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CAS IR Grid
机构
长春光学精密机械与物... [2]
力学研究所 [1]
沈阳自动化研究所 [1]
广州能源研究所 [1]
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OAI收割 [5]
内容类型
期刊论文 [3]
会议论文 [2]
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2022 [1]
2020 [1]
2015 [1]
2007 [1]
2005 [1]
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Ocean Temperature Prediction Based on Stereo Spatial and Temporal 4-D Convolution Model
期刊论文
OAI收割
IEEE Geoscience and Remote Sensing Letters, 2022, 卷号: 19, 页码: 1-5
作者:
Zuo XY(左心怡)
;
Zhou XF(周晓锋)
;
Guo DQ(郭大权)
;
Li S(李帅)
;
Liu SR(刘舒锐)
  |  
收藏
  |  
浏览/下载:66/0
  |  
提交时间:2021/08/28
Convolution
Dual characteristics
Ocean temperature
ocean temperature prediction
Predictive models
Robots
Sea surface
Solid modeling
stereo spatial and temporal 4-D convolution model (SST-4D-CNN).
Temperature distribution
A novel pore-fracture dual network modeling method considering dynamic cracking and its applications
期刊论文
OAI收割
Petroleum Research, 2, 2020, 卷号: 5, 页码: 164-169
作者:
Chen YK
;
Yan K
;
Zhang JG
;
Leng RX
;
Cheng HJ
  |  
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2021/06/11
Digital core
Dimensionless parameters
Dynamic cracking
Micro-fracture
Pore-fracture dual network model
Seepage characteristics
Production behaviors and heat transfer characteristics of methane hydrate dissociation by depressurization in conjunction with warm water stimulation with dual horizontal wells
期刊论文
OAI收割
energy, 2015, 卷号: 79, 页码: 315-324
作者:
Feng, Jing-Chun
;
Wang, Yi
;
Li, Xiao-Sen
;
Li, Gang
;
Chen, Zhao-Yang
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2016/11/03
Hydrate dissociation
Depressurizing rate
Heat transfer characteristics
Dual horizontal well
Design of dual-FOV refractive/diffractive LWIR optical system (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Wang L.-J.
;
Zhang J.-P.
;
Wang L.-J.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
An infrared-optical zoom system using binary element is proposed in this paper. The two main advantages of the zoom system introducing here are: bigger F-number and lower cost. The primary optical properties are: F/#=1
Second
Others
zoom ratio =1:4
binary element is used to correct the chromatical aberration by taking the advantage of negative dispersion characteristics and the cost of the system is lower than that of conventional ones with Zinc Selenide (Znse) material at the same level. In the binary element is rotational symmetric with one step which is easy to fabricate
in order to balance 5th spherical aberration
and dual field are 26.6 and 5.6respectively. Wider field of view is used for search and the smaller one is used for imaging details. This system uses un-cooled infrared detector with 320240 pixels and 45m pixel size. The F-number matches the sensitivity range of the detector array. Three aspects are considered during design process to make the system more satisfactory and more achievable. First
5th coma aberration and 5th astigmatic aberration
the manner of zoom is accomplished by exchanging tow lenses into the smaller field of view system layout. The lens exchange manner faces the requirement of simple system structure and good image quality in both focal points. It can also make the system more feasible in the alignment process than mechanical-zooming manner and optical-zooming manner
high-order asphere surfaces with 2th order to 10 th order are also hired in the system. Asphere surface is useful in compressing the system and improving optical system transmittance. This kind asphere surface is on industrial level featuring low cost and easy to fabricate. It is shown that good image quality can achieved by implementing five Germanium lenses and the transmittance of system is 72%. All aberrations are diffraction-limited
both spherical aberration and astigmatic aberration are corrected. When the field of view(FOV) is 26.6 and the focal length is 152mm
MTF at Nyquist frequency(11lp/mm) is great than 0.7. The spherical aberration is -0.0073. The coma aberration is 0.0978 and the astigmatic aberration is -0.013. When the field of view(FOV) is 5.6 and the focal length is 38mm
MTF at Nyquist frequency is great than 0.8 with spherical aberration -0.0046
the coma aberration 0.055 and astigmatic aberration 0.034.
Phase characteristics of laser beam in fibers (EI CONFERENCE)
会议论文
OAI收割
5th International Workshop on Adaptive Optics for Industry and Medicine, August 29, 2005 - September 1, 2005, Beijing, China
作者:
Wang L.
;
Wang L.
;
Liu J.
;
Liu J.
;
Liu J.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
The phase changing rates1 of laser beam in single mode polarization maintaining fiber (PMF)
Yb-doped rectangular inner cladding dual-clad fiber (DCF) and Yb-doped large-mode-area dual-clad fiber (LMF) are investigated by means of interference under situations with different exterior disturbance
for situations that all the fibers are used as transmission medium only
as well as amplifying medium with the last two. In this paper
phase fluctuation characteristics of the beam transmitted through the fibers with no amplification are presented. The results show that the phase fluctuation frequencies of the laser beam transmitted through these three kinds of fibers are mainly in the range of 100-200Hz
100-300Hz and 80-400Hz respectively in normal laboratory environment. The phase fluctuation frequencies of the laser beam transmitted through the DCF
in cases of when the environment temperature is changing
a constant pressure is applied to the fiber and when vibration is applied
are mainly in the range of 100-600Hz
100Hz-300Hz and 100-500Hz respectively. In the same cases
for the LMF
the phase fluctuation frequencies are mainly in the range of 150-600Hz
100-400Hz and 100-1000Hz
respectively. It indicates that for realizing phase stabilization
the bandwidth of any potential phase control2 system has to be in the range of a few kilohertz.