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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 发表日期：2021     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Air Quality in the Harbin-Changchun Metropolitan Area in Northeast China: Unique Episodes and New Trends 期刊论文 TOXICS, 2021, 卷号: 9 作者:  Wang, Yulong;  Sun, Youwen;  Zhao, Gerong;  Cheng, Yuan 收藏  |  浏览/下载：52/0  |  提交时间：2022/02/14 particulate matter  air pollution  northeast china  spatiotemporal variations   Spatiotemporal variation and source analysis of air pollutants in the Harbin-Changchun (HC) region of China during 2014-2020 期刊论文 ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY, 2021, 卷号: 8 作者:  Wang, Yulong;  Sun, Youwen;  Zhang, Zhiqing;  Cheng, Yuan 收藏  |  浏览/下载：54/0  |  提交时间：2022/01/25 Air pollution  Spatiotemporal variations  Harbin-changchun metropolitan area  Open biomass burning   Genetic-algorithm-based deep neural networks for highly efficient photonic device design 期刊论文 Photonics Research, 2021, 卷号: 9, 期号: 6, 页码: B247-B252 作者:  Ren, Yangming;  Zhang, Linxuan;  Wang, Weiqiang;  Wang, Xinyu;  Lei, Yufang 收藏  |  浏览/下载：28/0  |  提交时间：2021/06/21 Research on time and frequency transfer during PPP convergence with parameters correlation comparison 期刊论文 MEASUREMENT, 2021, 卷号: 173, 页码: 10 作者:  Ouyang, Mingjun;  Li, Junzhi;  Li, Wanqing;  Ge, Yulong;  Zhu, Xiangwei 收藏  |  浏览/下载：27/0  |  提交时间：2021/11/29 Time frequency transfer  Precise point positioning  Convergence period  Parameter correlation  Modified Allan variance   NDVI Indicates Long-Term Dynamics of Vegetation and Its Driving Forces from Climatic and Anthropogenic Factors in Mongolian Plateau 期刊论文 REMOTE SENSING, 2021, 卷号: 13, 期号: 4, 页码: 26 作者:  Guo, Enliang;  Wang, Yongfang;  Wang, Cailin;  Sun, Zhongyi;  Bao, Yulong 收藏  |  浏览/下载：70/0  |  提交时间：2021/04/25 NDVI  climatic factors  anthropogenic factors  BFAST  Mongolian Plateau