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地质与地球物理研究所 [2]
长春光学精密机械与物... [2]
力学研究所 [1]
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兰州化学物理研究所 [1]
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OAI收割 [9]
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期刊论文 [5]
会议论文 [4]
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Physics [1]
材料科学与物理化学 [1]
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Iso-scallop tool-path generation of five-axis computer numerically controlled machining for cyclide splines
期刊论文
OAI收割
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, 2015, 卷号: 229, 期号: 7, 页码: 1144-1156
作者:
Min, Cheng
;
Gao, Xiao-Shan
  |  
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2018/07/30
Five-axis computer numerically controlled machining
cyclide spline surfaces
tool orientation optimization
iso-scallop tool path
iso-parametric tool path
反应结晶器的模型、模拟和应用(英文)
会议论文
OAI收割
2013中国化工学会年会, 中国江苏南京, 2013-09-23
作者:
杨超
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2015/05/13
multiphase
petrochemical
pharmaceutical
devoted
mixing
resolving
numerically
Eulerian
surfactant
aggregation
A new algorithm for solving the best-fit sphere of optical aspherical surface (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Advances in Materials and Manufacturing, ICAMMP 2011, December 16, 2011 - December 18, 2011, Guilin, China
作者:
Lin J.
;
Lu M.
收藏
  |  
浏览/下载:40/0
  |  
提交时间:2013/03/25
To solve the best-fit sphere (BFS) accurately is one of the technological keys for the generating and testing of optical aspherical surfaces. This paper presents a new algorithm for solving the BFS of aspherical surfaces to suppress some deficiencies in the existing BFS algorithms. In the proposed approach
it is not only suitable for the conic surface
a BFS is constructed
but also for higher order aspheres. The obtained asphericity and material removal function is more suitable for the machining and test. (2012) Trans Tech Publications
which passes through both sides of endpoints in the section o -?xy of the aspherical surfaces
Switzerland.
the center of the BFS is shifted along the x-axis
and its radius of curvature is automatically computed. The variable step size method is proposed to speed up the convergence of the iteration. Through numerically solving the BFS of conic and cubic surface
the advantages of the proposed approach are verified. The results show that the proposed approach is of rapid convergence
and high accuracy
Blind channel estimation of MIMO-OFDM based on FDPM (EI CONFERENCE)
会议论文
OAI收割
5th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2009, September 24, 2009 - September 26, 2009, Beijing, China
Gang W.
;
Ming Z.
;
Hua C.
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
Subspace based methods have been widely discussed in multichannel estimation including MIMO-OFDM system. However
direct subspace methods suffer from heavy computation complexity y of O(N3). In this paper
a new subspace tracking technique called Fast Data Projection Method (FDPM) is proposed for adaptively tracking the noise subspace. The new algorithm has low complexity of O(NL) and is the only numerically stable
low complexity algorithm for tracking subspaces corresponding to the smallest singular values. Simulation results show that the proposed scheme has similar performance to the original. 2009 IEEE.
Solitary kinetic Alfven waves in dusty plasmas
期刊论文
OAI收割
PHYSICS OF PLASMAS, 2008, 卷号: 15, 期号: 8, 页码: 083703
作者:
Li, Yang-fang
;
Wu, D. J.
;
Morfill, G. E.
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2011/12/29
Solitary kinetic Alfven waves in dusty plasmas are studied by Considering the dust charge variation. The effect of the dust charge-to-mass ratio on the soliton solution is discussed. The Sagdeev potential is derived analytically with constant dust charge and then calculated numerically by taking the dust charge variation into account. We show that the dust charge-to-mass ratio plays an important role in the soliton properties. The soliton solutions are comprised of two branches. One branch is sub-Alfvenic and the soliton velocity is obviously smaller than the Alfven speed. The other branch is super-Alfvenic and the soliton velocity is very close to or greater than the Alfven speed. Both compressive and rarefactive solitons can exist. For the sub-Alfvenic branch
the rarefactive soliton is bell-shaped and it is much narrower than the compressive one. However
for the super-Alfvenic branch
the compressive soliton is bell-shaped and narrower
and the rarefactive one is broadened. When the charge-to-mass ratio of the dust grains is sufficiently high
the width of the rarefactive soliton
in the super-Alfvenic branch
will broaden extremely and a electron depletion will be observed. It is also shown that the bell-shaped soliton can transition to a cusped structure when the velocity is sufficiently high. (C) 2008 American Institute of Physics.
Regularized kernel-based BRDF model inversion method for ill-posed land surface parameter retrieval
期刊论文
OAI收割
REMOTE SENSING OF ENVIRONMENT, 2007, 卷号: 111, 期号: 1, 页码: 36-50
作者:
Wang, Yanfei
;
Li, Xiaowen
;
Nashed, Zuhair
;
Zhao, Feng
;
Yang, Hua
  |  
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2018/09/26
kernel-based BRDF model
ill-posed problems
inversion
regularization
numerically truncated SVD
Regularized kernel-based BRDF model inversion method for ill-posed land surface parameter retrieval
期刊论文
OAI收割
REMOTE SENSING OF ENVIRONMENT, 2007, 卷号: 111, 期号: 1, 页码: 36-50
作者:
Wang, Yanfei
;
Li, Xiaowen
;
Nashed, Zuhair
;
Zhao, Feng
;
Yang, Hua
  |  
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2018/09/26
kernel-based BRDF model
ill-posed problems
inversion
regularization
numerically truncated SVD
Reduction of thermocapillary convection in a silicon liquid bridge by a non-contaminating method
会议论文
OAI收割
5th China-Japan Workshop on Microgravity Sciences, Dunhuang,Gansu Province, China, 2002-09-01
作者:
Li MW
;
Li J
;
Chen NF(陈诺夫)
;
Li J
;
Hu WR(胡文瑞)
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2015/09/10
convection
floating
imposed
arrangement
numerically
suppression
viscous
producing
highlight
simplicity
白色润滑成膜膏的研制及其摩擦学特性与应用
期刊论文
OAI收割
摩擦学学报, 1997, 卷号: 17, 期号: 3, 页码: 227-231
作者:
薛群基
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2014/05/23
稀土氟化物
润滑成膜膏
数控机床卡盘
烧结负荷
rare earth complex lubricating film-forming paste
numerically controlled machine tool
sintering load