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Modulating nanograin size and oxygen vacancy of porous ZnO nanosheets by highly concentrated Fe-doping effect for durable visible photocatalytic disinfection

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Rare Metals 2024年第11期 5905-5920页

作者： Hong-Yao Zhao Shuo Wang Hong-Yang Zhu Xiao-Xu Zhang dan-Hong Shang Xin-Wei Zhou Jun Wang Cheng-Zhang Zhu feng Du Yi-Yan Song Fu Yang School of Environmental and Chemical Engineering Jiangsu University of Science and Technology Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine Shanghai JiaoTong University Affiliated Sixth People's Hospital School of Biological and Food Engineering Anhui Polytechnic University School of Environmental Science and Engineering Nanjing Tech University School of Materials Science and Engineering Suzhou University of Science and Technology Department of Clinical Laboratory The Fifth People's Hospital of SuzhouThe Affiliated Infectious Diseases Hospital of Soochow University

Visible light-driven environmentally friendly ZnO semiconductor for durable photocatalytic disinfection and purification of drinking water is very ***,the high requirement in ultraviolet absorption and rapid recombination velocity of the photogenerated electron-hole severely hamper the sustainable implementation of ZnO in ***,by one "two birds with one stone" strategy,Fe-doping ZnO porous nanosheets(Fe-ZnOPN) composed of ultrafine nanoparticles can be constructed by hydrothermal synthesis of basic zinc carbonate and controlled low-temperature pyrolytic *** highly concentrated Fe-doping effect(> 7 wt%),the tailoring ZnO nanograin size(～10 nm) and rich oxygen vacancy of catalyst were accessed by ion/vacancy diffusion and nanocrystal rearrangement,superior to the ZnO porous nanosheets(～37 nm).The obtained Fe-ZnOPN were endowed with a larger specific surface area,improved visible light harvesting ability,light response and separation of charge *** characters allowed the resulting catalyst to afford a 100% bactericidal efficiency against Pseudomonas aeruginosa and Staphylococcus aureus under visible light irradiation(> 420 nm).Impressively,the Fe-ZnOPN could show practical disinfection ability in different water resources and multiple reuse *** mechanism study revealed that excellent photocatalytic disinfection performance of Fe-ZnOPN correlated with the in situ generated active oxidative substances,destruction of bacterial biofilm and resulting nucleic acids leakage,thereby causing irreversible physical *** study provided a new reference for designing environmentally friendly photocatalytic sterilization materials and disinfectants,which can be used in the practical disinfection of drinking water.

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Sp/sp2 carbon ratio-driven high-throughput screening of electrocatalytic nitrogen reduction performance on transition metal single-atom catalysts

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Rare Metals 2024年第11期 5781-5791页

作者： Ze-Xiang Yin Yu-dan Li Yu-Huan Ye Yuan Liu Mian-feng Li Zi-Jun Yang Xue-Rong Zheng Hao-Zhi Wang Yang Wang Yi-Da Deng State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan University School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional MaterialsKey Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education)Tianjin University

Single-atom catalysts（SACs） have been widely utilized in electrochemical nitrogen reduction reactions（NRR） due to their high atomic utilization and *** to the unique sp/sp2co-hybridization,graphyne materials can offer stable adsorption sites for single metal *** investigate the influence of the sp/sp2hybrid carbon ratio on the electrocatalytic NRR performance of graphyne,a high-throughput screening of 81 catalysts,with27 transition metals loaded on graphyne（GY1）,graphdiyne（GY2）,and graphtriyne（GY3）,was conducted using firstprinciples *** results of the screening revealed that Ti@GY3 exhibits the lowest energy barrier for the rate-determining step（0.32 eV） in ***,to explore the impact of different sp/sp2-hybridized carbon ratios on the catalytic activity of SACs,the mechanism of nitrogen（N2） adsorption,activation,and the comprehensive pathway of NRR on Ti@GY1,Ti@GY2,and Ti@GY3 was systematically *** was found that the ratio of sp/sp2-hybridized carbon can significantly modulate the d-band center of the metal,thus affecting the energy barrier of the rate-determining step in NRR,decreasing from Ti@GY1（0.59 eV） to Ti@GY2（0.49 eV）;and further to Ti@GY3（0.32 eV）.Additionally,the Hall conductance was found to increase with the bias voltage in the range of 0.4-1 V,as calculated by Nanodcal software,demonstrating an improvement in the conductivity of the *** summary,this work provides theoretical guidance for modulating the electrocatalytic nitrogen reduction activity of SACs by varying the ratio of sp/sp2hybrid carbon,with Ti@GY3 showing potential as an excellent NRR catalyst.

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具身认知视角下乡村教师数字素养培育的困境及优化策略

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教学与管理 2024年第3期 45-49页

作者：冯运范牡丹陕西师范大学教育学部西安710062 渭南师范学院教育科学学院陕西渭南714099

目前乡村教师数字素养培育过程中存在身体体验不足、数字认知失衡、数字环境系统不完善等困境。通过具身认知理论分析乡村教师数字素养的生成机理,以身体参与为物质基础,以心智发展为运行中枢,以教师与环境相互统一为催发条件,提供身心... 详细信息

目前乡村教师数字素养培育过程中存在身体体验不足、数字认知失衡、数字环境系统不完善等困境。通过具身认知理论分析乡村教师数字素养的生成机理,以身体参与为物质基础,以心智发展为运行中枢,以教师与环境相互统一为催发条件,提供身心全感官性发展模式。从身体、认知、环境三方面提出重视具身参与,实现教师体会性学习;倡导以人为本,回归教师价值性需求;满足情境交互,营造动态数字化氛围等优化策略,以此培育乡村教师数字素养。

关键词：数字素养乡村教师具身认知教育数字化数字化教学

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新疆达坂城风区顺风向脉动风功率谱

科学技术与工程 2024年第3期24卷 1161-1169页

作者：王逸豪赵锐淡丹辉奉泽华冯磊新疆大学建筑工程学院乌鲁木齐830017 新疆建筑结构与抗震重点实验室乌鲁木齐830017 同济大学桥梁工程系上海200092 中建铁路投资建设集团有限公司东莞523000 中建新疆建工集团第一建筑工程有限公司乌鲁木齐830017

为研究新疆乌鲁木齐所处达坂城风区的复杂脉动风环境,基于实测风场风速数据分析并拟合了该风区的顺风向脉动风功率谱。结果表明:以反比例函数拟合山区峡谷地形平均风速与湍流强度的关系误差较小;山区峡谷地形湍流积分尺度分布较离散,但... 详细信息

为研究新疆乌鲁木齐所处达坂城风区的复杂脉动风环境,基于实测风场风速数据分析并拟合了该风区的顺风向脉动风功率谱。结果表明:以反比例函数拟合山区峡谷地形平均风速与湍流强度的关系误差较小;山区峡谷地形湍流积分尺度分布较离散,但整体随平均风速的增大而增大;考虑地形系数的Kaimal修正谱在含能区和惯性子区间能较好地表征实测谱,在耗能区选用三参数拟合描述实测谱效果良好;选用过渡函数来描述惯性子区间与耗能区接触区域的功率谱,拟合效果较为理想。可见达坂城风区具有特殊顺风向脉动风特性,以修正谱和拟合谱分段构成的函数模型可用于表征该风区顺风向脉动风功率谱。

关键词：顺风向脉动风湍流强度湍流积分尺度风功率谱密度风谱拟合

Clara cells modulate the pulmonary innate immune response in bleomycin-induced pulmonary fibrosis

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Clara cells modulate the pulmonary innate immune response in...

中国生理学会第23届全国会员代表大会暨生理学学术大会

作者： Chen LI,Jian-Zhong HAN,Wei LIU,Lian LI,Li SHEN,dan-dan feng,Wan-Xiang HU,Hui-Jun LIU,Shao-Jie YUE,Zi-Qiang LUO~* Department of Physiology,Xiangya School of Medicine,Central South University,Changsha 410078,China

＜正＞Pulmonary fibrosis is a complex interstitial lung disease resulting from a multitude of lung injury and pathological *** to its unknown etiology and relentless progression to death regardless of treatment,the molecular mechanisms of fibrosisgenesis remain the subject of intense *** epithelial cells secrete proinflammatory mediators during pulmonary fibrogenesis,but cytokine production by a prominent nonciliated bronchiolar epithelial cell,the Clara cell,specifically,is *** assess the impact of Clara cells on cytokine production in the lung in bleomycin-induced pulmonary fibrosis in vivo,airway injury was induced in adult mice before bleomycin by administration of naphthalene,a selective toxicant of Clara cells.A 20-plex kit of luminex based bead immunoassay method was used to profile cytokines expression in the total lung protein of Clara cell ablated mice and their control *** pulmonary fibrosis was induced by intratracheal administration of *** lung hematoxylin eosin staining and Masson’s trichrome staining were used to confirm induction of pulmonary fibrosis by *** results showed that pathologic grade of lesion differed in the two different fibrosis models,and Clara cell selectively ablated lung sections exhibited higher pathologic scores than those from control *** quantification in lungs of mice showed that Clara cells ablation increased expression of Th2 ***-4,IL-5,IL-10 and IL-13 levels in the lung were significantly induced in naphthalene -treated vs saline-treated *** results suggest that Clara cells elaborate cytokines and modulate the lung innate immune response during pulmonary fibrogenesis.

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来源： cnki会议评论

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新时代教育评价改革多元主体的行动逻辑

现代教育技术 2024年第5期34卷 5-15页

作者：朱德全冯丹西南大学教育学部重庆400715

随着“构建政府、学校、社会等多元参与的评价体系”这一改革目标的提出,多元主体在新时代教育评价改革中的价值与作用亟需明确。审视教育评价的本质,可以发现:破解“五唯”问题,推进改革不断深入的关键在于打破评价主体的“单主体论”... 详细信息

随着“构建政府、学校、社会等多元参与的评价体系”这一改革目标的提出,多元主体在新时代教育评价改革中的价值与作用亟需明确。审视教育评价的本质,可以发现:破解“五唯”问题,推进改革不断深入的关键在于打破评价主体的“单主体论”,转向价值主体、评价主体、治理主体的“多主体论”;价值主体、评价主体、治理主体分别以表达价值诉求、履行评价责任、联结主体行动,助推有差异、有动能、有组织的改革落地。然而,当前教育评价改革中多元价值主体诉求的虚置性介入、多元评价主体知能的无力性介入和多元治理主体组织的缺位性介入,致使改革陷入同质、空泛、低效的困境。对此,可以通过权利下沉、教育赋能、秩序重组,来推动教育评价改革不断深入。文章对新时代教育评价改革多元主体行动逻辑的阐释,可以为构建多元主体参与的教育评价体系提供理论参考。

关键词：教育评价价值主体评价主体治理主体 “五唯”问题

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Gamma/Hadron Separation Method for the HADAR Experiment

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Research in Astronomy and Astrophysics 2024年第3期24卷 70-74页

作者： Yang-Zhao Ren Tian-Lu Chen You-Liang feng dan-Zeng Luo-Bu Yi-Qing Guo Cheng Liu Qi Gao Mao-Yuan Liu Xiang-Li Qian Ya-Ping Wang Zi-Hao Zhang Xin-Long Li Qing-Yuan Hou Heng-Jiao Liu Qing-Qian Zhou Shan-Jie Shu The Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of Sciences University of Chinese Academy of Sciences School of Intelligent Engineering Shandong Management University

Ground-based arrays of imaging atmospheric Cherenkov telescopes(IACTs)are the most sensitiveγ-ray detectors for energies of approximately 100 Ge V and *** such IACT is the High Altitude Detection of Astronomical Radiation(HADAR)experiment,which uses a large aperture refractive water lens system to capture atmospheric Cherenkov photons(i.e.,the imaging atmospheric Cherenkov technique).The telescope array has a low threshold energy and large field of view,and can continuously scan the area of the sky being observed,which is conducive to monitoring and promptly responding to transient *** process ofγ-hadron separation is essential in very-high-energy(>30 Ge V)γ-ray astronomy and is a key factor for the successful utilization of *** this study,Monte Carlo simulations were carried out to model the response of cosmic rays within the HADAR *** analyzing the Hillas parameters and the distance between the event core and the telescope,the distinction between air showers initiated byγ-rays and those initiated by cosmic rays was ***,a Quality Factor was introduced to assess the telescope’s ability to suppress the background and to provide a more effective characterization of its performance.

关键词： astroparticle physics-telescopes-methods data analysis

Predictive performance of the variation rate of the driving pressure on the outcome of invasive mechanical ventilation in patients with acute respiratory distress syndrome

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Chinese Journal of Traumatology 2024年第2期27卷 107-113页

作者： Hui-dan Jing Jun-Ying Tian Wei Li Bing-Ling He Hong-Chao Li Fu-Xia Jian Cui Shang feng Shen Department of Intensive Care Unit The Affiliated Hospital of Guizhou Medical UniversityGuiyang 550004China Department of Intensive Care Unit Army Medical Center of PLAChongqing400042China College of Foreign Languges Chongqing Medical UniversityChongqing400016China

Purpose:To assess the value of the driving pressure variation rate(ΔP%)in predicting the outcome of weaning from invasive mechanical ventilation in patients with acute respiratory distress ***:In this case-control study,a total of 35 patients with moderate-severe acute respiratory distress syndrome were admitted to the intensive care unit between January 2022 and December 2022 and received invasive mechanical ventilation for at least 48 h were *** were divided into successful weaning group and failed weaning group depending on whether they could be removed from ventilator support within 14 *** measures including driving pressure,PaO2:FiO2,and positive end-expiratory pressure,*** assessed every 24 h from day 0 to day 14 until successful weaning was *** measurement data of non-normal distribution were presented as median(Q1,Q3),and the differences between groups were compared by Wilcoxon rank sum *** categorical data use the Chi-square test or Fisher's exact test to *** predictive value ofΔP%in predicting the outcome of weaning from the ventilator was analyzed using receiver operating characteristic ***:Of the total 35 patients included in the study,17 were successful vs.18 failed in weaning from a ventilator after 14 days of mechanical *** cut-off values of the medianΔP%measured by Operator 1 *** 2 in the first 4 days were≥4.17%and 4.55%,respectively(p<0.001),with the area under curve of 0.804(sensitivity of 88.2%,specificity of 64.7%)and 0.770(sensitivity of 88.2%,specificity of 64.7%),*** was a significant difference in mechanical ventilation duration between the successful weaning group and the failure weaning group(8(6,13)vs.12(7.5,17.3),p=0.043).The incidence of ventilator-associated pneumonia in the successful weaning group was significantly lower than in the failed weaning group(0.2‰vs.2.3‰,p=0.001).There was a significant difference noted between these

关键词： Driving pressure Driving pressure variation rate Acute respiratory distress syndrome Mechanical ventilation

基于LeNet5like的迁移学习风电机组叶片覆冰故障诊断研究

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仪器仪表学报 2024年第3期45卷 128-143页

作者：吕游封烁郑茜邓丹刘吉臻华北电力大学新能源电力系统全国重点实验室北京102206 华北电力大学控制与计算机工程学院北京102206

针对海上风电场和高海拔地区风机机组的叶片覆冰故障模型精度低、建模速度慢等问题,提出一种基于LeNet5like的迁移学习风电机组叶片覆冰故障诊断方法。首先,整合监控和数据采集系统的记录数据与风机覆冰情况进行预处理,建立训练数据集;... 详细信息

针对海上风电场和高海拔地区风机机组的叶片覆冰故障模型精度低、建模速度慢等问题,提出一种基于LeNet5like的迁移学习风电机组叶片覆冰故障诊断方法。首先,整合监控和数据采集系统的记录数据与风机覆冰情况进行预处理,建立训练数据集;其次,基于改进后的LeNet5like网络构建覆冰故障诊断模型,提取数据集中多变量间的相关性特征信息;然后,经网络参数微调迁移学习对模型进行训练,实现对其他风机覆冰故障诊断模型的快速建立;最后,经实验验证,该模型覆冰故障诊断准确率为98.90%,较无迁移模块网络训练时间缩短28 s,提升约15.91%,验证了基于LeNet5like的迁移学习风电机组叶片覆冰故障诊断方法的精确性和快速性。

关键词：故障诊断叶片覆冰迁移学习 LeNet5like网络 SCADA数据