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Atomic interface regulation of rare-marth metal single atom catalysts for energy conversion

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Nano Research 2024年第5期17卷 3493-3515页

作者： Ziheng Zhan Zhiyi Sun Zihao Wei Yaqiong li Wenxing Chen shenghua li Siping Pang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

Efficient photocatalysis and electrocatalysis in energy conversion have been important strategies to alleviate energy crises and environmental issues.In recent years,with the rapid development of emerging catalysts,significant progress has been made in photocatalysis for converting solar energy into chemical energy and electrocatalysis for converting electrical energy into chemical energy.However,their selectivity and efficiency of the products are poor.Rare earth(RE)can achieve atomic level fine regulation of catalysts and play an crucial role in optimizing catalyst performance by their unique electronic and orbital structures.However,there is a lack of systematic review on the atomic interface regulation mechanism of RE and their role in energy conversion processes.Single atom catalysts(SACs)provide clear active sites and 100%atomic utilization,which is conducive to exploring the regulatory mechanisms of RE.Therefore,this review mainly takes atomic level doped RE as an example to review and discuss the atomic interface regulation role of RE elements in energy conversion.Firstly,a brief introduction was given to the synthesis strategies that can effectively exert the atomic interface regulation effect of RE,with a focus on the atomic interface regulation mechanism of RE.Meanwhile,the regulatory mechanisms of RE atoms have been systematically summarized in various energy conversion applications.Finally,the challenges faced by RE in energy conversion,as well as future research directions and prospects,were pointed out.

关键词： rare earth elements interface regulation effect single-atom catalyst energy conversion

Efficacy and safety of extracorporeal shock wave therapy combined with sodium hyaluronate in treatment of knee osteoarthritis:a systematic review and Meta-analysis

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Journal of Traditional Chinese Medicine 2024年第2期44卷 243-250页

作者： ZHOU Mingwang DONG Zhuanli WEI Changhao FENG Lufang WANG Xiaoping liU Haiping JI Xing YANG Kehu li shenghua Department of Orthopaedics Gansu Provincial Hospital of Traditional Chinese MedicineLanzhou 730050China Department of Quality Management Lanzhou Petrochemical General HospitalLanzhou 730050China Department of Orthopaedics Lanzhou Petrochemical General HospitalLanzhou 730050China Evidence-Based Social Science Research Center School of Public HealthLanzhou UniversityLanzhou730000China Evidence-Based Medicine Center School of Basic Medical SciencesLanzhou UniversityLanzhou 730000China Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province Lanzhou 730000China Center for Translational Medicine Gansu Provincial Hospital of Traditional Chinese MedicineLanzhou 730050China Department of Orthopaedics Gansu Provincial Hospital of Traditional Chinese MedicineLanzhou 730000China

OBJECTIVE:To assess the efficacy and safety of extracorporeal shockwave therapy(ESWT)combined with sodium hyaluronate(HA)for the treatment of knee osteoarthritis(KOA).METHODS:PubM ed,Embase,the Cochrane library,Web of Science,China National Knowledge Infrastructure,Wanfang database,China Science and Technology Journal Database,and SinoMed were searched from inception to July 2020.The quality of the randomized controlled trials was evaluated independently by two reviewers according to the criteria in the Cochrane Collaboration for Systematic Reviews.The identified articles were then screened individually using EndnoteX9 for eligibility in this Meta-analysis.The heterogeneity among the articles was evaluated using I2.RESULTS:A total of 17 studies,comprising 2000 individuals,were included in this Meta-analysis.The results showed that a significant improvement was observed in knee pain and function based on the clinical efficacy of ESWT combined with HA.Statistical analysis of clinical efficacy showed that[relative risk(RR)=1.21,95%confidence interval(CI)(1.12,1.30),Pling of the skin,were observed.CONCLUSIONS:Medium to low quality evidence showed that ESWT combined with HA offers an inexpensive,welltolerated,safe,and effective method to improve pain and functionality in patients with KOA.However,tightly controlled,randomized,large multicenter trials are warranted to validate the current findings.

关键词： osteoarthritis knee randomized controlled trial extracorporeal shockwave therapy hyaluronic acid Meta-analysis

Comparison in phytoplankton diversity-productivity-community stability between river-type reservoir and lake-type reservoir

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Journal of Oceanology and limnology 2022年第4期40卷 1485-1507页

作者： Qiong WU Qiuhua li Huan LUO Qian CHEN Huaxiang CHEN Yanjun DONG shenghua li College of Environment Hohai UniversityNanjing 210098China Pearl River Water Resources Research Institute Guangzhou 510611China Key Laboratory of the Pearl River Estuary Regulation and Protection of Ministry of Water Resources Guangzhou 510611China Guangdong Provincial Engineering Technology Research Center for life and Health of River&Lake Guangzhou 510611China Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province Guizhou Normal UniversityGuiyang 550001China Bureau of Ecological Environment of Xunwu County of Jiangxi Province Xunwu 342200China

Relationship between biodiversity and ecosystem function is one of the core issues in ecological research.Phytoplankton,as the main producer of aquatic ecosystem,its diversity,productivity,and community stability are of great signifi cance to reveal ecosystem function.There are signifi cant diff erences in hydrodynamics,water retention time,and phytoplankton community structure between river-type reservoir and newly built lake-type reservoir.The comparative analysis of phytoplankton community stability between the two types of reservoir has not been reported.Jiuquwan Reservoir(river-type)and Taihu Reservoir(lake-type),the two reservoirs in the Dongjiang River source area of Zhujiang(Pearl)River Basin,were selected for comparison in terms of multi-year operation vs.new impoundment,river-type vs.lake-type,and shallow water vs.sub-deep water reservoirs.Samples were collected in dry season(December 2019),normal season(March 2020),and wet season(August 2020),on which the phytoplankton diversity and productivity of the two reservoirs,and the relationship and diff erence of community stability were examined.Results show that(1)the number of phytoplankton species in Jiuquwan Reservoir decreased comparing that before algal bloom and the restoration treatment,while that in Taihu Reservoir increased compared with that before the impoundment of the reservoir.There was no signifi cant diff erence in functional groups and species number between the two reservoirs(P>0.05);(2)the biological stability,diversity,productivity,and resource utilization effi ciency of newly built lake-type reservoir were higher than those of multi-year river-type reservoir.In addition,the utilization effi ciency of phytoplankton resources was the highest in wet season in both reservoirs.The increases in biodiversity,richness,and evenness promoted the stability of the community,while increases in productivity and resource utilization effi ciency weakened the stability of the community;(3)community stability was aff ected by both biotic and abiotic fact

关键词： community stability functional group stability phytoplankton diversity resource utilization effi ciency reservoir

Common susceptibility variants of KDR and IGF-1R are associated with poststroke depression in the Chinese population

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General Psychiatry 2023年第1期36卷 36-42页

作者： Yingying Yue linlin You Fuying Zhao Kezhong Zhang Yanyan Shi Hua Tang Jianxin Lu shenghua li Jinxia Cao Deqin Geng Aiqin Wu Yonggui Yuan Department of Psychosomatics and Psychiatry ZhongDa HospitalSoutheast UniversityNanjingChina Department of Psychiatry Suzhou High-Tech Development District Yangshan Community HospitalSuzhouChina Department of Neurology The First Affiliated Hospital of Nanjing Medical UniversityNanjingChina Department of Neurology Nanjing First HospitalNangjingChina Department of Neurology The Third People's Hospital of Huai'anHuai'anChina Department of Neurology People's Hospital of Gaochun CountyNanjingChina Department of Neurology The Affiliated Nanjing Jiangning Hospital of Nanjing Medical HospitalNanjingChina Department of Neurology The Second People's Hospital of LianyungangLianyungangChina Department of Neurology The Affiliated Hospital of Xuzhou Medical UniversityXuzhouChina Department of Psychosomatics The Affiliated First Hospital of Soochow UniversitySoochowChina

Background Depression,one of the most frequent complications after stroke,increases the disease’s burden and physical disability.Poststroke depression(PSD)is a multifactorial disease with genetic,environmental and biological factors involved in its occurrence.Genetic studies on PSD to date have mainly focused on the monoamine system and brain-derived neurotrophic factors.However,understanding is still limited about the influence of the single nucleotide polymorphism(SNP)of other neurotrophic factors on PSD.Aims The present study aimed to investigate the relationship between seven vascular endothelial growth factor(VEGF)family gene variants that occur with PSD.Methods A multicentre candidate gene study from five hospitals in Jiangsu Province from June 2013 to December 2014 involved 121 patients with PSD and 131 patients with non-PSD.Demographic characteristics and neuropsychological assessments were collected.Theχ^(2)test was used to evaluate categorical variables,while the independent t-test was applied to continuous variables.SNPs in seven genes(VEGFA,VEGFB,KDR,FLT-1,IGF-1,IGF-1R and PlGF)were genotyped.Single-marker association for PSD was analysed byχ^(2)tests and logistic regression using SPSS and PliNK software.Results Patients with PSD included more women and those with lower education levels,lower body mass indexes,lower Mini-Mental State Examination scores,and higher scores on the 17-item Hamilton Depression Rating Scale than non-PSD patients.Ninety-two SNPs with seven genes were genotyped and passed quality control.The rs7692791 CC genotypes,the C allele of KDR and the rs9282715 T allele of IGF-1R increased the risk for PSD(χ^(2)=7.881,p=0.019;χ^(2)=4.259,p=0.039;χ^(2)=4.222,p=0.040,respectively).In addition,the SNP rs7692791 of KDR was significantly associated with PSD by the logistic regression of an additive model(p=0.015,OR=9.584,95%CI:1.549 to 59.31).Conclusions Patients with rs7692791 C allele carriers or the CC genotype of KDR and the rs9282715 T allele of IGF-1R may have PSD susceptibility.Findin

关键词： KDR susceptibility additive

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工业固体废物处理问题及环境保护措施分析

皮革制作与环保科技 2024年第2期5卷 110-112页

作者：李圣花山东智环环境技术服务有限公司山东临沂276000

本文基于对工业固体废物特点的分析,探讨了目前工业固体废物处理工作中存在的问题,并结合实际情况提出了一些有效且可行的固体废弃物处理方案,包括积极引入先进技术、加强回收利用、推行分级管理、健全协调机制等,从源头上控制生态环境... 详细信息

本文基于对工业固体废物特点的分析,探讨了目前工业固体废物处理工作中存在的问题,并结合实际情况提出了一些有效且可行的固体废弃物处理方案,包括积极引入先进技术、加强回收利用、推行分级管理、健全协调机制等,从源头上控制生态环境的破坏因素,以取得良好的环保效果,同时提升资源的利用效率与质量。

关键词：工业固体废物处理问题环境保护措施

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环保工程中污水处理工艺及方法探究

皮革制作与环保科技 2024年第4期5卷 11-12,18页

作者：李圣花山东智环环境技术服务有限公司山东临沂276000

本文结合具体工作现状探讨了环保工程中污水处理的意义,分析并介绍了目前国内环保工程中比较常用的污水处理工艺及方法,如超声波技术、生物处理法、混凝沉淀法、氧化沟活性污泥法、离子交换法、SPR高浊度污水处理法等,并探讨了污水处理... 详细信息

本文结合具体工作现状探讨了环保工程中污水处理的意义,分析并介绍了目前国内环保工程中比较常用的污水处理工艺及方法,如超声波技术、生物处理法、混凝沉淀法、氧化沟活性污泥法、离子交换法、SPR高浊度污水处理法等,并探讨了污水处理技术的未来发展趋势,希望可以为相关工作人员提供一定的参考。

关键词：环保工程污水处理工艺方法

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硬膜外分娩镇痛对产妇产后抑郁的影响

临床麻醉学杂志 2024年第3期40卷 277-281页

作者：罗威赵继蓉李胜华上海市嘉定区妇幼保健院麻醉科 201821

目的评估硬膜外分娩镇痛(LEA)对产妇产后抑郁(PPD)的影响。方法选择经阴道分娩的初产妇628例,年龄20~36岁,BMI 20~35 kg/m 2,ASAⅡ或Ⅲ级。根据产妇是否接受硬膜外分娩镇痛分为两组:镇痛组(n=322)和非镇痛组(n=306)。记录分娩期间VAS疼... 详细信息

目的评估硬膜外分娩镇痛(LEA)对产妇产后抑郁(PPD)的影响。方法选择经阴道分娩的初产妇628例,年龄20~36岁,BMI 20~35 kg/m 2,ASAⅡ或Ⅲ级。根据产妇是否接受硬膜外分娩镇痛分为两组:镇痛组(n=322)和非镇痛组(n=306)。记录分娩期间VAS疼痛评分最高值、产程时间、出血量、新生儿1、5 min Apgar评分和新生儿入NICU的发生情况。于分娩前1周和产后2周、6周分别采用爱丁堡产后抑郁量表(EPDS)评估PPD发生情况(EPDS评分≥11分为PPD),采用广泛性焦虑量表(GAD-7)评估产妇焦虑情绪,采用领悟社会支持量表(PSSS)评估产妇感受到的总社会支持度。结果与非镇痛组比较,镇痛组产妇分娩期间VAS疼痛评分最高值明显降低(P<0.05)。两组产妇第一产程时间、第二产程时间、出血量、新生儿1、5 min Apgar评分、新生儿入NICU比例差异无统计学意义。两组产妇产后2、6周PPD发生率、PSSS高支持状态、GAD-7≥10分差异无统计学意义。结论初产妇接受LEA不影响产后抑郁的发生风险。

关键词：硬膜外分娩镇痛产后抑郁产后焦虑爱丁堡产后抑郁量表

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空间站高温材料科学实验系统热控设计及验证

北京航空航天大学学报 2024年第3期50卷 814-820页

作者：孙晋川康昌玺谢永齐马动涛李生华崔晓杰兰州空间技术物理研究所兰州730000 北京航空航天大学航空科学与工程学院北京100191

中国空间站高温材料科学实验系统(HTMSES)是中国新一代的可长期在轨运行的综合型多功能空间材料实验装置,其组成复杂、布局紧凑、实验温度高、部组件散热困难,使热控设计难度较大。基于液冷主动控温、辐射间接控温、结构热控一体化协同... 详细信息

中国空间站高温材料科学实验系统(HTMSES)是中国新一代的可长期在轨运行的综合型多功能空间材料实验装置,其组成复杂、布局紧凑、实验温度高、部组件散热困难,使热控设计难度较大。基于液冷主动控温、辐射间接控温、结构热控一体化协同优化设计等多种思路对热控组件进行设计,有效解决热控难题。利用有限元分析软件计算科学实验系统热设计的温度结果;然后开展加热实验对热设计方案进行验证。数据显示HTMSES在提供材料制备所需要的最严苛实验工况(1200℃)情况下,各关键部件处于友好的温度范围内,其中电机最高温度为42.2℃,编码器最高温度为40.6℃,丝杠最高温度为62.4℃,滑块最高温度为59.6℃,导轨最高温度为57.3℃,科学实验系统皮肤可触及部位最高温度为31.6℃,各温度结果均满足热控指标要求,表明设计方案合理可行,为同类型设备热设计提供了一种设计思路和参考依据。

关键词：高温材料科学实验系统热控设计液冷主动控温辐射间接控温热实验

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计量经济学教学模式改革研究

科教导刊 2024年第9期 77-80页

作者：李圣华成玉博延边大学经济管理学院吉林延吉133002 延边大学融合学院吉林延吉133002

文章以延边大学经济管理学院国际经济与贸易专业学生期末成绩作为评价指标,分析了计量经济学课程的教学效果。通过问卷调查的形式,对学生的学习情况进行了调查,发现课程教学中存在课时少,课程安排不合理;学生基础知识储备不足;教学内容... 详细信息

文章以延边大学经济管理学院国际经济与贸易专业学生期末成绩作为评价指标,分析了计量经济学课程的教学效果。通过问卷调查的形式,对学生的学习情况进行了调查,发现课程教学中存在课时少,课程安排不合理;学生基础知识储备不足;教学内容和方法缺乏全面性;考试分值占比不平衡,考核方式单一等问题。根据分析结果,从课程安排、教学方式、教学内容以及考核方式等视角,提出了计量经济学教学改革的相关建议。

关键词：计量经济学教学模式教学改革