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科研机构
北京大学 [355]
内容类型
期刊论文 [280]
其他 [67]
会议论文 [8]
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2017 [35]
2016 [23]
2015 [28]
2014 [35]
2013 [39]
2012 [29]
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专题:北京大学
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Spatiotemporal Assessment of Forest Biomass Carbon Sinks: The Relative Roles of Forest Expansion and Growth in Sichuan Province, China
期刊论文
JOURNAL OF ENVIRONMENTAL QUALITY, 2017
Li, Renqiang
;
Zhao, Shujie
;
Zhao, Haifeng
;
Xu, Ming
;
Zhang, Liyun
;
Wen, Hui
;
Sheng, Qingkai
收藏
  |  
浏览/下载:111/0
  |  
提交时间:2017/12/03
INVENTORY DATA
UNITED-STATES
STORAGE
EQUATIONS
DENSITY
STOCK
Carbon stocks and changes of dead organic matter in China's forests
期刊论文
NATURE COMMUNICATIONS, 2017
Zhu, Jianxiao
;
Hu, Huifeng
;
Tao, Shengli
;
Chi, Xiulian
;
Li, Peng
;
Jiang, Lai
;
Ji, Chengjun
;
Zhu, Jiangling
;
Tang, Zhiyao
;
Pan, Yude
;
Birdsey, Richard A.
;
He, Xinhua
;
Fang, Jingyun
收藏
  |  
浏览/下载:116/0
  |  
提交时间:2017/12/03
COARSE WOODY DEBRIS
BIOMASS CARBON
RELATIVE CONTRIBUTIONS
TEMPERATE FORESTS
CLIMATE-CHANGE
UNITED-STATES
ECOSYSTEMS
DYNAMICS
GROWTH
DISTURBANCE
Retrieving the gap fraction, element clumping index, and leaf area index of individual trees using single-scan data from a terrestrial laser scanner
期刊论文
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, 2017
Li, Yumei
;
Guo, Qinghua
;
Su, Yanjun
;
Tao, Shengli
;
Zhao, Kaiguang
;
Xu, Guangcai
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Destructive sample
Extinction coefficient
Single scanning
Terrestrial laser scanning
Riegl VZ-400
GROUND-BASED LIDAR
HEMISPHERICAL PHOTOGRAPHY
ANGLE DISTRIBUTION
FOREST STRUCTURE
PLANT CANOPIES
BOREAL FORESTS
STANDS
ARCHITECTURE
DERIVATION
DENSITY
Changes of soil organic and inorganic carbon in relation to grassland degradation in Northern Tibet
期刊论文
ECOLOGICAL RESEARCH, 2017
Liu, Shuli
;
Tang, Yanhong
;
Zhang, Fawei
;
Du, Yangong
;
Lin, Li
;
Li, Yikang
;
Guo, Xiaowei
;
Li, Qian
;
Cao, Guangmin
收藏
  |  
浏览/下载:108/0
  |  
提交时间:2017/12/03
Soil carbon
Grassland degradation
Carbon storage
Northern Tibet
QINGHAI PROVINCE
LAND DEGRADATION
CLIMATE-CHANGE
ALPINE MEADOW
CO2 EMISSIONS
CHINA
STORAGE
SEQUESTRATION
PLATEAU
MANAGEMENT
A multispacecraft study of a small flux rope entrained by rolling back magnetic field lines
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017
Huang, Jia
;
Liu, Yong C.M.
;
Peng, Jun
;
Li, Hui
;
Klecker, Berndt
;
Farrugia, Charles J.
;
Yu, Wenyuan
;
Galvin, Antoinette B.
;
Zhao, Liang
;
He, Jiansen
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
small flux rope
rolling back magnetic field lines
interchange reconnection
solar wind
SOLAR-WIND TRANSIENTS
CORONAL STREAMERS
STATISTICAL-ANALYSIS
SECTOR BOUNDARIES
CURRENT-SHEET
1 AU
STEREO
PLASMA
ORIGIN
INVERSIONS
A new Ca3MgSi2O8 compound and some of its thermodynamic properties
期刊论文
JOURNAL OF SOLID STATE CHEMISTRY, 2017
Bao, Xinjian
;
Zhang, Yanyao
;
Zhang, Zhigang
;
Zhang, Lifei
;
Liu, Xiaoyang
;
Dong, Jianjun
;
Liu, Xi
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
New Ca3MgSi2Os compound
Single-crystal X-ray diffraction
First-principles simulation
Compressibility
Heat capacity
Standard vibrational entropy
P2(1)/C-C2/C PHASE-TRANSITION
X-RAY
BEHAVIOR
SIMULATION
MERWINITE
MANTLE
FULL
Influence of Road Patterns on PM2.5 Concentrations and the Available Solutions: The Case of Beijing City, China
期刊论文
SUSTAINABILITY, 2017
Wang, Fang
;
Peng, Yaoyao
;
Jiang, Chunyan
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
road patterns
land-use
air pollution
sustainable city
LUR model
LAND-USE REGRESSION
FINE PARTICULATE MATTER
LONG-TERM EXPOSURE
AIR-POLLUTION
NITROGEN-DIOXIDE
AMBIENT PM2.5
UNITED-STATES
INTRAURBAN VARIABILITY
RESPIRATORY HEALTH
BLACK CARBON
PHYSICAL-CONSTRAINT-PRESERVING CENTRAL DISCONTINUOUS GALERKIN METHODS FOR SPECIAL RELATIVISTIC HYDRODYNAMICS WITH A GENERAL EQUATION OF STATE
其他
2017-01-01
Wu, Kailiang
;
Tang, Huazhong
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
equation of state
hydrodynamics
methods: numerical
shock waves
relativistic processes
IDEAL MHD EQUATIONS
FINITE-ELEMENT-METHOD
HIGH-ORDER SCHEMES
HYPERBOLIC CONSERVATION-LAWS
PIECEWISE PARABOLIC METHOD
FLUID-DYNAMICS
WENO LIMITERS
JETS
SIMULATIONS
CODE
Mean field study of a propagation-turnover lattice model for the dynamics of histone marking
其他
2017-01-01
Yao, Fan
;
Li, FangTing
;
Li, TieJun
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
histone marking
contact process
mean field approximation
boundary layer analysis
EPIGENETIC STATES
LYSINE 9
METHYLATION
CHROMATIN
HP1
HETEROCHROMATIN
CELLS
H3
MECHANISM
MEMORY
Cryo-EM structure of the DNA-PK holoenzyme
期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017
Sharif, Humayun
;
Li, Yang
;
Dong, Yuanchen
;
Dong, Liyi
;
Wang, Wei Li
;
Mao, Youdong
;
Wu, Hao
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
DNA repair
V(D)J recombination
NHEJ
cryo-EM
structure
DEPENDENT PROTEIN-KINASE
STRAND BREAK REPAIR
3-DIMENSIONAL STRUCTURE
ELECTRON-MICROSCOPY
CATALYTIC SUBUNIT
KU
COMPLEX
END
MECHANISM
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