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Chinese Academy of Sciences Institutional Repositories Grid
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Divergent shifts in peak photosynthesis timing of temperate and alpine grasslands in China 期刊论文  OAI收割
REMOTE SENSING OF ENVIRONMENT, 2019, 卷号: 233, 页码: 14
作者:  
Yang, Jilin;  Dong, Jinwei;  Xiao, Xiangming;  Dai, Junhu;  Wu, Chaoyang
  |  收藏  |  浏览/下载:33/0  |  提交时间:2020/05/19
Divergent shifts in peak photosynthesis timing of temperate and alpine grasslands in China 期刊论文  OAI收割
REMOTE SENSING OF ENVIRONMENT, 2019, 卷号: 233, 页码: 14
作者:  
Yang, Jilin;  Dong, Jinwei;  Xiao, Xiangming;  Dai, Junhu;  Wu, Chaoyang
  |  收藏  |  浏览/下载:43/0  |  提交时间:2020/05/19
Resilience-Aware Frequency Tuning for Neural-Network-Based Approximate Computing Chips 期刊论文  OAI收割
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, 2017, 卷号: 25, 期号: 10, 页码: 2736-2748
作者:  
Wang, Ying;  Deng, Jiachao;  Fang, Yuntan;  Li, Huawei;  Li, Xiaowei
  |  收藏  |  浏览/下载:34/0  |  提交时间:2019/12/12
LAPS: Layout-Aware Path Selection for Post-Silicon Timing Characterization 期刊论文  OAI收割
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, 2017, 卷号: E100D, 期号: 2, 页码: 323-331
作者:  
Hu, Yu;  Ye, Jing;  Shi, Zhiping;  Li, Xiaowei
  |  收藏  |  浏览/下载:27/0  |  提交时间:2019/12/12
A sensitive solid-phase time-resolved fluorescence immunoassay apparatus (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者:  
Song K.-F.;  Li J.-L.;  Zhang W.-L.;  Wang Y.-L.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
In the device  a He-Ne laser of flash frequency 1-20 Hz was adopted as exciting light source  and three key technical problems have been solved successfully in order to enhance the detecting sensitivity and measuring stability of the device for time-resolved fluorimmunoassays(TRFIA) [1]. The first one is to design optimum exciting optical system  so that the exciting light beam excite the sample most effectively. The second one is to have a project spectrum filter which can reduce the affection of the background light to the photomultiplier tube and also ensure influence of the stray light and mixed diffusion light to the sample fluorescence to the least  the sample fluorescence through the integrating sphere and come to the grating monochromator  The right wavelength will be chosed through changing the angle of incidence of the grating monochromator. The third one is to simulate the principle of sample averaging of BOXCAR averager. In the device  SCM was used as primary controller and CPLD was used as timing controller. Through the preparation process  signal-to-noise ratio(SNR) will be improved  also adjust delay time  ampling frequency and sampling number arbitrarily. By testing  the sensitivity is 10-12mol/L(substance marked by Eu3+)  examination repeat is &le2.5%  examination linearity is from 10 -8mol/L to 10-12mol/L  correlation coefficient is 99.98%(p&le0.01). The instrument is advanced for ultrasensitive detection of antigen and antibody  and solve the tumor  genetic variation  the virus protein detection. 2009 SPIE.  
Design of an improved data signal timing for an amorphous silicon active-matrix organic LED display (EI CONFERENCE) 会议论文  OAI收割
ICO20: Display Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Zhang Z.-W.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
The most critical issue in the design of an active matrix organic light emitting diode (AM-OLED) display pixel is the pixel to the pixel luminance uniformity. By substituting four-thin film transistor (TFT) pixel circuit for two-TFT pixel circuit  the luminous uniformity has great improved  but it requires more components than the two-TFT pixel circuit. There are some barriers needed to resolve to utilize hydrogenated amorphous silicon transistor to lit OLED  such as low field effect mobility  low output current and threshold voltage shift. In this article  a two-a-Si:H TFT pixel circuit was designed  which consisted of one named switching TFT and the other named driving TFT. The driving TFT gate line structure modified and a data signal timing improved were reported. The modified driving TFT can provide enough current about 30 microampere to lit OLED and the novel data signal timing can provide a constant current to OLED by restraining the driving TFT threshold voltage variation. In the novel data signal timing  the control signals to the driving TFT gate include a data signal and a reverse data signal. The signals alteration is performed either at a frame rate or at a line rate. By experiments  the driving TFT output current value is plotted as a function of the time in different reversed voltage value. When the magnitude of the positive data signal and the negative data signal is equal  the variety of Vth  is smallest  about 1.28V after a fixed stressing time of 1.33104min  which shows the novel data signal timing can improved the driving TFT output-input current stability.