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科研机构
北京大学 [154]
内容类型
期刊论文 [78]
其他 [67]
会议论文 [9]
发表日期
2017 [8]
2016 [29]
2015 [17]
2014 [12]
2013 [22]
2012 [10]
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专题:北京大学
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Optimized Multiresidue Analysis of Organic Contaminants of Priority Concern in a Daily Consumed Fish (Grass Carp)
期刊论文
JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY, 2017
He, Wei
;
Chen, Yanru
;
Yang, Chen
;
Liu, Wenxiu
;
Kong, Xiangzhen
;
Qin, Ning
;
He, Qishuang
;
Xu, Fuliu
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
POLYCYCLIC AROMATIC-HYDROCARBONS
POLYBROMINATED DIPHENYL ETHERS
ACCELERATED SOLVENT-EXTRACTION
GEL-PERMEATION CHROMATOGRAPHY
ORGANOCHLORINE PESTICIDE-RESIDUES
POLYCHLORINATED-BIPHENYLS PCBS
PRESSURIZED LIQUID EXTRACTION
MICROWAVE-ASSISTED EXTRACTION
BIOLOGICAL MATRICES
SUPERCRITICAL-FLUID
Management outweighs climate change on affecting length of rice growing period for early rice and single rice in China during 1991-2012
期刊论文
AGRICULTURAL AND FOREST METEOROLOGY, 2017
Wang, Xuhui
;
Ciais, Philippe
;
Li, Laurent
;
Ruget, Francois
;
Vuichard, Nicolas
;
Viovy, Nicolas
;
Zhou, Feng
;
Chang, Jinfeng
;
Wu, Xiuchen
;
Zhao, Hongfang
;
Piao, Shilong
收藏
  |  
浏览/下载:47/0
  |  
提交时间:2017/12/03
Length of growing period
Rice
Climate change
Crop management
ORCHIDEE-crop
China
WINTER-WHEAT PHENOLOGY
PAST 3 DECADES
CROP MANAGEMENT
GROWTH DURATION
EXTREME HEAT
FIELD CROPS
YIELD
IMPACTS
MODELS
TEMPERATURE
Reducing the uncertainty of parameters controlling seasonal carbon and water fluxes in Chinese forests and its implication for simulated climate sensitivities
期刊论文
GLOBAL BIOGEOCHEMICAL CYCLES, 2017
Li, Yue
;
Yang, Hui
;
Wang, Tao
;
MacBean, Natasha
;
Bacour, Cedric
;
Ciais, Philippe
;
Zhang, Yiping
;
Zhou, Guangsheng
;
Piao, Shilong
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
NET ECOSYSTEM EXCHANGE
LAND-SURFACE MODEL
GLOBAL VEGETATION MODELS
EARTH SYSTEM MODELS
EDDY-COVARIANCE
TERRESTRIAL BIOSPHERE
DATA ASSIMILATION
FUTURE CLIMATE
ENVIRONMENTAL CONTROLS
NONLINEAR INVERSION
IMPROVED GRAY-ENCODED EVOLUTION ALGORITHM BASED ON CHAOS CLUSTER FOR PARAMETER OPTIMIZATION OF MOISTURE MOVEMENT
期刊论文
THERMAL SCIENCE, 2017
Yang, Xiao-Hua
;
Li, Yu-Qi
;
Wang, Kai-Wen
;
Sun, Bo-Yang
;
Ye, Yi
;
Li, Mei-Shui
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
parameter optimization
gray-encoded evolution algorithm
van Genuchten model
precision
moisture movement
SYSTEMS
Ground-State Structure of YN2 Monolayer Identified by Global Search
期刊论文
JOURNAL OF PHYSICAL CHEMISTRY C, 2017
Gong, Sheng
;
Zhang, Cunzhi
;
Wang, Shuo
;
Wang, Qian
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
CAPACITY ELECTRODE MATERIAL
ION BATTERIES
MOS2
FERROMAGNETISM
HYDROGENATION
PREDICTION
PERNITRIDE
DYNAMICS
GRAPHENE
STRAIN
Label Information Guided Graph Construction for Semi-Supervised Learning
期刊论文
IEEE TRANSACTIONS ON IMAGE PROCESSING, 2017
Zhuang, Liansheng
;
Zhou, Zihan
;
Gao, Shenghua
;
Yin, Jingwen
;
Lin, Zhouchen
;
Ma, Yi
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Label information
low-rank representation
semi-supervised graph learning
LOW-RANK REPRESENTATION
NONNEGATIVE LOW-RANK
SUBSPACE SEGMENTATION
IMAGE SEGMENTATION
SPARSE GRAPH
Learning Discriminative Subspaces on Random Contrasts for Image Saliency Analysis
期刊论文
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, 2017
Fang, Shu
;
Li, Jia
;
Tian, Yonghong
;
Huang, Tiejun
;
Chen, Xiaowu
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
Fixation prediction
learning-based model
random contrast
subspace analysis
visual saliency
VISUAL SALIENCY
REGION DETECTION
NATURAL STATISTICS
VIDEO COMPRESSION
GLOBAL FEATURES
EYE-MOVEMENTS
ATTENTION
SCENE
MODEL
FRAMEWORK
Closed loop geometry based optimization by integrating subdivision, reanalysis and metaheuristic searching techniques
期刊论文
COMPUTERS & STRUCTURES, 2017
Huang, Guanxin
;
Wang, Hu
;
Wang, Guoping
;
Li, Guangyao
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Geometry based optimization
Subdivision
Reanalysis
Independent coefficient technique
Metaheuristic algorithms
STRUCTURAL MODAL REANALYSIS
FINITE-ELEMENT-ANALYSIS
TOPOLOGICAL MODIFICATIONS
COMBINED APPROXIMATIONS
STATIC REANALYSIS
ACCURATE REANALYSIS
DYNAMIC REANALYSIS
UNIFIED APPROACH
KIRSCH METHOD
ALGORITHM
Nitrogen application increases phytolith carbon sequestration in degraded grasslands of North China
期刊论文
ECOLOGICAL RESEARCH, 2016
Zhao, Yuying
;
Song, Zhaoliang
;
Xu, Xiaotian
;
Liu, Hongyan
;
Wu, Xiuchen
;
Li, Zimin
;
Guo, Fengshan
;
Pan, Wenjie
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Phytoliths
Nitrogen application
PhytOC
Degraded grasslands
Carbon sequestration
INNER-MONGOLIA
BIOGEOCHEMICAL SEQUESTRATION
PRIMARY PRODUCTIVITY
TEMPERATE STEPPE
BIOGENIC SILICA
CYCLES
CO2
LIMITATION
ECOSYSTEM
IMPACT
Reducing uncertainties in decadal variability of the global carbon budget with multiple datasets
期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2016
Li, Wei
;
Ciais, Philippe
;
Wang, Yilong
;
Peng, Shushi
;
Broquet, Gregoire
;
Ballantyne, Ashley P.
;
Canadell, Josep G.
;
Cooper, Leila
;
Friedlingstein, Pierre
;
Le Quere, Corinne
;
Myneni, Ranga B.
;
Peters, Glen P.
;
Piao, Shilong
;
Pongratz, Julia
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
global carbon budget
carbon cycle
decadal variations
Bayesian fusion
CO2 FLUX VARIABILITY
MIXED-LAYER SCHEME
LAND-USE
OCEAN
SINK
TRENDS
ECOSYSTEMS
EMISSIONS
DIOXIDE
AMERICA
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