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| 1 | Modelling of multi-bodies in close proximity under water waves——Fluid resonance in narrow gaps显示文摘Viscous fluid model and potential flow model with and without artificial damping force(f=-μV,μ the damping coefficient and V the local averaging flow velocity) are employed in this work to investigate the phenomenon of fluid resonance in narrow gaps between multi-bodies in close proximity under water waves.The numerical results are compared with experimental data available in the literature.The comparison demonstrates that both the viscous fluid model and the potential flow model are able to predict the resonant frequency reasonably well.However the conventional potential flow model(without artificial damping term) significantly over-predicts the wave height in narrow gaps around the resonant frequency.In order to calibrate the appropriate damping coefficient used for the potential model and make it work as well as the viscous fluid model in predicting the resonant wave height in narrow gaps but with little computational efforts,the dependence of damping coefficient μ on the body geometric dimensions is examined considering the parameters of gap width Bg,body draft D,body breadth ratio Br and body number n(n = 2,3),where Br = BB/BA for the case of two bodies(Body A and Body B) with different breadths of BA and BB,respectively.It was confirmed that the damping coefficient used for the potential flow model is not sensitive to the geometric dimensions and spatial arrangement.It was found that μ∈ [0.4,0.5] may guarantee the variation of Hg/H0 with kh to be generally in good agreement with the experimental data and the results of viscous fluid model,where Hg is the excited wave height in narrow gaps under various dimensionless incident wave frequencies kh,H0 is the incident wave height,k = 2π/L is the wave number and h is the water depth. | LU Lin1,2,TENG Bin3,CHENG Liang 4,SUN Liang5 & CHEN XiaoBo6 1 Center for Deepwater Engineering,Dalian University of Technology,Dalian 116024,China 2 State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China 3 State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China 4 School of Civil and Resource Engineering,The University of Western Australia,Crawly 6003,Australia 5 Centre for Offshore Research and Engineering,Department of Civil Engineering,National University of Singapore,117576,Singapore 6 Research Department,Bureau Veritas,Neuilly-Sur-Seine,92570,France | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，1： | 29 |
| 2 | Geometric construction of energy-minimizing Bézier curves显示文摘Modeling energy-minimizing curves have many applications and are a basic problem of Geometric Modeling.In this paper,we propose the method for geometric design of energy-minimizing B′ezier curves.Firstly,the necessary and sufficient condition on the control points for B′ezier curves to have minimal internal energy is derived.Based on this condition,we propose the geometric constructions of three kinds of B′ezier curves with minimal internal energy including stretch energy,strain energy and jerk energy.Given some control points,the other control points can be determined as the linear combination of the given control points.We compare the three kinds of energy-minimizing B′ezier curves via curvature combs and curvature plots,and present the collinear properties of quartic energy-minimizing B′ezier curves.We also compare the proposed method with previous methods on efficiency and accuracy.Finally,several applications of the curve generation technique,such as curve interpolation with geometric constraints and modeling of circle-like curves are discussed. | XU Gang 1,4,5,WANG GuoZhao 2 & CHEN WenYu 2,3 1 Institute of Graphics and Image,Hangzhou Dianzi University,Hangzhou 310018,China 2 Department of Mathematics,Zhejiang University,Hangzhou 310027,China 3 School of Computer Engineering,Nanyang Technological University,639798,Singapore 4 Galaad,INRIA Sophia-Antipolis,2004 Route des Lucioles,06902,France 5 State Key Lab of CAD & CG,Zhejiang University,Hangzhou 310027,China | 2011 | Science China(Information Sciences)2011，54，7： | 15 |
| 3 | Multi-isotopic system geochronology of low temperature eclogite from Huangzhen,Southern Dabie Terrain显示文摘Zircon U-Pb thermal ionization mass-spectrometer (TIMS) and secondary ion mass-spectrometer (SIMS) dating, mica and amphibole 40Ar-39Ar dating and mineral Sm-Nd isotopic compositions of Huangzhen low temperature eclogite and country granitic gneiss are carried out. The zircon U-Pb weighted average SIMS age is (231.6±9.7) Ma for one eclogite. The mica Ar-39Ar isochron age is (232.6±2.1) Ma and the lowest plateau age is (221.7±2.4) 40 Ma from same sample. U-Pb TIMS concordant ages from other eclogite zircons are from (221.3 ±1.4) Ma to (222.5±2.3) Ma. U-Pb SIMS low intercept age from country granitic gneiss is (221 ±35) Ma. The retrograde amphibole Ar-39Ar isochron age is (205.9±1.0) Ma. Except for mica, 40 which may contain excess Ar, all the ages represent peak and retrograde metamorphism of low 40 temperature eclogites. It is indicated that the Huangzhen low temperature eclogites differ from Xiongdian low temperature eclogites of north of the Northern Dabie Terrain in metamorphic ages. Huangzhen low temperature eclogites share one coherent HP-UHP terrain with high temperature eclogites from Southern Dabie Terrain and they may have differences in subduction depth and cooling rates during exhumation. | CHEN Daogong1, E. Deloule2, CHENG Hao1, XIA Qunke1 & WU Yuanbao1 1. School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China 2. CRPG-CNRS Nancy, 54501, France | 2004 | Science China Earth Sciences2004，47，10： | 9 |
| 4 | Absolute radiometric calibration of CBERS-02 IRMSS thermal band显示文摘Based on the laboratory calibration before launch of CBERS-02 IRMSS thermal infrared channel, the onboard blackbody calibration, the radiometric cross- calibration against TERRA MODIS corresponding channel and the in-flight field calibration at Lake Qinghai: water surface radiometric calibration test site of China on Aug. 17, 2004 are carried out in this research. When making onboard blackbody calibration of CBERS-02 IRMSS, it is necessary to understand inside structures and light path in IRMSS camera and receive and process calibration blackbody signals at normal and high temperatures. Onboard blackbody calibration results of each detector are very important to relative radiometric calibration of images processing and absolute radiometric calibration of each detector. In-flight field calibration mainly contains field experiments, obtaining synchronous images, spectrum marching and MODTRAN radiative transmi- ssion computation. Radiometric cross-calibration of CBERS-02 IRMSS thermal band against TERRA MODIS selected 6 times synchronous images of two sensors passing through Lake Qinghai and Lake Taihu from August to December, 2004 to compute the cross calibration data. Combining the in-flight field calibration and radiometric cross calibration data, the absolute radiometric calibration coefficients are calculated by the linear regression method. This new calibration model can obviously control the radiometric calibration uncertainties aroused by the single point method used in the in-flight calibration of CBERS-02 IRMSS, this kind of sensors cannot receive the cosmic background radiation. In this research, the radiometric calibration coefficients obtained through the linear regression model are 8.53 (gain, unit: DN/W m?2sr?1μm?1) and 44.92 (offset, unit: DN). | ZHANG Yong1,2,3, GU Xingfa1,3,4, YU Tao1,3, ZHANG Yuxiang5, CHEN Liangfu1,3, LI Xiaoying1,2,3, LI Xiaowen1,3 & HE Liming6 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3. The Center for National Spaceborne Demonstration, Beijing 100101, China 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 5. National Satellite Meteorological Center, Beijing 100081, China 6. State Environmental Protection Administration, Beijing 100029, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 6 |
| 5 | A LAGRANGIAN RELAXATION APPROACH FOR SUPPLY CHAIN PLANNING WITH ORDER/SETUP COSTS AND CAPACITY CONSTRAINTS显示文摘A heuristic approach is developed for supply chain planning modeled as multi-item multi-levelcapacitated lot sizing problems. The heuristic combines Lagrangian relaxation (LR) with local search.Different from existing LR approaches that relax capacity constraints and/or inventory balanceconstraints, our approach only relaxes the technical constraints that each 0-1 setup variable must takevalue 1 if its corresponding continuous variable is positive. The relaxed problem is approximatelysolved by using the simplex algorithm for linear programming, while Lagrange multipliers are updatedby using a surrogate subgradient method that ensures the convergence of the dual problem in case ofthe approximate resolution of the relaxed problem. At each iteration, a feasible solution of the originalproblem is constructed from the solution of the relaxed problem. The feasible solution is furtherimproved by a local search that changes the values of two setup variables at each time. By taking theadvantages of a special structure of the lot-sizing problem, the local search can be implemented byusing a modified simplex algorithm, which significantly reduces its computation time. Numericalexperiments show that our approach can find very good solutions for problems of realistic sizes in ashort computation time and is more effective than an existing commercial optimization code. | Haoxun CHEN Chengbin CHUIndustrial System Optimization Laboratory Technology University of Troyes, France | 2003 | Systems Science and Systems Engineering2003，12，1： | 2 |
| 6 | A novel iodide-catalyzed reduction of nitroarenes and aryl ketones with H3PO2or H3PO3:Its application to the synthesis of a potential anticancer agent显示文摘 | Wu G G Chen F X La France D | 2011 | Organic letters2011，13，19： | 1 |
| 7 | Small- molecule antagonists of the oncogenic Tcf/beta-catenin protein complex显示文摘 | LEPOURCELET M CHEN Y N FRANCE D S | 2004 | Cancer Cell2004，5，1： | 1 |
| 8 | Sustained Delivery Fluocinolone Acetonide Vitreous Inserts Provide Benefit for at Least 3 Years in Patients with Diabetic Macular Edema显示文摘 | Peter A. Campochiaro David M. Brown Andrew Pearson Sanford Chen David Boyer Jose Ruiz-Moreno Bruce Garretson Amod Gupta Seenu M. Hariprasad Clare Bailey Elias Reichel Gisele Soubrane Barry Kapik Kathleen Billman Frances E. Kane Kenneth Green | 2012 | Ophthalmology2012，，10： | 1 |
| 9 | Prevalence of Delirium with Dexmedetomidine Compared with Morphine Based Therapy after Cardiac Surgery: A Randomized Controlled Trial (DEXmedetomidine COmpared to Morphine-DEXCOM Study)显示文摘 | Yahya Shehabi Peter Grant Hugh Wolfenden Naomi Hammond Frances Bass Michelle Campbell Jack Chen | 2009 | Anesthesiology2009，，： | 1 |
| 10 | Small-molecule antagonists of the oncogenic Tcf/beta-catenin protein complex 显示文摘 | Lepourcelet M Chen Y N France D S | 2004 | Cancer Cell2004，5，1： | 1 |
| 11 | Small-molecule antagonists of the oncogenic Tcf/beta-catenin protein complex显示文摘 | Lepourcelet M chen YN France DS | 2004 | Cancer Ce112004，5，1： | 1 |
| 12 | Small molecule antagonists of the oncogenic Tcf /beta-catenin protein complex显示文摘 | Lepourcelet M Chen YN France DS | 2004 | Cancer Cell2004，5，1： | 1 |
| 13 | Small-molecule antagonists of the oncogenie Tcf/beta-catenin protein complex 显示文摘 | Lepoureelet M Chen YN France DS | 2004 | Cancer Cell2004，5，1： | 1 |
| 14 | Radiotherapy plus chemotherapy with or without surgical resection for stage III non-small-cell lung cancer: a phase III randomised controlled trial显示文摘 | Kathy S Albain R Suzanne Swann Valerie W Rusch Andrew T Turrisi Frances A Shepherd Colum Smith Yuhchyau Chen Robert B Livingston Richard H Feins David R Gandara Willard A Fry Gail Darling David H Johnson Mark R Green Robert C Miller Joanne Ley Willliam T | 2009 | The Lancet . 2009 (9687)2009，，9687： | 1 |
| 15 | Deformation mechanism of leukocyte adhering to vascular surface under steady shear flow显示文摘The adhesion of leukocytes to vascular surface is an important biomedical problem and has drawn extensive attention. In this study, we propose a compound drop model to simulate a leukocyte with a nucleus adhering to the surface of blood vessel under steady shear flow. A two-dimensional computational fluid dynamics (CFD) is conducted to determine the local distri- bution of pressure on the surface of the adherent model cell. By introducing the parameter of deformation index (DI), we investigate the deformation of the leukocyte and its nucleus under controlled conditions. Our numerical results show that: (i) the leukocyte is capable of deformation under external exposed flow field. The deformation index increases with initial contact angle and Reynolds number of external exposed flow. (ii) The nucleus deforms with the cell, and the de- formation index of the leukocyte is greater than that of the nucleus. The leukocyte is more de- formable while the nucleus is more capable of resisting external shear flow. (iii) The leukocyte and the nucleus are not able to deform infinitely with the increase of Reynolds number because the deformation index reaches a maximum. (iv) Pressure distribution confirms that there exists a region downstream of the cell, which produces high pressure to retard continuous deformation and provide a positive lift force on the cell. Meanwhile, we have measured the deformation of human leukocytes exposed to shear flow by using a flow chamber system. We found that the numerical results are well consistent with those of experiment. We conclude that the nucleus with high viscosity plays a particular role in leukocyte deformation. | LIU Xiaoheng1, WANG Xiong2, YIN Hongmei3 & CHEN Huaiqing 1 1. Institute of Biomedical Engineering, Center of West China Medical Sciences, Sichuan University, Chengdu 610041, China 2. LEMTA-UMR-CNRS 7563, Vandoeuvre-les-Nancy, France 3. West China School of Pharmacy, Sichuan University, Chengdu 610041, China | 2004 | Science China(Life Sciences)2004，47，2： | 1 |
| 16 | History of diabetes mellitus and subsequent prostate cancer risk in the NIH-AARP Diet and Health Study显示文摘 | Brook A. Calton Shih Chen Chang Margaret E. Wright Victor Kipnis Karla Lawson Frances E. Thompson Amy F. Subar Traci Mouw David S. Campbell Paul Hurwitz Albert Hollenbeck Arthur Schatzkin Michael F. Leitzmann | 2007 | Cancer Causes & Control2007，，5： | 1 |
| 17 | Small-molecule antagonists of the oncogenic Tcf/β-catenin protein complex显示文摘 | Maina Lepourcelet Ying-Nan P. Chen Dennis S. France Huisheng Wang Phillip Crews Frank Petersen Charles Bruseo Alexander W. Wood Ramesh A. Shivdasani | 2004 | Cancer Cell2004，，： | 1 |
| 18 | ARQ 197,a novel and selective inhibitor of the human c-Met receptor tyrosine kinase with antitumor aetivity显示文摘 | Munshi N Jeay S Li Y Chen C R France D S Ashwell M A | 2010 | Mol Cancer Ther2010，9，： | 1 |
| 19 | A distinct lineage of influenza A virus from bats 显示文摘 | Tong S Li Y Rivailler P Conrardy C Castillo DA Chen LM Recuenco S Ellison JA Davis CT York IA Turmelle AS Moran D Rogers S Shi M Tao Y Weil MR Tang K Rowe LA Sammons S Xu X France M Lindblade KA Cox NJ Anderson LJ Rupprecht CE Donis RO | 2012 | Proc Natl Acad Sci USA2012，109，11： | 1 |
| 20 | Experimental Study of the Differentiation of Mesenchymal stem Cells ( MSCs) after Indirect Co-culture with Ligament Fibroblasts显示文摘 | Lei ZHANG~(1,2) Xiong WANG~(2△) Huai-Qing CHEN~11(Institute of Biomedical Engineering, West China Medical Center, Sichuan University, Chengdu 610041,China)2(Equipe Mécanique et Ingénierie Cellulaire et Tissulaire, Institut National Polytechnique de Lorraine, 54500 Vandoeuvre-lès-Nancy, France) | 2005 | 生物医学工程学杂志2005，22，S1： | 1 |
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