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Atmospheric photochemistry and secondary aerosol formation of urban air in Lyon,France

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Journal of Environmental Sciences 2021年第1期33卷 311-323页

作者： Salah Eddine Sbai chunlin li Antoinette Boreave Nicolas Charbonnel Sebastien Perrier Philippe Vernoux Farida Bentayeb Christian George Sonia Gil Department of physics Laboratoires de physique des hauts Energies Modelisation et SimulationMohammed V Uniuersity in RabatRabatMorocco Universite lyon Universite Claude Bernard Lyon 1CNRSIRCELYON2 Auenue Albert Einstein69100 LyonFrance Department of Earth and Planetary Sciences Weizmann Institute of Science76100 RehovotIsrael

Photochemical aging of volatile organic compounds(VOCs)in the atmosphere is an important source of secondary organic aerosol(SOA).To evaluate the formation potential of SOA at an urban site in Lyon(France),an outdoor experiment using a Potential Aerosol Mass(PAM)oxidation flow reactor(OFR)was conducted throughout entire days during JanuaryFebruary *** variation of SOA formations and their correlation with OH radical exposure(OHexp),ambient pollutants(VOCs and particulate matters,PM),Relative Humidity(RH),and temperature were explored in this *** urban air was exposed to high concentration of OH radicals with OHexp in range of(0.2-1.2)×10^12 molecule/(cm^3·sec),corresponding to several days to weeks of equivalent atmospheric photochemical *** results informed that urban air at Lyon has high potency to contribute to SOA,and these SOA productions were favored from OH radical photochemical oxidation rather than via *** SOA formation(36μg/m^3)was obtained at OHexp of about 7.4×10^11 molecule/(cm^3·sec),equivalent to approximately 5 days of atmospheric *** correlation between SOA formation and ambient environment conditions(RH&temperature,VOCs and PM)was *** was the first time to estimate SOA formation potential from ambient air over a long period in urban environment of Lyon.

关键词： Urban air Oxidation Flow Reactor(OFR) Secondary Organic Aerosol(SOA) Volatile Organic Compounds(VOC) Photochemistry Lyon

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卫星遥感在海洋渔业的应用与展望

中国海洋大学学报（自然科学版） 2024年第10期54卷 90-103页

作者：刘阳田浩李春霖范佳玉罗燕萍尹子旭许振琦常棣菁黄传扬中国海洋大学深远海与极地渔业研究中心山东青岛266003

全球气候和海洋环境的变化导致了海洋渔业资源的变动和海洋生物多样性减少,影响了人类食物来源的稳定和社会经济的发展。卫星遥感技术的快速发展为渔业资源的开发与利用提供了新的视角,卫星遥感技术具有实时监测、高空间分辨率和广覆盖... 详细信息

全球气候和海洋环境的变化导致了海洋渔业资源的变动和海洋生物多样性减少,影响了人类食物来源的稳定和社会经济的发展。卫星遥感技术的快速发展为渔业资源的开发与利用提供了新的视角,卫星遥感技术具有实时监测、高空间分辨率和广覆盖等优势,卫星遥感与地理信息系统、导航定位、人工智能等技术的结合应用,能够为发展海洋渔业新质生产力、构建多元化食物供给体系提供有力的技术支撑。本文从近岸、远洋和极地的视角综述了卫星遥感技术在沿岸养殖、近岸渔业、远洋渔业和极地渔业中的应用方法和案例,探讨了渔业遥感在渔业资源监测与评估、养殖空间规划与选址、灾害风险预警、水生生物资源养护、远洋渔场预测、渔船监测管理、极地生态系统监测等领域的现状与前景。提出渔业遥感未来的发展方向为开发新一代微小卫星以提供高精度渔业遥感产品、结合人工智能发展智慧渔业、建立全球渔业信息与数据共享网络等。

关键词：卫星遥感渔业资源渔场预测渔业管理极地渔业

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长输供热管线中AFT Impulse软件的水力瞬态分析与应用

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区域供热 2024年第2期 147-158页

作者：王皓宋平邢芳丁思源李春林高逸峰中国中元国际工程有限公司北京100089 北京市建筑设计研究有限责任公司北京100045 国网(北京)综合能源规划设计研究院北京100161

结合同类煤电机组余热利用长距离大温差供热项目经验,从基本原理开始阐述,介绍了AFT Impulse软件在工程实例中的应用,逐步说明有压管道水力瞬态分析,并结合工程案例,分析出非恒定流体向恒定流体变化过程中产生的水击波对供热系统的危害... 详细信息

结合同类煤电机组余热利用长距离大温差供热项目经验,从基本原理开始阐述,介绍了AFT Impulse软件在工程实例中的应用,逐步说明有压管道水力瞬态分析,并结合工程案例,分析出非恒定流体向恒定流体变化过程中产生的水击波对供热系统的危害,结合数学模型分析提出的心得及建议,以便将水力瞬态分析的成果在供热系统中更好地推广和应用,有效地指导设计与工程建设。

关键词：常熟供热供热管线有压管线瞬态分析非恒定流体水击波

Spatial patterns and influencing factors of intraurban particulate matter in the heating season based on taxi monitoring

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Ecosystem Health and Sustainability 2022年第1期8卷 214-227页

作者： Chong liu Yuanman Hu Yu Chang Miao liu Zaiping Xiong Tan Chen chunlin li CAS Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyangChina College of Resources and Environment University of Chinese Academy of SciencesBeijingChina Key Laboratory of Watershed Geographic Sciences Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjingChina Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration East China Normal UniversityShanghaiChina

Urbanization has introduced a series of environmental problems worldwide,and particulate matter(PM)is one of the main threats to human *** to the lack of high-resolution,large-scale monitoring data,few studies have analyzed the intraurban spatial distribution pattern of PM at a fine *** this study,portable air monitors carried by five taxis were used to collect the concentrations of PM1,PM2.5 and PM10 for five months in Shenyang during the heating *** results showed that high concentrations of PM were distributed in the suburbs,while relatively low concentration areas were found in the central ***,industrial and development zones had higher concentration values among the eight observed *** PM concentration exhibited strong spatial autocorrelation based on Moran’s I index *** factors were the most important influencing factors of the three pollutants,and their total contribution rate accounted for more than 80%among the 13 factors according to boosted regression trees *** taxi monitoring method we proposed was a more efficient and feasible method for monitoring urban air pollution and could obtain higher spatial-temporal resolution data at a lower cost to elucidate the region’s dynamic air pollution distribution patterns.

关键词： Particulate matter taxi monitoring heating season spatial pattern urbanization Shenyang

安徽省鸟类分布新记录—大红鹳Phoenicopterusroseus

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安徽大学学报（自然科学版） 2024年第2期48卷 102-104页

作者：潘成荣徐升钱贞兵宋昀微王光耀宋向荣李春林安徽省生态环境监测中心安徽合肥230001 安徽升金湖国家级自然保护区管理处安徽池州247200 安徽大学资源与环境工程学院安徽合肥230601

2022年12月17日,笔者所在的调查队伍在安徽省升金湖国家级自然保护区西山村(30°19′36″N,117°01′10″E,海拔6 m)开展越冬水鸟调查时,记录到大红鹳Phoenicopterus roseus 1只.查阅相关专著与文献资料后,确定该种为安徽省鸟类分布新记录.

关键词：安徽省新记录大红鹳

超大地面荷载下盾构工作井叠合结构的力学响应

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济南大学学报（自然科学版） 2024年第1期38卷 29-36,47页

作者：宋博刘俊岩刘燕宋享桦扈萍李春林张亮亮孙文昊济南大学土木建筑学院山东济南250022 济南城市建设集团有限公司山东济南250014 中铁第四勘察设计院集团有限公司湖北武汉430063

为了解决现行盾构工作井的设计缺乏对超大地面荷载作用的验算问题,通过开展室内缩尺模型试验,研究盾构工作井从施工期到服役期在超大地面荷载下地下连续墙与主体结构侧墙所构成叠合结构的力学响应,并考虑盾构工作井周围土体中地下水的作... 详细信息

为了解决现行盾构工作井的设计缺乏对超大地面荷载作用的验算问题,通过开展室内缩尺模型试验,研究盾构工作井从施工期到服役期在超大地面荷载下地下连续墙与主体结构侧墙所构成叠合结构的力学响应,并考虑盾构工作井周围土体中地下水的作用,探讨土体抗剪强度减小对超大地面荷载最大值的影响。结果表明:在超大地面荷载作用下,盾构工作井中隔墙的抗压刚度较大,以受压的形式承担了大量的荷载效应,导致叠合结构上部容易发生低应力水平下的整体水平位移,进而在围护结构底部发生失稳,导致整体破坏;主体结构侧墙在施工期的初始挠度及叠合结构整体水平位移使得叠合结构中地下连续墙承担了大部分内力;通过观测室内缩尺模型中叠合结构的变形量,由模型数据换算得到盾构工作井顶部极限超载为445.5 kPa,远大于盾构工作井周围土体地基承载力特征值130 kPa,验证了采用地基承载力对超大地面荷载下地面硬化进行设计的安全、可靠性。

关键词：盾构工作井叠合结构超大地面荷载模型试验地基承载力

Bird communities’responses to human-modified landscapes in the southern Anhui Mountainous Area

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Avian Research 2022年第1期13卷 49-56页

作者： Xue Wang Guang Zhu Haohao Ma Yi Wu Wenwen Zhang Yong Zhang chunlin li Willem F.deBoer School of Resources and Environmental Engineering Anhui UniversityHefei230601China School of life Sciences Anhui UniversityHefei230601China Nanjing Institute of Environmental Sciences Ministry of Ecology and EnvironmentNanjing210042China College of Biology and the Environment Nanjing Forestry UniversityNanjing210037China Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration Anhui UniversityHefei230601China Wildlife Ecology and Conservation Group Wageningen University&Research6708PBWageningenthe Netherlands

Conversion of natural environments to human-modified landscapes is continuing at an unprecedented rate,exerting fundamental influences on global *** how wildlife communities respond to landscape modifications is critical to improve biodiversity conservation in human-dominated *** this study,we surveyed bird communities in three common habitats(i.e.,farmland,village,and forest)in the southern Anhui Mountainous Area during summer(August 2019)and winter(December 2020).The diversity metrics and species compositions of the avian communities were compared among the habitats,and the effects of land use composition in these habitats were *** the field surveys,we recorded 7599 birds of 120 species along 45 line transects of 1km in *** land use compositions differed among habitats,and land use diversity was the highest in villages and lowest in *** species richness and bird abundance in the two human-dominated habitats(i.e.,farmland and village)were higher than those in forest in both *** species composition also differed across habitat types in both *** species feeding on vertebrates,fish and carrion,and species feeding on plants and seeds were mainly found in habitats with less construction lands and lower land use diversity,while omnivorous species and species feeding on fruits and nectar or on invertebrates were less affected by these two *** indicator species analysis showed that most species associated with forest feed on invertebrates,while species feeding on plants and seeds were more correlated with farmland and *** results indicated that the conversion of natural habitats to human-dominated landscapes has pronounced impacts on bird communities in the study ***-dominated habitats harboured more avian species that deserve conservation ***,bird conservations should not be relaxed in forests because there were more than 20 species that had a high specific

关键词： Community composition Habitat changes Human interference Intermediate disturbance hypothesis Species diversity

A 7-year follow-up study of the features and transformations of elderly male patients with OGTT-1h hyperglycemia

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Frontiers of Medicine 2008年第4期2卷 396-399页

作者： Hui TIAN Changyu PAN Juming LU chunlin li Wenwen ZHONG Xiutang CAO Department of Elderly Endocrinology General Hospital of PLABeijing 100853China Department of Endocrinology General Hospital of PLABeijing 100853China Department of Medical Management General Hospital of PLABeijing 100853China

The aim of this paper is to investigate the clin-ical features and transformation of elderly male patients with normal blood glucose levels at fasting and 2 hours after glucose intake but with hyperglycemia(>11.1 mmol/L)1 hour after oral glucose tolerance test(OGTT-1h HG).Seven years of follow-up visits were per-formed on 189 elderly male outpatients with OGTT-1h HG and data was recorded on their body mass index(BMI),blood pressure,serum cholesterol and triglyceride test results and on their glucose tolerance changes every 1–2 years after taking OGTT;their possible causes were ***-up visits revealed that 19 patients with OGTT-1h HG were diagnosed with diabetes(10.1%),78 patients with impaired glucose tolerance(IGT,41.3%),2 patients transformed to normal glucose tolerance(NGT,1.1%)and the remaining 90 patients(47.6%)remained *** comparison with IGT patients showed that the ratio of OGTT-1h HG patients turning to diabetes was lower than that of IGT patients(21.1%,x2513.05,P,0.01),and the ratio of OGTT-1h HG patients transforming to NGT was slightly higher(0.4%,x252.46,P.0.05).The prevalence of complications of hypertension,coronary heart disease,cerebral vascular diseases and dyslipidemia in patients with OGTT-1h HG were higher than those with NGT(P,0.05)and were similar to that of IGT *** a special phenotype of OGTT and as part of an abnormal glucose tolerance con-formation,patients with OGTT-1h HG warrant special attention,since about half of them were found to have developed diabetes or IGT,and their risk of suffering from vascular diseases were also increased.

关键词： glucose tolerance test clinical features trans-formation

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‘鄂选1号’山桐子组培无性系种苗调查分析

中国农学通报 2024年第19期40卷 19-23页

作者：顿春垚李双龙吴代坤李春霖胡钧恩吴家刚国家林业草原山桐子工程技术研究中心湖北利川445400 恩施土家族苗族自治州林业科学研究院湖北恩施445000 湖北旭舟林农科技有限公司湖北利川445400

为探究组培无性系在早期的表现特征,初步确定无性系的一致性,并且探索山桐子良种选育的早期评价方法,选择2年生的‘鄂选1号’山桐子组培无性系种苗作为研究对象,通过对苗高、地径、分枝数、枝下高、冠幅、分枝长度与分枝角、分枝间夹角... 详细信息

为探究组培无性系在早期的表现特征,初步确定无性系的一致性,并且探索山桐子良种选育的早期评价方法,选择2年生的‘鄂选1号’山桐子组培无性系种苗作为研究对象,通过对苗高、地径、分枝数、枝下高、冠幅、分枝长度与分枝角、分枝间夹角等指标进行调查分析,对其地上部分的营养器官进行表型评价。研究结果显示,2年生的‘鄂选1号’山桐子组培无性系种苗平均地径为18.40 cm,平均苗高为128.5cm,平均枝下高为71.67cm;分枝数均为5,随着分枝位置的升高,分枝的平均长度呈逐渐减小的趋势,并且符合Logistic模型;分枝角度相对一致,平均为52.83°,垂直位置上相邻分枝的夹角相对稳定,平均为142.19°,水平投影上相邻分枝的夹角也比较一致,平均为72°。结果表明,‘鄂选1号’山桐子组培无性系种苗具有较好的一致性。

关键词：山桐子组织培养无性系表型苗期