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科研机构
北京大学 [31]
内容类型
期刊论文 [26]
其他 [4]
会议论文 [1]
发表日期
2017 [3]
2016 [4]
2015 [1]
2014 [7]
2013 [2]
2012 [2]
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专题:北京大学
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南极半岛屈韦维尔岛白垩纪中期火山岩浆作用及其构造指示:锆石U-Pb年代学和Hf同位素制约
期刊论文
岩石学报, 2017
郑光高
;
刘晓春
;
赵越
;
王伟
;
陈龙耀
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
锆石U-Pb年龄
Hf同位素
南极半岛
白垩纪中期
岛弧环境
Zircon U-Pb dating
Zircon Hf isotope
Antarctic Peninsula
Mid-Cretaceous
Island arc setting
SOUTH SHETLAND ISLANDS
EASTERN PALMER-LAND
COAST INTRUSIVE SUITE
PACIFIC MARGIN
ICP-MS
LU-HF
SUBDUCTION HISTORY
LIVINGSTON ISLAND
CONTINENTAL-CRUST
SILICIC VOLCANISM
Geochemistry and zircon U-Pb-Hf isotopes of the late Neoarchean granodiorite-monzogranite-quartz syenite intrusions in the Northern Liaoning Block, North China Craton: Petrogenesis and implications for geodynamic processes
期刊论文
PRECAMBRIAN RESEARCH, 2017
Wang, Kang
;
Liu, Shuwen
;
Wang, Maojiang
;
Yan, Ming
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Granodiorite-monzogranite-quartz syenite
Northern Liaoning Block
Late Neoarchean
Active continental margin
Lateral growth
North China Craton
ULTRAHIGH-TEMPERATURE METAMORPHISM
SOUTHERN JILIN PROVINCE
WHOLE-ROCK GEOCHEMISTRY
GRANITE-GREENSTONE BELT
ARCHEAN CRUSTAL GROWTH
EASTERN HEBEI
LU-HF
CONTINENTAL-CRUST
CENTRAL ZONE
JUVENILE MAGMATISM
处在变革中的医用金属材料
期刊论文
金属学报, 2017
郑玉峰
;
吴远浩
收藏
  |  
浏览/下载:116/0
  |  
提交时间:2017/12/03
医用金属材料
可降解金属
大块非晶合金
纳米晶金属
3D打印
功能化
复合化
智能化
metallic biomaterial
biodegradable metal
bulk metallic glass
nanocrystalline metal
3D printing
biofunctionalization
composite
intelligence
GLASS-FORMING ABILITY
IN-VITRO DEGRADATION
FE-BASED ALLOYS
ZN-CA ALLOY
NANOGRAINED/ULTRAFINE-GRAINED STRUCTURES
SPINAL FIXATION APPLICATIONS
CHANGEABLE YOUNGS MODULUS
SIMULATED BODY-FLUIDS
MELTING DEPOSITED TI-5AL-5MO-5V-1CR-1FE
BIODEGRADABLE IMPLANT MATERIALS
Petrogenesis of the Guangtoushan granitoid suite, central China: Implications for Early Mesozoic geodynamic evolution of the Qinling Orogenic Belt
期刊论文
GONDWANA RESEARCH, 2016
Deng, Zhengbin
;
Liu, Shuwen
;
Zhang, Wanyi
;
Hu, Fangyang
;
Li, Qiugen
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
South Qinling Tectonic Belt
Guangtoushan granitoid suite
Zircon U-Pb-Hf isotopes
Petrogenesis
Geodynamic evolution
ZIRCON U-PB
UNDERPLATED BASALTIC CRUST
HF ISOTOPIC CONSTRAINTS
YANGTZE SOUTH CHINA
COLLECTOR ICP-MS
TECTONIC EVOLUTION
CONTINENTAL-CRUST
SLAB BREAKOFF
LU-HF
SUBDUCTION ZONES
Smoothed dissipative particle dynamics model for mesoscopic multiphase flows in the presence of thermal fluctuations
其他
2016-01-01
Lei, Huan
;
Baker, Nathan A.
;
Wu, Lei
;
Schenter, Gregory K.
;
Mundy, Christopher J.
;
Tartakovsky, Alexandre M.
收藏
  |  
浏览/下载:108/0
  |  
提交时间:2017/12/04
SURFACE-TENSION
STATISTICAL-MECHANICS
HYDRODYNAMICS MODEL
GENERAL FORMALISM
COMPLEX FLUIDS
LENGTH SCALES
SIMULATION
THERMODYNAMICS
INTERFACES
SPH
Structured Knowledge Tracing Models for Student Assessment on Coursera
其他
2016-01-01
Wang, Zhuo
;
Zhu, Jile
;
Li, Xiang
;
Hu, Zhiting
;
Zhang, Ming
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Knowledge Tracing
MOOCs
Student Assessment
Student Modeling
Hierarchical and Temporal Knowledge Tracing
MOOCs
Student Assessment
Student Modeling
Hierarchical and Temporal
New Formulas of Shear Strain during Equal-channel Angular Pressing Process with Consideration of Influences of Velocity and Motion Trajectory
期刊论文
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2016
Zhang, Dian-tao
;
Li, Zhen
;
Tong, Yun-xiang
;
Zheng, Yu-feng
;
Li, Li
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2017/12/03
equal-channel angular pressing
finite element method
shear strain
velocity
motion trajectory
SEVERE PLASTIC-DEFORMATION
FINITE-ELEMENT-METHOD
GRAINED MATERIALS
ALUMINUM-ALLOYS
BACK PRESSURE
ECAP
EXTRUSION
DIE
BEHAVIOR
SIMULATION
Luminescence dating of glacial deposits near the eastern Himalayan syntaxis using different grain-size fractions
期刊论文
QUATERNARY SCIENCE REVIEWS, 2015
Hu, Gang
;
Yi, Chao-Lu
;
Zhang, Jia-Fu
;
Liu, Jin-Hua
;
Jiang, Tao
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
Luminescence dating
Partial bleaching
Different grain size fractions
Glacial sediments
Southeastern Tibet
OPTICALLY STIMULATED LUMINESCENCE
SOUTHEASTERN TIBETAN PLATEAU
LATE QUATERNARY GLACIATIONS
REGENERATIVE-DOSE PROTOCOL
POLYMINERAL FINE GRAINS
LATE PLEISTOCENE
OSL SIGNALS
ICE-AGE
GLACIOFLUVIAL SEDIMENTS
NORTHERN PAKISTAN
Chronological studies of Shuidonggou (SDG) Locality 1 and their significance for archaeology
期刊论文
quaternary international, 2014
Nian, Xiaomei
;
Gao, Xing
;
Zhou, Liping
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/11
Shuidonggou (SDG)
Paleolithic
Archaeological site
OSL dating
REGENERATIVE-DOSE PROTOCOL
NORTH CHINA
STONE-AGE
MIDDLE
AUSTRALIA
ORIGINS
AFRICA
QUARTZ
DATES
SITE
Sampling saddle points on a free energy surface
其他
2014-01-01
Samanta, Amit
;
Chen, Ming
;
Yu, Tang-Qing
;
Tuckerman, Mark
;
Weinan, E.
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/11
MOLECULAR-DYNAMICS
POTENTIAL SURFACES
PATHWAYS
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