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科研机构
北京大学 [648]
内容类型
期刊论文 [546]
其他 [71]
会议论文 [31]
发表日期
2017 [51]
2016 [63]
2015 [48]
2014 [59]
2013 [49]
2012 [35]
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专题:北京大学
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以出行路径耗时为测度的城镇体系空间结构研究
期刊论文
经济地理, 2017
杨震
;
吕斌
;
王晶
收藏
  |  
浏览/下载:110/0
  |  
提交时间:2017/12/03
城镇体系
空间结构
出行路径耗时
紧凑度
urban system
space structure
travel time on paths
compactness ratio
Collecting Particulate Matter and Particle-Bound Polycyclic Aromatic Hydrocarbons Using a Cylindrical Thermal Precipitator
期刊论文
JOURNAL OF ENVIRONMENTAL ENGINEERING, 2017
Su, Shu
;
Wang, Bin
;
Lin, Nan
;
Zhuo, Shaojie
;
Liu, Junfeng
;
Wang, Xilong
;
Cheng, Hefa
;
Chen, Da-Ren
;
Zeng, Eddy Y.
;
Tao, Shu
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
Thermophoresis
Thermal precipitator
Particulate matter
Polycyclic aromatic hydrocarbon
Sampling
Collection efficiency
AIR-POLLUTION
THERMOPHORETIC PRECIPITATOR
NANOPARTICLE SAMPLER
SIZE FRACTIONS
IN-VITRO
CELLS
DEPOSITION
DESIGN
FINE
ULTRAFINE
Growth responses of trees and understory plants to nitrogen fertilization in a subtropical forest in China
期刊论文
BIOGEOSCIENCES, 2017
Tian, Di
;
Li, Peng
;
Fang, Wenjing
;
Xu, Jun
;
Luo, Yongkai
;
Yan, Zhengbing
;
Zhu, Biao
;
Wang, Jingjing
;
Xu, Xiaoniu
;
Fang, Jingyun
收藏
  |  
浏览/下载:107/0
  |  
提交时间:2017/12/03
LOWLAND TROPICAL FOREST
NET PRIMARY PRODUCTIVITY
CARBON STORAGE
NUTRIENT LIMITATION
SOIL ACIDIFICATION
DEPOSITION
ECOSYSTEMS
ADDITIONS
PHOSPHORUS
SATURATION
Air quality and its response to satellite-derived urban form in the Yangtze River Delta, China
期刊论文
ECOLOGICAL INDICATORS, 2017
She, Qiannan
;
Peng, Xia
;
Xu, Qian
;
Long, Lingbo
;
Wei, Ning
;
Liu, Min
;
Jia, Wenxiao
;
Zhou, Taoye
;
Han, Ji
;
Xiang, Weining
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Urban air pollution
Urban form
Landscape metrics
Buffer distances
Yangtze River Delta
FIELD POLLUTANT DISPERSION
STREET CANYONS
UNITED-STATES
US CITIES
PM2.5
CITY
SUSTAINABILITY
TRANSPORT
IMPACTS
DEMAND
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
GNSS-R土壤水分遥感的适宜性分析
期刊论文
遥感学报, 2017
彭学峰
;
万玮
;
李飞
;
陈秀万
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
GNSS-R
GNSS-R
soil moisture
specular reflection point
resolution
sensing depth
土壤水分
镜面反射点
分辨率
探测深度
Estimating Savanna Clumping Index Using Hemispherical Photographs Integrated with High Resolution Remote Sensing Images
期刊论文
REMOTE SENSING, 2017
Li, Jucai
;
Fan, Wenjie
;
Liu, Yuan
;
Zhu, Gaolong
;
Peng, Jingjing
;
Xu, Xiru
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
clumping index
leaf area index
moderate resolution pixel
hemispherical photograph
high resolution images
LEAF-AREA INDEX
MODIS BRDF PRODUCT
TREE CROWN DELINEATION
SITCHENSIS BONG CARR
SIZE ANALYSIS THEORY
CANOPY STRUCTURE
VEGETATION STRUCTURE
GRASS COEXISTENCE
COVER PHOTOGRAPHY
FOREST CANOPIES
Quetiapine extended release versus aripiprazole in children and adolescents with first-episode psychosis: the multicentre, double-blind, randomised tolerability and efficacy of antipsychotics (TEA) trial
其他
2017-01-01
Pagsberg, Anne Katrine
;
Jeppesen, Pia
;
Klauber, Dea Gowers
;
Jensen, Karsten Gjessing
;
Ruda, Ditte
;
Stentebjerg-Olesen, Marie
;
Jantzen, Peter
;
Rasmussen, Simone
;
Saldeen, Eva Ann-Sofie
;
Lauritsen, Maj-Britt Glenn
;
Bilenberg, Niels
;
Stenstrom, Anne Dorte
;
Nyvang, Louise
;
Madsen, Sarah
;
Werge, Thomas M.
;
Lange, Theis
;
Gluud, Christian
;
Skoog, Maria
;
Winkel, Per
;
Jepsen, Jens Richardt M.
;
Fagerlund, Birgitte
;
Correll, Christoph U.
;
Fink-Jensen, Anders
收藏
  |  
浏览/下载:138/0
  |  
提交时间:2017/12/03
SCHIZOPHRENIA-SPECTRUM DISORDERS
EARLY-ONSET SCHIZOPHRENIA
2ND-GENERATION ANTIPSYCHOTICS
NETWORK METAANALYSIS
RISPERIDONE
SAFETY
OLANZAPINE
TEOSS
Developing a Logarithmic Chinese Reading Acuity Chart
期刊论文
OPTOMETRY AND VISION SCIENCE, 2017
Han, Qi-Ming
;
Cong, Lin-Juan
;
Yu, Cong
;
Liu, Lei
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
C-READ
reading acuity chart
simplified Chinese
LOW-VISION
PERFORMANCE
SPEED
VALIDATION
PSYCHOPHYSICS
RELIABILITY
PREDICTORS
SENTENCES
VERSION
TEXTS
Elaboration on the Distribution of Hydrophobic Segments in the Chains of Amphiphilic Cationic Polymers for Small Interfering RNA Delivery
期刊论文
ACS APPLIED MATERIALS & INTERFACES, 2017
Wang, Changrong
;
Du, Lili
;
Zhou, Junhui
;
Meng, Lingwei
;
Cheng, Qiang
;
Wang, Chun
;
Wang, Xiaoxia
;
Zhao, Deyao
;
Huang, Yuanyu
;
Zheng, Shuquan
;
Cao, Huiqing
;
Zhang, Jianhua
;
Deng, Liandong
;
Liang, Zicai
;
Dong, Anjie
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
siRNA delivery
delivery efficiency
amphiphilic cationic polymers
distribution of the hydrophobic segments
gene silence
TARGETED SIRNA DELIVERY
IN-VIVO
TRIBLOCK COPOLYMERS
BLOOD-CIRCULATION
CANCER-THERAPY
CO-DELIVERY
NANOPARTICLES
MICELLES
MODEL
PEG
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