中国科学院机构知识库网格系统: 检索

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	Taking Action on Air Pollution Control in the Beijing-Tianjin-Hebei (BTH) Region: Progress, Challenges and Opportunities 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2018, 卷号: 15, 期号: 2, 页码: 27 作者: Wang, Li; Zhang, Fengying; Pilot, Eva; Yu, Jie; Nie, Chengjing \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2019/05/30 air pollution Beijing-Tianjin-Hebei air pollution prevention and control action plan semi-structured interview
	Taking Action on Air Pollution Control in the Beijing-Tianjin-Hebei (BTH) Region: Progress, Challenges and Opportunities 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2018, 卷号: 15, 期号: 2, 页码: 27 作者: Wang, Li; Zhang, Fengying; Pilot, Eva; Yu, Jie; Nie, Chengjing \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2019/05/30 air pollution Beijing-Tianjin-Hebei air pollution prevention and control action plan semi-structured interview
	Simulating the impact of watershed management for surface water quality protection: A case study on reducing inorganic nitrogen load at a watershed scale SCI/SSCI论文 OAI收割 2014 作者: Zhang Z. 收藏 \| 浏览/下载：38/0 \| 提交时间：2014/12/24 Surface water quality SWAT model Filter strips Control plan China critical source areas nonpoint-source pollution vegetative filter strips diffuse pollution riparian buffer river-basin sediment swat phosphorus china
	Research of programming about the level flight of aircraft (EI CONFERENCE) 会议论文 OAI收割 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China 作者: Lijiang 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 In order to carries on the plan and the control to aircraft level flight then obtain that the factors control the level route are the route position and the radius of turn finally carries on the software simulation using this algorithm the attitude and the route has been analyzed. First obtain that the factors control the level attitude are the roll angle and the yaw angle and infers the algorithm of flight route according to the attitude and the route restraint and infers the computation algorithm of attitude produce shortest aircraft level flight road map which through the giving route position on the software surface. According to this algorithm it may control and plan the aircraft level flight through to limit of the aircraft security attitude and the route position. 2010 IEEE.
	Innovative EDL GNC scheme for precise and safe mars landing missions (EI CONFERENCE) 会议论文 OAI收割 60th International Astronautical Congress 2009, IAC 2009, October 12, 2009 - October 16, 2009, Daejeon, Korea, Republic of 作者: Liu Y.; Zhang L.; Zhang L.; Liu Y.; Liu Y. 收藏 \| 浏览/下载：44/0 \| 提交时间：2013/03/25 Future mars missions plan to land the more massive spacecrafts on the higher altitude and hazardous region the landers should have the capability of high-precision autonomous navigation guidance and control (GNC) and automatic obstacle detection and avoidance to explore the scientific but hazardous region. The traditional deep space network (DSN) based GNC mode used in the Mars entry descent and landing (EDL) phase has no ability to meet this goal so the novel EDL GNC scheme is required to achieve the precise and safe Mars landing. This paper proposes the innovative Mars EDL GNC system scheme and the emphases are focused on the EDL navigation guidance and control with high landing accuracy and autonomous obstacle detection and avoidance.
	A study of the jacking system for ferroalloy electric furnace electrode based on linear motor controlling (EI CONFERENCE) 会议论文 OAI收割 9th International Conference on Electronic Measurement and Instruments, ICEMI 2009, August 16, 2009 - August 19, 2009, Beijing, China Peng X.; Jiwei Z. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 The current jacking system for the hydraulic electric furnace electrode in Jilin Ferroalloy Factory is adopted the hand control in electrode jacking plan against this situation a structure which can adapt the linear stepping motor to control the digital valve for adjusting the location of the hydraulic system has been raised and the current system would realize automatic control to the electrode jacking by this way at the same time and by Fuzzy-PID control method the linear stepping motor would be controlled to obtain precise positioning in control. The hydraulic system controlled by digital valve have been described and analyzed in jacking feasibility and stability. What's more it is inspected and verified that the adjustment of this system has high precision and quick response. 2009 IEEE.