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消防服衣下空气层结构对人体热防护的影响规律

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纺织学报 2025年第1期46卷 148-153页

作者：韩烨田苗东华大学服装与艺术设计学院上海200051 东华大学功能防护服装研究中心上海200051 东华大学现代服装设计与技术教育部重点实验室上海200051

为降低火灾环境对消防员皮肤烧伤的危害,构建空气层三维传热模拟装置,模拟服装开口处的衣下空气层状态,并开展低热辐射条件下的热暴露试验,探究着装人体与外界环境的热量交换及对人体皮肤热防护的影响规律。结果表明:与封闭空气层相比,... 详细信息

为降低火灾环境对消防员皮肤烧伤的危害,构建空气层三维传热模拟装置,模拟服装开口处的衣下空气层状态,并开展低热辐射条件下的热暴露试验,探究着装人体与外界环境的热量交换及对人体皮肤热防护的影响规律。结果表明:与封闭空气层相比,开放空气层条件下织物受热面的峰值温度更低;空气层厚度的增加和边界的开放能够提升织物系统的热防护能力;3 mm空气层条件下,封闭状态的热防护性能更好,而其它厚度下开放空气层的防护能力更好;与无空气层条件相比,3~18 mm的封闭空气层可将热流密度衰减提升16.2%~44.5%、皮肤温度降低9%~26.7%、二级烧伤时间延长10.0%~100.8%;开放空气层可将热流密度衰减提升8.0%~50.7%、皮肤温度降低4.7%~30.0%、二级烧伤时间延长7.2%~140.9%。

关键词：消防服职业安全空气层热防护二级烧伤时间

Electronic interactions between neighboring functionalized guest Sb single atoms and Pt clusters enhance CO tolerance

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Journal of Energy Chemistry 2025年第2期101卷 733-743页

作者： Wenkang miao Ronghui Hao Lu Gan Wanyin Xu Zihan Wang Wenxin Lin Heguang Liu Yinchun Lyu Qianqian Li Jinyang Xi Anmin Nie Jinsong Wu Hongtao Wang Materials Genome Institute Shanghai University School of Materials Science and Engineering Zhejiang Sci-Tech University School of Materials Science and Engineering Xi'an University of Technology Center for High Pressure Science State Key Laboratory of Metastable Materials Science and Technology Yanshan University Nanostructure Research Center Wuhan University of Technology Center for X-mechanics Zhejiang University

Platinum-based（Pt） catalysts are notoriously susceptible to deactivation in industrial chemical processes due to carbon monoxide（CO） *** this poisoning deactivation of Pt-based catalysts while enhancing their catalytic activity,selectivity,and durability remains a major ***,we propose a strategy to enhance the CO tolerance of Pt clusters（Pt_n） by introducing neighboring functionalized guest single atoms（such as Fe,Co,Ni,Cu,Sb,and Bi）.Among them,antimony（Sb） single atoms（SAs） exhibit significant performance enhancement,achieving 99% CO selectivity and 33.6% CO2conversion at 450℃,Experimental results and density functional theory（DFT） calculations indicate the optimization arises from the electronic interaction between neighboring functionalized Sb SAs and Pt clusters,leading to optimal 5d electron redistribution in Pt clusters compared to other functionalized guest single *** redistribution of 5d electrons weaken both the σ donation and π backdonation interactions,resulting in a weakened bond strength with CO and enhancing catalyst activity and *** situ environmental transmission electron microscopy（ETEM） further demonstrates the exception thermal stability of the catalyst,even under H2at 700℃.Notably,the functionalized Sb SAs also improve CO tolerance in various heterogenous catalysts,including Co/CeO2,Ni/CeO2,Pt/Al2O3,and Pt/*** finding provides an effective approach to overcome the primary challenge of CO poisoning in Pt-based catalysts,making their broader applications in various industrial catalysts.

关键词： CO tolerance Electronic effect Functionalized guest single atoms In-situ TEM Pt cluster

Fine mapping and identification of CaTTG1,a candidate gene that regulates the hypocotyl anthocyanin accumulation in Capsicum annuum

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Horticultural Plant Journal 2025年第1期11卷 264-274页

作者： Jin Wang Yao Dai Luzhao Pan Ying Chen Li Dai Yanqing Ma Xiaoxun Zhou Wu miao Muhammad Rizwan Hamid Xuexiao Zou Feng Liu Cheng Xiong Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops Key Laboratory for Vegetable Biology of Hunan ProvinceCollege of HorticultureHunan Agricultural UniversityChangshaHunan 410000China Hunan Xiangyan Seed Industry Co. LTDChangshaHunan 410000China

Pepper(Capsicum annuum L.)is a typical self-pollinating crop with obvious heterosis in ***,the use of morphological markers during the pepper seedling stage is crucial for pepper *** color of hypocotyl is widely used as a phenotypic marker in crossing studies of *** accessions generally have purple hypocotyls,which are mainly due to the anthocyanin accumulation in seedlings,and green hypocotyls are rarely observed in *** we reported the characterization of a green hypocotyl mutant of pepper,Cha1,which was identified from a pepper ethyl methanesulfonate(EMS)mutant *** mapping revealed that the causal gene,CaTTG1,belonging to the WD40 repeat family,controlled the green hypocotyl phenotype of the ***-induced gene silencing(VIGS)confirmed that CaTTG1 regulated anthocyanin ***-seq data showed that expression of structural genes CaDFR,CaANS,and CaUF3GT in the anthocyanin biosynthetic pathway was significantly decreased in Cha1 compared to the wild *** two-hybrid(Y2H)experiments also confirmed that CaTTG1 activated the synthesis of anthocyanin structural genes by forming a MBW complex with CaAN1 and *** summary,this study provided a green hypocotyl mutant of pepper,and the Kompetitive Allele Specific PCR(KASP)marker developed based on the mutation site of the underlying gene would be helpful for pepper breeding.

关键词： Pepper CaTTG1 Anthocyanin Hypocotyl color Fine-mapping

Reversible phase transition poly(benzyl methacrylate)/ionic liquid electrolytes for effective overheating protection in lithium batteries

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Journal of Energy Chemistry 2025年第2期101卷 76-86页

作者： Qian Yu Wei Sun Jialing Zhu Haoxiang Li Shuai Wang Longqing Huang Qian Qiu Haoran Tian He miao Fu Wang Chunfei Zhang Jinliang Yuan Lan Xia Ningbo Innovation Team on New Energies and Marine Applications Faculty of Maritime and Transportation Ningbo University Technical University of Munich TUM School of Natural Sciences Department of Physics Chair for Functional Materials

Battery safety is influenced by various factors,with thermal runaway being one of the most significant *** most studies have concentrated on developing one-time,self-activating mechanism for thermal protection,such as temperature-responsive electrodes,and thermal-shutdown separators,these methods only provide irreversible ***,reversible temperature-sensitive electrolytes have emerged as promising alternatives,offering both thermo-reversibility and self-protective ***,further research is crucial to fully understand these thermal-shutdown *** this study,we propose lower critical solution temperature(LCST) phase behavior poly(benzyl methacrylate)/imidazolium-based ionic liquid mixtures to prepare temperature-sensitive electrolytes that provide reversible thermal shutdown protection of *** electrolyte features an appropriate protection temperature(～105℃) and responds quickly within a 1 min at 105℃,causing cells to hardly discharge as the voltage suddenly drops to 3.38 V,and providing efficient thermal shutdown protection within 30 *** cooling back to room temperature,the battery regains its original ***,the electrolyte exhibits excellent cycling stability with the capacity retention of the battery is 91.6% after 500 *** work provides a viable solution for preventing batteries from thermal runaway triggered by overheating.

关键词： Ionic liquid Lithium-ion battery Lower critical solution temperature Overheating Safety Thermal runaway

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上海市大学生体质发展现状

上海师范大学学报（自然科学版） 1997年第3期26卷 81-84页

作者：缪伟良蔡皓凌明德上海师范大学体育系上海200234

用数理统计法、比较研究法对本市城乡大学生的8项体质指标进行了动态分析和研究，得出近5年来，上海市大学生体质状况有所提高的结论．

关键词：大学生体质体锻标准身体素质

Gamma-glutamyl transferase 5 overexpression in cerebrovascular endothelial cells improves brain pathology,cognition,and behavior in APP/PS1 mice

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Neural Regeneration Research 2025年第2期20卷 533-547页

作者： Yanli Zhang Tian Li Jie miao Zhina Zhang Mingxuan Yang Zhuoran Wang Bo Yang Jiawei Zhang Haiting Li Qiang Su Junhong Guo Department of Neurology First Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Neurology Sixth Hospital of Shanxi Medical University(General Hospital of Tisco)TaiyuanShanxi ProvinceChina Department of Physiology Key Laboratory of Cellular PhysiologyMinistry of EducationShanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Hernia and Abdominal Wall Surgery Shanxi Bethune HospitalShanxi Academy of Medical SciencesTongji Shanxi HospitalThird Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Laboratory Medicine of Fenyang College Shanxi Medical UniversityFenyangShanxi ProvinceChina

In patients with Alzheimer’s disease,gamma-glutamyl transferase 5(GGT5)expression has been observed to be downregulated in cerebrovascular endothelial ***,the functional role of GGT5 in the development of Alzheimer’s disease remains *** study aimed to explore the effect of GGT5 on cognitive function and brain pathology in an APP/PS1 mouse model of Alzheimer’s disease,as well as the underlying *** observed a significant reduction in GGT5 expression in two in vitro models of Alzheimer’s disease(Aβ_(1-42)-treated hCMEC/D3 and bEnd.3 cells),as well as in the APP/PS1 mouse ***,injection of APP/PS1 mice with an adeno-associated virus encoding GGT5 enhanced hippocampal synaptic plasticity and mitigated cognitive ***,increasing GGT5 expression in cerebrovascular endothelial cells reduced levels of both soluble and insoluble amyloid-βin the brains of APP/PS1 *** effect may be attributable to inhibition of the expression ofβ-site APP cleaving enzyme 1,which is mediated by nuclear factor-kappa *** findings demonstrate that GGT5 expression in cerebrovascular endothelial cells is inversely associated with Alzheimer’s disease pathogenesis,and that GGT5 upregulation mitigates cognitive deficits in APP/PS1 *** findings suggest that GGT5 expression in cerebrovascular endothelial cells is a potential therapeutic target and biomarker for Alzheimer’s disease.

关键词： Alzheimer’s disease amyloid-β APP/PS1 mice cerebrovascular endothelial cells cognitive deficits gamma-glutamyl transferase 5 neurovascular unit nuclear factor‐kappa B synaptic plasticity β-site APP cleaving enzyme 1

High-dose dexamethasone regulates microglial polarization via the GR/JAK1/STAT3 signaling pathway after traumatic brain injury

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Neural Regeneration Research 2025年第9期20卷 2611-2623页

作者： Mengshi Yang miao Bai Yuan Zhuang Shenghua Lu Qianqian Ge Hao Li Yu Deng Hongbin Wu Xiaojian Xu Fei Niu Xinlong Dong Bin Zhang Baiyun Liu Beijing Tiantan Hospital Capital Medical UniversityBeijingChina Department of Neurology The First Hospital of Tsinghua UniversityBeijingChina Department of Neurotrauma and Beijing Key Laboratory of Central Nervous System Injury Beijing Neurosurgical InstituteCapital Medical UniversityBeijingChina Department of Critical Care Medicine Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Center for Nerve Injury and Repair Beijing Institute of Brain DisordersChina National Clinical Research Center for Neurological DiseasesBeijingChina

Although microglial polarization and neuroinflammation are crucial cellular responses after traumatic brain injury,the fundamental regulatory and functional mechanisms remain insufficiently *** potent anti-inflammato ry agents,the use of glucoco rticoids in traumatic brain injury is still controversial,and their regulatory effects on microglial polarization are not yet *** the present study,we sought to determine whether exacerbation of traumatic brain injury caused by high-dose dexamethasone is related to its regulatory effects on microglial polarization and its mechanisms of *** vitro cultured BV2 cells and primary microglia and a controlled cortical impact mouse model were used to investigate the effects of dexamethasone on microglial ***,dexamethasone,RU486(a glucocorticoid receptor antagonist),and ruxolitinib(a Janus kinase 1 antagonist)were ***-sequencing data obtained from a C57BL/6 mouse model of traumatic brain injury were used to identify potential targets of *** Morris water maze,quantitative reverse transcription-polymerase chain reaction,western blotting,immunofluorescence and confocal microscopy analysis,and TUNEL,Nissl,and Golgi staining were performed to investigate our ***-throughput sequencing results showed that arginase 1,a marker of M2 microglia,was significantly downregulated in the dexamethasone group compared with the traumatic brain injury group at3 days post-traumatic brain *** dexamethasone inhibited M1 and M2 microglia,with a more pronounced inhibitory effect on M2microglia in vitro and in *** receptor plays an indispensable role in microglial polarization after dexamethasone treatment following traumatic brain ***,glucocorticoid receptor activation increased the number of apoptotic cells and neuronal death,and also decreased the density of dendritic spines.A possible downstream receptor signaling mechanism is th

关键词： apoptosis BV2 microglia dexamethasone glucocorticoid receptor glucocorticoids innate immune system microglial polarization neuroinflammation primary microglia traumatic brain injury

薄伽丘的经典性再辩:《十日谈》在20世纪中国文艺现场中的转译、腾挪与模塑

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美术研究 2025年第1期 130-136页

作者：白淼辽宁大学文学院 110000

意大利文艺复兴先驱薄伽丘及其巨著《十日谈》在七个世纪的文化流转中积淀了蔚为大观的图文遗产,成就了不朽的“人学”经典。本文将《十日谈》这部西学译著及其美术衍生品置于20世纪中国思想解放的历史进程中予以观照,爬梳其经典内核幽... 详细信息

意大利文艺复兴先驱薄伽丘及其巨著《十日谈》在七个世纪的文化流转中积淀了蔚为大观的图文遗产,成就了不朽的“人学”经典。本文将《十日谈》这部西学译著及其美术衍生品置于20世纪中国思想解放的历史进程中予以观照,爬梳其经典内核幽默性、批判性与世俗性——在我国社会转型期文艺现场中的转译、腾挪与模塑,揭示《十日谈》图文遗产在我国“再经典化”的视读历程。

关键词：《十日谈》经典性图像学

后经典视域下电影叙事-交流的核心概念与情境框架

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当代电影 2025年第2期 32-39页

作者：苗瑞大理大学文学院

在后经典叙事学的视域下,电影叙事实质上是一种修辞行为,具体表现为从电影创作集体到观众具有多重目的的交流。既有的电影叙事-交流研究借鉴文学叙事修辞的理论成果,但存在电影本体意识不强、对电影叙事-交流的特殊性分辨与梳理不清、... 详细信息

在后经典叙事学的视域下,电影叙事实质上是一种修辞行为,具体表现为从电影创作集体到观众具有多重目的的交流。既有的电影叙事-交流研究借鉴文学叙事修辞的理论成果,但存在电影本体意识不强、对电影叙事-交流的特殊性分辨与梳理不清、研究偏向发出端等问题。电影的叙事动力是以情节发展和隐性进程、视听觉吸引力、叙事判断为要素的多重动力系统。电影的叙事-交流情境则是以电影创作集体、大影像师、叙述者、叙事文本、受述者、隐含观众、真实观众为主要要素,以情节发展、叙事判断、隐性进程等为叙事动力建构起来的相互影响、相互作用的有机整体。

关键词：叙事-交流叙事修辞叙事动力情境框架