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科研机构
北京大学 [15]
内容类型
期刊论文 [14]
其他 [1]
发表日期
2017 [3]
2016 [1]
2015 [1]
2014 [1]
2013 [2]
2012 [2]
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专题:北京大学
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Elderly Migration in China: Types, Patterns, and Determinants
期刊论文
JOURNAL OF APPLIED GERONTOLOGY, 2017
Dou, Xiaolu
;
Liu, Yujun
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
China
elderly migrants
long-distance migrate
short-distance migrate
migration pattern
RURAL-URBAN MIGRATION
INTERNAL MIGRATION
RESIDENTIAL-MOBILITY
HEALTH
IMPACTS
PLACE
How social structure changes in Chinese global cities: Synthesizing globalization, migration and institutional factors in Beijing
期刊论文
CITIES, 2017
Shi, Qiujie
;
Liu, Tao
;
Musterd, Sako
;
Cao, Guangzhong
收藏
  |  
浏览/下载:107/0
  |  
提交时间:2017/12/03
Global city
Social structure
Institutional factors
Migrants
Beijing
HUKOU SYSTEM
CITY HYPOTHESIS
WELFARE-STATE
MIDDLE-CLASS
NEW-YORK
POLARIZATION
TRANSFORMATION
MIGRANTS
IMMIGRATION
GENTRIFICATION
A Combined DFT/IM-MS Study on the Reaction Mechanism of Cationic Ru(II)-Catalyzed Hydroboration of Alkynes
期刊论文
ACS CATALYSIS, 2017
Song, Li-Juan
;
Wang, Ting
;
Zhang, Xinhao
;
Chung, Lung Wa
;
Wu, Yun-Dong
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
hydroboration
hydrofunctionalization
trans-selectivity
ruthenium
density functional theory
mass spectrometry
MOBILITY-MASS-SPECTROMETRY
CATALYZED TRANS-HYDROBORATION
C-H ACTIVATION
GAS-PHASE
INTERNAL ALKYNES
TERMINAL ALKYNES
RUTHENIUM COMPLEXES
OXIDATIVE ADDITION
5+2 CYCLOADDITIONS
METAL-COMPLEXES
基于加权Voronoi多边形的山区 农村居民点优化布局 --以重庆市崇龛镇与石龙镇为例
期刊论文
中国农业资源与区划, 2016
贺贤华
;
杨昕
;
毛熙彦
;
贺灿飞
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2017/12/03
西南山区
新型城镇化
农村居民点
布局优化
加权Voronoi图
Southwest China
new-type urbanization
rural settlement optimization
weighted voronoi
Spatial patterns, driving forces, and urbanization effects of China's internal migration: County-level analysis based on the 2000 and 2010 censuses
期刊论文
journal of geographical sciences, 2015
Liu Tao
;
Qi Yuanjing
;
Cao Guangzhong
;
Liu Hui
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2015/11/11
floating population
migration
urbanization
urban system
megacity region
census
China
RURAL-URBAN MIGRATION
INTERPROVINCIAL MIGRATION
REGIONAL-DEVELOPMENT
DECISIONS
GEOGRAPHY
Ligand-Controlled Reactivity, Selectivity, and Mechanism of Cationic Ruthenium-Catalyzed Hydrosilylations of Alkynes, Ketones, and Nitriles: A Theoretical Study
期刊论文
journal of organic chemistry, 2014
Yang, Yun-Fang
;
Chung, Lung Wa
;
Zhang, Xinhao
;
Houk, K. N.
;
Wu, Yun-Dong
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/13
TRANSITION-ELEMENTS
INTERNAL ALKYNES
METAL-COMPLEXES
BOND
HYDROSILATION
ACTIVATION
ORIGINS
OLEFINS
ENERGY
Ligand-Controlled Remarkable Regio- and Stereodivergence in Intermolecular Hydrosilylation of Internal Alkynes: Experimental and Theoretical Studies
期刊论文
journal of the american chemical society, 2013
Ding, Shengtao
;
Song, Li-Juan
;
Chung, Lung Wa
;
Zhang, Xinhao
;
Sun, Jianwei
;
Wu, Yun-Dong
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/11
CROSS-COUPLING REACTIONS
TRISUBSTITUTED HOMOALLYLIC ALCOHOLS
RHODIUM-CATALYZED HYDROSILYLATION
CHALK-HARROD MECHANISM
TRANS-HYDROSILYLATION
TERMINAL ALKYNES
ANTI-HYDROSILYLATION
ORGANIC-SYNTHESIS
REGIOSELECTIVE FUNCTIONALIZATION
STEREOSELECTIVE HYDROSILYLATION
Securing data services: A security architecture design for private storage cloud based on HDFS
期刊论文
international journal of grid and utility computing, 2013
Shen, Qingni
;
Yang, Yahui
;
Wu, Zhonghai
;
Wang, Dandan
;
Long, Min
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/17
Simultaneous determination of jasmonic acid epimers as phytohormones by chiral liquid chromatography-quadrupole time-of-flight mass spectrometry and their epimerization study
期刊论文
journal of chromatography a, 2012
Han, Yehua
;
Zhou, Zhigui
;
Wu, Hongliang
;
Nie, Honggang
;
Lei, Rong
;
Bai, Yu
;
Liu, Huwei
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/10
Jasmonic acid
Chiral separation
Plant hormone
Liquid chromatography
Quadrupole time-of-flight tandem mass spectrometry
GENE-EXPRESSION
METHYL JASMONATE
PLANT-RESPONSES
HUMAN PLASMA
STRESS
BIOSYNTHESIS
ARABIDOPSIS
STEREOISOMERS
ACCUMULATION
OXYLIPINS
SECURE COLLABORATIVE INTEGRITY VERIFICATION FOR HYBRID CLOUD ENVIRONMENTS
期刊论文
2012
Zhu, Yan
;
Wang, Shanbiao
;
Hu, Hongxin
;
Ahn, Gail-Joon
;
Ma, Di
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/13
Integrity verification
multi-prover
collaborative
hybrid clouds
RETRIEVABILITY
PROOFS
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