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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, {2. 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 10002., china 4. Guangzhou Marine Geological Survey, Ministry of Land & Resources, Guangzhou 510075, china 5. Ecole Polytechnique Montreal, H3C3A7, Canada Key Laboratory of Marginal Sea Geology and Resources Chinese Academy of Sciences Guangzhou China china university of Geo{2. (beijing) Beijing China Research Center of Science & Technology Department CNOOC Beijing China Guangzhou Marine Geological Survey Ministry of Land & Resources Guangzhou China Ecole Polytechnique Montreal 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 Tinjia fault. The southern extension of the Lupar fault dies out beneath the NW Borneo while the Tinjia 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 Tinjia fault may be the boundary between the Balingian block and the Nansha block. Hence, the line linking the Yue- dong fault and the Tinjia 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.

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35个城市2.15~2.2.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35个城市2.15~2.2.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,2.15~2.2.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35个城市PM_(2.5)原始序列总方差的贡献率分别为51.6%、35.9%和7.0%,沿海城市更受短期分量影响.2.15~2.18年气象条件不利于淮河流域PM_(2.5)浓度的降低,2.19~2.2.年气象条件有利于PM_(2.5)浓度的降低.2.15~2.2.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2..3%、2..1%、31.0%、2..3%、2..8%和2..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%、2..6%、2..5%和2..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36 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

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 zhang 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 2.1 mV to 155 mV and 7-fold higher mass activity(7.14 A/mgpt) than the benchmark 2. wt% Pt/*** promoted activity can be attributed to the electronic interaction between Pt single atoms and Mo2. 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 7.138 GHz copper cavity with a loaded quality factor Q_(1)=10^(4)whose operation at a temperature of 2. 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

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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2.KHz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

Oxygen and nitrogen tailoring carbon fiber aerogel with platinum electrocatalysis interfaced lithium/sulfur(Li/S)batteries

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chinese Chemical Letters 2023年第1期34卷 145-151页

作者： Lei ji Xia Wang Yongfeng jia Xiaoxi Qin Yi Sui Huizhong Yan Zhiqiang {2. jinghai Liu Yuegang zhang State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030China Inner Mongolia Key Laboratory of Carbon Nanomaterials Nano Innovation Institute(NII)College of Chemistry and Materials ScienceInner Mongolia MinZu UniversityTongliao 028000China Department of Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage CenterCollege of ChemistryNankai UniversityTianjin 300071China

Sluggish kinetics of lithium/sulfur(Li/S)conversion chemistry and the ion channels formation in the cathode is still a bottleneck for developing future Li/S batteries with high-rate,long-cycling and ***,a rational cathode structure design of an oxygen(O)and nitrogen(N)tailoring carbon fiber aerogel(OCNF)as a host material integrated with platinum(Pt)electrocatalysis interface is employed to regulate Li/S conversion chemistry and ion *** Pt nanoparticles were uniformly sprayed onto the S surface to construct the electrocatalysis interface(Pt/S/OCNF)for generating ion channels to promote the effective penetration of electrolyte into the *** Pt/S/OCNF gives the cathode a high sulfur utilization of 77.5%,an excellent rate capacity of 813.2.m Ah/g(2.C),and an outstanding long-cycling performance with a capacitance retention of 82.6%and a decay of 0.086%per cycle after 2.0 cycles at 0.5 *** functional theory(DFT)calculations reveal that the Pt electrocatalysis interface makes the cathode a high density of state(DOS)at Fermi level to facilitate the electrical conductivity,charge transfer kinetics and electrocatalysis to accelerate the lithium polysulfides(LiPSs)electrochemical ***,the unique chemisorption structure and adsorption ability of Li2.n(n=1,2.4,6,8)and S8on OCNF are attributed to the bridging effects of interfacial Pt and the bonding of *** Pt electrocatalysis interface combined with the unique 3D hierarchical porous structure and abundant functional active sites at OCNF guarantee strong adsorption confinement,fast Li/S electrocatalytic conversion and unblocked ion channels for electrolyte permeation in cathode.

关键词： Li/S conversion chemistry Ion channels Pt electrocatalysis interface 3D aerogel host(OCNF) Adsorption confinement

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西藏扎日南木措流域水环境特征及其影响因素

环境科学 2024年第8期45卷 4529-4539页

作者：李志龙张惠芳刘长兵陈旭索娜卓嘎德吉央宗周云桥牛学锐董慧科王小萍兰州大学资源环境学院兰州730000 西藏自治区生态环境监测中心拉萨850000 中国科学院青藏高原研究所青藏高原地球系统与资源环境全国重点实验室北京100101

扎日南木措位于藏西北高寒草原带,为西藏第三大湖,生态环境脆弱,长期以来其流域水环境的研究资料缺乏,为探究其流域地表水环境特征及影响因素,于2.2.年8月~2.2.年6月丰、枯、平水期对流域湖泊和入湖河流水环境进行调查,结合数理统计以... 详细信息

扎日南木措位于藏西北高寒草原带,为西藏第三大湖,生态环境脆弱,长期以来其流域水环境的研究资料缺乏,为探究其流域地表水环境特征及影响因素,于2.2.年8月~2.2.年6月丰、枯、平水期对流域湖泊和入湖河流水环境进行调查,结合数理统计以及水化学分析、相关分析和主成分分析等方法,对流域水化学特征进行了评价,分析了水质时空差异特征,并对水质影响因素进行了探讨.结果表明:①扎日南木措流域水体呈碱性,湖水离子组成以Na^(+)、SO_(4)^(2.)和Cl^(-)为主,河流以Ca^(2.)、HCO_(3)~-和SO_(4)^(2.)为主.②硫酸盐、砷、氯化物和总磷为主要超标污染物,流域水质存在明显时空差异.时间上,硫酸盐、砷和总磷超标均表现为:丰水期>枯水期>平水期,氯化物的水期差异不明显;空间上,河流水质优于湖泊,湖泊中砷、总磷、TDS、硫酸盐、氯化物、K^(+)和Na^(+)的浓度较河流高1~2.数量级,水质超标现象基本集中于湖区,而湖内水质空间差异小.③流域水化学过程主要受蒸发-浓缩和岩石风化下的自然过程控制,各类元素经地表径流进入湖泊后,在蒸发浓缩作用下不断富集最后产生超标.④水质时间差异主要是丰水期更多的元素淋失和更强烈的蒸发作用导致;而空间差异则主要是流动水体和封闭水体的水动力条件差异导致.

关键词：扎日南木措水化学特征时空差异影响因素主成分分析

Pulse electrochemical synaptic transistor for supersensitive and ultrafast biosensors

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InfoMat 2023年第11期5卷 25-39页

作者： jianlong ji Zhenxing Wang Fan {2. Bin Wang Yan niu Xiaoning jiang Zeng-ying Qiao Tian-ling Ren Wendong {2. Shengbo Sang Zhengdong Cheng Qijun Sun College of Electronics Information and Optical Engineering Taiyuan University of TechnologyTaiyuanthe People’s Republic of China beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijingthe People’s Republic of China Department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleighNorth CarolinaUSA D Artificial Intelligence Biomedical Research Institute Taiyuanthe People’s Republic of China CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology(NCNST)Beijingthe People’s Republic of China Institute of Microelectronics Tsinghua UniversityBeijingthe People’s Republic of China College of Chemical and Biological Engineering Zhejiang UniversityHangzhouthe People’s Republic of China

High sensitivity and fast response are the figures of merit for benchmarking commercial *** to the advantages of intrinsic signal amplification,bionic ability,and mechanical flexibility,electrochemical transistors(ECTs)have recently gained increasing popularity in constructing various *** the current work,we have proposed a pulse-driven synaptic ECT for supersensitive and ultrafast *** pulsing the presynaptic input(drain bias,VD)and setting the modulation potential(gate bias)near transconductance intersection(VG,i),the synaptic ECT-based pH sensor can achieve a record high sensitivity up to 12. mV pH^(-1)(almost twice the Nernstian limit,59.2.mV pH^(-1))and an ultrafast response time as low as 8.75 ms(7169 times faster than the potentiostatic sensors,62.73 s).The proposed synaptic sensing strategy can effectively eliminate the transconductance fluctuation issue during the calibration process of the pH sensor and significantly reduce power ***,the most sensitive working point at VG,i has been elaborately figured out through a series of detailed mathematical derivations,which is of great significance to provide higher sensitivity with quasi-nonfluctuating amplification *** proposed electrochemical synaptic transistor paired with an optimized operating gate offers a new paradigm for standardizing and commercializing high-performance biosensors.

关键词： fast response pH sensor pulse electrochemical transistor supersensitive synaptic transistor