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Design high-performance narrowband emitters for blue light-emitting diodes through manipulating resonance structure of aromatic heterocycles

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Science China Chemistry 2025年

作者： Yue Yu Lei Xu Wenle Tan Yuyu Pan Jiyin Xiao Bohan Wang Guangjun Tian Yuguang Ma Lei ying Institute of Polymer Optoelectronic Materials and Devices Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology School of Petrochemical Engineering Shenyang University of Technology Key Laboratory for Microstructural Material Physics of Hebei Province School of Science Yanshan University

Narrowband light-emitting materials play critical roles in improving the color gamut and energy consumption of electroluminescence. Herein we demonstrated that by regulating the ground state resonance structure form of emitters with polycyclic aromatic heterocycles, the high-energy vibration of the C–C bond can be effectively suppressed, resulting in narrow emission like classical cyanine dyes. The designed compounds consist of twist and planar conformation, while having differences in the orientation of the positioning electron-donating(nitrogen) and electron-accepting(carbonyl) groups in the polycyclic aromatic hydrocarbon skeleton. The resulting compound Ac-Ph-Ac with a dominated zwitterionic resonance structure exhibits a relatively wide electroluminescent profile with the full width at half maximum(FWHM) of 42 nm and moderate device performance. In contrast, the “soliton transition” of 2AcPh based on the cyanine limit character effectively suppresses C–C stretching vibration in the polycyclic aromatic heterocycle skeleton, leading to a narrow electroluminescent profile with FWHM of 30 nm(0.16 eV)associated with an impressively high external quantum efficiency of 28.52%, which is among the highest efficiencies of so far reported non-sensitized organic light-emitting diodes.

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An efficient and balanced feature pyramid network: shared-FPN

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Optoelectronics Letters 2025年

作者： Tian Sulong Qin Longfei Pang Wenchao Gao ying Zhao Dexin School of Computer Science and Engineering， Tianjin University of Technology Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology， Tianjin University of Technology

In the field of object detection， it is challenging to achieve a balance between neck complexity and accuracy. To address this issue， we propose an efficient and decoupled neck module called Shared-FPN(Shared Feature Pyramid Network). Our design aims to effectively address the trade-off between these two factors. Neck modules are crucial for effectively fusing multi-scale information in neural network models. However， traditional neck designs， with their single structure， have struggled to significantly improve detection performance. In recent years， the incorporation of neural architecture search techniques in neck design has led to an increase in model complexity. This trade-off between model complexity and detection performance highlights the need for more efficient neck design approaches. Not only does Shared-FPN not increase the number of model parameters and FLOPs， but it also can be easily ported to any of the detection models. It improves on PAFPN by using transposed convolution with a large convolution kernel as the upsampling module， designing spatial pyramidal pooling-fast downsampling(SPPFD) based on shared pooling， and designing shared convolution as the right part module. To evaluate the performance of Shared-FPN in object detection tasks， we conducted experiments on object detection datasets. The results show that Shared-FPN achieved excellent performance across all sizes. In particular， on the VOC 2012 dataset， which contains mostly large objects， Shared-FPN's mAP was improved by 11.2% compared to FPN with YOLOX-s as the detector. On the COCO dataset， which contains mostly small objects， Shared-FPN's mAP was improved by 7.8% compared to FPN and 7.1% compared to PAFPN with Faster RCNN as the detector. Shared-FPN can be easily inserted into any of the detectors for better performance in various scenarios， such as small， medium or large objects.

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胃癌术后吻合口漏的影响因素分析

消化肿瘤杂志（电子版） 2017年第4期9卷 243-247页

作者：曾奕应敏刚魏晟宏叶再生肖军王益林振孟陈路川福建省肿瘤医院胃肠肿瘤外科福建省肿瘤生物治疗重点实验室福建福州350014

目的通过分析胃癌术后吻合口漏的发生情况,探讨胃癌术后吻合口漏的相关因素。方法采用回顾性研究方法,收集福建省肿瘤医院2010年1月至2015年1月收治的2070例胃癌患者的临床资料。比较腹腔镜与开腹行胃癌手术后吻合口漏发生情况,并分析... 详细信息

目的通过分析胃癌术后吻合口漏的发生情况,探讨胃癌术后吻合口漏的相关因素。方法采用回顾性研究方法,收集福建省肿瘤医院2010年1月至2015年1月收治的2070例胃癌患者的临床资料。比较腹腔镜与开腹行胃癌手术后吻合口漏发生情况,并分析影响吻合口漏发生的危险和保护因素。结果腹腔镜下胃癌手术810例(全胃切除术560例,远端胃切除术250例),开腹胃癌手术1260例(全胃切除术840例,远端胃切除420例)。术后吻合口漏总体发生率2.80%(58/2070),腹腔镜术后吻合口漏发生率为1.35%(11/810),开腹术后发生率为3.73%(47/1260),差异具有统计学意义(P=0.001)。多因素回归分析显示:联合脏器切除(B=3.549>0,OR=34.773>1,P=0.000)、糖尿病(B=1.338>0,OR=3.812>1,P=0.000)、术前低蛋白血症(B=0.654>0,OR=1.922>1,P=0.049)、术前新辅助化疗(B=0.694>0,OR=1.530>1,P=0.043)均为独立危险因素,而腹腔镜(B=-1.459<0,OR=0.233<1,P=0.000)为保护性因素。结论对于胃癌手术,腹腔镜手术吻合口漏发生率低于开腹手术,联合脏器切除、糖尿病、术前低蛋白血症、术前新辅助化疗是胃癌术后吻合口漏的高危因素,而腹腔镜手术为胃癌术后吻合口漏的保护性因素,合理应用腹腔镜及恰当处理有助于降低胃癌术后吻合口漏的发生和进展。

关键词：腹腔镜胃切除术胃癌吻合口漏

谱系1和8重组猪繁殖与呼吸综合征病毒的分离鉴定与遗传进化分析

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动物医学进展 2025年第1期46卷 29-37页

作者：邹舟黎颖韦莹莹刘惠僮韦祖樟广西大学动物科学技术学院动物传染病与分子免疫学实验室广西南宁530005 广西壮族自治区兽用生物制品工程研究中心广西南宁530005 广西畜禽繁育与疾病防控重点实验室广西南宁530004

2023年从广西疑似发生猪繁殖与呼吸综合征病毒(PRRSV)感染猪场的病猪肺脏组织中分离到1株PRRSV,将其命名为GXWZ20230831。采用RT-PCR扩增其全基因组序列并测序,分析遗传进化特点。结果显示,GXWZ20230831能够在Marc-145细胞上增殖,且产... 详细信息

2023年从广西疑似发生猪繁殖与呼吸综合征病毒(PRRSV)感染猪场的病猪肺脏组织中分离到1株PRRSV,将其命名为GXWZ20230831。采用RT-PCR扩增其全基因组序列并测序,分析遗传进化特点。结果显示,GXWZ20230831能够在Marc-145细胞上增殖,且产生明显的细胞病变;该毒株全基因组长度为15019个核苷酸(nt),与基因2型PRRSV谱系1 NADC30-like毒株的同源性最高,为94.0%,与基因1型PRRSV代表毒株Lelystad virus同源性最低,仅为60.0%;通过Nsp2氨基酸序列比对,结果发现GXWZ20230831存在NADC30-like典型的131(111+1+19)个氨基酸的不连续缺失模式;与美洲型代表株VR2332相比,GXWZ20230831的GP5蛋白在非中和抗原表位发生了V27A、V185A以及R191K 3处突变,同时在GP5蛋白中存在4个潜在的N-糖基化位点;构建的全基因组序列、nsp2基因、ORF5基因遗传进化树均显示该毒株处于谱系1的分支;重组分析表明,GXWZ20230831是1株以谱系1经典毒株NADC30为骨架,谱系8毒株提供重组片段的重组毒株,重组断点位于基因组的nsp1(458-1821 nt)和Nsp4(5405-8179 nt)中。研究结果可为掌握广西地区的PRRSV遗传变异规律提供参考,为制定防控措施提供科学依据。

关键词：猪繁殖与呼吸综合征病毒分离鉴定重组遗传进化分析

Acceptor concentration dependent Fo?rster resonance energy transfer in nanocrystal-molecule complexes revealed by spectral analysis

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Optoelectronics Letters 2025年

作者： Rongxin ZHANG Zixiang ZHOU Lei WANG Xin ZHANG ying LIANG Guijie LIANG Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices， Hubei University of Arts and Science

A nanocrystal-molecule complex composed of CdSe donor and Rhodamine B (RhB) acceptor is prepared to investigate the effect of accepter-donor ratio on the Fo?rster resonance energy transfer (FRET) process. To highlight the FRET process， the energy level alignment between CdSe and RhB is purposefully designed and CdSe nanocrystal is coated with a wide band-gap ZnS shell. The carrier dynamics is observed via combined spectral analysis. The results reveal clear FRET process between the CdSe donor and RhB acceptor. The FRET is enhanced by increasing RhB/CdSe ratio and a gradual saturation will be present at high RhB concentration.

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CIK与DC细胞联合治疗145例晚期恶性实体瘤

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福建医科大学学报 2007年第3期41卷 218-221页

作者：应敏刚郑秋红陈奕贵谢云青龚福生陈路川吴君心郑天荣福建医科大学教学医院福建省肿瘤医院肿瘤外科研究室福州350014

目的研究细胞因子诱导的杀伤细胞(CIK)和树突状细胞(DC)联合治疗晚期肿瘤。方法从外周血分离单个核细胞,体外经GM-CSF和白细胞介素4(IL-4)诱导产生DC细胞,淋巴细胞经干扰素γ(IFN-γ)、IL-2、CD3单抗和IL-1α体外诱导产生CIK细胞,采用... 详细信息

目的研究细胞因子诱导的杀伤细胞(CIK)和树突状细胞(DC)联合治疗晚期肿瘤。方法从外周血分离单个核细胞,体外经GM-CSF和白细胞介素4(IL-4)诱导产生DC细胞,淋巴细胞经干扰素γ(IFN-γ)、IL-2、CD3单抗和IL-1α体外诱导产生CIK细胞,采用流式细胞术检测CIK的表型,并回输患者进行治疗,至少接受3次治疗。结果82例可评价病灶的患者中,3例完全缓解(CR),7例部分缓解(PR);31例不可评价病灶的患者中,7例患者胸腹水消失,与治疗前相比,治疗后患者CD3+和CD8+明显升高(P<0.05)。结论CIK细胞治疗晚期恶性实体瘤有一定的临床疗效,为该类患者的治疗提供一种有效的免疫治疗手段。

关键词：杀伤细胞树突细胞细胞,培养的免疫疗法肿瘤

负责任的社会科学数据治理的内涵、特征与层次

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现代情报 2025年第1期45卷 124-134页

作者：王英卢国强湖北大学历史文化学院湖北武汉430062 吉林大学商学与管理学院吉林长春130012

[目的/意义]“十四五”国家哲学社会科学发展规划的背景下,负责任的数据治理成为促进社会科学数据开放共享、推进社会科学研究与创新的重要驱动力,亟须探索负责任的社会科学数据治理的基础理论。[方法/过程]运用主题分析法,探寻负责任... 详细信息

[目的/意义]“十四五”国家哲学社会科学发展规划的背景下,负责任的数据治理成为促进社会科学数据开放共享、推进社会科学研究与创新的重要驱动力,亟须探索负责任的社会科学数据治理的基础理论。[方法/过程]运用主题分析法,探寻负责任的数据治理的概念要素及维度,按照国际标准ISO704:2009的概念关系,结合社会科学数据的特性,阐释负责任的社会科学数据治理的内涵及其与相关概念的关系、特征、层次与内容,旨在构建一个较为全面且系统的概念体系。[结果/结论]负责任的社会科学数据治理是多元主体在现有的数据治理环境之下,运用相应的治理机制和手段,将负责任的研究与创新的理念和原则融入社会科学数据全生命周期,以确保所有涉及社会科学数据的流程和成果的责任性的过程,具有责任性、反思性、前瞻性、开放性和工具性特征,可划分为战略层、数据层和活动层。

关键词：社会科学数据负责任的数据治理数据治理

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脱离监护之侵权的认定及责任

北京理工大学学报（社会科学版） 2025年第1期27卷 56-65页

作者：朱虎王滢中国人民大学民商事法律科学研究中心北京100872

将监护定位于职责或权利,监护关系的外部效力都具有绝对性,对其侵犯需适用《民法典》侵权责任编规则。侵权人包括令被监护人从监护状态中脱离的行为人,以及延续其脱离状态的收买人等在后行为人。即便其他行为也可能延续被监护人脱离监... 详细信息

将监护定位于职责或权利,监护关系的外部效力都具有绝对性,对其侵犯需适用《民法典》侵权责任编规则。侵权人包括令被监护人从监护状态中脱离的行为人,以及延续其脱离状态的收买人等在后行为人。即便其他行为也可能延续被监护人脱离监护的状态,这一假设原因也不减免在后行为人的损害赔偿责任。无过失的受托监护人并非侵权人。除监护人的身份利益之外,脱离监护关系同时有损被监护人的人格利益,因此被亲生父母出卖的子女可主张侵害人格权的损害赔偿。脱离监护型侵权的损害赔偿范围包括被监护人成年后持续产生的损害,损害赔偿请求权适用普通诉讼时效。精神损害赔偿请求权的主体不应限于父母和其他近亲属,非近亲属监护人等也可主张。

关键词：监护权脱离监护身份关系精神损害赔偿

Homologous CoS2 interface with directed electron transfer and strong chloridion repulsion for efficient seawater oxidation

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Science China Chemistry 2025年

作者： Yuan Tian Jiang-Bo Chen Jie ying Ge Tian Yu-Xuan Xiao Yi Lu Si-Ming Wu Wei Geng Ling Shen Xiao-Yu Yang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and School of Materials Science and Engineering and Shenzhen Research Institute & Laoshan Laboratory Wuhan University of Technology School of Chemical Engineering and Technology Sun Yat-Sen University National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu Laboratory

Seawater electrolysis is a highly promising method to produce high energy density hydrogen,especially in dry areas that have scarce freshwater ***,application of seawater electrolysis is confronted by two major problems associated with catalysts employed for the anodic oxygen evolution reaction （OER） including the competitive hypochlorite evolution reaction（HCER） and strong chloridion （Cl–） triggered *** studies aimed at overcoming these problems,a facile method has been developed to synthesize a homologous CoS2heterojunction as an OER *** to a difference in work functions at the interface and increased electron density,this material has directed electron transfer and strong chloridion repulsion properties,*** have shown that CoS2achieves low overpotentials of 289 and 322 mV at 10 mA cm-2current density in respective alkaline （1 M KOH） and alkaline simulated seawater ***,the outstanding stability of CoS2is reflected in a negligible decline in activity during promotion of the OER for 100 *** of density functional theory calculations reveal that the homologous CoS2heterojunction promotes directed electron transport for optimizing adsorption/desorption of reactive species and heightens the Cl-adsorption energy for strongly repulsing Cl-,phenomena that enhance OER performance in alkaline simulated seawater.

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