中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [1]
上海微系统与信息技术... [1]
半导体研究所 [1]
广州能源研究所 [1]
工程热物理研究所 [1]
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OAI收割 [5]
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期刊论文 [4]
会议论文 [1]
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2022 [1]
2012 [1]
2011 [1]
2000 [1]
1997 [1]
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Physics, A... [1]
半导体材料 [1]
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The investigation on the attrition of hematite oxygen carrier particles in a fluidization-based chemical looping system
期刊论文
OAI收割
FUEL PROCESSING TECHNOLOGY, 2022, 卷号: 236, 页码: 10
作者:
Li, Heyu
;
Sun, Zhe
;
Tian, Lijun
;
Gao, Lei
;
Xu, YuSheng
|
收藏
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浏览/下载:5/0
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提交时间:2024/12/03
Attrition
Hematite oxygen carrier
Coal
Chemical Looping
CO2 capture
Reactivity study on oxygen carriers for solar-hybrid chemical-looping combustion of di-methyl ether
期刊论文
OAI收割
COMBUSTION AND FLAME, 2012, 卷号: 159, 期号: 5, 页码: 1806-1813
作者:
Han, Tao
;
Hong, Hui
;
He, Fengjuan
;
Jin, Hongguang
收藏
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浏览/下载:20/0
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提交时间:2015/11/04
Chemical-looping combustion
Di-methyl ether
Oxygen carrier
CO2 capture
Research on infrared dim-point target detection and tracking under sea-sky-line complex background (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Dong Y.-X.
;
Zhang H.-B.
;
Li Y.
;
Li Y.
;
Li Y.
收藏
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浏览/下载:115/0
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提交时间:2013/03/25
Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system
the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms
such as adaptive background prediction detecting method. When background has dispersion-decreasing structure
the traditional target detection algorithms would be more useful. But when the background has large gray gradient
such as sea-sky-line
sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature
in our opinion
from the perspective of mathematics
the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis
the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection
its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore
the purpose of the image preprocessing is to reduce the effects from noise
also to raise the SNR of image
and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics
the median filter is used to eliminate noise
improve signal-to-noise ratio
then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line
so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Electronic characteristics of InAs/GaAs self-assembled quantum dots by deep level transient spectroscopy
期刊论文
OAI收割
journal of crystal growth, 2000, 卷号: 208, 期号: 1-4, 页码: 107-112
Wang HL
;
Ning D
;
Zhu HJ
;
Chen F
;
Wang H
;
Wang XD
;
Feng SL
收藏
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浏览/下载:50/0
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提交时间:2010/08/12
self-assembled quantum dots
InAs/GaAs
DLTS
PL
activation energy
capture barrier
ENERGY-LEVELS
CARRIER RELAXATION
GROWTH
Characterization of photoluminescence intensity and efficiency of free excitons in semiconductor quantum well structures
期刊论文
OAI收割
JOURNAL OF APPLIED PHYSICS, 1997, 卷号: 82, 期号: 8, 页码: 3870-3873
Jin, SR
;
Zheng, YL
;
Li, AZ
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浏览/下载:26/0
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提交时间:2012/03/25
CARRIER CAPTURE
RECOMBINATION
DYNAMICS
HETEROSTRUCTURES
LASERS
LAYERS
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