A5045457580- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- Virtual Reality Applications and Impacts
- Advanced Optical Imaging Technologies
- Microstructure and mechanical properties
- Intermetallics and Advanced Alloy Properties
- Magnesium Alloys: Properties and Applications
- High Temperature Alloys and Creep
- Advanced materials and composites
- Visual perception and processing mechanisms
- Fatigue and fracture mechanics
- Concrete and Cement Materials Research
- Metallurgy and Material Forming
- Interactive and Immersive Displays
- Tactile and Sensory Interactions
- MXene and MAX Phase Materials
- Metal and Thin Film Mechanics
- Image and Video Stabilization
- Fire effects on concrete materials
- Hydrogen Storage and Materials
- Advanced ceramic materials synthesis
- Action Observation and Synchronization
- Electron and X-Ray Spectroscopy Techniques
- Sport Psychology and Performance
- Microstructure and Mechanical Properties of Steels
Toyohashi University of Technology
2020-2024
Tohoku University
2012-2023
Kobelco Eco-Solutions (Japan)
2023
Tokyo University of Agriculture and Technology
2011-2022
Shibaura Institute of Technology
2019-2020
Tokyo Institute of Technology
2017-2020
University of Toyama
2006-2015
Hokuriku Electric Power Company (Japan)
2015
Materials Processing (United States)
2015
Université de Rouen Normandie
2015
A lenticular-type super multi-view (SMV) display normally requires an ultra high-resolution flat-panel display. To reduce this resolution requirement, two or more views are generated around each eye with interval smaller than the pupil diameter. Cylindrical lenses constituting a lenticular lens project group of pixels to generate viewing zones. Pixel groups generating left and right zones through same cylindrical partitioned separate The pixel for different interlaced horizontally. prototype...
Walking is a fundamental physical activity in humans. Various virtual walking systems have been developed using treadmill or leg-support devices. Using optic flow, foot vibrations simulating footsteps, and avatar, we propose system that does not require limb action for seated users. We aim to investigate whether full-body hands-and-feet-only avatar with either the first-person (experiment 1) third-person 2) perspective can convey sensation of environment through flows vibrations. The viewing...
Coarse, rod-shaped precipitates growing along ⟨100⟩Al directions in an Al–1.0 wt% Mg2Si alloy with 0.5 Ag additions were investigated by high-resolution high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM). All had complex structures, being composed of domains separated anti-phase resembling boundaries. The consist a modified hexagonal β′-type structure that contains considerable amount Ag. Based on HAADF-STEM images, average atomic model space group P-62 m...
The generation of full-parallax and 360-degree three-dimensional (3D) images on a table screen is proposed. proposed system comprises small array high-speed projectors rotating screen. Because the has lens function, large number viewpoints are generated circle when rotates. Thus, 3D having horizontal parallax generated. all located at different heights from screen, they generate heights. Therefore, plural aligned in vertical direction to provide parallax. A prototype display that employs...
In this work, the early stage of precipitation have been investigated in a Mg–2.9 at% Gd–0.8 Y by high angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) and resolution (HRTEM).At underaged condition, precipitates observed HRTEM were classified as follows; mono-layer, part β″, β′. By HAADF-STEM, zig-zag structure, small hexagonal network, β′ could be recognized. The "super hexagons" are first alloy. This referred to pre β″-phase, displays short range similar one...
Human locomotion is most naturally achieved through walking, which good for both mental and physical health. To provide a virtual walking experience to seated users, system utilizing foot vibrations simulated optical flow was developed. The current study sought augment this examine the effect of an avatar's cast shadow on cybersickness. omnidirectional movie animation were synchronized, with reflecting movement ground. Twenty participants exposed in six conditions (with/without no/short/long...
The metastable β′-phase that forms in an alloy with composition Al-1.0 mass% Mg2Si-0.5 Ag, over aged at 523 K, has been investigated by transmission electron microscopy (TEM) order to understand the effect of Ag-addition on crystal structure this phase. According results analyses selected area diffraction pattern, high resolution TEM (HRTEM), energy dispersive X-ray spectroscopy (EDS), elemental maps energy-filtered (EFTEM) and angle annular dark field scanning (HAADF-STEM), precipitate...
Abstract A conflict between accommodation and vergence is one possible cause of visual fatigue discomfort while viewing conventional three‐dimensional displays. Previous studies have proposed the super multi‐view (SMV) display technique to solve vergence–accommodation conflict, in which two or more parallax images enter pupil eye with highly directional rays. We simultaneously measured accommodative, vergence, pupillary responses SMV displays examine whether they can reduce conflict. For...
In this study, the increase in depth of field (DOF) eyes by super multi-view (SMV) displays was examined using a recently developed reduced-view SMV display that generates viewpoints with an interval 2.6 mm. Two different three-dimensional (3D) images were used for accommodation measurements; one contains sharp edges, and other various soft edges. We found DOF increased even latter 3D image. Moreover, image approximately equal to or less than former, depending on subjects' point focus.
Creep rupture strength of creep enhanced ferritic steels is often overestimated, and its evaluated value has been reduced repeatedly. In this paper, the cause overestimation discussed, T91 steel assessed with updated data. Effects residual Ni concentration on necessity F factor in are also discussed. Decrease activation energy Q for life long-term overestimation, since conventional time–temperature parameter (TTP) methods cannot deal change Q. Due to decrease Q, decreases as longer-term data...
The resolution redistribution (RR) technique can increase the horizontal viewing-zone angle and screen size of electronic holographic display. present study developed a zone plate method that would reduce hologram calculation time for RR technique. This enables an image displayed on spatial light modulator by performing additions plates, while previous required Fourier transform twice. derivation modeling are shown. In addition, look-up table approach was introduced further reduction in...
Abstract— The viewing freedom of the reduced‐view super multi‐view (SMV) display was analyzed. It found that there are separate multiple ranges in depth direction; thus, a technique selects an appropriate range to increase longitudinal has been developed. Pixels flat‐panel viewed by viewer's eyes through lenticular lens were determined from three‐dimensional (3‐D) positions eyes, which obtained using eye‐tracking system employed stereo camera. Parallax images corresponding 3‐D generated,...
Conventional time-temperature-parameter (TTP) methods often overestimate long-term rupture life of creep strength enhanced ferritic steels. Decrease in activation energy Q for is the cause overestimation, since TTP cannot deal with change Q. Creep data a heat Gr.122 steel (up to 26,200 h) were divided into several sets so that was unique each set. Then method applied set prediction. This procedure multiregion analysis data. The predicted lives have been reported literature. Long-term 51,400...
Abstract A methodology is developed for evaluating its creep rupture life from analysis of an on-going curve with the aid Ω equation. The method applied to curves grade 91 steel their lives. Quick decrease in strength has been reported recently long-term steel. quick discussed by using lives evaluated. confirmed present study time range longer than 3 x 104 h at 600°C.