机构

• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [1]
• 生态环境研究中心 [1]
• 植物研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [3]
• SCI/SSCI论文 [1]
• 会议论文 [1]

发表日期

• 2024 [1]
• 2022 [2]
• 2015 [1]
• 2009 [1]

学科主题

• Ecology [1]

筛选

浏览/检索结果: 共5条，第1-5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 Accurate prediction of spatial distribution of soil potentially toxic elements using machine learning and associated key influencing factors identification: A case study in mining and smelting area in southwestern China 期刊论文  OAI收割 JOURNAL OF HAZARDOUS MATERIALS, 2024, 卷号: 478, 页码: 135454 作者:  Li, Kai;  Guo, Guanghui;  Zhang, Degang;  Lei, Mei;  Wang, Yingying   |  收藏  |  浏览/下载：14/0  |  提交时间：2024/09/19 Potentially toxic elements  Machine learning  Predictive accuracy  SHAP analysis  Relative importance analysis   glmm.hp: an R package for computing individual effect of predictors in generalized linear mixed models 期刊论文  OAI收割 JOURNAL OF PLANT ECOLOGY, 2022, 卷号: 15, 期号: 6, 页码: 1-6 作者:  Lai, Jiangshan;  Zou, Yi;  Zhang, Shuang;  Zhang, Xiaoguang;  Mao, Lingfeng   |  收藏  |  浏览/下载：22/0  |  提交时间：2023/02/02 coefficient of determination  commonality analysis  fixed effect  GLMM  hierarchical partitioning  marginal R-2  relative importance  variance partitioning   Generalizing hierarchical and variation partitioning in multiple regression and canonical analyses using the rdacca.hp R package 期刊论文  OAI收割 METHODS IN ECOLOGY AND EVOLUTION, 2022, 卷号: 13, 期号: 4, 页码: 782-788 作者:  Lai, Jiangshan;  Zou, Yi;  Zhang, Jinlong;  Peres-Neto, Pedro R.   |  收藏  |  浏览/下载：10/0  |  提交时间：2024/03/07 averaging over orderings  CCA  commonality analysis  constrained ordination  db-RDA  explained variation  RDA  relative importance   Spatiotemporal Characteristics, Determinants and Scenario Analysis of CO2 Emissions in China Using Provincial Panel Data SCI/SSCI论文  OAI收割 2015 作者:  Wang S. J.;  Fang, C. L.;  Li, G. D. 收藏  |  浏览/下载：45/0  |  提交时间：2015/12/09 carbon-dioxide emissions  greenhouse-gas emissions  unit-root tests  energy-consumption  economic-growth  decomposition analysis  impact  factors  stirpat model  cointegration analysis  relative importance   Optical system of large relative aperture and wide field using aspheric corrector for detecting (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者:  Zhang J.;  Zhang J.;  Zhang J.;  Wang J. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 The magnitude requirement of space target detecting determines that the image of detecting telescope should have several performances: small spots  the wider field of view  small 80% encircled energy diameter and good MTF(Modulation transfer function). So the aperture and field of view of optical system have some demands accordingly. The larger aperture  the more extensive range which the telescope searches. Now most of ground telescopes whose apertures are from 500mm to 1000mm is on-axis optical system  the more energy that telescope collects and higher magnitude the telescope detects  so wide field of view becomes the most importance problem. To obtain large relative aperture and wide field of view  the paper introduces a catadioptric telescope with small aperture aspheric refractive corrector  whose conic surface will be used to remove the aberrations due to large relative aperture and wide field of view. As to the optical system  there is only one aspheric refractive corrector  and it is relatively easy for manufacturing because of its concave figure and normal material. The paper gives the example  and optimizes this optical system with ZEMAX program. And then the paper provides a specific analysis program for testing the aspheric refractive corrector. The aperture of this optical system is 750mm  and its relative aperture is 0.82  and the field of view is 3.6 diameter(diagonal). Its structure is simple and the image quality is also very good. 2009 SPIE.