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科研机构
北京大学 [147]
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期刊论文 [133]
其他 [10]
会议论文 [4]
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2017 [6]
2016 [11]
2015 [10]
2014 [17]
2013 [15]
2012 [12]
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专题:北京大学
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Retrieving the gap fraction, element clumping index, and leaf area index of individual trees using single-scan data from a terrestrial laser scanner
期刊论文
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, 2017
Li, Yumei
;
Guo, Qinghua
;
Su, Yanjun
;
Tao, Shengli
;
Zhao, Kaiguang
;
Xu, Guangcai
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Destructive sample
Extinction coefficient
Single scanning
Terrestrial laser scanning
Riegl VZ-400
GROUND-BASED LIDAR
HEMISPHERICAL PHOTOGRAPHY
ANGLE DISTRIBUTION
FOREST STRUCTURE
PLANT CANOPIES
BOREAL FORESTS
STANDS
ARCHITECTURE
DERIVATION
DENSITY
A Facile All-Solution-Processed Surface with High Water Contact Angle and High Water Adhesive Force
期刊论文
ACS APPLIED MATERIALS & INTERFACES, 2017
Chen, Mei
;
Hu, Wei
;
Liang, Xiao
;
Zou, Cheng
;
Li, Fasheng
;
Zhang, Lanying
;
Chen, Feiwu
;
Yang, Huai
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
polymerization-induced phase separation
epoxy microspheres
hierarchical structures
high apparent contact angle
high water adhesive force
DISPERSED LIQUID-CRYSTALS
INDUCED PHASE-SEPARATION
SOLUTION-IMMERSION PROCESS
SUPERHYDROPHOBIC SURFACES
ELECTROOPTICAL PROPERTIES
OXIDE SURFACES
SINGLE-PHASE
POLYMER
FILMS
FABRICATION
侧基含纳米构筑单元的甲壳型液晶高分子的多层次自组装
期刊论文
高分子学报, 2017
候平平
;
沈志豪
;
范星河
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
甲壳型液晶高分子
纳米构筑单元
二联苯
苯并菲
多面体低聚倍半硅氧烷
Mesogen-jacketed liquid crystalline polymer
Nanobuilding block
Biphenyl
Triphenylene
Polyhedral oligomeric silsesquioxane (POSS)
PHASE STRUCTURES
MAIN-CHAIN
POLYNORBORNENE BACKBONE
LENGTH SCALES
SUB-10 NM
COPOLYMERS
BEHAVIOR
SCIENCE
SERIES
芳烃-氟代芳烃和氢键作用调控的树枝状分子自组装及其液晶性质
期刊论文
高分子学报, 2017
王章远
;
吴惠娴
;
倪博
;
马玉国
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
树枝状分子
液晶
芳烃-氟代芳烃相互作用
氢键
Dendrimer
Arene-perfluoroarene interaction
Hydrogen bonding
Liquid crystal
SOLID-STATE
CYCLOADDITION
BEHAVIOR
COMPLEX
DESIGN
ALKYNE
AZIDE
Atomically FeN2 moieties dispersed on mesoporous carbon: A new atomic catalyst for efficient oxygen reduction catalysis
期刊论文
NANO ENERGY, 2017
Shen, Hangjia
;
Gracia-Espino, Eduardo
;
Ma, Jingyuan
;
Tang, Haodong
;
Mamat, Xamxikamar
;
Wagberg, Thomas
;
Hu, Guangzhi
;
Guo, Shaojun
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
FeN2
Atomic dispersion
Oxygen reduction reaction
Kinetic model
Nitrogen-doped carbon
NITROGEN-DOPED CARBON
FUEL-CELLS
N-X
ELECTROCATALYSTS
SITES
IRON
ELECTROREDUCTION
IDENTIFICATION
PERFORMANCE
POLYMER
Adaptable metasurface for dynamic anomalous reflection
期刊论文
APPLIED PHYSICS LETTERS, 2017
Yan, L. B.
;
Zhu, W. M.
;
Wu, P. C.
;
Cai, H.
;
Gu, D.
;
Chin, L. K.
;
Shen, Z. X.
;
Chong, P. H. J.
;
Yang, Z. C.
;
Ser, W.
;
Tsai, D. P.
;
Liu, A. Q.
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
LINEAR-POLARIZATION CONVERSION
BROAD-BAND
PLASMONIC METASURFACE
PHASE DISCONTINUITIES
LIGHT-PROPAGATION
VISIBLE-LIGHT
WAVE PLATE
EFFICIENCY
METAMATERIAL
GENERATION
Hydrothermal synthesis of zeolite A from K-feldspar and its crystallization mechanism
期刊论文
ADVANCED POWDER TECHNOLOGY, 2016
Su, Shuangqing
;
Ma, Hongwen
;
Chuan, Xiuyun
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
K-feldspar
Zeolite A
Hydrothermal
Crystallization mechanism
COAL FLY-ASH
MAS-NMR
NAA ZEOLITE
KAOLINITE
AL-27
TRANSFORMATION
METAKAOLINITE
OPTIMIZATION
POTASSIUM
SILICA
基于RSP的植被多角度偏振特性研究
期刊论文
光谱学与光谱分析, 2016
焦健楠
;
赵海盟
;
杨彬
;
晏磊
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
偏振探测
植被遥感
单次散射
多次散射
RSP
Polarization detection
Degree of polarization
Vegetation
Single scattering
Multiple scattering
RETRIEVAL
SPACE
Ductile deformation and its geological implications for retrograded eclogites from the Hongqiyingzi Complex in Chicheng, northern Hebei, China
期刊论文
SCIENCE CHINA-EARTH SCIENCES, 2016
Liu ShiRan
;
Zhang JinJiang
;
Qi GuoWei
;
Wang Meng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/04
Fabric
Microstructure
Retrograded eclogites
Electron backscatter diffraction (EBSD)
Hongqiyingzi Complex
North China
ELECTRON BACKSCATTER DIFFRACTION
CRYSTAL PREFERRED ORIENTATIONS
CONTINENTAL DEEP SUBDUCTION
UHP METAMORPHIC TERRANE
SEISMIC PROPERTIES
DYNAMIC RECRYSTALLIZATION
EXHUMATION DYNAMICS
MAIN HOLE
SW JAPAN
CRATON
Synthesis and Properties of Poly(p-phenylene terephthalamide) Bearing Both Polar and Unsaturated Substituents Introduced via Claisen Rearrangement Reaction
期刊论文
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2016
Wang, Wenbin
;
Qi, Xiang
;
Guan, Yan
;
Zhang, Fei
;
Zhang, Jie
;
Yan, Chun
;
Zhu, Yingdan
;
Wan, Xinhua
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/04
adhesion
aramid fiber
claisen rearrangement reaction
composites
epoxy
polyamides
PPTA
sizing agent
SUPERCRITICAL CARBON-DIOXIDE
TWARON(R) ARAMID-FIBERS
POLYSTYRENE SIDE-CHAINS
SURFACE MODIFICATION
CHEMICAL TREATMENT
INTERFACIAL ADHESION
AROMATIC POLYAMIDES
INTERYARN FRICTION
KEVLAR FIBERS
COMPOSITES
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