Search Results - "Okada, Taku"
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Vibration Power Generation Property of U-Shaped Unimorph Device Using Grain-Oriented Electrical Steel
Published in MATERIALS TRANSACTIONS (01-12-2021)“…The performance of vibration power generation using the inverse magnetostrictive effect increases with increasing its device size. In this study,…”
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2
Enhanced power factor and high-pressure effects in (Bi,Sb)2(Te,Se)3 thermoelectrics
Published in Applied physics letters (06-04-2015)“…We investigated the effects of applied high pressure on thermoelectric, electric, structural, and optical properties of single-crystalline thermoelectrics,…”
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3
Pressure-induced coherent sliding-layer transition in the excitonic insulator Ta2NiSe5
Published in IUCrJ (01-03-2018)“…The crystal structure of the excitonic insulator Ta2NiSe5 has been investigated under a range of pressures, as determined by the complementary analysis of both…”
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Impact of Lanthanoid Substitution on the Structural and Physical Properties of an Infinite-Layer Iron Oxide
Published in Inorganic chemistry (21-11-2016)“…The effect of lanthanoid (Ln = Nd, Sm, Ho) substitution on the structural and physical properties of the infinite-layer iron oxide SrFeO2 was investigated by…”
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5
Treating a Global Health Crisis with a Dose of Synthetic Chemistry
Published in ACS central science (22-07-2020)“…The SARS-CoV-2 pandemic has prompted scientists from many disciplines to work collaboratively toward an effective response. As academic synthetic chemists, we…”
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6
Reaction between Forsterite and Nitrogen Fluid at High Pressure and High Temperature
Published in Geochemistry international (01-09-2019)“…Behavior of nitrogen in the deep Earth still remains unrevealed. Geochemical data suggest that substantial amount of nitrogen could be stored in the deep…”
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7
Structural analysis of pressure-amorphized zirconium tungstate
Published in Physical review. B, Condensed matter and materials physics (06-04-2010)Get full text
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8
Anomalous behavior of cristobalite in helium under high pressure
Published in Physics and chemistry of minerals (01-01-2013)“…We have investigated the high-pressure behavior of cristobalite in helium by powder X-ray diffraction. Cristobalite transformed to a new phase at about 8 GPa…”
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9
Preferential dissolution of SiO2 from enstatite to H2 fluid under high pressure and temperature
Published in Physics and chemistry of minerals (01-04-2016)“…Stability and phase relations of coexisting enstatite and H 2 fluid were investigated in the pressure and temperature regions of 3.1–13.9 GPa and 1500–2000 K…”
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10
The stability and equation of state for the cotunnite phase of TiO2 up to 70 GPa
Published in Physics and chemistry of minerals (01-03-2010)“…The stability and equation of state for the cotunnite phase in TiO 2 were investigated up to a pressure of about 70 GPa by high-pressure in situ X-ray…”
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Compression behaviors of distorted rutile-type hydrous phases, MOOH (M = Ga, In, Cr) and CrOOD
Published in Physics and chemistry of minerals (01-05-2012)“…X-ray diffraction measurements of distorted rutile-type oxyhydroxides β-GaOOH, InOOH, β-CrOOH, and β-CrOOD were taken at a maximum pressure of up to 35 GPa…”
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12
B1-to-B2 Structural Transitions in Rock Salt Intergrowth Structures
Published in Inorganic chemistry (21-11-2011)“…The rock salt (B1) structure of binary oxides or chalcogenides transforms to the CsCl (B2) structure under high pressure, with critical pressures P s depending…”
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13
Highly Coplanar Polythiophenes with –C≡CR Side Chains: Self-Assembly, Linear and Nonlinear Optical Properties, and Piezochromism
Published in Bulletin of the Chemical Society of Japan (15-07-2009)“…Self-assembly of polythiophenes with –C≡CR (R = alkyl, phenyl, etc.) side chains has been investigated. Seven new polymers consisting of head-to-head and…”
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14
In situ determination of the phase boundary between Wadsleyite and Ringwoodite in Mg2SiO4
Published in Geophysical research letters (15-03-2000)“…The phase boundary between wadsleyite and ringwoodite in Mg2SiO4 composition was determined by in situ observation using synchrotron X‐ray and multi anvil…”
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15
Crystal Structure of New Carbon--Nitride-Related Material C2N2(CH2)
Published in Jpn J Appl Phys (01-09-2011)“…A new carbon--nitride-related C 2 N 2 (CH 2 ) nanoplatelet was synthesized by subjecting a precursor C 3 N 4 H x O y nanoparticle in a laser-heating diamond…”
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16
Pressure response of Raman spectra of water and its implication to the change in hydrogen bond interaction
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (01-08-2005)“…In situ Raman spectroscopic measurements of water in the region of OH vibration were conducted up to 0.4 GPa at 23 and 52 °C. The frequencies of the decomposed…”
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17
Asymmetric Total Synthesis of Laurallene
Published in Organic letters (18-01-2019)“…The asymmetric total synthesis of laurallene was achieved in 13 steps for the longest linear sequence with 3.3% overall yield from commercially available…”
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18
Evaluation of Magnetic Flux Density Change for Vibration Energy Harvesting: Comparison between Direct and Indirect Measurements
Published in IEEE transactions on magnetics (01-11-2023)“…The magnetic flux density change Δ B due to the inverse magnetostrictive effect is important to developing superior inverse magnetostrictive materials for the…”
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19
High-pressure amorphous phase of vanadium pentaoxide
Published in Physical review. B, Condensed matter and materials physics (30-03-2012)“…We have discovered a high-pressure amorphous state of vanadium pentaoxide based on the results of an in situ high-pressure Raman spectroscopic and synchrotron…”
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20
Application of various materials with negative saturation magnetostriction to vibration power generation
Published in IEEE transactions on magnetics (01-11-2023)“…Various materials with negative saturation magnetostriction were applied to a U-shaped unimorph device for vibration power generation using inverse…”
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