteoprotegerin(OPG)/receptor activator of nuclear factor-kappa B ligand(RANKL)/receptor activator of nuclear factor-kappa B(RANK),and chemokine(CXC motif)ligand 12(CXCL12)/CXC motif chemokine receptor 4(CXCR4))in the pathology of subchondral bone and their role in the“bottom-up”progression of *** vivid pattern maps and clinical images,this review highlights the crucial role of subchondral bone in driving OA progression,illuminating its interplay with the condition.

关键词： osteoarthritis subchondral bone OPG/RANKL/RANK CXCL12/CXCR4

什么是道路?——论米亚·科托“混杂性”书写的政治内蕴

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文艺理论与批评 2024年第1期 19-32页

作者：闵雪飞北京大学外国语学院

莫桑比克作家米亚·科托书写中的“多元主义”与“杂糅”葡萄牙语和土著语言的努力让他获得了后殖民主义文学研究的“厚待”,在一个现代化失败的国家,获得了某种“文学现代性”。尽管米亚·科托目前已经弱化了“混杂性”书写,题材也从... 详细信息

莫桑比克作家米亚·科托书写中的“多元主义”与“杂糅”葡萄牙语和土著语言的努力让他获得了后殖民主义文学研究的“厚待”,在一个现代化失败的国家,获得了某种“文学现代性”。尽管米亚·科托目前已经弱化了“混杂性”书写,题材也从现实转向了历史,但或许出于研究惯性与相关理论的方便与好用,目前的研究依然集中于早期“混杂性”的后殖民主义分析,潜藏着将米亚·科托安放于“文化帝国主义”之中的目的。联系莫桑比克现代化建设的得失,以萨莫拉·马歇尔的“新人”计划作为参照,分析《梦游之地》中的“混杂性”书写,可揭示这种书写中的政治内蕴:米亚·科托不仅要纠正“新人”计划的单极性缺陷,而且要创造一种与传统和历史相适配的国家身份。

关键词：混杂新人内战身份构建现代化建设

动态可逆网络构建对橡胶材料性能影响的研究进展

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橡胶工业 2020年第8期67卷 563-569页

作者：张松波冷雪菲韩丽李超雷岚马红卫李杨大连理工大学辽宁省高分子材料科学与工程重点实验室辽宁大连116024

论述动态可逆网络构建对橡胶材料性能影响的研究进展。动态可逆网络的构建主要基于非共价键和动态可逆共价键,非共价键包括氢键和离子键,生成动态可逆共价键的主要方法有Diels-Alder反应、β-羟基酯交换反应和双硫交换等。目前动态可逆... 详细信息

论述动态可逆网络构建对橡胶材料性能影响的研究进展。动态可逆网络的构建主要基于非共价键和动态可逆共价键,非共价键包括氢键和离子键,生成动态可逆共价键的主要方法有Diels-Alder反应、β-羟基酯交换反应和双硫交换等。目前动态可逆网络在橡胶材料中的应用还存在一些问题,如采用氢键和离子键构建动态可逆网络导致橡胶材料性能不稳定、动态可逆网络构建工艺复杂等。在不牺牲橡胶材料原有应用性能的基础上,通过匹配橡胶材料工业成型工艺来构建稳定的动态可逆网络以赋予橡胶材料可重复加工性和自愈性,是未来研究的主要方向。

关键词：动态网络动态可逆共价键非共价键橡胶性能设计

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基于特征融合的异源图像匹配算法

导航与控制 2023年第6期22卷 106-115页

作者：郝祥冷雪飞李一能南京航空航天大学航天学院南京211106 南京航空航天大学导航研究中心南京211106

在飞行器视觉导航的特征提取和匹配过程中,异源图像成像手段不同、特征信息差异大,各类图像信息因标准不一难以实现精确匹配。针对上述问题,提出了一种基于特征融合的异源图像匹配算法,能够实现异源图像的高精度匹配。首先,设计了基于... 详细信息

在飞行器视觉导航的特征提取和匹配过程中,异源图像成像手段不同、特征信息差异大,各类图像信息因标准不一难以实现精确匹配。针对上述问题,提出了一种基于特征融合的异源图像匹配算法,能够实现异源图像的高精度匹配。首先,设计了基于残差网络的编码网络,提升了对图像深层次特征的提取能力;然后,在解码网络中使用了稠密连接保留中间层特征,使得融合结果能兼顾图像的各层级信息;同时,设计了包含注意力机制的融合策略,优化了融合特征中源图像的信息占比,提升了融合特征的质量;最后,将融合特征应用于图像匹配。实验结果表明,该算法相较于常见方法在特征融合评价指标上具有优越性。在异源图像匹配实验中,算法的匹配正确率为96.71%,旋转情况下的匹配正确率为89.40%,具有高精度、强鲁棒的特点。

关键词：异源图像图像特征融合图像匹配残差网络注意力机制导航

内电解-沉水植物-微生物耦合体系处理黑臭水体效能及机制研究

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环境污染与防治 2023年第6期45卷 796-804页

作者：刘岚昕于素晗李娜王赫冷雪飞包震宇李崇辽宁省生态环境保护科技中心辽宁沈阳110161 沈阳师范大学实验教学中心辽宁沈阳110034 大连理工大学环境学院辽宁大连116023

采用内电解-沉水植物-微生物耦合的方法进行黑臭水体原位生态修复效能的单因素影响研究,考察了苦草种植密度和铁碳填料用量对耦合体系除污复氧的影响,并对耦合体系协同作用机理进行了分析。结果表明,耦合体系具有良好的除污复氧能力,最... 详细信息

采用内电解-沉水植物-微生物耦合的方法进行黑臭水体原位生态修复效能的单因素影响研究,考察了苦草种植密度和铁碳填料用量对耦合体系除污复氧的影响,并对耦合体系协同作用机理进行了分析。结果表明,耦合体系具有良好的除污复氧能力,最佳苦草种植密度和铁碳填料用量分别为143株/m^(2)和20 g/L,此条件下运行25 d的溶解氧(DO)、氨氮转化率以及化学需氧量(COD)、总氮(TN)和总磷(TP)的去除率分别为3.87 mg/L、91.09%、79.30%、84.31%和98.40%。苦草根际微生物群落分析结果显示,耦合体系运行稳定后,优势菌为兼有自养和异养反硝化及聚磷作用的Pseudomonas,反硝化作用的Chryseobacterium,具有脱氮作用的Delftia和unclassified_f_Comamonadaceae,表明耦合体系具有自养反硝化能力,这与试验结果的计算分析相一致;具有降解有机物作用的Sphingomonadaceae和Nitrosomonadaceae的丰度都大于系统启动初期,Nitrosomonadaceae是试验过程中亚硝态氮积累的主要原因,表明耦合体系存在短程硝化反硝化脱氮过程。

关键词：黑臭水体内电解苦草微生物生态修复

Impact of gradient microstructure on strain hardening via activation of multiple deformation mechanisms in CoCrNi medium entropy alloy

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Materials Futures

Materials Futures 2024年第4期3卷 11-21页

作者： Jiaqi Meng Yonghao Zhao Yi Liu Zongyao Li Bo Gao Mengning Xu Weiheng Xia xuefei Chen Hao Zhou Yuntian Zhu Nano and Heterogeneous Materials Center School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094People’s Republic of China School of Materials Science and Engineering Hohai UniversityChanazhou 213200People’s Republic of China Liaoning Academy of Materials Shenyang 110167People’s Republic of China Department of Materials Science and Engineering City University of Hong KongHong Kong Special Administrative Region of China 999077People’s Republic of China

Face centered cubic(FCC)structural medium/high entropy alloys(MEAs),characterized by excellent strength and ductility,have attracted significant attention by the research *** incorporation of gradient structures(GSs)further can enhance their mechanical *** the present research,we employ the rotation acceleration shot peening technique to introduce a GS within the CoCrNi FCC MEA to investigate underlying mechanisms governing the physical deformation processes during the generation of GSs through processing,which the primary goal is mitigating the intrinsic trade-off between strength and *** the microstructures analysis along the depth direction,both pre and post uniaxial tensile plastic deformation,we unveiled that the low stacking fault(SF)energy characteristic of the CoCrNi MEA triggered the emergence of diverse defects in the core *** presence of nanoscale deformation twins,SFs,Lomer–Cottrell dislocation locks and phase transformation from FCC to hexagonal close-packed at twin boundaries synergistically enhanced the strain hardening capacity of the material.

关键词： CoCrNi MEA heterogeneous structure twinning phase transformation strain hardening

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糖尿病合并尿路感染临床特点分析

中国医药 2016年第1期11卷 54-57页

作者：许涵鲍冬青冷雪霏阎胜利青岛大学附属医院内分泌科 266003

目的分析糖尿病合并尿路感染患者的临床特点。方法回顾性分析2012年1月至2013年12月就诊于青岛大学附属医院内分泌科的糖尿病合并尿路感染患者的病历资料。结果1 877例糖尿病患者中有198例发生尿路感染，发生率为10.5%。198例患者中老... 详细信息

目的分析糖尿病合并尿路感染患者的临床特点。方法回顾性分析2012年1月至2013年12月就诊于青岛大学附属医院内分泌科的糖尿病合并尿路感染患者的病历资料。结果1 877例糖尿病患者中有198例发生尿路感染，发生率为10.5%。198例患者中老年女性患者121例，占61.1%；94例患者为无症状性菌尿，占47.5%。病原学培养出125株病原菌，其中革兰阴性菌82株（65.6%）（大肠埃希菌最为常见，为58株），革兰阳性菌25株（20.0%），真菌18株（14.4%）。35例多重耐药患者中培养出36株多重耐药菌，革兰阴性菌对美罗培南、亚胺培南的敏感性较好（均为100%），对氨苄西林的耐药率较高［大肠埃希菌：77.6%（45/58），肺炎克雷伯菌：6/6］；革兰阳性菌对替加环素、替考拉宁的敏感性较高（均为100%），对莫西沙星、左氧氟沙星、苄星青霉素G、罗红霉素等均存在不同程度的耐药性。结论糖尿病合并尿路感染患者中老年女性及无症状性菌尿较常见，应根据病原菌种类及药敏结果，合理筛选抗菌药物。

关键词：糖尿病尿路感染耐药性