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科研机构
北京大学 [119]
内容类型
期刊论文 [64]
其他 [47]
会议论文 [8]
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2017 [10]
2016 [19]
2015 [11]
2014 [8]
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专题:北京大学
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Changes of carbon stocks in alpine grassland soils from 2002 to 2011 on the Tibetan Plateau and their climatic causes
期刊论文
GEODERMA, 2017
Chen, Litong
;
Jing, Xin
;
Flynn, Dan F. B.
;
Shi, Yue
;
Kuehn, Peter
;
Scholten, Thomas
;
He, Jin-Sheng
收藏
  |  
浏览/下载:112/0
  |  
提交时间:2017/12/03
Soil organic carbon (SOC)
SOC stocks
Repeated soil inventory
Alpine meadow
Alpine steppe
Tibetan Plateau
NET PRIMARY PRODUCTIVITY
ORGANIC-CARBON
TERRESTRIAL ECOSYSTEMS
RECENT DECADES
ARCTIC TUNDRA
FOREST SOILS
GREEN-UP
NITROGEN
CHINA
DYNAMICS
Collecting Particulate Matter and Particle-Bound Polycyclic Aromatic Hydrocarbons Using a Cylindrical Thermal Precipitator
期刊论文
JOURNAL OF ENVIRONMENTAL ENGINEERING, 2017
Su, Shu
;
Wang, Bin
;
Lin, Nan
;
Zhuo, Shaojie
;
Liu, Junfeng
;
Wang, Xilong
;
Cheng, Hefa
;
Chen, Da-Ren
;
Zeng, Eddy Y.
;
Tao, Shu
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
Thermophoresis
Thermal precipitator
Particulate matter
Polycyclic aromatic hydrocarbon
Sampling
Collection efficiency
AIR-POLLUTION
THERMOPHORETIC PRECIPITATOR
NANOPARTICLE SAMPLER
SIZE FRACTIONS
IN-VITRO
CELLS
DEPOSITION
DESIGN
FINE
ULTRAFINE
Evaluation of passive sampling of gaseous mercury using different sorbing materials
期刊论文
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2017
Lin, Huiming
;
Zhang, Wei
;
Deng, Chunyan
;
Tong, Yingdong
;
Zhang, Qianggong
;
Wang, Xuejun
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Passive sampler
Gaseous mercury
Sampling rate
Sorbing material
Uptake curve
PERSISTENT ORGANIC POLLUTANTS
IMPREGNATED ACTIVATED CARBON
ATMOSPHERIC MERCURY
ELEMENTAL MERCURY
METEOROLOGICAL FACTORS
DRY DEPOSITION
AIR SAMPLERS
AMBIENT AIR
ADSORPTION
CHINA
中国鱼类硼本底含量调查研究
其他
2017-01-01
王彝白纳
;
雍凌
;
毛伟峰
;
耿直
;
张磊
;
周萍萍
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
硼
鱼类
本底值
boron
fish
background value
Randomized algorithms for high quality treatment planning in volumetric modulated arc therapy
其他
2017-01-01
Yang, Yu
;
Dong, Bin
;
Wen, Zaiwen
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
volumetric modulated arc therapy
greedy algorithm
gradient projection
random sampling
importance sampling
GRADIENT METHODS
IMRT
OPTIMIZATION
Rich Dynamics Underlying Solution Reactions Revealed by Sampling and Data Mining of Reactive Trajectories
期刊论文
ACS CENTRAL SCIENCE, 2017
Zhang, Jun
;
Zhang, Zhen
;
Yang, Yi Isaac
;
Liu, Sirui
;
Yang, Lijiang
;
Gao, Yi Qin
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
CHEMICAL-REACTIONS
CLAISEN REARRANGEMENT
TRANSITION-STATES
ORGANIC-SYNTHESIS
IN-WATER
ISOMERIZATION
MECHANICS
BARRIER
PROTEIN
MOTION
Liquid impinger BioSampler's performance for size-resolved viable bioaerosol particles
期刊论文
JOURNAL OF AEROSOL SCIENCE, 2017
Zheng, Yunhao
;
Yao, Maosheng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
BioSampler
UV-APS
Collection efficiency
Size-resolved bioaerosol particles
AIRBORNE MICROORGANISMS
ELECTROSTATIC SAMPLER
PARTICULATE MATTER
AEROSOL COLLECTION
AIR
BACTERIAL
RELEASE
VIRUS
A HYBRID APPROACH FOR 3D FULL-FIELD MEASUREMENT ON A CLOSED SLINGER COMBUSTOR BY HYDRAULIC SIMULATIONS
会议论文
Jia, Lichao
;
Yang, Lili
;
Yuan, Huijing
;
Jia, Yongxia
;
Wang, Yiyang
;
Feng, Yang
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
PARTICLE TRACKING VELOCIMETRY
3-DIMENSIONAL FLOWS
IMAGE VELOCIMETRY
Stand-alone differential capacitance force sensors with sub-nano-newton sensitivity
期刊论文
JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 2017
Ye, Jilong
;
Sun, Taotao
;
Huang, Dong
;
Li, Zhihong
;
Lin, Li
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
capacitive force sensor
sub-nano-newton sensitivity
asymmetric differential structure
hydrophobization treatment
stand-alone device
DIAMAGNETIC LEVITATION
MICROSCOPY
CALIBRATION
CANTILEVERS
STRENGTH
Optical sampling analog-to-digital converter based on two asynchronous mode-locked fiber lasers
期刊论文
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2017
Meng, Hongling
;
Leng, Jianxiao
;
Qian, Cheng
;
Zhao, Jianye
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
PHOTONIC SAMPLER
CONVERSION
TIME
MODULATORS
PERFORMANCE
RESOLUTION
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