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A study of a computational BVP for heat transfer and friction drag in magnetohydrodynamics viscous flow of a nanofluid subject to the curved surface 期刊论文  OAI收割
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING, 2021, 页码: 9
作者:  
Khan, M. Riaz;  Saleel, C. Ahamed;  Saeed, Tareq;  Allehiany, F. M.;  El-Refaey, Adel M.
  |  收藏  |  浏览/下载:18/0  |  提交时间:2022/04/02
Enormously improved CH3NH3PbI3 film surface for environmentally stable planar perovskite solar cells with PCE exceeding 19.9% 期刊论文  OAI收割
NANO ENERGY, 2018, 卷号: 48, 期号: 无, 页码: 10-19
作者:  
Yang, Yingguo;  Feng, Shanglei;  Li, Meng;  Li, Fangchao;  Zhang, Congcong
  |  收藏  |  浏览/下载:45/0  |  提交时间:2019/08/23
Research on automatic Hartmann test of membrane mirror (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang P.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
Electrostatic membrane mirror is ultra-lightweight and easy to acquire a large diameter comparing with traditional optical elements  so its development and usage is the trend of future large mirrors. In order to research the control method of the static stretching membrane mirror  the surface configuration must be tested. However  membrane mirror's shape is always changed by variable voltages on the electrodes  and the optical properties of membrane materials using in our experiment are poor  so it is difficult to test membrane mirror by interferometer and null compensator method. To solve this problem  an automatic optical test procedure for membrane mirror is designed based on Hartmann screen method. The optical path includes point light source  CCD camera  splitter and diffuse transmittance screen. The spots' positions on the diffuse transmittance screen are pictured by CCD camera connected with computer  and image segmentation and centroid solving is auto processed. The CCD camera's lens distortion is measured  and fixing coefficients are given to eliminate the spots' positions recording error caused by lens distortion. To process the low sampling Hartmann test results  Zernike polynomial fitting method is applied to smooth the wave front. So low frequency error of the membrane mirror can be measured then. Errors affecting the test accuracy are also analyzed in this paper. The method proposed in this paper provides a reference for surface shape detection in membrane mirror research. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Theory of the excitation of the vibrational mode of an adatom-substrate system under a resonant laser field 期刊论文  OAI收割
PHYSICAL REVIEW B, 2008, 卷号: 78, 期号: 12
Ma, J; Wang, EG; Zhang, ZY; Wu, BA
收藏  |  浏览/下载:27/0  |  提交时间:2013/09/23
Group Theory Analysis of Free Convective Boundary-Layer Behavior at a Stretching Surface 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 1995, 卷号: 4, 期号: 4, 页码: 229,235
Junmei Shi; Xuezi Xu; Jianren Fan; Kefa Cen
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/13
Group Theory Analysis of Free Convective Boundary-Layer Behavior at a Stretching Surface 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 1995, 卷号: 4, 期号: 4, 页码: 229,235
作者:  
Junmei Shi;  Xuezi Xu;  Jianren Fan;  Kefa Cen
  |  收藏  |  浏览/下载:19/0  |  提交时间:2013/03/13