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Coulombic effects on resolution of ion mobility spectrometry and its application in online qualitative analysis 期刊论文  OAI收割
ANALYTICA CHIMICA ACTA, 2021, 卷号: 1183, 页码: 7
作者:  
Zhang, Genwei;  Peng, Silong;  Yang, Jie;  Cao, Shuya;  Huang, Qibin
  |  收藏  |  浏览/下载:66/0  |  提交时间:2021/11/03
Novel Design for Centrifugal Counter-Current Chromatography: VI. Ellipsoid Column 期刊论文  OAI收割
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES, 2015, 卷号: 38, 期号: 1, 页码: 68-73
作者:  
Gu, DY (Gu, Dongyu);  Yang, Y (Yang, Yi);  Xin, XL (Xin, Xuelei);  Aisa, HA (Aisa, Haji Akber);  Ito, Y (Ito, Yoichiro)
收藏  |  浏览/下载:30/0  |  提交时间:2015/03/11
Design of high speed and parallel compression system used in the big area CCD of high frame frequency (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Precision Engineering and Non-Traditional Machining, PENTM 2011, December 9, 2011 - December 11, 2011, Xi'an, China
作者:  
Li G.-N.;  Jin L.-X.;  Zhang R.-F.;  Wang W.-H.;  Li G.-N.
收藏  |  浏览/下载:51/0  |  提交时间:2013/03/25
According to the area CCD camera of characteristics  such as high resolution capacity and high frame frequency  this paper puts forward a high speed and parallel image compression system of high integration degree. Firstly  according to the work principle of the area CCD  FPGA is adopted to realize the timing driving and multichannel and parallel analog signal handling to raise the export frame frequency of the area CCD. Secondly  with an image compression scheme based on FPGA embedded processor MicroBlaze and ADV212 compression chip  real time image compression and the high speed area CCD are realized. Finally  by detecting the analog signal of the area CCD output  the real time compression of the big area CCD image is carried out in different compression ratios and the compression performance is analyzed. Experiment result shows that this scheme can realize real time image compression with the biggest data rate of 520Mbps. When compression bit ratio is 0.15  the signal-to-noise ratio of peak value can reach 36 dB. Image collection and image compression are integrated  which reduces the data transmission between them and improves systematic integration degree.  
NOVEL DESIGN FOR CENTRIFUGAL COUNTERCURRENT CHROMATOGRAPHY: IV. FIGURE-8 COLUMN 期刊论文  OAI收割
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES, 2010, 卷号: 33, 期号: 4, 页码: 572-584
作者:  
Gu Dongyu;  Yang Yi;  Eng Jennifer D.;  Aisa Haji Akber
收藏  |  浏览/下载:23/0  |  提交时间:2012/11/29
NOVEL DESIGNS FOR CENTRIFUGAL COUNTERCURRENT CHROMATOGRAPHY: V. COMPARATIVE STUDIES ON PERFORMANCE OF VARIOUS COLUMN CONFIGURATIONS 期刊论文  OAI收割
Journal of Liquid Chromatography and Related Technologies, 2010, 卷号: 33, 期号: 16, 页码: 1542-1549
作者:  
Yang Yi;  Gu Dongyu;  Aisa Haji Akber;  Ito Yoichiro
收藏  |  浏览/下载:27/0  |  提交时间:2012/11/29
Resolution performance of extreme ultraviolet telescope (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Yang L.;  Chen B.;  Chen B.;  Liang J.-Q.;  Ni Q.-L.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
Extreme Ultraviolet Telescope (EUT) will image solar corona in four EUV narrow bandpasses defined by multilayered coatings deposited on normal incidence optics. In order to make sure it will get sub-arcsecond angular resolution in the mission we have to test its resolution performance on ground. The EUT is aligned by Zygo interferometer first and a global wavefront error of 0.152 peak to valley is obtained ( = 632.8nm ). Because of the difficulty of angular resolution test for EUT at its operating wavelengths  we test its optical performance at visible and UV band. The method is to place the resolution test-target on the focal plane of collimator and illuminate the target by visible and UV light espectively  then the collimated light will go through EUT and image at focal plane on CCD. By analysis of the images obtained in experiments we conclude that the angular resolution of EUT is 1.22 at visible light ( = 570nm ) which is very close to diffraction limit (1.20) and according to these results we estimate that the operational wavelength resolution is better than 0.32  meets design requirements. While for UV light  the angular resolution is 1.53 that is different from diffraction limit (0.53)  the error comes mainly from large pixel of EUV camera. 2009 SPIE.