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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 发表日期：2016     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 Variation in nitrate isotopic signatures in sewage for source apportionment with urbanization: a case study in Beijing, China 期刊论文 ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2016, 卷号: 23, 期号: 22, 页码: 22871-22881 作者:  Xian, Chaofan;  Ouyang, Zhiyun;  Li, Yanmin;  Xiao, Yang;  Ren, Yufen 收藏  |  浏览/下载：15/0  |  提交时间：2017/03/24 Nitrate  Dual isotope  Sewage treatment  Source apportionment  Beijing   Relationships between river water quality and landscape factors in Haihe River Basin, China: Implications for environmental management 期刊论文 CHINESE GEOGRAPHICAL SCIENCE, 2016, 卷号: 26, 期号: 2, 页码: 197-207 作者:  Xu Huashan;  Zheng Hua;  Chen Xiaoshu;  Ren Yufen;  Ouyang Zhiyun 收藏  |  浏览/下载：16/0  |  提交时间：2017/03/24 land use  watershed management  river water quality  gradient analysis   Diatoms are better indicators of urban stream conditions: A case study in Beijing, China 期刊论文 ECOLOGICAL INDICATORS, 2016, 卷号: 60, 页码: 265-274 作者:  Chen, Xiang;  Zhou, Weiqi;  Pickett, Steward T. A.;  Li, Weifeng;  Han, Lijian 收藏  |  浏览/下载：90/0  |  提交时间：2017/03/24 Benthic diatoms  Urban stream  Urban-rural gradient  Nutrients  Indicator species  Beijing   Design of incomplete derivative fuzzy PID control system for fast-steering mirror 期刊论文 Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2016, 卷号: 9682, 页码: 96820S 作者:  Ai, Zhiwei;  Tan, Yi;  Wu, Qiongyan;  Ren, Ge;  Tan, Yufen 收藏  |  浏览/下载：33/0  |  提交时间：2018/06/14 Closed Loop Systems  Control Systems  Frequency Domain Analysis  Fuzzy Control  Manufacture  Mirrors  Optical Testing  Proportional Control Systems  Telescopes  Three Term Control Systems