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| 1 | Theoretical analyses and numerical experiments of variational assimilation for one-dimensional ocean temperature model with techniques in inverse problems显示文摘In the present work, the data assimilation problem in meteorology and physical oceanography is re-examined using the variational optimal control approaches in combination with regularization techniques in inverse problem. Here the estimations of the initial condition, boundary condition and model parameters are performed simultaneously in the framework of variational data assimilation. To overcome the difficulty of ill-posedness, especially for the model parameters distributed in space and time, an additional term is added into the cost functional as a stabilized functional. Numerical experiments show that even with noisy observations the initial conditions and model parameters are recovered to an acceptable degree of accuracy. | HUANG Sixun1,2, HAN Wei1 & WU Rongsheng2 1. P. O. Box 003, Nanjing 211101,China 2. Key Laboratory of Meso-Scale Severe Weather /MOE, Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China Correspondence should be addressed to Huang Sixun | 2004 | Science China Earth Sciences2004，47，7： | 18 |
| 2 | 聚合物抛光垫修整和抛光的研究显示文摘通过试验了解聚合物抛光垫的修整和抛光原理,分别用尼龙、聚碳酸酯和聚氨酯在含3%氧化铝颗粒的抛光液中与铜销对磨,测定修整后的抛光垫的表面性能,测量抛光试验中抛光垫的磨损和摩擦因数。结果表明,聚碳酸酯和聚氨酯抛光垫的接触角随表面粗糙度的增大而增大,尼龙则趋向于相反的规律;修整后的表面粗糙度对尼龙和聚碳酸酯抛光垫磨损机制的影响要大于对聚氨酯抛光垫磨损机制的影响;之前的研究表明,在化学机械抛光过程中,摩擦会引起材料的转移,在研究中,更进一步地考察了修整和抛光过程中材料转移的效应;与尼龙和聚碳酸酯相比,聚氨酯的化学、材料和摩擦学性能更为稳定。这使得聚氨酯成为化学机械抛光中较独特的材料。 | G. Xu P. Severs R. Dinsmore S. Meurer H. Liang 朱丽娜(译) 康嘉杰(译) 王海斗(校) | 2008 | 中国表面工程2008，21，3： | 5 |
| 3 | Validation of a technique using microbubbles and contrast enhanced ultrasound (CEUS) to biopsy sentinel lymph nodes (SLN) in pre-operative breast cancer patients with a normal grey-scale axillary ultrasound显示文摘 | K. Cox A. Sever S. Jones J. Weeks P. Mills H. Devalia D. Fish P. Jones | 2013 | European Journal of Surgical Oncology2013，，7： | 1 |
| 4 | Validation of a technique using microbubbles and contrast enhanced ultrasound (CEUS) to biopsy sentinel lymph nodes (SLN) in pre-operative breast cancer patients with a normal grey-scale axillary ultrasound显示文摘 | K. Cox A. Sever S. Jones J. Weeks P. Mills H. Devalia D. Fish P. Jones | 2013 | European Journal of Surgical Oncology2013，，7： | 1 |
| 5 | First-in-man safety evaluation of renal denervation for chronic systolic heart failure: Primary outcome from REACH-Pilot study显示文摘 | Justin E. Davies Charlotte H. Manisty Ricardo Petraco Anthony J. Barron Beth Unsworth Jamil Mayet Mohamad Hamady Alun D. Hughes Peter S. Sever Paul A. Sobotka Darrel P. Francis | 2012 | International Journal of Cardiology2012，，： | 1 |
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