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科研机构
北京大学 [92]
内容类型
期刊论文 [67]
其他 [23]
会议论文 [2]
发表日期
2017 [10]
2016 [20]
2015 [13]
2014 [9]
2013 [5]
2012 [7]
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专题:北京大学
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基于照度调整的矿井非均匀照度视频图像增强算法
期刊论文
煤炭学报, 2017
智宁
;
毛善君
;
李梅
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
非均匀照度
多尺度引导滤波
亮度调整
细节增强参数
照度增强系数
non-uniform illumination
multiscale guided filter
illumination adjustment
detail enhancement coefficient
the illumination enhancement coefficient
Toward Bi3+ Red Luminescence with No Visible Reabsorption through Manageable Energy Interaction and Crystal Defect Modulation in Single Bi3+-Doped ZnWO4 Crystal
期刊论文
CHEMISTRY OF MATERIALS, 2017
Han, Jin
;
Li, Lejing
;
Peng, Mingying
;
Huang, Bolong
;
Pan, Fengjuan
;
Kang, Fengwen
;
Li, Liyi
;
Wang, Jing
;
Lei, Bingfu
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
PARTICLE-DIAGNOSIS APPROACH
DENSITY-FUNCTIONAL THEORY
LIGHT-EMITTING-DIODES
CONVERTED WHITE LEDS
TUNABLE EMISSION
PHOSPHOR
COLOR
BAND
MN2+
EU2+
Optical intensity-driven reversible photonic bandgaps in self-organized helical superstructures with handedness inversion
期刊论文
JOURNAL OF MATERIALS CHEMISTRY C, 2017
Sun, Jian
;
Yu, Li
;
Wang, Ling
;
Li, Chenyue
;
Yang, Zhou
;
He, Wanli
;
Zhang, Cuihong
;
Zhang, Lanying
;
Xiao, Jiumei
;
Yuan, Xiao
;
Li, Fasheng
;
Yang, Huai
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
CHOLESTERIC LIQUID-CRYSTALS
CHIRAL MOLECULAR SWITCHES
STRUCTURAL MODIFICATION
REFLECTIVE POLARIZERS
POLYMER NETWORKS
ROTARY MOTION
LIGHT
COMPOSITES
COLOR
BANDWIDTH
Unconventional High-Performance Laser Protection System Based on Dichroic Dye-Doped Cholesteric Liquid Crystals
期刊论文
SCIENTIFIC REPORTS, 2017
Zhang, Wanshu
;
Zhang, Lanying
;
Liang, Xiao
;
Zhou, Le
;
Xiao, Jiumei
;
Yu, Li
;
Li, Fasheng
;
Cao, Hui
;
Li, Kexuan
;
Yang, Zhou
;
Yang, Huai
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
REFLECTIVE POLARIZERS
SELECTIVE REFLECTION
UV STABILITY
FILTER
LIGHT
FABRICATION
COMPOSITES
RADIATION
BANDWIDTH
DESIGN
Broadband reflection in polymer stabilized cholesteric liquid crystal films with stepwise photo-polymerization
期刊论文
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2017
Duan, Man-yu
;
Cao, Hui
;
Wu, Yong
;
Li, Er-li
;
Wang, Hui-hui
;
Wang, Dong
;
Yang, Zhou
;
He, Wan-li
;
Yang, Huai
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
PITCH GRADIENT
OPTICAL-PROPERTIES
LIGHT-REFLECTION
POLARIZERS
NETWORK
ELASTOMERS
GELS
Liquid Crystal Elastomer Actuators from Anisotropic Porous Polymer Template
期刊论文
MACROMOLECULAR RAPID COMMUNICATIONS, 2017
Wang, Qian
;
Yu, Li
;
Yu, Meina
;
Zhao, Dongyu
;
Song, Ping
;
Chi, Hun
;
Guo, Lin
;
Yang, Huai
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
actuators
alignment
liquid crystal elastomers
polyvinylidene fluoride
porous films
FILM
NANOCOMPOSITES
REFLECTION
HYDROGELS
ALIGNMENT
DRIVEN
SHEETS
LIGHT
Ultrasonic detection based on polarization-dependent optical reflection
期刊论文
OPTICS LETTERS, 2017
Zhu, Xiaoyi
;
Huang, Zhiyu
;
Wang, Guohe
;
Li, Wenzhao
;
Zou, Da
;
Li, Changhui
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
PHOTOACOUSTIC TOMOGRAPHY
INTERFEROMETER
MICROSCOPY
WAVES
LIGHT
Polarization-dependent optical reflection ultrasonic detection
会议论文
Zhu, Xiaoyi
;
Huang, Zhiyu
;
Wang, Guohe
;
Li, Wenzhao
;
Li, Changhui
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Ultrasonic detection
polarization
optical reflection
photoacoustic
PHOTOACOUSTIC TOMOGRAPHY
LIGHT
Adaptable metasurface for dynamic anomalous reflection
期刊论文
APPLIED PHYSICS LETTERS, 2017
Yan, L. B.
;
Zhu, W. M.
;
Wu, P. C.
;
Cai, H.
;
Gu, D.
;
Chin, L. K.
;
Shen, Z. X.
;
Chong, P. H. J.
;
Yang, Z. C.
;
Ser, W.
;
Tsai, D. P.
;
Liu, A. Q.
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
LINEAR-POLARIZATION CONVERSION
BROAD-BAND
PLASMONIC METASURFACE
PHASE DISCONTINUITIES
LIGHT-PROPAGATION
VISIBLE-LIGHT
WAVE PLATE
EFFICIENCY
METAMATERIAL
GENERATION
Spin-Controlled Multiple Pencil Beams and Vortex Beams with Different Polarizations Generated by Pancharatnam-Berry Coding Metasurfaces
期刊论文
ACS APPLIED MATERIALS & INTERFACES, 2017
Zhang, Lei
;
Liu, Shuo
;
Li, Lianlin
;
Cui, Tie Jun
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2017/12/03
coding metasurface
Pancharatnam-Berry phase
anisotropy
vortex beam
circularly polarized waves
multiple beams
PHASE DISCONTINUITIES
LIGHT-PROPAGATION
TERAHERTZ WAVES
EFFICIENCY
METAMATERIALS
REFLECTION
SCATTERING
REFRACTION
DIFFUSION
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