A5014258600- Rare-earth and actinide compounds
- Iron-based superconductors research
- Magnetic Properties of Alloys
- Magnetic Properties and Applications
- Microstructure and Mechanical Properties of Steels
- Inorganic Chemistry and Materials
- Physics of Superconductivity and Magnetism
- Magnetic and transport properties of perovskites and related materials
- Electric Motor Design and Analysis
- Magnetic properties of thin films
- Boron and Carbon Nanomaterials Research
- Cardiac Arrhythmias and Treatments
- Metal Alloys Wear and Properties
- Atrial Fibrillation Management and Outcomes
- Heart Rate Variability and Autonomic Control
- High-pressure geophysics and materials
- Hydrology and Sediment Transport Processes
- Fiber-reinforced polymer composites
- Hydraulic flow and structures
- Thermodynamic and Structural Properties of Metals and Alloys
- Flow Measurement and Analysis
- Retinoids in leukemia and cellular processes
- Experimental and Theoretical Physics Studies
- Video Analysis and Summarization
- Blood Pressure and Hypertension Studies
JFE Holdings (Japan)
2023-2024
Japan Steel Works (Japan)
2022
Otsuka (Japan)
2020
Nippon Medical School
2020
Hirosaki University
1998-2016
University College London
2014
Japan Patent Office
2014
Hosei University
2009
Waseda University
2006
Osaka University
2000-2004
To clarify the influence of hypertension and blood pressure (BP) control on thromboembolism major hemorrhage in patients with nonvalvular atrial fibrillation, a post hoc analysis J-RHYTHM Registry was performed.A consecutive series outpatients fibrillation enrolled from 158 institutions. Of 7937 patients, 7406 (70.8% men, 69.8±10.0 years) were followed for 2 years or until an event occurred. Hypertension defined as systolic BP ≥140 mm Hg, diastolic ≥90 history hypertension, and/or...
Polymeric nanoparticles have important applications in drug delivery, biotechnology, diagnostics and energy harvesting. We report a new technique named electrospray nanoprecipitation, which combines with agitated solvent displacement. The process enables one-step formation of polymeric <100 nm size that are near-monodisperse diameter range significantly lower than could be obtained using either or displacement alone. Both reduction polymer solution concentration the addition poly(vinyl...
We have studied the thermal and magnetic properties of a single crystal ${\mathrm{CeAgSb}}_{2},$ which has small net moment about $0.4{\ensuremath{\mu}}_{\mathrm{B}}$ below ordering temperature ${T}_{\mathrm{ord}}=9.7\mathrm{K},$ by means specific heat, expansion, magnetization measurements. The part heat shows broad peak around 30 K, entropy reaches $R\mathrm{ln}4$ at 50 K. This indicates that first excited doublet is situated K from ground state. In addition, expansion along tetragonal...
In order to understand the anisotropic magnetic and electrical properties of ternary compounds $\mathrm{Ce}T{\mathrm{Sb}}_{2}$ $(T=\mathrm{Cu},$ Au, Ni) with tetragonal structure, we have grown single crystals this series by self-flux method measured resistivity, susceptibility, magnetization, specific heat. ${\mathrm{CeCuSb}}_{2}$ ${\mathrm{CeAuSb}}_{2}$ are found antiferromagnetically N\'eel temperatures 6.9 K 5.0 K, respectively, while ${\mathrm{CeNiSb}}_{2}$ is a ferromagnet Curie...
A new Si-gradient steel (JNRF TM ) with a combination of low iron loss and high magnetic flux density was developed by controlling the Si distribution in thickness direction crystal orientation. Drone motors made conventional (JNHF ), steel, 3% were evaluated. As result, motor using showed both efficiency torque. In conclusion, is suitable core material for that require power efficiency, such as drone motors.
We have carried out the de Haas–van Alphen (dHvA) experiment to clarify Fermi surface property of an antiferromagnet UPtGa 5 , and constructed magnetic phase diagram from high-field magnetization measurement. From dHvA experiment, is found consist four kinds nearly cylindrical surfaces along tetragonal [001] direction, which are approximately explained by result spin-polarized energy band calculations based on antiferromagnetic structure with a sequence (↑ ↓) [001]. Relatively large...
AbstractWe succeeded in growing high-quality single crystals of UCoGa5 and URhGa5 by the self-flux method measured electrical resistivity, magnetic susceptibility, de Hass-van Alphen(dHvA) oscillation. Three kinds dHvA branches were observed, ranging from 8.6x 105 to 8.1 x 106Oe, which correspond closed Fermi surfaces. URhGas are concluded be semimetals. The cyclotron mass is small, 0.6 m0 2.9 m0.Keywords: UCoGa5URhGa5semimetaldHvAFermi surface
We succeeded in growing a high-quality single crystal of an antiferromagnet UPtGa 5 by the self-flux method, and measured magnetic susceptibility, electrical resistivity, specific heat de Haas–van Alphen (dHvA) oscillation. found antiferromagnetic transition at 26 K from susceptibility resistivity measurements. Six dHvA branches were observed, ranging 1.14 ×10 7 to 1.13 8 Oe. Fermi surfaces consist two nearly cylindrical spherical surfaces. The cyclotron mass is large, 10 24 m 0 , which...
The present study examined whether basic fibroblast growth factor (bFGF)-impregnated acidic gelatin hydrogel microspheres (AGHM) would enhance collateral development to the infarct area in dogs with coronary occlusion. Studies were conducted 28 a 2-week occlusion of proximal left anterior descending artery (LAD). divided into 3 groups according treatment: Group A treated bFGF-impregnated AGHM area; B free-form bFGF; C alone. Coronary angiography (n=15; A, 7 dogs; B, 5 C, dogs) and regional...
Increasing the silicon content in non-grain-oriented (NO) electrical steel sheets is known to decrease iron loss by changing resistivity and magnetostriction behavior. However, few studies on effect of high contents grain-oriented (GO) have been reported. One major differences GO NO that excess eddy current loss, which has a strong relationship with magnetic domain structure, more dominant total GO. In this paper, was prepared CVD siliconizing method, advantage can be changed without crystal...
We have measured the electrical resistivity, magnetic susceptibility, high-field magnetization, specific heat and de Haas–van Alphen (dHvA) oscillation of Ce 2 RhIn 8 , together with dHvA La . In we detected three kinds branches showing cylindrical Fermi surfaces, which are well explained by result FLAPW energy band calculations. The corresponding two were in indicating that topology surface is approximately same as susceptibility magnetization analyzed on basis crystalline electric field...
Background Blood pressure (BP) variability has reportedly been a risk factor for various clinical events. To clarify the influence of BP visit‐to‐visit on adverse events in patients with nonvalvular atrial fibrillation, post hoc analysis J‐RHYTHM Registry was performed. Methods and Results Of 7406 outpatients fibrillation from 158 institutions, 7226 (age, 69.7±9.9 years; men, 70.7%), whom measured 4 times or more (14.6±5.0 times) during 2‐year follow‐up period until occurrence an event,...
Non-oriented (NO) magnetic steels show gradually increasing relevance over an extended range of frequencies, in particular for electric drives. However, until now, data corresponding characteristics like losses P are available very restricted ways. A reason is that loss testers standardized technical low frequency (LF) now. Here we report detailed three steel types, tested by broad-band single sheet offer tests up to high (HF), values f = 10 kHz, samples 500 × 170 mm2 (or mm). In solving a...
A series of the ternary compounds CeTBi 2 (T: Ni, Cu and Ag) have been grown in single crystalline form by means flux method. These crystallize tetragonal crystal structure. Measurements electrical resistivity, magnetic susceptibility, magnetization, low temperature specific heat de Haas–van Alphen effect are reported. order antiferromagnetically with an easy-axis magnetization along [001] direction( c -axis). The resistivity susceptibility highly anisotropic, reflecting quasi-two dimensional
We have performed the de Haas-van Alphen (dHvA) and ac-susceptibility experiments on a ferromagnet UGe2 under pressure for field along easy a-axis. The p-H phase diagram was determined, indicating three kinds of phase: paramagnetic weakly strongly polarized phases. detected dHvA frequencies as well cyclotron masses are found to be very different between states. A change Fermi surface occurs when is changed into with increasing magnetic field.
Abstract We have carried out the de Haas-van Alphen (dHvA) experiment, together with electrical resistivity, magnetic susceptibility, magnetization and specific heat experiments on a high-quality single-crystal CeAgSb2, which has small net ferromagnetic moment of 0.4 μB per Ce atom. The bulk properties are well explained by crystalline electric field scheme. On other hand, large dHvA frequencies 108 Oe, correspond to cylindrical Fermi surfaces, were detected measurement for along tetragonal...
A gradient Si steel sheet, which has high content in the surface layer and low center of thickness, shows extremely iron loss frequency range. In this paper, magnetic properties sheets under compressive stress were investigated. a 3.5%Si increases with increase stress. On other hand, sheet This decrease is due to residual tensile sheet. To evaluate effect core materials on motor, we fabricated IPM (Interior Permanent Magnet) motors using 3%Si steel, 6.5%Si sheets. motor after heat shrinking....
We have carried out de Haas–van Alphen (dHvA) experiments on a ferromagnet CeRh3B2 with an extremely high Curie temperature K and non-4f reference compound LaRh3B2. The dHvA data of LaRh3B2 are well explained by the results energy band calculations. topology Fermi surfaces in is found to be very similar that LaRh3B2, possessing wavy but flat basal plane. Observation quasi-one-dimensional electronic state first such case rare earth compound.
We have grown a single crystal of UCr 2 Si for the first time. exhibits structural transition from ThCr -type ( I 4/ m ) to triclinic structure P \bar1) below T =210 K. The antiferromagnetic was determined by means neutron diffractions, indicating propagation vector \(Q=[-\frac{1}{2},\frac{1}{2},0]\) and magnetic moment 0.65µ B /U oriented along [0,0,1] direction. high-field magnetization at 4.2 K indicates metamagnetic 11.4 T, reaching 14.9 T. medium size electronic specific heat...
We have grown a single crystal of PrRh 3 B 2 with the hexagonal structure and measured electrical resistivity, specific heat, de Haas–van Alphen oscillation, magnetic susceptibility, high-field magnetization, thermal expansion magnetostriction. is not simple ferromagnet as reported previously, but ferrimagnet an ordering temperature T ord =3.6 K. The Schottky heat observed around 25 K large anisotropy susceptibility magnetization are found to be well explained by crystalline electric field...
CeRh3B2 is a ferromagnet with an unexpectedly high Curie temperature and low saturation magnetic moments. The origin of its unusual behaviour remains unelucidated despite various investigations performed in the last two decades. Here we present results obtained on high-quality single crystals over wide range. Some new features are uncovered possible approaches to explaining magnetism briefly discussed.
We have studied the effect of pressure on electrical resistivity a high-quality single crystal CeAgSb2 which has small net ferromagnetic moment 0.4μB/Ce. The magnetic ordering temperature Tord = 9.7 K decreases with increasing p and disappears at critical pc ≃ 3.3 GPa. residual resistivity, is close to zero up 3 GPa, increases steeply above reaching 55μΩ cm pc. A huge found appear when order disappears.
We propose a hybrid voice conversion method which employs combination of techniques using HMM-based unit selection and spectrum generation. In the proposed method, selects most likely for required phoneme context from target speaker's corpus when candidates exist in corpus. Unit is performed based on sequence spectral probability distribution obtained adapted HMMs. On other hand, does not corpus, waveform generated HMM by maximizing likelihood. The also adjusted to prosody weight defined...