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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 专题：北京大学    第一署名单位    第一作者单位    通讯作者单位     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 Agricultural drought monitoring: Progress, challenges, and prospects 期刊论文 JOURNAL OF GEOGRAPHICAL SCIENCES, 2016 Liu Xianfeng; Zhu Xiufang; Pan Yaozhong; Li Shuangshuang; Liu Yanxu; Ma Yuqi 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 agricultural drought  drought monitoring  research progress  research prospect  REMOTE-SENSING DATA  SEVERITY INDEX  SOIL-MOISTURE  UNITED-STATES  VEGETATION  WATER  STRESS  SPACE  VALIDATION  DYNAMICS   Changes in Growing Season Vegetation and Their Associated Driving Forces in China during 2001-2012 期刊论文 REMOTE SENSING, 2015 Liu, Xianfeng; Zhu, Xiufang; Li, Shuangshuang; Liu, Yanxu; Pan, Yaozhong 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 China  climate change  ecological restoration  normalized difference vegetation index  vegetation dynamics  NET PRIMARY PRODUCTION  RECENT CLIMATE-CHANGE  TERRESTRIAL ECOSYSTEMS  NORTH-AMERICA  TIME-SERIES  DROUGHT  NDVI  RESPONSES  MODIS  REDUCTION   Non-Gaussian Approximation Iterative Receiver for MIMO-OFDM Vehicular Networks 其他 2014-01-01 Han, Shuangshuang; Yang, Liuqing; Cheng, Xiang; Chen, Shichao; Zhu, Fenghua; Yu, Zhongdong; Xie, Haitao 收藏  |  浏览/下载：10/0  |  提交时间：2017/12/03 INTERFERENCE CANCELLATION  FADING CHANNELS  EQUALIZATION  ALGORITHM  SYSTEMS   Non-Gaussian Approximation Iterative Receiver for MIMO-OFDM Vehicular Networks 其他 2014-01-01 Shuangshuang Han; Liuqing Yang; Xiang Cheng; Shichao Chen; Fenghua Zhu; Zhongdong Yu; Haitao Xie 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 cancellation  Approximation  iterative  decoding  demodulation  decoder  transmit  symbol  compute  multipath  cancellation  Approximation  iterative  decoding  demodulation  decoder  transmit  symbol  compute  multipath   Broadband antireflection TiO2-SiO2 stack coatings with refractive-index-grade structure and their applications to Cu(In,Ga)Se-2 solar cells 期刊论文 solar energy materials and solar cells, 2014 Li, Dezeng; Wan, Dongyun; Zhu, Xiaolong; Wang, Yaoming; Han, Zhen; Han, Shuangshuang; Shan, Yongkui; Huang, Fuqiang 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/11 Broadband antireflection  TiO2-SiO2 stack coatings  Sol-gel dip-coating  Cu(In,Ga)Se-2 solar cells  Efficiency  BILAYER FILMS  THIN-FILMS  PERFORMANCE  SILICA  MULTILAYERS  ELIMINATION  REFLECTION  SIO2/TIO2  PROPERTY