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Controllable Photoelectric Properties of Carbon Dots and Their Application in Organic Solar Cells

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Chinese Journal of Polymer Science 2022年第1期40卷 7-20页

作者： Wen-Sheng zhao Xin-Xin Li han zha Yong-Zhen Yang Ling-Peng Yan Qun Luo Xu-Guang Liu Hua Wang Chang-Qi Ma Bing-She Xu Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Printed Electronics Research Center Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of Sciences(CAS)Suzhou 215123China Ministry of Education and College of Textile Engineering Taiyuan University of TechnologyJinzhong 030600China

Organic solar cells are a current research hotspot in the energy field because of their advantages of lightness,translucency,roll to roll printing and building *** the rapid development of small molecule acceptor materials with high-performance,the efficiency of organic solar cells has been greatly *** improving the device efficiency and stability and reducing the cost of active layer materials will contribute to the industrial development of organic solar *** a novel type of carbon nanomaterials,carbon dots gradually show great application potential in the field of organic solar cells due to their advantages of low preparation cost,non-toxicity and excellent photoelectric ***,the synthesis and classification of carbon dots are briefly ***,the photoelectric properties of carbon dots and their adjusting,including adjustable surface energy level structure,good film-forming performance and up/down conversion characteristics are ***,based on these intrinsic properties,the feasibility and advantages of carbon dots used in organic solar cells are ***,the application progress of carbon dots in the active layer,hole transport layer,electron transport layer,interface modification layer and down-conversion materials of organic solar cells is also ***,the application progress of carbon dots in organic solar cells is *** further research directions,including in-depth exploration of the controllable preparation of carbon dots and their application in the fields of interface layer and up/down conversion for improving efficiency and stability of device are pointed out.

关键词： Organic solar cells Carbon dots Interface layer Power conversion efficiency Stability

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蓝靛果忍冬不同品种生长发育习性变化分析

北方果树 2024年第4期 13-16页

作者：金鸽韩扎拉干白拉包玲玉王涵华佳文意拉拉塔刘丽丽通辽市林业和草原科学研究所内蒙古通辽028000 通辽市鑫丰林业勘察规划设计有限公司内蒙古通辽028000 奈曼旗大柳树国有治沙林场内蒙古通辽028300

该试验以蓝靛果忍冬‘蓓蕾’‘蓝精灵’和‘乌蓝’3个品种为研究对象,以其新梢生长、果实纵横径、单果鲜重及果实口感评价为指标,对蓝靛果忍冬不同品种生长发育情况进行分析研究。结果表明,蓝靛果忍冬各品种新梢生长和果实发育有较大差... 详细信息

该试验以蓝靛果忍冬‘蓓蕾’‘蓝精灵’和‘乌蓝’3个品种为研究对象,以其新梢生长、果实纵横径、单果鲜重及果实口感评价为指标,对蓝靛果忍冬不同品种生长发育情况进行分析研究。结果表明,蓝靛果忍冬各品种新梢生长和果实发育有较大差异,经综合分析,从好到次的排序为‘蓝精灵’‘乌蓝’‘蓓蕾’。蓝靛果忍冬各品种新梢生长、果实发育高峰期也不尽相同,新梢生长高峰期有两次,第1次在4月中旬,第2次在4月末至5月中旬;果实纵横径生长高峰期在5月中旬;单果鲜重增长高峰期在5月中旬至6月初。因此,在蓝靛果忍冬栽培管理中,应当在新梢和果实生长高峰期加强果园肥水管理,促进果实发育,达到高产,获得最大的经济效益。

关键词：蓝靛果忍冬新梢长果实纵横径单果鲜重

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Evolutionary dynamics and comparative pathogenicity of clade 2.3.4.4b H5 subtype avian in fl uenza viruses, China, 2021-2022

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VIROLOGICA SINICA 2024年第3期39卷 358-368页

作者： Lin, Siru Chen, Junhong Li, Ke Liu, Yang Xie, Shumin zha, Aimin Xin, Aiguo han, Xinyu Shi, Yuting Xu, Lingyu Liao, Ming Jia, Weixin South China Agr Univ Coll Vet MedGuangdong Engn Lab Medicament Zoonosi Natl Avian fluenza Para Reference LabKey Lab Zoon Guangdong Engn Lab Medicament Zoonosis Prevent & C Guangzhou 510642 Peoples R China Minist Agr Key Lab Zoonoses Key Lab Anim Vaccine Dev Guangzhou 510642 Peoples R China Yunnan Anim Sci & Vet Inst Inst Poultry Management & Dis Kunming 650000 Peoples R China

The recent concurrent emergence of H5N1, H5N6, and H5N8 avian influenza viruses (AIVs) has led to significant avian mortality globally. Since 2020, frequent human-animal interactions have been documented. To gain insight into the novel H5 subtype AIVs (i.e., H5N1, H5N6 and H5N8), we collected 6102 samples from various regions of China between January 2021 and September 2022, and identified 41 H5Nx strains. Comparative analyses on the evolution and biological properties of these isolates were conducted. Phylogenetic analysis revealed that the 41 H5Nx strains belonged to clade 2.***.4.4b, with 13 related to H5N1, 19 to H5N6, and 9 to H5N8. Analysis based on global 2.***.4.4b viruses showed that all the viruses described in this study were likely originated from H5N8, exhibiting a heterogeneous evolutionary history between H5N1 and H5N6 during 2015-2022 worldwide. H5N1 showed a higher rate of evolution in 2021-2022 and more sites under positive selection pressure in 2015-2022. The antigenic profiles of the novel H5N1 and H5N6 exhibited notable variations. Further hemagglutination inhibition assay suggested that some A(H5N1) viruses may be antigenically distinct from the circulating H5N6 and H5N8 strains. Mammalian challenge assays demonstrated that the H5N8 virus (21GD001_H5N8) displayed the highest pathogenicity in mice, followed by the H5N1 virus (B1557_H5N1) and then the H5N6 virus (220086_H5N6), suggesting a heterogeneous virulence profile of H5 AIVs in the mammalian hosts. Based on the above results, we speculate that A(H5N1) viruses have a higher risk of emergence in the future. Collectively, these findings unveil a new landscape of different evolutionary history and biological characteristics of novel H5 AIVs in clade 2.***.4.4b, contributing to a better understanding of designing more effective strategies for the prevention and control of novel H5 AIVs.

关键词： Avianinfluenza virus (AIV) H5 subtypes AIVs Evolutionary Pathogenicity

Potential value of detection of minimal residual disease in colorectal cancer following radical resection

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Chinese Journal of Cancer Research 2024年第4期36卷 442-454页

作者： Wenji Pu Fang Chen Yuan Tang Yanling Qu Yunzhu han Jiandong zha Jing Jin Fengming Kong Medical Department of Shenzhen University/General Hospital of Shenzhen University/Academy of Clinical Medicine of Shenzhen University Department of Clinical Oncology the University of Hong Kong-Shenzhen Hospital Department of Radiotherapy National Cancer Center/National Cancer Clinical Medical Research Center/Shenzhen Hospital Cancer Hospital of Peking Union Medical College Chinese Academy of Medical Sciences

Although there has been significant advancement in the identification and management of colorectal cancer(CRC)in recent years, there is still room for improvement in the current standard treatment regimen. One area of concern is the lack of reliable tumor markers to predict treatment efficacy and guide tailored care. Due to its dynamic,effective, and non-invasive benefits over tissue biopsy, the detection of minimal or molecular residual lesions(MRD) based on circulating tumor DNA(ctDNA) is beneficial to the clinical development of drugs for patients with CRC after radical treatment, as well as for continuous monitoring of tumor recurrence and malignancy molecular gene evolution. The detection of ctDNA can currently be used to guide individual postoperative auxiliary treatment decisions(upgrade or downgrade treatment) in CRC, stratify the risk of clinical recurrence more precisely, and predict the risk of recurrence in advance of imaging examination, according to a large number of observational or prospective clinical studies. With increasing clarity comes the possibility of selecting a regimen of treatment based on postoperative ctDNA, which also improves the accuracy of clinical recurrence risk assessment for CRC. Therefore, it is anticipated that the identification of ctDNA would alter the current framework for dealing with CRC and lead to individualized, stratified precision therapy; however, additional confirmation will require subsequent high-quality, prospective, large-scale randomized controlled studies. This article will provide an overview of the definition and clinical significance of MRD, the primary indications and technological challenges for MRD detection, along with the advancement in clinical research about ctDNA detection following radical resection of the CRC.

关键词： Colorectal cancer biomarkers circulating tumor DNA minimal residual disease prognosis recurrence

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敏捷卫星的地震灾后快速响应规划

地震工程与工程振动 2019年第6期39卷 32-37页

作者：张强李晗吕伟赵晗吴畏吴限德北京空间飞行器总体设计部北京100094 哈尔滨工程大学航天与建筑工程学院黑龙江哈尔滨150001

我国是世界上地震活动最为频繁,地震灾害最为严重的国家之一,重大地震灾害影响面积广、破坏性强且灾情复杂,单一的地面调查在短时间内无法获取全面的灾情信息。因此,利用敏捷卫星姿态机动灵活性,可对地震覆盖区域中的人口密集区域、受... 详细信息

我国是世界上地震活动最为频繁,地震灾害最为严重的国家之一,重大地震灾害影响面积广、破坏性强且灾情复杂,单一的地面调查在短时间内无法获取全面的灾情信息。因此,利用敏捷卫星姿态机动灵活性,可对地震覆盖区域中的人口密集区域、受灾严重区域等重点目标区域进行灵活观测,从而支持相关机构进行灾情快速评估。由于卫星在轨观测能力有限,因此需要根据重点目标的优先级对其进行成像规划。本文基于目标优先级,采用正弦机动方法对敏捷卫星在轨成像全过程进行规划。成像规划结果表明:采用基于目标优先级和正弦机动方法的敏捷卫星成像过程规划方法,能够在较短时间内对地震覆盖区域中的重点目标进行可行有效的成像过程规划,为地震灾后快速响应评估提供参考。

关键词：地震灾后响应敏捷卫星成像规划正弦机动目标优先级

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基于比较优势与互补性的中俄水产品贸易研究

价格月刊 2018年第8期 33-40页

作者：佟光霁查涵恺东北林业大学经济管理学院

基于1996年~2016年中俄水产品贸易数据,分析了两国水产品贸易现状,并在此基础上运用相关指数分析了两国水产品贸易特征,包括比较优势和互补性。结果表明,中国水产品比较优势明显高出俄罗斯,中国两类、俄罗斯三类水产品在对方市场具有比... 详细信息

基于1996年~2016年中俄水产品贸易数据,分析了两国水产品贸易现状,并在此基础上运用相关指数分析了两国水产品贸易特征,包括比较优势和互补性。结果表明,中国水产品比较优势明显高出俄罗斯,中国两类、俄罗斯三类水产品在对方市场具有比较优势;俄中水产品互补性高于中俄水产品互补性,中国两类、俄罗斯一类水产品与对方市场具有互补性。

关键词：中俄水产品贸易比较优势互补性

A review of artificial intelligence applications in high-speed railway systems

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High-Speed Railway 2024年第1期2卷 11-16页

作者： Xuehan Li Minghao Zhu Boyang Zhang Xiaoxuan Wang zha Liu Liang han School of Electronic and Information Engineering Beijing Jiaotong UniversityBeijing 100044China School of Economics and Management Beijing Jiaotong UniversityBeijing 100044China Business School of Hunan University Changsha 410082China

In recent years,the global surge of High-speed Railway(HSR)revolutionized ground transportation,providing secure,comfortable,and punctual *** next-gen HSR,fueled by emerging services like video surveillance,emergency communication,and real-time scheduling,demands advanced capabilities in real-time perception,automated driving,and digitized services,which accelerate the integration and application of Artificial Intelligence(AI)in the HSR *** paper first provides a brief overview of AI,covering its origin,evolution,and breakthrough applications.A comprehensive review is then given regarding the most advanced AI technologies and applications in three macro application domains of the HSR system:mechanical manufacturing and electrical control,communication and signal control,and transportation *** literature is categorized and compared across nine application directions labeled as intelligent manufacturing of trains and key components,forecast of railroad maintenance,optimization of energy consumption in railroads and trains,communication security,communication dependability,channel modeling and estimation,passenger scheduling,traffic flow forecasting,high-speed railway smart ***,challenges associated with the application of AI are discussed,offering insights for future research directions.

关键词： High-speed railway Artificial intelligence Intelligent distribution Intelligent control Intelligent scheduling

有机太阳能电池热失效机制及三元共混提升其热稳定性研究进展

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化学学报 2023年第2期81卷 131-145页

作者：查汉房进闫翎鹏杨永珍马昌期太原理工大学材料科学与工程学院太原030024 中国科学院苏州纳米技术与纳米仿生研究所创新实验室&印刷电子研究中心苏州215123 太原理工大学新材料界面科学与工程教育部重点实验室太原030024 山西浙大新材料与化工研究院太原030032

有机太阳能电池(Organic solar cells,OSCs)作为一种新兴高效太阳能电池,近年来得到飞速发展.目前OSCs的光电转换效率(Power conversion efficiency,PCE)已经达到19%以上,初见商业化应用曙光.但其稳定性方面尚未发展成熟,尤其在制备和... 详细信息

有机太阳能电池(Organic solar cells,OSCs)作为一种新兴高效太阳能电池,近年来得到飞速发展.目前OSCs的光电转换效率(Power conversion efficiency,PCE)已经达到19%以上,初见商业化应用曙光.但其稳定性方面尚未发展成熟,尤其在制备和工作过程中电池器件需要经历高温考验,电池的热稳定性要求高.三元共混策略是在传统的二元OSCs活性层中引入第三组分,利用第三组分调控分子间的相互作用,在实现高效光电转换效率的同时有效提高器件热稳定性,展现出了极大的应用潜力.本综述首先从器件热衰减过程出发,总结了OSCs热衰减过程中包括:热致活性层形貌变化、各层材料之间的互扩散行为以及界面老化等相关机制.在此基础上,重点介绍了三元策略在提高OSCs热稳定性方面的应用进展和作用机制.最后,对三元策略在OSCs中的应用发展进行总结并展望,指出第三组分的针对性选择以及作用机制解析是三元OSCs面临的关键问题和挑战.

关键词：有机太阳能电池热稳定性效率三元策略

低轨小卫星星座对空间物体登记制度的挑战与应对

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空间碎片研究 2022年第2期22卷 23-31页

作者：查汉辉武汉大学法学院武汉430000

低轨小卫星星座规模庞大、构型复杂,给现行空间物体登记制度的适用带来了严峻挑战。《登记公约》建立了空间物体的强制登记制度,但其仅适用于“一个空间物体”,并未对多个卫星组网形成的“星座”该如何登记作出规定,这导致根据现行登记... 详细信息

低轨小卫星星座规模庞大、构型复杂,给现行空间物体登记制度的适用带来了严峻挑战。《登记公约》建立了空间物体的强制登记制度,但其仅适用于“一个空间物体”,并未对多个卫星组网形成的“星座”该如何登记作出规定,这导致根据现行登记制度对星座进行登记时难以实现该制度的立法目的。此外,面对低轨小卫星星座的不断发展,《登记公约》中诸多表述不清晰所引起的空间物体未登记、拖延登记、登记信息不充分等问题也将更为严峻。在此背景下,有必要构建低轨小卫星星座的整体登记机制,并对现行空间物体登记制度加以完善,推动其有效施行,从而增强外空活动中的透明度,尽可能避免损害的发生。

关键词：小卫星星座《登记公约》空间交通管理空间环境治理