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浏览/检索结果: 共35条,第1-10条 帮助

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Recent progresses on designing and manufacturing of bulk refractory alloys with high performances based on controlling interfaces 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 52
作者:  
Zhang, T.;  Deng, H. W.;  Xie, Z. M.;  Liu, R.;  Yang, J. F.
  |  收藏  |  浏览/下载:49/0  |  提交时间:2020/10/26
The Structure of Hexaaluminate and Application in High-Temperature Reaction 期刊论文  OAI收割
PROGRESS IN CHEMISTRY, 2018, 卷号: 30, 期号: 12, 页码: 1992-2002
作者:  
Bian, Wen;  Ma, Xiaoxun;  Wang, Xiaodong;  Zhu, Yanyan;  Yue, Zongyang
  |  收藏  |  浏览/下载:299/0  |  提交时间:2019/06/20
The structure of hexaaluminate and application in high-temperature reaction 期刊论文  iSwitch采集
Progress in chemistry, 2018, 卷号: 30, 期号: 12, 页码: 1992-2002
作者:  
Zhu, Yanyan;  Yue, Zongyang;  Bian, Wen;  Liu, Ruilin;  Ma, Xiaoxun
收藏  |  浏览/下载:292/0  |  提交时间:2019/05/08
The performance analysis of a novel TC-Trombe wall system in heating seasons 期刊论文  OAI收割
ENERGY CONVERSION AND MANAGEMENT, 2018, 卷号: 164, 页码: 242-261
作者:  
Yu, Bendong;  Jiang, Qingyang;  He, Wei;  Hu, Zhongting;  Chen, Hongbing
  |  收藏  |  浏览/下载:41/0  |  提交时间:2020/10/29
两种杂环有机物的分子结构与其在离子液体中缓蚀、减摩抗磨性能的构效关系研究 期刊论文  OAI收割
摩擦学学报, 2016, 卷号: 36, 期号: 6, 页码: 726-735
作者:  
张松伟;  李毅;  胡丽天;  丁奇
  |  收藏  |  浏览/下载:56/0  |  提交时间:2017/12/22
4,8-Bis(thienyl)-benzo[1,2-b:4,5-b ']dithiophene based A-pi-D-pi-A typed conjugated small molecules with mono-thiophene as the pi-bridge: Synthesis, properties and photovoltaic performance 期刊论文  OAI收割
DYES AND PIGMENTS, 2015, 卷号: 120, 页码: 8
作者:  
Yin, N;  Wang, LL(王立磊);  Ma, YC(马玉超);  Lin, Y;  Wu, JC(武建昌)
收藏  |  浏览/下载:52/0  |  提交时间:2015/12/31
Structural amelioration of 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China
作者:  
Liu Y.;  Liu Y.;  Wang L.;  Wang L.;  Wang L.
收藏  |  浏览/下载:53/0  |  提交时间:2013/03/25
920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) has an important application in laser display. We constructed and optimized a 920 nm OPS-VECSEL with active region of In0.09Ga0.91As quantum well (QW) system pumped by 808 nm laser diode module. By the finite element method  self-consistent solutions of the semiconductor electronic and optical equations are realized to calculate the characteristics parameters of OPS-VECSEL. The performances of device especially the mode  the threshold and the optical-optical translation efficiency were analyzed by dealing with different number of QWs (1  2 and 3) in one period  QW depth  barrier width  the component and dimension of the non-absorption layer. We chose an improved structure of them. On this basis  we ameliorated the number of QW periods and the simulation showed that in order to obtain high performance device  the choice of the number of QW periods must be cautious. (2013) Trans Tech Publications  Switzerland.  
Studies on the synthesis, pungency and anti-biofouling performance of capsaicin analogues 期刊论文  OAI收割
SCIENCE CHINA-CHEMISTRY, 2012, 卷号: 55, 期号: 3, 页码: 435-442
作者:  
Peng BiXian;  Wang JunLian;  Peng ZhengHong;  Zhou ShengZe;  Wang FengQi
  |  收藏  |  浏览/下载:47/0  |  提交时间:2019/04/09
Lightweight design of large scale theodolite's turntable based on topology optimization of continuum structure (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者:  
Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:47/0  |  提交时间:2013/03/25
In order to solve the problem that the weight of large scale theodolite's casting or steel plate welded structure is too heavy  lightweight design of large scale turntable based on topology optimization of continuum structure is investigated. Topology optimization could have better optimization efficiency because it can provide the optimized distribution of material and gain optimized structure in conceptual design phase of the structural design. In order to obtain lightweight and high stiffness structure  a truss turntable based on topology optimization of continuum structure is presented  and the validity of this lightweight structure is examined by finite element analysis. Comparing to the traditional welding steel turntable  the lightweight turntable  without changing the static displacement  can lose 386.48 kg(lightweight ratio is 26.7%)  and its first-order natural frequency raises from 167.02Hz to 173.71Hz. Meanwhile  in other aspects this turntable also has better performance than traditional structure. 2012 IEEE.  
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:56/0  |  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.