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浏览/检索结果: 共8条,第1-8条 帮助

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Sulfide mineral dissolution microbes: Community structure and function in industrial bioleaching heaps 期刊论文  OAI收割
GREEN ENERGY & ENVIRONMENT, 2019, 卷号: 4, 期号: 1, 页码: 29-37
作者:  
Jia, Yan;  Tan, Qiaoyi;  Sun, Heyun;  Zhang, Yupeng;  Gao, Hongshan
  |  收藏  |  浏览/下载:21/0  |  提交时间:2020/03/24
Full Time Discharge Simulation and Plasma Profile Control for CFETR 期刊论文  OAI收割
JOURNAL OF FUSION ENERGY, 2016, 卷号: 35, 期号: 2, 页码: 440-445
作者:  
Wang, Rongfei;  Yang, Jinhong;  Wang, Weihua;  Shi, Bo;  Han, Jiajia
收藏  |  浏览/下载:28/0  |  提交时间:2017/07/21
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:31/0  |  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.  
A spherical catadioptric telescope system based on Cooke corrector group (EI CONFERENCE) 会议论文  OAI收割
Novel Optical Systems Design and Optimization XII, August 3, 2009 - August 4, 2009, San Diego, CA, United states
作者:  
Zhang J.;  Liu W.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
To obtain a number of advantages in fabrication  testing and alignment  many designs in which spherical mirrors replace classical Cassegrain-form aspheric mirrors are present in the literature. However  spherical mirrors suffer from substantial spherical aberration and thereby require some form of corrector group. But in this case  the question encountered is that of making the basic optical configuration more complex. In this paper  a new design based on Cooke corrector group is presented for eliminating spherical aberration  which is believed to provide higher performance with less complexity than previous approaches. Besides  the cost and fabrication period will be extremely decreased. The telescope system using corrector group here can achieve good optical performance with f# of 10  full field of 0.5  obscuration of 1/3 and MTF (Modulation Transfer Function) of 0.48 corresponding to 50@lp/mm. 2009 Copyright SPIE - The International Society for Optical Engineering.  
Breaking the Mirror: pH-Controlled Chirality Generation from a meso Ligand to a Racemic Ligand 期刊论文  OAI收割
Chemistry-a European Journal, 2009, 卷号: 15, 期号: 4, 页码: 989-1000
L. Zhang, J. Zhang, Z. J. Li, Y. Y. Qin, Q. P. Lin and Y. G. Yao
收藏  |  浏览/下载:24/0  |  提交时间:2012/11/06
Breaking the Mirror: pH-Controlled Chirality Generation from a meso Ligand to a Racemic Ligand 期刊论文  OAI收割
Chemistry-a European Journal, 2009, 卷号: 15, 期号: 4, 页码: 989-1000
L. Zhang, J. Zhang, Z. J. Li, Y. Y. Qin, Q. P. Lin and Y. G. Yao
收藏  |  浏览/下载:25/0  |  提交时间:2012/11/06
qscm: engineering qos in web-based software configuration management system 会议论文  OAI收割
IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT 2006), Hong Kong, PEOPLES R CHINA, DEC 18-22,
Wang Xiuli; Wang Yongji; Zhou Hui
  |  收藏  |  浏览/下载:23/0  |  提交时间:2011/07/28
Reconfigurable manufacturing: A response to turbulent changes 会议论文  OAI收割
IFAC Symposium on Manufacturing, Modeling, Management and Control (MIN 2000), RION, GREECE, July 12-14, 2000
作者:  
Wang CE(王成恩)
收藏  |  浏览/下载:25/0  |  提交时间:2012/06/06