中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共9条，第1-9条

帮助

条数/页：排序方式：
	Radial variations in xylem sap flow and their effect on wholetree water use estimates 期刊论文 OAI收割 HYDROLOGICAL PROCESSES, 2015, 卷号: 29, 期号: 2015, 页码: 4993-5002 作者: He,QY(He,Qiuyue)[1]; Zhang,JG(Zhang,Jianguo)[1,2,6]; Shi,WY(Shi,Weiyu)[3]; Otsuki,K(Otsuki,Kyoichi)[4]; Yamanaka,N(Yamanaka,Norikazu)[5] \| 收藏 \| 浏览/下载：34/0 \| 提交时间：2018/11/13 Granier-type Thermal Dissipation Probes (Tdp) Sap Flow Sapwood Annuli Radial Variation Ring-porous And Nonporous Wood Anatomy Water Use Estimate
	How can Populus euphratica cope with extremely dry growth conditions at 2,800 m a.s.l. on the northern Tibetan Plateau? SCI/SSCI论文 OAI收割 2013 Liang E. Y.; Ren P.; Zhang S. B.; Shao X. M.; Eckstein D. 收藏 \| 浏览/下载：30/0 \| 提交时间：2014/12/24 Populus euphratica Tree ring Climate/growth relationships Highest distribution Desert Northern Tibetan Plateau tree-rings precipitation variation snowmelt runoff radial growth river-basin china climate perspectives temperature qinghai
	Process-based modeling analyses of Sabina przewalskii growth response to climate factors around the northeastern Qaidam Basin SCI/SSCI论文 OAI收割 2011 作者: Xu Y.; Xu Y. 收藏 \| 浏览/下载：31/0 \| 提交时间：2012/06/08 northeastern Qaidam Basin Sabina przewalskii physiological process Vaganov-Shashikin model tibetan plateau precipitation variation radial growth tree-growth temperature alaska sensitivity qinghai rings
	Temperature gradients effect on surface test with high precise interferometer (EI CONFERENCE) 会议论文 OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China 作者: Gu Y.-Q.; Yang H.-J.; Sui Y.-X.; Zhang J.; Zhang J. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 In high precise surface testing temperature stability and uniformity are of paramount importance to the high accuracy of test results. Micro-temperature variation and temperature gradients not only cause the change of the air refractive index and lead to the optical path variation in interferometer cavity but also result in deformation of the tested surface itself which always brings about errors to the test results. Temperature effects on the interferometer cavity and the tested surface are analyzed from the axial and radial directions in this letter. Temperature model of the interferometer cavity and the tested lens are established and quantitative calculations and diagram of test results versus temperature and lens dimension are provided. It shows that temperature gradients effect increase with the length of the interferometer and the dimension of the tested lens. The interferometer cavity is mainly affected by radial temperature gradients while the tested lens is mainly affected by the axial temperature gradients. 2010 Copyright SPIE - The International Society for Optical Engineering.
	Growth variation in Abies georgei var. smithii along altitudinal gradients in the Sygera Mountains, southeastern Tibetan Plateau 期刊论文 OAI收割 TREES-STRUCTURE AND FUNCTION, 2010, 卷号: 24, 期号: 2, 页码: 363-373 作者: Liang EY(梁尔源) 收藏 \| 浏览/下载：30/0 \| 提交时间：2011/05/04 TREE-RING CHARACTERISTICS FAGUS-SYLVATICA L. RADIAL GROWTH TEMPERATURE RECONSTRUCTION PRECIPITATION VARIATION CLIMATIC VARIABILITY NORTHWESTERN CHINA PICEA-CRASSIFOLIA QINGHAI PROVINCE TATRA MOUNTAINS
	Growth variation in Abies georgei var. smithii along altitudinal gradients in the Sygera Mountains, southeastern Tibetan Plateau SCI/SSCI论文 OAI收割 2010 作者: Xu Y.; Xu Y. 收藏 \| 浏览/下载：30/0 \| 提交时间：2012/06/08 Tree-ring Growth variation Abies georgei var. smithi Altitudinal gradients Sygera Mountains Southeastern Tibetan Plateau tree-ring characteristics fagus-sylvatica l. radial growth temperature reconstruction precipitation variation climatic variability northwestern china picea-crassifolia qinghai province tatra mountains
	Optimization procedure for design of heliostat field layout of a 1MWe solar tower thermal power plant (EI CONFERENCE) 会议论文 OAI收割 Solid State Lighting and Solar Energy Technologies, November 12, 2007 - November 14, 2007, Beijing, China 作者: Zhang H.; Zhang H. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 A procedure for designing and optimizing heliostat field layout of solar tower thermal power plant is developed. The ray tracing is used for the calculation of the optical efficiency of field. The mathematical theory of the calculation is derived. The parametric search algorithm which allows variation of the field parameters within a specified range is used for the optimization of field. The field layout is made automatically according to the no-blocking loss condition and the heliostats are located at the positions where the annual incident cosine value is higher. In this way the blocking and cosine losses are lowered. Because the optimization of the distance between fore-and-aft two rows of heliostat is avoided the computer time is reduced effectively. Using this procedure the heliostat field of a 1MWe solar tower power plant was designed. Four modes of layout including North-South cornfield North-South stagger Radial cornfield and Radial stagger were experimented and optimized respectively. The comparison of the field efficiency for the four optimized results was made. It is concluded that the North-South cornfield layout is the optimal decision for the 1MWe solar tower power plant.
	Topography- and species-dependent growth responses of Sabina przewalskii and Picea crassifolia to climate on the northeast Tibetan Plateau 期刊论文 OAI收割 FOREST ECOLOGY AND MANAGEMENT, 2006, 卷号: 236, 期号: 2-3, 页码: 268-277 作者: Liang EY(梁尔源) 收藏 \| 浏览/下载：17/0 \| 提交时间：2010/05/25 TREE-RING CHRONOLOGIES RADIAL GROWTH PINUS-SYLVESTRIS PRECIPITATION VARIATION BOREAL FOREST FRENCH ALPS ABIES-ALBA TEMPERATURE QINGHAI SPRUCE
	Topography- and species-dependent growth responses of Sabina przewalskii and Picea crassifolia to climate on the northeast Tibetan Plateau SCI/SSCI论文 OAI收割 2006 作者: Huang L.; Huang L. 收藏 \| 浏览/下载：38/0 \| 提交时间：2012/06/08 climate response Sabina przewalskii Picea crassifolia tree rings topographic aspect Northeast Tibetan Plateau tree-ring chronologies radial growth pinus-sylvestris precipitation variation boreal forest french alps abies-alba temperature qinghai spruce