机构

• 海洋研究所 [2]
• 地理科学与资源研究所 [1]
• 长春光学精密机械与物... [1]
• 软件研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 会议论文 [2]
• 期刊论文 [2]
• SCI/SSCI论文 [1]

发表日期

• 2020 [2]
• 2011 [1]
• 2009 [1]
• 2007 [1]

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发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 In situ Responses of the Eelgrass Zostera marina L. to Water Depth and Light Availability in the Context of Increasing Coastal Water Turbidity: Implications for Conservation and Restoration 期刊论文  OAI收割 FRONTIERS IN PLANT SCIENCE, 2020, 卷号: 11, 页码: 14 作者:  Xu, Shaochun;  Wang, Pengmei;  Wang, Feng;  Liu, Peng;  Liu, Bingjian   |  收藏  |  浏览/下载：50/0  |  提交时间：2021/04/12 seagrass meadow  depth limit  light requirement  response  methodology  reproduction  restoration  Zostera marina   Plant morphology and seed germination responses of seagrass (Zostera japonica) to water depth and light availability in Ailian Bay, northern China 期刊论文  OAI收割 MARINE ENVIRONMENTAL RESEARCH, 2020, 卷号: 162, 页码: 13 作者:  Zhang, Xiaomei;  Zhou, Yi;  Adams, Matthew P.;  Wang, Feng;  Xu, Shaochun   |  收藏  |  浏览/下载：112/0  |  提交时间：2021/04/12 Seagrass  Depth limit  Light requirement  Response  Growth cycle  Seedling recruitment  Methodology  In situ culture experiment  Restoration   Reentry guidance based on feedback linearization (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China Li D.-W. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 This paper presents a new reentry guidance algorithm for RLV (Reusable Launching Vehicle). The algorithm consists of two integrated components: trajectory planning algorithm and tracking algorithm. The most striking feature of algorithm here lies in that both planning and tracking are executed directly in height-velocity space  which is different from the methodology of configuration of drag in traditional shuttle guidance. In the session of trajectory planning  all trajectory constraints can be expressed with upper bound and lower bound in height-velocity space  then a linear interpolation is carried to search the nominal trajectory satisfying the requirement of downrange and target constraints. Then the tracking algorithm uses feedback linearization method to track this nominal profile and meet all constraints. Another typical feature of this algorithm is the strategy of downrange extension using FPA (flight path angle) controller to fulfill the requirement of large downrange. Proper combination of planning-tracking algorithm and FPA controller can bring great flexibility and adaptability to reentry guidance. The algorithm is proved to be robust enough to accommodate the model error and noises in the dynamics. 2011 IEEE.   an analysis for understanding software security requirement methodologies 会议论文  OAI收割 3rd International Conference on Secure Software Integration and Reliability Improvement, Shanghai, PEOPLES R CHINA, JUL 08-10, Du Jing; Yang Ye; Wang Qing   |  收藏  |  浏览/下载：19/0  |  提交时间：2011/03/20 Software  Security Requirement  Requirement Methodology  Literature Review and Analysis   An ecological hydraulic radius approach to estimate the instream ecological water requirement SCI/SSCI论文  OAI收割 2007 Liu C. M.; Men B. H. 收藏  |  浏览/下载：22/0  |  提交时间：2012/06/08 ecological flow  flow velocity  cross-sectional flow area  ecological  hydraulic radius (HER)  instream ecological water requirement  incremental methodology  flow  rivers