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中国植物病理学会2021年学术年会

作者： LI Shaoqing SHEN Quan Wang Haihua HE Feng xiao zuyin PENG Xixu ZhOU Meiliang TANG Xinke School of Life Science Hunan University of Science and Technology Key Laboratory of Genetic Improvement and Multiple Utilization of Economic Crops in Hunan Province Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal-polluted Soils College of Hunan Province Institute of Crop Science Chinese Academy of Agricultural Sciences

Buckwheat(Fagopyrum tataricum) is recognized as a healthy food with abundant nutrients and high levels of *** April and May of 2020,an unknown tartary buckwheat leaf spot distinct from Nigrospora leaf spot was observed in Xiangxiang,Hunan,China(27°49′54″N,112°18′48″E.).Disease incidence was 60%-70% within three fields(totally 7 000 m).The disease occurred after plants *** symptoms began as circular,or ellipsoid,chlorotic,water-soaked spots,mostly on leaf apexes or leaf *** small spots gradually enlarged and often coalesced to form large circular or irregular,pale to light brown lesions,and the infected leaves eventually withered and fell *** 2 mm × 2 mm infected tissue pieces collected from five locations were sterilized in 70% ethanol for 10 s,in 2% NaClO for 30 s,rinsed in sterile water for three times,dried,and placed on PDA with lactic acid(3 mL/L).After 3-5 days at 28 ℃ in the dark,17 fungal isolates were purified using single-spore isolation *** all fungal isolates had similar *** were initially olive green with white margin and later turned dark olive or black with profuse *** were borne in long chains,tawny to brownish green,with 1-3 longitudinal and 1-7 transverse septa,pyriform,and measured 9.5-39.6 μm long,and 5.1-12.6 μm wide(n=50).Based on morphological characteristics,the fungus was identified as Alternaria *** internal transcribed spacer(ITS),glyceraldehyde-3-phosphate dehydrogenase(GAPDH),translation elongation factor 1-α(TEF) and Alternaria major allergen(Alt al) genes of isolate BLS-1 were amplified using ITS1/ITS4,EF1-728 F/EF1-986 R,Gpdl/Gpd2 and Alt-4 for/Alt-4 rev,*** were deposited into GenBank with *** MW453091(ITS),MW480219(GAPDH),MW480218(TEF),and MW480220(Alt al).BLASTn analysis showed 99.8%(ITS,MH854758.1),100%(GAPDH,KP124155.1),99.8%(TEF,KP125073.1) and 100%(Alta1,KP123847.1) identity with reference strain CBS 106.24 of ***

关键词： Tartary buckwheat(Fagopyrum tataricum) leaf Spot Alternaria alternata pathogen identification

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基于三维可视化提高地面设备生产效率的研究

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现代工业经济和信息化 2023年第9期13卷 124-125,143页

作者：肖祖印苗杰中海油能源发展股份有限公司工程技术分公司天津300452

常规变频控制系统占用平台空间大,通过对电气元件进行重新优化选型,对柜体内部结构进行优化,ESP地面紧凑式矢量变频控制系统集成柜体安装尺寸平均缩小30%以上。尺寸缩减后,由于设备内部空间较为紧凑,存在部分器件不方便安装,安装工时较... 详细信息

常规变频控制系统占用平台空间大,通过对电气元件进行重新优化选型,对柜体内部结构进行优化,ESP地面紧凑式矢量变频控制系统集成柜体安装尺寸平均缩小30%以上。尺寸缩减后,由于设备内部空间较为紧凑,存在部分器件不方便安装,安装工时较长的情况。课题组通过调研,采用SolidWorks三维设计软件和Shot8三维可视化工具,设计出合页式控制回路安装板和可拆卸式风机安装板,并对相应的安装工艺进行优化。实际应用表明,DPC600变频器的安装工时节省了36%,安装效率显著提高。

关键词：变频控制系统变频器 SolidWorks Shot8 控制回路安装板

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Recent progresses in theoretical studies and satellite observations for collisionless magnetic reconnection

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Chinese Science Bulletin 2012年第12期57卷 1369-1374页

作者： WANG xiaoGang xiao ChiJie PU zuyin WANG JiaQi School of Physics and State Key Laboratory of Nuclear Physics ＆ Technology Peking University Beijing 100871 China School of Earth and Space Sciences Peking University Beijing 100871 China College of Physical Science and Technology Sichuan University Chengdu 610064 China

As an essential mechanism in large scale fast magnetic energy releases and field reconfigurations processes in space,astrophysical, and laboratory plasmas,magnetic reconnection,particularly collisionless magnetic reconnection,has been studied for more than 65 *** progresses have been achieved in recent years and basic features of the process have been well understood,largely due to more and more satellite observation data available in the last ***,a few outstanding issues are still remained *** in the paper review the development of collisionless magnetic reconnection studies and major achievements in recent years,and also briefly discuss the open questions remained to be answered in studies of collisionless magnetic reconnection.

关键词：卫星观测数据磁场重联碰撞天体物理学配置过程空间领域能量释放等离子体

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Recent studies in satellite observations of three-dimensional magnetic reconnection

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Science China(Technological Sciences) 2007年第3期50卷 380-384页

作者： xiao ChiJie WANG xiaoGang PU zuyin MA ZhiWei ZHAO Hui ZHOU GuiPing WANG JingXiu LIU ZhenXing National Astronomical Observatories Chinese Academy of SciencesBeijing 100012China School of Physics Peking UniversityBeijing 100871China School of Earth and Space Sciences Peking UniversityBeijing 100871China Institute for Fusion Theory and Simulation Zhejiang UniversityHangzhou 310027China Center for Space Science and Applied Research Chinese Academy of SciencesBeijing 100080China

Magnetic reconnection is a main process converting the magnetic energy into thermal and kinetic energy in plasmas. It is one of the fundamental problems of crucial importance not only to space plasmas physics and space weather studies,such as the solar flare,coronal mass ejections and magnetospheric substorms,but also to the stability analysis in magnetically confined fusion. In general,except for cases with periodical boundary conditions,three-dimensional(3D) magnetic re-connection occurs on magnetic separatrices generated by magnetic nulls. Here we briefly introduce/review the theories and some recent satellite observations of 3D magnetic reconnection. Topics to be further studied are also discussed.

关键词： magnetic reconnection null separatrix separator X-point X-line

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Braking of high-speed flows in the magnetotail:THEMIS joint observations

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Chinese Science Bulletin 2014年第3期59卷 326-334页

作者： Wensai Shang Zhonghua Yao Quanqi Shi Weijie Sun Suiyan Fu Jiang Liu Anmin Tian Qiugang Zong zuyin Pu Ting xiao Vassilis Angelopoulos Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment School of Space Science and PhysicsShandong University School of Earth and Space Sciences Peking University IGPP/ESS University of CaliforniaLos Angeles Los Angeles

The motion and deceleration processes of plasma sheet high-speed flows have great significance to magnetospheric particle acceleration,magnetic field perturbation,magnetic flux transport,triggering of substorm,and the current system formation in the *** February to April 2009,two satellites of the Time History of Events and Macroscale Interactions during Substorms mission,THA and THE,were often separated largely in Z direction,but had small X and Y *** special configuration allows simultaneous observations of highspeed flows at the center and boundary of the plasma *** on selected case study and statistical analysis,it is found that for about 89%of the events we selected,the probe further away from the neutral sheet observed the high-speed flow earlier than the one close to the center,and the flow is mainly field *** for about 95%events the probe further away from the neutral sheet observed higher X component of the plasma *** the hypothesis that parallel flow keeps the same speed during its earthward propagation while central plasma sheet stream uniformly or suddenly brakes on its way to the earth,we deduced the position where the deceleration begins to be between 13 Re and 17 Re downtail,where thenear-earth reconnection is supposed to *** addition,our statistical results show that dipolarization fronts observed in the central plasma sheet are more prominent than those observed in the plasma sheet boundary layer ahead of the high-speed flow.

关键词：高速制动观测等离子体片磁流减速过程统计分析边界层流等离子体流

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Continuous lobe reconnectionin the mid-tail and its relationship to substorms:Cluster observations of continuous lobe reconnection in the mid-magneto tail

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Chinese Science Bulletin 2005年第18期50卷 2057-2063页

作者： CAO Xin PU zuyin ZHANG Hui FU Suiyan xiao Chijie LIU Zhenxing J. B. cao A. Korth M. Frazen Q. G. Zong H. Reme K. H. Glassmeier School of Earth and Space Science Peking University Beijing 100871 China The National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China Center for Space Science and Applied Research Chinese Academy ofSciences Beijing 100080 China Max-Planck-Institute for Solar System Research Germany CSR Boston University US CNSR France IGM TU Braunschweig Germany

When the IMF turns southward, a great amount of magnetic energy is stored in the magnetotail, and the electric field across the magnetotail substantially en-hances. As long as magnetic reconnection (MR) in the mag-netotail initiates and continues, the magnetic field and plasma in the central plasma sheet are carried away to the near-Earth and down to the tail, the magnetic field and plasma in the lobe region enter the CPS and are involved in MR. We call this process “Continuous Lobe Reconnection (CLR)”. In this paper a detailed analysis of Cluster observa-tion of MR through 2001―2003 is made. Plenty of CLR events are found that led to considerable changes of tail con-figuration, appearance of BBF, as well as large-scale bubbles in which both plasma temperature and number density sub-stantially decrease. It is shown that in general CLR events last for dozens of minutes and have good correspondence to substorm initiation under the condition of continuous southward IMF.

关键词：圆裂片重接亚暴磁能磁尾等离子体

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Correlation between continuous lobe reconnection in the mid magnetotail and substorm expansion onset

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Chinese Science Bulletin 2006年第22期51卷 2795-2804页

作者： ZHANG Hui PU zuyin CAO Xin FU Suiyan xiao Chijie LIU Zhenxing A. Korth M. Frazen ZONG Qiugong H. Reme K H Glassmeier R. Friedel G. D. Reeves M. W. Dunlop School of Earth and Space Sciences Peking University Beijing100871 China Center for Space Science and Applied Research Chinese Academy of Sciences Beijing 100080 China National Astronomical Observatories Chinese Academy of SciencesBeijing 100081 China Max-Planck-Institute for Solar System Research Katlenbury-Lindau37191 Germany Center for Atmospheric Research UML Lowell MA01854 USA CESR/CNRS Toulouse F-31028 France 1GM Braunschweig D-38106 Germany Los Alamos National Laboratory Los Alamos NM 87545 USA Rutherford Appleton Laboratory Chilton OX110 OX UK

Cluster/HIA 和 Cluster/FGM 在 2001 -2003 从 7 月在时期期间测量到 10 月的血浆表十字路口上的数据被分析。在连续脑叶的典型特征上基于以前的工作重新连接在参考，二案例研究和统计分析描述的离子(CLR ) 为发生在这个时期期间的事件... 详细信息

Cluster/HIA 和 Cluster/FGM 在 2001 -2003 从 7 月在时期期间测量到 10 月的血浆表十字路口上的数据被分析。在连续脑叶的典型特征上基于以前的工作重新连接在参考，二案例研究和统计分析描述的离子(CLR ) 为发生在这个时期期间的事件在 midmagnetotail 和潜水艇暴风雨扩大发作在在 CLR 之间的关联上被执行。几乎所有 CLR 事件在有潜水艇暴风雨的靠近的连接，这被发现。CLR 的开始几乎总是是在在近的地球磁电机尾巴并且在基于 theground 的车站上看见的潜水艇暴风雨活动前的一些分钟。这提供 CLR 在连续向南方的星际间的磁场的时期期间是 substormexpansion 发作的虚拟原因的一个清楚的指示。

关键词：裂片重接高速流亚暴特征性统计分析地磁学

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Simulation studies of high-latitude magnetospheric boundary dynamics

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Science China(Technological Sciences) 2004年第4期47卷 421-435页

作者： PU zuyin1, SHI Quanqi1,3, xiao Chijie1, FU Suiyan1, ZHANG Hui1,2, ZONG Qiugang2 & LIU Zhenxing3 1. School of Earth and Space Sciences, Peking University, Beijing 100871, China 2. Center for Space Physics, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA 3. Center for Space Science and Application Research, Chinese Academy of Sciences, Beijing 100080, China 1. School of Earth and Space Sciences Peking University 100871 Beijing China 2. Center for Space Science and Application Research Chinese Academy of Sciences 100080 Beijing China 3. Center for Space Physics Boston University 725 Commonwealth Avenue 02215 Boston MA USA

Magnetic reconnection at the high-latitude magnetopause is studied using 2.5-dimensional Hall-MHD simulation. Concentric flow vortices and magnetic islands appear when both Hall effect and sheared flow are considered. Plasma mixing across the magnetopause occurs in the presence of the flow vortices. Reconnected structure generated in the vicinity of the subsolar point changes its geometry with increasing flow shear while moving to high latitudes. In the presence of flow shear, with the Hall-MHD reconnection a higher reconnection rate than with the traditional MHD is obtained. The out-of-plane components of flow and magnetic field produced by the Hall current are redistributed under the action of the flow shear, which makes the plasma transport across the boundaries more complicated. The simulation results provide some help in understanding the dynamic processes at the high latitude magnetopause.

关键词： magnetopause, entry layer, magnetic reconnection, vortex reconnection, Hall effect, flow shear.

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一种可用于微波辐射计热定标源的测温控温系统

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遥测遥控 2000年第3期21卷 62-64页

作者：肖志辉张祖荫华中理工大学武汉430074

介绍测温控温的微波热定标源研究中所用的热定标源的结构及测温控温电路系统

关键词：微波辐射计 +热定标源 +测温控温

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关于磁重联区三维磁零点的卫星观测研究

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北京大学学报（自然科学版） 2007年第3期43卷 289-295页

作者：肖池阶王晓钢濮祖荫马志为赵辉周桂萍汪景琇傅绥燕刘振兴中国科学院国家天文台北京100012 北京大学物理学院北京100871 北京大学地球与空间科学学院北京100871 浙江大学聚变理论与模拟研究中心杭州310027 中国科学院空间科学与应用研究中心北京100080

磁重联是等离子体中磁场能量快速转换为粒子动能和热能的主要途径,是空间物理和等离子体物理中的重要现象。磁重联过程发生在磁场的拓扑分形面上;这种分形面一般是由磁零点附近磁场梯度张量的本征矢量确定的。磁零点的三维特性要求至少... 详细信息

磁重联是等离子体中磁场能量快速转换为粒子动能和热能的主要途径,是空间物理和等离子体物理中的重要现象。磁重联过程发生在磁场的拓扑分形面上;这种分形面一般是由磁零点附近磁场梯度张量的本征矢量确定的。磁零点的三维特性要求至少空间4点的同时测量。Cluster计划提供了迄今为止唯一的卫星测量手段。基于Poincare指数方法分析Cluster卫星在地球磁尾的探测数据,(1)找到了磁重联过程中存在4种磁零点的证据;(2)发现磁零点周围磁场的空间特征尺度大约为离子惯性长度,从而首次揭示霍尔效应可能在三维磁重联中起重要作用;(3)在重联区找到匹配的磁零点对,并计算出零点连线的长度,确定了所产生的磁场的拓扑分形面;(4)发现在零点连线附近存在低杂波频率的电磁振荡,这为磁重联过程中可能的电子加速、加热机制提供了观测基础。

关键词：磁重联磁零点分形面零点连线低杂波频率振荡

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