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Aerosol-radiation interaction and its variation in North China within 2015–2019 period under continuous PM_(2.5)improvements

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Journal of Environmental Sciences 2024年第2期136卷 81-94页

作者： Zhe Lv Xiaoqi Wang Wei Wei huahua bai Xiaoyu Liu Guohao Li Shuiyuan Cheng Department of Environmental Science and Engineering Beijing University of TechnologyBeijing 100124China Key Laboratory of Beijing on Regional Air Pollution Control Beijing 100124China Beijing Municipal Research Institute of Eco-Environmental Protection Beijing 100037China Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and Application Beijing 100037China

A study was conducted on aerosol-radiation interactions over six cities in this region within the 2015–2019 ***-Chem simulations on 2017 showed that based on the six-city average,the aerosol load(PM_(2.5)concentrations)of 121.9,49.6,43.3,and 66.3μg/m^(3)in January,April,July,and October,mainly lowered the level of downward shortwave radiation by 38.9,24.0,59.1,and 24.4 W/m~2and reduced the boundary layer height by 79.9,40.8,87.4,and 31.0 m,via scattering and absorbing solar *** sensitivity of meteorological changes to identical aerosol loads varied in the order July>January>October and ***,the cooling and stabilizing effects of aerosols further led to increases in PM_(2.5),by23.0,3.4,4.6,and 7.3μg/m^(3)respectively in the four *** sensitivity of the effect of aerosols on PM_(2.5)was greatest in January rather than in July,contrary to the effect on ***,a negative linear relation was observed between daily BLH reductions and aerosol loads in fall and winter,and between PM_(2.5)increases and aerosol loads in all *** the PM_(2.5)pollution improvements in this region,the aerosol radiative forcing was effectively *** should result in daily BLH increases of 10–24 m in fall and winter,and the estimates in Beijing agreed well with the corresponding results based on AMDAR ***,the reduction in aerosol radiation effects brought about daily PM_(2.5)decreases of 1.6-2.8μg/m^(3),accounting for 7.0%–17.7%in PM_(2.5)improvements.

关键词： Radiative forcing Aerosol PM_(2.5) Boundary layer height(BLH) North China

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Chemical characterization of volatile organic compounds (VOCs) emitted from multiple cooking cuisines and purification efficiency assessments

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Journal of Environmental Sciences 2023年第8期130卷 163-173页

作者： Hanyu Zhang XuejunWang Xianbao Shen Xin Li BoboWu Guohao Li huahua bai Xinyue Cao Xuewei Hao Qi Zhou Zhiliang Yao School of Ecology and Environment Beijing Technology and Business UniversityBeijing 100048China State Environmental Protection Key Laboratory of Food Chain Pollution Control Beijing Technology and Business UniversityBeijing 100048China Beijing Municipal Research Institute of Environmental Protection Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Pollution Control and ApplicationNational Urban Environmental Pollution Control Engineering Research CenterBeijing 100037China

Cooking process can produce abundant volatile organic compounds(VOCs),which are harmful to environment and human ***,we conducted a comprehensive analysis in which VOCs emissions from multiple cuisines have been sampled based on the simulation and acquisition platform,involving concentration characteristics,ozone formation potential(OFP)and purification efficiency *** emissions varied from 1828.5 to 14,355.1μg/m^(3),with the maximumand minimumvalues fromBarbecue and Family cuisine,*** and alcohol had higher contributions to VOCs from Sichuan and Hunan cuisine(64.1%),Family cuisine(66.3%),Shandong cuisine(69.1%)and Cantonese cuisine(69.8%),with the dominant VOCs species of ethanol,isobutane and *** comparison,alcohols(79.5%)were abundant for Huaiyang cuisine,while alkanes(19.7%),alkenes(35.9%)and haloalkanes(22.9%)accounted for higher proportions from ***,carbon tetrachloride,n-hexylene and 1-butene were the most abundant VOCs species for Barbecue,ranging from 8.8%to 14.6%.The highest OFP occurred in *** sensitive species of OFP for Huaiyang cuisine were alcohols,while other cuisines were *** efficiency assessments shed light on the removal differences of individual and synergistic control *** emissions exhibited a strong dependence on the photocatalytic oxidation,with the removal efficiencies of 29.0%–54.4%.However,the high voltage electrostatic,wet purification and mechanical separation techniques played a mediocre or even counterproductive role in the VOCs reduction,meanwhile collaborative control technologies could not significantly improve the removal *** results identifiedmore effective control technologies,which were conductive to alleviating air pollution from cooking emissions.

关键词： Cooking emissions Volatile organic compounds(VOCs) VOCs categories Ozone formation potential(OFP) Purification efficiency

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太湖典型植物氨基酸组成特征及其对水环境的影响

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湖泊科学 2015年第1期27卷 119-127页

作者：刘丹白画画朱元荣林樱吴丰昌河海大学环境学院南京210098 中国环境科学研究院环境基准与风险评估国家重点实验室北京100012 北京市环境保护科学研究院北京100037 环境保护部环境工程评估中心北京100012

在太湖两个不同湖区（东太湖和贡湖）各选择了8种不同类型的典型水生植物和1种陆生植物全株作为研究对象,采用邻苯二甲醛柱前衍生-反相高效液相色谱法对其中15种氨基酸的组成特征进行了分析,并探讨了植物来源氨基酸对湖泊水环境的影响.... 详细信息

在太湖两个不同湖区（东太湖和贡湖）各选择了8种不同类型的典型水生植物和1种陆生植物全株作为研究对象,采用邻苯二甲醛柱前衍生-反相高效液相色谱法对其中15种氨基酸的组成特征进行了分析,并探讨了植物来源氨基酸对湖泊水环境的影响.结果表明东太湖区域植物体中总可水解氨基酸（THAAs）的平均含量为861.6±182.96μmol/g,贡湖区域植物体中THAAs平均含量为700.0±232.3μmol/g;不同类型植物体中THAAs的含量大小依次为：沉水植物、浮叶植物〉挺水植物〉陆生植物;其中天冬氨酸、谷氨酸、精氨酸、丙氨酸和赖氨酸是THAAs的主要组成部分,这5种氨基酸的摩尔浓度占氨基酸总量的50%以上;太湖植物中THAAs所含的氮元素对植物总氮的贡献在30.7%~94.7%之间,是植物体氮元素的主要组分,也是内源氮输入的主要来源.东太湖区域采集的植物样品中各氨基酸的浓度比例与东太湖水体氨基酸组成差异较大,但与沉积物氨基酸组成较吻合,表明东太湖植物来源的有机质和氨基酸是沉积物中有机质和氨基酸的重要来源.

关键词：太湖典型植物氨基酸

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北京市餐饮业大气污染管理措施研究

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环境科学与管理 2020年第10期45卷 1-6页

作者：陈雪孙成一白画画何万清李国傲北京市环境保护科学研究院国家城市环境污染控制工程技术研究中心城市大气挥发性有机物污染防治技术与应用北京市重点实验室北京100037

餐饮业大气污染物排放是影响北京等特大型城市环境空气质量的重要因素之一,促进餐饮业大气污染物的减排是改善城市空气质量的重要举措。文章分析了北京市餐饮业大气污染现状,为环境管理提出了可行性建议(1)根据各地区的规划和发展方向,... 详细信息

餐饮业大气污染物排放是影响北京等特大型城市环境空气质量的重要因素之一,促进餐饮业大气污染物的减排是改善城市空气质量的重要举措。文章分析了北京市餐饮业大气污染现状,为环境管理提出了可行性建议(1)根据各地区的规划和发展方向,在不同区域内合理选址新建、改建、扩建餐饮服务企业;(2)修订国家标准,制定各地区的地方标准;(3)使用现场监测方法,加快执法速度和提高执法效率;(4)优化各级政府与第三方企业的联控在线监测系统平台;(5)研发餐饮业大气污染物的净化技术和设备,全面提高净化效率,减少污染物排放总量。

关键词：餐饮业大气污染油烟颗粒物挥发性有机物管理措施

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HPLC combined with chemometrics for quality control of Huamoyan Granules or Capsules

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Chinese Herbal Medicines 2024年第3期16卷 449-456页

作者： Minhang Dou Jiayi Huang Mimi Yu huahua Li Yang Song Ziwei Peng Shouying Du Jie bai School of Chinese Materia Medica Beijing University of Chinese MedicineBeijing 100029China Beijing Institute for Drug Control NMPA Key Laboratory for Quality Evaluation of Traditional Chinese Medicine(Traditional Chinese Patent Medicine)Beijing Key Laboratory of Analysis and Evaluation on Chinese MedicineBeijing 102206China

Objective:Huamaoyan Granules(HMYG)and Huamaoyan Capsules(HMYC)are Chinese patent medicines with different dosage forms of the same *** to the different preparation process,the chemical composition of these Chinese patent medicines varies greatly among different forms,but there were few studies on the difference comparison and quality control of *** order to improve the effectiveness and safety in its clinical application,an idea combining high performance liquid chromatography(HPLC)and chemometrics was put forward to study the quality control of Chinese patent medicines in different dosage forms of the same ***:The differential markers of HMYG and HMYC were explored based on HPLC fingerprint and chemometrics including orthogonal projections to latent structures-discriminant analysis(OPLS-DA),principal component analysis(PCA),and hierarchical cluster analysis(HCA).Finally,the quantitative analysis method of related components was established by ***:A quality control method for HMYG and HMYC was ***,the chemical components of HMYG and HMYC were systematically analyzed by HPLC *** exploration showed that there were 20 characteristic peaks and 57 common ***,the potential differential markers between HMYG and HMYC were explored by chemometrics,and the differential markers were screened after intersection with the 20 characteristic ***,HPLC quantitative analysis methods for nine components were established,including seven differential markers(neochlorogenic acid,protocatechualdehyde,chlorogenic acid,cryptochlorogenic acid,caffeic acid,rosmarinic acid and salvianolic acid A).The results of HPLC quantitative analysis showed that the contents of eight components in HMYG and HMYC samples were significantly *** to the above results,the differential markers between HMYG and HMYC screened based on HPLC fingerprint and chemometrics can effectively characterize the differ

关键词： chemometrics Chinese patent medicine high performance liquid chromatography fingerprint Huamoyan Granules/Capsules quality control synovitis

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Tectonic features,genetic mechanisms and basin evolution of the eastern Doseo Basin,Chad

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Petroleum Exploration and Development 2023年第5期50卷 1151-1166页

作者： GAO huahua DU Yebo WANG Lin GAO Simin HU Jie bai Jianfeng MA Hong WANG Yuhua ZHANG Xinshun LIU Hao China National Oil and Gas Exploration and Development Corporation Beijing 100034China Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China Exploration and Development Research Institute of PetroChina Yumen Oilfield Company Jiuquan 735019China Research Institute of Bureau of Geophysical Prospecting Inc. CNPCZhuozhou 072751China

The features of the unconformity,fault and tectonic inversion in the eastern Doseo Basin,Chad,were analyzed,and the genetic mechanisms and basin evolution were discussed using seismic and drilling *** following results are ***,four stratigraphic unconformities,***(Tg),Mangara Group(T10),lower Upper Cretaceous(T5)and Cretaceous(T4),four faulting stages,*** extensional faults,Aptian–Coniacian strike-slip faults,Campanian strike-slip faults,and Eocene strike-slip faults,and two tectonic inversions,*** and end of Cretaceous,were developed in the Doseo ***,the Doseo Basin was an early failed intracontinental passive rift basin transformed by the strike-slip movement and tectonic *** initial rifting between the African and South American plates induced the nearly N-S stretching of the Doseo Basin,giving rise to the formation of the embryonic Doseo rift *** nearly E-W strike-slip movement of Borogop(F1)in the western section of the Central African Shear Zone resulted in the gradual cease of the near north-south rifting and long-term strike-slip transformation,forming a dextral transtension fault system with inherited activity but gradually weakened in intensity(interrupted by two tectonic inversions).This fault system was composed of the main shear(F1),R-type shear(F2-F3)and P-type shear(F4-F5)faults,with the strike-slip associated faults as *** strike-slip movements of F1 in Cretaceous and Eocene were controlled by the dextral shear opening of the equatorial south Atlantic and rapid expanding of the Indian Ocean,*** combined function of the strike-slip movement of F1 and the convergence between Africa and Eurasia made the Doseo Basin underwent the Santonian dextral transpressional inversion characterized by intensive folding deformation leading to the echelon NE-SW and NNE-SSW nose-shaped uplifts and unconformity(T5)on high parts of the *** convergence between Africa and Eu

关键词： Doseo Basin Cretaceous unconformity strike-slip fault tectonic inversion genetic mechanism basin evolution

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认知行为干预在晚期肝癌介入治疗患者中的应用效果

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癌症进展 2020年第23期18卷 2468-2471页

作者：李花花白黎马冰郑州大学第一附属医院感染科郑州450052

目的探讨认知行为干预在晚期肝癌介入治疗患者中的应用效果。方法采用随机数字表法将108例晚期肝癌患者分为观察组(n=54)和对照组(n=54),两组患者均接受介入治疗,对照组患者给予常规介入治疗护理,观察组患者在对照组的基础上给予认知行... 详细信息

目的探讨认知行为干预在晚期肝癌介入治疗患者中的应用效果。方法采用随机数字表法将108例晚期肝癌患者分为观察组(n=54)和对照组(n=54),两组患者均接受介入治疗,对照组患者给予常规介入治疗护理,观察组患者在对照组的基础上给予认知行为干预。比较治疗前后两组患者的焦虑自评量表(S A S)评分、抑郁自评量表(SDS)评分、肝癌患者生存质量测定量表2.0版(QOL-LC V2.0)评分、Herth希望量表(HHI)评分及血清血管内皮生长因子(VEGF)水平。结果治疗后,观察组患者的SAS和SDS评分及血清VEGF水平均低于对照组,差异均有统计学意义(P <0.05);观察组患者的QOL-LC V2.0评分和HHI评分均高于对照组,差异均有统计学意义(P <0.05)。结论认知行为干预在晚期肝癌介入治疗患者中具有较好的应用效果,可改善患者的心理状态和生活质量,提高患者的希望水平。

关键词：认知行为干预晚期肝癌应用效果心理状态生活质量

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技术融资平台运作机理研究——以软件中小企业为例

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创新科技 2016年第2期16卷 29-30页

作者：白江涛吴华华同济大学经管学院上海200092 上海财经大学统计与管理学院上海200433

技术融资实践在我国仍处于初级阶段,以软件中小企业为代表的高科技初创企业亟须资金支持研发创新并实现技术转型,本文设计软件技术融资平台并阐述其运作机理,尝试探索技术融资新路径,服务于高科技中小企业孵化成长。

关键词：中小企业技术融资平台运作机理

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RPL5在泛癌中的预后价值及免疫作用的生物信息学分析

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延安大学学报（医学科学版） 2024年第1期22卷 6-14页

作者：杨娜白静张华华韩继明延安大学医学研究实验中心陕西延安716000

目的核糖体蛋白L5(Ribosomal protein L5,RPL5)是核糖体蛋白家族成员。然而,RPL5在肿瘤发生、进展和免疫治疗中的作用尚未完全阐明。方法通过多种数据库分析RPL5在泛癌中的表达,及其与肿瘤患者的预后、免疫细胞浸润、免疫调节基因、肿... 详细信息

目的核糖体蛋白L5(Ribosomal protein L5,RPL5)是核糖体蛋白家族成员。然而,RPL5在肿瘤发生、进展和免疫治疗中的作用尚未完全阐明。方法通过多种数据库分析RPL5在泛癌中的表达,及其与肿瘤患者的预后、免疫细胞浸润、免疫调节基因、肿瘤突变负荷(tumor mutational burden,TMB)及微卫星不稳定性(microsatellite instability,MSI)的相关性。结果与正常组织相比,RPL5在结肠癌、多形性胶质细胞瘤、肾透明细胞癌、肺腺癌、肺鳞癌、肝细胞肝癌中mRNA表达和蛋白质水平均升高,且RPL5是肾上腺皮质癌、肾乳头状细胞癌和肝细胞肝癌的预后危险因素。在某些癌症中,RPL5表达与免疫细胞浸润、免疫调节基因、TMB及MSI呈负相关。结论RPL5可作为癌症的预后生物标志物和潜在的免疫治疗靶点。

关键词：核糖体蛋白L5 泛癌预后免疫微环境

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天宫空间站在轨货物进出舱功能的设计与验证

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上海航天（中英文） 2023年第5期40卷 24-29页

作者：孟瑶柏合民韩艳杨旋季逸民刘婳婳张元上海宇航系统工程研究所上海201109 中国航天员科研训练中心北京100094

为增强空间站对舱外载荷的支持能力,提升舱内外货物的进出效率,减少航天员出舱次数,降低航天员出舱风险,空间站梦天实验舱设计了货物自动进出舱功能。本文从货物进出舱功能方案出发,介绍了包括货物转运功能、外舱门功能、泄压、复压、... 详细信息

为增强空间站对舱外载荷的支持能力,提升舱内外货物的进出效率,减少航天员出舱次数,降低航天员出舱风险,空间站梦天实验舱设计了货物自动进出舱功能。本文从货物进出舱功能方案出发,介绍了包括货物转运功能、外舱门功能、泄压、复压、气体复用功能在内的关键子功能的地面试验验证及在轨试验验证工作。地面及在轨试验验证结果对比表明:货物进出舱方案设计合理,地面验证结果和在轨数据一致性好,产品性能稳定,有效地提高了空间站货物进出舱效率。

关键词：天宫空间站货物进出舱气闸舱设计验证

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