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浏览/检索结果: 共7条,第1-7条 帮助

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An artificial compound eye of photon Sieves 期刊论文  OAI收割
OPTICS AND LASER TECHNOLOGY, 2015, 卷号: 74, 页码: 93-96
作者:  
Jiang, Wenbo;  Hu, Song;  He, Yu;  Bu, Yun
收藏  |  浏览/下载:21/0  |  提交时间:2015/09/21
Refrigerant capacity and utilization ratio in NaZn13-type La-Fe-Si compounds 期刊论文  OAI收割
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2013, 卷号: 331, 页码: 183
Dong, QY; Zhang, HW; Chen, J; Shen, J; Sun, JR; Shen, BG
收藏  |  浏览/下载:22/0  |  提交时间:2014/01/16
MAC protocol with dynamic priority adjustment for light trail networks (EI CONFERENCE) 会议论文  OAI收割
Network Architectures, Management, and Applications VIII, December 8, 2010 - December 12, 2010, Shanghai, China
作者:  
Fang W.;  Li S.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
Differences in Growth and Potassium-Use Efficiency of Two Cotton Genotypes 期刊论文  OAI收割
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 2011, 卷号: 42, 期号: 2, 页码: 132-143
作者:  
Xia, Ying;  Jiang, Cuncang;  Chen, Fang;  Lu, Jianwei;  Wang, Yunhua
  |  收藏  |  浏览/下载:20/0  |  提交时间:2017/04/13
OFDM baseband modulation technology based on VHDL (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE International Conference on Advanced Computer Control, ICACC 2010, March 27, 2010 - March 29, 2010, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Lin L.; Qiao Y.-F.; Su W.-X.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
In order to improve the transmission velocity in mulitipath fading wireless channel  two main advantages are obtained via discussing spectrum utilization ratio of OFDM. Then  the high speed OFDM technology receives increasing attentions in mobile communication. Modulation programs are designed with VHDL based on the principle of OFDM in the paper. First  from the results of VHDL simulation  after OFDM fundamental is introduced  the realization of baseband operations  such as interleaver  subcarrier modulation  IFFT and adding CP  are presented. Finally  implemented programs are validated on the actual implement system. Experimental results indicate that setup time corresponding to transmission velocity is only 71.05s and steady time is approximately 6 times as setup time  that is  not only achieving the high speed transmission  but also supplying adequate modulation time. 2010 IEEE.  
Micro-motion exposure method based on PZT piezoelectric ceramics (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, June 17, 2009 - June 19, 2009, Beijing, China
作者:  
Meng Z.;  Meng Z.
收藏  |  浏览/下载:110/0  |  提交时间:2013/03/25
There mainly is laser digital photofinishing technique and digital photofinishing technique based on LCD consisting of TFT and LCOS in the digital photofinishing field at the present time. The former have a good many merit such as wide color gamut  high processing rate  large output size and high brightness  but his cost is very high  his maintain technique being comparatively complex  that result in difficult use for people. The utilization ratio of the latter is low because of lower resolution and lower aperture ratio for LCD  but the digital photofinishing based on LCD have lower cost and higher utilization ration  being suitable for people's current standard of living. Considering above mentioned problem  a micro-motion exposure method based on PZT piezoelectric ceramics used in digital image photofinishing is presented. The two-dimension micro-motion exposure system consisting of PZT piezoelectric ceramics  LCD panel  polarizing film and spring strip is designed. By means of PZT piezoelectric ceramics the LCD panel is removed about the one half of the pixel size of the LCD panel for four times from the original place  at the same time imaging system is exposed four times at the printing paper. The software is used to control the time synchronization  the exposure time and motion range of the LCD panel. The system has advantages such as shorter response time than 0.1seconds  lesser motion error than 0.01 microns  high stability and repeatability. Experimental results show that the proposed micro-motion exposure method improve the picture brightness and enlarge output size  at the meantime reducing the cost of the system. 2009 SPIE.  
Photosynthetic characteristics and growth of Mosla hangchowensis and M-dianthera under different irradiances 期刊论文  OAI收割
BIOLOGIA PLANTARUM, 2006, 卷号: 50, 期号: 4, 页码: 737-740
作者:  
Chang, J.;  Liao, J. -X.;  Ge, Y.;  Guan, B. -H.;  Jiang, Y. -P.
  |  收藏  |  浏览/下载:31/0  |  提交时间:2017/04/13