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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 发表日期：2017     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 Root distribution of three dominant desert shrubs and their water uptake dynamics 期刊论文 JOURNAL OF PLANT ECOLOGY, 2017, 卷号: 10, 期号: 5, 页码: 780-790 作者:  Xu, Shiqin;  Ji, Xibin;  Jin, Bowen;  Zhang, Jinglin 收藏  |  浏览/下载：41/0  |  提交时间：2019/10/09 root architecture  stem sap flow  water-use strategy  arid region  desert shrub   Controls of precipitation delta O-18 on the northwestern Tibetan Plateau: A case study at Ngari station 期刊论文 ATMOSPHERIC RESEARCH, 2017, 卷号: 189, 期号: 0, 页码: 141-151 作者:  Yu, WS (Yu, Wusheng);  Tian, LD (Tian, Lide);  Guo, XY (Guo, Xiaoyu);  Tian, LD;  Wen, R (Wen, Rong) 收藏  |  浏览/下载：23/0  |  提交时间：2018/07/10 STABLE-ISOTOPE VARIATIONS  AMERICAN TELECONNECTION CONTROLS  HOLOCENE ENVIRONMENTAL-CHANGES  CONTIGUOUS UNITED-STATES  ATMOSPHERIC WATER-VAPOR  BASIN WESTERN TIBET  SUMMER MONSOON  ICE-CORE  ASIAN MONSOON  MOISTURE TRANSPORT   Compact broadband circularly-polarised directional universal GNSS antenna with symmetric radiation pattern and stable near-zenith coverage 期刊论文 IET MICROWAVES ANTENNAS & PROPAGATION, 2017, 卷号: Vol.11 No.5, 页码: 657-663 作者:  Liu, Q;  Li, Y;  Mo, ZG;  Liu, YA 收藏  |  浏览/下载：10/0  |  提交时间：2019/12/31 satellite navigation  directive antennas  broadband antennas  antenna radiation patterns  antenna feeds  UHF antennas  power dividers  phase shifters  electromagnetic wave polarisation  compact broadband circularly-polarised directional universal GNSS antenna  symmetric radiation pattern  near-zenith coverage  CP antennas  global navigation satellite system  circular radiating patch  semisector-annulus sheets  compact broadband four-feed circuit  out-of-phase power splitter  coupled-line power dividers  broadband phase shifters  output magnitude distribution  high-precision feed signals  gain variation  CP bandwidth  symmetric patterns  street canyons  mountainous area  frequency 1  13 GHz to 2  51 GHz