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科研机构
北京大学 [309]
内容类型
期刊论文 [269]
其他 [40]
发表日期
2017 [10]
2016 [19]
2015 [7]
2014 [10]
2013 [14]
2012 [16]
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专题:北京大学
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Bias and association of sediment organic matter source apportionment indicators: A case study in a eutrophic Lake Chaohu, China
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2017
Xu, Fu-Liu
;
Yang, Chen
;
He, Wei
;
He, Qi-Shuang
;
Li, Yi-Long
;
Kang, Lei
;
Liu, Wen-Xiu
;
Xiong, Yong-Qiang
;
Xing, Baoshan
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Sediments organic matter
Source apportionment
Lipid molecular biomarkers
Isotope fingerprinting
Lake Chaohu
N-ALKANES
PHYTOPLANKTON COMMUNITY
SURFACE SEDIMENT
ISOTOPE RATIOS
FATTY-ACIDS
CARBON
HYDROCARBONS
RIVER
CORE
DISTRIBUTIONS
Changes in nutrient concentrations of leaves and roots in response to global change factors
期刊论文
GLOBAL CHANGE BIOLOGY, 2017
Sardans, Jordi
;
Grau, Oriol
;
Chen, Han Y. H.
;
Janssens, Ivan A.
;
Ciais, Philippe
;
Piao, Shilong
;
Penuelas, Josep
收藏
  |  
浏览/下载:1/0
  |  
提交时间:2017/12/03
CO2
drought
ecological stoichiometry
N deposition
N:P
nitrogen
phosphorus
PHOSPHORUS FERTILIZATION
NITROGEN-FERTILIZATION
PRIMARY PRODUCTIVITY
INSECT HERBIVORE
PLANT BIOMASS
SOIL
STOICHIOMETRY
DROUGHT
FOREST
CO2
内蒙古二连浩特东北部花岗岩的年代学、地球化学特征及构造意义
期刊论文
岩石矿物学杂志, 2017
孔令杰
;
韩宝福
;
郑波
;
冯丽霞
;
王增振
;
苏犁
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
A型花岗岩
锆石U-Pb定年
地球化学特征
伸展构造背景
二连东北部
A-type granites
zircon U-Pb dating
geochemical features
extensional setting
Northeast Erenhot
The Mongol-Okhotsk Ocean subduction-related Permian peraluminous granites in northeastern Mongolia: Constraints from zircon U-Pb ages, whole-rock elemental and Sr-Nd-Hf isotopic compositions
期刊论文
JOURNAL OF ASIAN EARTH SCIENCES, 2017
Zhao, Pan
;
Xu, Bei
;
Jahn, Bor-Ming
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
S-type granite
Permian
Northeastern Mongolia
Mongol-Okhotsk Ocean
Central Asian Orogenic Belt
ASIAN OROGENIC BELT
LACHLAN FOLD BELT
COLLECTOR ICP-MS
A-TYPE GRANITES
GEOCHEMICAL CONSTRAINTS
TECTONIC SIGNIFICANCE
CRUSTAL GROWTH
NORTH CHINA
WESTERN TRANSBAIKALIA
ALKALINE GRANITES
The Origin of Solar Filament Plasma Inferred from In Situ Observations of Elemental Abundances
期刊论文
ASTROPHYSICAL JOURNAL LETTERS, 2017
Song, H. Q.
;
Chen, Y.
;
Li, B.
;
Li, L. P.
;
Zhao, L.
;
He, J. S.
;
Duan, D.
;
Cheng, X.
;
Zhang, J.
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Sun: abundances
Sun: coronal mass ejections (CMEs)
Sun: filaments, prominences
CORONAL MASS EJECTIONS
CYCLE 23
WIND
ACE
REGION
DISTRIBUTIONS
SPACECRAFT
PROTONS
MISSION
SWICS
Synthesis and characterization of a new ion-imprinted polymer for the selective separation of thorium(IV) ions at high acidity
期刊论文
RSC ADVANCES, 2017
Liang, Hele
;
Chen, Qingde
;
Ma, Jingyuan
;
Huang, Yuying
;
Shen, Xinghai
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
SOLID-PHASE EXTRACTION
GRAFTED TH(IV)-IMPRINTED POLYMERS
AQUEOUS-SOLUTION
BIOLOGICAL SAMPLES
PRECONCENTRATION
TH(IV)
URANIUM(VI)
REMOVAL
SOLVENT
Synthesis and Characterization of a Layered Silicogermanate PKU-22 and Its Topotactic Condensation to a Three-Dimensional STI-type Zeolite
期刊论文
CRYSTAL GROWTH & DESIGN, 2017
Chen, Yanping
;
Huang, Shiliang
;
Wang, Xiaoge
;
Zhang, Lei
;
Wu, Ningning
;
Liao, Fuhui
;
Wang, Yingxia
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
LARGE-PORE ZEOLITE
HIGH-SILICA ZEOLITE
FER-TYPE ZEOLITE
CRYSTAL-STRUCTURE
2-DIMENSIONAL ZEOLITES
CATALYTIC APPLICATIONS
BOROSILICATE ZEOLITE
MICROPOROUS ZEOLITE
FRAMEWORK DENSITY
MOLECULAR-SIEVE
Hydrothermal Synthesis and Structural Characterization of a New Hybrid Zinc Borate, [Zn(dap)(2)][B4O6(OH)(2)]
期刊论文
JOURNAL OF CLUSTER SCIENCE, 2017
Wei, Li
;
Sun, Ai-Huan
;
Xue, Zhen-Zhen
;
Pan, Jie
;
Wang, Guo-Ming
;
Wang, Ying-Xia
;
Wang, Zong-Hua
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2017/12/03
Zinc borate
Hybrid structure
Borate cluster
Crystal structure
ISOLATED POLYBORATE ANIONS
CRYSTAL-STRUCTURE
OXOBORON CLUSTERS
OPEN-FRAMEWORK
1ST EXAMPLES
NONMETAL
CHEMISTRY
OXOANION
FAMILY
CHAINS
Novel bis(phthalocyaninato) rare earth complexes with the bulky and strong electron-donating dibutylamino groups: synthesis, spectroscopy, and SMM properties
期刊论文
INORGANIC CHEMISTRY FRONTIERS, 2017
Chen, Yuxiang
;
Ma, Fang
;
Chen, Xiaoxiang
;
Dong, Bowei
;
Wang, Kang
;
Jiang, Shangda
;
Wang, Chiming
;
Chen, Xin
;
Qi, Dongdong
;
Sun, Haoling
;
Wang, Bingwu
;
Gao, Song
;
Jiang, Jianzhuang
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
SINGLE-MOLECULE MAGNETS
SANDWICH-TYPE (NA)PHTHALOCYANINATO
FIELD-EFFECT TRANSISTORS
DOUBLE-DECKER COMPLEXES
THIN-FILM TRANSISTORS
F-F INTERACTIONS
INFRARED-SPECTRA
TRIS(PHTHALOCYANINATO) EUROPIUM(III)
PERIPHERAL SUBSTITUTION
MAGNETIZATION REVERSAL
Particulate pollution in urban Chongqing of southwest China: Historical trends of variation, chemical characteristics and source apportionment
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2017
Chen, Yuan
;
Xie, Shao-dong
;
Luo, Bin
;
Zhai, Chong-zhi
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
PM
Chemical composition
Source apportionment
Chongqing
POSITIVE MATRIX FACTORIZATION
AIR-POLLUTION
CARBONACEOUS AEROSOL
ELEMENTAL CARBON
SEASONAL TRENDS
TRACE-ELEMENTS
PM2.5 MASS
CITIES
EMISSIONS
EXPOSURE
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