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Acta Geologica Sinica(English Edition) 2015年第6期89卷 2088-2089页

作者： PAN Jiawei LI Haibing VAN DER WOERD Jerome SUN Zhiming SI Jialiang PEI Junling WU Fuyao chevalier Marie-Luce State Key Laboratory of Continental Tectonics and Dynamics Institute of GeologyCAGS Tectonique Active Institut de Physique du Globe de Strasbourg EOST Institute of Geomechanics CAGS

As one of the longest strike-slip fault in Asia,the Altyn Tagh Fault（ATF）defines the northern boundary of the Tibetan Plateau and plays a significant role inaccommodating the deformation resulting from the IndiaAsia... 详细信息

关键词： Asia Co The First Quantitative Slip-Rate Estimated Along the Ashikule Fault at the Western Segment of the Altyn Tagh Fault System ATF rate

青藏高原中部日干配错断裂第四纪活动特征及2020年7月23日西藏尼玛Mw6.4地震发震构造分析

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地球学报 2022年第2期43卷 173-188页

作者：刘富财潘家伟李海兵孙知明刘栋梁卢海建郑勇王世广白明坤 Marie-Luce chevalier 张蕾曹勇自然资源部深地动力学重点实验室中国地质科学院地质研究所北京100037 中国地质大学(北京) 北京100083 南方海洋科学与工程广东省实验室(广州) 广东广州511458 中国地质科学院地质力学研究所北京100081

日干配错断裂位于青藏高原中部,是“V”型共轭走滑构造中班公湖—怒江缝合带以北的一条NEE–SWW走向左行走滑断裂,在调节青藏高原南北向挤压和东西向伸展过程中起着重要的作用。在2008年1月9日及2020年7月23日,先后在该断裂南西端和北... 详细信息

日干配错断裂位于青藏高原中部,是“V”型共轭走滑构造中班公湖—怒江缝合带以北的一条NEE–SWW走向左行走滑断裂,在调节青藏高原南北向挤压和东西向伸展过程中起着重要的作用。在2008年1月9日及2020年7月23日,先后在该断裂南西端和北东支分别发生6级以上强震。因此,查明该断裂的晚第四纪活动性及其与区域强震活动的关系,有助于更好地认识该地区的活动构造变形样式及其控震特征。本文通过高精度卫星影像解译,结合野外调查和测量,研究了日干配错断裂的构造地貌特征和晚第四纪滑动速率,并分析了2020年7月23日西藏尼玛Mw6.4地震的发震构造。结果表明,日干配错断裂具有显著的线性展布特征,切割了第四纪地质地貌单元,形成一系列典型的构造地貌。断裂总体走向NEE60°~80°,延伸规模约360 km,累积位错量可能达到14~15 km。该断裂晚更新世以来的平均走滑速率为0.2~0.3 mm/a,远小于前人在班公湖—怒江缝合带南侧左行走滑共轭断裂上获得的结果,指示班怒带南北两侧可能存在不同的构造变形机制和动力学背景。2020年尼玛Mw6.4地震是日干配错断裂北侧依布茶卡地堑活动的结果,发震断层应为该地堑的东缘边界正断层。上述研究结果可为更深入理解第四纪期间的青藏高原中部近东西向伸展变形过程及强震活动机制提供新的参考。

关键词：日干配错断裂依布茶卡地堑断层滑动速率 2020年尼玛Mw6.4地震青藏高原

Design and Manufacturing of A Ball Catcher’s Robot

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Design and Manufacturing of A Ball Catcher’s Robot

作者： chevalier Alexandre 东南大学

学位级别：硕士

The purpose of the thesis was to build an Arduino-based robot that is able to catch tennis balls on an unknown area without the help of its *** paper describes the whole project,from the design to the realization with the tests and *** functioning of the robot was inspired from the automated vacuum cleaners,and the ball catcher system from construction machine,It means the ball catcher system is easy to remove,and could be replaced by another tool in order to realize other *** and electrical studies were realized to choose the *** the algorithms,probabilities studies and simulations results were made to determine the best way to cover with efficiency a large area by moving *** develop the algorithm,some random walks path finding,such as random walk,spiral,snaking and wall follow algorithms were compared,and simulated on Webots to select the best one to *** mathematics results obtained on Wolfram Mathematica also describe more deeply the random walk algorithm,depending on the size of the *** theorical obtained results showed that a random walker will easily cover all the sites for a small *** is confirmed with the realized tests with our ***,the implemented algorithm is based on a random walk,using ultrasonic,choc and infrared sensors to get information on the *** a larger lattice,the results showed that the algorithm meet some issues to visit al the sites and is visiting some sites more than *** the tests,the reliability of the ball catcher system was *** chosen solution has evolved during the project but is still not completely *** study concludes that the random walk algorithm has a limited range to conserves a good *** larger areas,upgrades need to be conducted,such as adding encoders,or change the microcontroller for a more powerful one,in order to do execute image *** the ball catcher,a system that doesn’t need activation,but

关键词：接球机器人壁面跟踪随机游走器红外传感器

One-Hour Contact with the Earth’s Surface (Grounding) Improves Inflammation and Blood Flow—A Randomized, Double-Blind, Pilot Study

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Health 2015年第8期7卷 1022-1059页

作者： Gaétan chevalier Gregory Melvin Tiffany Barsotti Developmental and Cell Biology Department University of California at Irvine Irvine USA Total Thermal Imaging La Mesa USA California Institute for Human Science Encinitas USA

Earthing (grounding) refers to the human body being in contact with the surface of the Earth by barefoot exposure outdoors or using special indoor systems connected to the Earth. Previous studies have showed multiple beneficial effects as a result of such contact, including better sleep, normalization of cortisol, reduced inflammation, pain and stress, and better blood flow. To determine if Earthing for one hour improves facial blood circulation, forty middle-aged volunteers were divided into a grounded group and a sham-grounded group according to a double-blind procedure. They were asked to sit in a comfortable recliner chair equipped with a grounding mat, pillow and patches. The grounding systems were either grounded or sham-grounded via a wire to the ground port of a power outlet. An infrared imaging camera was used to measure changes in blood flow and temperature. Thermal imaging showed clearly improved circulation of fluids (including blood) throughout the torso, which in turn, translates into enhanced delivery of blood to the head and improved blood circulation in the face as well. The results of this innovative study demonstrate that even one-hour contact with the Earth appears to promote significantly autonomic nervous system control of body fluids and peripheral blood flow that may improve blood circulation in the torso and face, facial tissue repair, skin health and vitality and optimize facial appearance (face anterior view p = 0.002;face lateral views p = 0.017;full anterior torso view p = 0.002). Further study using larger comparison groups and following subjects for a longer period of time (longitudinal study) is warranted.

关键词： Earthing Grounding Thermal Imaging Thermography Blood Flow

藏南冲巴雍错淡色花岗岩体热年代学及其对藏南拆离系和亚东裂谷构造活动时限的制约

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岩石学报 2020年第10期36卷 3097-3116页

作者：李开玉 chevalier Marie-Luce 李海兵潘家伟王世广白明坤刘富财王平中国地质科学院地质研究所自然资源部深地动力学重点实验室北京100037 南方海洋科学与工程广东省实验室(广州) 广州511458 中国地质大学地球科学与资源学院北京100083 北京大学地球与空间科学学院北京100871

藏南拆离系和亚东裂谷是藏南地区重要的伸展构造,与青藏高原的隆升和生长密切相关,其新生代以来的构造热-年代学研究,对探讨高原的生长过程和大陆变形动力学具有重要意义。本文对西藏南部亚东地区的冲巴雍错花岗岩进行了U-Pb定年和低温... 详细信息

藏南拆离系和亚东裂谷是藏南地区重要的伸展构造,与青藏高原的隆升和生长密切相关,其新生代以来的构造热-年代学研究,对探讨高原的生长过程和大陆变形动力学具有重要意义。本文对西藏南部亚东地区的冲巴雍错花岗岩进行了U-Pb定年和低温热年代学分析,结果表明,岩体自22Ma侵位后经历了5个不同的冷却阶段:18~15.6Ma期间岩体的冷却速率为125℃/Myr;15.6~11Ma期间,平均冷却速率约94℃/Myr;11~7Ma期间,平均冷却速率约24℃/Myr;7~3Ma平均冷却速率约5℃/Myr;3Ma以后平均冷却速率约为14℃/Myr。因岩体位于藏南拆离系内,又被亚东断层切过,认为藏南拆离系的活动时限为22~11Ma,亚东正断层的起始活动时间为11Ma,且热历史模拟结果显示岩体在~3Ma发生了快速冷却,可能指示了亚东裂谷的一次强烈活动。

关键词：藏南拆离系亚东裂谷淡色花岗岩 U-Pb定年低温热年代学

鲜水河断裂带乾宁段岩石特征与内部结构及其物理-化学性质

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岩石学报 2021年第10期37卷 3204-3224页

作者：吴琼李海兵 chevalier Marie-Luce 米桂龙李超何祥丽李亚林中国地质科学院地质研究所自然资源部深地动力学重点实验室北京100037 中国地质大学(北京) 北京100083 南方海洋科学与工程广东省实验室(广州) 广州511458 应急管理部国家自然灾害防治研究院北京100085

断裂带的变形行为和断层滑移机制是目前地震研究关注的热点,断裂带岩石特征、内部结构与物理化学性质是确定断层蠕滑或粘滑行为以及断层滑移机制的基础和关键。本文以鲜水河断裂带乾宁段地表出露的断裂岩为研究对象,通过野外地质调查、... 详细信息

断裂带的变形行为和断层滑移机制是目前地震研究关注的热点,断裂带岩石特征、内部结构与物理化学性质是确定断层蠕滑或粘滑行为以及断层滑移机制的基础和关键。本文以鲜水河断裂带乾宁段地表出露的断裂岩为研究对象,通过野外地质调查、室内光学显微镜、扫描电镜、粒度统计、粉末X射线衍射分析(XRD)和薄片X射线荧光光谱分析(XRF)等多种研究方法,对鲜水河断裂带岩石特征、结构构造、物性、矿物成分及化学元素分布开展了详细的分析,并探讨了相关变形行为和滑移机制。分析表明:(1)断裂带核部主要由黑色断层泥、浅黄色及黄色断层角砾岩和灰色碎裂岩、灰色断层角砾岩组成,呈单核对称结构;(2)黑色断层泥厚3~5cm,具有快速滑动结构特征,表现为断层粘滑行为。断层泥可划分出13个滑移带,最窄滑移带厚约40μm,至少代表13期古地震事件;(3)断层泥主要由伊利石、高岭石和石英等矿物组成,其中边部伊蒙混层含量异常高,为最新一次古地震的主滑移带。由于伊利石和伊蒙混层(或蒙脱石)为主要黏土矿物的断层泥渗透率低、孔隙流体压力大,以及发现断层泥楔入脉,表明地震过程中断层滑动存在热增压弱化机制;(4)从断层泥不同滑动带中碎块蚀变程度和矿物分布特征来看,地震主滑动带有向碎裂岩方向迁移的趋势。推测断层在滑动过程中,更趋向于向弱矿物含量高(如伊利石、伊蒙混层)、强矿物含量低(如方解石、高岭石)的围岩一侧迁移。

关键词：鲜水河断裂带岩石组成断层泥内部结构滑移机制

青藏高原西北部晚第四纪以来的隆升作用——来自西昆仑阿什库勒多级河流阶地的证据

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岩石学报 2013年第6期29卷 2199-2210页

作者：潘家伟李海兵孙知明司家亮裴军令刘栋梁 MarieLuce chevalier 大陆构造与动力学国家重点实验室中国地质科学院地质研究所北京100037 中国地质科学院地质力学研究所北京100081

青藏高原的隆升是新生代最壮观的地质事件,关于青藏高原隆升研究一直是地学界的研究焦点。河流阶地的发育记录了丰富的构造运动和气候变化的信息,近年来被广泛应用于构造运动和气候演变的研究,但前人研究的河流阶地基本分布在青藏高原... 详细信息

青藏高原的隆升是新生代最壮观的地质事件,关于青藏高原隆升研究一直是地学界的研究焦点。河流阶地的发育记录了丰富的构造运动和气候变化的信息,近年来被广泛应用于构造运动和气候演变的研究,但前人研究的河流阶地基本分布在青藏高原的周缘,阶地的形成可能是气候与构造运动共同作用的结果。本文通过高分辨率卫星影像的解译,在青藏高原内部的西昆仑阿什库勒地区发现了多达七级的河流阶地。对该处河流阶地结构、沉积特征、几何特征的研究表明该阶地是典型的构造成因阶地。野外利用全站仪对河流阶地地貌形态进行了精细的测量,获得了各级阶地的拔河高度分别为4～5m(T1)、9～10m(T2)、16～18m(T3)、28～31m(T4)、45～48m(T5)。通过宇宙成因核素10Be测年方法对各级阶地面的暴露年龄进行了测定,获得了各级阶地的形成时代分别为7.7±0.7ka(T1)、32.7±3.1ka(T2)、53.6±2.5ka(T3)、115.7±23.2ka(T4)、166.8±10.4ka(T5)、19.5±8.5ka(T6)。由此确定了晚第四纪166.8ka以来不同时期的河流下切速率总体介于0.2～0.35mm/yr,该速率代表了青藏高原西北部晚第四纪166.8ka以来的平均隆升速率。

关键词：青藏高原隆升晚第四纪河流阶地宇宙核素测年

帕米尔东北缘-西昆仑的构造地貌及其构造意义

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岩石学报 2011年第11期27卷 3499-3512页

作者：刘栋梁李海兵潘家伟 chevalier Marie-Luce 裴军令孙知明司家亮许伟中国地质科学院地质研究所大陆构造与动力学国家重点实验室北京100037 中国地质科学院地质力学研究所中国地质科学院古地磁重点实验室北京100081

帕米尔东北缘-西昆仑位于青藏高原西北部,受三条大型断裂:康西瓦断裂、主帕米尔-铁克里克断裂和公格尔断裂的制约。通过野外考察、卫星遥感图像解译、ASTERGDEM高程数据的分析,对上述三条断裂及整个区域进行构造地貌研究,并探讨其构造... 详细信息

帕米尔东北缘-西昆仑位于青藏高原西北部,受三条大型断裂:康西瓦断裂、主帕米尔-铁克里克断裂和公格尔断裂的制约。通过野外考察、卫星遥感图像解译、ASTERGDEM高程数据的分析,对上述三条断裂及整个区域进行构造地貌研究,并探讨其构造意义。结果表明:康西瓦断裂为左行走滑断裂;主帕米尔-铁克里克断裂为逆冲断裂;公格尔断裂和塔什库尔干断裂分别为右行、左行走滑正断层,连接两者的是塔合曼正断裂。通过ASTERGDEM高程数据的高程分布、局部高程差和坡度分析,表明帕米尔东北缘-西昆仑至塔里木盆地存在三级特征地貌(塔里木盆地、塔里木盆地南缘山前褶皱逆冲带和帕米尔东北缘-西昆仑);西昆仑地区受印度/亚洲板块碰撞而产生垂向物质运动,由于三条大型断裂控制在西侧断裂附近存在水平方向的物质运动,垂直和水平两种运动的存在促使靠近康西瓦和公格尔断裂形成高山地貌。

关键词：公格尔断裂康西瓦断裂主帕米尔-铁克里克断裂构造地貌帕米尔东北缘-西昆仑

Challenging Nanopores with Analyte Scope and Environment

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Journal of Analysis and Testing 2019年第1期3卷 61-79页

作者： Buddini I.Karawdeniya Y.M.Nuwan D.Y.Bandara Jonathan W.Nichols Robert B.chevalier James T.Hagan Jason R.Dwyer Department of Chemistry University of Rhode IslandRichard E.Beaupre Center for Chemical and Forensic Sciences140 Flagg Rd.KingstonRI 02881USA Present Address:Department of Mechanical Engineering Lyle School of EngineeringSouthern Methodist UniversityDallasTX 75275USA Present Address:Nova Biomedical 200 Prospect StreetWalthamMA 02454-9141USA

Nanopores are nanofluidic channels formed through thin membranes that can deliver standout single-molecule and single-particle sensing *** targets include small molecules and nanoparticles,and the DNA,protein,and glycan biopolymers underpinning genomics,proteomics,and ***-notably even in the simplest implementation,resistive-pulse sensing-does not inherently require sample labeling and,thus,offers the potential for general sensing util-ity combined with the prospective benefits of reduced sample processing requirements.A key pursuit for biopolymer sens-ing is the characterization of monomer *** review article will provide an overview of the use of nanopores for general chemical sensing and-omics-related applications,*** broad analyte scope provides fertile ground for a discussion of principles governing nanopore sensing and considerations useful for guiding nanopore *** nanopores to be effective in the face of broad analyte scope,stringent requirements on analytical performance must be met within the particular analyte class without sacrificing the operational flexibility necessary to be responsive across classes presenting very different physical and chemical *** sample-driven challenges provide a unifying framework for discussing aspects of nanopore fabrication,properties,and integration;sensing paradigms,performance,and prospects;fundamental electrokinetic and interfacial phenomena;and practical challenges facing the use and further development of nanopore devices.

关键词： Nanopore Single-molecule sensing Nanofluidics Point-of-care Silicon nitride Resistive pulse Wearable sensors Quality assurance

Mutational Analyses of a Fork Head Associated Domain Protein, DAWDLE, in <i>Arabidopsis thaliana</i>

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American Journal of Plant Sciences 2014年第18期5卷 2811-2822页

作者： Lakshmi Ayiloor Narayanan Dipaloke Mukherjee Shuxin Zhang Bin Yu David chevalier Center for Plant Science Innovation & School of Biological Sciences University of Nebraska-Lincoln Lincoln Nebraska USA Department of Biological Sciences Mississippi State University Starkville Mississippi USA Department of Food Science Nutrition and Health Promotion Mississippi State University Starkville Mississippi USA

DAWDLE (DDL) gene encodes a protein that contains an N-terminal arginine-rich domain and a C-terminal Fork Head Associated (FHA) domain in Arabidopsis thaliana. DDL protein is believed to function in microRNA biogenesis by mediating the recruitment of pri-microRNA to DICER-LIKE 1 and also stabilizing the microRNA. The aim of this study was to conduct a structure-function analysis to identify the regions in DDL that are of functional significance. Targeted Induced Local Lesions in Genome screen was performed in the Columbia erecta-105 background of Arabidopsis resulting in the identification of eight point mutations spanning DDL. The mutants were characterized by phenotypic and molecular analyses based on the prior knowledge on ddl knockout mutants. Height of the plant, hypocotyl and root length, and fertility were measured for phenotypic characterization, and microRNA172 levels were measured to assess the mutation effect at the molecular level. Phenotypic and molecular analyses of the mutants revealed effects resulting in ddl phenotypes of varying degrees in different organs and each mutant displayed at least one phenotype studied. Reduction in fertility and increase in stem length were two phenotypes that most of the mutants consistently displayed. Identification and characterization of several key residues in the arginine rich region and FHA domain will serve as an important tool for elucidation of DDL signaling pathway.

关键词： microRNA DAWDLE FHA Domain Gene Mapping Arabidopsis