机构

• 地理科学与资源研究所 [3]
• 长春光学精密机械与物... [1]
• 昆明植物研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [3]
• SCI/SSCI论文 [1]
• 会议论文 [1]

发表日期

• 2020 [2]
• 2019 [1]
• 2012 [2]

学科主题

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Policy provisions for agricultural development in Nepal: A review 期刊论文  OAI收割 JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 261, 页码: 10 作者:  Khanal, Narendra Raj;  Nepal, Pashupati;  Zhang, Yili;  Nepal, Govind;  Paudel, Basanta   |  收藏  |  浏览/下载：32/0  |  提交时间：2021/07/09 Agriculture development  Legislation  Plans and policies  Gaps and constraints  Central Himalayas  Nepal   Policy provisions for agricultural development in Nepal: A review 期刊论文  OAI收割 JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 261, 页码: 10 作者:  Khanal, Narendra Raj;  Nepal, Pashupati   |  收藏  |  浏览/下载：28/0  |  提交时间：2021/07/09 Agriculture development  Legislation  Plans and policies  Gaps and constraints  Central Himalayas  Nepal   Evolutionary constraints on disparity of ericaceous pollen grains 期刊论文  OAI收割 ANNALS OF BOTANY, 2019, 卷号: 123, 期号: 5, 页码: 805-813 作者:  Yu, Ying;  Schneider, Harald;  Li, De-Zhu;  Wang, Hong   |  收藏  |  浏览/下载：63/0  |  提交时间：2019/10/28 Pollen characters  development constraints  natural selection  phylomorphospace  disparity through time   Recent development of passive dynamic walking (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011, October 21, 2011 - October 23, 2011, Shanghai, China 作者:  Zhang P. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 The focus of this paper is a review on the recent development of passive dynamic walking. Passive dynamic walkers are introduced  from the simple rimless wheel to the recently developed real two legged machines. Control strategies necessary to improve the stability and robustness of locomotion of passive dynamic walkers  such as the hybrid geometric approach and the virtual constraints  are discussed briefly. Finally  the unresolved problems in the field of passive dynamic walking are summarized and directions of further developments are discussed. (2012) Trans Tech Publications  Switzerland.   Peasants' counterplots against the state monopoly of the rural urbanization process: urban villages and 'small property housing' in Beijing, China SCI/SSCI论文  OAI收割 2012 Liu R.; Wong T. C.; Liu S. H. 收藏  |  浏览/下载：37/0  |  提交时间：2012/09/04 state monopoly  rural urbanization  land-sourced-revenues  inequitable  housing distribution  informal market  illegality  land-development  market  rights  chengzhongcun  perspective  constraints  ownership  emergence  policies  reform