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科研机构
北京大学 [216]
内容类型
期刊论文 [157]
其他 [51]
会议论文 [8]
发表日期
2017 [25]
2016 [30]
2015 [23]
2014 [21]
2013 [27]
2012 [18]
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专题:北京大学
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Early Holocene palaeoseasonality inferred from the stable isotope composition of Unio shells from Catalhoyuk, Turkey
期刊论文
ENVIRONMENTAL ARCHAEOLOGY, 2017
Lewis, Jonathan P.
;
Leng, Melanie J.
;
Dean, Jonathan R.
;
Marciniak, Arkadiusz
;
Mayer, Daniella E. Bar-Yosef
;
Wu, Xiaohong
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2017/12/03
Catalhoyuk
Konya
Unio
Seasonal
Palaeoclimate
Stable isotopes
Neolithic
Holocene
EASTERN MEDITERRANEAN REGION
GLACIAL-INTERGLACIAL TRANSITION
ABRUPT CLIMATE-CHANGE
8.2 KA EVENT
KONYA BASIN
AEGEAN SEA
SOUTHWEST ASIA
NORTH-ATLANTIC
LAKE GOLHISAR
SAPROPEL S1
Tree-ring-based SPEI reconstruction in central Tianshan Mountains of China since AD 1820 and links to westerly circulation
期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2017
Jiang, Peng
;
Liu, Hongyan
;
Wu, Xiuchen
;
Wang, Hongya
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
SPEI
tree-ring width
Tianshan Mountains
DROUGHT SEVERITY INDEX
MOISTURE VARIABILITY
NORTH-ATLANTIC
CLIMATE-CHANGE
TIME-SERIES
VEGETATION
IMPACTS
HISTORY
DATASET
SHAN
区域生态安全格局构建研究进展与展望
期刊论文
地理研究, 2017
彭建
;
赵会娟
;
刘焱序
;
吴健生
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
生态安全格局
生态源地
生态廊道
阻力面
研究进展与展望
ecological security patterns
ecological source
ecological corridor
resistance surface
research progress and prospect
Examining the impacts of ethnicity on space-time behavior: Evidence from the City of Xining, China
期刊论文
CITIES, 2017
Tan, Yiming
;
Kwan, Mei-Po
;
Chai, Yanwei
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Ethnicity
Space-time behavior
Activity space
Ethnic minority
China
RESIDENTIAL SEGREGATION
SOCIAL EXCLUSION
EUROPEAN CITIES
PATTERNS
TRAVEL
PARTICIPATION
DEMOGRAPHICS
LOCATION
TWITTER
MODEL
Temperature increase reduces global yields of major crops in four independent estimates
期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017
Zhao, Chuang
;
Liu, Bing
;
Piao, Shilong
;
Wang, Xuhui
;
Lobell, David B.
;
Huang, Yao
;
Huang, Mengtian
;
Yao, Yitong
;
Bassu, Simona
;
Ciais, Philippe
;
Durand, Jean-Louis
;
Elliott, Joshua
;
Ewert, Frank
;
Janssens, Ivan A.
;
Li, Tao
;
Lin, Erda
;
Liu, Qiang
;
Martre, Pierre
;
Mueller, Christoph
;
Peng, Shushi
;
Penuelas, Josep
;
Ruane, Alex C.
;
Wallach, Daniel
;
Wang, Tao
;
Wu, Donghai
;
Liu, Zhuo
;
Zhu, Yan
;
Zhu, Zaichun
;
Asseng, Senthold
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2017/12/03
climate change impact
global food security
major food crops
temperature increase
yield
CLIMATE-CHANGE
WHEAT YIELDS
IMPACTS
GROWTH
RANGE
CHINA
FOOD
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
一种顾及区域特征差异的热红外与可见光图像多尺度融合方法
期刊论文
武汉大学学报(信息科学版), 2017
向天烛
;
高熔溶
;
闫利
;
徐振亮
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
图像融合
区域分割
脉冲耦合神经网络
Renyi熵
image fusion
region segmentation
pulse coupled neural network
renyi entropy
Mantle seismic anisotropy beneath NE China and implications for the lithospheric delamination hypothesis beneath the southern Great Xing'an range
期刊论文
EARTH AND PLANETARY SCIENCE LETTERS, 2017
Chen, Haichao
;
Niu, Fenglin
;
Obayashi, Masayuki
;
Grand, Stephen P.
;
Kawakatsu, Hitoshi
;
Chen, Y. John
;
Ning, Jieyuan
;
Tanaka, Satoru
收藏
  |  
浏览/下载:119/0
  |  
提交时间:2017/12/03
NE China
seismic anisotropy
lithosphere deformation
mantle flow
and delamination
CENOZOIC BASALTS
NORTHEAST CHINA
INNER-MONGOLIA
FLOW BENEATH
PACIFIC SLAB
ORIGIN
VOLCANISM
CRUSTAL
TOMOGRAPHY
PLATE
MMS observation of inverse energy dispersion in shock drift accelerated ions
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017
Lee, S. H.
;
Sibeck, D. G.
;
Hwang, K.J.
;
Wang, Y.
;
Silveira, M. V. D.
;
Chu, C.
;
Mauk, B. H.
;
Cohen, I. J.
;
Ho, G. C.
;
Mason, G. M.
;
Gold, R. E.
;
Burch, J. L.
;
Giles, B. L.
;
Torbert, R. B.
;
Russell, C. T.
;
Wei, H.
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
energetic ions
inverse energy dispersion
shock drift acceleration
shock transition
quasi-perpendicular bow shock
EARTHS BOW SHOCK
MULTI-SPACECRAFT OBSERVATIONS
UPSTREAM PRESSURE VARIATIONS
DIFFUSE IONS
E-GREATER-THAN-OR-EQUAL-TO-50 KEV
SOLAR-WIND
PARTICLE-ACCELERATION
DAYSIDE MAGNETOPAUSE
EVENTS
PROTONS
Magnetic fabric and structural deformation
期刊论文
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2017
Wang Kai
;
Jia Dong
;
Luo Liang
;
Dong Shu-Wen
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Magnetic fabric
AMS
Finite strain
Layer parallel shortening
Paleostress
Oblique magnetic lineation
SUSCEPTIBILITY ANISOTROPY
SOUTHERN PYRENEES
FINITE STRAIN
FAULT BELT
TECTONIC SIGNIFICANCE
APPALACHIAN-PLATEAU
MATHEMATICAL-MODEL
UNDEFORMED CLAYS
NEUTRON TEXTURE
DEFORMED ROCKS
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