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浏览/检索结果: 共7条，第1-7条 帮助 限定条件 发表日期：2020     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 Hydrological hotspots of climatic influence in Brazil: A two-step regularization approach 期刊论文 ATMOSPHERIC RESEARCH, 2020, 卷号: 246, 页码: 17 作者:  Ndehedehe, Christopher E.;  Haile, Gebremedhin G.;  Agutu, Nathan O.;  Ferreira, Vagner G.;  Getirana, Augusto 收藏  |  浏览/下载：12/0  |  提交时间：2021/03/16 Rainfall  SPI  Drought  Support vector machine  ENSO  Brazil   Water relations and non-structural carbohydrate responses to the combined effects of defoliation and progressive drought in a dioecious tree 期刊论文 NEW FORESTS, 2020, 页码: DOI: 10.1007/s11056-020-09811-4 作者:  Zhang, Yuanbin;  Xu, Gang;  Peng, Shuming;  Bai, Jingwen;  Lu, Qi 收藏  |  浏览/下载：125/0  |  提交时间：2020/11/30 Compensatory mechanisms  Defoliation  Drought  Non-structural carbohydrate  Water relations   Spatiotemporal Variations in Drought and Wetness from 1965 to 2017 in China 期刊论文 WATER, 2020, 卷号: 12, 期号: 8, 页码: 22 作者:  Zeng, Zhaoqi;  Wu, Wenxiang;  Li, Yamei;  Zhou, Yang;  Zhang, Zhengtao 收藏  |  浏览/下载：31/0  |  提交时间：2021/03/18 China  standardized precipitation evapotranspiration index  drought  wetness  trend   Frequency synchronization based on a cascading cross-correlation function for CO-FBMC-OQAM 期刊论文 Chinese Journal of Electronics, 2020, 卷号: 29, 期号: 4, 页码: 724-730 作者:  Wang, Daobin;  Chen, Bo;  Lyu, Ningning;  Wang, Wei;  Liu, Junjie 收藏  |  浏览/下载：3/0  |  提交时间：2020/11/14 Frequency allocation  Frequency domain analysis  Quadrature amplitude modulation  Synchronization  Tunneling (excavation)  Cross-correlation function  Fractional frequency offset  Frequency offset estimation  Frequency synchronization  Frequency synchronization algorithms  Offset quadrature amplitude modulations  Residual frequency offset  Transmission performance   A Robust Game-Based Algorithm for Downlink Joint Resource Allocation in Hierarchical OFDMA Femtocell Network System 期刊论文 IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS, 2020, 卷号: 50, 期号: 7, 页码: 2445-2455 作者:  Yu, Junzhi;  Han, Song;  Li, Xinbin 收藏  |  浏览/下载：19/0  |  提交时间：2020/08/03 Resource management  Games  Robustness  Femtocell networks  Uncertainty  Interference  Downlink  Communication systems  femtocell networks  game theory  hierarchical systems  joint resource allocation   A Joint Information and Energy Cooperation Framework for CR-Enabled Macro-Femto Heterogeneous Networks 期刊论文 IEEE INTERNET OF THINGS JOURNAL, 2020, 卷号: 7, 期号: 4, 页码: 2828-2839 作者:  Xiao, Zhu;  Li, Fancheng;  Jiang, Hongbo;  Bai, Jing;  Xu, Jisheng 收藏  |  浏览/下载：17/0  |  提交时间：2020/12/10 Energy cooperation  heterogeneous networks (HetNets)  information cooperation  wireless energy transfer (WET)   Perceiving Beijing & x2019;s & x201C;City Image & x201D; Across Different Groups Based on Geotagged Social Media Data 期刊论文 IEEE ACCESS, 2020, 卷号: 8, 页码: 93868-93881 作者:  Peng, Xia;  Bao, Yi;  Huang, Zhou 收藏  |  浏览/下载：34/0  |  提交时间：2021/07/09 Urban areas  Social network services  Cultural differences  Big Data  Radio spectrum management  Text analysis  City image  geotagged data  hotspots  social media  text analysis