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长春光学精密机械与物... [3]
数学与系统科学研究院 [1]
自动化研究所 [1]
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OAI收割 [5]
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会议论文 [3]
期刊论文 [2]
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2012 [1]
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A new strategy in drug design of chinese medicine: Theory, method and techniques
期刊论文
OAI收割
CHINESE JOURNAL OF INTEGRATIVE MEDICINE, 2012, 卷号: 18, 期号: 11, 页码: 803-806
作者:
Yang Hong-jun
;
Shen Dan
;
Xu Hai-yu
;
Lu Peng
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  |  
浏览/下载:89/0
  |  
提交时间:2015/08/12
drug design of Chinese medicine
combination-activity relationship
prescription discovery
component identification
formula optimization
system modeling
Design and optimization of supporting structure for scanning mirror in aviation remote sensor (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:
Yang H.
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  |  
浏览/下载:61/0
  |  
提交时间:2013/03/25
An optical supporting structure is studied to improve its structure stiffness and reduce the rotate error to meet the requirement of aviation remote sensor. A formula to calculate fundamental frequency is proposed using Rayleigh-Ritz method
and a method of is analyzed. By means of OPTISTRUCT software
the maximum fundamental frequency is converted to object function
the deformation under the gravity and the mass are assigned to state variable
wall thicknesses of the structure are converted to design variables. The analysis and test results indicate that the fundamental frequency of designed optical supporting structure has been improved 37.2 Hz from 96.9 Hz
which guarantee the reliability of the sweep mechanism
and the rotate error is 4.89
which is satisfied for the rotate accuracy in plunge angle. The method of optimization has a certain instructional significance for the design of supporting structures in aviation remote sensor. 2011 IEEE.
Design of aspherical surfaces for panoramic imagers using multipopulations genetic algorithm (EI CONFERENCE)
会议论文
OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:
Jin C.-S.
;
Wang L.-P.
;
Liang Z.-Z.
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  |  
浏览/下载:44/0
  |  
提交时间:2013/03/25
A design method of aspherical surface for panoramic imaging system with two mirrors using multi-populations genetic algorithms is proposed. Astigmatism induced by mirrors may significantly compromise image resolution. To solve this problem
we induced algebraic expression of astigmatism in panoramic imager based on generalized Coddington equation and theory of geometric optics. Then
we propose an optimization process for mirror profile design to eliminate astigmatism and provide purposely-designed projection formula with aid of MPGA. A series of polynomial expressions of aspherical surfaces are obtained and procedures of the design are presented. In order to facilitate ray tracing and aberration calculation
even asphere surface model is obtained by using of hybrid schemes combining MPGA and damped least squares. Finally
a prototype of the catadioptric panoramic imager has been developed and panoramic ring image is obtained. 2009 SPIE.
Measuring system on 3-D pose of the remote revolving target based on intersection measurment and its precision analysis (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Li Q.-A.
;
Li X.-R.
;
Liang C.-P.
;
Qiao Y.-F.
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  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
In this paper
a method of measuring the 3-D pose of the remote revolving target such as rocket or missile by using the intersected measuring system with a proper algorithm is described. This passage creates a math model of intersected measuring system with dual - photoelectric theodolite and the formula to calculate the target attitude angles are presented.The measuring precision of this method is analyzed in detail by using the relative error theory
and then it makes optimization design for structure parameters of intersected measuring system with dual - photoelectric theodolite by computer simulation
so different optimization results according to different location of target are obtained
and the system lay-out
measuring principles are also presented. By using this method we may acquire the measuring precision higher than 0.5 if the measuring stations are arranged correctly.
On restart procedures for the conjugate gradient method
期刊论文
OAI收割
NUMERICAL ALGORITHMS, 2004, 卷号: 35, 期号: 2-4, 页码: 249-260
作者:
Dai, YH
;
Liao, LZ
;
Li, D
  |  
收藏
  |  
浏览/下载:41/0
  |  
提交时间:2018/07/30
unconstrained optimization
conjugate gradient method
BFGS updating formula
restart
global convergence