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Spatial structure regulation towards armor-clad five-membered pyrroline nitroxides catholyte for long-life aqueous organic redox flow batteries

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eScience 2024年第1期4卷 143-151页

作者： Hao Fan Kai Liu Xudong Zhang yunpeng Di Pan Liu Jiaqi Li Bo Hu Hongbin Li Mahalingam Ravivarma Jiangxuan Song State Key Laboratory for Mechanical Behavior of Materials Shaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong UniversityXi'an 710049China Network Information Center Xi'an Jiaotong UniversityXi'an 710049China

Five-membered pyrroline nitroxides with high-potential is fascinating as catholyte for aqueous organic redox flow batteries(AORFBs),however,it suffers from a primary deficiency of insufficient stability due to ring-opening side *** we report a spatial structure regulation strategy by host-guest chemistry,encapsulating 3.carbamoyl-2,2,5,5-tetramethylpyrroline-1-oxyl(CPL)into hydrosoluble cyclodextrins(CDs)with an inclusion structure of N–O⋅head towards cavity bottom,to boost the solubility and cyclability of pyrroline nitroxides *** armor-clad CPL(CPL⊂HP-β-CD)catholyte in 0.05–0.5 M presents a battery capacity fade rate as low as 0.002%/cycle(0.23.%/day)compared to the sole CPL in 0.05 M(0.03.%/cycle or 5.23./day)over 500 cycles in assembled *** optimized reclining spatial structure with N–O⋅head towards CD cavity bottom effectively inhibits the attack of Lewis base species on the hydrogen abstraction site in pyrroline ring,and thus avoids the ring-opening side reaction of pyrroline nitroxides.

关键词： Aqueous organic redox flow batteries Stabilization mechanism Spatial structure Five-membered pyrroline nitroxides Cyclodextrins

电影影像的可塑性:基于电影史与现象学的超验存在论

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电影评介 2024年第1期 34-39页

作者：张芸鹏山西师范大学戏剧与影视学院

通常意义上,电影影像是固定和必然性的:它意味着其是经由摄影机记录、剪辑与后期处理,最后呈现在观众面前的经验之物。拍摄者可能会从不同角度出发对同一内容进行反复扮演和拍摄,但最后被甄选出来的总是符合其心理预期的结果。从电影发... 详细信息

通常意义上,电影影像是固定和必然性的:它意味着其是经由摄影机记录、剪辑与后期处理,最后呈现在观众面前的经验之物。拍摄者可能会从不同角度出发对同一内容进行反复扮演和拍摄,但最后被甄选出来的总是符合其心理预期的结果。从电影发明历史出发,电影本身作为一种基于特定技术原理,并从根本上由人类想象力驱动的艺术,“想象”本身的发散性始终铭刻在电影的媒介现实中,深刻地影响着其中的视听展现内容。

关键词：电影史心理预期电影影像拍摄者后期处理发散性媒介现实摄影机

Study on the influence of side-blown airflow velocities on plasma and combustion wave generated from fused silica induced by combined pulse laser

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Plasma Science and Technology 2024年第7期26卷 165-176页

作者：余昊蔡继兴毛洪涛王云鹏李忆李顺 Jilin Key Laboratory of Solid-State Laser Technology and Application School of PhysicsChangchun University of Science and TechnologyChangchun 130022People’s Republic of China Chongqing Research Institute Changchun University of Science and TechnologyChongqing 401135People’s Republic of China

This study examines the impact of variations in side-blowing airflow velocity on plasma generation,combustion wave propagation mechanisms,and surface damage in fused silica induced by a combined millisecond-nanosecond pulsed *** airflow rate and pulse delay are the main experimental *** evolution of plasma motion was recorded using ultrafast time-resolved optical *** experimental results demonstrate that the expansion velocities of the plasma and combustion wave are influenced differently by the sideblowing airflow at different airflow rates(0.2 Ma,0.4 Ma,and 0.6 Ma).As the flow rate of the sideblow air stream increases,the initial expansion velocities of the plasma and combustion wave gradually decrease,and the side-blow air stream increasingly suppresses the *** is important to note that the target vapor is always formed and ionized into plasma during the combined pulse laser ***,the side-blown airflow alone cannot completely clear the *** on the delay conditions,the pressure of the side-blowing airflow,the influence of inverse Bremsstrahlung radiation absorption and target surface absorption mechanisms can lead to a phenomenon known as the double combustion waves when using a nanosecond pulse *** simulation and experimental results are consistent,indicating the potential for further exploration of fused silica targets in the laser field.

关键词： different airflow speeds plasma combustion wave different pulse delay surface damage

Appraising the causal effects of circulating micronutrients on liver cirrhosis:Evidence from large-scale Mendelian randomization analysis

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Portal Hypertension & Cirrhosis 2024年第3期3卷 160-170页

作者： Junlong Lin Jialin Chen Zhichao Li Baifeng Qian yunpeng Hua Department of Liver Surgery The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdongChina

Aims:Observational research has identified links between micronutrient levels and chronic liver ***,the lack of randomized controlled experiments has impeded the ability to establish a cause-and-effect connection regarding micronutrients and cirrhosis of the *** Mendelian randomization(MR)analysis aimed to examine the causal impact of micronutrients on liver ***:We selected genetic instrumental variables related to 12 micronutrients from genome-wide studies on individuals of European descent,covering an array of over 9,851,867 single nucleotide polymorphisms and 460,3.1 *** from patients with cirrhosis in the FinnGen database(https://***/fi)were used.A two-sample MR approach was employed to establish genetically causal *** analyses used random effects and inverse variance weighted(IVW)methods,with additional sensitivity analyses for ***–Egger intercept analysis and Cochran's Q test assessed horizontal pleiotropy and ***,multivariable Mendelian randomization(MVMR)was conducted to address potential confounding ***:IVW and weighted median methods showed that most micronutrients included were not significantly associated with a genetic susceptibility to liver ***,MR analysis demonstrated a significant association between circulating vitamin D levels and a reduced risk of liver cirrhosis(odds ratio IVW=0.53.p<0.010).TheMR–Egger intercept showed no evidence of horizontal pleiotropy(p=0.178),whereas Cochran's Q test found no heterogeneity(p=0.799).Furthermore,MVMR analysis confirmed vitamin D was identified as a factor that independently mitigates the risk of liver ***:This research constitutes the most comprehensive MR investigation in this field,providing evidence supporting a protective link between circulating vitamin D levels and cirrhosis *** suggests that maintaining sufficient vitamin D could be a cost-effecti

关键词： liver cirrhosis Mendelian randomization micronutrient vitamin D

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企业社会责任履行与超额商誉抑制

武汉大学学报（哲学社会科学版） 2024年第2期77卷 132-144页

作者：范云朋中国社会科学院金融研究所北京100710

在坚决打好防范化解金融风险攻坚战的大背景下,企业社会责任履行对于推动资本市场平稳运行和企业高质量发展具有重要战略意义。近年来上市公司超额商誉带来的巨大商誉泡沫已成为隐藏在资本市场中的重要金融风险因素,给我国资本市场稳定... 详细信息

在坚决打好防范化解金融风险攻坚战的大背景下,企业社会责任履行对于推动资本市场平稳运行和企业高质量发展具有重要战略意义。近年来上市公司超额商誉带来的巨大商誉泡沫已成为隐藏在资本市场中的重要金融风险因素,给我国资本市场稳定和企业健康发展带来一定的负面影响。企业履行社会责任作为一种自我规制的治理策略和长期价值追求,通过提高信息透明度和企业声誉,抑制了企业超额商誉,且股东责任履行对超额商誉的抑制作用最为显著。企业社会责任履行对于超额商誉的抑制作用主要体现在非国有控股、管理层过度自信、审计师来自非四大事务所和被并购方处于业绩承诺期的企业中。此外,企业社会责任履行可以通过抑制超额商誉来降低企业股价崩盘风险。当前应着力优化监管和治理水平,推动上市公司积极履行企业社会责任,充分释放企业提升社会责任履行水平的正向经济效应。

关键词：企业社会责任超额商誉股价崩盘风险

Uniformity Control of Scanned Beam in 3.0 MeV Proton and Heavy Ion Accelerator Complex at SESRI

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原子能科学技术 2024年第4期58卷 705-713页

作者： HOU Lingxiao YUAN Youjin SHEN Guodong RUAN Shuang LIU Jie ZHU yunpeng WANG Geng GUO Hongliang LYU Mingbang GAO Daqing XU Zhiguo SHENG Lina YANG Jiancheng Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China

In recent years,heavy ion accelerator technology has been rapidly developing worldwide and widely applied in the fields of space radiation simulation and particle ***,a very high uniformity in the irradiation area is required for the extracted ion beams,which is crucial because it directly affects the experimental precision and therapeutic ***,ultra-large-area and high-uniformity scanning are crucial requirements for spacecraft radiation effects assessment and serve as core specification for beamline terminal *** the 3.0 MeV proton and heavy ion accelerator complex at the Space Environment Simulation and Research Infrastructure(SESRI),proton and heavy ion beams will be accelerated and ultimately delivered to three irradiation *** order to achieve the required large irradiation area of 3.0 mm×3.0 mm,horizontal and vertical scanning magnets are used in the extraction beam ***,considering the various requirements for beam species and energies,the tracking accuracy of power supplies(PSs),the eddy current effect of scanning magnets,and the fluctuation of ion bunch structure will reduce the irradiation *** mitigate these effects,a beam uniformity optimization method based on the measured beam distribution was proposed and applied in the accelerator complex at *** the experiment,the uniformity is successfully optimized from 75%to over 90%after five iterations of adjustment to the PS *** this paper,the method and experimental results were introduced.

关键词： heavy ion accelerator beam uniformity scanning magnet MIC

Chemical composition and pharmacological activities of Atractylodes lancea:A review

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Asian Journal of Traditional Medicines 2024年第3期19卷 159-171页

作者： Shuo Wanga yunpeng Yang Yibo Wang Wenhan Wang Meng Zhang Yu Chen School of Life Science and Biopharmaceutics Shenyang Pharmaceutical UniversityShenyang 110016China Jiangxi Alpha Hi-Tech Pharmaceutical Co. LtdWuxi 214422China

Atractylodes lancea(called Cangzhu in China)is a medicinal plant that has long been used as tonic agent in various ethno-medical systems in East Asia,especially in China,for the treatment of gastrointestinal dysfunction,cancer,osteoporosis,obesity and fetal *** used the TCMSP database to search for the main active ingredients and traditional Chinese medicine targets of Atractylodes *** are a total of 3. related articles,of which 27 are closely related to chemical composition and *** study reviews the chemical components and pharmacological effects of ***,aiming to provide reference for its further research and development.

关键词： Atractylodes lancea chemical composition pharmacological activities

Chemical constituents and pharmacological effects of Lonicerae japonicae

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Asian Journal of Traditional Medicines 2024年第1期19卷 34-45页

作者： yunpeng Yang Dan Tian Yibo Wang Yi’an Shi Yuntian Xing Yu Chen School of Life Science and Biopharmaceutics Shenyang Pharmaceutical UniversityShenyang 110016China Shenyang Hoper Group Co. LtdShenyang 110122China National Health Commission Key Laboratory of Parasitic Disease Control and Prevention Jiangsu Provincial Key Laboratory on Parasite and Vector Control TechnologyJiangsu Provincial Medical Key LaboratoryJiangsu Institute of Parasitic DiseasesWuxi 214064China

Lonicera japonica,also known as honeysuckle,is an evergreen shrub in the family of *** consulting Sciencedirect databases and Web of Science databases,79 related articles were found,of which 22 were related to chemical composition and pharmacological *** articles show that *** has a wide range of pharmacological activities,including antiviral,anti-tumor,and antioxidant *** activities have important applications in the pharmaceutical,food,and fragrance *** review focuses on the chemical composition and pharmacological effects of ***,which is of great significance to the development of new drugs and therapeutic methods.

关键词： Lonicerae japonicae chemical composition pharmacological activity

复方碘口腔喷雾原位膜的制备及促口腔溃疡修复评价

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中国药科大学学报 2024年

作者：张小军黄山芩郭潇涵季梦菲沈雁陈大全许颖 1.江苏大学药学院 2.中国药科大学药学院 3.烟台大学药学院江苏大学药学院中国药科大学药学院烟台大学药学院

采用原位凝胶技术，制备了新型复方碘口腔喷雾原位膜，用于发挥缓释作用，并促进口腔溃疡创面修复。首先以喷雾状态和成膜时间为指标，对喷雾药液的处方和工艺进行优化。以成膜时间和药膜黏附性为评价指标对药液混合比例进行考察。并对... 详细信息

采用原位凝胶技术，制备了新型复方碘口腔喷雾原位膜，用于发挥缓释作用，并促进口腔溃疡创面修复。首先以喷雾状态和成膜时间为指标，对喷雾药液的处方和工艺进行优化。以成膜时间和药膜黏附性为评价指标对药液混合比例进行考察。并对最优处方制备的复方碘口腔喷雾药液的药物含量、稳定性、pH、喷雾效果，及原位膜的成膜时间、溶解性、吸湿性、保湿性、体外释放等理化性质进行考察；此外，通过细胞实验考察了成膜材料的生物相容性及复方碘口腔喷雾原位膜的促迁移效果；采用兔口腔溃疡模型，对复方碘口腔喷雾在体成膜效果及促修复效果进行评价。实验结果显示，最优处方制备的药液A和药液B的pH分别为6.21 ± 0.02和 6.42 ± 0.03.符合正常口腔黏膜pH范围；稳定性好，具有良好的喷雾状态；药液B中碘含量为（1.96 ± 0.01）mg/mL；原位膜体外成膜时间为（118.3.± 3.6）s，口腔内成膜时间为（13..3.± 4.6）s；24 h溶解率为（87.3. ± 1.74）%，吸湿率为（124.17 ± 7.13.%，保湿率为（26.85 ± 2.50）%；复方碘口腔喷雾原位膜中碘含量为（47.42 ± 0.3.）mg/g；具有良好的柔韧性和黏附性，并具有一定的缓释效果。细胞实验中，原位膜表现出良好的促成纤维细胞迁移作用。兔口腔溃疡实验表明，复方碘口腔喷雾在体可快速成膜，并可显著促进口腔溃疡修复。本研究所开发的复方碘口腔喷雾原位膜，制备工艺稳定，并可有效促进口腔溃疡创面修复，为口腔黏膜制剂的研究和开发提供了新思路，并具有良好的转化前景。

关键词：口腔喷雾原位膜复方碘口腔溃疡缓释促修复