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    题名 作者 年代 出处 被引量
1Preliminary study of a dot immunogold filtration assay for rapid detection of anti-HCV IgG显示文摘INTRODUCTIONHepatitisCisaworldwideepidemicdiseasestemmingfromthehepatitisCvirus(HCV).HCVisnotonlythepathogenicfactorofhepati...XIAO Le Yi 1, YAN Xiao Jun 1, MI Ming Ren 2, HAN Feng Chan 1 and HOU Yu 1 1999World Journal of Gastroenterology1999,5,4:7
2Threading dislocation density comparison between GaN grown on the patterned and conventional sapphire substrate by high resolution X-ray diffraction显示文摘GaN epifilms are grown on the patterned sapphire substrates (PSS) (0001) and the conventional sapphire substrates (CSS) (0001) by metal-organic chemical vapor deposition (MOCVD) using a novel two-step growth. High resolution X-ray diffraction (HR-XRD) is used to investigate the threading dislocation (TD) density of the GaN epifilms. The TD density is calculated from the ω-scans full width at half maximum (FWHM) results of HR-XRD. The edge dislocation destiny of GaN grown on the PSS is 2.7×108 cm-2, which is less than on the CSS. This is confirmed by the results of atomic force microscopy (AFM) measurement. The lower TD destiny indicates that the crystalline quality of the GaN epifilms grown on the PSS is improved compared to GaN epifilms grown on the CSS. The residual strains of GaN grown on the PSS and CSS are compared by Raman Scattering spectra. It is clearly seen that the residual strain in the GaN grown on PSS is lower than on the CSS.ZHANG YuChao1, XING ZhiGang2, MA ZiGuang2, CHEN Yao2, DING GuoJian2, XU PeiQiang2, DONG ChenMing3, CHEN Hong2 & LE XiaoYun1 1 School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100190, China 2 Renewable Energy Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 3 School of Information and Communication, Tianjin Polytechnic University, Tianjin 300160, China 2010Science China(Physics,Mechanics & Astronomy)2010,53,3:5
3A new dynamic formula for determining the coefficient of Smagorinsky model显示文摘The most common method to determine the coefficient of Smagorinsky model now is to employ the Germano identity,however it is too complex and expensive in numerical calculation. In this letter we propose a new dynamic formula for determining the coefficient,which is based on the Kolmogorov equation of filtered velocity in physical space.The simplified formula is quite easy to implement in calculation.It is then verified in both homogeneous isotropic turbulence and wall-bounded turbulence by A Priori and A...Le Fang~(1,2,a)) 1)Laboratoire International Associe,Beihang University,Beijing 100191,China 2)China and LMFA-CNRS,Universite de Lyon,Ecole Centrale de Lyon,UCBL,INSA Lyon,69134 Ecully, France 2011Theoretical & Applied Mechanics Letters2011,1,3:4
4Solar release time of solar energetic particles and associated acceleration source in corona显示文摘Solar energetic particles (SEPs) are accelerated in corona at an early phase of solar energetic particle events (SEPE). The acceleration mechanism of SEPs in corona can only be inferred from an analysis of multi-band observational data, as the observation of SEPs is usually made around 1AU. In this context, people have investigated spectrums, charge state, solar release time (SRT), and multi-band data of SEPEs, in an attempt to judge the acceleration mechanism of SEPs. The SRT computation of SEPs is an important and commonly used approach to study the acceleration mechanism of SEPs in corona. This paper reviews some important findings concerning the SRT computation of SEPs, and analyzes different merits of each approach for such calculation, based on a range of SEPE case studies. This paper also analyzes and discusses both possible and actual acceleration mechanisms of a number of SEPEs, by calculating the SRT of the SEPEs. Finally, the paper summarizes the possible problems in studying an acceleration mechanism of SEPEs inferred from the SRT of SEP.LE GuiMing1,2,3,4, TANG YuHua1 & HAN YanBen4 1 Department of Astronomy, Nanjing University, Nanjing 210093, China 2 Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration, Beijing 100081, China 3 National Center for Space Weather, China Meteorological Administration, Beijing 100081, China 4 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2008Chinese Science Bulletin2008,53,2:2
5A comparative analysis on two solar proton events显示文摘This paper presents a comparative analysis on the two Solar Proton Events (SPE), which occurred on 14 July 2000 (Bastille Day) and 28 October 2003 (28OCT03) respectively. It is found that although the peak flux of the latter seemed to be greater than that of the former based on geostationary observations, the maximum intensities of the energetic protons (>10 MeV and 30 MeV) during the Bastille Day event were all higher than those of the 28OCT03 event according to the interplanetary observations. Further analysis indicated that the quantity of the seed particles, which could be accelerated to the energies exceeding 10 and 30 MeV by the Coronal Mass Ejection (CME)-driven shock on 14 July 2000, was far larger than that of the 28OCT03 event. In the Bastille Day case, when the CME approached to the height around 14 R⊙, the CME-driven shock would reach its maximum capacity in accelerating the solar en- ergetic protons (>100 MeV). In contrast, on 28 October 2003, when CME approached to the height about 58R⊙, the CME-driven shock reached its highest potential in accelerating the solar energetic protons of the same category. At this moment, the peak flux (>100 MeV) was about 155 pfu, which was much lower than 355 pfu measured on 14 July 2000. This demonstrated that in the Bastille Day event, the quantity of the seed particles, which could be accelerated to the energy beyond 100 MeV, was significantly larger than its counterpart in the 28OCT03 case. Therefore, the peak flux of an SPE event depends not only on the interplanetary intensity of the solar energetic particles, but also on the velocity of the associated CME-driven shock, and the quantity of the seed particles as well as on the interplanetary magnetic en- vironment. This paper also reveals that the magnetic sheath associated with ICME on 28 October 2003 captured a large number of solar energetic protons, including those having energy greater than 100 MeV.LE GuiMing1,2,3,4, HAN YanBen2 & ZHANG YiJun3 1 Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration, Beijing 100081, China 2 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 3 Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing 100081, China 4 National Center for Space Weather, China Meteorological Administration, Beijing 100081, China 2007Chinese Science Bulletin2007,52,1:2
6Abdominal manifcstat-ions in chirdhood - onset systemic lupus enythematosus 显示文摘RICHER O ULINSKI T LEMEI LE 1 2007Ann Rheum DiS2007,66,2:1
7Trout oestrogen receptor sensitivity to xenobiotics as test-ed by different boassays 显示文摘 1 Pascale Le Goffa Jcan- Pierre Cravcdi b 1999Aquaculture1999,,177:1
8Hemorrhage increases cytokine expression in lung mononuclear cells in mice:involvement of catecholamines in nuclear factor-kappa B regulation and cytokine expression显示文摘Le Tulzo 1 Shenkar R Kaneko D 2003Clin Invest2003,99,7:1
9An analysis of interplanetary sources of geomagnetic storm during November 7-8, 1998显示文摘We analyzed the properties of the solar wind appeared during November 7–8, 1998. Results show that the spaceship ACE spotted a shock (hereinafter referred to as the first shock) at 07:33 UT, November 7. The sheath appeared from the first shock to 22:00 UT November 7. A magnetic cloud-like (MCL) was observed during the period from 22:00 UT November 7 to 11:50 UT, November 8. Another shock was observed at 04:19 UT, November 8 (the second shock). It is apparent that the second shock has entered the rear part of the MCL (MCL_2), though the former part of the MCL (MCL_1) was not affected by the second shock. The main phase of the geomagnetic storm is split into three steps for the convenience of SYM-H index analysis. Step 1 covers the period from the sudden storm commence (SSC) at 08:15 UT, November 7 to the moment of 22:44 UT, November 7. Step 2 starts from 22:44 UT, November 7 and ends at 04:51 UT, November 8. The last step runs from 04:51 UT, November 8 to 06:21 UT, November 8. Step 2 has played a key role in the main development phase of the geomagnetic storm. Analysis of the solar wind properties associated with the main phase shows that the three steps in the main phase have sheath, MCL_1, and MCL_2 as their respective interplanetary source. Specifically, the sheath is covered by the solar wind data from 07:33 UT to 22:00 UT, November 7, MCL1 by the solar wind data from 22:00 UT, November 7 to 04:19 UT November 8, and MCL_2 by the solar wind data from 04:19 UT to 05:57 UT, November 8. MCL_1 had a strong and long lasting so UTh directed magnetic field, allowing it to play a key role in the development of the main phase. MCL_2 made a much smaller contribution to the main development phase, compared with MCL_1.LE GuiMing1,2,3, TANG YuHua1, ZHENG Liang5 & LIU LianGuang4 1 Department of Astronomy, Nanjing University, Nanjing 210093, China 2 National Center for Space Weather, China Meteorological Administration, Beijing 100081, China 3 Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), Beijing 100081, China 4 North China Electric Power University, Beijing 102206, China 5 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 2010Chinese Science Bulletin2010,55,9:1
10Alzheimer disease in theUS population : prevalence estimates using the 2000 census 显示文摘Hebert LE Scherr PA Bienias LL et a 1 2003Arch Neurol2003,60,:1
11Preventionof osteoporosis by pulsed electromagnetic fields显示文摘〔1〕 Rubin CT Mcleod KJ Lanyon LE 1989J Bone Joint1989,,:1
12Interleukinl7 producing CDd + effeetor T cells develop via a lineage distinct from the T helper type 1 and 2 li- neages显示文摘Harrington LE Hatton RD Mangan PR et a 1 2005Nat Imnmnol2005,6,11:1
13Prospective multicentric randomized phase III study of imatinib in patients vdth advanced gas- trointestinal stromal tumors comparing interruption versus continuation of treatment beyond 1 year:the French Sarcoma Group显示文摘Blay JY Le Cesne A Ray-Coquard 1 2007J Clin Oncol2007,25,9:1
14Endogenous present in the Persson nitric exhaled rabbits, guinea pigs 显示文摘Gustafsson LE Leone AM MG et oxide air of humans a is 1 1991Biochem Biophys Commun1991,181,:1
15Characterization of Cast AISi(Cu) Alloys by Scanning Kelvin Probe Force Microscopy显示文摘Fratila-Apachitei LE Apachitei 1 Duszczyk J 2006Electrochimica Acta2006,51,:1
16Fas and Fas Ligand in embryos and adult mice: ligand expression in several immuneprivilledged tissues and coexpression in adult tissues characterized by apoptotic cell turnover显示文摘French LE Hahne M Viard 1 1996J Cell Biol1996,133,2:1
17Living in a paradox--wom- en's experiences of body and lifo-world after meningioma surgery 显示文摘Wenstr6m 1 Eriksson LE Ebbeskog B 2012J Adv Nuts2012,68,3:1
18Emergence of a new lagovirus related to rabbit haemorrhagic disease virus显示文摘LE GALL-RECULI~ G LAVAZZA S MARCHANDEAU A e t a 1 2013Vet Res2013,44,:1
19Making the most of supplier relationships显示文摘Gadde LE Snehota 1 0,,04:1
20Discontinuation of imatinib in patients with advanced gastrointestinal stromal tumours after 3 years of treatment: an open-label multicentre randomised phase 3 trial显示文摘LE CESNE A RAY-COQUARD 1 BUI BN 2010Lancet Oncol2010,11,10:1
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