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CAS IR Grid
机构
地理科学与资源研究所 [2]
长春光学精密机械与物... [2]
成都山地灾害与环境研... [1]
中国科学院大学 [1]
上海光学精密机械研究... [1]
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期刊论文 [5]
会议论文 [2]
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2025 [1]
2022 [2]
2010 [2]
2009 [1]
2005 [1]
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Revealing inconsistency of the sediment-water relationships in the Brahmaputra River: A comparative analysis of upstream and downstream cross-sections
期刊论文
OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2025, 卷号: 22, 期号: 8, 页码: 2819-2836
作者:
Rahim, Md Abdur
;
Liu, Shuang
;
Hu, Kaiheng
;
Li, Hao
;
Islam, Maksudul
  |  
收藏
  |  
浏览/下载:1/0
  |  
提交时间:2025/09/28
Sediment-water relation
Climate elasticity
Non-linear change
Transboundary river
The Brahmaputra
Global evidence on the asymmetric response of gross primary productivity to interannual precipitation changes
期刊论文
OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 814, 页码: 9
作者:
Wang, Yiheng
;
Xiao, Jingfeng
;
Li, Xing
;
Niu, Shuli
  |  
收藏
  |  
浏览/下载:51/0
  |  
提交时间:2022/09/21
Asymmetric response
Gross primary productivity
Precipitation variability
Non-linear
Climate change
Carbon dynamics
Global evidence on the asymmetric response of gross primary productivity to interannual precipitation changes
期刊论文
OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 814, 页码: 9
作者:
Wang, Yiheng
;
Xiao, Jingfeng
;
Li, Xing
;
Niu, Shuli
  |  
收藏
  |  
浏览/下载:52/0
  |  
提交时间:2022/09/21
Asymmetric response
Gross primary productivity
Precipitation variability
Non-linear
Climate change
Carbon dynamics
Coseismic displacements caused by point dislocations in a three-dimensional heterogeneous, spherical earth model
期刊论文
iSwitch采集
Geophysical journal international, 2010, 卷号: 183, 期号: 2, 页码: 706-726
作者:
Fu, Guangyu
;
Sun, Wenke
;
Fukuda, Yoichi
;
Gao, Shanghua
收藏
  |  
浏览/下载:127/0
  |  
提交时间:2019/05/10
Numerical solutions
Non-linear differential equations
Transient deformation
Global change from geodesy
Cr image enhancement based on human visual characteristics (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer Design and Applications, ICCDA 2010, June 25, 2010 - June 27, 2010, Qinhuangdao, Hebei, China
Zhang M.-H.
;
Zhang Y.-Y.
收藏
  |  
浏览/下载:52/0
  |  
提交时间:2013/03/25
The characteristic of digital CR medicine radiation image has wide dynamic range
abundant details and bad contrast
so it is necessary to enhance CR image to the need of doctor diagnosis. But the general enhancement algorithms don't consider human visual characteristics
so it puts forward CR medicine image adaptive enhancement algorithm combining the human visual property
which is more sensitive to smooth area noise compared with detail area noise
and makes image edge detail enhancement great in detail area
and detail enhancement little in smooth area
in which factor K is based on space change of image domain
accordingly gaining non-linear enhancement edge details of CR image. Experiment results demonstrate that the algorithm enhances CR image detail and CR image enhanced has good visual effect
so the method is fit for edge detail enhancement of CR medicine radiation image. 2010 IEEE.
A high-speed acquisition and processing system of the laser speckle signal on the magnetic fluid (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:
Sun Y.
;
Sun Y.
;
Wan Q.-H.
收藏
  |  
浏览/下载:48/0
  |  
提交时间:2013/03/25
In order to achieve the dynamical detection and real-time analysis of the movement status of the magnetic fluid
according to the difficulties of the detection of the magnetic fluid
established a high-speed acquisition and processing system of laser speckle signal on the magnetic fluid. First of all
the FPGA (EP2C8T144C8N) drived the linear array CCD(TCD1501D) to scan in the corresponding time sequence given by the computer
collected the laser speckle interferometric image in rapid change on the surface of the magnetic fluid
which followed the movement of the magnetic fluid
and the signal collected by CCD was converted into the digital data through the high-speed A/D convertor and stored into the internal buffer FIFO of the FPGA
whose width and depth were designed by the user as required. Then
the FPGA sent the digital signal of the laser speckle interferometric images into the computer through the USB2.0 highspeed differential bus
whose transmission rate can reach 480Mb/s in theory. Finally
the distribution of the laser speckle on the magnetic fluid was messy and random
which carried certain information about the surface of the magnetic fluid
based on the theories of the statistic correlation and the subdivision of images
analysing and processing the laser speckle interferometric images
indirectly got the movement status of the magnetic fluid under the electromagnetic field. The experimental results show that: the High Speed Acquisition and Processing System has the advantage of full-court
non-contact
non-invasive
high-precision and high reliability and so on. The detection resolution of high speed acquisition and processing system is superior to 1m and the sample rate is 3Msps
which basically meets the requirements of the magnetic fluid movement state detection. 2009 SPIE.
Optimizations for the uniformity of the non-volatile volume grating in doubly doped LiNbO3 crystals
期刊论文
OAI收割
opt. commun., 2005, 卷号: 248, 期号: 1-3, 页码: 27, 33
戴翠霞
;
刘立人
;
刘德安
;
柴志方
;
Zhu LA
收藏
  |  
浏览/下载:1916/319
  |  
提交时间:2009/09/18
non-linear optics
optical materials
holography
non-volatile volume grating
non-unformity
doubly doped LiNbO3 crystals
average refractive-index change