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科研机构
北京大学 [438]
内容类型
期刊论文 [254]
其他 [169]
会议论文 [15]
发表日期
2017 [32]
2016 [51]
2015 [52]
2014 [39]
2013 [32]
2012 [28]
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专题:北京大学
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An Improved Estimation of Regional Fractional Woody/Herbaceous Cover Using Combined Satellite Data and High-Quality Training Samples
期刊论文
REMOTE SENSING, 2017
Liu, Xu
;
Liu, Hongyan
;
Qiu, Shuang
;
Wu, Xiuchen
;
Tian, Yuhong
;
Hao, Qian
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
vegetation fractional cover
semi-arid area
MODIS
satellite data integration
spatial sampling design
image classification
Random Forest regression
model performance evaluation
LAND-COVER
INNER-MONGOLIA
MODIS DATA
VEGETATION
SURFACE
STEPPE
FOREST
COEXISTENCE
TOPOGRAPHY
TRANSITION
Evaluation of passive sampling of gaseous mercury using different sorbing materials
期刊论文
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2017
Lin, Huiming
;
Zhang, Wei
;
Deng, Chunyan
;
Tong, Yingdong
;
Zhang, Qianggong
;
Wang, Xuejun
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Passive sampler
Gaseous mercury
Sampling rate
Sorbing material
Uptake curve
PERSISTENT ORGANIC POLLUTANTS
IMPREGNATED ACTIVATED CARBON
ATMOSPHERIC MERCURY
ELEMENTAL MERCURY
METEOROLOGICAL FACTORS
DRY DEPOSITION
AIR SAMPLERS
AMBIENT AIR
ADSORPTION
CHINA
Effects of canyon geometry on the distribution of traffic-related air pollution in a large urban area: Implications of a multi-canyon air pollution dispersion model
期刊论文
ATMOSPHERIC ENVIRONMENT, 2017
Fu, Xiangwen
;
Liu, Junfeng
;
Ban-Weiss, George A.
;
Zhang, Jiachen
;
Huang, Xin
;
Ouyang, Bin
;
Popoola, Olalekan
;
Tao, Shu
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Street canyon
Canyon geometry
Traffic pollutant
Urban air pollution
LARGE-EDDY SIMULATION
STREET CANYONS
PERFORMANCE EVALUATION
STRATEGIC GUIDELINES
FLOW
QUALITY
WIND
CFD
NETWORK
FIELD
基于照度调整的矿井非均匀照度视频图像增强算法
期刊论文
煤炭学报, 2017
智宁
;
毛善君
;
李梅
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
非均匀照度
多尺度引导滤波
亮度调整
细节增强参数
照度增强系数
non-uniform illumination
multiscale guided filter
illumination adjustment
detail enhancement coefficient
the illumination enhancement coefficient
Mining parameter information for building extraction and change detection with very high-resolution imagery and GIS data
期刊论文
GISCIENCE & REMOTE SENSING, 2017
Guo, Zhou
;
Du, Shihong
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
parameter mining
GIS data
VHR imagery
building extraction
change detection
REMOTE-SENSING DATA
SCALE PARAMETER
IKONOS IMAGERY
SURFACE MODELS
CLASSIFICATION
SEGMENTATION
SELECTION
MULTIRESOLUTION
ATTRIBUTES
ALGORITHMS
Mapping of Urban Surface Water Bodies from Sentinel-2 MSI Imagery at 10 m Resolution via NDWI-Based Image Sharpening
期刊论文
REMOTE SENSING, 2017
Yang, Xiucheng
;
Zhao, Shanshan
;
Qin, Xuebin
;
Zhao, Na
;
Liang, Ligang
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
water extraction
water indices
Sentinel-2
multi-spectral remote sensing mapping
LANDSAT 8 OLI
SPECTRAL INDEXES
EXTRACTION
CLASSIFICATION
CLASSIFIERS
ALGORITHM
FEATURES
RIVERS
BAND
Statistical evaluation of adding multiple risk factors improves Framingham stroke risk score
其他
2017-01-01
Zhou, Xiao-Hua
;
Wang, Xiaonan
;
Duncan, Ashlee
;
Hu, Guizhou
;
Zheng, Jiayin
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Framingham model
C-statistics
Synthesis analysis
NRI
Discrimination
Calibration
Reclassification
BODY-MASS INDEX
PROSPECTIVE OPEN COHORT
CORONARY-HEART-DISEASE
NON-HISPANIC WHITES
MIDDLE-AGED ADULTS
ISCHEMIC-STROKE
SYSTEMATIC ANALYSIS
PREDICTION MODELS
FOLLOW-UP
WOMEN
Systematic review of next-generation sequencing simulators: computational tools, features and perspectives
期刊论文
BRIEFINGS IN FUNCTIONAL GENOMICS, 2017
Zhao, Min
;
Liu, Di
;
Qu, Hong
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
simulator
high-throughput next-generation sequencing
COPY NUMBER VARIATION
MODEL BASED SIMULATOR
READS SIMULATOR
GENOME
ACCURATE
ALGORITHMS
METAGENOMICS
DATASETS
PROGRAM
Synergistic effects of thermal expansion-induced variation in the electrode microstructure on polarization loss in solid oxide fuel cells
期刊论文
JOURNAL OF MATERIALS CHEMISTRY A, 2017
Wen, Kechun
;
Tan, Chao
;
He, Weidong
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
DIFFUSIVITY MEASUREMENT
NANOSTRUCTURED ELECTRODES
ELECTROCHEMICAL DEVICE
GAS-TRANSPORT
PERFORMANCE
STRAIN
ANODE
CONDUCTIVITY
DURABILITY
TORTUOSITY
Construction of Synergistic Fe5C2/Co Heterostructured Nanoparticles as an Enhanced Low Temperature Fischer-Tropsch Synthesis Catalyst
期刊论文
ACS CATALYSIS, 2017
Yang, Ce
;
Zhao, Bo
;
Gao, Rui
;
Yao, Siyu
;
Zhai, Peng
;
Li, Siwei
;
Yu, Jing
;
Hou, Yanglong
;
Ma, Ding
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Fe5C2
cobalt
synergistic
low temperature
Fischer-Tropsch synthesis
COBALT PARTICLE-SIZE
FE-CO/TIO2 BIMETALLIC CATALYSTS
FE-CO
IRON
PHASE
HYDROGENATION
SELECTIVITY
BEHAVIOR
SYNGAS
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