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科研机构
北京大学 [321]
内容类型
期刊论文 [313]
其他 [8]
发表日期
2017 [12]
2016 [30]
2015 [18]
2014 [19]
2013 [22]
2012 [19]
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共321条,第1-10条
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专题:北京大学
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Different composition and distribution patterns of mineral-protected versus hydrolyzable lipids in shrubland soils
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 2017
Cai, Yue
;
Tang, Zhiyao
;
Xiong, Gaoming
;
Xie, Zongqiang
;
Liu, Zongguang
;
Feng, Xiaojuan
收藏
  |  
浏览/下载:120/0
  |  
提交时间:2017/12/03
physical protection
cutin and suberin
microbial carbon
environmental influences
accumulation mechanism
ORGANIC-MATTER
FOREST SOILS
HYDROFLUORIC-ACID
CARBON STORAGE
MICROBIAL COMMUNITIES
LITTER DECOMPOSITION
MAGNETIC-MATERIALS
AGRICULTURAL SOIL
ALIPHATIC LIPIDS
WESTERN CANADA
Association of 16 priority polycyclic aromatic hydrocarbons with humic acid and humin fractions in a peat soil and implications for their long-term retention
期刊论文
ENVIRONMENTAL POLLUTION, 2017
Chen, Weixiao
;
Wang, Hui
;
Gao, Qian
;
Chen, Yin
;
Li, Senlin
;
Yang, Yu
;
Werner, David
;
Tao, Shu
;
Wang, Xilong
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
PAHs
Humic acid
Humin
Soil
Retention
DISSOLVED ORGANIC-MATTER
HUMAN HEALTH-RISK
BLACK CARBON
PHENANTHRENE SORPTION
MOLECULAR-WEIGHT
RIVER DELTA
PAHS
SEDIMENTS
CHINA
PYRENE
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
Palladium-Catalyzed Direct Annulation of Benzoic Acids with Phenols to Synthesize Dibenzopyranones
期刊论文
ORGANIC LETTERS, 2017
Wang, Yang
;
Gu, Jie-Yu
;
Shi, Zhang-Jie
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
UNACTIVATED C(SP(3))-H BONDS
BIARYL COUPLING REACTION
CARBON-HYDROGEN BONDS
C-F BOND
INTERNAL ALKYNES
OXIDATIVE ANNULATION
ORGANIC-SYNTHESIS
DERIVATIVES
ACTIVATION
COMPLEXES
Synthesis of Benzyltributylstannanes by the Reaction of N-Tosylhydrazones with Bu3SnH
期刊论文
JOURNAL OF ORGANIC CHEMISTRY, 2017
Qiu, Di
;
Wang, Shuai
;
Meng, He
;
Tang, Shengbo
;
Zhang, Yan
;
Wang, Jianbo
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
CROSS-COUPLING REACTIONS
SN-H BOND
CARBONYL-COMPOUNDS
ORGANIC HALIDES
BENZYL HALIDES
ACID-CHLORIDES
ARYL BROMIDES
METAL CARBENE
BORONIC ACIDS
PALLADIUM
Synthesis and pH-dependent hydrolysis profiles of mono- and dialkyl substituted maleamic acids
期刊论文
ORGANIC & BIOMOLECULAR CHEMISTRY, 2017
Su, Shan
;
Du, Fu-Sheng
;
Li, Zi-Chen
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
DRUG-DELIVERY
GENE DELIVERY
SUPRAMOLECULAR ASSEMBLIES
RESPONSIVE NANOPARTICLES
BIOMEDICAL APPLICATIONS
POLYMERIC MICELLES
AMIDE HYDROLYSIS
PHTHALAMIC ACID
RELEASE
TUMORS
从氮气直接合成含氮有机化合物
期刊论文
化学学报, 2017
李嘉鹏
;
殷剑昊
;
俞超
;
张文雄
;
席振峰
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
氮气活化
氮气转化
过渡金属
氮气配合物
固氮
dinitrogen activation
dinitrogen transformation
transition metals
dinitrogen complex
nitrogen fixation
TRANSITION-METAL-COMPLEXES
TUNGSTEN DINITROGEN COMPLEXES
AMBIENT REACTION CONDITIONS
MOLECULAR NITROGEN
CATALYZED TRANSFORMATION
AMMONIA-SYNTHESIS
FEMO-COFACTOR
ACTIVATION
REDUCTION
FIXATION
Catalytic and Enantioselective Diels-Alder Reactions of (E)-4-Oxopent-2-enoates
期刊论文
ORGANIC LETTERS, 2017
Zhang, Su-Lei
;
Lu, Yong
;
Li, Yuan-He
;
Wang, Kuang-Yu
;
Chen, Jia-Hua
;
Yang, Zhen
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
ASYMMETRIC TOTAL-SYNTHESIS
ALPHA,BETA-UNSATURATED KETONES
CYCLOADDITION REACTIONS
CATIONIC OXAZABOROLIDINES
CHIRAL OXAZABOROLIDINE
DIENOPHILE
CYCLOPENTADIENE
RECOGNITION
PATHWAYS
ACIDS
Reaction of Aldehydes/Ketones with Electron-Deficient 1,3,5-Triazines Leading to Functionalized Pyrimidines as Diels-Alder/Retro-Diels-Alder Reaction Products: Reaction Development and Mechanistic Studies
期刊论文
JOURNAL OF ORGANIC CHEMISTRY, 2017
Yang, Kai
;
Dang, Qun
;
Cai, Pei-Jun
;
Gao, Yang
;
Yu, Zhi-Xiang
;
Bai, Xu
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
MOLECULAR-ORBITAL METHODS
GAUSSIAN-BASIS SETS
(-)-PYRIMIDOBLAMIC ACID
1,2,4-TRIAZINES
CYCLOADDITIONS
PYRIDAZINES
ANNULATION
ENAMINES
DENSITY
KETONES
Spectroscopic study of interactions of lead (II) ions with dissolved organic matter: Evidence of preferential engagement of carboxylic groups
期刊论文
GEOCHIMICA ET COSMOCHIMICA ACTA, 2017
Lu, Yujuan
;
Yan, Mingquan
;
Korshin, Gregory V.
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Carboxylic moiety
Chromophores
Complexation
Differential absorbance spectroscopy
Dissolved organic matter
Lead
RAY-ABSORPTION SPECTROSCOPY
DONNAN MODEL PARAMETERS
IN-SITU EXAMINATION
HUMIC SUBSTANCES
METAL-IONS
FULVIC-ACIDS
ABSORBENCY SPECTROSCOPY
STABILITY-CONSTANTS
BINDING
COMPLEXATION
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