维普中文期刊产品整合服务
42篇 您的检索式:作者名="Angel CA"
    题名 作者 年代 出处 被引量
1On linking climate to Chinese dynastic change: Spatial and temporal variations of monsoonal rain显示文摘The causal correlation or linkage between the East Asian Monsoon (EAM) intensity and rise/fall of Chinese dynasties recently proposed by high-resolution paleoclimate reconstructions is examined in detail. Aside from many exceptions to the correlation, both instrumental and historical climate records show strong spatial variations of rainfall on annual-to-decadal scales over eastern China. The relationship between rainfall and EAM intensity also exhibits regional disparity. These observations suggest: (1) Tak-ing paleo-proxy records from a single locality in eastern China to imply changes in drought/wetness as to affect the cultural and political history of China is fraught with uncertainty. (2) On annual-to-decadal scales, the thesis that δ18O in speleothems can be used as a proxy for the EAM strength lacks empirical underpinnings.ZHANG DeEr1, LI Hong-Chun2,3, KU Teh-Lung2,4 & LU LongHua5 1 National Climate Center, Beijing 100081, China 2 Department of Earth Sciences & Research Center of Ocean Environment and Technology, Cheng-Kung University, Tainan 70101, Taiwan, China 3 School of Geographical Sciences, Southwest University of China, Chongqing 400715, China 4 Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, USA 5 Chinese Academy of Meteorological Sciences, Beijing 100081, China 2010Chinese Science Bulletin2010,55,1:19
2Posterior gut development in Drosophila:a model system for identifying genes controlling epithelial morphogenesis显示文摘The posterior gut of the Drosophila embryo, consisting of hindgut and Malpighian tubules, provides a simple,well-defined system where it is possible to use a genetic approach to define components essential for epithelial morphogenesis.We review here the advantages of Drosophila as a model genetic organism, the morphogenesis of the epithelial structures of the posterior gut, and what is known about the genetic requirements to form these structures.In overview, primordia are patterned by expression of hierarchies of transcription factors; this leads to localized expression of cell signaling molecules, and finally, to the least understood step: modulation of cell adhesion and cell shape. We describe approaches to identify additional genes that are required for morphogenesis of these simple epithelia, particularly those that might play a structural role by affecting cell adhesion and cell shape.LENGYEL JUDITH A XUE JUN LIU (Department of Molecular, Cell and Developmental Biology University of California at Los Angeles, Los Angeles, CA USA, 90095-1606 USA) 1998Cell Research1998,8,4:5
3Time-periodic solutions of the Einstein's field equations Ⅰ:general framework显示文摘In this paper,we develop a new algorithm to find the exact solutions of the Einstein's field equations.Time-periodic solutions are constructed by using the new algorithm.The singularities of the time-periodic solutions are investigated and some new physical phenomena,such as degenerate event horizon and time-periodic event horizon,are found.The applications of these solutions in modern cosmology and general relativity are expected.KONG DeXing1 & LIU KeFeng2 1Department of Mathematics,Zhejiang University,Hangzhou 310027,China 2Department of Mathematics,University of California at Los Angeles,CA 90095,USA 2010Science China Mathematics2010,53,5:5
4Internet-based collaborative pseudo-dynamic testing of multi-span bridge structure显示文摘In this paper, the first Internet-based collaborative pseudo-dynamic testing of a multi-span bridge system in China's Mainland is presented in detail, which has been carried out by the collaboration of Hunan University (HNU), Harbin Institute of Technology (HIT) and Tsinghua University (TU) in China's Mainland, and the University of Southern California (USC) in the USA. The prototype system of Russion River Bridge at Southern California in America is illustrated. Different testing specimens, testing equipments and substructure boundary conditions at HNU and HIT laboratories are described. A network protocol platform for collaborative pseudo-dynamic testing, called NetSLab, and some function modules developed on the use of its standardized interface are introduced. Aiming at the MTS system widely used in structural testing, two approaches are presented to implement the communication interface between NetSLab and testing equipment, respectively, studied by HNU and HIT. The integrated networked testing system and collaborative testing procedures are presented. The testing results manifest that the networked collaborative testing system with powerful capability provides a testing platform with good coordination for complex models or actual structures, and achieves remote sharing of testing equipments.Dapeng Wang a, Shizhu Tiana, Xinjiang Caia, Yunlei Fan b, Yan Xiaob,c a School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China b School of Civil Engineering, Hunan University, Changsha 410082, China c Department of Civil Engineering, University of Southern California, Los Angeles, CA 90089, USA 2009Progress in Natural Science:Materials International2009,19,5:4
5Global existence of smooth solutions to two-dimensional compressible isentropic Euler equations for Chaplygin gases显示文摘In this paper we investigate the two-dimensional compressible isentropic Euler equations for Chaplygin gases. Under the assumption that the initial data is close to a constant state and the vorticity of the initial velocity vanishes, we prove the global existence of the smooth solution to the Cauchy problem for twodimensional flow of Chaplygin gases.KONG DeXing 1 , LIU KeFeng 2 & WANG YuZhu 3, 1 Department of Mathematics, Zhejiang University, Hangzhou 310027, China 2 Department of Mathematics, University of California at Los Angeles, CA 90095, USA 3 Department of Mathematics, Shanghai Jiao Tong University, Shanghai 200248, China 2010Science China Mathematics2010,53,3:4
6Time-periodic solutions of the Einstein's field equations II:geometric singularities显示文摘In this paper,we construct several kinds of new time-periodic solutions of the vacuum Einstein's field equations whose Riemann curvature tensors vanish,keep finite or take the infinity at some points in these space-times,respectively.The singularities of these new time-periodic solutions are investigated and some new physical phenomena are discovered.KONG DeXing1,LIU KeFeng2,& SHEN Ming3 1Department of Mathematics,Zhejiang University,Hangzhou 310027,China 2Department of Mathematics,University of California at Los Angeles,CA 90095,USA 3Center of Mathematical Sciences,Zhejiang University,Hangzhou 310027,China 2010Science China Mathematics2010,53,6:3
7Vitrification as an approach to cryopreservation显示文摘Fahy CM Macfarlane DR Angell CA 0,,:1
8Validity of plain films in intussusception显示文摘Hernandez JA Swischuk LE Angel CA 2004Emerg Radiol2004,10,6:1
9Phase relations and vitrification in saccharide-water solutions and the trehalose anomaly 显示文摘Green JL Angell CA 1989J Phys Chem1989,93,8:1
10Meconium obstruction in the very low birth weight premature infant 显示文摘Garza- Cox S Keeney SE Angel CA 2004Pediatrics2004,114,1:1
11Imaging of acute appen- dicitis :US as the primary imaging modality 显示文摘Hemandez JA Swischuk LE Angel CA 2005Pediatr Radiol2005,35,:1
12Vitrification as an approach to cryopreservation显示文摘Fahy GM Macfarlane DR Angel CA 0,,04:1
13Th1/Th2 cytokine expression and its relationship with tumor growth in B cell non-Hodgkin's lymphoma(NHL)显示文摘Jones EA Pringle JH Angel CA Rees RC 2002Leuk Lymphoma2002,43,6:1
14Results of a preoperative autologous blood donation program for patients undergoing elective major spine surgery显示文摘Pilar Solves Nelly Carpio Federico Moscardo Teresa Bas Carolina Ca?igral Claudia Salazar Blanca Boluda Miguel Angel Sanz 2013Transfusion and Apheresis Science2013,,:1
15Absence of Epseein-Barr viral encoded RNA (EBER) in primary cutaneous T-cell lymphoma 显示文摘Angel CA Slater DN Royds JA 1996J Pathol1996,178,:1
16Real-world Evaluation of Asthma Control and Treatment (REACT) : Findings from a national Web-based survey 显示文摘Peters SP Jones CA Affiliations Division of Allergy and Immunology Department of Pediatrics Los Angeles County and University of Southem California Medical Center Los AngelesHaselkom T 2007J Allergy ClinImmunol2007,119,6:1
17Vitrification as an approach to cryopreservation显示文摘Fahy GM Macfarlane DR Angell CA 1984Cryobiology1984,21,4:1
18Vitrification as an approach to cryopreservation 显示文摘Fahy GM MacFarlane DR Angell CA 1984Cryobiology1984,21,4:1
19Virgin olive oil reduces blood pressure in hypertensive elderly subjects显示文摘Javier S. Perona Julio Ca?izares Emilio Montero José M. Sánchez-Dom??nguez Angel Catalá Valentina Ruiz-Gutiérrez 2004Clinical Nutrition2004,,5:1
20Vitrification as an approach to cryopreservation显示文摘Fahy GM MacFarlane DR Angell CA 0,,04:1
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费