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科研机构
北京大学 [11]
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期刊论文 [8]
其他 [2]
会议论文 [1]
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2017 [1]
2016 [1]
2013 [1]
2012 [1]
2011 [2]
2007 [1]
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专题:北京大学
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Spin-Controlled Multiple Pencil Beams and Vortex Beams with Different Polarizations Generated by Pancharatnam-Berry Coding Metasurfaces
期刊论文
ACS APPLIED MATERIALS & INTERFACES, 2017
Zhang, Lei
;
Liu, Shuo
;
Li, Lianlin
;
Cui, Tie Jun
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2017/12/03
coding metasurface
Pancharatnam-Berry phase
anisotropy
vortex beam
circularly polarized waves
multiple beams
PHASE DISCONTINUITIES
LIGHT-PROPAGATION
TERAHERTZ WAVES
EFFICIENCY
METAMATERIALS
REFLECTION
SCATTERING
REFRACTION
DIFFUSION
SMe: explicit & implicit constrained-space probabilistic threshold range queries for moving objects
期刊论文
GEOINFORMATICA, 2016
Wang, Zhi-Jie
;
Yao, Bin
;
Cheng, Reynold
;
Gao, Xiaofeng
;
Zou, Lei
;
Guan, Haibing
;
Guo, Minyi
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Probabilistic threshold range query
Uncertain objects
Obstacles
Query processing
Indexing
DATABASES
Consensus based formation control laws for systems on Lie groups
期刊论文
系统与控制通讯, 2013
Dong, Runsha
;
Geng, Zhiyong
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/10
Lie groups
Formation control
Consensus based approach
A vector-based algorithm to generate and update multiplicatively weighted Voronoi diagrams for points, polylines, and polygons
期刊论文
计算机与地学, 2012
Gong, Yongxi
;
Li, Guicai
;
Tian, Yuan
;
Lin, Yaoyu
;
Liu, Yu
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/10
Multiplicatively weighted Voronoi
diagrams
Vector-based algorithm
Boolean operations on conic polygons
BOOLEAN OPERATIONS
THIESSEN POLYGONS
COMPUTATION
LINE
GIS
Derivation of the functional relations between fractal dimension of and shape indices of urban form
期刊论文
computers environment and urban systems, 2011
Chen, Yanguang
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  |  
浏览/下载:4/0
  |  
提交时间:2015/11/10
Urban form
Urban shape
City size
City classification
Fractal
Boundary dimension
Shape index
Scaling range
LAND-USE
CELLULAR-AUTOMATA
MORPHOLOGY
EVOLUTION
DYNAMICS
CITIES
SIZE
Efficient Euclidean Distance Transform Using Perpendicular Bisector Segmentation
其他
2011-01-01
Wang, Jun
;
Tan, Ying
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/13
LINEAR-TIME
PROPAGATION
ALGORITHMS
NEIGHBORHOODS
PICTURE
Assessment for different venture capital tax policies based on option theory and Monte Carlo simulation
其他
2007-01-01
Hu, Kui K.
;
Shi, Shuzhong
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/16
Monte Carlo simulation
real options
option pricing
venture capital
Necessary and sufficient conditions for controllability of switched impulsive control systems with time delay
会议论文
Xie, Guangming
;
Yu, Junyan
;
Wang, Long
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  |  
浏览/下载:2/0
  |  
提交时间:2015/11/13
LINEAR-SYSTEMS
HYBRID SYSTEMS
LYAPUNOV FUNCTIONS
REACHABILITY
STABILITY
OBSERVABILITY
STABILIZATION
CRITERIA
DESIGN
Stability margin of a closed interval system
期刊论文
international journal of systems science, 1998
Geng, ZY
;
Huang, L
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  |  
浏览/下载:2/0
  |  
提交时间:2015/11/10
PLANTS
ROBUST STABILITY OF DIAMOND FAMILIES OF POLYNOMIALS WITH COMPLEX COEFFICIENTS
期刊论文
international journal of systems science, 1992
WANG, L
;
HUANG, L
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  |  
浏览/下载:0/0
  |  
提交时间:2015/11/13
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