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科研机构
北京大学 [30]
内容类型
期刊论文 [23]
其他 [6]
会议论文 [1]
发表日期
2017 [2]
2016 [6]
2015 [5]
2014 [1]
2013 [4]
2012 [2]
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专题:北京大学
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Estimation of leaf area index and its sunlit portion from DSCOVR EPIC data: Theoretical basis
期刊论文
REMOTE SENSING OF ENVIRONMENT, 2017
Yang, Bin
;
Knyazikhin, Yuri
;
Mottus, Matti
;
Rautiainen, Miina
;
Stenberg, Pauline
;
Yan, Lei
;
Chen, Chi
;
Yan, Kai
;
Choi, Sungho
;
Park, Taejin
;
Myneni, Ranga B.
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
DSCOVR mission
Sunlit leaf area index
Spectral invariants
Hot spot
Operational algorithm
Radiative transfer
PHOTOSYNTHETICALLY ACTIVE RADIATION
PHOTON RECOLLISION PROBABILITY
CANOPY SPECTRAL INVARIANTS
SYSTEM DATA RECORD
PART 1
HOTSPOT OBSERVATIONS
VEGETATION STRUCTURE
HYPERSPECTRAL DATA
BOREAL FOREST
MISR DATA
PHYSICAL-CONSTRAINT-PRESERVING CENTRAL DISCONTINUOUS GALERKIN METHODS FOR SPECIAL RELATIVISTIC HYDRODYNAMICS WITH A GENERAL EQUATION OF STATE
其他
2017-01-01
Wu, Kailiang
;
Tang, Huazhong
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
equation of state
hydrodynamics
methods: numerical
shock waves
relativistic processes
IDEAL MHD EQUATIONS
FINITE-ELEMENT-METHOD
HIGH-ORDER SCHEMES
HYPERBOLIC CONSERVATION-LAWS
PIECEWISE PARABOLIC METHOD
FLUID-DYNAMICS
WENO LIMITERS
JETS
SIMULATIONS
CODE
Describing Urban Evolution with the Fractal Parameters Based on Area-Perimeter Allometry
期刊论文
DISCRETE DYNAMICS IN NATURE AND SOCIETY, 2016
Chen, Yanguang
;
Wang, Jiejing
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
SPATIOTEMPORAL EVOLUTION
CELLULAR-AUTOMATA
LAND-USE
DIMENSION
FORM
MORPHOLOGY
CITIES
GROWTH
DYNAMICS
SHAPE
Spatial Up-Scaling Correction for Leaf Area Index Based on the Fractal Theory
期刊论文
REMOTE SENSING, 2016
Wu, Ling
;
Qin, Qiming
;
Liu, Xiangnan
;
Ren, Huazhong
;
Wang, Jianhua
;
Zheng, Xiaopo
;
Ye, Xin
;
Sun, Yuejun
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
standard deviation
fractal theory
spatial heterogeneity
leaf area index
scaling effect correction
WHEAT YIELD ESTIMATION
REMOTE-SENSING DATA
WOFOST MODEL
NDVI
RESOLUTION
SURFACE
CLASSIFICATION
SEGMENTATION
UNCERTAINTY
VALIDATION
The evolution of Zipf's law indicative of city development
期刊论文
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2016
Chen, Yanguang
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
City-size distribution
Zipf&apos
Generalized 2(n) rule
Self-organized criticality
Fractal dimension
Urbanization
SELF-ORGANIZED CRITICALITY
SIZE DISTRIBUTIONS
CITIES
HIERARCHY
SYSTEMS
MODEL
s law
Terahertz Gyrotron Broadband Tuning Based on Local Field Shaping in a Low-Q Cavity
期刊论文
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2016
Li, Zheng-Di
;
Du, Chao-Hai
;
Luo, Li
;
Qi, Xiang-Bo
;
Liu, Pu-Kun
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2017/12/03
Dynamic nuclear polarization (DNP)
low-Q cavity
nuclear magnetic resonance (NMR)
second harmonic
terahertz (THz)
tunable gyrotron
ultralow voltage
DYNAMIC NUCLEAR-POLARIZATION
OPERATION
NMR
OSCILLATOR
椭圆极化激光场驱动下氢原子发射高次谐波的特点
期刊论文
科学通报, 2016
李伟
;
周效信
;
陈京
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
椭圆极化激光场
高次谐波
电子波包横向扩散
Interplay of Proximal Flow Confluence and Distal Flow Divergence in Patient-Specific Vertebrobasilar System
期刊论文
PLOS ONE, 2016
Yin, Xiaoping
;
Huang, Xu
;
Feng, Yundi
;
Tan, Wenchang
;
Liu, Huaijun
;
Huo, Yunlong
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/04
HEMODYNAMIC SHEAR-STRESS
CORONARY ARTERIAL TREE
BLOOD-FLOW
JUNCTION MODEL
SCALING LAWS
ATHEROSCLEROSIS
PATTERNS
VESSEL
ANGLE
ENDOTHELIUM
A Generalized Radiation Model for Human Mobility: Spatial Scale, Searching Direction and Trip Constraint
期刊论文
PLOS ONE, 2015
Kang, Chaogui
;
Liu, Yu
;
Guo, Diansheng
;
Qin, Kun
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
EXPONENTIAL LAW
POWER-LAW
PATTERNS
DISTANCE
Consistent rationalization of type-2 topoisomerases' unknotting, decatenating, supercoil-relaxing actions and their scaling relation
期刊论文
JOURNAL OF PHYSICS-CONDENSED MATTER, 2015
Liu, Zhirong
;
Chan, Hue Sun
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
wormlike DNA model
writhe
hooked-juxtaposition hypothesis
the bend-angle model
II DNA TOPOISOMERASES
NONEQUILIBRIUM TOPOLOGY SIMPLIFICATION
LOCAL JUXTAPOSITION GEOMETRY
ESCHERICHIA-COLI
CHIRAL DISCRIMINATION
STRUCTURAL BASIS
KNOTS
IV
MECHANISM
SELECTION
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