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科研机构
北京大学 [42]
内容类型
期刊论文 [38]
其他 [3]
会议论文 [1]
发表日期
2017 [4]
2016 [9]
2015 [3]
2014 [2]
2013 [3]
2012 [4]
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专题:北京大学
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基于微型光电设备的典型靶标形状识别引导
期刊论文
兵工自动化, 2017
王洪
;
杜倩
;
晏磊
;
苗勇
;
柯子博
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
典型靶标
图像识别
微型光电设备
陀螺稳定
typical target
image recognition
miniature photoelectric device
gyro stabilization
Maximally dense random packings of cubes and cuboids via a novel inverse packing method
期刊论文
SOFT MATTER, 2017
Liu, Lufeng
;
Li, Zhuoran
;
Jiao, Yang
;
Li, Shuixiang
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
NONSPHERICAL PARTICLES
NANOCUBES
SPHEROCYLINDERS
SIMULATION
SPHERES
REALIZABILITY
ELLIPSOIDS
ORDER
SHAPE
Inverse Method of Centrifugal Pump Impeller Based on Proper Orthogonal Decomposition (POD) Method
期刊论文
CHINESE JOURNAL OF MECHANICAL ENGINEERING, 2017
Zhang, Ren-Hui
;
Guo, Rong
;
Yang, Jun-Hu
;
Luo, Jia-Qi
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Centrifugal impeller
Proper orthogonal decomposition
Inverse method
Snapshot sets
DESIGN METHOD
HYDRODYNAMIC-DESIGN
SECONDARY FLOWS
CFD
OPTIMIZATION
SUPPRESSION
VALIDATION
BLADES
Aerodynamic shape optimization of a transonic fan by an adjoint-response surface method
期刊论文
AEROSPACE SCIENCE AND TECHNOLOGY, 2017
Tang, Xiao
;
Luo, Jiaqi
;
Liu, Feng
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Aerodynamic design optimization
Adjoint method
Response surface
Compressor rotor
Transonic
AXIAL COMPRESSOR ROTOR
FLOW
PERFORMANCE
DESIGN
BLADE
SWEEP
Describing Urban Evolution with the Fractal Parameters Based on Area-Perimeter Allometry
期刊论文
DISCRETE DYNAMICS IN NATURE AND SOCIETY, 2016
Chen, Yanguang
;
Wang, Jiejing
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
SPATIOTEMPORAL EVOLUTION
CELLULAR-AUTOMATA
LAND-USE
DIMENSION
FORM
MORPHOLOGY
CITIES
GROWTH
DYNAMICS
SHAPE
Extraction and Reconstruction of Zebra Crossings from High Resolution Aerial Images
期刊论文
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION, 2016
Sun, Yanbiao
;
Zhang, Fan
;
Gao, Yunlong
;
Huang, Xianfeng
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
zebra crossing
GLCM feature
Gabor filter
Joint Boost classifier
parameterized model
geometric repeatability
reconstruction
GABOR FILTER
FEATURES
CLASSIFICATION
INFORMATION
MULTICLASS
JOINTBOOST
SYSTEM
FOREST
COLOR
A comparative study of the segmentation of weighted aggregation and multiresolution segmentation
期刊论文
GISCIENCE & REMOTE SENSING, 2016
Du, Shihong
;
Guo, Zhou
;
Wang, Wanyi
;
Guo, Luo
;
Nie, Juan
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Geographic object-based image analysis
multiresolution image segmentation
very-high-resolution images
segmentation by weighted aggregation
REMOTE-SENSING DATA
IMAGE SEGMENTATION
FEATURE-EXTRACTION
OBJECT
CLASSIFICATION
SCALE
EXAMPLE
FUSION
CUTS
Mixed [2:6] hetero-arm star polymers based on Janus POSS with precisely defined arm distribution
期刊论文
POLYMER CHEMISTRY, 2016
Shao, Yu
;
Yin, Hang
;
Wang, Xiao-Man
;
Han, Shuai-Yuan
;
Yan, Xuesheng
;
Xu, Jun
;
He, Jinlin
;
Ni, Peihong
;
Zhang, Wen-Bin
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
OLIGOMERIC SILSESQUIOXANE POSS
ANIONIC-POLYMERIZATION
NANOBUILDING BLOCKS
SHAPE AMPHIPHILES
MOLECULAR DESIGN
GIANT MOLECULES
CLICK CHEMISTRY
NANOPARTICLES
MICELLES
DELIVERY
Optimization on Layout Strategy of Gate-Grounded NMOS for On-Chip ESD Protection in a 65-nm CMOS Process
期刊论文
IEICE TRANSACTIONS ON ELECTRONICS, 2016
Lu, Guangyi
;
Wang, Yuan
;
Zhang, Xing
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
electrostatic discharge (ESD)
gate-grounded NMOS (ggNMOS)
substrate-pickup stripes
transmission-line-pulsing (TLP) test
DEVICES
PICKUP
TRANSISTORS
TECHNOLOGY
ROBUSTNESS
IMPACT
A unified free-form representation applied to the shape optimization of the hohlraum with octahedral 6 laser entrance holes
期刊论文
PHYSICS OF PLASMAS, 2016
Jiang, Shaoen
;
Huang, Yunbao
;
Jing, Longfei
;
Li, Haiyan
;
Huang, Tianxuan
;
Ding, Yongkun
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
INERTIAL CONFINEMENT FUSION
NATIONAL-IGNITION-FACILITY
TETRAHEDRAL HOHLRAUMS
PHYSICS BASIS
IMPLOSIONS
SYMMETRY
OMEGA
GAIN
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