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229篇 您的检索式:作者名="S.W."
    题名 作者 年代 出处 被引量
1SEASONAL AND DIURNAL VARIATIONS OF PM_(1.0),PM_(2.5) AND PM_(10) IN THE ROADSIDE ENVIRONMENT OF HONG KONG显示文摘PM1.0 (fine particles, with diameter < 1 μm), PM2.5 (fine particles, with diameter < 2.5 μm) and PM10 (coarse particles, with diameter < 10 μm) were measured at 24-hour intervals near a high-traffic road in Hong Kong, from October 2004 to September 2005. Mass concentrations were determined for the three particle fractions, averaging for PM1.0, PM2.5 and PM10, respectively, 44.5±18.4, 55.4±25.5 and 81.3±37.7 μg?m-3. PM2.5 was 3.7 times the U.S. EPA’s annual NAAQS of 15 μg?m-3. Overall, PM1.0 accounted for 44 to 69% (average 57%) of PM10, while PM2.5 accounted for 58 to 82% (average 71%) in this study. The particulate masses showed obvious seasonal patterns with high concentrations in cold seasons and low in warm seasons, especially high concentrations of PM2.5-10 during the cold seasons. Diurnal variations of mass concentrations of PM2.5 were determined during July, showing two major peaks in the morning and afternoon rush hours.K.F. Ho S.C. Lee S.W. Law 2006China Particuology2006,4,6:15
2Sequential and Concomitant Therapy With Four Drugs Is Equally Effective for Eradication of H pylori Infection显示文摘Deng–Chyang Wu Ping–I. Hsu Jeng–Yih Wu Antone R. Opekun Chao–Hung Kuo I.–Chen Wu Sophie S.W. Wang Angela Chen Wen–Chun Hung David Y. Graham 2010Clinical Gastroenterology and Hepatology2010,,1:7
3根据循证医学方法将血清钠指标加入终末期肝病模型Biggins S.W. KimW.R. Terrault N.A. 纪泛扑 2006世界核心医学期刊文摘(胃肠病学分册)2006,0,10:6
4MODELING OF CONTROLLED THERMO-MECHANICAL PROCESSING OF TUBES FOR ENHANCED MANUFACTURING AND PERFORMANCE显示文摘An integrated mathematical model to simulate seamless tube rolling processes has been developed at The Timken Company. The model is capable of simulating the thermal, deformation and microstructure evolution in the piercing, elongating and reducing/sizing and the austenite decomposition in the mill annealing and cooling operations. Finite difference schemes are employed to model cooling, reducing/sizing and stretch reducing, and finite-element schemes are employed to simulate piercing and elongating. The model predicts the thermal history, deformation, rolling load, torque, recrystallization and grain growth in hot tube rolling, austenite decomposition in cooling or annealing, and the final structure-properties. In this paper mathematical models which are employed to describe the thermal, deformation and microstructure evolution along with the modeling results are presented. The developed 'tube rolling mill in the computer' provides a powerful tool for engineers for product and process development, process control, process optimization and quality control.D. Jin E. D. Dominik R. V. Kolarik II J. E. Ives and E. B. Damm (The Timken Company, 1835 Dueber Avenue, S.W., Canton, Ohio 44706-0932, U.S.A.) 2000Acta Metallurgica Sinica(English Letters)2000,13,2:5
5Bone Marrow-Derived Myofibroblasts Contribute to the Mesenchymal Stem Cell Niche and Promote Tumor Growth显示文摘Michael Quante Shui Ping Tu Hiroyuki Tomita Tamas Gonda Sophie S.W. Wang Shigeo Takashi Gwang Ho Baik Wataru Shibata Bethany DiPrete Kelly S. Betz Richard Friedman Andrea Varro Benjamin Tycko Timothy C. Wang 2011Cancer Cell2011,,2:4
6溴夫定及伐西洛韦对免疫功能正常的带状疱疹患者的急性症状及慢性疼痛疗效的随机、双盲及多中心对照研究Wassilew S.W. 牛新武 2005世界核心医学期刊文摘(皮肤病学分册)2005,0,7:4
7三维矿床的计算机构模方法显示文摘现在,新一代增强了的计算机三维构模软件使得从矿床的地质解释到矿山设计和采矿作业能够精确地用图形表示。尽管三维块段构模技术在采矿业中已使用多年,但新的软件系统使采矿作业的精度、可理解程度和经济性提高到了前所未有的新水平。S.W.赫尔丁 龙子芳 1989国外金属矿山1989,,3:3
8信号设计:用于无线通讯、密码学及雷达的良好关联显示文摘本书主题可以回溯到1202年由里昂纳多·皮萨诺著的《算盘的书》一书中。书中包括了关于兔子繁殖的问题,它引出了线性递推fn+1=fn+fn-1 for n≥2,f1=f2=1和费波那契数列。而相关性则是对两个现象之间相似性或者相关性的测量。近年来人们对于具有良好相关性质的序列,以及建立在这些序列基础之上的通讯信号的兴趣骤然增加。除了雷达与声纳应用之外,其它重要的应用还包括密码学和安全系统应用,以及对移动和无线通讯码多分址访问(CDMA)信号应用。事实上第3代(3G)蜂窝式电话的标准是建立在CDMA的基础之上的,它使用了本书中描述的相关性信号。S.W.戈洛蒙(著) 龚广(著) 胡光华 2007国外科技新书评介2007,,2:3
9Upper bound limit analysis using discontinuous velocity fields显示文摘S.W. Sloan P.W. Kleeman 1995Computer Methods in Applied Mechanics and Engineering1995,,1:2
10Influence of rolling temperature on the microstructure and mechanical properties of Mg–Gd–Y–Zn–Zr alloy sheets显示文摘C. Xu M.Y. Zheng K. Wu E.D. Wang G.H. Fan S.W. Xu S. Kamado X.D. Liu G.J. Wang X.Y. Lv 2013Materials Science & Engineering A2013,,:2
11You Look All Right to Me: Compromised Nutritional Status in Paediatric Patients With Ulcerative Colitis显示文摘Rebecca J. Hill Peter S.W. Davies 2013Journal of Pediatric Gastroenterology and Nutrition2013,,4:2
12Sequential and Concomitant Therapy With Four Drugs Is Equally Effective for Eradication of H pylori Infection显示文摘Deng–Chyang Wu Ping–I. Hsu Jeng–Yih Wu Antone R. Opekun Chao–Hung Kuo I.–Chen Wu Sophie S.W. Wang Angela Chen Wen–Chun Hung David Y. Graham 2010Clinical Gastroenterology and Hepatology2010,,1:2
13A review of the causes of poor fertility in high milk producing dairy cows显示文摘S.W. Walsh E.J. Williams A.C.O. Evans 2011Animal Reproduction Science2011,,3:2
14Tensile behavior of bulk nanocrystalline aluminum synthesized by hot extrusion of ball-milled powders显示文摘H.J. Choi S.W. Lee J.S. Park D.H. Bae 2008Scripta Materialia2008,,10:2
15Characterisation of the cold metal transfer (CMT) process and its application for low dilution cladding显示文摘C.G. Pickin S.W. Williams M. Lunt 2010Journal of Materials Processing Tech2010,,3:2
16Investigation of the benefits of plasma deposition for the additive layer manufacture of Ti–6Al–4V显示文摘F. Martina J. Mehnen S.W. Williams P. Colegrove F. Wang 2012Journal of Materials Processing Tech2012,,6:2
17A Global Terrestrial Monitoring Network Integrating Tower Fluxes, Flask Sampling, Ecosystem Modeling and EOS Satellite Data显示文摘S.W. Running D.D. Baldocchi D.P. Turner S.T. Gower P.S. Bakwin K.A. Hibbard 1999Remote Sensing of Environment1999,,1:2
18Sliding wear of titanium nitride thin films deposited on Ti–6Al–4V alloy by PVD and plasma nitriding processes显示文摘D. Nolan S.W. Huang V. Leskovsek S. Braun 2005Surface & Coatings Technology2005,,20:2
19Microwave heating applications in environmental engineering—a review显示文摘D.A. Jones T.P. Lelyveld S.D. Mavrofidis S.W. Kingman N.J. Miles 2002Resources Conservation & Recycling2002,,2:2
20THERMAL STABILITY OF NON-EQUILIBRIUS MICROSTRUCTURE IN MICROALLOYED STEEL DURING REHEATING显示文摘Cooled in water after isothermal relaxation of deformed austenite for different times, an Nb-bearing microalloyed steel always exhibits synthetic microstructures, in which bainitic ferrite dominates. Dislocation configurations and distributions of strain induced precipitates inside bainitic ferrite of samples relaxed for different times were distinct. When compared with the austenite model steel, which maintained fcc structure even at room temperature, the strain induced precipitates were not found in the sample without relaxation whereas these were distributed outside dislocations in sample relaxed for 1000s. Most of the strain induced precipitates distribute along dislocations and pin dislocations in sample relaxed for appropriate time. After bainitic transformation, the dislocations formed in deformed austenite remain to be pinned by the precipitates. When these samples were reheated to and held at 650 or 700℃, the non-equilibrious microstructures tended to evolve into equilibrious ones. The sample relaxed for 60s displayed the highest thermo-stability, whereas microstructure evolution was the quickest in the sample relaxed for 1000s even though it was the softest prior to reheating. Dislocations inside laths got rid of pinning of precipitates, and their polygonization became the precursor to the evolution of microstructures during reheated and held, followed by gradual disappearance of lath boundaries caused by dislocation climbing. Finally, recrystallization occurred and polygonal ferrite appeared. By hardness measurement, it was found that softening is not a single process occurring during reheated, in which hardness fluctuates with time. There were two peaks in the hardness-time curve of each sample having undergone relaxation, while single peak occured in the curve of the sample not being relaxed. These results indicated that the thermo-stability of microstructures was determined by their history of formation to a considerable degree.H.B. Wu H.T. Jiang S.W. Yang D. Tang X.L. He 2007Acta Metallurgica Sinica(English Letters)2007,20,5:2
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