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| 1 | 奥斯特/GPS掩星与地面雷达联合观测电离层电子密度的初步结果显示文摘1999年2月丹麦发射了一颗奥斯特小卫星,它装载了两台GPS接收机,其中一台用于电离层和中性大气掩星测量,另一台用于自主定位。本文给出了1999年10月奥斯特/GPS掩星与日本MU雷达和数字测高仪的联合观测结果。奥斯特掩星反演得到的电子密度剖面与地面雷达观测的进行了比较,结果表明:天基和地基雷达观测的电子密度是一致的。文章还给出利用GPS的单频信号反演电离层电子密度剖面技术和3维射线追踪技术模拟掩星结果。 | 张训械 P.Hoeg G.B.Larsen Stig Syndergaard Martin B.S Jakob G.R S.Fukao Kiyoshi lgarashi Seiji Kawamura | 2000 | 全球定位系统2000，25，3： | 18 |
| 2 | A strategy for designing stable nanocrystalline alloys by thermo-kinetic synergy显示文摘Aiming to design stable nanocrystalline(NC)materials,so far,it has been proposed to construct nanostructure stability maps in terms of thermodynamic parameters,while kinetic stabilization has seldom been considered,despite the synergy of thermodynamics and kinetics.Consequently,the thermodynamically stabilized NC materials may be easily subjected to grain growth at high temperatures due to the weakly kinetic stabilization.Starting from the thermo-kinetic synergy,a stabilization criterion is proposed as a function of intrinsic solute parameters(e.g.the activation energy for bulk diffusion and the segregation enthalpy),intrinsic solvent parameters(e.g.the intrinsic activation energy for GB migration and the GB energy)and processing parameters(e.g.the grain size,the temperature and the solute concentration).Using first-principles calculations for a series of combinations between fifty-one substitutional alloying atoms as solute atoms and Fe atom as fixed solvent atom,it is shown that the thermal stability neither simply increases with increasing the segregation enthalpy as expected by thermodynamic stabilization,nor monotonically increases with increasing the activation energy for bulk diffusion as described by kinetic stabilization.By combination of thermodynamic and kinetic contributions,the current stabilization criterion evaluates quantitatively the thermal stability,thus permitting convenient comparisons among NC materials involved by various combinations of the solute atoms,the solvent atoms,or the processing conditions.Validity of this thermo-kinetic stabilization criterion has been tested by current experiment results of Fe-Y alloy and previously published data of Fe-Ni,Fe-Cr,Fe-Zr and Fe-Ag alloys,etc.,which opens a new window for designing NC materials with sufficiently high thermal stability and sufficiently small grain size. | H.R.Peng B.S Liu F.Liu | 2020 | Journal of Materials Science & Technology2020，36，8： | 5 |
| 3 | 格陵兰岛的结核病危险因素:病例对照研究显示文摘背景和目的:在格陵兰岛,尽管进行了疾病控制的多方努力,但结核病发病率仍很高。1998—2007年间,平均发病率为131/10万人口。本研究的目的是揭示与结核病相关的危险因素。方法:对2004—2006年间诊断为结核病的146例患者进行病例对照研究。为每例患者选择年龄、性别相当,居住在同一地区的4名健康人作为对照。所有参与者完成有关社会人口统计学和生活方式因素的调查问卷。运用logistic回归模型进行危险因素分析。结果:与结核病相关的危险因素包括因纽特种族、生活在较小的定居点、失业、无自来水、无厕所或抽水马桶、体重不足、吸烟、经常饮酒和免疫抑制治疗。多变量模型显示,因纽特种族(OR15.3)、生活在定居点(OR5.1)、失业(OR4.1),以及经常饮酒(OR3.1)是独立的决定性危险因素。失业与最高人群归因危险度相关(29%)。结论:应对与居住在小定居点相关的危险因素做进一步探讨,而且有必要开展遗传学易感性调查。 | K.Ladefoged T.Rendal T.Skifte M.Andersson B.Sorg A.Koch 彭红 王雪静 | 2011 | 国际结核病与肺部疾病杂志2011，6，4： | 3 |
| 4 | Hemorrhage following colonoscopic polypectomy显示文摘 | Les Rosen M.D. David S. Bub B.S. James F. Reed Ph.D. Susan A. Nastasee B.S | 1993 | Diseases of the Colon & Rectum1993，，12： | 2 |
| 5 | Rice-wheat cropping system: assessment of sustainability under green manuring and chemical fertilizer inputs显示文摘 | R.L Yadav B.S Dwivedi P.S Pandey | 2000 | Field Crops Research2000，，1： | 2 |
| 6 | Reciprocity and the belief in a just world显示文摘 | Edlund J.E Sagarin B.J Johnson B.S | | 0，，03： | 1 |
| 7 | 查看详情显示文摘 | Coakley K.M Srinivasan B.S Ziebarth J.M Goh C. Liu Y | | 0，，12： | 1 |
| 8 | Inhibitory action of water soluble fraction of Terminalia chebula on systemic and local anaphylaxis显示文摘 | T.Y Shin H.J Jeong D.K Kim S.H Kim J.K Lee D.K Kim B.S Chae J.H Kim H.W Kang C.M Lee K.C Lee S.T Park E.J Lee J.P Lim H.M Kim Y.M Lee | 2001 | Journal of Ethnopharmacology2001，，2： | 1 |
| 9 | What explains the stock market's reaction to Federal Reserve policy显示文摘 | Bernanke B.S K.N.Kuttner | | 0，，03： | 1 |
| 10 | 查看详情显示文摘 | Bassil B.S Kortz U | | 0，，： | 1 |
| 11 | Mortality in patients with familial adenomatous polyposis显示文摘 | Michael L. Arvanitis M.D. Dr. David G. Jagelman M.D. Victor W. Fazio M.B. B.S. Ian C. Lavery M.B. B.S. Ellen McGannon B.S | 1990 | Diseases of the Colon & Rectum1990，，8： | 1 |
| 12 | 查看详情显示文摘 | Bassil B.S Kortz U | | 0，，： | 1 |
| 13 | Regional stress field around the Taigu fault zone in Shanxi Province,China显示文摘A comprehensive study on regional stress field around the Taigu fault zone in Shanxi Province,China,was performed in this study.To get a better understanding of the present-day stress status in this area,31 focal mechanisms of M_L≥3 earthquakes since 1965 were compiled,and the best stress tensor was then inverted based on the database.Additionally,magnetic fabrics along the Taigu fault zone were investigated to get an indication of the regional stress field in the past.Our results show that the present-day stress field around the Taigu fault zone is characterized by astable NW-SE extension with a strikeslip component,consistent with the geological surveys and recent GPS data.Results from magnetic fabrics indicate that the orientations of principal stress axes from magnetic fabrics of sedimentary rocks in Neogene coincide to the orientations of principal stress axes from focal mechanisms.The south segment of the Taigu fault displays more complicated magnetic fabrics and more activity of moderate earthquakes.It is connected with the Mianshan west fault and intersects with NW-SE striking Fenyang fault and the north fault of the Lingshi uplift at the south edge of Taiyuan basin.This may be the area needing more attention in terms of seismic risk along the Taigu fault. | Bin Li Zihong Li Mathilde B.S?rensen Reidar L?vlie Liqiang Liu Kuvvet Atakan | 2015 | Earthquake Science2015，28，5： | 1 |
| 14 | Estimating divergence times from molecular data on phylogenetic and population genetic timescales显示文摘 | Arbogast B.S Edwards S.V Wakeley J Beerli P Siowinski J.B | | 0，，： | 1 |
| 15 | Newspaper or television:Which do you believe显示文摘 | Carter R.F Greenberg B.S | | 0，，： | 1 |
| 16 | Flow and heat transfer in a viscoelastic fluid over a stretching sheet显示文摘 | Dandapat B.S Gupta A.S | | 0，，： | 1 |
| 17 | Resource and risk management in strategic alliance making process显示文摘 | Das T.K Teng B.S | | 0，，01： | 1 |
| 18 | Development and Application of a Green Fluorescent Protein Sentinel System for Identification of RNA Interference in Blastomyces dermatitidis Illuminates the Role of Septin in Morphogenesis and Sporulation显示文摘 | Krajaejun T Gauthier G.M Rappleye C.A Sullivan T.D and Klein B.S | | 0，，： | 1 |
| 19 | Consequences of organizational justice expectations in a selection system显示文摘 | Bell B.S Wiechmann D Ryan A.M | | 0，，： | 1 |
| 20 | Increase in urinary cortisol excretion and memory declines:MacArthur studies of successful aging显示文摘 | Seeman T.E McEwen B.S Singer B.H Albert M.S & Rowe J.W | | 0，，08： | 1 |
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