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科研机构
北京大学 [230]
内容类型
期刊论文 [118]
其他 [107]
会议论文 [5]
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2017 [25]
2016 [27]
2015 [26]
2014 [24]
2013 [18]
2012 [12]
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专题:北京大学
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Assessing plant senescence reflectance index-retrieved vegetation phenology and its spatiotemporal response to climate change in the Inner Mongolian Grassland
期刊论文
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, 2017
Ren, Shilong
;
Chen, Xiaoqiu
;
An, Shuai
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/04
Grassland phenology
Remote sensing
Plant senescence reflectance index
Temperature and precipitation
Spatiotemporal response
Spatiotemporal pattern
GROWING-SEASON
SATELLITE DATA
SPRING PHENOLOGY
AIR-TEMPERATURE
NORTHERN CHINA
TREE PHENOLOGY
EASTERN CHINA
TIME-SERIES
MODIS DATA
REGION
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
Deep Vein: Novel Finger Vein Verification Methods Based on Deep Convolutional Neural Networks
其他
2017-01-01
Huang, Houjun
;
Liu, Shilei
;
Zheng, He
;
Ni, Liao
;
Zhang, Yi
;
Li, Wenxin
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
RECOGNITION
EXTRACTION
PATTERN
RAIM and AUKF for GNSS Performance Enhancement in Multi-Constellation
其他
2017-01-01
Meng, F. C.
;
Meng, X.
;
Tao, L.
;
Sun, J. R.
;
Niu, Z.
;
Zhu, B. C.
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
GNSS
Satellite selection
GDOP
RAIM
FDE
AUKF
SATELLITE SELECTION ALGORITHM
GPS
Thermal Conductivity of Graphene-Polymer Composites: Mechanisms, Properties, and Applications
期刊论文
POLYMERS, 2017
Li, An
;
Zhang, Cong
;
Zhang, Yang-Fei
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
graphene
polymer composites
thermal conductivity
mechanisms
properties
applications
PHASE-CHANGE MATERIALS
DEFECT-FREE GRAPHENE
ELECTRICAL-CONDUCTIVITY
EPOXY COMPOSITES
ENERGY-STORAGE
FUNCTIONALIZED GRAPHENE
MOLECULAR-DYNAMICS
POLYETHYLENE COMPOSITES
SEGREGATED STRUCTURE
INTERFACE MATERIALS
Monte Carlo simulation of Ray-Scan 64 PET system and performance evaluation using GATE toolkit
期刊论文
JOURNAL OF INSTRUMENTATION, 2017
Li, Suying
;
Zhang, Qiushi
;
Vuletic, Ivan
;
Xie, Zhaoheng
;
Yang, Kun
;
Ren, Qiushi
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
Gamma camera, SPECT, PET, PET/CT, coronary CT angiography (CTA)
Models and simulations
Simulation methods and programs
RECONSTRUCTION
PLATFORM
Multi-step wind speed forecasting based on a hybrid forecasting architecture and an improved bat algorithm
期刊论文
ENERGY CONVERSION AND MANAGEMENT, 2017
Xiao, Liye
;
Qian, Feng
;
Shao, Wei
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Hybrid forecasting architecture
Improved bat algorithm
Singular spectrum analysis, wind speed forecasting
ARTIFICIAL NEURAL-NETWORKS
EMPIRICAL MODE DECOMPOSITION
SUPPORT VECTOR MACHINES
MULTIOBJECTIVE OPTIMIZATION
INSPIRED ALGORITHM
ELECTRICAL-POWER
WAVELET PACKET
TIME-SERIES
PREDICTION
CLASSIFICATION
Geometric design of micron-sized crystalline silicon anodes through in situ observation of deformation and fracture behaviors
期刊论文
JOURNAL OF MATERIALS CHEMISTRY A, 2017
Zhang, Xing-yu
;
Song, Wei-Li
;
Liu, Zhanli
;
Chen, Hao-Sen
;
Li, Teng
;
Wei, Yujie
;
Fang, Dai-ning
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
LITHIUM-ION BATTERIES
NEGATIVE ELECTRODES
ENERGY DENSITY
LITHIATION
LI
INSERTION
NANOPILLARS
PARTICLES
KINETICS
FAILURE
矿井提升机恒减速制动系统故障仿真分析
期刊论文
工矿自动化, 2017
李娟娟
;
胡亮
;
孟国营
;
谢广明
;
汪爱明
;
王帅
;
贾一凡
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
矿井提升机
恒减速制动系统
故障仿真
弹簧刚度
闸瓦摩擦因数
制动器泄漏
mine hoist
constant deceleration braking system
fault simulation
spring stiffness
friction factor of brake shoe
brake leakage
To probe the performance of perovskite memory devices: defects property and hysteresis
期刊论文
JOURNAL OF MATERIALS CHEMISTRY C, 2017
Xu, Ziqi
;
Liu, Zonghao
;
Huang, Yuan
;
Zheng, Guanhaojie
;
Chen, Qi
;
Zhou, Huanping
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
RESISTIVE SWITCHING BEHAVIOR
TRANSITION-METAL OXIDES
SOLAR-CELLS
IODIDE
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