中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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Liquid-Phase and Ultrahigh-Frequency-Acoustofluidics-Based Solid-Phase Synthesis of Biotin-Tagged 6 '/3 '-Sialyl-N-Acetylglucosamine by Sequential One-Pot Multienzyme System 期刊论文  OAI收割
CATALYSTS, 2020, 卷号: 10, 期号: 11, 页码: 12
作者:  
Gong, Mengge;  Li, Tiechuan;  Wu, Lina;  Zhang, Zhenxing;  Ren, Lishi
  |  收藏  |  浏览/下载:51/0  |  提交时间:2021/03/29
One-pot solvothermal synthesis of Fe/Fe3O4 composites with broadband microwave absorption 期刊论文  OAI收割
JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 卷号: 803, 页码: 818-825
作者:  
Wang, Xiaolei;  Geng, Qiyao;  Shi, Guimei;  Xu, Ge;  Yu, Jin
  |  收藏  |  浏览/下载:24/0  |  提交时间:2021/02/02
One-pot solvothermal synthesis of Fe/Fe3O4 composites with broadband microwave absorption 期刊论文  OAI收割
JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 卷号: 803, 页码: 818-825
作者:  
Wang, Xiaolei;  Geng, Qiyao;  Shi, Guimei;  Xu, Ge;  Yu, Jin
  |  收藏  |  浏览/下载:25/0  |  提交时间:2021/02/02
An analog modulated simulation source for X-ray pulsar-based navigation 期刊论文  OAI收割
acta physica sinica, 2013, 卷号: 62, 期号: 11
作者:  
Zhou Feng;  Wu Guang-Min;  Zhao Bao-Sheng;  Sheng Li-Zhi;  Song Juan
收藏  |  浏览/下载:28/0  |  提交时间:2015/06/09
Interferometric array assessment: Investigating UV coverage and imaging 会议论文  OAI收割
4th International Congress on Image and Signal Processing, CISP 2011, Shanghai, China, 2011-10-15
作者:  
Zhang YX(张远修);  Wang M(汪敏);  Lin J(林隽)
收藏  |  浏览/下载:17/0  |  提交时间:2016/04/08
Delta-sigma modulation for direct digital frequency synthesis 期刊论文  iSwitch采集
Ieee transactions on very large scale integration (vlsi) systems, 2009, 卷号: 17, 期号: 6, 页码: 793-802
作者:  
Yang, Dayu;  Dai, Fa Foster;  Ni, Weining;  Yin, Shi;  Jaeger, Richard C.
收藏  |  浏览/下载:36/0  |  提交时间:2019/05/12
Super-resolved imaging system with oversampling technology (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Zhang X.;  Wang L.-J.;  Wang L.-J.;  Zhang J.-P.;  Liu Y.
收藏  |  浏览/下载:61/0  |  提交时间:2013/03/25
It has been a significant issue in the imaging filed to provide the highest possible resolution of an electro-optical imaging system(E-O imaging system). CCD arrays are inherently undersampled and spatial frequency above Nyquist frequency is distorted so as to create ambiguity and Moire patterns for targets imaged by E-O system.. As to this drawback  a system-design project is introduced and discussed in the paper. It's well known that many image quality metrics are linked to MTF. However  CCDs don't satisfy MTF condition  namely  the shift-invariant property  so MTF synthesis can't appraise the whole system simply by the MTF product of the few sub-system ones in E-O imaging system. Then it is depicted how to solve this problem in the following. Finally the analyses and comparisons of the imaging performance parameters with and without super-resolved technologies are shown.  
Image compression based on biorthogonal wavelet transform (EI CONFERENCE) 会议论文  OAI收割
ISCIT 2005 - International Symposium on Communications and Information Technologies 2005, October 12, 2005 - October 14, 2005, Beijing, China
作者:  
Gao Y.;  Liu H.;  Liu H.;  Liu H.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
A method for image compression of biorthogonal wavelet transform based on lifting scheme with SPIHT (Set Partitioning In Hierachical Trees) is proposed in this paper. Wavelet transform affords wide space for image coding algorithms because of its excellent space-frequency localization characterizations. The compact supported  symmetrical and biorthogonal wavelet has linear phase  so it is applied on image compression area widely. The lifting scheme is an efficient method for constructing the wavelet filter after multiresolution. Under the condition of biorthogonal  biorthogonal wavelet base can be constructed freely according to the wavelet performance. And it can quicken the implementation speed of the wavelet transform. Analyzing the algorithm of lifting scheme is applying for constructing biorthogonal wavelet. Experimental results indicate that the method of the biorthogonal wavelet that has good performances with SPIHT is applying for image compression  so as image synthesis performs well. 2005 IEEE.