- Electron and X-Ray Spectroscopy Techniques
- Advanced Chemical Physics Studies
- Surface and Thin Film Phenomena
- Catalysis for Biomass Conversion
- Advanced Thermodynamic Systems and Engines
- Catalysis and Hydrodesulfurization Studies
- Refrigeration and Air Conditioning Technologies
- Rare-earth and actinide compounds
- Terahertz technology and applications
- Chemical Synthesis and Reactions
- Magnetic Properties and Applications
- Biofuel production and bioconversion
- Spectroscopy and Quantum Chemical Studies
- Semiconductor materials and interfaces
- Catalysis and Oxidation Reactions
- High Temperature Alloys and Creep
- Catalytic Processes in Materials Science
- Crystal Structures and Properties
- Advanced Battery Technologies Research
- Mesoporous Materials and Catalysis
- Heat Transfer and Optimization
- Electric Motor Design and Analysis
- Gear and Bearing Dynamics Analysis
- Adhesion, Friction, and Surface Interactions
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
National Institute of Technology, Tomakomai College
2024-2025
Hokkaido University
2019-2025
Sanyo (Japan)
2006
The University of Tokyo
2003
Mitsubishi Electric (Japan)
1992-2002
Alongside TiO2, Magneli-phase titanium suboxide having the composition of TinO2n–1 is a kind attractive functional materials composed titanium. However, there still remain problems to be overcome in synthesis suboxide; existing methods require high temperature typically over 1000 °C and/or postsynthesis purification. This study presents novel approach nanoparticles through solid-phase reaction TiO2 with TiH2. Crystal phases were easily controlled by changing TiO2/TiH2 molar ratios TiO2–TiH2...
Abstract White etching area (WEA) is widely known as a microstructural change caused by rolling contact fatigue of bearing. It has been reported that early flaking accompanied the WEA occurred in such bearings those for automotive alternators, and effective measures have demanded. The type so far studied detail, particularly butterfly, which was metallographically characterized follows: First, coexists with microcracks, initiated nonmetallic inclusions extended at angle 45 deg to raceway....
Fly ash is a chemically promising material composed of several metal oxides, including SiO2, Al2O3, MgO, and Fe2O3. However, its chemical properties have not been successfully exploited in catalysis applications. One the reasons for this that effective surface area fly extremely small because vitrification proceeds through combustion furnace under high-temperature conditions. In study, pozzolanic reaction was applied to increase improve performance as solid base catalyst. Microcrystals...