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科研机构
北京大学 [44]
内容类型
期刊论文 [26]
其他 [15]
会议论文 [3]
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2017 [5]
2016 [5]
2015 [3]
2014 [2]
2013 [2]
2012 [7]
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专题:北京大学
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Estimating structural parameters of agricultural crops from ground-based multi-angular digital images with a fractional model of sun and shade components
期刊论文
AGRICULTURAL AND FOREST METEOROLOGY, 2017
Mu, Xihan
;
Hu, Ronghai
;
Zeng, Yelu
;
McVicar, Tim R.
;
Ren, Huazhong
;
Song, Wanjuan
;
Wang, Yuanyuan
;
Casa, Raffaele
;
Qi, Jianbo
;
Xie, Donghui
;
Yan, Guangjian
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Leaf area index
Leaf angle distribution
Bidirectional gap fraction
Sun and shade leaves and soil
Field measurement
Canopy reflectance
LEAF-AREA INDEX
DIRECTIONAL BRIGHTNESS TEMPERATURE
SIZE ANALYSIS THEORY
VEGETATION COVER
HEMISPHERICAL PHOTOGRAPHY
PLANT CANOPIES
ROW CROPS
EXTINCTION COEFFICIENT
BROADLEAF CANOPIES
ANGLE DISTRIBUTION
A Robust Inversion Algorithm for Surface Leaf and Soil Temperatures Using the Vegetation Clumping Index
期刊论文
REMOTE SENSING, 2017
Bian, Zunjian
;
Cao, Biao
;
Li, Hua
;
Du, Yongming
;
Song, Lisheng
;
Fan, Wenjie
;
Xiao, Qing
;
Liu, Qinhuo
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
land surface component temperature
directional remote sensing
vegetation clumping index
DIRECTIONAL BRIGHTNESS TEMPERATURE
THERMAL INFRARED OBSERVATIONS
COMPONENT TEMPERATURES
ENERGY FLUXES
CANOPY
EMISSIVITY
RETRIEVAL
MODEL
CROP
REFLECTANCE
Entropy of Primitive: From Sparse Representation to Visual Information Evaluation
期刊论文
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2017
Ma, Siwei
;
Zhang, Xiang
;
Wang, Shiqi
;
Zhang, Jian
;
Sun, Huifang
;
Gao, Wen
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Entropy of primitive (EoP)
just-noticeable difference (JND)
orthogonal matching pursuit
sparse representation
visual information
NOTICEABLE-DISTORTION PROFILE
IMAGE QUALITY ASSESSMENT
VIDEO
DICTIONARIES
RESTORATION
DIFFERENCE
RECOVERY
DOMAIN
MODEL
Blind restoration for nonuniform aerial images using nonlocal Retinex model and shearlet-based higher-order regularization
期刊论文
JOURNAL OF ELECTRONIC IMAGING, 2017
Chen, Rui
;
Jia, Huizhu
;
Xie, Xiaodong
;
Gao, Wen
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
blind restoration
nonuniform illumination correction
nonlocal Retinex
discrete nonseparable shearlet transform
total generalized variation
PRESERVING REGULARIZATION
ATMOSPHERIC-TURBULENCE
SPARSE REPRESENTATION
SINGLE IMAGE
DECONVOLUTION
ALGORITHMS
RECOVERY
Refractive index engineering of high performance coupler for compact photonic integrated circuits
期刊论文
JAPANESE JOURNAL OF APPLIED PHYSICS, 2017
Liu, Lu
;
Zhou, Zhiping
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
SILICON-ON-INSULATOR
POLARIZATION BEAM SPLITTER
MULTIMODE INTERFERENCE COUPLER
2-DIMENSIONAL GRATING COUPLER
SLOT WAVE-GUIDES
FABRICATION-TOLERANT
DIRECTIONAL COUPLER
SUBWAVELENGTH GRATINGS
HIGH-EFFICIENCY
OPTICAL-FIBERS
Two cases of convecting structure in the slow solar wind turbulence
其他
2016-01-01
Tu, Chuanyi
;
Wang, Xin
;
He, Jiansen
;
Marsch, Eckart
;
Wang, Linghua
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
MAGNETOHYDRODYNAMIC TURBULENCE
Directional Growth of One-Dimensional CO2 Chains on ZnO(10(1)over-bar0)
期刊论文
JOURNAL OF PHYSICAL CHEMISTRY C, 2016
Shi, Hong
;
Ruan, Shiqi
;
Liu, Huihui
;
Wang, Li
;
Wang, Wenyuan
;
Ren, Xinguo
;
Wang, Bing
;
Wu, Kai
;
Shao, Xiang
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
MINIMUM ENERGY PATHS
ELASTIC BAND METHOD
ELECTRONIC-STRUCTURE
CARBON-DIOXIDE
METHANOL SYNTHESIS
SADDLE-POINTS
ZNO SURFACES
ADSORPTION
SPECTROSCOPY
CATALYSTS
Preparation of Horizontal Single-Walled Carbon Nanotubes Arrays
期刊论文
TOPICS IN CURRENT CHEMISTRY, 2016
Li, Pan
;
Zhang, Jin
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
SWNT array
Semiconducting
Selective growth
Self-assembly
CHEMICAL-VAPOR-DEPOSITION
SEMICONDUCTING SWNT ARRAYS
HIGH-PERFORMANCE ELECTRONICS
DENSITY PARALLEL ARRAYS
THIN-FILM TRANSISTORS
FIELD-DIRECTED GROWTH
CATALYST-FREE GROWTH
ALIGNED ARRAYS
LARGE-SCALE
LARGE-AREA
Optimal embodied energy abatement strategy for Beijing economy: Based on a three-scale input-output analysis
期刊论文
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2016
Li, J. S.
;
Xia, X. H.
;
Chen, G. Q.
;
Alsaedi, A.
;
Hayat, T.
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Beijing
Three-scale input-output analysis
Abatement strategy
Embodied energy
DIRECTIONAL DISTANCE FUNCTION
CO2 EMISSION PERFORMANCE
GREENHOUSE-GAS EMISSIONS
ELECTRICITY-GENERATION
INTERNATIONAL-TRADE
GAMING INDUSTRY
WORLD-ECONOMY
RESOURCES USE
CHINA
MACAO
Global and Local Saliency Analysis for the Extraction of Residential Areas in High-Spatial-Resolution Remote Sensing Image
期刊论文
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2016
Zhang, Libao
;
Li, Aoxue
;
Zhang, Zhongjun
;
Yang, Kaina
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/04
Adaptive directional enhancement lifting wavelet transform (ADE-LWT)
image processing
quaternion Fourier transform (QFT)
remote sensing
saliency analysis
VISUAL-ATTENTION
WAVELET TRANSFORM
REGION DETECTION
MODEL
FRAMEWORK
AERIAL
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