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"University of Tokyo" Search Results: 62
Title / Author(s) / Keywords PublicationDate
2019-03 iCT 2019 Algorithms & Reconstruction
Wed 16:20 Auditorium
Accurate surface extraction on CT volume using gradients obtained by differentiating FDK formula
Y. Nagai112, Y. Ohtake215, H. Suzuki215
1Tokyo Metropolitan University14, Tokyo, Japan
2RCAST; University of Tokyo62, Tokyo, Japan
Radiographic Testing (RT), surface extraction, CT volume, maxima of gradient norm, analytical differentials, FDK

 
iCT 2019
Session: Algorithms & Reconstruction
Wed 16:20 Auditorium
2019-03
2019-03 iCT 2019 NDT, Materials & Manufacturing
Fri 13:50 Auditorium
Thicknes Measurement of Metal Plate Using CT Projection Images and Nominal Shape
T. Ito1, Y. Ohtake115, Y. Nagai212, H. Suzuki115
1Department of Precision Engineering; University of Tokyo62, Tokyo, Japan
2Tokyo Metropolitan University14, Tokyo, Japan
X-ray CT, Projection Images, Actual Nominal Comparison, Dimensional Measurement

 
iCT 2019
Session: NDT, Materials & Manufacturing
Fri 13:50 Auditorium
2019-03
2019-01 EWGAE 2018 Corrosion
AE Monitoring and Three-dimensional Observation of Stress Corrosion Cracking from Corrosion Pits
K. Wu1, K. Ito28, I. Shinozaki3, M. Enoki120
1Department of Materials Engineering; University of Tokyo62, Tokyo, Japan
2Department of Materials Engineering; National Institute for Materials Science (NIMS)8, Tsukuba, Japan
3IHI Corporation14, Yokohama, Japan
Acoustic Emission (AE), stress corrosion cracking, Clustering, X-ray CT, corrosion pit

 
EWGAE 2018
Session: Corrosion
2019-01
2019-01 EWGAE 2018 Material Characterisation
Analysis of Kinking and Twinning Behavior in Mg Alloys By AE Clustering Method
M. Enoki20, K. Tamura, T. Shiraiwa3
Department of Materials Engineering; University of Tokyo62, Tokyo, Japan
Acoustic Emission (AE)

 
EWGAE 2018
Session: Material Characterisation
2019-01
2019-01 EWGAE 2018 Signal Processing-Equipment and Software
Continuous Recording and Wireless Transmission of AE Waveforms by Battery Powered Sensor Nodes
K. Ito18, M. Enoki220
1National Institute for Materials Science (NIMS)8, Tsukuba, Japan
2University of Tokyo62, Tokyo, Japan
Acoustic Emission (AE)

 
EWGAE 2018
Session: Signal Processing-Equipment and Software
2019-01
2018-12 SHM-NDT 2018 Structural Health Monitoring
An Analysis of Ultrasonic Wave Generated by Oblique Incidence of Laser
O. Saito12, N. Higuchi2, Y. Okabe19, E. Sen1
1Institute of Industrial Science; University of Tokyo62, Tokyo, Japan
2Research & Innovation center; Mitsubishi Heavy Industries4, Minato-ku, Nagoya, Japan
Laser ultrasonics, Oblique incidence, Numerical simulation

 
SHM-NDT 2018
Session: Structural Health Monitoring
2018-12
2018-12 SHM-NDT 2018 Structural Health Monitoring
Tower Tilt Monitoring with Wireless Two-Way Interferometry (WI-WI)
S. Yasuda12, N. Shiga12, B. Panta2, K. Fukunaga17
1National Institute of Information and Communications Technology (NICT)7, Tokyo, Japan
2Earthquake Research Institute; University of Tokyo62, Tokyo, Japan
Synchronization, Nondestructive testing, Wireless communication, Interferometry

 
SHM-NDT 2018
Session: Structural Health Monitoring
2018-12
2018-11 EWSHM 2018 Lamb waves
Numerical Analysis of Lamb Wave Propagation in a Periodically Stiffened CFRP Plate for Impact Damage Detection
P. Deng, O. Saito2, Y. Okabe9
Institute of Industrial Science; University of Tokyo62, Tokyo, Japan
Aerospace, Composite materials, Impact, Ultrasonics

 
EWSHM 2018
Session: Lamb waves
2018-11
2018-11 EWSHM 2018 Machine learning
Deep Sensing Approach to Single-Sensor Bridge Weighing in Motion
T. Kawakatsu1, K. Aihara2, A. Takasu2, J. Adachi2
1University of Tokyo62, Tokyo, Japan
2National Institute of Informatics (NII), Tokyo, Japan
Civil engineering, Data processing, Detection systems, Probability of detection, Sensors, Strain

 
EWSHM 2018
Session: Machine learning
2018-11
2018-11 EWSHM 2018 Optical fibres
High-temperature Ultrasonic/AE sensing System Using Fiber-optic Bragg Gratings
F. Yu5, Y. Okabe9
Institute of Industrial Science; University of Tokyo62, Tokyo, Japan
Acoustic emission, Composite materials, High temperature, Sensors, Ultrasonics

 
EWSHM 2018
Session: Optical fibres
2018-11
2018-03 APCNDT 2017 Computed Tomography 1
Multi-pass CT Scanning with Orientation Selection and Volume Integration for Metal Artifact Reduction
K. Kobayashi, Y. Ohtake15, Y. Nagai12, H. Suzuki15
University of Tokyo62, Tokyo, Japan
Radiographic Testing (RT), Modeling and Simulation, Multi-pass CT Scan, Metal Artifact Reduction, Cone-beam X-rays, X-ray Computed Tomography (CT)

 
APCNDT 2017
Session: Computed Tomography 1
2018-03
2018-03 APCNDT 2017 Radiography 2
Extraction of Woven Strip Structures from its X-ray CT Volume
Y. Nagai12, Y. Ohtake15, H. Suzuki15
Department of Precision Engineering; University of Tokyo62, Tokyo, Japan
Radiographic Testing (RT), Modeling and Simulation, Woven structure, Differentials, X-ray CT

 
APCNDT 2017
Session: Radiography 2
2018-03
2018-02 iCT 2018 Algorithms, image processing and visualisation
Detection of Narrow Gaps Using Hessian Eigenvalues for Shape Segmentation on CT Volume of Assembled Parts
S. Watanabe, Y. Ohtake15, Y. Nagai12, H. Suzuki15
School of Engineering; University of Tokyo62, Tokyo, Japan
CT volume segmentation, Gap detection, Shape extraction of assembled parts

 
iCT 2018
Session: Algorithms, image processing and visualisation
2018-02
2018-02 AeroNDT 2017
Modeling of contact acoustic nonlinearity for evaluating fatigue crack in metal plate
R. Wang1, Q. Wu24, F. Yu25, Y. Okabe29, K. Xiong13
1State Key Laboratory of Mechanics and Control of Mechanical Structures; Nanjing University of Aeronautics and Astronautics (NUAA)52, Nanjing, China
2Institute of Industrial Science; University of Tokyo62, Tokyo, Japan
Fatigue crack, Nonlinear ultrasonics, Nondestructive testing, Contact acoustic nonlinearity

 
AeroNDT 2017
2018-02
2017-10 Journal-AE Volume 34, 2016
High-precision source location of AE event using automatic error correction of signal rising time
K. Ito8, M. Enoki20
Department of Materials Engineering; University of Tokyo62, Tokyo, Japan

 
Journal-AE
Session: Volume 34, 2016
2017-10
Numerical analysis of laser ultrasound propagation excited by mid IR light source in CFRP
K. Oguchi1, M. Enoki120, H. Yamawaki23, H. Hatano2, M. Watanabe2
1Department of Materials Engineering; University of Tokyo62, Tokyo, Japan
2Optical & Electronic Materials Unit; National Institute for Materials Science (NIMS)8, Tsukuba, Japan
LUT, CFRP, wave propagation analysis, FEM, optical depth, mid-IR laser

 
NDT.net Journal
2017-02
2016-11 EWGAE 2016 Advanced Composites
Damage Type Identication Based on Acoustic Emission Detection Using a Fiber-Optic Sensor in Carbon Fiber Reinforced Plasitc Laminates
F. Yu15, Y. Okabe19, Q. Wu14, N. Shigeta2
1Institute of Industrial Science; University of Tokyo62, Tokyo, Japan
2Institute of Industrial Science; IHI Corporation, Tokyo, Israel
Optical Fiber Sensor, Composite Material, Guided Wave

 
EWGAE 2016
Session: Advanced Composites
2016-11
2016-11 EWGAE 2016 Devices, Sensors and Transducers
High Sensitivity Detection of AE Events in Noisy Environment using Stream Recording and Parallel Computation
K. Ito8, M. Enoki20
Department of Materials Engineering; University of Tokyo62, Tokyo, Japan
Signal Processing, Continuous Waveform, Noise Filtering, Multiple Thresholds, Parallel Computing

 
EWGAE 2016
Session: Devices, Sensors and Transducers
2016-11
2016-11 EWGAE 2016 Materials Characterization
Evaluation of Deformation Behavior in LPSO-Magnesium Alloys Byae Clusteringand Inverse Analysis
M. Enoki20, Y. Muto, T. Shiraiwa3
Department of Materials Engineering; University of Tokyo62, Tokyo, Japan
Kink deformation, LPSO-Mg alloys, Clustering, Inverse analysis

 
EWGAE 2016
Session: Materials Characterization
2016-11
2016-07 WCNDT 2016 Computed Tomography
CT Reconstruction on Unstructured Mesh for Multi-material Object
Y. Nagai12, Y. Ohtake15, H. Suzuki15
School of Engineering; University of Tokyo62, Tokyo, Japan
Other Methods, Computed Tomography, Tetrahedral mesh, Mesh generation

 
WCNDT 2016
Session: Computed Tomography
2016-07
 
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