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科研机构
北京大学 [57]
内容类型
期刊论文 [40]
其他 [17]
发表日期
2017 [1]
2016 [7]
2015 [8]
2014 [3]
2013 [6]
2012 [9]
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专题:北京大学
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Classifying natural-language spatial relation terms with random forest algorithm
期刊论文
INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE, 2017
Du, Shihong
;
Wang, Xiaonan
;
Feng, Chen-Chieh
;
Zhang, Xiuyuan
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Natural-language spatial relations
topological terms
metric variables
random forest
social media data
geographical information retrieval
METRIC DETAILS
SOCIAL MEDIA
OBJECTS
INFORMATION
Deciphering the Principles of Bacterial Nitrogen Dietary Preferences: a Strategy for Nutrient Containment
期刊论文
MBIO, 2016
Wang, Jilong
;
Yan, Dalai
;
Dixon, Ray
;
Wang, Yi-Ping
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/04
SIGNAL-TRANSDUCTION PROTEINS
ESCHERICHIA-COLI
SALMONELLA-TYPHIMURIUM
INTERNAL GLUTAMINE
METABOLISM
GROWTH
ASSIMILATION
CANAVANINE
LIMITATION
PROTEOME
From nano-dendrite to nano-sphere of Co100-xNix alloy: Composition dependent morphology, structure and magnetic properties
期刊论文
JOURNAL OF ALLOYS AND COMPOUNDS, 2016
Rafique, M. Yasir
;
Pan, Liqing
;
Farid, Asim
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Cobalt nickel alloy
Alloys formation
NiCo
Alloy composition dependence
Magnetic properties
CO-NI ALLOYS
EVOLUTION REACTION
FACILE SYNTHESIS
LIQUID POLYOL
COBALT
NANOSTRUCTURES
NANOWIRES
ANISOTROPY
REDUCTION
GROWTH
Weak extinction versus global exponential growth of total mass for superdiffusions
其他
2016-01-01
Englaender, Janos
;
Ren, Yan-Xia
;
Song, Renming
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Superdiffusion
Superprocess
Measure-valued process
Gauge theorem
Kato class
Growth bound
Principal eigenvalue
h-transform
Weak extinction
Total mass
MEASURE-VALUED DIFFUSIONS
BRANCHING-PROCESSES
BROWNIAN-MOTION
SCHRODINGER SEMIGROUPS
POSITIVE SOLUTIONS
OCCUPATION TIMES
LOCAL EXTINCTION
OPERATORS
GAUGEABILITY
CONSTRUCTION
Exponential rate of periodic points and metric entropy in nonuniformly hyperbolic systems
其他
2016-01-01
Liao, Gang
;
Sun, Wenxiang
;
Yang, Yun
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Metric entropy
Periodic points
Weak shadowing property
AXIOM-A-DIFFEOMORPHISMS
INVARIANT-MEASURES
ORBITS
A low-complexity and energy-efficient dynamical adjustment strategy for servers in a data center
其他
2016-01-01
Tan, Zhongwei
;
Yang, Chuanchuan
;
Xu, Zhaopeng
;
Zheng, Ziyuan
;
Liu, Yu
;
Wang, Xinyue
;
Wang, Ziyu
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
A Low-complexity and Energy-efficient Dynamical Adjustment Strategy for Servers in a Data Center
其他
2016-01-01
Tan, Zhongwei
;
Yang, Chuanchuan
;
Xu, Zhaopeng
;
Zheng, Ziyuan
;
Liu, Yu
;
Wang, Xinyue
;
Wang, Ziyu
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Data center
low-complexity
quality of service (QoS)
energy-efficient
RENEWABLE-ENERGY
The experimental study on the correlation of resistivity and damage for conductive concrete
期刊论文
CEMENT & CONCRETE COMPOSITES, 2016
Chu, Hong-yan
;
Chen, Jian-kang
收藏
  |  
浏览/下载:111/0
  |  
提交时间:2017/12/03
Concrete
Carbon fiber
Resistivity
Damage
Ultrasonic wave
Electrical conductivity
FIBER-REINFORCED CEMENT
ELECTRICAL-RESISTANCE MEASUREMENT
PERCOLATION
TOMOGRAPHY
EVOLUTION
SULFATE
TENSION
MORTAR
MODEL
POWER-LAW DISTRIBUTIONS BASED ON EXPONENTIAL DISTRIBUTIONS: LATENT SCALING, SPURIOUS ZIPF'S LAW, AND FRACTAL RABBITS
期刊论文
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY, 2015
Chen, Yanguang
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Inverse Power Law
Exponential Distribution
Latent Scaling
Clark&apos
Zipf&apos
Fractals
Urban Form
City-Size Distribution
URBAN-POPULATION DENSITY
RANK-SIZE RULE
GROWTH PATTERNS
CITIES
MODELS
SETTLEMENTS
PERSPECTIVE
DIMENSION
SYSTEMS
SHAPE
s Law
s Law
The distance-decay function of geographical gravity model: Power law or exponential law?
期刊论文
CHAOS SOLITONS & FRACTALS, 2015
Chen, Yanguang
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
URBAN-GROWTH
CITIES
MIGRATION
CHINA
SIZE
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