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科研机构
北京大学 [14]
内容类型
期刊论文 [9]
其他 [4]
会议论文 [1]
发表日期
2017 [3]
2016 [4]
2010 [1]
2009 [2]
2007 [3]
2005 [1]
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专题:北京大学
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Weakening temperature control on the interannual variations of spring carbon uptake across northern lands
期刊论文
NATURE CLIMATE CHANGE, 2017
Piao, Shilong
;
Liu, Zhuo
;
Wang, Tao
;
Peng, Shushi
;
Ciais, Philippe
;
Huang, Mengtian
;
Ahlstrom, Anders
;
Burkhart, John F.
;
Chevallier, Frederic
;
Janssens, Ivan A.
;
Jeong, Su-Jong
;
Lin, Xin
;
Mao, Jiafu
;
Miller, John
;
Mohammat, Anwar
;
Myneni, Ranga B.
;
Penuelas, Josep
;
Shi, Xiaoying
;
Stohl, Andreas
;
Yao, Yitong
;
Zhu, Zaichun
;
Tans, Pieter P.
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2017/12/03
ATMOSPHERIC CO2
FOREST
MODEL
SENSITIVITY
ECOSYSTEMS
LATITUDES
PHENOLOGY
DIOXIDE
BALANCE
SEASON
基于ELM算法的光纤振动信号识别研究
期刊论文
计算机工程与应用, 2017
邹柏贤
;
苗军
;
许少武
;
逯燕玲
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
事件
光纤振动信号
实验样本
极限学习机(ELM)
识别率
event
optical fiber vibration signal
experimental sample
Extreme Learning Machine(ELM)
recognition rate
Spin dynamics of magnetic resonance with parametric modulation in a potassium vapor cell
期刊论文
CHINESE PHYSICS B, 2017
Zhang, Rui
;
Wang, Zhi-Guo
;
Peng, Xiang
;
Li, Wen-Hao
;
Li, Song-Jian
;
Guo, Hong
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
atomic magnetometer
magnetic resonance
parametric modulation
LEVEL-CROSSING RESONANCES
ZERO-FIELD
Synthetic-wavelength self-mixing interferometry for displacement measurement
期刊论文
OPTICS COMMUNICATIONS, 2016
Chen, Junbao
;
Zhu, Hongbin
;
Xia, Wei
;
Guo, Dongmei
;
Hao, Hui
;
Wang, Ming
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Self-mixing interference
Synthetic-wavelength
Zero-crossing phase detecting
Displacement measurement
LASER FEEDBACK INTERFEROMETRY
OPTICAL-FEEDBACK
SEMICONDUCTOR-LASERS
PHASE DIFFERENCE
DIODE-LASER
INTERFERENCE
INTENSITY
SENSOR
CAVITY
Effect of Oscillation Structures on Inertial-Range Intermittence and Topology in Turbulent Field
期刊论文
COMMUNICATIONS IN COMPUTATIONAL PHYSICS, 2016
Yang, Kun
;
Xia, Zhenhua
;
Shi, Yipeng
;
Chen, Shiyi
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Oscillation structure
intermittency
transverse velocity
passive scalar
TRANSVERSE STRUCTURE FUNCTIONS
HIGH-REYNOLDS-NUMBER
REFINED SIMILARITY HYPOTHESES
DIRECT NUMERICAL-SIMULATION
FULLY-DEVELOPED TURBULENCE
VELOCITY-GRADIENT TENSOR
LARGE-EDDY SIMULATION
ISOTROPIC TURBULENCE
PASSIVE SCALARS
LOCAL-STRUCTURE
A new distributed Zeno-free event-triggered algorithm for multi-agent consensus
会议论文
Sun, Zhiyong
;
Huang, Na
;
Anderson, Brian D. O.
;
Duan, Zhisheng
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
NONLINEAR-SYSTEMS
AVERAGE CONSENSUS
COORDINATION
Robust Precise Time Difference Estimation Based on Digital Zero-Crossing Detection Algorithm
期刊论文
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2016
Chen, Zhipeng
;
Li, Zhaohui
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/04
Digital zero-crossing detection
signal reconstruction
time difference estimation
time interval
ultrasonic flow measurement
SAW FILTER EXCITATION
DELAY
CONVERTER
SYSTEMS
Measurement of center of rotation for projection in X-ray two-dimensional computed tomography system
其他
2010-01-01
Li, Baolei
;
Zhang, Yaojun
;
Mo, Yang
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/13
Assessing severity of obstructive sleep apnea by fractal dimension sequence analysis of sleep EEG
期刊论文
physica a statistical mechanics and its applications, 2009
Zhang, J.
;
Yang, X. C.
;
Luo, L.
;
Shao, J.
;
Zhang, C.
;
Ma, J.
;
Wang, G. F.
;
Liu, Y.
;
Peng, C.K.
;
Fang, J.
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/12
OSAHS
Fractal dimension
AHI
NONSTATIONARY TIME-SERIES
Simulated Phase-Locking Stimulation: An Improved Speech Processing Strategy for Cochlear Implants
期刊论文
2009
Chen, Jing
;
Wu, Xihong
;
Li, Liang
;
Chi, Huisheng
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2015/11/13
Speech processing strategy
Cochlear implant
Phase information
Chinese speech
CHINESE SPEECH
RECOGNITION
PERCEPTION
INFORMATION
CUES
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