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科研机构
北京大学 [41]
内容类型
期刊论文 [36]
其他 [5]
发表日期
2015 [3]
2014 [2]
2013 [3]
2012 [1]
2011 [2]
2010 [7]
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专题:北京大学
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Compromised small-world efficiency of structural brain networks in schizophrenic patients and their unaffected parents
期刊论文
神经科学通报, 2015
Yan Hao
;
Tian Lin
;
Wang Qifeng
;
Zhao Qiang
;
Yue Weihua
;
Yan Jun
;
Liu Bing
;
Zhang Dai
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2015/11/11
Association between duration of playing video games and bone mineral density in chinese adolescents
其他
2015-01-01
Shao Haiyu
;
Xu Shaonan
;
Zhang Jun
;
Zheng Jiayin
;
Chen Jinping
;
Huang Yazeng
;
Ru Bin
;
Jin Yongming
;
Zhang Qi
;
Ying Qifeng
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2015/11/13
Bone mineral density,Chinese adolescents,playing video games
Associations of Fat Mass and Fat Distribution With Bone Mineral Density in Chinese Obese Population
其他
2015-01-01
Zhang, Jun
;
Jin, Yongming
;
Xu, Shaonan
;
Zheng, Jiayin
;
Zhang, Qi
;
Chen, Jinping
;
Huang, Yazeng
;
Shao, Haiyu
;
Yang, Di
;
Ying, Qifeng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/13
Bone mineral density
fat distribution
fat mass
obesity
NORMAL POSTMENOPAUSAL WOMEN
BODY-COMPOSITION
RELATIVE CONTRIBUTION
PERIMENOPAUSAL WOMEN
OSTEOPOROTIC FRACTURES
ADIPOSE-TISSUE
VISCERAL FAT
SOFT-TISSUE
LEAN MASS
MEN
Synthesis of semibullvalene derivatives via Co-2(CO)(8)-mediated cyclodimerization of 1,4-dilithio-1,3-butadienes
期刊论文
ORGANIC CHEMISTRY FRONTIERS, 2014
Zhang, Shaoguang
;
Zhan, Ming
;
Wang, Qifeng
;
Wang, Chao
;
Zhang, Wen-Xiong
;
Xi, Zhenfeng
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
INDEPENDENT CHEMICAL-SHIFTS
COPE REARRANGEMENT
CARBENE COMPLEXES
STRUCTURAL-CHARACTERIZATION
EFFICIENT SYNTHESIS
COBALT
METAL
2,6-DIAZASEMIBULLVALENES
HOMOAROMATICITY
BARBARALANES
REGIONALIZED ACTUATOR DISK MODEL DESIGNED BY OPTIMIZATION METHOD FOR PROPELLER SLIPSTREAM COMPUTATION
期刊论文
engineering applications of computational fluid mechanics, 2014
Wang, Qifeng
;
Jiang, Zhe
;
Zhang, Qunfeng
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2015/11/16
propeller slipstream
regionalized actuator disk model
optimization
APPROXIMATE OPTIMIZATION
Controllable tune of the cutoff frequencies in a photonic crystal waveguide with hexagonal lattice
期刊论文
science china physics mechanics astronomy, 2013
Zhu KongTao
;
Deng TianSong
;
Sun Yan
;
Zhang QiFeng
;
Wu JinLei
收藏
  |  
浏览/下载:1/0
  |  
提交时间:2015/11/10
photonic crystal
waveguide
cutoff frequency
coupled mode
controllable tune
SLOW LIGHT
DEFECT
Low-voltage, high speed, compact silicon modulator for BPSK modulation
期刊论文
光学快报, 2013
Li, Tiantian
;
Zhang, Junlong
;
Yi, Huaxiang
;
Tan, Wei
;
Long, Qifeng
;
Zhou, Zhiping
;
Wang, Xingjun
;
Wu, Hequan
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2015/11/13
MACH-ZEHNDER MODULATOR
OPTICAL MODULATOR
TRANSMISSION
PERFORMANCE
FORMATS
10-Gb/s 53.1-km BPSK transmission of silicon Mach-Zehnder modulator
其他
2013-01-01
Li, Tiantian
;
Zhang, Junlong
;
Yi, Huaxiang
;
Tan, Wei
;
Long, Qifeng
;
Zhou, Zhiping
;
Wang, Xingjun
;
Wu, Hequan
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/13
Amphiphilic mesogen-jacketed liquid crystalline polymers: Design, synthesis, and self-assembly behaviors
期刊论文
journal of polymer science part a polymer chemistry, 2012
Wu, Hongliang
;
Zhang, Lanying
;
Xu, Yingrong
;
Ma, Ziyue
;
Shen, Zhihao
;
Fan, Xinghe
;
Zhou, Qifeng
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2015/11/10
functionalization of polymers
liquid-crystalline polymers (LCP)
supramolecular structures
SCANNING FORCE MICROSCOPY
TAPER-SHAPED MONOESTERS
DENDRITIC SIDE-GROUPS
PHASE STRUCTURES
MACROMOLECULAR COLUMNS
BLOCK-COPOLYMERS
BUILDING-BLOCKS
ACID
ARCHITECTURES
MESOPHASE
Dendron-Jacketed Electrophosphorescent Copolymers: Improved Efficiency and Tunable Emission Color by Partial Energy Transfer
期刊论文
macromolecules, 2011
Jin, Hao
;
Zhang, Wei
;
Wang, Dan
;
Chu, Zengze
;
Shen, Zhihao
;
Zou, Dechun
;
Fan, Xinghe
;
Zhou, Qifeng
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/10
LIGHT-EMITTING-DIODES
PHOSPHORESCENT POLY(DENDRIMER)
ELECTROLUMINESCENT DEVICES
IRIDIUM COMPLEXES
SIDE-GROUPS
POLYMERS
DOPANT
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