A5101949477- Advancements in Solid Oxide Fuel Cells
- Electrocatalysts for Energy Conversion
- Magnetic and transport properties of perovskites and related materials
- Advanced Photocatalysis Techniques
- Innovative concrete reinforcement materials
- Powder Metallurgy Techniques and Materials
- Concrete and Cement Materials Research
- Concrete Properties and Behavior
- Fuel Cells and Related Materials
- Injection Molding Process and Properties
- Shape Memory Alloy Transformations
- X-ray Diffraction in Crystallography
- Non-Destructive Testing Techniques
- Drug Solubulity and Delivery Systems
- Semiconductor materials and devices
- Granular flow and fluidized beds
- Microwave Dielectric Ceramics Synthesis
- Aluminum Alloy Microstructure Properties
- Asthma and respiratory diseases
- Membrane Separation Technologies
- Power Transformer Diagnostics and Insulation
- Acoustic Wave Resonator Technologies
- Solidification and crystal growth phenomena
- Crystallization and Solubility Studies
- Thermography and Photoacoustic Techniques
Tohoku University
2017-2024
Osaka University
2008-2024
Hoshi University
2019-2024
Tokai University
2023
Ebara (Japan)
2019-2023
Hokkaido University
2020
Nihon University
2015-2020
Engineering (Italy)
2019
Niigata University
2016-2019
Faculty (United Kingdom)
2019
A new transparent iridium oxide (IrOx) film on fluorine-doped tin (FTO) electrodes were achieved from a homogeneous precursor complex solution by employing facile spin-coating technique. The composition of the nanostructure and crystallinity IrOx is tunable simple annealing treatment compact layer, which responsible for their significantly different electrocatalytic performances water oxidation. Transmission electron microscopy (TEM) observations showed uniformly dispersed small...
Dependence of crystal symmetry, electrical conductivity, chemical state Fe and optical property LnFeO3 (Ln: La, Pr, Nd, Sm) on kinds Ln3+ was investigated. All the showed orthorhombic structure, with which order high symmetry LaFeO3 > PrFeO3 NdFeO3 SmFeO3. Using tolerance factor, successfully explained. The conductivity all specimens could be explained by using small polaron hopping model. With increasing crystallite increased activation energy for conduction decreased. This can ascribed to...
We have developed a new apparatus to evaluate thermal duffusivity and effusivity distributions of functionally graded materials (FGMs) by photothermal radiometry (PTR). Since this method is applicable the low modulation frequency range down 1 mHz, it suitable for measurement thermally thick samples such as FGMs. solved heat conduction equations multi-layered model present PTR measurement. The effects on phase lag caused three-dimensional flow in also been analysed. For solving inverse...
Materiali : 10. mednarodna konferenca o trajnostni energiji in varstvu okolja. Deseta okolja - SEEP 2017 je bila organizirana od 27. do 30. junija v Bledu, sicer Fakulteta za kemijo kemijsko tehnologijo Univerze Mariboru, Slovenija Univerza zahod Škotske. Cilj SEEP2017 združiti raziskave na področju trajnostne energije varstva z vsega sveta. Prispevani prispevki so združeni 18 sej, da bi bralcem zagotovili dostop 300 prispevkov avtorjev iz 52 državam. Zahvaljujemo se uglednim plenarnim...
Abstract Thickness dependence of the dielectric and piezoelectric properties (1- x )Pb(Mg 1/3 Nb 2/3 )O 3 - PbTiO (PMN- PT) single crystals ( = 0.28, 0.29, 0.30) grown using modified Bridgman method was investigated. After annealing repoling, free constant 7600 loss lower than 2.1% were obtained for 0.05 mm thick PMN-0.30PT, which are superior to previously reported similar thicknesses. Although PMN-0.28PT PMN-0.29PT decreased by up 10% as sample thickness from 0.30 mm, it improved after...
In general, steam curing is applied to improve the productivity of precast concrete products. After curing, products are stored outdoors for secondary before shipment. However, drying shrinkage and microcrack expansion that occurs during may impede strength enhancement. On other hand, water also clearly effective as a process. installing pool in plant not easy due limited space. Therefore, this study focused on sprinkling which relatively perform without such restrictions. study, effects...
Polychromium-oxo-deposited TiO2 (CrIIIx Oy /TiO2 ) electrodes were fabricated by a simple electrochemical technique using different basal (anatase, rutile, and mixed polymorphic phases P25) as earth-abundant photoanodes for visible-light-driven water oxidation. The high-resolution transmission electron microscopy (HR-TEM) observation illustrated that an CrIIIx layer with approximately 2-3 nm thickness was formed on the surface of crystalline particles. Upon visible-light irradiation...
In order to evaluate potential of PrNi1−xFexO3−δ as new cathode material for solid oxide fuel cells, single phase preparation, crystal structure at various temperatures, thermal expansion property and electrical conduction behavior high temperature were investigated. Single (0.3 ≤ x 1.0) with orthorhombic distorted perovskite was successfully prepared by Pechini method. No structural transition observed between room 1000°C in air. Linear coefficient evaluated be around 1.16 × 10−5 K−1,...
Trimethylphosphonium-substituted polyfluorenes (PTMPHFs) with controlled molecular weights were synthesized using the Kumada catalyst-transfer polycondensation procedure, and their recognition properties towards various biomolecules examined. Upon formation of polyelectrolyte complexes single stranded DNA (particularly polyadenine polycytosine), UV-vis absorption PTMPHF was red-shifted its fluo-rescence quenched.
For powder compaction, the Kawakita equation has been used to estimate behavior inside die. The compression pressure exerted on powders is not homogeneous because of friction die wall. However, yield and porosity estimated using are defined based assumption that voids distributed throughout bed. In this study, an extended was derived by considering variation in as it corresponds distance from loading punch surface. time section wider than which via classical equation. This result consistent...
This study addressed the long-standing challenge of determining growth kinetic Antiphase Domains (APDs) with D03-ordered structure in Fe3Al by combination phase-field (PF) simulations and transmission electron microscopy (TEM) observation. The “shape coefficient” which correlates rate APD 3-dimensional intricate shape shrinking 2-dimensional circular antiphase boundaries (APBs) thin film was assessed through a comparative analysis PF involving 2D APBs 3D APDs emerged from disordered state....
A 77 KV 40 MVA gas-vapor cooled transformer has been developed as a prototype of substation transformers, which is directed to nonflammable and lightweight properties. To examine the operating reliability transformer, test continued since July, 1981 at Hokusetsu KEPCO (Kansai Electric Power Co., Inc.). This report will cover development work on thermal stability materials, electrical fault test, insulation characteristics, cooling model flow-induced static electrification, protection system...
A new transparent mesoporous IrO<italic>x</italic> film consisting of small interconnected nanoparticles has been developed by a simple drop-cast method to provide an efficient electrocatalyst for water oxidation.