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金属研究所 [2]
长春光学精密机械与物... [2]
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OAI收割 [6]
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会议论文 [3]
期刊论文 [3]
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Learning graph structure via graph convolutional networks
期刊论文
OAI收割
PATTERN RECOGNITION, 2019, 卷号: 95, 页码: 308-318
作者:
Zhang, Qi
;
Chang, Jianlong
;
Meng, Gaofeng
;
Xu, Shibiao
;
Xiang, Shiming
  |  
收藏
  |  
浏览/下载:80/0
  |  
提交时间:2019/12/16
Deep learning
Graph convolutional neural networks
Graph structure learning
Changeable kernel sizes
Determining the nonlocal parameters of a MI-CRO/nanostructure by the shifts of resonant frequencies
会议论文
OAI收割
23rd International Congress on Sound and Vibration, ICSV 2016, Athens, Greece, July 10, 2016 - July 14, 2016
作者:
Liu Y
;
Zhang Y(张吟)
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2017/05/05
Grain size
Lattice length
Material constant
Micro/nanostructures
Nonlocal theory
Physical pictures
Structure sizes
Submicron structures
Optimal design of strap-down inertial navigation support under random loads (EI CONFERENCE)
会议论文
OAI收割
2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China
作者:
Li M.
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  |  
浏览/下载:29/0
  |  
提交时间:2013/03/25
In order to realize miniaturization and light weight of the strap-down inertial navigation system
and then to make sure that it works well under random loads
optimal design is applied to the strap-down inertial navigation support with the methods of topology optimization and size optimization. Firstly
based on the installation requirement of devices and connection requirement of the support and the carrier
the initial structure of the support is designed. Topology optimization with FEA software ANSYS is adopted on the initial structure to get the basic one. Then 5 critical sizes are chosen as design variables
and the support structure is optimized by means of size optimization to reach light weight with satisfying the requirement of dynamic stiffness. Finally
random vibration analysis is applied to the initial structure. In the mean time
random vibration test is carried out to qualify the analysis method. After the qualification
a random vibration analysis is applied to the optimized support structure to get the rms of displacement response and acceleration response of the support to validate whether the optimized structure is appropriate. The results indicate that the dynamic stiffness of the optimized support structure satisfies the design requirements
and its weight is lighter 49.38% than that of the initial one. This research can be a reference to the structure design of supports under random loads
and the result has been applied to the development and manufacture of a prototype aerocraft. 2010 IEEE.
The study of optical property for CdS nanocrystalline prepared by precipitation method (EI CONFERENCE)
会议论文
OAI收割
ICO20: Materials and Nanostructures, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Zhang S.
;
Li W.
;
Li W.
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  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
CdS nanocrystalline were prepared by precipitation from a mixture of aqueous solutions of cadmium salts and sulfur salts without adding any surface-termination agent. Their crystal structures and particle sizes were determined by X-ray diffraction (XRD). The CdS nanocrystalline precipitated from different precursors exhibited three cases: cubic phase
hexagonal phase and a mixture of cubic and hexagonal phases. The photoluminescence (PL) of cadmium salt precursors and CdS nanocrystalline is also analyzed. Similar spectral band structure of cadmium salt precursors and CdS nanocrystalline is found. The spectral intensity of the CdS-Cd rich and CdS-S rich nanocrystalline shows that the precursors themselves have important effect on the PL of CdS nanocrystalline.
EXAFS study of mechanical-milling-induced solid-state amorphization of Se
期刊论文
OAI收割
Journal of Non-Crystalline Solids, 2004, 卷号: 333, 期号: 3, 页码: 246-251
Y. H. Zhao
;
K. Lu
;
T. Liu
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  |  
浏览/下载:15/0
  |  
提交时间:2012/04/14
absorption fine-structure
different grain sizes
amorphous selenium
silicon
attrition
crystal
alloys
zr
Synthesis of nanocrystalline materials from amorphous solids
期刊论文
OAI收割
Advanced Materials, 1999, 卷号: 11, 期号: 13, 页码: 1127-+
K. Lu
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  |  
浏览/下载:31/0
  |  
提交时间:2012/04/14
ultrafine grain-structure
alloys
selenium
sizes