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Defence Technology（防务技术） 2022年第10期18卷 1886-1894页

作者： Shuai-da Zhu Zi-chen Hu yu-qi cao Xiao-xia Li yu-qi Feng Xiong cao Peng Deng Shanxi Fire&Explosion-Proofing Safety Engineering and Technology Research Center North University of ChinaTaiyuan030051PR China State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081PR China

Improving the thermal decomposition performance of hexanitrohexaazaisowurtzitane(CL-20)by appropriate methods is helpful to promote the combustion performance of CL-20-based solid *** this study,we synthesized a sandwich structure of CL-20 and nanoporous carbon scaffolds film(NCS)and emphatically studied the thermal decomposition performance of the composite *** analysis and differential scanning calorimetry were used to measure the thermal decomposition process of the composite *** kinetic parameters of thermal decomposition were calculated by the thermal dynamic analysis software *** results showed that the thermal decomposition performance of the sandwich structure of CL-20 and NCS was better than *** the tested samples,NCS with a pore size of 15 nm had the best catalytic activity for the thermal decomposition of ***,the thermal decomposition curve of the composite structure at the heating rate of 1 K/min was deconvoluted by mathematical method to study the thermal decomposition *** a possible catalytic mechanism was *** excellent thermal decomposition performance is due to the sandwich structure enhances the interface reaction of CL-20 and *** work may promote the extensive use of CL-20 in the field of solid rocket propellant.

关键词： CL-20 NCS Catalysis Thermal decomposition Sandwich structure

A comparative analysis of differentially expressed genes in rostral and caudal regions after spinal cord injury in rats

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Neural Regeneration Research 2022年第10期17卷 2267-2271页

作者： Xue-Min cao Sheng-Long Li yu-qi cao Ye-Hua Lv Ya-Xian Wang Bin yu Chun Yao Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology ProductsCo-innovation Center of NeuroregenerationNantong UniversityNantongJiangsu ProvinceChina

The initial mechanical damage of a spinal cord injury(SCI)triggers a progressive secondary injury cascade,which is a complicated process integrating multiple systems and *** is crucial to explore the molecular and biological process alterations that occur after SCI for therapy *** differences between the rostral and caudal regions around an SCI lesion have received little ***,we analyzed the differentially expressed genes between rostral and caudal sites after injury to determine the biological processes in these two segments after *** identified a set of differentially expressed genes,including Col3a1,Col1a1,Dcn,Fn1,Kcnk3,and Nrg1,between rostral and caudal regions at different time points following *** enrichment analysis indicated that these genes were involved in response to mechanical stimulus,blood vessel development,and brain *** then chose Col3a1,Col1a1,Dcn,Fn1,Kcnk3,and Nrg1 for quantitative real-time PCR and Fn1 for immunostaining *** results indicate alterations in different biological events enriched in the rostral and caudal lesion areas,providing new insights into the pathology of SCI.

关键词： biological process caudal differentially expressed genes Gene Ontology hemisection immunostaining Rattus norvegicus RNA-sequencing rostral spinal cord injury

Vacuum promoted on-tissue derivatization strategy: Unravelling spatial distribution of glycerides on tissue

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Chinese Chemical Letters 2024年第12期35卷 503-509页

作者： yu-qi cao Ying-Jie Lu Li Zhang Jing Zhang Yin-Long Guo State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai Center for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences Technical Centre Shanghai Tobacco (Group) Corp. Department of Pharmacognosy School of PharmacyNaval Medical University

Matrix-assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI) has shown its capability in visualizing the spatial distribution of various kinds of endogenous ***,high quality mass imaging of low polar metabolites remains ***,a platform for sensitive matrix-assisted laser desorption ionization-mass spectrometry imaging of cholesterol and glycerides has been *** the platform,a vacuum promoted on-tissue derivatization strategy was proposed to constantly make the derivatization reaction proceed towards to the direction of *** with traditional on-tissue derivatization procedure,the strategy improved the acquired intensity of derivatized glycerides about 50%.Additionally,the mass spectrometry image reflecting the signal ratio between 3classes of glycerides was achieved to exploit the metabolic level of glycerides on tissue ***,the platform was applied to brain slices of Alzheimer’s transgenic mice,type 2 diabetes mice and normal *** difference was found in mass spectrometry images reflecting the signal ratio of multiple endogenous *** work constructed a promising platform for mapping of glycerides in tissue by mass spectrometry imaging.

关键词： Mass spectrometry imaging On-tissue Derivatization Glycerides Alzheimer's disease

Piezochromic luminescence and aggregation induced emission of 9,10-bis[2-(2-alkoxynaphthalen-1-yl)vinyl]anthracene derivatives

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Chinese Chemical Letters 2017年第7期28卷 1485-1491页

作者： Xin-yu Teng Xing-Chun Wu yu-qi cao yue-Hua Jin Yang Li Xi-Long Yan Bo-Wei Wang Li-Gong Chen School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Tianjin Bohai Fine Chemical Co. Ltd.Tianjin 300072China Tianjin Engineering Research Center of Functional Fine Chemicals Tianjin 300072China

Four derivatives of 9,10-bis[2-（2-alkoxynaphthalen-1-yl）vinyl]anthracene（BNAs） were designed,successfully synthesized and characterized by spectrofluorometer, powder wide-angle X-ray diffraction（PXRD） and differential scanning calorimetry experiments（DSC）, etc. It was found that these compounds exhibited aggregation-induced emission phenomenon. Moreover, these target compounds displayed reversible color change from yellow to orange upon pressing and annealing process. Interestingly, all of BNAs obviously presented red-shifted piezofluorochromic（PFC） properties and behaved mainly length dependence of alkoxy group, in which, BNA displayed the largest PFC spectral shift（DlPFC= 26 nm）. The PXRD profiles demonstrated the transformation from crystalline to amorphous state upon grinding, and the mechanism of PFC behaviors was proposed. Thus, changing the length of alkoxyl chain could be an alternative way to tune their PFC behaviors.

关键词： 9 10-Divinylanthracenes Piezofluorochromic Aggregation induced emission Alkoxyl-length dependent Stimuli-responsive material

Carbon self-doped polytriazine imide nanotubes with optimized electronic structure for enhanced photocatalytic activity

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2021年第9期22卷 751-759页

作者： Hui ZHANG Zhen YANG yu-qi cao Zhi-gang MOU Xin cao Jian-hua SUN School of Chemistry and Environmental Engineering Institute of Advanced Functional Materials for EnergyJiangsu University of TechnologyChangzhou 213001China

The triazine-based carbon nitride known as polytriazine imide(PTI)is a metal-free semiconductor photocatalyst but usually shows moderate activity due to its limited charge transfer ***,carbon self-doped PTI(C-PTI)was prepared via a facile and green method by using glucose as the carbon *** the condensation process,glucose can promote nanotube formation,giving the product larger surface ***,carbon self-doping induces an intrinsic change in the electronic structure,thus optimizing the band structure and the electronic transport ***,the as-synthesized C-PTI exhibits remarkably enhanced photocatalytic activities for both hydrogen evolution and tetracycline degradation reactions.

关键词： Polytriazine imide(PTI) Photocatalysis Hydrogen evolution Tetracycline degradation

Meningeal lymphatic vessel crosstalk with central nervous system immune cells in aging and neurodegenerative diseases

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Neural Regeneration Research 2025年第3期20卷 763-778页

作者： Minghuang Gao Xinyue Wang Shijie Su Weicheng Feng Yaona Lai Kongli Huang Dandan cao qi Wang Science and Technology Innovation Center Guangzhou University of Chinese MedicineGuangzhouGuangdong ProvinceChina Institute of Clinical Pharmacology Guangzhou University of Chinese MedicineGuangzhouGuangdong ProvinceChina The Sixth Affiliated Hospital Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Meningeal lymphatic vessels form a relationship between the nervous system and periphery, which is relevant in both health and disease. Meningeal lymphatic vessels not only play a key role in the drainage of brain metabolites but also contribute to antigen delivery and immune cell activation. The advent of novel genomic technologies has enabled rapid progress in the characterization of myeloid and lymphoid cells and their interactions with meningeal lymphatic vessels within the central nervous system. In this review, we provide an overview of the multifaceted roles of meningeal lymphatic vessels within the context of the central nervous system immune network, highlighting recent discoveries on the immunological niche provided by meningeal lymphatic vessels. Furthermore, we delve into the mechanisms of crosstalk between meningeal lymphatic vessels and immune cells in the central nervous system under both homeostatic conditions and neurodegenerative diseases, discussing how these interactions shape the pathological outcomes. Regulation of meningeal lymphatic vessel function and structure can influence lymphatic drainage, cerebrospinal fluid-borne immune modulators, and immune cell populations in aging and neurodegenerative disorders, thereby playing a key role in shaping meningeal and brain parenchyma immunity.

关键词： central nervous system meningeal lymphatic vessels immunity myeloid cells lymphatic cells neurodegenerative disease

Visible-light-responsive homologous heterostructure of oxynitrides constructed to boost charge separation and water splitting

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Science China Chemistry 2025年第01期 186-191页

作者： Hai Zou yunfeng Bao Xueshang Xin yu qi Tengfeng Xie Fuxiang Zhang State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences School of Chemistry and Chemical Engineering Liaoning Normal University College of Chemistry Jilin University

Constructing type II heterostructures represents a widely recognized strategy for enhancing charge separation and photocatalytic efficiency,but it remains challenging to fabricate homologous heterostructures based on visible-light-responsive semiconductors,especially for popularly investigated （oxy）nitrides with low thermal ***,we synthesized a homologous heterostructure （denoted as YTON＿H） based on the oxynitrides of YTaO4-xNyand YTa *** heterostructure exhibits type II band structure alignment and intimate interface achieved through a magnesium （Mg） powder-assisted nitridation *** with widely reported heterologous heterostructures,the as-obtained YTON＿H homologous heterostructure could similarly exhibit enhanced charge separation as well as photocatalytic water splitting performance with respect to its counterparts(YTaO4-xNyand YTaON2).Meanwhile,detailed structural characterizations and spectroscopy analysis have been made to confirm the formation of heterostructure and promotion of spatial charge separation.

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MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self-Powered Motion Sensing

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NANO-MICRO LETTERS 2025年第1期17卷 1-15页

作者： Wang, yu-Ze Wang, yu-Chang Liu, Ting-Ting Zhao, Quan-Liang Li, Chen-Sha cao, Mao-Sheng Beijing Inst Technol Sch Mat Sci & Engn Beijing 100081 Peoples R China Peking Univ Sch Mat Sci & Engn Beijing 100871 Peoples R China North China Univ Technol Sch Mech & Mat Engn Beijing 100144 Peoples R China Heilongjiang Univ Minist Educ Peoples Republ China Key Lab Funct Inorgan Mat Chem Harbin 150080 Peoples R China

Polymeric microwave actuators combining tissue-like softness with programmable microwave-responsive deformation hold great promise for mobile intelligent devices and bionic soft robots. However, their application is challenged by restricted electromagnetic sensitivity and intricate sensing coupling. In this study, a sensitized polymeric microwave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3C2Tx (MXene). Compared to the initial counterpart, the hybrid polymer exhibits unique space-charge polarization and interfacial polarization, resulting in significant improvements of 230% in the dielectric loss factor and 830% in the apparent efficiency of electromagnetic energy harvest. The sensitized microwave actuation demonstrates as the shortened response time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (up to 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combines driving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of similar to 3 mV) during actuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approach for developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

基于改进遗传算法的无向加权图的k点连通扩充

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天津大学学报（自然科学与工程技术版） 2003年第5期36卷 595-599页

作者：孙立华孙雨耕曹其国杨挺天津大学电气与自动化工程学院天津300072

加权图的连通扩充问题已被证明是NP完全问题.作者提出一种改进遗传算法来解决无向加权图的k点连通扩充问题,通过改进遗传算法中的交叉和变异操作有效地改善了群体的效果,有助于搜索解空间中新的区域,能以较大概率搜索到全局最优.仿真结... 详细信息

加权图的连通扩充问题已被证明是NP完全问题.作者提出一种改进遗传算法来解决无向加权图的k点连通扩充问题,通过改进遗传算法中的交叉和变异操作有效地改善了群体的效果,有助于搜索解空间中新的区域,能以较大概率搜索到全局最优.仿真结果表明,该算法在原来简单遗传算法上做了进一步改善,为解决加权图的扩充问题提供了新的方法.

关键词：无向加权图 k点连通扩充改进遗传算法 NP完全问题图论网络拓扑结构连通度

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直肠术后低位前切除综合征高危因素分析

中华医学杂志 2018年第12期98卷 917-920页

作者：吴国举贾文焯安琦余涛曹祥龙肖刚北京医院胃肠外科 100730

目的直肠低位前切除术在保留肛门括约肌的同时可能造成术后一系列肠道功能障碍，即低位前切除综合征（LARS）。本研究旨在分析确定直肠低位前切除术后肠功能障碍的发生率和危险因素。方法回顾性分析了2010年1月至2015年12月在北京医院... 详细信息

目的直肠低位前切除术在保留肛门括约肌的同时可能造成术后一系列肠道功能障碍，即低位前切除综合征（LARS）。本研究旨在分析确定直肠低位前切除术后肠功能障碍的发生率和危险因素。方法回顾性分析了2010年1月至2015年12月在北京医院胃肠外科收治的直肠癌患者临床病理资料。在随访过程中采用LARS问卷对研究对象的排便功能进行评估。比较严重LARS和轻度／无LARS组的临床因素之间的差异。结果共有254例完成量表评分并最终纳入本研究。112例患者（44．1％）出现了严重的LARS症状。新辅助放化疗（OR=2．814，95％CI：1．097～5．561，P〈0．001），低位肿瘤（OR=3．568，95％CI：1．159—6．546，P〈0．001）以及吻合口漏（OR=6．574，95％CI：1．689～15．367，P〈0．001）是LARS的独立危险因素。结论直肠低位前切除术后的排便功能障碍具有较高的发生率和严重程度。对于具有LARS危险因素的患者，外科医生应充分告知风险，选择合理的病例进行保肛手术，避免严重LARS对患者生活质量造成的损害。

关键词：低位前切除综合征排便功能障碍直肠肿瘤