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长春光学精密机械与物... [3]
武汉植物园 [2]
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期刊论文 [4]
会议论文 [3]
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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
Artificial compound eye
Photon sieves
Ommatidium
Focusing performance
Utilization ratio of energy
Angle field of view
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
Refrigerant capacity
Utilization ratio
LaFe13-xSix compounds
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
In order to improve the wavelength utilization as well as the fairness of the light trail networks
we modified the FP MAC from the view point of weight balance by introducing a weight mode. The weight mode is composed of two factors
real-time factor and node activity ratio. Moreover
the weight mode is used as a bid by each LT node to compute the priority. Hence
the priority of the LT node is adjusted dynamically in every round and the MAC protocol with dynamic priority adjustment is entitled as DPA MAC. Simulation results show that the performances of DPA MAC protocol are much better than that of FP MAC protocol in terms of packet loss rate and activity percentile. 2011 Copyright SPIE - The International Society for Optical Engineering.
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
Fertilization
growing status
harvest index
potassium utilization
reproductive to vegetative ratio
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
apparent quantum yield
net photosynthetic rate
radiant energy utilization
root/shoot ratio
water use efficiency