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Phase change study of spherical phase change microcapsule 期刊论文
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2015, 卷号: 36, 期号: [db:dc_citation_issue], 页码: 1505-1509
作者:  Zhao, Yi-Meng;  Fu, Rui-Peng;  Zhang, Jia-Jie;  Qu, Zhi-Guo;  Tao, Wen-Quan
收藏  |  浏览/下载：8/0  |  提交时间：2019/12/02
A Non-Stationary Wideband Channel Model for Massive MIMO Communication Systems 期刊论文
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2015, 卷号: 14, 期号: 3, 页码: 1434-1446
作者:  Wu, Shangbin;  Wang, Cheng-Xiang;  Haas, Harald;  Aggoune, El-Hadi M.;  Alwakeel, Mohammed M.
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/17
Enhanced photocatalytic activity of BiFeO3 particles by surface decoration with Ag nanoparticles 期刊论文
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2014, 卷号: 25, 期号: 6, 页码: 2463-2469
作者:  Di, L. J.;  Yang, H.;  Hu, G.;  Xian, T.;  Ma, J. Y.
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/15
Theory and method of less-loading hydroforming 期刊论文
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2013, 卷号: 49, 期号: [db:dc_citation_issue], 页码: 99-105
作者:  Wang, Zhongren;  Yuan, Shijian;  Tang, Zejun;  Zhang, Qi
收藏  |  浏览/下载：4/0  |  提交时间：2019/12/10
Preparations and characterizations of new mesoporous ZrO2 and Y2O3-stabilized ZrO2 spherical powders 期刊论文
粉体技术, 2012
Zhang, Hui; Lu, Hu; Zhu, Yawei; Li, Fan; Duan, Renguan; Zhang, Mei; Wang, Xidong
收藏  |  浏览/下载：3/0  |  提交时间：2015/11/12
Preparation of Al2O3/Fe3Si nanocomposite powders by mechanical alloying and annealing 期刊论文
Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment, 2011, 卷号: 32, 期号: 8, 页码: 32-36
作者:  Nan, Feng;  Jia, Jian-Gang;  An, Liang;  Ma, Qin;  Guo, Tie-Ming
收藏  |  浏览/下载：23/0  |  提交时间：2020/11/14
The optical design of cubic phase plate testing system (EI CONFERENCE) 会议论文
2011 Symposium on Photonics and Optoelectronics, SOPO 2011, May 16, 2011 - May 18, 2011, Wuhan, China
Xu Y.; Lin H.; Zhu W.; Zhang Y.; Zhang X.
收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25
Computer-generated holograms (CGH) have been widely used for years in optical testing of aspheric surfaces in combination with Fizeau interferometers. With the development of diffraction optics  computer technology  and micro-processing technology  the accuracy of the CGH testing can achieve a hundredth of a wave  and the cost is reduced greatly. CGH is capable of producing an optical wavefront with any desired shape. So it is fascinating and will have good prospects to test free-form surfaces using CGH. As the CGH can create any wavefront shape  it can also be used in unsymmetrical aspherical surfaces testing. Taking the cubic surface as an example  this paper gives a method to test unsymmetrical surfaces. This paper gives the design to test a cubic surface. And the separation of the diffraction orders and the binary process of the continuous CGH phase function are discussed in detail. The alignment tolerance of the test system and the CGH fabrication tolerance are analyzed. We also present an idea using a CGH and two spherical lenses as null lens to test the cubic surface when the surface deviation is great. 2011 IEEE.  
A nanometer scale alignment method of concentric spherical mirrors based on interferometry (EI CONFERENCE) 会议论文
4th IEEE International Nanoelectronics Conference, INEC 2011, June 21, 2011 - June 24, 2011, Tao-Yuan, Taiwan
Liu Y.-J.; Tang Y.-G.; Chen S.; Xu T.; Pan M.-Z.
收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25
Effect of gimbal point displacement on optical axis pointing precision in an image seeker (EI CONFERENCE) 会议论文
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
Zhang X.; Jiang Z.; Wei Q.; Jia H.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
A concentric glass spherical dome was usually chosen as the transparent window mounted in front of the optical lens in an image seeker. However  optical ray had to change its direction when propagating through the dome due to refraction unless passing through the center of the dome  which demanded gimbal point coincide with the center of the dome exactly. In fact  gimbal point displacement could not be eliminating due to fabrication  assembly and vibration  therefore the optical axis pointing error generated. In this paper  the effect of gimbal point displacement on optical axis pointing precision in an image seeker was analyzed  and the theoretical expression of the optical axis pointing error was derived based on geometric optics  and the error dynamics was explored by numerical. Take a visible light image seeker as a case  the thickness of concentric glass spherical dome was 8mm and the inner radius was 72mm  and the optical axis pointing errors varying dynamically with the look angle and the gimbal point displacement were shown in graph. When the gimbal displacement was 0.11mm  the maximum optical axis pointing error was 0.054mrad that is equal to the instantaneous field of view (IFOV) corresponding to the camera system whose focal length was 120mm and pixel size was 6.5m. Furthermore  with the gimbal displacement increasing  the optical axis pointing error increased linearly. The analyzed results provided a theoretical basis for the displacement range  which had to be limited strictly in the gimbal design process. 2011 IEEE.  
A multi-moment transport model on cubed-sphere grid 期刊论文
International Journal for Numerical Methods in Fluids, 2011, 卷号: 67, 期号: 12, 页码: 1993-2014
作者:  Chen CG(陈春刚);  Xiao F(肖锋);  Li XL;  Yang Y(杨焱)
收藏  |  浏览/下载：24/0  |  提交时间：2012/09/20

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