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科研机构
北京大学 [341]
内容类型
期刊论文 [257]
其他 [81]
会议论文 [3]
发表日期
2017 [32]
2016 [35]
2015 [30]
2014 [32]
2013 [19]
2012 [17]
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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
Assessment of the Daily Cloud-Free MODIS Snow-Cover Product for Monitoring the Snow-Cover Phenology over the Qinghai-Tibetan Plateau
期刊论文
REMOTE SENSING, 2017
Xu, Wenfang
;
Ma, Hanqing
;
Wu, Donghai
;
Yuan, Wenping
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
snow
MODIS
snow cover phenology
in situ snow depth
FSC threshold
NORTHERN XINJIANG
VALIDATION
CLIMATE
TURKEY
CHINA
VARIABILITY
RUNOFF
COMBINATION
DYNAMICS
IMPACTS
城市景观格局对城市内涝的影响研究——以深圳市为例
期刊论文
地理学报, 2017
吴健生
;
张朴华
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
景观格局
土地利用
城市内涝
深圳市
landscape pattern
land use
urban waterlogging
Shenzhen
The discovery of late Triassic mylonitic granite and geologic significance in the middle Gangdese batholiths, southern Tibet
期刊论文
JOURNAL OF GEODYNAMICS, 2017
Ma, Shiwei
;
Meng, Yuanku
;
Xu, Zhiqin
;
Li, Xiaojia
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
Zircon U-Pb ages and Lu-Hf isotopes
Geochemistry
Mylonitic granite
Late triassic
Gangdese batholiths
ZIRCON U-PB
LACHLAN FOLD BELT
LHASA TERRANE IMPLICATIONS
VOLCANIC-ROCKS
HF-ISOTOPE
NEO-TETHYS
TECTONIC SIGNIFICANCE
ARC MAGMAS
S-TYPE
LU-HF
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
Early Devonian back-arc extension in the eastern Central Asian Orogenic Belt: Evidence from a bimodal volcanic sequence from Xilinhot, central Inner Mongolia (North China)
期刊论文
JOURNAL OF ASIAN EARTH SCIENCES, 2017
Liao, Wen
;
Xu, Bei
;
Wang, Yanyang
;
Zhao, Pan
;
Li, Qunsheng
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Bimodal volcanic rocks
Back-arc extension
Central Asian Orogenic Belt
Inner Mongolia
U-PB GEOCHRONOLOGY
TECTONIC IMPLICATIONS
FRACTIONAL CRYSTALLIZATION
ZIRCON GEOCHRONOLOGY
SOLONKER SUTURE
CRUSTAL GROWTH
IGNEOUS ROCKS
HF ISOTOPES
CONSTRAINTS
EVOLUTION
Ensemble-based optimization of interwell connectivity in heterogeneous waterflooding reservoirs
期刊论文
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2017
Wang, Daigang
;
Li, Yong
;
Chen, Bailian
;
Hu, Yongle
;
Li, Baozhu
;
Gao, Dapeng
;
Fu, Bing
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Capacitance-resistance model
Koval fractional-flow equation
Interwell connectivity
Ensemble-based optimization technique
Hybrid nonlinear constraint
CAPACITANCE/RESISTANCE MODEL
ALGORITHM
Contrasting geochemical signatures between Upper Triassic Mo-hosting and barren granitoids in the central segment of the South Qinling orogenic belt, central China: Implications for Mo exploration
期刊论文
ORE GEOLOGY REVIEWS, 2017
Xiao, Bing
;
Li, Qiugen
;
He, Siyao
;
Chen, Xu
;
Liu, Huwen
;
Wang, Zongqi
;
Xu, Xueyi
;
Chen, Junlu
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Zircon U-Pb age
Sr-Nd-Hf isotopes
molybdenum deposits
highly fractionated I-type granitoids
Qinling orogenic
PLASMA-MASS SPECTROMETRY
PB ZIRCON GEOCHRONOLOGY
TRACE-ELEMENTS
TECTONIC IMPLICATIONS
ISOTOPIC SYSTEMATICS
MOLYBDENUM DEPOSITS
MIDDLE-SEGMENT
ICP-MS
ROCKS
HF
Petrogenesis and mineralization of REE-rich granites in Qingxi and Guanxi, Nanling region, South China
期刊论文
ORE GEOLOGY REVIEWS, 2017
He, Chen
;
Xu, Cheng
;
Zhao, Zheng
;
Kynicky, Jindrich
;
Song, Wenlei
;
Wang, Lize
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
Granite
Petrogenesis
REE mineralization
Basement rocks
South China
A-TYPE GRANITES
SE CHINA
GEOCHEMICAL CHARACTERISTICS
PALEOMAGNETIC CONSTRAINTS
SOUTHEASTERN AUSTRALIA
TECTONIC SIGNIFICANCE
ISOTOPIC EVIDENCE
JIANGXI PROVINCE
STRANGE LAKE
ORIGIN
The Pobei Cu-Ni and Fe ore deposits in NW China are comagmatic evolution products: evidence from ore microscopy, zircon U-Pb chronology and geochemistry
期刊论文
GEOLOGICA ACTA, 2017
Liu, Y. G.
;
Li, W. Y.
;
Lue, X. B.
;
Huo, Y. H.
;
Zhang, B.
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Magmatic Cu-Ni sulfide deposit
Xiaochangshan Fe deposit
Crystallization differentiation
Magnetite-mineralized gabbro
Beishan
Early Permian
MAFIC-ULTRAMAFIC INTRUSIONS
MAGMATIC SULFIDE DEPOSITS
PLATINUM-GROUP ELEMENTS
EASTERN TIANSHAN
TRACE-ELEMENT
OROGENIC BELT
SILICATE MELT
CENTRAL-ASIA
ICP-MS
FRACTIONAL CRYSTALLIZATION
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