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CAS IR Grid
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长春光学精密机械与物... [5]
地理科学与资源研究所 [1]
心理研究所 [1]
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OAI收割 [7]
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会议论文 [5]
SCI/SSCI论文 [1]
期刊论文 [1]
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2021 [1]
2014 [1]
2011 [4]
2009 [1]
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Providing targeted psychological support to frontline nurses involved in the management of COVID-19: An action research
期刊论文
OAI收割
JOURNAL OF NURSING MANAGEMENT, 2021, 页码: 11
作者:
Chen, Shao-Hua
;
Liu, Jun-E
;
Bai, Xiao-Yu
;
Yue, Peng
;
Luo, Shi-Xiang
  |  
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2021/03/29
action research
coronavirus disease 2019
nurse
psychological needs
support
Confronting international research topics with stakeholders on multifunctional land use: the case of Inner Mongolia, China
SCI/SSCI论文
OAI收割
2014
作者:
Zhen L.
收藏
  |  
浏览/下载:50/0
  |  
提交时间:2014/12/24
Interdisciplinary Research
Sustainable Development
Decision Making
Research Needs
Science-policy Interface
natural-resource management
horqin sandy land
soil properties
wind
erosion
grazing intensity
semiarid steppe
northern china
spatial
heterogeneity
species-diversity
leymus-chinensis
SGCMG design and time accumulation error analysis (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
Xu W.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
SGCMG receives much concern due to the performance of its excellent torque output on spacecraft control
it has been applied to large foreign spacecraft already
but late start and only limited to configurations and steering law study in China. Based on the needs of agility small satellites
this article explained the method of SGCMG principle prototype design and proposed the influence on SGCMG output torque precision generated by time accumulation error first time. This article provided a new idea for future SGCMG project development and had good reference value for SGCMG research. 2011 IEEE.
Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:
Wang S.-R.
;
Lin G.-Y.
;
Yu L.
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2013/03/25
Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding
the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror
a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror
coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected
and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system
a deuterium lamp
a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.
High resolution gray-scale modulation method based on linear superposition for LED displays (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Control, Automation and Systems Engineering, CASE 2011, July 30, 2011 - July 31, 2011, Singapore, Singapore
Feng Y.
;
Xu X.
;
Miao C.
;
Ding T.
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2013/03/25
This paper proceeds a new method for gray-scale modulation
has a deep research on weighted linear superposition principle of pulse width sequences
builds a basic equation of scanning drive
analyzes constraint relations between compound modes of pulse sequences and gray-scale resolution
pixel driving efficiency
data shifting clock and refresh rate
etc and optimal methods
and lists parameter optimal values in different scanning ways according to real needs of LED displays
resulting in realization of gray-scale modulation in 14bit to 18 bit resolution. 2011 IEEE.
Optimum design of the carbon fiber thin-walled baffle for the space-based camera (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yan Y.
;
Gu S.
;
An Y.
;
Jin G.
收藏
  |  
浏览/下载:14/0
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提交时间:2013/03/25
The thin-walled baffle design of the space-based camera is an important job in the lightweight space camera research task for its stringent quality requirement and harsh mechanical environment especially for the thin-walled baffle of the carbon fiber design. In the paper
an especially thin-walled baffle of the carbon fiber design process was described and it is sound significant during the other thin-walled baffle design of the space camera. The designer obtained the design margin of the thin-walled baffle that structural stiffness and strength can tolerated belong to its development requirements through the appropriate use of the finite element analysis of the walled parameters influence sensitivity to its structural stiffness and strength. And the designer can determine the better optimization criterion of thin-walled baffle during the geometric parameter optimization process in such guiding principle. It sounds significant during the optimum design of the thin-walled baffle of the space camera. For structural stiffness and strength of the carbon fibers structure which can been designed
the effect of the optimization will be more remarkable though the optional design of the parameters chose. Combination of manufacture process and design requirements the paper completed the thin-walled baffle structure scheme selection and optimized the specific carbon fiber fabrication technology though the FEM optimization
and the processing cost and process cycle are retrenchment/saved effectively in the method. Meanwhile
the weight of the thin-walled baffle reduced significantly in meet the design requirements under the premise of the structure. The engineering prediction had been adopted
and the related result shows that the thin-walled baffle satisfied the space-based camera engineering practical needs very well
its quality reduced about 20%
the final assessment index of the thin-walled baffle were superior to the overall design requirements significantly. The design method is reasonable and efficient to the other thin-walled baffle that mass and work environment requirement is requirement harsh. 2011 SPIE.
Self-adaptive threshold canny operator in color image edge detection (EI CONFERENCE)
会议论文
OAI收割
2009 2nd International Congress on Image and Signal Processing, CISP'09, October 17, 2009 - October 19, 2009, Tianjin, China
Luo T.
;
Zheng X.-F.
;
Ding T.-F.
收藏
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浏览/下载:16/0
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提交时间:2013/03/25
It needs to set the two thresholds of classical Canny Operator manually
which confined this algorithm. A lot of research on adaptive thresholds choice method has been done to conquer this shortcoming. Based on the gradient histogram
which is studied constantly in the past
a method of gradient histogram difference diagram with adaptive image classification techniques is proposed in this paper. It automatically sets the two thresholds
and avoids disconnected or false edges in detection. Experiments prove that the method is threshold-adaptive and the edge detection performs well in color image whose larger gradient amplitude pixels are mainly located in the edges between the target and background. 2009 IEEE.