中国科学院机构知识库网格
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Microdensitometric records from humid subtropical China show distinct climate signals in earlywood and latewood 期刊论文  OAI收割
DENDROCHRONOLOGIA, 2020, 卷号: 64, 页码: 10
作者:  
Cao, Xinguang;  Fang, Keyan;  Chen, Ping;  Zhang, Peng;  Bjorklund, Jesper
  |  收藏  |  浏览/下载:44/0  |  提交时间:2021/09/29
Scientific Merits and Analytical Challenges ofTree-Ring Densitometry 期刊论文  OAI收割
REVIEWS OF GEOPHYSICS, 2019, 页码: 41
作者:  
Bjorklund, J.;  von Arx, G.;  Nievergelt, D.;  Wilson, R.;  Van den Bulcke, J.
  |  收藏  |  浏览/下载:21/0  |  提交时间:2020/06/04
A Multifunctional Theranostic Nanoagent for Dual-Mode Image-Guided HIFU/Chemo-Synergistic Cancer Therapy 期刊论文  OAI收割
THERANOSTICS, 2016, 卷号: 6, 期号: 3, 页码: 404-417
作者:  
Zhang, Nan;  Cai, Xiaojun;  Gao, Wei;  Wang, Ronghui;  Xu, Chunyan
收藏  |  浏览/下载:42/0  |  提交时间:2017/02/27
High resolution oxygen isotope and grayscale records of a medieval fossil giant clam (Tridacna gigas) in the South China Sea: physiological and paleoclimatic implications 期刊论文  OAI收割
ACTA OCEANOLOGICA SINICA, 2014, 卷号: 33, 期号: 8, 页码: 18-25
作者:  
Wang, YH (Wang Yuhong)[ 3 ];  Yan, H (Yan Hong)[ 1,2 ];  Sun, LG (Sun Liguang)[ 2 ]
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/11/30
Improved best tradeoff for high-resolution image fusion based on spectral reflection function 会议论文  OAI收割
International Conference on Earth Observation Data Processing and Analysis, ICEODPA,, Wuhan, China, December 28, 2008 - December 30,2008
Wang, Zhongwu; Zhao, Zhongming
收藏  |  浏览/下载:23/0  |  提交时间:2014/12/07
This paper extended the best tradeoff fast intensity-hue-saturation (BTFIHS) fusion to a more general model. Firstly  based-on the methods proposed by previous researches  we integrated injecting strategy of spatial detail information into the fusion model and also adopted the idea of BTFIHS to keep the intensity unchanged with the corresponding pixel in panchromatic (PAN) image  while the hue and saturation of every pixel using BTFIHS were equal to them using tradeoff fast intensity-hue-saturation (TFIHS). Then we got a general formula of the improved best tradeoff for high-resolution image fusion based-on getting injecting parameter by spectral reflection function (SRF). At last  several experiments were carried on to analysis and discuss the quality of the new methods compared with their originals. Results show that the new method could yield a "true" high-resolution multispectral (MS) image  with vast improvement in blue band and nearly 3.3% improvement in Q4 for all bands. 2008 SPIE.  
Energy transfer and red phosphorescence in strontium aluminates doped with Cr3+, Eu2+ and Dy3+ (EI CONFERENCE) 会议论文  OAI收割
Dielectrics in Emerging Technologies -and- Persistent Phosphors - International Symposia, May 15, 2005 - May 20, 2005, Quebec City, QC, Canada
作者:  
Wang X.;  Wang X.;  Wang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
Cr3+ activated red (694 nm) long persistent phosphorescence originating from 2E-4A2 transition is observed in 4SrO·7Al2O3: Cr3+  Eu2+  Dy3+ system. It is demonstrated that the red phosphorescence is resulted from the conversion of Eu2+ activated blue phosphorescence through persistence energy transfer from Eu2+ to Cr3+. The excitation spectra of the 694 nm emission exhibit strong f-d band of Eu 2+  indicating the existence of the energy transfer. The dependence of lifetimes and intensities of the red and blue emissions on Cr3+ concentrations are studied. The intensity ratio of the red to blue emission bands obtained from photoluminescence spectra is in good agreement with that obtained from fluorescence lifetime measurements. The decay curves of the red phosphorescence at 694nm are also studied.