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Characteristics and source attribution of PM2.5 during 2016 G20 Summit in Hangzhou: Efficacy of radical measures to reduce source emissions

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Journal of Environmental Sciences 2021年第8期33卷 47-65页

作者： Ke Chen Sarah E.Metcalfe Huan Yu Jingsha Xu Honghui Xu Dongsheng Ji chengjun wang Hang Xiao Jun He Department of Chemical and Environmental Engineering University of Nottingham Ningbo ChinaNingbo315100China School of Geography University of NottinghamNottinghamNG72RDUK Department of Atmospheric Science School of Environmental StudiesChina University of GeosciencesWuhan430074China School of Geography Earth and Environmental SciencesUniversity of BirminghamEdgbastonBirminghamB152TTUnited Kingdom Zhejiang Institute of Metrological Sciences Hangzhou310008China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China College of Resources and Environmental Science South-Central University for NationalitiesWuhan430074China Centre for Excellence in Regional Atmos.Environ.Institute of Urban Environment Chinese Academy SciencesXiamen361021China Key Laboratory of Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province University of Nottingham Ningbo ChinaNingbo315100China

A field campaign was conducted to study the PM2.5 and atmospheric gases and aerosol’s components to evaluate the efficacy of radical measures implemented by the Chinese government to improve air quality during the 2016 G20 Summit in Hangzhou *** lower level of PM2.5(32.48±11.03μg/m3)observed during the control period compared to precontrol and post-control periods showed that PM2.5 was alleviated by control *** on the mass concentrations of particulate components,the emissions of PM2.5 from local sources including fossil fuel,coal combustion,industry and construction were effectively reduced,but non-exhaust emission was not reduced as effectively as *** accumulation of SNA(SO42-,NO3-,NH4+)was observed during the control period,due to the favourable synoptic weather conditions for photochemical reactions and heterogeneous *** of transboundary transport during the control period,air masses from remote areas contributed significantly to local ***,secondary organic carbon(OCsec)exhibited more sensitivity than primary organic carbon(OCpri)to control measures,and the increased nitrogen oxidation ratio(NOR)implied the regional transport of aged sec-ondary aerosols to the study ***,the results from various approaches revealed that local pollution sources were kept under control,indicating that the implementation of mitigation measures were helpful in improving the air quality of Hangzhou during G20 *** reduce ambient levels of PM2.5 further in Hangzhou,regional control policies may have to be taken so as to reduce the impact of long-range transport of air masses from inland China.

关键词： G20 Summit PM2.5 Long-range transport CMB model

More International Cooperation for Better Buildings

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International Understanding 2017年第2期 28-32页

作者： wang chengjun wang Shan Beijing Municipal Commission of Housing and Urban-rural Development

*** cooperation in building consultancy&design in Beijing Generally,developed countries such as the UK,France,USA and Australia are leading in the world in building consultancy & design,as some landmark buildings in B... 详细信息

关键词： for on more In it of More International Cooperation for Better Buildings mode in than is that TFP have

紫外/高铁酸盐耦合体系降解水中四种类固醇激素的研究

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中南民族大学学报（自然科学版） 2024年第5期43卷 585-592页

作者：高泽宇田振刘思玉赵鑫月兰广偲王成俊中南民族大学资源与环境学院武汉430074

研究了UV/Fe(Ⅵ)耦合体系对水中类固醇激素污染物的降解,考察了Fe(Ⅵ)浓度、pH、无机离子及溶解性有机质对降解污染物的影响.结果表明:与单独使用UV和Fe(Ⅵ)相比,UV/Fe(Ⅵ)耦合体系效率更高,由于UV活化Fe(Ⅵ)后加速分解产生了氧化性更强... 详细信息

研究了UV/Fe(Ⅵ)耦合体系对水中类固醇激素污染物的降解,考察了Fe(Ⅵ)浓度、pH、无机离子及溶解性有机质对降解污染物的影响.结果表明:与单独使用UV和Fe(Ⅵ)相比,UV/Fe(Ⅵ)耦合体系效率更高,由于UV活化Fe(Ⅵ)后加速分解产生了氧化性更强的Fe(Ⅳ)和Fe(Ⅴ)来降解污染物.在Fe(Ⅵ)浓度为0.8 mmol·L^(-1)时,pH值为5.0~11.0的中性和碱性条件下,UV-254 nm光照40 min后四种类固醇激素污染物降解率均达到87.9%以上,环境水体中常见无机离子对UV/Fe(Ⅵ)体系降解污染物无显著影响,但高浓度溶解性有机质有一定抑制作用.说明UV/Fe(Ⅵ)耦合体系是一种具有良好应用前景的去除含类固醇激素污染物的水处理方法.

关键词：紫外光高铁酸盐类固醇激素

RAD-seq data reveals robust phylogeny and morphological evolutionary history of Rhododendron

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Horticultural Plant Journal 2024年第3期10卷 866-878页

作者： Yuanting Shen Gang Yao Yunfei Li Xiaoling Tian Shiming Li Nian wang chengjun Zhang Fei wang Yongpeng Ma Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China University of Chinese Academy of Sciences Beijing 100049China Beijing Genomics of Institute ShenzhenGuangdong 518120China Guiyang Institute of Humanities and Technology GuiyangGuizhou 550025China State Forestry and Grassland Administration Key Laboratory of Silviculture in Downstream Areas of the Yellow River College of ForestryShandong Agricultural UniversityTai'anShandong 271018China The Southwest China of Germplasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China West China Subalpine Botanical Garden Institute of BotanyChinese Academy of SciencesChengduSichuan 611834China

Rhododendron is famous for its high ornamental ***,the genus is taxonomically difficult and the relationships within Rhododendron remain *** addition,the origin of key morphological characters with high horticulture value need to be *** problems largely hinder utilization of germplasm *** studies attempted to disentangle the phylogeny of Rhododendron,but only used a few genomic markers and lacked large-scale sampling,resulting in low clade support and contradictory phylogenetic ***,we used restriction-site associated DNA sequencing(RAD-seq)data and morphological traits for 144 species of Rhododendron,representing all subgenera and most sections and subsections of this species-rich genus,to decipher its intricate evolutionary history and reconstruct ancestral *** results revealed high resolutions at subgenera and section levels of Rhododendron based on RAD-seq *** optimal phylogenetic tree and split tree recovered five lineages among ***(cladeⅠ)formed the basal *** and Azaleastrum formed cladeⅡand had sister ***Ⅲincluded all scaly rhododendron ***(cladeⅣ)formed a sister group to ***(cladeⅤ).The results of ancestral state reconstruction showed that Rhododendron ancestor was a deciduous woody plant with terminal inflorescence,ten stamens,leaf blade without scales and broadly funnelform corolla with pink or purple *** study shows significant distinguishability to resolve the evolutionary history of Rhododendron based on high clade support of phylogenetic tree constructed by RAD-seq *** also provides an example to resolve discordant signals in phylogenetic trees and demonstrates the application feasibility of RAD-seq with large amounts of missing data in deciphering intricate evolutionary ***,the reconstructed ancestral state of six important characters provides insights into the inn

关键词： Rhododendron RAD-seq Missing data Quartet sampling(QS) Ancestral state reconstruction

Chiplet晶圆混合键合技术研究现状与发展趋势

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电子工艺技术 2024年第4期45卷 6-11页

作者：王成君张彩云张辉刘红雨薛志平李早阳乔丽东南大学机械工程学院南京211189 中国电子科技集团公司第二研究所太原030024 西安交通大学西安710000

半导体产业对国防安全和国民经济发展意义重大,高端半导体装备也是国外对华技术封锁的重点领域。混合键合技术作为微电子封装和先进制造领域的一种新型连接技术,已经成为实现芯片堆叠、未来3D封装的一项关键技术,是实现高性能、高密度... 详细信息

半导体产业对国防安全和国民经济发展意义重大,高端半导体装备也是国外对华技术封锁的重点领域。混合键合技术作为微电子封装和先进制造领域的一种新型连接技术,已经成为实现芯片堆叠、未来3D封装的一项关键技术,是实现高性能、高密度和低功耗芯片设计的关键技术之一。分析了Chiplet晶圆混合键合技术应用背景,梳理了典型工艺及设备研究的现状,并展望了晶圆混合键合技术发展趋势。

关键词：晶圆键合混合键合异质异构直接键合 Chiplet

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基于面向对象技术的摩擦学设计语言

润滑与密封 2005年第5期30卷 84-89页

作者：王成军西安建筑科技大学陕西西安710055

对摩擦学任务求解过程进行了系统分析,提出了摩擦学设计构件模型,定义了基于该模型的“摩擦学设计语言(TDL)”。该语言主要解决了各类摩擦学任务描述与非同类摩擦学数据与应用共享两个问题。应用表明,该语言可以很好地描述各类摩擦学任... 详细信息

对摩擦学任务求解过程进行了系统分析,提出了摩擦学设计构件模型,定义了基于该模型的“摩擦学设计语言(TDL)”。该语言主要解决了各类摩擦学任务描述与非同类摩擦学数据与应用共享两个问题。应用表明,该语言可以很好地描述各类摩擦学任务,并为各类摩擦学应用提供了统一的数据接口。

关键词：摩擦学系统摩擦学任务摩擦学设计语言(TDL)

经皮椎体后凸成形术联合唑来膦酸治疗骨质疏松性椎体压缩骨折的效果观察

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中国实用医刊 2024年第3期51卷 28-31页

作者：王成军辛红伟李世飞张允帅徐伟鄂正康开封市中心医院骨科开封475000

目的分析经皮椎体后凸成形术(PKP)联合唑来膦酸治疗骨质疏松性椎体压缩骨折(OVCF)的临床效果。方法抽取2020年3月至2022年3月开封市中心医院收治的OVCF患者96例,按随机数字表法分为单一组和联合组,每组48例。单一组予以PKP手术治疗,联... 详细信息

目的分析经皮椎体后凸成形术(PKP)联合唑来膦酸治疗骨质疏松性椎体压缩骨折(OVCF)的临床效果。方法抽取2020年3月至2022年3月开封市中心医院收治的OVCF患者96例,按随机数字表法分为单一组和联合组,每组48例。单一组予以PKP手术治疗,联合组在单一组基础上联合唑来膦酸治疗。比较两组疼痛程度[疼痛数字评分量表(NRS)评分]、功能障碍情况[Oswestry功能障碍指数(ODI)]、伤椎矫正情况(后凸Cobb角、伤椎高度)、骨密度、骨代谢指标[血清骨钙素(SOC)、Ⅰ型前胶原氨基端前肽(PINP)水平]、骨折再发生率及不良反应发生率。结果术后1年,联合组NRS、ODI评分均低于单一组(P均0.05)。结论PKP联合唑来膦酸治疗OVCF,能够减轻患者疼痛程度,提高伤椎矫正效果,改善骨代谢和骨密度情况,减轻功能障碍,降低骨折再发生率,且安全性良好。

关键词：骨折骨质疏松性椎体压缩骨折经皮椎体后凸成形术唑来膦酸

The biogenesis and biological roles of tRNA-derived short RNAs

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Journal of Translational Neuroscience 2017年第1期2卷 1-9页

作者： chengjun wang Jia wang Mingze wang Yike Lu Jizong Zhao Department of Neurosurgery Beijing Tiantan Hospital Capital Medical University 100050 Beijing China China National Clinical Research Center for Neurological Diseases 100050 Beijing China Center of Stroke Beijing Institute for Brain Disorders 100050 Beijing China Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease 100050 Beijing China

In recent years, next-generation sequencing (NGS) technologies targeting the microRNA (miRNA)transcriptome revealed the existence of tRNA-derived short RNAs: tRNA halves (tiRNAs) and tRNA-derived fragments (tRFs). These small RNAs represent a novel type of small non-coding RNAs (sncRNAs), which are heterogeneous in size, nucleotide composition and biogenesis, and have been suggested to be involved in translation, cell proliferation, priming of viral reverse transcriptases, regulation of gene expression, modulation of the DNA damage response, tumor suppression and neurological disorders. Herein, we review the mechanism of their biogenesis and discuss in detail the regulatory roles they play in cell physiology. We also point out that the biological function of tRNA-derived short RNAs will be understood better as research moves forward, and that this knowledge will find its way into clinical application in the near future.

关键词： transfer RNA tRNA halves tRNAderived fragment tRF small non-coding RNA

“事实正义论”:自传(传记)文学的叙事伦理

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外国文学研究 2005年第3期27卷 48-53页

作者：王成军徐州师范大学文学院

在自传(他传)叙事中,本论文主张伦理学的“正义独立于善的康德说”,即不对自传(传记)事实作目的论的解释,一个事实也许隐瞒比坦白更有利于传主或其亲属的生活,给他们带来所谓的“善”。但是这是违反自传(传记)文本真实性原则的错误观念... 详细信息

在自传(他传)叙事中,本论文主张伦理学的“正义独立于善的康德说”,即不对自传(传记)事实作目的论的解释,一个事实也许隐瞒比坦白更有利于传主或其亲属的生活,给他们带来所谓的“善”。但是这是违反自传(传记)文本真实性原则的错误观念,因此,论者在这里郑重提出了“事实正义”理论,以给步履唯艰的自传叙事提供诗学理论支持。当“事实正义”理论由自传中的自我叙述和叙述他者扩展到整个传记文学叙事的时候,其理论的实践意义更是毋容质疑的。

关键词：自传传记叙事伦理正义论真实性原则理论支持文学叙事自我叙述实践意义伦理学目的论 “善” 错误观传主文本诗学