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科研机构
北京大学 [205]
内容类型
期刊论文 [181]
其他 [19]
会议论文 [5]
发表日期
2017 [14]
2016 [21]
2015 [16]
2014 [20]
2013 [21]
2012 [7]
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专题:北京大学
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中国出口产业的空间格局演变
期刊论文
经济地理, 2017
李伟
;
贺灿飞
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
贸易
出口
原材料类产品
劳动密集型产业
技术密集型产业
空间格局演变
中国
trade
export
raw materials products
labor-intensive industries
technology intensive industries
spatial restructure
Characterizing copper flows in international trade of China, 1975-2015
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2017
Zhang, Ling
;
Chen, Tianming
;
Yang, Jiameng
;
Cai, Zhijian
;
Sheng, Hu
;
Yuan, Zengwei
;
Wu, Huijun
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
Industrial ecology
Material flow analysis
International trade
Resource management
Metal cycle
IN-USE STOCK
PATTERNS
FUTURE
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
造山带碳酸岩起源与深部碳循环
期刊论文
矿物岩石地球化学通报, 2017
许成
;
曾亮
;
宋文磊
;
冯梦
;
邓淼
;
韦春婉
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
碳酸岩
沉积物俯冲
碳循环
造山带
carbonatites
subduction
carbon recycle
orogenic belt
Carbonatites of Tarim (NW China): First evidence of crustal contribution in carbonatites from a large igneous province
期刊论文
LITHOS, 2017
Song, WenLei
;
Xu, Cheng
;
Chakhmouradian, Anton R.
;
Kynicky, Jindrich
;
Huang, KangJun
;
Zhang, ZhenLiang
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Carbonatite
Large igneous province
Plume
Subducted sediments
Carbonate recycling
MAGNESIUM ISOTOPIC COMPOSITION
RARE-EARTH-ELEMENTS
MANTLE PLUME
CONTINENTAL-CRUST
OLDOINYO LENGAI
QINLING OROGEN
ISLAND BASALTS
FLOOD BASALTS
EVOLUTION
MG
Bioinspired Asymmetric Synthesis of Hispidanin A
期刊论文
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017
Li, Fuzhuo
;
Tu, Qian
;
Chen, Sijia
;
Zhu, Lei
;
Lan, Yu
;
Gong, Jianxian
;
Yang, Zhen
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
asymmetric synthesis
biosynthesis
Diels-Alder reaction
hispidanin A
natural products
DIELS-ALDER REACTIONS
ENANTIOSPECIFIC SYNTHESIS
BIOMIMETIC SYNTHESES
CHEMICAL-REACTIVITY
ISODON-HISPIDA
DITERPENOIDS
CHEMISTRY
RHIZOMES
DENSITY
THERMOCHEMISTRY
Highly dispersed Co-based Fischer-Tropsch synthesis catalysts from metal-organic frameworks
期刊论文
JOURNAL OF MATERIALS CHEMISTRY A, 2017
Qiu, Bin
;
Yang, Ce
;
Guo, Wenhan
;
Xu, Yao
;
Liang, Zibin
;
Ma, Ding
;
Zou, Ruqiang
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
COBALT NANOPARTICLES
MESOPOROUS CARBON
SYNTHESIS GAS
PERFORMANCE
NANOTUBES
NITROGEN
Preparing, Characterizing, and Investigating Luminescent Properties of a Series of Long-Lasting Phosphors in a SrO-Al2O3 System: An Integrated and Inquiry-Based Experiment in Solid State Chemistry for the Undergraduate Laboratory
期刊论文
JOURNAL OF CHEMICAL EDUCATION, 2017
Ma, Yan-Zi
;
Jia, Li
;
Ma, Kai-Guo
;
Wang, Hai-Hong
;
Jing, Xi-Ping
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Second-Year Undergraduate
Inorganic Chemistry
Laboratory Instruction
Hands-On Learning/Manipulatives
Inquiry-Based/Discovery Learning
Crystal Field/Ligand Field Theory
Fluorescence Spectroscopy
Materials Science
Phases/Phase Transitions/Diagrams
Solid State Chemistry
DY3+ PHOSPHOR
MICROWAVE SYNTHESIS
EU2+
SRAL2O4EU2+
MECHANISM
Co3O4-Al2O3 mesoporous hollow spheres as efficient catalyst for Fischer-Tropsch synthesis
期刊论文
APPLIED CATALYSIS B-ENVIRONMENTAL, 2017
Fu, Xin-Pu
;
Shen, Qi-Kai
;
Shi, Dong
;
Wu, Ke
;
Jin, Zhao
;
Wang, Xu
;
Si, Rui
;
Song, Qi-Sheng
;
Jia, Chun-Jiang
;
Yan, Chun-Hua
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
Mesoporous hollow spheres
Mixed metal oxide
Interfacial structure
Aerosol-assisted self-assembly
Fischer-Tropsch synthesis
LITHIUM-ION BATTERIES
RUTHENIUM NANOPARTICLES
CARBON NANOSPHERES
COBALT CATALYSTS
ALUMINA
MICROSPHERES
PHASE
SELECTIVITY
NANOTUBES
PARTICLES
On-Surface Synthesis and Characterization of Honeycombene Oligophenylene Macrocycles
期刊论文
ACS NANO, 2017
Chen, Min
;
Shang, Jian
;
Wang, Yongfeng
;
Wu, Kai
;
Kuttner, Julian
;
Hilt, Gerhard
;
Hieringer, Wolfgang
;
Gottfried, J. Michael
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
on-surface synthesis
Ullmann reaction
macrocycle
quantum corral
conjugation
electron confinement scanning tunneling microscopy
SCANNING TUNNELING MICROSCOPE
DENSITY-FUNCTIONAL THEORY
CARBON NANOTUBES
METAL-SURFACES
NOBEL LECTURE
TERMINAL ALKYNES
HYBRID CHAINS
GRAPHENE
CHEMISTRY
FULLERENES
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