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| 1 | Multi-spacecraft observations of earthward flow bursts显示文摘On the basis of the plasma, electric and magnetic fields jointly observed by Cluster and the Double Star TC-1 spacecraft in the Earth's magnetotail, we have investigated the earthward flow bursts by introducing the momentum equation in the X-direction in the ideal conditions of magneto hydrodynamics (MHD). One earthward flow burst with a peak in excess of 500 km/s was selected, when the four spacecraft of Cluster were located around ?16 RE and TC-1 was located around ?10 RE in the X-direction. The inter-spacecraft distances in Y and Z directions were smaller than the statistical spatial scales of the bursty bulk flows. When the Y components of E and ?V×B were compared, there was no clear breakdown of the frozen-in condition during the earthward flow burst. With the measured plasma and magnetic parameters from two spacecraft at different positions in the magnetotail, the X component of the pressure gradient was calculated. Magnetic tension was calculated using the magnetic field measured at four points, which could be compared with the assumed constant in the past research with single satellite. When the pressure gradient and the magnetic tension were put into the MHD momentum equation, some samples of the earthward flow bursts were accelerated and some were decelerated. The braking process of the earthward flow burst was more complicated than what the past results had shown. The accelerated samples accounted for about one third of the whole earthward flow bursts and discontinuously located among the decelerated elements. The original single earthward flow burst event might be split into several short flow bursts when it was moving to the Earth. Our results may partly illustrate that the duration of fast flows during three phases of substorm becomes short near the Earth. The results are consistent with the past results that fast flows intrude to places earthward the typical braking region. | MA YuDuan CAO JinBin REME Henry DANDOURAS Iannis DUNLOP Malcolm LUCEK Elisabeth | 2012 | Science China(Technological Sciences)2012，55，5： | 8 |
| 2 | The radial evolution of earthward BBFs during substorm显示文摘We here study the occurrence rate,probability function of velocity and duration of earthward bursty bulk flows(BBFs) in the Inner Plasma Sheet(IPS,β>0.5) using the data of Cluster in 2001 and 2002.The occurrence rate of earthward BBFs increases with distance from the Earth up to ?19 RE,which is in agreement with the previous observations of the radial evolution of BBFs.About 54% of earthward BBFs in expansion phase have a velocity larger than 600 km/s,whereas only 38% of earthward BBFs in growth and recovery phases have a velocity larger than 600 km/s.The average velocity of earthward BBFs in expansion phase is 732 km/s,larger than those in growth phase(631 km/s) and recovery phase(617 km/s).The durations of earthward BBFs decrease with the decrease of downtail distance from Earth due to the braking of earthward BBFs.The duration of earthward BBFs in expansion phase is larger than that in growth and recovery phases.The average durations in growth,expansion,and recovery phases are respectively 49.3,71.5,and 47.6 s.Therefore,the ratios of transports of energy of earthward BBFs in growth,expansion,and recovery phases can be estimated to be 0.51:1:0.47.Thus,the earthward BBFs in the expansion phase have the largest capability of the transport of energy and can produce the largest braking effects,such as inertial currents and auroral activities. | REME H DANDOURAS I LUCEK E DUNLOP M | 2010 | Science China Earth Sciences2010，53，10： | 4 |
| 3 | Statistical survey on the magnetic field in magnetotail current sheets: Cluster observations显示文摘The distribution properties of the magnetic field in magnetotail current sheets have been explored statistically with the magnetic measurement data of the Cluster mission from June to November of the years 2001–2005.It is found that,on average,the strength of the magnetic field and its Bz component in the current sheet are weaker in the region close to midnight but stronger near the dawnside and duskside flanks,which implies that,in general,a thinner current sheet occurs near midnight and thicker ones near both flanks.The occurrence of tail current sheet flapping is higher on both flanks than in the midnight region,although it is most frequent in the dawn flank.Current sheets with a negative Bz component or a strong By component have a higher probability of occurring at magnetic local times of 21:00–01:00,indicating that magnetic activity,e.g.magnetic reconnection and current disruption occur more frequently there.Statistically,the probability distributions of the By component and the tilt angle of magnetic field lines in the current sheet are approximately normal distributions,and the occurrence probability of the flattened current sheet is about one third that of the normal current sheet.The magnetic field and Bz component in the current sheet mainly vary from 1 nT to 10 nT.The By component in the tail central current sheet is on average twice the IMF By at 1 AU. | RONG ZhaoJin SHEN Chao LUCEK E BALOGH A YAO Li | 2010 | Chinese Science Bulletin2010，55，23： | 3 |
| 4 | Solar wind transport into magnetosphere caused by magnetic reconnection at high latitude magnetopause during northward IMF: Cluster-DSP conjunction observations显示文摘An event of Cluster-Double Star conjunction observations of magnetic reconnec-tion at high latitude magnetopause nightside of both cusps and solar wind trans-port into magnetosphere caused by such reconnection process has been investi-gated. During northward IMF, Cluster/SC1 observed accelerated flows and ion heating associated with magnetic reconnection at high latitude magnetopause nightside of southern cusp. And Double Star observed cold dense solar wind plasma transported into dayside magnetosphere. The analysis on such conjunction observations shows that: (1) during northward IMF, magnetic reconnection occurs at high latitude nightside of southern cusp, accompanied by accelerated flows that are observed by Cluster/SC1; (2) the direction of the accelerated flows, with its sunward component Vx, dawnward component Vy, northward component Vz, is quite consistent with the theoretical anticipation under the condition of northward IMF with dawnward component By; (3) reconnection can heat plasma more in par-allel direction than in perpendicular direction, to a level of about 4 keV; (4) with reconnection taking place at high latitude magnetopause nightside of the southern cusp, TC-1 observed cold and dense plasma transported into magnetosphere; (5) by reconnection at high latitude magnetopause nightside of both cusps, solar wind flux tube can be captured by magnetosphere and pulled into dayside magneto-sphere. This event presents further observational evidence for magnetic reconnec-tion at high latitude magnetopause nightside of both cusps as an important mech-anism of sol-ar w-ind transport into magnetosphere. | M. DUNLOP E. LUCEK H. RME C. M. CARR | 2008 | Science China(Technological Sciences)2008，51，10： | 3 |
| 5 | ULF Waves Associated with Solar Wind Deceleration in the Earth's Foreshock显示文摘在 67 2003 年 4 月上在地球的前震与太阳的风减速联系的 ULF 波浪的特征用波浪望远镜技术被学习。在卫星框架, ULF 波浪是左手极化并且伪反平行的宣传模式,与在大约 18.63 mHz 的一座力量山峰。在 GSE 坐标的波浪向量被估计是 =(? 4.29, 2.28, 1.21 ) 瑮吗? | 符慧山 曹晋滨 杨彪 Lucek E Reme H Dandouras I | 2009 | Chinese Physics Letters2009，26，11： | 2 |
| 6 | Designing an LNA for a CDMA front end显示文摘 | Lucek J Damen R | 1999 | RF Design1999，22，2： | 1 |
| 7 | 100 Gbit/s packet self-routing using all-optical 6 bit keyword address recognition显示文摘 | Cotter D Lucek J K Shabeer M | 1995 | Electronics Letters1995，31，25： | 1 |
| 8 | All-optical clock Recovery using a mode-locked laser 显示文摘 | Smith K Lucek J K | 1992 | Electronics Lett1992，28，19： | 1 |
| 9 | 磁层快速对流事件的多点卫星联合观测显示文摘本文利用星簇Cluster的三颗卫星(C1,C3和C4)在2001年和2002年的数据,研究了快速对流事件(RCE,Rapid Convection Event)及其与亚暴的关系.结果显示单点卫星对RCE的观测,不能反映磁尾RCE的真实情况.在2002年7月25日发生的一次RCE事件,C1和C3观测到这次RCE,C4却没有观测到.在三颗卫星联合观测到的306次RCE中,C1观测到215次,C3观测到266次,C4观测到227次.统计研究表明,单点卫星观测到的RCE的平均时间也不能准确反映磁层内的RCE.由此推论在整个中心等离子体片内,快速对流事件所承担的能量和磁通量的输运量,可能远大于单点卫星观测给出的结果.用速度来定义的磁尾爆发性整体流(BBF,Bursty Bulk Flow)与亚暴的关系,比用磁通量定义的RCE与亚暴的关系要更加紧密. | 马玉端 曹晋滨 周国成 刘振兴 H. Reme I. Dandouras E. Lucek | 2007 | 地球物理学报2007，50，5： | 1 |
| 10 | All-optical clock recovery using a mode-locked laser显示文摘 | Smith K Lucek J K | | 0，，： | 1 |
| 11 | Preoperative statins and infectious complications following cardiac surgery显示文摘 | Coleman CI Lucek DM Hammond J | 2007 | Curr Med Res Opin2007，23，8： | 1 |
| 12 | Evolution of dipolarization in the near-Earth current sheet induced by Earthward rapid flux transport显示文摘 | Nakamura R. Retinò A. Baumjohann W. Volwerk M. Erkaev N. Klecker B. Lucek E. A. Dandouras I. André M. Khotyaintsev Y | 2009 | Annales Geophysicae2009，，221： | 1 |
| 13 | Preoperative statins and infectious complications following cardiac surgery显示文摘 | Coleman CI Lucek DM Hammond J | 2007 | Curr Med Res Opin2007，23，8： | 1 |
| 14 | All - optical clock Recovery using a mode - locked laser显示文摘 | Smith K Lucek J K | 1992 | Electronics Lett1992，28，19： | 1 |
| 15 | Designing an LNA for a CDMA front end显示文摘 | Lucek J Damen R | 1999 | RF Signal Processing1999，，： | 1 |
| 16 | Ultra-high-bit-rate networking:from the transcontinental backbone to the desktop显示文摘 | Cotter D Lucek J K Marcenac DD | 1997 | IEEE Commun Mag1997，，： | 1 |
| 17 | Designing an LNA for a CDMA front end 显示文摘 | Lucek J Damen R | 1999 | RF Design1999，22，2： | 1 |
| 18 | All-optical clock recovery using a modelocked laser显示文摘 | SMITH K LUCEK J K | 1992 | Electron Lett1992，28，19： | 1 |
| 19 | Analysis of complex traits using neural networks 显示文摘 | Bhat A Lucek PR Ott J | 1999 | Genet Epidemiol1999，17，1： | 1 |
| 20 | 基于Cluster观测对地球磁尾电流片磁场分布的初步统计分析显示文摘利用Cluster在2001~2005年期间每年6~11月4s精度的磁场数据对磁尾电流片的磁场分布特性进行了统计分析.结果表明,电流片中心处磁场及其Bz分量的强度在磁尾午夜区通常较弱,而在磁层晨、昏两侧处普遍较强,这表明午夜区的电流片较薄,而在晨、昏两侧的电流片较厚.在晨昏两侧处,电流片拍动剧烈,尤以晨侧最甚,而午夜区的电流片拍动最弱.在磁地方时21:00~01:00范围内,负Bz及扁平电流片出现的几率较大,磁重联或电流中断等活动比较容易发生.磁尾电流片中By分量和磁力线倾斜角的频次分布都近似满足正态分布,扁平电流片的出现几率约是标准电流片的1/3;而磁场强度Bmin和Bz分量则主要分布在1~10nT范围内.电流片中By分量的强度近似为1AU处行星际磁场By分量的两倍,二者的相关系数以扁平电流片尤其高,这表明电流片中By的大小和符号易受行星际By等外部因素的影响. | 戎昭金 沈超 LUCEK E BALOGH A 姚丽 | 2010 | 科学通报2010，55，9： | 0 |
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