机构

• 长春光学精密机械与物... [1]
• 寒区旱区环境与工程研... [1]
• 中国科学院大学 [1]
• 生态环境研究中心 [1]

采集方式

• iSwitch采集 [2]
• OAI收割 [2]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2017 [2]
• 2009 [1]
• 2007 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Patch size of trees affects its cooling effectiveness: A perspective from shading and transpiration processes 期刊论文  OAI收割 AGRICULTURAL AND FOREST METEOROLOGY, 2017, 卷号: 247, 期号: 0, 页码: 293-299 作者:  Zhou, Weiqi;  Zheng, Zhong;  Wang, Jia;  Qian, Yuguo;  Jiao, Min   |  收藏  |  浏览/下载：34/0  |  提交时间：2018/07/20 Greenspace Patch Size  Cooling Effect  Humidification Effect  Edge Effect  Shading  Transpiration   Comparison of different algorithms for calculating the shading effects of topography on solar irradiance in a mountainous area 期刊论文  iSwitch采集 ENVIRONMENTAL EARTH SCIENCES, 2017, 卷号: 76, 期号: 7, 页码: 16 作者:  Zhang, Yanlin;  Chang, Xiaoli;  Liang, Ji 收藏  |  浏览/下载：50/0  |  提交时间：2019/10/09 Topographic shading effect  Sky view factor  Solar irradiance  Terrain  Solar insolation duration   Nonlinear feature of the abrupt transitions between multiple equilibria states of an ecosystem model 期刊论文  iSwitch采集 Advances in atmospheric sciences, 2009, 卷号: 26, 期号: 2, 页码: 293-304 作者:  Sun Guodong;  Mu Mu 收藏  |  浏览/下载：36/0  |  提交时间：2019/05/10 Nonlinear feature  Abrupt transition  Grassland and desert ecosystem  Shading effect   Narcissus analysis for cooled staring IR system (EI CONFERENCE) 会议论文  OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China 作者:  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 Narcissus can have a deleterious effect on image quality for cooled infrared imaging systems. Therefore  analysis of narcissus is important for designing both scanning and staring optics. Narcissus is generally assumed to be negligible in staring IR optical designs because the shading effects can be removed by calibration of the detector array data. However  the calibration usually decreases sensitiveness of the system and Narcissus variation may be noticeable for sensors when the conditions changes as follows: 1. warming and cooling the optical housing  2. zooming optical elements  3. movement of lenses for focus. In that case  it will result in shading and other image defects even after calibration. To minimize these effects  narcissus should be assessed and controlled during the design of staring array IR system. We provided a direct and fast method for analyzing the narcissus variation in the presence of software such as LightTools  TracePro and ASAP  and proposed the principles in optical design of staring IR systems to reduce narcissus. A cooled staring IR system with serious narcissus was estimated and reoptimized. Narcissus analysis of this IR system confirmed the efficiency of the analysis method.