A5101815145- X-ray Spectroscopy and Fluorescence Analysis
- X-ray Diffraction in Crystallography
- Electron and X-Ray Spectroscopy Techniques
- Crystallization and Solubility Studies
- Physics of Superconductivity and Magnetism
- Photorefractive and Nonlinear Optics
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Solid-state spectroscopy and crystallography
- Luminescence Properties of Advanced Materials
- Copper Interconnects and Reliability
- Inorganic Fluorides and Related Compounds
- Rare-earth and actinide compounds
- Crystallography and molecular interactions
- Crystal Structures and Properties
- Solid State Laser Technologies
- High-pressure geophysics and materials
- Crystallography and Radiation Phenomena
- Radiation Detection and Scintillator Technologies
- Iron-based superconductors research
- Advanced Condensed Matter Physics
- Semiconductor materials and devices
- Advanced Chemical Physics Studies
- Photonic and Optical Devices
- Magnetic and transport properties of perovskites and related materials
Kyoto University
2014-2024
The University of Tokyo
1995-2024
Kyoto Bunkyo University
2005-2023
Kyoto University Institute for Chemical Research
2007-2023
Tohoku University
1996-2022
Nagoya Institute of Technology
2003-2019
Instituto de Investigaciones Químicas
2007-2017
Hokkaido University
2014
Tokyo Metropolitan Children's Medical Center
2011
Toyo University
2011
We successfully performed electron scattering off unstable nuclei which were produced online from the photofission of uranium. The target Cs137 ions trapped with a new target-forming technique that makes high-density stationary small number by confining them in an storage ring. After developments generation and transportation systems beam stacking method to increase ion intensity up approximately 2×107 per pulse beam, average luminosity 0.9×1026 cm−2 s−1 was achieved for Cs137. obtained...
The effects of various cations (, , and ) were examined as dopants into the B site perovskite barium zirconate. solubility In, Yb, Tm, Er, Ho, whose ionic radii are close to that zirconium ion, is more than 0.075 at . In contrast, when there a large difference between trivalent zirconate less microstructure sintered pellets their conductivity in wet atmosphere investigated. We could divide two classes based on extent proton microstructure: "Y-type" "Sc-type" dopants. Tm belong Y-type...
Microcrystals of coesite and stishovite were discovered as inclusions in amorphous silica grains shocked melt pockets a lunar meteorite Asuka-881757 by micro-Raman spectrometry, scanning electron microscopy, back-scatter diffraction, transmission microscopy. These high-pressure polymorphs SiO 2 indicate that the experienced an equilibrium shock-pressure at least 8–30 GPa. Secondary quartz are also observed separate meteorite. The estimated age reported 39 Ar/ 40 Ar chronology indicates...
In this study, bulky, translucent ceramics composed of silicalite-1, a pure silica zeolite with MFI topology, is prepared by spark plasma sintering (SPS) without adding binder. The effects SPS...
X-ray atomic properties of nickel were investigated in a singular approach that combines different experimental techniques to obtain new and useful reliable values fundamental parameters for spectrometric purposes comparison theoretical predictions.We determined the mass attenuation coefficients an energy range covering L-and K-absorption edges, K-shell fluorescence yield Kβ/Kα Kβ 1,3/K α1,2 transition probability ratios.The obtained line profiles linewidths Kα transitions Ni can be...
We have investigated surface morphology of YBa2Cu3O7−y thin films prepared by chemical vapor deposition (CVD) using liquid metalorganic (MO) sources on MgO(100) single crystalline substrates atomic force microscopy (AFM). An abrupt change in the terrace width was observed at temperature around 750 °C. anomalous decrease efficiency incorporation yttrium component into film also found above same temperature. It suggests that appearance phase growing and growth mode from conventional to VLS...
This paper quantitatively evaluates the mutually compensatory property in audio-video transmission over Internet by psychometric method. In our previous study, we used MOS (mean opinion score) as user-level QoS parameter; however, is an ordinal scale, and therefore, its value does not necessarily represent exact difference between observers sensory magnitude. order to solve this problem, construct interval scale from values, utilizing law of categorical judgment. We then examine how closely...
Intense X-ray free electron laser pulses can completely obliterate molecules, but the process also sheds light on energetic ions that are created. Researchers experimentally and theoretically investigate how 5-iodouacil responds to x-ray radiation.
SUMMARY The Japan forearc plays a crucial role in modulating the post-seismic deformation response to enormous stress perturbation induced by 2011 Tohoku-oki earthquake. Dense geodetic observations across have revealed coupled interactions between afterslip on subducting plate interface and viscous within mantle wedge, detailed numerical models can provide further profound insights into rheology. Recent studies presence of stagnant section Tohoku subduction zone, here we investigate...
We present a quasi-cw laser in vacuum ultraviolet region at megahertz repetition rate. The narrowband pulses generated from an ytterbium-fiber system 33 MHz rate the central wavelength of 1074 nm are frequency-converted by successive stages LiB(3)O(5) crystals and KBe(2)BO(3)F(2) crystals. radiation 153 has shortest achieved through phase-matched frequency conversion processes nonlinear optical to our knowledge.
We have investigated systematically the $K\ensuremath{\alpha}$ x-ray spectra in elements from Ca to Ge within Berger's two-Lorentzian functions model, using a high-resolution antiparallel double-crystal spectrometer, order obtain detail physical meaning of asymmetry spectral profiles. The overall tendency corrected full width at half maximum $K{\ensuremath{\alpha}}_{1}$ and $K{\ensuremath{\alpha}}_{2}$ lines as function $Z$, well linewidths, are good agreement with data reported literature....
The $K\ensuremath{\beta}$ x-ray spectra of the elements from Ca to Ge have been systematically investigated using a high-resolution antiparallel double-crystal spectrometer. Each $K{\ensuremath{\beta}}_{1,3}$ natural linewidth has corrected instrumental function this type spectrometer, and spin doublet energies obtained peak position values in spectra. For all studied $K{\ensuremath{\beta}}_{1}$ lines FWHM increase linearly as $Z$. However, for $K{\ensuremath{\beta}}_{3}$ dependence is...
Bulk sensitive x-ray spectroscopy is performed to systematically study the effect of substitution on valence transition in strongly correlated Yb compounds, such as ${\text{Y}}_{0.1}{\text{Yb}}_{0.9}{\text{InCu}}_{4}$, ${\text{YbInCu}}_{4}$, and ${\text{YbIn}}_{0.88}{\text{Ag}}_{0.12}{\text{Cu}}_{4}$, compared with complementary magnetic-susceptibility results. High-resolution absorption partial fluorescence yields mode resonant emission used measure valency change a function temperature....
Multi-scale instrumental analyses showed that the crosslinker changed morphology to homogenous while graft polymer increased molecular mobility.
YBa 2 Cu 3 O 7-δ (YBCO) thin film was fabricated by metal-organic chemical vapor deposition (MOCVD) using newly developed liquid MO-sources (MO=metal-organic). The melting points of the are lower than those conventional MO-sources, and they have stable pressure even in state. contain fluorine; however, when water added to flowing oxygen gas, fluorine-to-oxygen ratio films reduced less 0.08 at% as determined secondary ion mass spectroscopy (SIMS). reproducibility composition superconducting...
This paper proposes a new lightweight QoS/CoS control method called VWRR (variably weighted round robin) for use on high-speed backbone networks. We evaluate the efficiency of by analysis and simulation. Queueing methods that can accurately guarantee bandwidth like WFQ (weighted fair queueing) usually put high processor loads; this makes them poor choice lines. In VWRR, weight WRR router varies adaptively depending average packet length; therefore, allocation without drastically increasing...
An x-ray spectroscopy study was performed for YbCu 5- x Al ( = 0.0–2.0) using high-resolution partial-fluorescence yield (PFY) and resonant inelastic scattering (RIXS) at the Yb L 3 absorption edge. From a careful analysis of PFY RIXS spectra, mean-valence estimated is found to increase quite rapidly compositions between 0 ≤ ≤1.0, indicating strong intermediate-valence behavior. The mean valence continues gradually with becomes nearly trivalent 2.0. Our results, however, reveal that...
We present a detailed investigation of the bulk electronic properties ${\mathrm{Y}}_{1\ensuremath{-}x}{\mathrm{Pr}}_{x}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7}$ (YPrBCO) using x-ray absorption spectroscopy in partial fluorescence yield mode (PFY-XAS) at $\mathrm{Pr}\phantom{\rule{0.2em}{0ex}}{L}_{3}$, $\mathrm{Ba}\phantom{\rule{0.2em}{0ex}}{L}_{3}$, and $\mathrm{Cu}\phantom{\rule{0.2em}{0ex}}K$ edges together with $\mathrm{Pr}\phantom{\rule{0.2em}{0ex}}2{p}_{3∕2}3{d}_{5∕2}$...