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科研机构
北京大学 [314]
内容类型
期刊论文 [164]
其他 [124]
会议论文 [26]
发表日期
2017 [22]
2016 [25]
2015 [28]
2014 [31]
2013 [16]
2012 [20]
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专题:北京大学
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生态系统服务供给和需求研究进展
期刊论文
地理学报, 2017
马琳
;
刘浩
;
彭建
;
吴健生
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
实际供给
潜在供给
实现需求
总量需求
生态系统服务流
ARIES
actual supply
potential supply
satisfied demand
total demand
ecosystem services flow
ARIES
Becoming a backpacker in China: A grounded theory approach to identity construction of backpackers
期刊论文
ANNALS OF TOURISM RESEARCH, 2017
Zhang, Jingru
;
Tucker, Hazel
;
Morrison, Alastair M.
;
Wu, Bihu
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Backpackers
Backpacking
Identity
Social construction
Becoming
Grounded theory
LIFE-STYLE TRAVELERS
PERSONAL DEVELOPMENT
BUDGET TRAVELERS
TOURISM
CULTURE
MOTIVATIONS
SCALE
Asymmetric competition for light varies across functional groups
期刊论文
JOURNAL OF PLANT ECOLOGY, 2017
Guo, Qiang
;
Chi, Xiulian
;
Xie, Zongqiang
;
Tang, Zhiyao
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
asymmetric competition
tree height
metabolic scaling theory
tree growth
functional group
TREE GROWTH
SHADE TOLERANCE
RAIN-FOREST
LEAF ATTRIBUTES
WOODY-PLANTS
SIZE
EVERGREEN
HEIGHT
TRAITS
MODEL
K2O及其类似氧化物的第一性原理计算
期刊论文
科技通报, 2017
聂淑芳
;
苏星瑶
;
王洋
;
姜源
;
吴圣
;
赵习
;
蒋启财
收藏
  |  
浏览/下载:56/0
  |  
提交时间:2017/12/03
密度泛函理论
立方结构氧化物
状态方程
机械性质
density functional theory
cubic structural oxides
equation of state
mechanical properties
A new Ca3MgSi2O8 compound and some of its thermodynamic properties
期刊论文
JOURNAL OF SOLID STATE CHEMISTRY, 2017
Bao, Xinjian
;
Zhang, Yanyao
;
Zhang, Zhigang
;
Zhang, Lifei
;
Liu, Xiaoyang
;
Dong, Jianjun
;
Liu, Xi
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
New Ca3MgSi2Os compound
Single-crystal X-ray diffraction
First-principles simulation
Compressibility
Heat capacity
Standard vibrational entropy
P2(1)/C-C2/C PHASE-TRANSITION
X-RAY
BEHAVIOR
SIMULATION
MERWINITE
MANTLE
FULL
The Dedekind eta-function, a Hauptmodul for Gamma(0)(13), and invariant theory
其他
2017-01-01
Yang, Lei
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Theta constants
Hauptmodul
Modular equations
PARTITIONS
IDENTITIES
Maximum orders of cyclic group actions on surfaces extending over the 3-dimensional torus
其他
2017-01-01
Wang, Chao
;
Wang, Shicheng
;
Zhang, Yimu
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Maximum order
extendable action
3-torus
orbifold
Vertex-imprimitive symmetric graphs with exactly one edge between any two distinct blocks
其他
2017-01-01
Fang, Teng
;
Fang, Xin Gui
;
Xia, Binzhou
;
Zhou, Sanming
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Symmetric graph
arc-Transitive graph
Flag graph
Spread
2-ARC TRANSITIVE QUOTIENTS
PERMUTATION-GROUPS
Performance of TD-DFT for Excited States of Open-Shell Transition Metal Compounds
期刊论文
JOURNAL OF PHYSICAL CHEMISTRY A, 2017
Suo, Bingbing
;
Shen, Kaiyuan
;
Li, Zhendong
;
Liu, Wenjian
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
DENSITY-FUNCTIONAL THEORY
MULTIREFERENCE PERTURBATION-THEORY
GAUSSIAN-BASIS SETS
GENERALIZED-GRADIENT-APPROXIMATION
CORRELATED MOLECULAR CALCULATIONS
CONFIGURATION-INTERACTION METHOD
POTENTIAL-ENERGY SURFACES
MODEL-SPACE COEFFICIENTS
COUPLED-CLUSTER METHOD
ANO BASIS-SETS
Strong Adlayer-Substrate Interactions "Break" the Patching Growth of h-BN onto Graphene on Re(0001)
期刊论文
ACS NANO, 2017
Qi, Yue
;
Han, Nannan
;
Li, Yuanchang
;
Zhang, Zhepeng
;
Zhou, Xiebo
;
Deng, Bing
;
Li, Qiucheng
;
Liu, Mengxi
;
Zhao, Jijun
;
Liu, Zhongfan
;
Zhang, Yanfeng
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
graphene and hexagonal boron nitride heterostructures
ultra-high-vacuum scanning tunneling microscopy/spectroscopy
preferable nucleation
edges of Re steps and graphene domains
HEXAGONAL BORON-NITRIDE
DER-WAALS HETEROSTRUCTURES
CHEMICAL-VAPOR-DEPOSITION
LIGHT-EMITTING-DIODES
INPLANE HETEROSTRUCTURES
ELECTRONIC-PROPERTIES
MOLYBDENUM-DISULFIDE
ATOMIC LAYERS
INTERFACE
BOUNDARY
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