中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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  • 2012 [33]
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NEW DETERMINATION OF THE C-13(alpha, n)O-16 REACTION RATE AND ITS INFLUENCE ON THE s-PROCESS NUCLEOSYNTHESIS IN AGB STARS 期刊论文  OAI收割
ASTROPHYSICAL JOURNAL, 2012, 卷号: 756, 期号: 2
作者:  
Guo, B.;  Li, Z. H.;  Lugaro, M.;  Buntain, J.;  Pang, D. Y.
收藏  |  浏览/下载:46/0  |  提交时间:2016/11/23
Guidelines for the use and interpretation of assays for monitoring autophagy 期刊论文  OAI收割
AUTOPHAGY, 2012, 卷号: 8, 期号: 4, 页码: 445-544
作者:  
Klionsky, Daniel J.;  Abdalla, Fabio C.
  |  收藏  |  浏览/下载:184/0  |  提交时间:2018/12/29
New determination of the astrophysical C-13(p,gamma)N-14 S(E) factors and reaction rates via the C-13(Li-7, He-6)N-14 reaction 期刊论文  OAI收割
EUROPEAN PHYSICAL JOURNAL A, 2012, 卷号: 48
作者:  
Li, Y. J.;  Li, Z. H.;  Li, E. T.;  Bai, X. X.;  Su, J.
  |  收藏  |  浏览/下载:10/0  |  提交时间:2018/07/05
Backstepping sliding mode tracking control of quad-rotor under input saturation 期刊论文  OAI收割
International Journal of Intelligent Computing and Cybernetics, 2012, 卷号: 5, 期号: 4, 页码: 515-532
作者:  
Sun Q.
收藏  |  浏览/下载:12/0  |  提交时间:2013/03/27
Hydrophilic, Upconverting, Multicolor, Lanthanide-Doped NaGdF4 Nanocrystals as Potential Multifunctional Bioprobes 期刊论文  OAI收割
Chemistry-a European Journal, 2012, 卷号: 18, 期号: 37, 页码: 11641-11646
作者:  
Wang L.;  Wang L.;  Wang L.;  Chen Y.
收藏  |  浏览/下载:9/0  |  提交时间:2013/03/27
Adaptive backstepping sliding mode trajectory tracking control for a quad-rotor 期刊论文  OAI收割
International Journal of Automation and Computing, 2012, 卷号: 9, 期号: 5, 页码: 555-560
Gong X.; Hou Z.-C.; Zhao C.-J.; Bai Y.; Tian Y.-T.
收藏  |  浏览/下载:7/0  |  提交时间:2013/03/27
Trajectory tracking control of a quad-rotor UAV based on command filtered backstepping (EI CONFERENCE) 会议论文  OAI收割
2012 3rd International Conference on Intelligent Control and Information Processing, ICICIP 2012, July 15, 2012 - July 17, 2012, Dalian, China
Gong X.; Bai Y.; Peng C.; Zhao C.; Tian Y.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
A quad-rotor unmanned aerial vehicle is an under-actuated  strong coupled nonlinear system with parameters uncertainty and unknown external aerodynamic disturbance. The trajectory tracking control system with a nested double-loops structure is designed in this paper according to the coupling characteristic between the attitude angles and translational position. A PD control algorithm is proposed in the translational outer-loop to export the desired attitude signals to the attitude inner-loop. An adaptive backstepping control algorithm is designed in the inner-loop with respect to the uncertain rotational inertia and un-modeled disturbance  while in order to reduce the computational complexity the command filtered approach is introduced into the designing procedure. And finally  the numerical simulation results are presented for the trajectory tracking stabilization of a Quad-rotor  which demonstrates the excellent performance of the proposed control system and illustrate its robustness in face of disturbance and uncertain parameters. 2012 IEEE.  
Alternating stress dynamics analysis of harmonic gear flexible wheel (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Electrical Insulating Materials and Electrical Engineering, EIMEE 2012, May 25, 2012 - May 27, 2012, Shenyang, Liaoning, China
作者:  
Li M.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
This article is the study of alternating stress of flexible wheel in harmonic gear drive system. Firstly  then  Finally  according to elasticity theory to theoretically analyze flexible wheel stress  based on the basic principle of sub-structure modal synthesis method  based on the dynamics simulation  use the software of UG  to analyze the alternating stress simulation results of flexible wheel and compare theoretical results and simulation results to come conclusion. The results show that: altering stress simulation results of flexible wheel are coincident with theoretical simulation results  PATRAN and ADAMS to carry out co-simulation  have a deeper understand the stress change trend in the drive process of flexible wheel  lay a foundation for further carrying out dynamics simulation of harmonic gear drive system. (2012) Trans Tech Publications  Switzerland.  
Trajectory tacking control of a quad-rotor based on active disturbance rejection control (EI CONFERENCE) 会议论文  OAI收割
2012 IEEE International Conference on Automation and Logistics, ICAL 2012, August 15, 2012 - August 17, 2012, Zhengzhou, China
Gong X.; Tian Y.; Bai Y.; Zhao C.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
The objective of this paper is to deal with a trajectory tracking of a Quad-rotor unmanned aerial vehicle (UAV). For the model uncertainty  the external disturbance and the coupling factor are considered  an active disturbance rejection control (ADRC) algorithm is introduced into the designing procedure. The aircraft dynamic model is proposed in this article  based on which the closed-loop control system is divided into four independent channels with the coupling factor compensated by the extended state observer (ESO). The nonlinear state error feedback (NLSEF) algorithm is designed in each channel to improve the closed-loop dynamics. In this article  the ADRC controller is expressed in the discrete form. And finally  the simulation results show that the proposed control algorithm achieves a favourable tracking performance. 2012 IEEE.  
Reliable attitude stability control of quad-rotor based on fault-tolerant approach (EI CONFERENCE) 会议论文  OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
作者:  
Gao Q.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25