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Southeastern extension of the Red River fault zone (RRFZ) and its tectonic evolution significance in western South china Sea

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Science china Earth sciences 2006年第8期49卷 839-850页

作者： LIU Baoming1,2,3. XIA Bin1, LI Xuxuan1,3. zhang Minqiang1,3. niu Binhua2, ZHONG Lifeng1, jiN Qinghuan1,4 & ji Shaocheng1,5 1. Key Laboratory of Marginal Sea Geology and Resources, chinese Academy of sciences,Guangzhou 510640, china 2. china university of Geosciences (beijing), beijing 100083. china 3. Research Center of Science & Technology Department, CNOOC, beijing 100027, china 4. Guangzhou Marine Geological Survey, Ministry of Land & Resources, Guangzhou 510075, china 5. Ecole Polytechnique Montreal, H3.3.7, Canada 1. Key Laboratory of Marginal Sea Geology and Resources Chinese Academy of Sciences Guangzhou 510640 China 2. china university of Geosciences ({3.) Beijing 100083 China 3. Research Center of Science & Technology Department CNOOC Beijing 100027 China 4. Guangzhou Marine Geological Survey Ministry of Land & Resources Guangzhou 510075 China 5. Ecole Polytechnique Montreal H3C3A7 Canada

Recent geophysical surveys and basin modeling suggest that the No.1 fault in the Ying- gehai basin (YGHB) is the seaward elongation of the Red River fault zone (RRFZ) in the South china Sea (SCS). The RRFZ, which separates the South china and Indochina block, extends first along the Yuedong fault, offshore of Vietnam, and then continues southward and breaks off into two branches: the Lupar fault and the Tin{3.a fault. The southern extension of the Lupar fault dies out beneath the NW Borneo while the Tin{3.a fault extends southeast and reaches the Brunei-Sabah area. According to the gravity and geomagnetic data, and the tectonic evolution of the basins, there are different evolution histories between the Wan’an basin (WAB) and the basins in the Nansha block. The Tin{3.a fault may be the boundary between the Balingian block and the Nansha block. Hence, the line linking the Yue- dong fault and the Tin{3.a fault, which both are continental margin faults and strike-slip ones in the geological evolution histories, constitute the boundary between the Indochina and Nansha block. The Lupar fault, in contrast, is an intraplate fault within the Indochina block. The results provide new hints for reconstructing the tectonic evolution history of the RRFZ and the opening of the SCS, and also a framework for hydrocarbon prospecting in the region.

关键词： Red River fault zone, tectonic evolution, fault, extension, western South china Sea.

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自激波动注水振荡波传播规律实验

水动力学研究与进展（A辑） 2004年第3期19卷 370-374页

作者：李根生黄中伟张德斌牛继磊张武威高国强石油大学北京昌平102249 石油大学华东山东东营257061 胜利油田山东东营257000

　本文提出了自激波动注水新思想,目的在于改进油田注水井中传统的注水方式,降低注水压力、延长修井周期。首先介绍了自振空化喷嘴工作原理。其次,在地面实验台架上测试了喷嘴出口射流的频谱特性、不同频率下压力振荡沿套管径向和轴向... 详细信息

　本文提出了自激波动注水新思想,目的在于改进油田注水井中传统的注水方式,降低注水压力、延长修井周期。首先介绍了自振空化喷嘴工作原理。其次,在地面实验台架上测试了喷嘴出口射流的频谱特性、不同频率下压力振荡沿套管径向和轴向的传播及衰减规律。实验发现,套管内自振空化射流频谱具有宽频带噪声特性,空化射流产生的振荡波能量主要集中在20KHz以内的频率段,在该频率段内,5KHz以内的振荡信号沿套管轴向衰减较慢,之后衰减加快;流体振荡沿套管径向传播距离达100cm以上,沿轴向传播距离可达600cm以上。

关键词：自激波动注水射流空化传播

2022年珠三角4个城市PM_(2.5)污染中金属元素吸入途径的健康风险评估

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上海预防医学 2024年第4期36卷 393-398页

作者：牛计伟黄素丽李晓恒张振季佳佳刘宁中国疾病预防控制中心现场流行病学培训项目北京100050 深圳市疾病预防控制中心广东深圳518055 广东省疾病预防控制中心广东广州511430

【目的】了解新型冠状病毒感染疫情下广东省珠三角城市空气中细颗粒物(PM_(2.5))污染特征及PM_(2.5)中金属元素吸入途径的健康风险。【方法】2022年在广州、深圳、佛山及珠海市等4个市10个区设置10个PM_(2.5)监测点,每月连续7 d采集空... 详细信息

【目的】了解新型冠状病毒感染疫情下广东省珠三角城市空气中细颗粒物(PM_(2.5))污染特征及PM_(2.5)中金属元素吸入途径的健康风险。【方法】2022年在广州、深圳、佛山及珠海市等4个市10个区设置10个PM_(2.5)监测点,每月连续7 d采集空气样品进行PM_(2.5)质量浓度及PM_(2.5)中12种金属元素成分分析。通过经典“四步法”对空气中PM_(2.5)金属元素与健康影响的致癌风险(CR)、慢性非致癌风险的评估。在CR评估中结合金属元素年龄敏感特征,引入年龄敏感因子,分析空气污染对人群健康影响。【结果】共采集样品818份,珠三角4个城市PM_(2.5)年均浓度(最小值~最大值,标准差)为3..17(1.00~166.00,21.06)μg·m^(-3.,低于GB 3.95—2012《环境空气质量标准》二级浓度限值。4个城市PM_(2.5)浓度差异有统计学意义(P13.70(4.00~3..00,5.93.μg·m^(-3.,最高是1月57.73.14.00~146.00,27.96)μg·m^(-3.。日平均浓度超过二级浓度限值的共29 d,主要分布在1、11月。PM_(2.5)中元素的年均质量浓度铝(Al)>锰(Mn)>铅(Pb)>砷(As)>镍(Ni)>铬(Cr)>硒(Se)>锑(Sb)>镉(Cd)>铊(Tl)>铍(Be)>汞(Hg)。AS、Mn具有人群慢性非致癌风险,Cr、As、Cd、Be、Ni存在人群CR。【结论】珠三角4个城市PM_(2.5)污染水平低且有差异性,临海城市低于非临海城市,全年呈先降后升的特征。4个城市PM_(2.5)中金属元素除Be、Ni外质量浓度排序基本相同。PM_(2.5)中As、Mn显示有一定程度的慢性非致癌风险,As、Cr、Cd、Ni、Be存在一定程度的CR。4个城市均须采取有效干预措施,继续加强空气中Cr、As、Cd、Mn的污染管控和健康防护,控制空气污染导致的健康负担。

关键词：金属元素 PM_(2.5) 空气污染健康风险吸入

淮河流域细颗粒物化学组分时空特征及驱动因素分析

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环境科学 2024年第10期45卷 5650-5660页

作者：刘晓咏牛继强刘航张一丹颜俊闫军辉苏方成信阳师范大学地理科学学院信阳464000 信阳师范大学河南省水土环境污染协同防治重点实验室信阳464000 中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室北京100029 郑州大学化学学院郑州450001

基于淮河流域3.个城市2015~2021年的细颗粒物(PM_(2.5))及其组分数据集,分析了污染物的时空分布格局,利用随机森林模型考察了气象因子对PM_(2.5)浓度的影响.采用KZ(Kolmogorov-Zurbenko)滤波和多元线性回归(MLR)对PM_(2.5)、硫酸盐(SO_(... 详细信息

基于淮河流域3.个城市2015~2021年的细颗粒物(PM_(2.5))及其组分数据集,分析了污染物的时空分布格局,利用随机森林模型考察了气象因子对PM_(2.5)浓度的影响.采用KZ(Kolmogorov-Zurbenko)滤波和多元线性回归(MLR)对PM_(2.5)、硫酸盐(SO_(4)^(2-))、硝酸盐(NO_(3.^(-))、铵盐(NH_(4)^(+))、有机物(OM)和黑炭(BC)的原始序列进行气象调整,定量气象条件的影响.结果表明,2015~2021年淮河流域PM_(2.5)、SO_(4)^(2−)、NO_(3.^(-)、NH_(4)^(+)、OM和BC的变化速率分别为-4.71、-0.99、-1.05、-0.77、-1.01和-0.19μg·(m^(3.·a)^(-1).PM_(2.5)及其组分浓度高值集中在淮河流域中部和西部区域,而沿海及南部城市的浓度较低.PM_(2.5)短期、季节和长期分量对3.个城市PM_(2.5)原始序列总方差的贡献率分别为51.6%、3..9%和7.0%,沿海城市更受短期分量影响.2015~2018年气象条件不利于淮河流域PM_(2.5)浓度的降低,2019~2021年气象条件有利于PM_(2.5)浓度的降低.2015~2021年气象条件对淮河流域PM_(2.5)、SO_(4)^(2-)、NO_(3.^(-)、NH_(4)^(+)、OM和BC长期分量下降的贡献率分别为28.3.、29.1%、3..0%、29.3.、27.8%和28.6%.气象条件对安徽、山东、江苏和河南省淮河流域城市PM_(2.5)长期分量降低的贡献率分别为43.4%、25.6%、25.5%和20.6%.随着淮河流域PM_(2.5)浓度降低,硫氧化率(SOR)明显上升,而氮氧化率(NOR)变化不大.

关键词： PM_(2.5) 化学组分 KZ滤波时空分布气象影响

近邻宜居行星巡天计划:利用空间天体测量法寻找下一个“地球”

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空间科学学报 2024年第2期44卷 193-214页

作者：季江徽李海涛张俊波李东方亮王素邓雷陈果李飞董瑶李保权高晓东鲜浩中国科学院紫金山天文台南京210023 中国科学技术大学天文与空间科学学院合肥230026 中国科学院行星科学重点实验室南京210023 中国科学院国家空间科学中心北京100190 中国科学院大学北京100049 中国科学院光电技术研究所成都610209 自适应光学全国重点实验室成都610209 中国科学院微小卫星创新研究院上海201306

近邻宜居行星巡天计划(Closeby Habitable Exoplanet Survey,CHES)采用空间微角秒级别的高精度天体测量技术,普查太阳系近邻(10 pc内)约100颗FGK等类型恒星,探测宜居带类地行星或超级地球;详细普查宜居行星的数目、真实质量和三维轨道... 详细信息

近邻宜居行星巡天计划(Closeby Habitable Exoplanet Survey,CHES)采用空间微角秒级别的高精度天体测量技术,普查太阳系近邻(10 pc内)约100颗FGK等类型恒星,探测宜居带类地行星或超级地球;详细普查宜居行星的数目、真实质量和三维轨道等信息,这将是国际上首次近邻宜居带类地行星的空间探测任务.CHES的有效载荷是一台口径为1.2 m,视场为0.44°×0.44°,焦距为3. m的高像质、低畸变、高稳定光学望远镜,采用同轴三反TMA光学成像系统.为实现宜居带类地行星探测,CHES任务中的测量精度为1μas,是目前国际测量精度最高的空间探测项目.在空间科学先导专项背景型号项目的支持下,CHES团队深入凝练和论证科学目标,成功突破了三项关键技术难题:实现了畸变大视场高像质空间望远镜光学系统技术的重要突破;突破了10–5 pixel级别星间距测量技术;实现了卫星系统高稳定度姿态控制精度及热控精度的创新.CHES预计发现50颗类地行星,引领中国空间科学探测技术的跨越式发展.

关键词：高精度天体测量法系外行星近邻宜居行星

价值共创视角下糖尿病社区管理模式实践与思考

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中国全科医学 2024年第5期27卷 563-569,588页

作者：牛路瑶营心语张树琴安志新季婧雅刘跃华高月霞南通大学公共卫生学院江苏省南通市226019 江苏省南通市通州区平潮中心卫生院 226300 清华大学健康中国研究院北京市100084

中国是全球糖尿病患病率增长较快的国家之一,也是糖尿病患者最多的国家。《“健康中国203.”规划纲要》明确提出,要进一步防控重大疾病,实施糖尿病防治行动,指导糖尿病患者加强健康管理,延迟或预防糖尿病发生、发展。近20年来,价值共创... 详细信息

中国是全球糖尿病患病率增长较快的国家之一,也是糖尿病患者最多的国家。《“健康中国203.”规划纲要》明确提出,要进一步防控重大疾病,实施糖尿病防治行动,指导糖尿病患者加强健康管理,延迟或预防糖尿病发生、发展。近20年来,价值共创理论在健康服务领域应用发展较好,不同国家(地区)探索低成本、高效果的方案以预防和控制糖尿病发生,但目前在国内慢性病管理领域较为缺乏。本文基于价值共创视角,以基层社区为研究分析点,进一步总结国内外慢性病管理经验,从主动健康、组织引导、数字技术、激励考核4个方面提出展望,为优化完善基层糖尿病管理的服务体系,建立基于价值共创的多元主体协同参与社区慢性病管理模式,实现慢性病管理的共创、共治、共享提供参考。

关键词：糖尿病慢性病管理价值共创社区卫生服务综述

Single-atom Pt promoted Mo_(2)C for electrochemical hydrogen evolution reaction

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Journal of Energy Chemistry 2021年第6期30卷 371-377,I0009页

作者： Shanshan niu ji Yang Haifeng Qi Yang Su Zhiyu Wang jieshan Qiu Aiqin Wang Tao {3. State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina State Key Lab of Fine Chemicals Liaoning Key Lab for Energy Materials and Chemical EngineeringPSU-DUT Joint Center for Energy ResearchDalian University of TechnologyDalian 116024LiaoningChina College of Chemical Engineering Beijing University of Chemical TechnologyBeijing 100029China

Hydrogen generation from electrochemical water splitting powered by renewable energy is important to the sustainable society,but the prohibitive cost of current Pt electrocatalyst has impeded the large-scale production of hydrogen by water *** this contribution,a new low-Pt electrocatalyst for hydrogen evolution reaction(HER) has been fabricated by a facile one-pot synthesis approach,in which Pt^(2+)cations and phosphomolybdic acid confined in the metal-organic frameworks(MOFs) were submitted to pyrolysis to yield Pt single atoms dispersed into Mo_(2)C nanocrystals in 3.D porous carbon *** as-synthesized Pt_(1)-Mo_(2)C-C catalyst with Pt content of only 0.7 wt% exhibited remarkably enhanced activity for HER in 1 M KOH,with overpotential at 10 mA/cm^(2) lowered from 211 mV to 155 mV and 7-fold higher mass activity(7.14 A/mgpt) than the benchmark 20 wt% Pt/*** promoted activity can be attributed to the electronic interaction between Pt single atoms and Mo2C surface,which not only improved water activation but also strengthened hydrogen adsorption,as indicated by FTIR and microcalorimetric characterizations.

关键词： Metal carbide Pt single atom MOF Hydrogen evolution reaction

Calibration of the cryogenic measurement system of a resonant haloscope cavity

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chinese Physics C 2024年第7期48卷 31-37页

作者：贺冬樊洁高昕高宇 Nick Houston 姬忠庆金贻荣李闯李金勉李田军刘世航牛家树彭智慧孙亮孙铮王佳卫镨先吴利娜相忠诚杨峤立张驰张文星张欣郑东宁郑瑞丰周建勇 Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan ProvinceDepartment of Physics and Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081China Institute of Physics Chinese Academy of SciencesBeijing 100190China College of Physics Sichuan UniversityChengdu 610065China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Institute of Theoretical Physics Faculty of ScienceBeijing University of TechnologyBeijing 100124China beijing Academy of Quantum Information sciences Beijing 100193China College of Mechanical and Electrical Engineering Wuyi UniversityNanping 354300China CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China School of Physical sciences University of Chinese Academy of SciencesBeijing 100049China Institute of Theoretical Physics Shanxi UniversityTaiyuan 030006China College of Physics and Optoelectronic Engineering Department of PhysicsJinan UniversityGuangzhou 510632China School of sciences Xi'an Technological UniversityXi'an 710021China Tsung-Dao Lee Institute and School of Physics and Astronomy Shanghai Jiao Tong University800 Dongchuan RoadShanghai 200240China National Astronomical Observatories Chinese Academy of Sciences20ADatun RoadChaoyang DistrictBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China

Possible light bosonic dark matter interactions with the Standard Model photon have been searched using microwave resonant *** this paper,we describe the cryogenic readout system calibration of a 7.13. GHz copper cavity with a loaded quality factor Q_(1)=10^(4)whose operation at a temperature of 22 mK is based on a dilution *** readout system consists of High Electron Mobility Transistors working as cryogenic amplifiers at 4 K,plus room-temperature amplifiers and a spectrum analyzer for signal power *** tested the system with a superconducting two-level system based on a single-photon source in the microwave frequency *** obtained an overall 95.6 dB system gain and–71.4 dB attenuation in the cavity's input *** effective noise temperature of the measurement system is 7.5 K.

关键词： dark matter superconducting two-level system Mollow triplet

Mesoporous silica nanospheres with the ability of photo-driven releasing sandela 803.for the application to wallpaper

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chinese Chemical Letters 2019年第3期30卷 747-749页

作者： Weihong ji Tianlu zhang Zhiguo Lu jie Shen jing Hu Yunwei niu Zuobing Xiao Xin zhang State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences university of chinese Academy of sciences Shanghai Research Institute of Fragrance and Flavor Industry School of Perfume and Aroma Technology Shanghai Institute of Technology

Fragrances are widely used in our daily life and have made great contributions to creating a clean and fresh healthy air environment. However, the rapid volatilization severely influences their storage,application and quality. Therefore, it is necessary and urgent to develop approaches to controllably release the odorants as demanded. In this study, photo-driven mesoporous silica nanospheres loaded with sandela 803.was designed, prepared and named as S803.MS-S. S803.MS-S possessed ordered mesoporous, large specific surface area and pore volume. After adsorption of sandela 803. the S803.MSS was added into wallpaper to prepare fragrant wallpaper S803.MS-S-W. And this wallpaper exhibited excellent sustained and controlled release performances stimulated by light.

关键词： Mesoporous silica nanospheres Sandela 803 Photo-driven release Wallpaper Azobenzene derivatives