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	Dynamic Evaluation of Sustainable Water Resource Systems in Metropolitan Areas: A Case Study of the Beijing Megacity 期刊论文 OAI收割 WATER, 2020, 卷号: 12, 期号: 9, 页码: 19 作者: Du, Chaoyang \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2021/03/16 water resources sustainability operating mechanism dynamic evaluation Beijing
	Dynamic Evaluation of Sustainable Water Resource Systems in Metropolitan Areas: A Case Study of the Beijing Megacity 期刊论文 OAI收割 WATER, 2020, 卷号: 12, 期号: 9, 页码: 19 作者: Du, Chaoyang \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2021/03/16 water resources sustainability operating mechanism dynamic evaluation Beijing
	Operating mechanism and set pair analysis model of a sustainable water resources system SCI/SSCI论文 OAI收割 2015 作者: Du C. Y.; Yu, J. J.; Zhong, H. P.; Wang, D. D. 收藏 \| 浏览/下载：41/0 \| 提交时间：2015/12/09 sustainable water resources system operating mechanism set pair analysis model Shanghai vulnerability population impacts
	A design on a control method of a new type of focal plane shutter (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Xue L.; Ming L.; Zheng L.-N.; Zhou J.-F.; Zhang H.-W.; Zhang J.-C. 收藏 \| 浏览/下载：33/0 \| 提交时间：2013/03/25 In order to ensure appropriate exposure time and no exposure while electric charge is transferring after taking a photograph it is necessary to have the shutter mechanism cooperate with CCD for area CCD aerial cameras. The ground object illumination has a wide range which is from 4000Lx to 100000Lx so a shutter which is high efficient and a continuous stepless adjustment are also required. This paper introduces the fundamental principle structural design and control procedure about this new focal plane shutter. Under the control of DSP the velocity of shutter curtain governed by the shutter motor can be not only precisely controlled but also the durability and the reliability are increased. The experiment results have shown that this new shutter has the higher stability of movement long life span with more than 105 operating times a wide range of exposure time from1/ 50s to 1/ 320s(depending on the slit width)and the exposure error is less than 10%. With the CCD gain adjustment the performance of this shutter is fully satisfied with the requirements of area CCD aerial cameras. 2010 IEEE.
	Design and implementation of control system software based on VxWorks multi-tasks (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: Li Y.; Li Y.; Li Y.; Li Y. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 This article fist introduces an embedded real-time operating system VxWorks and its multi-tasks mechanism. Combining the requirements of the control system which needs to complete the engineering tasks and multi-task real-time it gives serial port driver and design of application layer. It proposes a multiple-task model and a method of task-scheduling. It also offers the detailed artifice of measurement under the pc104 hardware and the results showed that multitask to meet the multi-task and real-time. It has a good practical application. 2010 IEEE.
	Research on the airborne communication and navigation apparatus ATE system based on the virtual instrument (EI CONFERENCE) 会议论文 OAI收割 2008 Pacific-Asia Workshop on Computational Intelligence and Industrial Application, PACIIA 2008, December 19, 2008 - December 20, 2008, Wuhan, China Zijing Z.; Zhongbao X.; Yanbin S. 收藏 \| 浏览/下载：73/0 \| 提交时间：2013/03/25 The airborne communication and navigation (CN) apparatus ATE system is the important apparatus for measure the working state and performance of the CN automatically and quickly. It has explained the composition of the ATE system based on the virtual instrument the bus structure and signal recuperated in this paper. The ATE System adopts platformization fault diagnosis thought the fault diagnose mechanism and logic are designed by the users which is an organic whole realized the fault diagnoses and the maintain means coordination. System is interchangeable and upgradeable on operating system special-purpose tester and the testing program is portable between the different ATE. Indicate by the practice the airborne CN apparatus ATE system have good military and economic benefits. 2008 IEEE.
	多策略适应的一种POSIX权能遗传算法期刊论文 OAI收割通信学报, 2006, 卷号: 27, 期号: 2, 页码: 66-72 沈晴霓; 卿斯汉; 贺也平; 沈建军 \| 收藏 \| 浏览/下载：22/0 \| 提交时间：2010/08/23 操作系统安全权能机制权能遗传算法最小特权 operating system security capability mechanism capability inheritance algorithm least privilege