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Biomimetic leaf structures for ultra-thin electromagnetic wave absorption

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Nano Research 2024年第5期17卷 4507-4516页

作者： Shikun Hou Ying Wang Feng Gao fei jin Benfeng Zhu Qiong Wu Hongliang Ge Zhihai Cao Hua Yang Magnetism Key Laboratory of Zhejiang Province&College of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018China Department of Materials Science and Engineering Guangdong Technion-Israel Institute of TechnologyShantou 515063China Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco-Dyeing&Finishing of Textiles Ministry of EducationZhejiang Sci-Tech UniversityHangzhou 310018China

Ultra-thin electromagnetic wave(EMW)absorbers present challenging demands on EMW absorption *** inspiration from heather leaf structures,this study introduces an innovative design strategy for EMW absorbing material,proposing biomimetic leaf SnO_(2) structures(bio-SnO_(2))on carbon fabric(CF).By employing leaf-shaped SnS2 as precursors,biomimetic leaf SnO_(2) nanostructures are constructed on CF surface after a simple thermal treatment,resulting in bio-SnO_(2)@CF *** results indicate that bio-SnO_(2)@CF exhibits an exceptional minimum reflection loss of-54.8 dB at an incredibly thin thickness of 1.2 *** cross section(RCS)simulations further validate the outstanding EMW attenuation ability of bio-SnO_(2)@CF,attaining a maximum RCS reduction value of 16.9 dBm^(2) at an incident wave angle ofθ=0°.This novel research showcases the biomimetic structural design strategy and its remarkable function in enhancing the EMW absorbing performance at ultra-thin absorber thickness.

关键词： biomimetic leaf structures electromagnetic wave absorption ultra-thin thickness

Optimization Analysis of Human Resource Management Strategies of Nantong University,a Local Comprehensive University in China

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Proceedings of Business and Economic Studies 2024年第2期7卷 1-7页

作者： fei jin Graduate School Manila CampusUniversity of the EastManila 1008Philippines

This study analyzes the current situation and challenges of Nantong University amid the rapid development of higher education,addressing aspects such as faculty structure,administrative management efficiency,and promotion *** questionnaire surveys and field research,coupled with SWOT analysis and various theoretical methods,a comprehensive analysis was conducted on Nantong University’s internal and external *** study proposes an improved comprehensive development strategy and implementation measures,which include updating management concepts,strengthening professional training,optimizing employment conditions,and improving salary ***,this study provides practical strategies for human resource management and the transformational development of Nantong University and other local comprehensive universities.

关键词： Local comprehensive universities Transformation and development Human resource management SWOT

Highly efficient ternary organic solar cells with excellent open-circuit voltage and fill factor via precisely tuning molecular stacking and morphology

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Science China Chemistry 2024年第3期67卷 963-972页

作者： Dinghong Sun Zhenyu Chen Jianfeng Zhang Wei Song jingyu Shi jintao Zhu Yuanyuan Meng fei jin Shuncheng Yang Ziyi Ge Faculty of Electrical Engineering and Computer Science Ningbo UniversityNingbo 315211China Faculty of Material Science and Chemical Engineering Ningbo UniversityNingbo 315211China Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049China Department of Chemical and Environmental Engineering University of Nottingham NingboNingbo 315100China

The micro-morphology and molecular stacking play a key role in determining the charge transport process and nonradiative energy loss, thus impacting the performances of organic solar cells(OSCs). To address this issue, a non-fullerene acceptor PhC6-IC-F with alkylbenzene side-chain, possessing optimized molecular stacking, complementary absorption spectra and forming a cascade energy level alignment in the PM6:BTP-eC9 blend, is introduced as guest acceptor to improve efficiency of ternary OSCs. The bulky phenyl in the side-chain can regulate crystallinity and optimizing phase separation between receptors in ternary blend films, resulting in the optimal phase separations in the ternary films. As a result, high efficiencies of 18.33% as photovoltaic layer are obtained for PhC6-IC-F-based ternary devices with excellent fill factor(FF) of 78.92%. Impressively, the ternary system produces a significantly improved open circuit voltage(V_(oc)) of 0.857 V compared with the binary device,contributing to the reduced density of trap states and suppressed non-radiative recombination result in lower energy loss. This work demonstrates an effective approach for adjusting the aggregation, molecular packing and fine phase separation morphology to increase V_(oc) and FF, paving the way toward high-efficiency OSCs.

关键词： alkylbenzene side-chain morphology regulation ternary blends organic solar cells

Molecular phylogeny and taxonomy of Phlomoides(Lamiaceae subfamily Lamioideae)in China:Insights from molecular and morphological data

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Plant Diversity 2024年第4期46卷 462-475页

作者： Yue Zhao Ya-Ping Chen Bryan T.Drew fei Zhao Maryam Almasi Orzimat T.Turginov jin-fei Xiao Abdul G.Karimi Yasaman Salmaki Xiang-Qin Yu Chun-Lei Xiang CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau&Inner Mongolia Key Laboratory of Grassland Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010000Inner MongoliaChina Department of Biology University of Nebraska at KearneyKearneyNE 68849USA CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chinese Academy of SciencesChengdu Institute of BiologyChengdu 610042SichuanChina Center of Excellence in Phylogeny of Living Organisms Department of Plant ScienceCollege of ScienceUniversity of TehranP.O.Box 14155-6455TehranIran Institute of Botany Academy of Sciences of the Republic of UzbekistanTashkent 100047Uzbekistan Faculty of Biology Department of Botany and Plant PhysiologyNational University of Uzbekistan named after Mirzo UlugbekTashkent 100174Uzbekistan Faculty of Pharmacy Kabul University1006 KabulAfghanistan

Phlomoides,with 150-170 species,is the second largest and perhaps most taxonomically challenging genus within the subfamily Lamioideae(Lamiaceae).With about 60 species,China is one of three major biodiversity centers of *** some Phlomoides species from China have been included in previous molecular phylogenetic studies,a robust and broad phylogeny of this lineage has yet to be ***,given the myriad new additions to the genus,the existing infrageneric classification needs to be evaluated and ***,we combine molecular and morphological data to investigate relationships within Phlomoides,with a focus on Chinese *** observed that plastid DNA sequences can resolve relationships within Phlomoides better than nuclear ribosomal internal and external transcribed spacer regions(nrITS and nrETS).Molecular phylogenetic analyses confirm the monophyly of Phlomoides,but most previously defined infrageneric groups are not *** addition,morphological analysis demonstrates the significant taxonomic value of eight characters to the *** on our molecular phylogenetic analyses and morphological data,we establish a novel section Notochaete within Phlomoides,and propose three new combinations as well as three new *** study presents the first molecular phylogenetic analyses of Phlomoides in which taxa representative of the entire genus are included,and highlights the phylogenetic and taxonomic value of several morphological characters from species of Phlomoides from *** study suggests that a taxonomic revision and reclassification for the entire genus is necessary in the future.

关键词： Lamioideae Molecular phylogenetics Morphology Phlomideae Taxonomy

Screening of morphology-related genes based on predatorinduced transcriptome sequencing and the functional analysis of Dagcut gene in Daphnia galeata

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Current Zoology 2024年第4期70卷 440-452页

作者： Ya-Qin Cao Ya-Jie Zhao Hui-Ying Qi jin-fei Huang Fu-Cheng Zhu Wen-Ping Wang Dao-Gui Deng School of Life Science Huaibei Normal UniversityHuaibei 235000AnhuiChina

High fish predation pressure can trigger"induced defense"in Daphnia species,resulting in phenotypic plasticity in morphology,behavior,or life-history *** molecular mechanisms of defense morphogenesis(e.g.,the tail spine and helmet)in Daphnia remain *** the pres-ent study,the tail spine,helmet,and body of Daphnia galeata under fish and non-fish kairomones conditions were collected for transcriptome analysis.A total of 24 candidate genes related to the morphological defense of *** were identified,including 2 trypsin,one cuticle protein,1 C1qDC protein,and 2 ferritin *** function of the Dagcut gene(*** cuticle protein gene)in relation to tail spine morphology was assessed using RNA interference(RNAi).Compared with the EGFP(Enhanced green fluorescent protein)treatment,after RNAi,the expression levels of the Dagcut gene(*** cuticle protein gene)showed a significant ***,the tail spines of the offspring pro-duced by *** after RNAi of the Dagcut gene appeared curved during the *** whole-mount in situ hybridization,a clear signal site was detected on the tail spine of *** before RNAi which disappeared after *** results suggest that the Dagcut gene may play an important role in tail spine formation of ***,and will provide a theoretical basis for studying the molecular mechanisms of the morpho-logical plasticityin cladocera inthefuture.

关键词： Dagcut Daphnia galeata fish kairomones RNAi tail spine transcriptome sequencing.

Complement activation targeted inhibitor C2-FH ameliorates acetaminophen-induced liver injury in mice

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World Journal of Hepatology 2024年第10期16卷 1188-1198页

作者： Chun-Mei Li Tian Sun Mou-Jie Yang Zhi Yang Qing Li Jia-Lin Shi Chong Zhang Jun-fei jin Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair the Affiliated Hospital of Guilin Medical UniversityGuilin 541001Guangxi Zhuang Autonomous RegionChina Guangxi Health Commission Key Laboratory of Basic Research in Sphingolipid Metabolism Related Diseases the Affiliated Hospital of Guilin Medical UniversityGuilin 541001Guangxi Zhuang Autonomous RegionChina China-United States Lipids in Health and Disease Research Center Guilin Medical UniversityGuilin 541001Guangxi Zhuang Autonomous RegionChina Laboratory of Hepatobiliary and Pancreatic Surgery the Affiliated Hospital of Guilin Medical UniversityGuilin 541001Guangxi Zhuang Autonomous RegionChina

BACKGROUND Complement activation is recognized as an important factor in the progression of liver damage caused by acetaminophen(APAP).However,the role of the complement inhibitor C2-FH in APAP-induced liver injury remains *** To explore C2-FH in protecting against APAP-induced liver injury by inhibiting complement *** A model of APAP-induced liver injury was used to study the protective effect of C2-FH on liver injury.C2-FH was administered through intraperitoneal injection 30 minutes after APAP *** detected the effects of C2-FH on liver function,inflammatory response and complement ***,RNA-sequencing(RNA-Seq)analysis was conducted to understand the mechanism through which C2-FH provides protection against APAP-induced liver *** C2-FH inhibited the increase in serum alanine aminotransferase activity,aspartate aminotransferase activity and lactate dehydrogenase,and reduced liver tissue necrosis caused by ***,it attenuated the inflammatory response and inhibited complement activation in APAP-induced liver ***-Seq analysis provided additional explanations for the protective role of C2-FH against APAP-induced liver *** C2-FH attenuates APAP-induced liver injury by inhibiting complement activation.

关键词： C2-FH Complement Complement activation Acetaminophen-induced liver injury Inflammation

数字经济对区域一体化的影响及其机制研究——基于长三角26个地级市的面板数据

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世界地理研究 2024年第7期33卷 128-138页

作者：金飞徐长乐南通大学江苏长江经济带研究院南通226019 华东师范大学地理科学学院上海200241

数字经济时代是进一步推进区域一体化战略的重要机遇。在理论分析数字经济与区域一体化因果关系的基础上,基于2013—2020年长三角地区26个地级市的相关数据,构建数字经济与区域一体化评价指标体系,并运用面板数据固定效应模型,实证检验... 详细信息

数字经济时代是进一步推进区域一体化战略的重要机遇。在理论分析数字经济与区域一体化因果关系的基础上,基于2013—2020年长三角地区26个地级市的相关数据,构建数字经济与区域一体化评价指标体系,并运用面板数据固定效应模型,实证检验数字经济对区域一体化的影响及其作用机制。研究发现:①数字经济的发展能够显著推进地区区域一体化进程,且从细分维度而言,数字基础设施对区域一体化的正向促进作用最大,数字产业次之;②优化区域资本、技术和人力要素配置是数字经济促进区域一体化的重要路径,其中资本要素配置水平的提升对数字经济的区域一体化效应影响最大。因此,进一步深化区域一体化应提升地区数字经济发展水平,持续推进和完善数字基础设施建设,加强高等学历人才的培养,不断激发数字经济对区域一体化的驱动作用。

关键词：数字经济区域一体化要素配置作用机制长三角

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清朝“大一统”观的历史书写

河北学刊 2024年第1期44卷 53-59页

作者：李金飞中共中央党校(国家行政学院)社会和生态文明教研部中共中央党校(国家行政学院)铸牢中华民族共同体意识研究基地

清朝是由少数民族满族所建,入关后尤为重视文治。在帝王的亲自干预和朝廷主导下,开设了大量史馆,形成了连续不间断的修史系统。史书文本的建构是“大一统”观指导下的文化实践活动,又从不同视角立体书写着清朝孜孜追求的“大一统”观。... 详细信息

清朝是由少数民族满族所建,入关后尤为重视文治。在帝王的亲自干预和朝廷主导下,开设了大量史馆,形成了连续不间断的修史系统。史书文本的建构是“大一统”观指导下的文化实践活动,又从不同视角立体书写着清朝孜孜追求的“大一统”观。清朝通过“明清易代”的史学表达传递出对“正统”地位的追求;开创方略体记录王朝战争史昭示帝王“武功”,刻画了清帝天下共主的形象;以一统志为核心的系列志书编纂,则是为着重书写清朝远迈前代的“大一统”疆域规模。清朝如何利用史书文本来书写“大一统”观念,是一个应当给予认真思考和深入探索的重要问题。

关键词：清朝 “大一统” 历史书写史馆修史

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多工况下桥梁伸缩装置的动态特性及噪声评估

机械设计与制造 2024年第10期 215-220页

作者：曹劲飞陈晶长安大学工程机械学院陕西西安710064

对某新型160型模数式桥梁伸缩装置车辆行驶噪声进行了研究。为获得不同工况车辆驶过时系统响应规律,通过ANSYS分别对整体结构做瞬态分析、对中梁、边梁型钢做模态分析进行确定;之后将响应规律转化为声学激励。联合有限元法以及边界元法... 详细信息

对某新型160型模数式桥梁伸缩装置车辆行驶噪声进行了研究。为获得不同工况车辆驶过时系统响应规律,通过ANSYS分别对整体结构做瞬态分析、对中梁、边梁型钢做模态分析进行确定;之后将响应规律转化为声学激励。联合有限元法以及边界元法,利用ANSYS Workbench中Harmonic Acoustic模块进行声学分析,得到人耳敏感频率段不同远场处A声级曲线,最大A声级出现频率以及伸缩装置适宜安装位置。为验证仿真结果可靠性,与文献试验结果进行对比。结果表明,上述方法可以有效地评估伸缩装置车辆行驶噪声,结果具有较高可靠性。

关键词：模数式伸缩装置多种复杂工况有限元法动态特性分析边界元法 A声级曲线

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