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科研机构
北京大学 [438]
内容类型
期刊论文 [329]
其他 [91]
会议论文 [18]
发表日期
2017 [32]
2016 [48]
2015 [29]
2014 [42]
2013 [28]
2012 [34]
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专题:北京大学
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Mapping Development Pattern in Beijing-Tianjin-Hebei Urban Agglomeration Using DMSP/OLS Nighttime Light Data
期刊论文
REMOTE SENSING, 2017
Hu, Yi&apos
;
Peng, Jian
;
Liu, Yanxu
;
Du, Yueyue
;
Li, Huilei
;
Wu, Jiansheng
;
na
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
spatial inequality
urbanization type
DMSP/OLS
Beijing-Tianjin-Hebei urban agglomeration
CHINA
URBANIZATION
MEGALOPOLIS
PERSPECTIVE
EXPANSION
DYNAMICS
CITY
OLS
INEQUALITY
LUMINOSITY
北京地区PM2.5浓度与气象要素的相关分析
期刊论文
北京大学学报 自然科学版, 2017
周一敏
;
赵昕奕
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
北京
边界层内气象要素
PM2.5
Beijing
PM2.5
the meteorological conditions in planetary boundary layer
Stromatolites near the Permian-Triassic boundary in Chongyang, Hubei Province, South China: A geobiological window into palaeo-oceanic fluctuations following the end-Permian extinction
期刊论文
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2017
Adachi, Natsuko
;
Asada, Yuya
;
Ezaki, Yoichi
;
Liu, Jianbo
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Extinction
Microbialite
Ocean condition
South China
Stromatolite
WESTERN UNITED-STATES
MASS EXTINCTION
NANPANJIANG BASIN
GUIZHOU PROVINCE
PALEOENVIRONMENTAL SIGNIFICANCE
DOLOMITE PRECIPITATION
MARINE STROMATOLITES
ENVIRONMENTAL-CHANGE
SICHUAN PROVINCE
GREAT BANK
BOUNDED VERY WEAK SOLUTIONS FOR SOME NON UNIFORMLY ELLIPTIC EQUATION WITH L-1 DATUM
其他
2017-01-01
Zhang, Chao
;
Zhou, Shulin
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Very weak solutions
existence
elliptic
non-uniformly
L-1 datum
ENTROPY SOLUTIONS
UNIQUENESS
EXISTENCE
MINIMIZERS
INTEGRALS
Elliptic estimates for the Dirichlet-Neumann operator on a corner domain
其他
2017-01-01
Ming, Mei
;
Wang, Chao
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Elliptic estimate
Dirichlet-Neumann operator
corner domains
water waves problem
BOUNDARY-VALUE-PROBLEMS
GENERAL EDGE ASYMPTOTICS
STABLE ASYMPTOTICS
WELL-POSEDNESS
PLANE DOMAINS
EQUATIONS
2ND-ORDER
POINTS
COEFFICIENTS
WAVES
Transition of Defect Patterns from 2D to 3D in Liquid Crystals
其他
2017-01-01
Qu, Yang
;
Wei, Ying
;
Zhang, Pingwen
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Transition of defects
liquid crystal
Landau-de Gennes model
spectral method
DE-GENNES THEORY
NEMATIC EMULSIONS
ORDER
Parity-decomposition and moment analysis for stationary Wigner equation with inflow boundary conditions
其他
2017-01-01
Ruo LI
;
Tiao LU
;
Zhangpeng SUN
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  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
Stationary Wigner equation inflow boundary conditions well-posedness parity-decomposition moment analysis
Stationary Wigner equation
inflow boundary conditions
well-posedness
parity-decomposition
moment analysis
RESONANT-TUNNELING DIODES
SIMULATION
MASS
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
Computing Optimal Interfacial Structure of Modulated Phases
其他
2017-01-01
Xu, Jie
;
Wang, Chu
;
Shi, An-Chang
;
Zhang, Pingwen
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Interface
modulated phase
metastable state
compatibility
Landau-Brazovskiimodel
BLOCK-COPOLYMERS
NONUNIFORM SYSTEM
GRADIENT METHODS
FREE-ENERGY
NUCLEATION
DEFECTS
MIXTURE
MODEL
Performance Evaluation of the WRF-Chem Model with Different Physical Parameterization Schemes during an Extremely High PM2.5 Pollution Episode in Beijing
期刊论文
AEROSOL AND AIR QUALITY RESEARCH, 2017
Chen, Dongsheng
;
Xie, Xin
;
Zhou, Ying
;
Lang, Jianlei
;
Xu, Tingting
;
Yang, Nan
;
Zhao, Yuehua
;
Liu, Xiangxue
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
Heavy haze pollution
Numerical simulation
Physical parameterization schemes
ATMOSPHERIC BOUNDARY-LAYER
REGIONAL AIR-QUALITY
LAKE-MICHIGAN OZONE
PREDICTIONS
SENSITIVITY
WRF/CHEM
AEROSOL
RADIATION
ENSEMBLE
SYSTEM
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