A5031300187- Glass properties and applications
- Advanced Surface Polishing Techniques
- Advanced ceramic materials synthesis
- Photorefractive and Nonlinear Optics
- Structural Analysis of Composite Materials
- Nonlinear Optical Materials Studies
- Phase-change materials and chalcogenides
- Luminescence Properties of Advanced Materials
- Geology and Paleoclimatology Research
- Photonic Crystals and Applications
- Building materials and conservation
- Field-Flow Fractionation Techniques
- Metal and Thin Film Mechanics
- Material Science and Thermodynamics
- Quantum Dots Synthesis And Properties
- Crystal Structures and Properties
- Karst Systems and Hydrogeology
- Geological and Geochemical Analysis
- Chemical Thermodynamics and Molecular Structure
- Material Dynamics and Properties
- Recycling and utilization of industrial and municipal waste in materials production
- Mineralogy and Gemology Studies
- Surface Roughness and Optical Measurements
- Thermal and Kinetic Analysis
- Advanced machining processes and optimization
University of Shiga Prefecture
2014-2023
Japan Steel Works (Japan)
2013-2015
Marine Technical College
2013
Tokai University
2012
American Ceramic Society
2012
Juntendo University
2011
National Institute of Technology, Ube College
2008
Shiga University
1999-2007
Kōchi University
2004-2006
National Institute of Advanced Industrial Science and Technology
2004
Background. Patients with IgA nephropathy (IgAN) often show aggravation of renal injury macroscopic hematuria after mucosal infections, especially tonsillitis. We previously demonstrated the important role Toll-like receptor 9 (TLR9) activation in pathogenesis murine IgAN. Moreover, a single nucleotide polymorphism (SNP) TLR9 was significantly associated pathological severity human In this study, we investigated correlations between tonsillar messenger RNA expression, SNP genotypes and...
Effect of B2O3 content on crack resistance was investigated by indentation tests glass samples with various compositions B2O3. The ternary SiO2–B2O3–Na2O system (SBN series) and non-alkaline aluminoborosilicate (SAB series). When is substituted SiO2 in the SBN ("SBN1" series), has a relationship density. In series where density did not change ("SBN2" decreased increasing content. On other hand, increased SAB series, change. According to results NMR measurement, boron 4-cordination state...
Au microcrystal-doped glass films with high optical nonlinearity were prepared by the sol-gel method dip-coating using NaAuCl4⋅2H2O and tetraethyl orthosilicate (TEOS) as starting materials. The film an Au/Si atomic ratio of 0.01 was successfully prepared. nonlinear susceptibility χ(3) 7.7×10-9esu. Microcrystals a radius about 7Å 30Å coexisted in film. microcrystals itself film, χm(3), 1.0×10-7esu two times larger than that observed Au-doped glasses melting method. Subsequent heat treatment...
The influence of the OH content in SiO 2 glasses on intensity second harmonic generation was investigated. containing various amounts were electrically polarized by applying 3 kV at 300°C. dependent content, and largest χ 33 (2) , which nearly 2% value LiNbO obtained for sol-gel-derived glass amount OH.
Abstract The stable-isotope composition of a tufa collected on subtropical Miyako Island, southern Japan, records climatic and hydrologic changes over 15-year period (1989–2003). A total 450 subsamples taken at increments 0.2 mm define the high-resolution isotopic profile 9-cm-long sample. oxygen isotope values clearly exhibit cyclical that generally correlate with annual lamination pattern tufa. observed stability water δ18O confirms seasonal temperature are reflected in cyclic change...
Research Article| September 01, 2004 High-resolution records of rainfall events from clay bands in tufa Akihiro Kano; Kano 1Department Earth and Planetary Systems Science, Hiroshima University, 739-8526 Higashi-Hiroshima, Japan Search for other works by this author on: GSW Google Scholar Tatsuya Kawai; Kawai Jun Matsuoka; Matsuoka 2Center Advanced Marine Core Research, Kochi 783-8502 Nankoku, Takuji Ihara 3OYO Cooperation Okayama, 700-0942 Author Article Information Publisher: Geological...
The load dependence of densification during a Vickers indentation test was investigated for three commercial glass compositions, soda-lime silicate glass, aluminoborosilicate and lead borosilicate each which exhibits markedly different susceptibility to crack initiation. contribution the total deformation due evaluated as ratio depths before after heat treatment measured with an atomic force microscope (AFM). For glasses, decreases increasing applied load, but rate decrease is less...
To clarify the origin of second-harmonic generation (SHG) from electrically polarized SiO2 glasses, we have investigated influence OH concentration and structural defects in glasses that poling conditions on intensity SHG. The SHG was increased with concentration, most intense observed solgel-derived containing 2500 parts 106 OH. On other hand, not clearly related to specific observable by electron spin resonance vacuum-ultraviolet absorption spectra. With respect conditions, largest when...
The relationship between crack initiation tendency before chemical strengthening and fracture strength of chemically strengthened glass was investigated. Four kinds compositions were used in this study: soda‐lime silicate ( SLS ), aluminosilicate ALS ‐1, ‐2), aluminoborosilicate ALBS ) glasses. sheet measured by the four‐point bending test, ring‐on‐ring ball drop predamaged test. glass, which has lowest formation probability strengthening, is more damage tolerant than other glasses, one best...
The annealing characteristics of Knoop‐indented silica and soda–lime–silica glasses were investigated. These indented using a Knoop indenter in water, they annealed at various temperatures below the glass transition temperature. major diagonal length indentation was measured before after annealing, change determined. much larger than that glass. This attributed to occurrence more densification around activation energy shrinkage glass, estimated from temperature dependence relaxation time, 46...
It is known that indentation using a diamond indenter induces permanent densification to result in plastic or inelastic deformation of glass. However, it still unclear whether high tensile stress causes such structural change not. In this study, fracture‐ and indentation‐induced changes glasses with the compositions 20 Na 2 O − 40 x B 3 – (80−40 ) SiO (in mol%, = 0, 0.5, 1, 1.5) are investigated. Two‐point bending tests glass fibers performed apply glasses, Vickers also carried out for...