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科研机构
北京大学 [28]
内容类型
期刊论文 [25]
其他 [3]
发表日期
2014 [28]
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浏览/检索结果:
共28条,第1-10条
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发表日期:2014
专题:北京大学
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Analysis and Interpretation of Longitudinal Waves in Periodic Multiphase Rods Using the Method of Reverberation-Ray Matrix Combined With the Floquet-Bloch Theorem
期刊论文
journal of vibration and acoustics transactions of the asme, 2014
Guo, Y. Q.
;
Fang, D. N.
收藏
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浏览/下载:2/0
  |  
提交时间:2015/11/13
longitudinal waves
periodic multiphase rods
method of reverberation-ray matrix
Floquet-Bloch theorem
dispersion curves
frequency bands
BAND-STRUCTURE
DISPERSIVE ELASTODYNAMICS
PHONONIC CRYSTALS
PROPAGATION
VIBRATION
SYSTEMS
GAP
OPTIMIZATION
TRUSSES
DESIGN
三维Gabor滤波器与支持向量机的高光谱遥感图像分类
期刊论文
光谱学与光谱分析, 2014
冯逍
;
肖鹏峰
;
李琦
;
刘小喜
;
吴小翠
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/10/23
高光谱遥感
图像分类
三维Gabor滤波器
波段选择
支持向量机
Hyperspectral remote sensing
Image classification
Three-dimensional Gabor filter
Band selection
Support vector machines
A multi-band approach to unsupervised scale parameter selection for multi-scale image segmentation
期刊论文
isprs journal of photogrammetry and remote sensing, 2014
Yang, Jian
;
Li, Peijun
;
He, Yuhong
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/11
Object based image analysis
Multi-scale segmentation
Appropriate scale parameter selection
Multi-band
Spectral angle
Segmentation evaluation
CLASSIFICATION
MULTIRESOLUTION
ALGORITHMS
EXTRACTION
ACCURACY
SURFACES
TEXTURE
OBJECTS
SYSTEM
TOOL
Interaction of sodium and potassium ions with PEO-PPO copolymer investigated by FTIR, Raman and NMR
期刊论文
vibrational spectroscopy, 2014
Li, Xiaopei
;
Huang, Kun
;
Xu, Yizhuang
;
Liu, Huizhou
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/10
PEO-PPO copolymer
Self-assembly
Interactions
Cations
Vibrational band shift
DIFFERENTIAL SCANNING CALORIMETRY
OXIDE) TRIBLOCK COPOLYMERS
BLOCK-COPOLYMER
AQUEOUS-SOLUTIONS
POLY(ETHYLENE OXIDE)
PHASE-SEPARATION
AGGREGATION BEHAVIOR
HOFMEISTER SERIES
MICELLIZATION
SALT
Theoretical and Experimental Demonstrations of a Dual-Band Metamaterial Absorber at Mid-Infrared
期刊论文
ieee photonics technology letters, 2014
Ma, Wei
;
Wen, Yongzheng
;
Yu, Xiaomei
收藏
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浏览/下载:1/0
  |  
提交时间:2015/11/10
Metamaterials
dual band absorber
infrared
interference theory
resonance
BROAD-BAND
ARRAY
Envelope Level Crossing Rate and Average Fade Duration of Nonisotropic Vehicle-to-Vehicle Ricean Fading Channels
期刊论文
ieee transactions on intelligent transportation systems, 2014
Cheng, Xiang
;
Wang, Cheng-Xiang
;
Ai, Bo
;
Aggoune, Hadi
收藏
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浏览/下载:3/0
  |  
提交时间:2015/11/10
Average fade duration (AFD)
level crossing rate (LCR)
nonisotropic scattering environments
Ricean fading
vehicle-to-vehicle (V2V) channels
MOBILE CHANNELS
STATISTICAL PROPERTIES
MODEL
BAND
SIMULATION
TRANSMISSION
SPECTRUM
W波段三次谐波回旋振荡管的模拟与设计(英文)
期刊论文
红外与毫米波学报, 2014
史少辉
;
刘濮鲲
;
杜朝海
;
徐寿喜
;
耿志辉
;
李铮迪
;
王虎
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2015/11/11
回旋管
振荡器
W波段
三次谐波
gyrotron
oscillator
W-band
third-harmonic
An analytic model for gate-all-around silicon nanowire tunneling field effect transistors
期刊论文
chinese physics b, 2014
Liu Ying
;
He Jin
;
Chan Mansun
;
Du Cai-Xia
;
Ye Yun
;
Zhao Wei
;
Wu Wen
;
Deng Wan-Ling
;
Wang Wen-Ping
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/11
gate-all-round nanowire tunneling field effect transistor
band to band tunneling
analytic model
THRESHOLD VOLTAGE
MOSFET
FETS
Electronic Structure and Band Alignment at an Epitaxial Spinel/Perovskite Heterojunction
期刊论文
acs applied materials interfaces, 2014
Qiao, Liang
;
Li, Wei
;
Xiao, Haiyan
;
Meyer, Harry M.
;
Liang, Xuelei
;
Nguyen, N. V.
;
Weber, William J.
;
Biegalski, Michael D.
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/11
spinel/perovskite heterojunction
electronic structure
band alignment
photoemission
RAY PHOTOEMISSION SPECTRA
THIN-FILMS
PRECISE DETERMINATION
COBALT OXIDES
CORE-LEVEL
SRTIO3
CO3O4
INTERFACE
SURFACES
OFFSETS
Single-Layer Dual-Band Reflectarray With Single Linear Polarization
期刊论文
ieee天线与传播汇刊, 2014
Qu, Shi-Wei
;
Chen, Qing-Yong
;
Xia, Ming-Yao
;
Zhang, Xiu Yin
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/11
Dual-band reflectarray
identical polarization
mutual coupling
single layer
BROAD-BAND
LOOP ELEMENTS
VARIABLE SIZE
PATCHES
DESIGN
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