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科研机构
北京大学 [41]
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其他 [41]
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2017 [2]
2016 [6]
2015 [1]
2014 [3]
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内容类型:其他
专题:北京大学
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High Order Hierarchical Divergence-Free Constrained Transport H(div) Finite Element Method for Magnetic Induction Equation
其他
2017-01-01
Cai, Wei
;
Hu, Jun
;
Zhang, Shangyou
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
H (div) finite elements
hierarchical basis
MHD
divergence-free
LINEAR ELASTICITY
FAMILY
MESHES
GRIDS
A fourth-order AVF method for the numerical integration of sine-Gordon equation
其他
2017-01-01
Jiang, Chaolong
;
Sun, Jianqiang
;
Li, Haochen
;
Wang, Yifan
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Energy-preserving
Average vector field method
Pseudo-spectral method
Sine-Gordon equation
Soliton
BACKWARD ERROR ANALYSIS
SYMPLECTIC RUNGE-KUTTA
ALGORITHMS
SOLITONS
SCHEME
COLLOCATION
PDES
Spatial distribution of forest aboveground biomass in China: Estimation through combination of spaceborne lidar, optical imagery, and forest inventory data
其他
2016-01-01
Su, Yanjun
;
Guo, Qinghua
;
Xue, Baolin
;
Hu, Tianyu
;
Alvarez, Otto
;
Tao, Shengli
;
Fang, Jingyun
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/04
Forest aboveground biomass
GIAS/ICESat
Lidar
Ground inventory
China
SMALL-FOOTPRINT LIDAR
LEAF-AREA INDEX
LANDSAT TM DATA
RADAR BACKSCATTER
CARBON BALANCE
CLIMATE-CHANGE
BRAZILIAN AMAZON
DECIDUOUS FOREST
BOREAL FOREST
GREEN PROGRAM
A review on camera ego-motion estimation methods based on optical flow for robotics
其他
2016-01-01
Lingxi Lu
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  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Optical flow
Ego-motion
Camera
Robot
Optical flow
Ego-motion
Camera
Robot
The simplest nonconforming mixed finite element method for linear elasticity in the symmetric formulation on n-rectangular grids
其他
2016-01-01
Hu, Jun
;
Man, Hongying
;
Wang, Jianye
;
Zhang, Shangyou
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
First order system
Symmetric stress field
Nonconforming mixed finite element
Inf-sup condition
WEAK STRESS SYMMETRY
PLANE ELASTICITY
FAMILY
SUPERCONVERGENCE
TENSORS
FEM
User capacity of wireless physical-layer identification: An information-theoretic perspective
其他
2016-01-01
Wang, Wenhao
;
Sun, Zhi
;
Ren, Kui
;
Zhu, Bocheng
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Dead-zone Free Multi-beam Atomic Sensor for He-4 Magnetometer
其他
2016-01-01
Gong, Wei
;
Wang, Haidong
;
Wu, Teng
;
Lin, Zaisheng
;
Li, Wenhao
;
Peng, Xiang
;
Chen, Jingbiao
;
Guo, Hong
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
atomic magnetometer
dead zone
heading error
light shift
HELIUM
LASER
User Capacity of Wireless Physical-layer Identification: An Information-theoretic Perspective
其他
2016-01-01
Wang, Wenhao
;
Sun, Zhi
;
Ren, Kui
;
Zhu, Bocheng
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
A NEW FAMILY OF EFFICIENT CONFORMING MIXED FINITE ELEMENTS ON BOTH RECTANGULAR AND CUBOID MESHES FOR LINEAR ELASTICITY IN THE SYMMETRIC FORMULATION
其他
2015-01-01
Hu, Jun
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  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
mixed method
enriched Brezzi-Douglas-Fortin-Marini element
enriched Raviart-Thomas element
serendipity element
WEAK STRESS SYMMETRY
PLANE ELASTICITY
FEM
Derivation of tree stem structural parameters from static terrestrial laser scanning data
其他
2014-01-01
Wei, Tian
;
Lin, Yi
;
Liu, Yajing
;
Niu, Zheng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/16
terrestrial laser scanning
diameter at breast height (DBH)
the degree of stem shrinkage
the elevation angle and azimuth angle of stem inclination
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