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Chemical signature and fractionation of trace elements in fine particles from anthropogenic and natural sources

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Journal of Environmental Sciences 2022年第4期34卷 365-375页

作者： rujin huang Wei Yuan Ting Wang Wenjuan Cao Ying Wang Chunshui Lin Lu Yang Jie Guo Haiyan Ni Feng Wu State Key Laboratory of Loess and Quaternary Geology(SKLLQG) Center for Excellence in Quaternary Science and Global Changeand Key Laboratory of Aerosol Chemistry and PhysicsInstitute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China

The health effects of trace metal elements in atmospheric fine particulate matter(PM_(2.5))are widely recognized,however,the emission factor profiles and chemical fractionation of metal elements in different sources were poorly *** this study,sixteen metal elements,including Cd,Pb,V,Zn,Ba,Sb,As,Fe,Sr,Cr,Rb,Co,Mn,Cu,Ni and Sn frombiomass burning,bituminite and anthracite combustion,as well as dust,were *** results showdifferent emission sourceswere associated with distinct emission profiles,holding important implications for source apportionment of ambient particulate ***,Fe was the dominant metal species(28-1922 mg/kg)for all samples,and was followed by different metals for different *** dust,Mn(39.9 mg/kg_(dust))had the second-highest emission factor,while for biomass burning,itwas Cr and Ba(7.5 and 7.4mg/kg_(biomass),respectively).For bituminous coal combustion,the emission factor of Zn and Ba was 6.2 and 6.0 mg/kg_(bituminous),respectively,while for anthracite combustion the corresponding emission factor was 5.6 and 4.3 mg/kg_(anthracite),***,chemical fractionation(i.e.,the exchangeable,reducible fraction,oxidizable,and residual fraction)and the bioavailability index(BI)values of the metal elements from different sources were further investigated to reveal the link between different emission sources and the potential health *** findings from this study hold important implications for source apportionment and sourcespecific particulate metal-associated health effects.

关键词： Metal elements Sources Emission profiles Chemical fractionation

A long non-coding RNA LncSync regulates mouse cardiomyocyte homeostasis and cardiac hypertrophy through coordination of miRNA actions

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Protein & Cell 2023年第2期14卷 153-157页

作者： rujin huang Jinyang Liu Xi Chen Ying Zhi Shuangyuan Ding Jia Ming Yulin Li Yangming Wang Jie Na Center for Stem Cell Biology and Regenerative Medicine School of MedicineTsinghua UniversityBeijing 100084China School of Life Sciences Tsinghua UniversityBeijing 100084China Capital Medical University Beijing 100084China Beijing Key Laboratory of Cardiometabolic Molecular Medicine Peking-Tsinghua Center for Life SciencesInstitute of Molecular MedicinePeking UniversityBeijing 100871China

Dear Editor,Maintenance of cardiomyocyte(CM)homeostasis is essential for normal heart ***-term imbalance in heart homeostasis could elicit irreversible adaptive change in cell structure and function and tissue architecture,exemplified as cardiac hyper-trophy and fibrosis,and eventually develop into heart failure(Shiojima et al.,2005).Therefore,identifying new genes and path-ways regulating CM homeostasis may help better understand the cause of cardiac hypertrophy.

关键词： homeostasis cardiac hypertrophy

Development of source profiles and their application in source apportionment of PM2.5 in Xiamen, China

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Frontiers of Environmental Science & Engineering 2016年第5期10卷 177-189页

作者： Ningning Zhang Mazhan Zhuang Jie Tian Pengshan Tian Jieru Zhang Qiyuan Wang Yaqing Zhou rujin huang Chongshu Zhu Xuemin Zhang Junji Cao Key Laboratory of Aerosol Chemistry and Physics Institute of Earth Environment Chinese Academy of Sciences Xi'an 710061 China Xiamen Environmental Monitoring Central Station Xiamen 361012 China IER Environmental Protection Engineering Technique Co. Ltd. Shenzhen 518055 China Laboratory of Atmospheric Chemistry Paul Scherrer Institute (PSI) 5232 Villigen Switzerland Centre for Atmospheric and Environmental Studies Xiamen Huaxia University Xiamen 361024 China Institute of Global Environmental Change Xi'an Jiaotong University Xi'an 710049 China

Ambient PM2.5 samples were collected at four sites in Xiamen, including Gulangyu （GLY）. Hongwen （HW）, Huli （HL） and Jimei （JM） during January, April, July and October 2013. Local source samples were obtained from coal burning power plants, industries, motor vehicles, biomass burning, fugitive dust, and sea salt for the source apportionment studies. The highest value of PM2.5 mass concentration and species related to human activities （SO42- , NO3 , Pb, Ni, V, Cu, Cd, organic carbon （OC） andelemental carbon （EC）） were found in the ambient-samples from HL, and t-he highest and lowest loadings of PM2.5 and its components occurred in winter and summer, respectively. The reconstructed mass balance indicated that ambient PM2.5 consisted of 24% OM （organic matter）, 23% sulfate, 14% nitrate, 9% ammonium, 9% geological material, 6% sea salt, 5% EC and 10% others. For the source profiles, the dominant components were OC for coal burning, motor vehicle, biomass burning and sea salt; SO42 for industry; and crustal elements for fugitive dust. Source contributions were calculatedusing a chemical mass＇balance （CMB） model basedon ambient PM2.5 concentrations and the source profiles. GLY was characterized by high contributions from secondary sulfate and cooking, while HL and JM were most strongly affected by motor vehicle emissions, and biomass burning and fugitivedust, respectively. The CMB results-indicated that PM2.5 from Xiamen is composed of 27.4% secondary inorganic components, 20.8% motor vehicle emissions, 11.7% fugitive dust, 9.9% sea salt, 9.3% coal burning, 5.0% biomass burning, 3.1% industry and 6.8% others.

关键词： PM2.5 Source profile Source apportionment CMB Xiamen

Dgcr8 deletion in the primitive heart uncovered novel microRNA regulating the balance of cardiac-vascular gene program

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Protein & Cell 2019年第5期10卷 327-346页

作者： Xi Chen Lin Wang rujin huang Hui Qiu Peizhe Wang Daren Wu Yonglin Zhu Jia Ming Yangming Wang Jianbin Wang Jie Na Center for Stem Cell Biology and Regenerative Medicine School of MedicineTsinghua UniversityBeijing 100084China Beijing Key Laboratory of Cardiometabolic Molecular Medicine Institute of Molecular MedicinePeking UniversityBeijing 100871China School of Life Sciences Tsinghua UniversityBeijing 100084China

Primitive mammalian heart transforms from a single tube to a four-chambered muscular organ during a short developmental *** found that knocking out global microRNA by deleting Dgcr8 microprocessor in Mespl cardiovascular progenitor cells lead to the formation of extremely dilated and enlarged heart due to defective cardiomyocyte(CM)*** analysis revealed unusual upregulation of vascular gene expression in Dgcr8 cKO *** cell RNA sequencing study further confirmed the increase of angiogenesis genes in single Dgcr8 cKO *** also performed global microRNA profiling of E9.5 heart for the first time,and identified that miR-541 was transiently highly expressed in E9.5 ***,introducing miR-541 back into microRNA-free CMs partially rescued their defects,downregulated angiogenesis genes and significantly upregulated cardiac ***,miR-541 can target Ctgf and inhibit endothelial *** results suggest that micro-RNAs are required to suppress abnormal angiogenesis gene program to maintain CM differentiation.

关键词： microRNA Dgcr8 Cardiovascular progenitor cells miRNA-541 Single cell RNA sequencing

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论和合管理的企业文化建设

管理学报 2007年第6期4卷 712-718页

作者：黄如金中国社会科学院工业经济研究所

市场经济的新发展决定了和合文化开始在企业文化建设中越来越具有重要意义。企业和合文化的内容是一个具有历史延续性而又同时具有创新性的复合系统,企业和合文化建设就是对于这一复合系统所蕴涵的企业价值观、经营理念、行为规范以及... 详细信息

市场经济的新发展决定了和合文化开始在企业文化建设中越来越具有重要意义。企业和合文化的内容是一个具有历史延续性而又同时具有创新性的复合系统,企业和合文化建设就是对于这一复合系统所蕴涵的企业价值观、经营理念、行为规范以及企业精神与企业形象的实现过程。

关键词：和合管理和合文化企业文化力持续发展

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和合管理:探索具有中国特色的管理理论

管理学报 2007年第2期4卷 135-140,143页

作者：黄如金中国社会科学院工业经济研究所

在管理学对于经济社会发展的重要程度越来越大的今天,创新发展有中国特色的管理学便成为具有重大历史意义和现实意义的课题。“和合管理”就是立足于中华民族5000年的历史文化扬弃,以中国和合哲学思想为基本指导原则,以中国传统的和合... 详细信息

在管理学对于经济社会发展的重要程度越来越大的今天,创新发展有中国特色的管理学便成为具有重大历史意义和现实意义的课题。“和合管理”就是立足于中华民族5000年的历史文化扬弃,以中国和合哲学思想为基本指导原则,以中国传统的和合管理为历史借鉴,贯彻“古为今用”和“洋为中用”的原则,结合今天中国改革开放和市场经济深入发展的实际,同时吸收西方管理理论和管理实践中的有益内容,从而探索具有中国特色的管理理论。

关键词：和合管理管理理论理论架构

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和合发展战略与和合发展力

管理学报 2007年第5期4卷 556-565页

作者：黄如金中国社会科学院工业经济研究所

根据市场经济的新发展,提出了和合发展战略的新考量。与和合发展战略紧密联系的和合发展力新范畴因而具有了现实意义。和合发展力范畴的提出,是遵循哲学辩证法的认识以及博弈论等科学研究方法分析的结果,是基于市场经济环境与市场经济... 详细信息

根据市场经济的新发展,提出了和合发展战略的新考量。与和合发展战略紧密联系的和合发展力新范畴因而具有了现实意义。和合发展力范畴的提出,是遵循哲学辩证法的认识以及博弈论等科学研究方法分析的结果,是基于市场经济环境与市场经济条件的新变化研究的结论。和合发展力不仅是市场经济新时期企业获利能力的体现与关键内容,而且对于和平发展与和谐社会的目标也是至关重要的。

关键词：管理创新和合管理和合发展战略和合发展力

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和合管理的真谛:和气生财,合作制胜

管理学报 2007年第3期4卷 258-265页

作者：黄如金中国社会科学院工业经济研究所

所谓和合管理,就是以中国古代的和合哲学思想为根本指导的管理,它是批判地继承和合文化中的“和”理念,以史为鉴,结合今天中国改革开放和市场经济深入发展的实际,通过兼收并蓄中外管理思想和管理实践之精华,从而创新发展的具有中国特色... 详细信息

所谓和合管理,就是以中国古代的和合哲学思想为根本指导的管理,它是批判地继承和合文化中的“和”理念,以史为鉴,结合今天中国改革开放和市场经济深入发展的实际,通过兼收并蓄中外管理思想和管理实践之精华,从而创新发展的具有中国特色的管理科学。在基于历史和现实的分析中揭示和合管理的内涵和真谛——和气生财,合作制胜。

关键词：管理创新和合管理和气生财合作制胜

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基于遗传算法的三相四芯电缆相电流重构方法

仪器仪表学报 2024年第4期45卷 307-316页

作者：朱俊宇曾春平索春光张文斌黄汝金昆明理工大学理学院昆明650500 昆明理工大学机电工程学院昆明650500

目前多芯电缆电流重构方法受限于电缆规格或传感器阵列与线芯需按特定规则摆放导致其在实际工程应用中较为困难。本文提出基于遗传算法进行三相四芯电力电缆线芯分布相关量的求解,进而得到任意线芯分布半径、任意线芯与传感器阵列角度... 详细信息

目前多芯电缆电流重构方法受限于电缆规格或传感器阵列与线芯需按特定规则摆放导致其在实际工程应用中较为困难。本文提出基于遗传算法进行三相四芯电力电缆线芯分布相关量的求解,进而得到任意线芯分布半径、任意线芯与传感器阵列角度时磁传感器阵列各单元的输出量与各线芯电流之间的耦合系数矩阵的方法,用于重构四芯电缆中各线芯电流。通过仿真验证了算法的可行性。为了能有效降低由于干扰等因素造成的误差,提出了一种先验求解模型以提高解的质量。随后进行了传感单元阵列电路拓扑的设计,使用设计的原型在搭建的实验平台进行了测试,实验结果表明,在三相平衡情况下,测量的三相电流最大误差为2.42%,最大相位误差为2.77°,在三相不平衡情况下,测量的三相电流最大误差为2.52%,最大相位误差为4.17°。实验结果验证了方法的可行性与有效性。

关键词：四芯电缆电流重构遗传算法非接触