中国科学院机构知识库网格
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Tonic pupil size and its variability are associated with fluid intelligence in adolescents aged 11-14 years 期刊论文  OAI收割
PSYCH JOURNAL, 2020, 页码: 13
作者:  
Lu, Runhao;  Zhang, Xingli;  Shi, Jiannong
  |  收藏  |  浏览/下载:32/0  |  提交时间:2020/11/30
亚热带山地常绿落叶阔叶混交林物种幼苗功能性状差异研究 期刊论文  OAI收割
长江流域资源与环境, 2020, 卷号: 29, 期号: 4, 页码: 938
作者:  
万丹;  刘检明;  徐耀粘;  江明喜;  谷志容
  |  收藏  |  浏览/下载:18/0  |  提交时间:2020/10/04
Effects of tree size heterogeneity on carbon sink in old forests 期刊论文  OAI收割
FOREST ECOLOGY AND MANAGEMENT, 2019, 卷号: 432, 页码: 637-648
作者:  
Shu, Shu-miao;  Zhu, Wan-ze;  Wang, Wen-zhi;  Jia, Min;  Zhang, Yuan-yuan
  |  收藏  |  浏览/下载:96/0  |  提交时间:2019/03/05
Substantial reorganization of China's tropical and subtropical forests: based on the permanent plots 期刊论文  OAI收割
GLOBAL CHANGE BIOLOGY, 2014, 卷号: 20, 期号: 1, 页码: 240-250
作者:  
Zhang, Yiping
收藏  |  浏览/下载:34/0  |  提交时间:2014/04/09
Integrated intensity, orientation code and spatial information for robust tracking (EI CONFERENCE) 会议论文  OAI收割
2007 2nd IEEE Conference on Industrial Electronics and Applications, ICIEA 2007, May 23, 2007 - May 25, 2007, Harbin, China
作者:  
Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
real-time tracking is an important topic in computer vision. Conventional single cue algorithms typically fail outside limited tracking conditions. Integration of multimodal visual cues with complementary failure modes allows tracking to continue despite losing individual cues. In this paper  we combine intensity  orientation codes and special information to form a new intensity-orientation codes-special (IOS) feature to represent the target. The intensity feature is not affected by the shape variance of object and has good stability. Orientation codes matching is robust for searching object in cluttered environments even in the cases of illumination fluctuations resulting from shadowing or highlighting  etc The spatial locations of the pixels are used which allow us to take into account the spatial information which is lost in traditional histogram. Histograms of intensity  orientation codes and spatial information are employed for represent the target Mean shift algorithm is a nonparametric density estimation method. The fast and optimal mode matching can be achieved by this method. In order to reduce the compute time  we use the mean shift procedure to reach the target localization. Experiment results show that the new method can successfully cope with clutter  partial occlusions  illumination change  and target variations such as scale and rotation. The computational complexity is very low. If the size of the target is 3628 pixels  it only needs 12ms to complete the method. 2007 IEEE.  
High-power InGaAs/GaAs VCSEL's two-dimension arrays (EI CONFERENCE) 会议论文  OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Liu Y.;  Wang L.-J.;  Wang L.-J.;  Liu Y.;  Liu Y.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Selectively oxidized InGaAs/GaAs vertical -cavity surface-emitting lasers (VCSEL) array at an emission wavelength of 980nm was reported. A 16 elements array with 200m aperture size (250m center spacing) of individual elements shows a CW output power of 1.21 W at room temperature  resulting in 1 KW/cm2 average optical power density. The device threshold current is 1.32A The lasing peak wavelength is 981.9 nm  the full width at half-maximum is 0.7 nm  and the far-field divergence angle is about 17.The characteristics of a single device with a active region diameter of 800m is compared with that of a 2-D array with active region diameter of individual clement of 200m. These two kinds of devices have the same total lasing area. At the same current injection  the single device has a higher threshold and a higher output power than the array. The red shift of single device is more obvious than that of the array's.  
High-power InGaAs VCSEL's single devices and 2-D arrays (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Materials and Devices for Optical Communications, November 7, 2005 - November 10, 2005, Shanghai, China
作者:  
Sun Y.;  Wang L.;  Wang L.;  Wang L.;  Liu Y.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
High-power VCSELs single devices aid 2-D arrays (EI CONFERENCE) 会议论文  OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Liu Y.;  Wang L.;  Wang L.;  Wang L.;  Liu Y.
收藏  |  浏览/下载:14/0  |  提交时间:2013/03/25