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科研机构
北京大学 [46]
内容类型
期刊论文 [32]
会议论文 [8]
其他 [6]
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2017 [4]
2016 [6]
2015 [7]
2014 [2]
2013 [4]
2012 [3]
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专题:北京大学
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退耕还林(草)工程实施前后黄土高原植被覆盖时空变化分析
期刊论文
自然资源学报, 2017
赵安周
;
张安兵
;
刘海新
;
刘焱序
;
王贺封
;
王冬利
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
退耕还林(草)
黄土高原
GIMMS NDVI3g
Grain for Green Project
GIMMS NDVI3g
Loess Plateau
Dynamic arsenic aging processes and their mechanisms in nine types of Chinese soils
期刊论文
CHEMOSPHERE, 2017
Wang, Yanan
;
Zeng, Xibai
;
Lu, Yahai
;
Bai, Lingyu
;
Su, Shiming
;
Wu, Cuixia
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Arsenic (As)
Soil types
Aging mechanism
Approximate aging equilibrium time
Kinetic equation fitting
CONTAMINATED SOILS
COMPETITIVE ADSORPTION
SEQUENTIAL EXTRACTION
DIFFUSIVE GRADIENTS
PHOSPHATE RELEASE
ACTIVATED ALUMINA
SOUTHEAST CHINA
CLAY-MINERALS
BIOACCESSIBILITY
KINETICS
The depth dependent hardness of bicrystals with dislocation transmission through grain boundaries: A theoretical model
期刊论文
INTERNATIONAL JOURNAL OF PLASTICITY, 2017
Xiao, Xiazi
;
Terentyev, Dmitry
;
Chen, Qianying
;
Yu, Long
;
Chen, Lirong
;
Bakaev, A.
;
Duan, Huiling
收藏
  |  
浏览/下载:114/0
  |  
提交时间:2017/12/03
Dislocations
Grain boundaries
Metallic material
Hardness
STRAIN GRADIENT PLASTICITY
SLIP TRANSMISSION
LATTICE DISLOCATIONS
ATOMISTIC SIMULATION
FCC METAL
NANOINDENTATION
DEFORMATION
SIZE
INDENTATION
NUCLEATION
Fracture strength of the particulate-reinforced ultra-high temperature ceramics based on a temperature dependent fracture toughness model
期刊论文
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2017
Wang, Ruzhuan
;
Li, Weiguo
;
Ji, Baohua
;
Fang, Daining
收藏
  |  
浏览/下载:119/0
  |  
提交时间:2017/12/03
fracture
fracture toughness
microstructures
ceramic material
Temperature dependent model
SILICON CARBIDE CERAMICS
MECHANICAL-PROPERTIES
ZRB2-SIC COMPOSITES
BRITTLE SOLIDS
THERMAL-SHOCK
SIC CERAMICS
GRAIN-SIZE
ZIRCONIUM
BEHAVIOR
MICROSTRUCTURE
Spatial identification of multifunctional landscapes and associated influencing factors in the Beijing-Tianjin-Hebei region, China
期刊论文
APPLIED GEOGRAPHY, 2016
Peng, Jian
;
Chen, Xin
;
Liu, Yanxu
;
Lu, Huiling
;
Hu, Xiaoxu
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Multifunctional landscapes
Spatial identification
Landscape function interactions
Influencing factors
Beijing-Tianjin-Hebei region
China
ECOSYSTEM SERVICES
LAND-USE
MODEL
INDICATORS
DYNAMICS
IMPLEMENTATION
URBANIZATION
RESTORATION
IMPACTS
Thermal conductivity of surficial lunar regolith estimated from Lunar Reconnaissance Orbiter Diviner Radiometer data
期刊论文
PLANETARY AND SPACE SCIENCE, 2016
Yu, Shuoran
;
Fa, Wenzhe
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Moon
Regoliths
Thermal conductivity
Infrared observations
SIMPLEX-METHOD
AGE
多尺度地名地址空间区位编码模型研究
期刊论文
地球信息科学学报, 2016
陈东
;
程承旗
;
童晓冲
;
原璟
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/04
地名地址
空间区位
地球剖分
编码
address
spatial location
global subdivision
coding
SorGSD: a sorghum genome SNP database
期刊论文
BIOTECHNOLOGY FOR BIOFUELS, 2016
Luo, Hong
;
Zhao, Wenming
;
Wang, Yanqing
;
Xia, Yan
;
Wu, Xiaoyuan
;
Zhang, Limin
;
Tang, Bixia
;
Zhu, Junwei
;
Fang, Lu
;
Du, Zhenglin
;
Bekele, Wubishet A.
;
Tai, Shuaishuai
;
Jordan, David R.
;
Godwin, Ian D.
;
Snowdon, Rod J.
;
Mace, Emma S.
;
Jing, Hai-Chun
;
Luo, Jingchu
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Sorghum
Bio-energy plant
Genome variation
SNPs
Database curation
DNA-SEQUENCING DATA
WIDE ASSOCIATION
BIOENERGY CROPS
GRAIN-SORGHUM
DISCOVERY
BICOLOR
MODEL
FRAMEWORK
GRASSES
SYSTEM
Effects of alloying elements (Ca and Sr) on microstructure, mechanical property and in vitro corrosion behavior of biodegradable Zn-1.5Mg alloy
期刊论文
JOURNAL OF ALLOYS AND COMPOUNDS, 2016
Liu, Xiwei
;
Sun, Jianke
;
Qiu, Kejin
;
Yang, Yinghong
;
Pu, Zhongjie
;
Li, Li
;
Zheng, Yufeng
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Zn-Mg-Ca
Zn-Mg-Sr
Microstructure
Mechanical property
Corrosion
ZN-BASED ALLOYS
ATMOSPHERIC CONDITIONS
MAGNESIUM ALLOYS
STEEL SHEET
PURE ZN
MG
ZINC
CYTOTOXICITY
BONE
PRODUCTS
AUCTION POLICY ANALYSIS: AN AGENT-BASED SIMULATION OPTIMIZATION MODEL OF GRAIN MARKET
会议论文
Huang, Jingsi
;
Liu, Lingyan
;
Shi, Leyuan
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
ORDINAL OPTIMIZATION
BUDGET ALLOCATION
SELECTION
SYSTEMS
NUMBER
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