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科研机构
北京大学 [107]
内容类型
期刊论文 [60]
其他 [47]
发表日期
2017 [9]
2016 [10]
2015 [8]
2014 [8]
2013 [11]
2012 [9]
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专题:北京大学
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A snow-free vegetation index for improved monitoring of vegetation spring green-up date in deciduous ecosystems
期刊论文
REMOTE SENSING OF ENVIRONMENT, 2017
Wang, Cong
;
Chen, Jin
;
Wu, Jin
;
Tang, Yanhong
;
Shi, Peijun
;
Black, T. Andrew
;
Zhu, Kai
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Vegetation phenology
Green-up date
Remote sensing
Snowmelt
NDPI
Climate change
DIGITAL REPEAT PHOTOGRAPHY
CARBON-DIOXIDE EXCHANGE
DIFFERENCE WATER INDEX
LAND-SURFACE PHENOLOGY
TIBETAN PLATEAU
GROWING-SEASON
BOREAL REGIONS
HIGH-LATITUDES
SATELLITE DATA
CLIMATE-CHANGE
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
Developing the Remote Sensing-Gash Analytical Model for Estimating Vegetation Rainfall Interception at Very High Resolution: A Case Study in the Heihe River Basin
期刊论文
REMOTE SENSING, 2017
Cui, Yaokui
;
Zhao, Peng
;
Yan, Binyan
;
Xie, Hongjie
;
Yu, Pengtao
;
Wan, Wei
;
Fan, Wenjie
;
Hong, Yang
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
rainfall interception
RS-Gash analytical model
high resolution
remote sensing
FOREST
VARIABILITY
CANOPY
TRMM
基于Creatar XModeling的地应力场模拟自动化系统研究
期刊论文
科学技术与工程, 2017
刘振
;
吴耕宇
;
杨博
;
潘懋
;
刘培刚
;
贾志宾
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
有限元
地应力
三维地质建模
岩石力学参数
建模效率
系统一体化
finite element
in-situ stress
three-dimensional geological modeling
rock mechanics parameters
modeling efficiency
integrated system
面向复杂构造的油藏数值模拟网格剖分算法
期刊论文
计算机与数字工程, 2017
孙鹏
;
曹凯
;
张慧
;
贾志宾
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
网格
六面体
油藏数值模拟
复杂构造
Key Word grid
hexahedron
numerical simulation of reservoir
complex structure
Small area estimation strategies for large population surveys: acomparison of design and model-based methods
其他
2017-01-01
Li, Zhaonan
;
Xu, Xinyi
;
Lu, Bo
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Direct estimate
synthetic estimate
composite estimate
benchmarking
Bayesian hierarchical modeling
Ohio medicaid assessment survey
ERROR
RAIM and AUKF for GNSS Performance Enhancement in Multi-Constellation
其他
2017-01-01
Meng, F. C.
;
Meng, X.
;
Tao, L.
;
Sun, J. R.
;
Niu, Z.
;
Zhu, B. C.
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
GNSS
Satellite selection
GDOP
RAIM
FDE
AUKF
SATELLITE SELECTION ALGORITHM
GPS
Power Distortion Optimization for Uncoded Linear Transformed Transmission of Images and Videos
期刊论文
IEEE TRANSACTIONS ON IMAGE PROCESSING, 2017
Xiong, Ruiqin
;
Zhang, Jian
;
Wu, Feng
;
Xu, Jizheng
;
Gao, Wen
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Image and video transmission
wireless video broadcast
uncoded transmission
decorrelation transform
power distortion optimization
signal energy modeling
UNEQUAL ERROR PROTECTION
WIRELESS VISUAL COMMUNICATION
NOISY CHANNELS
PROGRESSIVE TRANSMISSION
LIMITED RETRANSMISSION
RATE ALLOCATION
FADING CHANNEL
MOTION
COMPRESSION
FRAMEWORK
Stress attenuates the flexible updating of aversive value
期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017
Raio, Candace M.
;
Hartley, Catherine A.
;
Orederu, Temidayo A.
;
Li, Jian
;
Phelps, Elizabeth A.
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
threat
stress
reversal learning
cognitive flexibility
computational modeling
ACUTE PSYCHOSOCIAL STRESS
COGNITIVE FLEXIBILITY
LOCUS-COERULEUS
HUMAN BRAIN
MEMORY
MODEL
FEAR
RESPONSES
NEURONS
ANXIETY
Spatial distribution of forest aboveground biomass in China: Estimation through combination of spaceborne lidar, optical imagery, and forest inventory data
期刊论文
REMOTE SENSING OF ENVIRONMENT, 2016
Su, Yanjun
;
Guo, Qinghua
;
Xue, Baolin
;
Hu, Tianyu
;
Alvarez, Otto
;
Tao, Shengli
;
Fang, Jingyun
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
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
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