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科研机构
北京大学 [311]
内容类型
期刊论文 [265]
其他 [44]
会议论文 [2]
发表日期
2017 [26]
2016 [42]
2015 [41]
2014 [28]
2013 [22]
2012 [13]
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专题:北京大学
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植物生长型显著影响三峡大老岭地区木本植物种子质量的海拔格局
期刊论文
植物生态学报, 2017
李道新
;
李果
;
沈泽昊
;
徐慎东
;
韩庆瑜
;
王功芳
;
田风雷
收藏
  |  
浏览/下载:110/0
  |  
提交时间:2017/12/03
木本植物
种子质量
海拔
生长型
三峡大老岭
woody plant
seed mass
elevation
growth-form
Dalaoling in the Three Gorges
Global patterns of interaction specialization in bird-flower networks
期刊论文
JOURNAL OF BIOGEOGRAPHY, 2017
Zanata, Thais B.
;
Dalsgaard, Bo
;
Passos, Fernando C.
;
Cotton, Peter A.
;
Roper, James J.
;
Maruyama, Pietro K.
;
Fischer, Erich
;
Schleuning, Matthias
;
Gonzalez, Ana M. Martin
;
Vizentin-Bugoni, Jeferson
;
Franklin, Donald C.
;
Abrahamczyk, Stefan
;
Alarcon, Ruben
;
Araujo, Andrea C.
;
Araujo, Francielle P.
;
de Azevedo-Junior, Severino M.
;
Baquero, Andrea C.
;
Boehning-Gaese, Katrin
;
Carstensen, Daniel W.
;
Chupil, Henrique
;
Coelho, Aline G.
;
Faria, Rogerio R.
;
Horak, David
;
Ingversen, Tanja T.
;
Janecek, Stepan
;
Kohler, Glauco
;
Lara, Carlos
;
Las
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2017/12/03
honeyeaters
hummingbirds
modularity
niche partitioning
ornithophily
plant-animal interactions
specialization
sunbirds
SEED-DISPERSAL NETWORKS
NECTAR-FEEDING BIRDS
POLLINATION SYSTEMS
ECOLOGICAL SPECIALIZATION
MUTUALISTIC NETWORKS
SPECIES RICHNESS
RAIN-FOREST
PLANT
HUMMINGBIRDS
EVOLUTIONARY
Long-term forest resilience to climate change indicated by mortality, regeneration, and growth in semiarid southern Siberia
期刊论文
GLOBAL CHANGE BIOLOGY, 2017
Xu, Chongyang
;
Liu, Hongyan
;
Anenkhonov, Oleg A.
;
Korolyuk, Andrey Yu
;
Sandanov, Denis V.
;
Balsanova, Larisa D.
;
Naidanov, Bulat B.
;
Wu, Xiuchen
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
arid timberline
arid tree line
climate change
forest resilience
forest-steppe
patch size
southern Siberia
ECOLOGICAL RESILIENCE
TEMPERATE FOREST
WESTERN CANADA
SEED BANK
DROUGHT
DYNAMICS
VARIABILITY
DISTURBANCE
MOUNTAINS
TREELINE
中国高山植物区系地理格局与环境和空间因素的关系
期刊论文
生物多样性, 2017
沈泽昊
;
杨明正
;
冯建孟
;
李新辉
;
彭培好
;
郑智
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
高山带
种子植物
区系成分
地理分异
组成相似性
Mantel检验
空间距离
地貌
气候
alpine zone
seed plant
floristic elements
geographic differentiation
composition similarity
Mantel test
spatial distance
physiognomy
climate
A novel colorimetric biosensor based on non-aggregated Au@Ag core-shell nanoparticles for methamphetamine and cocaine detection
期刊论文
TALANTA, 2017
Mao, Kang
;
Yang, Zhugen
;
Li, Junrong
;
Zhou, Xiaodong
;
Li, Xiqing
;
Hu, Jiming
收藏
  |  
浏览/下载:106/0
  |  
提交时间:2017/12/03
Au@Ag
Aptamer
Methamphetamine
Colorimetry
Illicit drugs
TANDEM MASS-SPECTROMETRY
UNMODIFIED GOLD NANOPARTICLES
ILLICIT DRUGS
APTAMER
DNA
PROBES
WATER
OLIGONUCLEOTIDES
PHARMACEUTICALS
APTASENSOR
Further study of Late Devonian seed plant Cosmosperma polyloba: its reconstruction and evolutionary significance
期刊论文
BMC EVOLUTIONARY BIOLOGY, 2017
Liu, Le
;
Wang, Deming
;
Meng, Meicen
;
Xue, Jinzhuang
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
Cosmosperma polyloba
Frond
Ovule
Pollen organ
Seed plant
Late Devonian
Wutong Formation
South China
SP-NOV.
ZHEJIANG PROVINCE
SOUTH CHINA
GEN.
PTERIDOSPERM
CHANGXINGIA
AFFINITIES
IRELAND
ORGAN
FERNS
Variations of the relativistic electron flux after a magnetospheric compression event
期刊论文
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2017
Chen Zhe
;
Chen HongFei
;
Li YiFan
;
Xiang HongWen
;
Yu XiangQian
;
Shi WeiHong
;
Hao ZhiHua
;
Zou Hong
;
Zou JiQing
;
Zhong WeiYing
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
outer radiation belt
high-energy electrons
medium-energy electrons
space environment
OUTER RADIATION BELT
INTERPLANETARY MAGNETIC-FIELD
GEOMAGNETIC STORMS
LOCAL ACCELERATION
PARTICLE DETECTOR
CBERS-1 SATELLITE
LOSSES
EVOLUTION
RESPONSES
PRESSURE
Subduction between the Jiamusi and Songliao blocks: Geological, geochronological and geochemical constraints from the Heilongjiang Complex
期刊论文
LITHOS, 2017
Zhu, Chloe Yanlin
;
Zhao, Guochun
;
Ji, Jianqing
;
Sun, Min
;
Han, Yigui
;
Liu, Qian
;
Eizenhofer, Paul R.
;
Zhang, Xiaoran
;
Hou, Wenzhu
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Amphibolites
Meta-sedimentary rocks
The Heilongjiang Complex
Subduction
Collision
LA-ICP-MS
CENTRAL TIANSHAN BLOCK
ASIAN OROGENIC BELT
I-TYPE GRANITES
NE CHINA
U-PB
TECTONIC IMPLICATIONS
NORTHEASTERN CHINA
ZHANGGUANGCAI RANGE
DETRITAL ZIRCONS
Segmentation and classification of two-channel C. elegans nucleus-labeled fluorescence images
其他
2017-01-01
Zhao, Mengdi
;
An, Jie
;
Li, Haiwen
;
Zhang, Jiazhi
;
Li, Shang-Tong
;
Li, Xue-Mei
;
Dong, Meng-Qiu
;
Mao, Heng
;
Tao, Louis
收藏
  |  
浏览/下载:116/0
  |  
提交时间:2017/12/03
C. elegans
Nucleus
Aging
Two-channel fluorescence image
Morphology
Segmentation
Classification
AGE-RELATED-CHANGES
AFFECT LIFE-SPAN
CAENORHABDITIS-ELEGANS
CELL SEGMENTATION
ARCHITECTURE
MORPHOLOGY
INTEGRITY
In vitro Dosimetric Study of Biliary Stent Loaded with Radioactive I-125 Seeds
其他
2017-01-01
Yao, Li-Hong
;
Wang, Jun-Jie
;
Shang, Charles
;
Jiang, Ping
;
Lin, Lei
;
Sun, Hai-Tao
;
Liu, Lu
;
Liu, Hao
;
He, Di
;
Yang, Rui-Jie
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Brachytherapy
Computer Simulation
Phantom
Radiometry
Thermoluminescent Dosimetry
RADIOTHERAPY DOSE PERTURBATION
MALIGNANT OBSTRUCTIVE-JAUNDICE
BILE-DUCT CARCINOMA
INTRALUMINAL BRACHYTHERAPY
RADIATION-THERAPY
ESOPHAGEAL STENTS
TRACT CANCER
MODEL
TRIAL
RECOMMENDATIONS
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