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科研机构
北京大学 [30]
内容类型
期刊论文 [25]
其他 [4]
会议论文 [1]
发表日期
2017 [3]
2016 [1]
2015 [4]
2014 [5]
2013 [5]
2012 [2]
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专题:北京大学
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Graphene nanosheets-filled epoxy composites prepared by a fast dispersion method
期刊论文
JOURNAL OF APPLIED POLYMER SCIENCE, 2017
Li, An
;
Zhang, Cong
;
Zhang, Yang-Fei
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
composites
graphene and fullerenes
mechanical properties
morphology
nanotubes
thermal properties
MECHANICAL-PROPERTIES
THERMAL-PROPERTIES
POLYMER COMPOSITES
OXIDE
STABILITY
FUNCTIONALIZATION
FABRICATION
RESIN
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
All-in-one low-intensity pulsed ultrasound stimulation system using piezoelectric micromachined ultrasonic transducer (pMUT) arrays for targeted cell stimulation
期刊论文
BIOMEDICAL MICRODEVICES, 2017
Lee, Wonjun
;
Yoo, Seungjun
;
Jung, Joontaek
;
Kang, Woojin
;
Wang, Wei
;
Moon, Cheil
;
Choi, Hongsoo
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Ultrasonic transducer
Cell stimulation system
pMUT
Proliferation
NERVE GROWTH-FACTOR
TRANSCRANIAL MAGNETIC STIMULATION
LOW-FREQUENCY ULTRASOUND
ELECTRICAL-STIMULATION
CULTURE TEMPERATURE
RAT CHONDROCYTES
BRAIN-FUNCTION
PC12 CELLS
PROLIFERATION
DIFFERENTIATION
Robust Precise Time Difference Estimation Based on Digital Zero-Crossing Detection Algorithm
期刊论文
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2016
Chen, Zhipeng
;
Li, Zhaohui
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/04
Digital zero-crossing detection
signal reconstruction
time difference estimation
time interval
ultrasonic flow measurement
SAW FILTER EXCITATION
DELAY
CONVERTER
SYSTEMS
Comparison imaging effect of acoustic radiation force excitation in ultrasound
其他
2015-01-01
Guo, Dequan
;
Yin, Hao
;
Liu, Richen
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Comparison imaging effect of acoustic radiation force excitation in ultrasound
其他
2015-01-01
Guo, Dequan
;
Yin, Hao
;
Liu, Richen
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Ultrasonic
point spread function
elastography
excitation
acoustic radiation force
VIBRO-ACOUSTOGRAPHY
ELASTICITY
TISSUES
A finger-like hardness tester based on the contact electromechanical impedance of a piezoelectric bimorph cantilever
期刊论文
REVIEW OF SCIENTIFIC INSTRUMENTS, 2015
Fu, Ji
;
Li, Faxin
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
ATOMIC-FORCE MICROSCOPE
ELASTIC-MODULUS
CIRCUIT
INDENTATION
A Two-Layer Linear Piezoelectric Micromotor
期刊论文
ieee transactions on ultrasonics ferroelectrics and frequency control, 2015
Li, Xiaotian
;
Ci, Penghong
;
Liu, Guoxi
;
Dong, Shuxiang
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2015/11/10
NON-AXISYMMETRICAL MODE
ULTRASONIC MOTOR
STEPPER MOTOR
VIBRATION
DIAMETER
ACTUATOR
SIZE
MM
A Square-Plate Piezoelectric Linear Motor Operating in Two Orthogonal and Isomorphic Face-Diagonal-Bending Modes
期刊论文
ieee transactions on ultrasonics ferroelectrics and frequency control, 2014
Ci, Penghong
;
Chen, Zhijiang
;
Liu, Guoxi
;
Dong, Shuxiang
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2015/11/13
ULTRASONIC MOTORS
DESIGN
Bi-direction quasi-travelling wave piezoelectric rotary motor with single vibrator
期刊论文
materials research innovations, 2014
Xing, Z.
;
He, B.
;
Li, R.
;
Dong, S.
;
Gao, G.
;
Feng, K.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2015/11/16
Piezoelectric motor
Single vibrator
Bidirectional rotation
Degenerated modes
PZT THIN-FILM
5.0 MM LONG
ULTRASONIC MOTOR
STATOR TRANSDUCER
DIAMETER
MICROMOTOR
CYLINDER
TUBE
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