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	An innovative computer design for modeling forest landscape change in very large spatial extents with fine resolutions 期刊论文 OAI收割 ECOLOGICAL MODELLING, 2011, 卷号: 222, 期号: 15, 页码: 2623-2630 作者: Zhang, Yangjian; Yang, Jian; Shifley, Stephen R.; Thompson, Frank R.; He, Hong S. \| 收藏 \| 浏览/下载：12/0 \| 提交时间：2019/06/04 Forest Landscape Model Simulation Extent Data Structure Scaling Landis Pro
	An innovative computer design for modeling forest landscape change in very large spatial extents with fine resolutions SCI/SSCI论文 OAI收割 2011 作者: Yang J. 收藏 \| 浏览/下载：22/0 \| 提交时间：2012/06/08 Forest landscape model Simulation extent Data structure Scaling LANDIS PRO missouri ozarks ecological processes relative importance vegetation change climate-change fire simulation management scale patterns
	Influence of spatial temperature distribution on high accuracy interferometric metrology (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: Yang H.; Zhang J.; Zhang J.; Zhang J.; Yan F. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 We calculate the influence of temperature change on the refractive index of air establish a model of air temperature distribution and analyze the effect of different temperature distribution on the high accuracy interferometric metrology. First a revised Edlen formula is employed to acquire the relation between temperature and refractive index of air followed by introducing the fixed temperature gradient distribution among the spatial grid within the optical cavity between the reference flat and the test flat of the Fizeau interferometer accompanied by a temperature change random function within each grid. Finally all the rays through the air layer with different incident angles are traced by Matlab program in order to obtain the final output position angle and OPD for each ray. The influence of different temperature distribution and the length of the optical cavity in on the testing accuracy can be analyzed through the RMS value that results from repeatable rays tracing. As a result the horizontal distribution (vertical to optical axis) has a large effect on the testing accuracy. Thus to realize the high accuracy figure metrology the horizontal distribution of temperature must be rigorously controlled as well as to shorten the length of the optical cavity to a large extent. The results from our simulation are of great significant for the accuracy analysis of interferometric testing and the research of manufacturing a interferometer. 2010 Copyright SPIE - The International Society for Optical Engineering.
	Dynamic simulation and analysis of Microtus fortis migration in Dongting Lake region during flood based on remote sensing and GIS 会议论文 OAI收割 2008 Proceedings of Information Technology and Environmental System Sciences: Itess 2008, Vol 3, Beijing Ren, Yuhuan; Liu, Yalan; Wei, Chengjie; Zhang, Longqi; Yan, Shouyong 收藏 \| 浏览/下载：14/0 \| 提交时间：2014/12/07 Dongting Lake Microtus fords remote sensing GIS waterbody extent extraction migration simulation