A5101550865- Physics of Superconductivity and Magnetism
- Particle accelerators and beam dynamics
- Advanced Condensed Matter Physics
- Superconducting Materials and Applications
- Nuclear Physics and Applications
- Rare-earth and actinide compounds
- Radiation Detection and Scintillator Technologies
- Advanced Fiber Laser Technologies
- Muon and positron interactions and applications
- Photonic Crystal and Fiber Optics
- Rocket and propulsion systems research
- Terahertz technology and applications
- Photonic and Optical Devices
- Iron-based superconductors research
- Radioactivity and Radon Measurements
- Magnetic and transport properties of perovskites and related materials
- Nuclear reactor physics and engineering
- Radioactive Decay and Measurement Techniques
- Laser-Matter Interactions and Applications
- Particle Accelerators and Free-Electron Lasers
- Semiconductor Quantum Structures and Devices
- Particle Detector Development and Performance
- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Advanced Fiber Optic Sensors
High Energy Accelerator Research Organization
2015-2024
Japan Proton Accelerator Research Complex
2013-2023
Kobe University
2004-2023
Nara Institute of Science and Technology
2021-2023
The University of Tokyo
2011-2022
Tokyo Metropolitan University
2005-2022
Nanzan University
2022
Nagase ChemteX (Japan)
2022
Ono Pharmaceutical (Japan)
2020-2022
TDK (Japan)
2022
This paper introduces a new approach to measure the muon magnetic moment anomaly |$a_{\mu} = (g-2)/2$| and electric dipole (EDM) |$d_{\mu}$| at J-PARC facility. The goal of our experiment is |$a_{\mu}$| using an independent method with factor 10 lower momentum, 20 smaller diameter storage-ring solenoid compared previous ongoing |$g-2$| experiments unprecedented quality storage field. Additional significant differences from present experimental include 1000 transverse emittance beam...
We report results of 75As nuclear magnetic resonance (NMR) experiments on a self-flux grown single crystal BaFe2As2. A first-order antiferromagnetic (AF) transition near 135 K was detected by the splitting NMR lines, which is accompanied simultaneous structural as evidenced sudden large change electric field gradient tensor at As site. The lead almost uniquely to stripe spin structure in AF phase. data spin-lattice relaxation rate indicate development anisotropic fluctuations stripe-type...
SiO2/TiO2/poly(vinylpyrrolidone) (PVP) composite materials processed by the sol−gel technique were studied for optical waveguide applications. Change of refractive index through range 1.39−1.65 at 633 nm (optical wavelength) was achieved varying ratio between SiO2 and TiO2 concentrations. To produce low propagation loss in waveguide, it necessary to avoid precipitation particles caused fast hydrolysis reaction titanium alkoxide. By using ethylhexoxide as a alkoxide together with acetic acid...
The time variation of the elastic scattering rate solar neutrinos with electrons in Super-Kamiokande-I was fit to variations expected from active two-neutrino oscillations. best large mixing angle solution has a tan2θ=0.55 and mass squared difference Δm2=6.3×10−5eV2 between two neutrino eigenstates. fitted day-night asymmetry −1.8±1.6(stat)+1.3−1.2(syst)% improved statistical precision over previous measurements agrees well −2.1%.Received 4 September...
This paper reports the effect of randomness on a quantum spin liquid state 1T-TaS${}_{2}$ with two-dimensional perfect triangular lattice. Systematic measurements heat capacity and thermal conductivity in pure, Se-substituted, electron-irradiated crystals reveal microscopic coexistence localized orphan spins that form random valence bonds itinerant spinons appear to Fermi surface.
Various superconducting detector solenoids for particle physics have been developed in the world. The key technology is aluminum-stabilized conductor almost all magnets experiments. With progress of conductor, coil fabrication has progressed as well, such inner winding technique, indirect cooling, transparent vacuum vessel, quench protection scheme using pure aluminum strips and so on. design study future big projects Japan Europe, that is, ILC, FCC CLIC, based on technologies established...
We report the generation and detection of a terahertz wave with nonresonant electro-optical crystal using 1.56μm femtosecond laser pulses. Using 0.5-mm-thick (110)-oriented GaAs wafer for optical rectification modulation, we detected spectral sensitivity below 3THz. also estimated availability from viewpoint an coefficient phase match condition.
A liquid oxygen turbopump has been developed for the main engine (LE-7) of H-II rocket. The LE-7 LOX pump requires an inducer with quite high suction performance and head, because a low-speed low-pressure is not used ahead in engine. was designed using customary method, its hydraulic mechanical performances were investigated tests turbopumps. original combination housing satisfied required criteria. However, this found to result supersynchronous shaft vibrations due rotating cavitation which...
The effects of pressure on a quantum spin liquid are investigated in an organic Mott insulator $\ensuremath{\kappa}\text{\ensuremath{-}}(\mathrm{ET}{)}_{2}{\mathrm{Ag}}_{2}(\mathrm{CN}{)}_{3}$ with spin-$1/2$ triangular lattice. application negative chemical to $\ensuremath{\kappa}\text{\ensuremath{-}}(\mathrm{ET}{)}_{2}{\mathrm{Cu}}_{2}(\mathrm{CN}{)}_{3}$, which is well-known sister insulator, allows for extensive tuning antiferromagnetic exchange coupling, $J/{k}_{B}=175--310\text{...
A frequency comb spanning more than one octave has been achieved by injecting the second-harmonic generation (780 nm) of a mode-locked fiber laser (1.56 microm) into photonic crystal fiber. We propose and realize novel interferometric scheme for observing carrier-envelope offset comb. Frequency noise observed on measured frequency, which confirmed to be generated in comparing beat frequencies between cw lasers combs before after The is considered an important candidate light source used...
We report the analysis of ultrawideband supercontinuum generation in a highly nonlinear dispersion-shifted fiber. A >1000-nm-spanning white-light continuum is generated by pumping femtosecond fiber laser pulse at λ=1.56 μm into extreme vicinity zero-dispersion wavelength The pulses are characterized with experimentally observed sonogram traces. numerical calculation based on Schrödinger equation used to investigate mechanism generation, and these results good agreement experiment. show that...
Magnetic properties of the spin-1/2 kagome-like compound volborthite are studied using a high-quality polycrystalline sample. It is evidenced from magnetization and specific heat measurements that spins on kagome lattice still fluctuate at low temperature, down to T = 60 mK corresponds 1/1500 nearest-neighbor antiferromagnetic interaction, exhibiting neither conventional long-range order nor spin gap. In contrast, 51V NMR experiments revealed sharp peak 1 K in relaxation rate, which...
Purpose Teachers in the USA have been conducting lesson study for more than ten years since it was introduced from Japan late 1990s. Although interest is still strong and greater numbers of teachers become involved this professional learning, there are significant obstacles to high quality effective that enhances teachers’ content pedagogical knowledge, as well improving their instruction student learning classrooms. Because needs improvement USA, so can be administered effectively...
We have performed angle-resolved photoemission spectroscopy (ARPES) of LaSb and CeSb, a candidate topological insulator. Using soft-x-ray photons, we accurately determined the three-dimensional bulk band structure revealed that inversion at Brillouin-zone corner - prerequisite for realizing topological-insulator phase is absent in both CeSb. Moreover, unlike ARPES data obtained with those vacuum ultraviolet (VUV) photons were found to suffer significant $k_z$ broadening. These results...
Domoic acid (DA), a neuroexcitatory amino acid, was detected in batch culture of the newly recognized species Nitzschia navis‐varingica Lundholm et Moestrup . The production DA by this diatom confirmed electrospray ionization mass spectrometry. collected from shrimp‐culture pond Do Son, Vietnam. (1.7 pg·cell − 1 ) is within levels reported for Pseudo‐nitzschia multiseries (Hasle) Hasle. started during late exponential growth phase and reached maximum early stationary phase. Maximum axenic...
Research on rotating cavitation progressed during the development of a liquid oxygen (LOX) turbopump for LE-7 engine H-II rocket. In some ranges numbers, supersynchronous shaft vibrations were observed in LOX main pump inducer. From comparison with results our previous studies it was concluded that such caused by A simple modie cation inducer upstream housing almost completely extinguished vibrations. Some characteristics have been fairly well elucidated. However, we not able to fully...
An exo-β-1,3-galactanase gene from <i>Phanerochaetechrysosporium</i> has been cloned, sequenced, and expressed in <i>Pichiapastoris</i>. The complete amino acid sequence of theexo-β-1,3-galactanase indicated that the enzyme consists an N-terminalcatalytic module with similarity to glycoside hydrolase family 43 anadditional unknown functional domain similar carbohydrate-binding modulefamily 6 (CBM6) C-terminal region. molecular mass therecombinant was estimated as 55 kDa based on SDS-PAGE....
Formation of ultrathin amorphized Si layer by femtosecond laser irradiation is reported in this letter. Below the fluence ablation threshold, induced an amorphization crystalline Si. The authors confirmed thickness amorphous transmission electron microscope. was found to be quite uniform and did not depend on number irradiated pulses fluence, which related effective light penetration depth.
This letter describes the spectroscopic measurements of fluorescently stained cells. Variable phase-contrast fluorescence spectrometry was used on cells to achieve high two-dimensional spatial resolution. Phase shift interferometry by autocorrelation interference made it possible measure spectra in field view without separation wavelengths, as case a conventional dispersive spectrometer. In this letter, authors describe experimental characteristics generated from and verify that area can be...
We report 7Li-NMR studies on LiInCr4O8 and LiGaCr4O8, in which Cr3+ ions with spin 3/2 form a breathing pyrochlore lattice, network of tetrahedra alternating sizes. In large alternation, the nuclear relaxation rate 1/T1 shows an activated temperature (T) dependence down to 18 K, indicating singlet ground state gap. This behavior, however, is disrupted by antiferromagnetic (AF) transition at 13 preceded another, most likely structural, 16 K. contrast, LiGaCr4O8 small alternation no gap but...
Purpose miR-451 is a tumor suppressive microRNA with several target genes, including Macrophage migration inhibitory factor (MIF). As little known about the expression and clinicopathological significance of mir-451 in NSCLC, we performed study 370 NSCLC cases to clarify them. Cell biological experiments were also on cell lines confirm tumor-suppressive role whether or not MIF targeted by miR-451. Methods We analyzed for quantitative real-time polymerase chain reaction immunohistochemistry....