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Evolution hydrothermal aging resistance mechanism study of zirconium and manganese doped CeO_(2)catalysts in soot catalytic combustion based on low Miller indices crystal surface effect

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Journal of Rare Earths 2024年第7期42卷 1272-1281,I0003页

作者： Zonglin Li Pan Wang hong ni Chengcheng Ao Lidong Zhang Hefeng Zhang Kai Li School of Automotive and Traffic Engineering Jiangsu UniversityZhenjiang212013China State Environmental Protection Key Laboratory of Vehicle Emission Control and Simulation Chinese Research Academy of Environmental ScienceBeijing100012China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei230026China

The thermogravimetric analysis(TGA)experiments were carried out to reveal the mechanism of Zr and Mn doping on catalytic activity of CeO_(2)catalyst both fresh and after hydrothermal aging,and the lattice morphology and valence changes were characterized by means of Brunauer-Emmett-Teller(BET)method,X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),and H_(2)-temperature programmed reduction(H_(2)-TPR).Density functional theory(DFT)and molecular thermodynamics calculations were applied to investigate the change in catalytic activity,crystal surface energy and crystal morphology caused by hydrothermal *** maximum reaction rate temperature of fresh Mn/CeO_(2)(389℃)is similar to that of CeO_(2)(371℃)and lower than that of Zr/CeO_(2)(447℃),but the catalytic performance of CeO_(2)decreases more severely after hydrothermal *** catalyst crystals show different degrees of crystal surface migration after hydrothermal aging,which leads to the reduction of Ce^(3+)/Ce^(4+) ratio and the active sites *** calculations indicate that the doping of Zr and Mn reduces the surface energy of the low Miller indices surface and increases the oxygen vacancy formation energy,leading to better thermal stability and lower catalytic *** Zr and Mn doping also changes the adsorption energy and Gibbs free energy of H_(2)O,which dominates the migration of(111)to(110)and(100)in the vapor *** crystal surface migration mechanism of CeO_(2)catalysts doped with Zr and Mn induced by H_(2)O molecules at high temperature obtained in this study can provide a valuable addition to the regeneration of CeO_(2)catalysts in the after-treatment systems of diesel engines.

关键词： Soot CeO_(2)-based catalyst CDPF Rare earth metal oxides DFT calculations

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CAGCN:Centrality-Aware Graph Convolution Network for Anomaly Detection in Industrial Control Systems

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Journal of Computer Science & Technology 2024年第4期39卷 967-983页

作者： Jun Yang Yi-Qiang Sheng Jin-Lin Wang hong ni National Network New Media Engineering Research Center Institute of AcousticsChinese Academy of SciencesBeijing 100190China School of Electronic Electrical and Communication EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China

In industrial control systems,the utilization of deep learning based methods achieves improvements for anomaly ***,most current methods ignore the association of inner components in industrial control *** industrial control systems,an anomaly component may affect the neighboring components;therefore,the connective relationship can help us to detect anomalies *** this paper,we propose a centrality-aware graph convolution network(CAGCN)for anomaly detection in industrial control *** the traditional graph convolution network(GCN)model,we utilize the concept of centrality to enhance the ability of graph convolution networks to deal with the inner relationship in industrial control *** experiments show that compared with GCN,our CAGCN has a better ability to utilize this relationship between components in industrial control *** performances of the model are evaluated on the Secure Water Treatment(SWaT)dataset and the Water Distribution(WADI)dataset,the two most common industrial control systems datasets in the field of industrial anomaly *** experimental results show that our CAGCN achieves better results on precision,recall,and F1 score than the state-of-the-art methods.

关键词： graph convolution network(GCN) data mining network centrality anomaly detection industrial control system

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nicotinamide adenine dinucleotide treatment confers resistance to neonatal ischemia and hypoxia:effects on neurobehavioral phenotypes

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Neural Regeneration Research 2024年第12期19卷 2760-2772页

作者： Xiaowen Xu Xinxin Wang Li Zhang Yiming Jin Lili Li Meifang Jin Lianyong Li hong ni Division of Brain Science Institute of Pediatric ResearchChildren’s Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Department of Pediatric Orthopedics Shengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina

Neonatal hypoxic-ischemic brain injury is the main cause of hypoxic-ischemic encephalopathy and cerebral ***,there are few effective clinical treatments for neonatal hypoxic-ischemic brain ***,we investigated the neuroprotective and molecular mechanisms of exogenous nicotinamide adenine dinucleotide,which can protect against hypoxic injury in adulthood,in a mouse model of neonatal hypoxic-ischemic brain *** this study,nicotinamide adenine dinucleotide(5 mg/kg)was intraperitoneally administered 30 minutes befo re surgery and every 24 hours *** results showed that nicotinamide adenine dinucleotide treatment improved body weight,brain structure,adenosine triphosphate levels,oxidative damage,neurobehavioral test outcomes,and seizure threshold in experimental *** mass tag proteomics revealed that numerous proteins were altered after nicotinamide adenine dinucleotide treatment in hypoxic-ischemic brain injury *** reaction monitoring and western blotting confirmed changes in the expression levels of proteins including serine(or cysteine)peptidase inhibitor,clade A,member 3N,fibronectin 1,5'-nucleotidase,cytosolic IA,microtubule associated protein 2,and complexin *** analyses showed that nicotinamide adenine dinucleotide ameliorated hypoxic-ischemic injury through inflammation-related signaling pathways(e.g.,nuclear factor-kappa B,mitogen-activated protein kinase,and phosphatidylinositol 3 kinase/protein kinase B).These findings suggest that nicotinamide adenine dinucleotide treatment can improve neurobehavioral phenotypes in hypoxic-ischemic brain injury mice through inflammation-related pathways.

关键词： brain injury cerebral palsy hypoxia hypoxic-ischemic brain injury inflammation neuroprotection nicotinamide adenine dinucleotide neonate nicotinamide adenine dinucleotide proteomics

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A circular single-stranded DNA mycovirus infects plants and confers broad-spectrum fungal resistance

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Molecular Plant 2024年第6期17卷 955-971页

作者： Xianhong Wang Ioly Kotta-Loizou Robert H.A.Coutts Huifang Deng Zhenhao Han ni hong Karim Shafik Liping Wang Yashuang Guo Mengmeng Yang Wenxing Xu Guoping Wang National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops Wuhan 430070China Hubei hongshan Laboratory Wuhan 430070China College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 430070China Key Lab of Plant Pathology of Hubei Province Wuhan 430070China Department of Life Sciences Faculty of Natural SciencesImperial College LondonLondon SW72AZUK Department of Clinical Pharmaceutical and Biological ScienceSchool of Life and Medical SciencesUniversity of HertfordshireHatfield AL109ABUK Department of Plant Pathology Faculty of AgricultureAlexandria UniversityAlexandria 21526Egypt

Circular single-stranded DNA(ssDNA)viruses have been rarely found in fungi,and the evolutionary and ecological relationships among ssDNA viruses infecting fungi and other organisms remain *** this study,a novel circular ssDNA virus,tentatively named Diaporthe sojae circular DNA virus 1(DsCDV1),was identified in the phytopathogenic fungus Diaporthe sojae isolated from pear ***1 has a monopartite genome(3185 nt in size)encapsidated in isometric virions(21-26 nm in diameter).The genome comprises seven putative open reading frames encoding a discrete replicase(Rep)split by an intergenic region,a putative capsid protein(CP),several proteins of unknown function(P1-P4),and a long intergenic ***,the two split parts of DsCDV1 Rep share high identities with the Reps of Geminiviridae and Genomoviridae,respectively,indicating an evolutionary linkage with both *** analysis based on Rep or CP sequences placed DsCDV1 in a unique cluster,supporting the establishment of a new family,tentatively named Gegemycoviridae,intermediate to both ***1 significantly attenuates fungal growth and nearly erases fungal virulence when transfected into the host ***,DsCDV1 can systematically infect tobacco and pear seedlings,providing broad-spectrum resistance to fungal *** localization analysis revealed that DsCDV1 P3 is systematically localized in the plasmodesmata,while its expression in trans-complementation experiments could restore systematic infection of a movement-deficient plant virus,suggesting that P3 is a movement ***1 exhibits unique molecular and biological traits not observed in other ssDNA viruses,serving as a link between fungal and plant ssDNA viruses and presenting an evolutionary connection between ssDNA viruses and *** findings contribute to expanding our understanding of ssDNA virus diversity and evolution,offering potential biocontrol applications for managing crucial plant d

关键词： circular single-stranded DNA virus mycovirus virus evolution Genomoviridae Gegemycoviridae Diaporthe sojae circular DNA virus 1

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宏观数据与微观感受的“温差”:现象、成因与对策

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经济学家 2024年第5期 87-96页

作者：倪红福冀承中国社会科学院大学应用经济学院中国社会科学院经济研究所中国人民大学应用经济学院

本文主要从国民经济核算视角深入探究了宏观数据与微观感受之间“温差”的现象、成因及对策。宏微观不一致的典型现象包括宏观经济中高速增长与微观企业盈利水平普遍下降存在不同步性、居民可支配收入稳步增长与实际获得感较低具有显著... 详细信息

本文主要从国民经济核算视角深入探究了宏观数据与微观感受之间“温差”的现象、成因及对策。宏微观不一致的典型现象包括宏观经济中高速增长与微观企业盈利水平普遍下降存在不同步性、居民可支配收入稳步增长与实际获得感较低具有显著差异、总体就业形势稳中向好与青年就业形势较为严峻产生明显背离。“温差”形成背后的深层次原因在于国民经济核算方法的加总偏差、对宏观数据的认识存在个体感受的“幻觉”和信息偏差、收入分配不均和居民资产负债表受损等多个方面。本文主要从加强宏微观核算数据的整合、改进数据采集与统计方式,提振微观主体预期和信心、优化收入分配结构四个方面提出了弥合“温差”的对策建议。

关键词：宏观数据微观感受温差国民经济核算

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Protective effects of quercetin against H2O2 induced KGN cells injury

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Traditional Medicine Research 2024年第2期9卷 1-7页

作者： ning Zhang Hui-Xia Zhang Xiao-Ling Ma Jin-ni hong Reproductive Medicine Center Lanzhou University First HospitalLanzhou 730030China Department of Traditional Chinese Medicine Guangdong Provincial People's Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou 510080China

Background:Oxidative stress is one of the key contributors to cellular senescence and ovarian *** has a variety of physiological activities such as *** that hydrogen peroxide can cause oxidative damage to cells,the present study is designed to verify the protective effect of quercetin on human ovarian granulosa tumor cell line under oxidative ***:Cell counting kit-8 and lactate dehydrogenase assays examined cell viability and *** cytometry detected reactive oxygen species *** level was measured to analyze the oxidation *** apoptosis was evaluated by Hoechst 33258 staining,acridine orange/Ethidium Bromide staining and western *** mitochondrial structure was observed under a transmission electron *** membrane integrity was detected by JC-1 staining and western ***:Hydrogen peroxide could induce cell injury,promote reactive oxygen species accumulation,and lead to glutathione *** peroxide also resulted in mitochondrial morphological damage and depolarization,which activate caspase3/9 ***,quercetin could mitigate these ***:Present study found that hydrogen peroxide induced oxidative stress and mitochondrial apoptosis of human ovarian granulosa tumor cell line cells,which could be attenuated by quercetin.

关键词： oxidative stress granulosa cells apoptosis mitochondria quercetin

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扎实做好新时代城乡历史文化保护传承工作

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工程建设标准化 2024年第5期 8-13页

作者：倪虹住房和城乡建设部

中华优秀传统文化是中华文明的智慧结晶和精华所在,是中华民族的根和魂。城乡历史文化遗产承载着中华民族的基因和血脉,蕴藏着中国人民的伟大创造、卓越智慧和共同记忆,是中华文明连续性、创新性、统一性、包容性、和平性的有力见证。... 详细信息

中华优秀传统文化是中华文明的智慧结晶和精华所在,是中华民族的根和魂。城乡历史文化遗产承载着中华民族的基因和血脉,蕴藏着中国人民的伟大创造、卓越智慧和共同记忆,是中华文明连续性、创新性、统一性、包容性、和平性的有力见证。习近平总书记在党的二十大报告中明确提出,“加大文物和文化遗产保护力度,加强城乡建设中历史文化保护传承”。新征程上,我们要深入学习贯彻习近平新时代中国特色社会主义思想特别是习近平文化思想,切实担负起新的文化使命,扎实推进城乡历史文化保护传承工作。

关键词：习近平新时代中国特色社会主义思想文化保护传承中华优秀传统文化文化使命文化遗产保护城乡建设历史文化遗产中华文明

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医院办公室文书档案电子化管理的有效策略

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数字通信世界 2024年第8期 226-228页

作者：洪霓南华大学附属第二医院湖南衡阳421001

目前,医院在提倡电子化管理的进程中,面临着技术、人才、标准化和法律隐私的诸多挑战。为此,该文分析了医院办公室文书档案电子化管理的重要性,结合当前医院办公室文书档案电子化管理面临的问题,提出了切实可行的管理策略,旨在提升和完... 详细信息

目前,医院在提倡电子化管理的进程中,面临着技术、人才、标准化和法律隐私的诸多挑战。为此,该文分析了医院办公室文书档案电子化管理的重要性,结合当前医院办公室文书档案电子化管理面临的问题,提出了切实可行的管理策略,旨在提升和完善医院电子化档案的实施。

关键词：医院办公室文书档案电子化管理

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三阶风险态度对保险需求的影响:理论分析和实验验证

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保险研究 2024年第9期 60-77页

作者：郭振华任钊弘倪红霞上海对外经贸大学金融管理学院上海对外经贸大学保险系上海对外经贸大学金融管理学院保险系

早期,学者们只关注到二阶风险态度“风险厌恶”对个体风险决策的影响,后来,有学者发现三阶风险态度“谨慎”和四阶风险态度“节制”对个体风险决策的影响同样不容忽视。在Fei et al.(2008)关于单维度和零均值背景风险的研究基础上,本文... 详细信息

早期,学者们只关注到二阶风险态度“风险厌恶”对个体风险决策的影响,后来,有学者发现三阶风险态度“谨慎”和四阶风险态度“节制”对个体风险决策的影响同样不容忽视。在Fei et al.(2008)关于单维度和零均值背景风险的研究基础上,本文同时引入财富和健康两个维度的三阶风险态度“谨慎”和“交叉谨慎”,将“零均值背景风险”一般化为“零均值和负均值背景风险”以更加符合现实状况,进一步从理论上分析了三阶风险态度对保险需求的影响。之后,通过行为实验测量了受试者关于财富、健康两个维度的各阶风险态度和受试者保险需求,实证检验了三阶风险态度“谨慎”和“交叉谨慎”对保险需求的影响。实验研究发现:第一,无论在财富维度还是健康维度,谨慎和不节制都是普遍存在的,关于财富的交叉谨慎、交叉不节制在受试者群体中也同样显著;第二,对理论分析得到的三阶风险态度影响保险需求的四条理论预测进行验证,发现有两条理论预测与实验结果一致,另外两条理论预测与实验结果不一致。可见,建立在理性假设和期望效用最大化原则基础上的三阶风险态度影响保险需求的逻辑是一种理想化的保险需求理论,在现实世界并非完全适用,具备现实解释力的应该是反映消费者真实决策过程和影响因素的行为保险需求理论。

关键词：三阶风险态度保险需求谨慎交叉谨慎

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人海型保险代理人制度是如何炼成的?——基于产品特性和信任资源的理论分析

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保险研究 2024年第5期 43-61页

作者：郭振华倪红霞上海对外经贸大学金融管理学院上海对外经贸大学金融管理学院保险系

保险代理人制度对寿险业发展至关重要,但现有文献尚未对寿险业普遍采用的人海型保险代理人制度的内在机理和经营规律进行深入理论分析。本文借助行为保险经济学揭示的消费者非理性导致的保险产品弱需求特性,引入认知心理学中的有限注意... 详细信息

保险代理人制度对寿险业发展至关重要,但现有文献尚未对寿险业普遍采用的人海型保险代理人制度的内在机理和经营规律进行深入理论分析。本文借助行为保险经济学揭示的消费者非理性导致的保险产品弱需求特性,引入认知心理学中的有限注意力理论、社会学中的信任理论以及基于社会脑的邓巴数理论,对保险代理人制度进行系统理论分析,得到如下结论:第一,寿险业的大多数产品都是承保小概率风险的保障性产品和长期储蓄性产品,这些产品的弱需求特性会导致消费者注意力配给不足,进而导致直接推销这些弱需求类人身险失效;第二,弱需求类人身险产品强烈依赖消费者对业务员的认同型信任(而非消费者对公司的认知型信任)达成交易,认同型信任是寿险业看重的重要资源;第三,实施人海型保险代理人制度就是为了有效利用高度分散的认同型信任资源,推动业务快速发展,但必然会带来代理人素质偏低、大进大出、重增员轻培养等问题;第四,代理人数触及市场容量决定的上限后,会逐渐走低,带动保险业务规模下滑,由此,代理人制度将不得不从“主要利用现成认同型信任资源的初级阶段”向“主要利用新创认同型信任资源的新阶段”痛苦转型,直至进入新的市场均衡。本文可为保险代理人制度改革提供一定的理论基础。

关键词：保险代理人制度人海战术注意力资源认同型信任制度转型

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