Výsledky vyhledávání - "Takashi Segi"

Akademický článek

Feature extraction and spatial imaging of synchrotron radiation X-ray diffraction patterns using unsupervised machine learning

Autor: Kentaro Kutsukake, Takefumi Kamioka, Kota Matsui, Ichiro Takeuchi, Takashi Segi, Takuo Sasaki, Seiji Fujikawa, Masamitu Takahasi

Publikováno v: Science and Technology of Advanced Materials: Methods, Vol 4, Iss 1 (2024)

ABSTRACTWe analyzed a number of complicated X-ray diffraction patterns using feature patterns obtained through unsupervised machine learning. A crystalline SiGe film on a Si substrate with a spatial fluctuation in both composition and crystal orienta

Externí odkaz: https://doaj.org/article/c5fd43a7b7414262a9bc15bb30fbf8c3

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Synchrotron radiation-based 61Ni Mössbauer spectroscopic study of Li(Ni1/3Mn1/3Co1/3)O 2 cathode materials of lithium ion rechargeable battery

Autor: Makoto Seto, Takayuki Tsubota, Yoshitaka Yoda, Ryo Masuda, Takashi Segi, Yasuhiro Kobayashi

Publikováno v: Hyperfine Interactions. 237

Layered rocksalt type oxides, such as Li(Ni1/3Mn1/3Co1/3)O 2, are widely used as the cathode active materials of lithium-ion rechargeable batteries. Because the nickel ions are associated with the role of the charge compensation at discharge and char

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6d752092a37ff589159e322f5f3e57b
https://doi.org/10.1007/s10751-016-1252-2

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Evaluation of the Transport Properties of a Degenerated Li(Ni1/3Mn1/3Co1/3)O2 Positive Electrode Using Density Functional Theory

Autor: Takashi Segi, Rinun Shu, Tatsuya Yamaue, Takayuki Tsubota

Publikováno v: Proceedings of Computational Science Workshop 2014 (CSW2014).

To investigate the relationship between the atomic rearrangement and ion transport properties of bulk Li(Ni1/3Mn1/3Co1/3)O2 subjected to aging by charge–discharge cycling, transmission electron microscopy (TEM) observation and first-principles calc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45ee32814a562b9c87464e07713a2fa8
https://doi.org/10.7566/jpscp.5.011014

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Influence of cations and anions on the formation of β-FeOOH

Autor: Takayuki Kamimura, S. Morimoto, Takashi Tazaki, Takashi Segi, S. Nasu, Takeo Kudo, Hideaki Miyuki

Publikováno v: Corrosion Science. 47:2531-2542

In the presence of cations such as Cr3+, Cu2+ and Ni2+, and anions such as SO 4 2 - and NO 3 - , precipitation of β-FeOOH from Fe3+-solution containing Cl− by hydrolysis have been investigated by means of X-ray diffraction technique (XRD), Mossbau

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::939369071c328ca4fa58194e0c583eac
https://doi.org/10.1016/j.corsci.2004.10.014

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57Fe Mössbauer Spectroscopic Study of Fe–B Compounds

Autor: Takashi Segi, Suburo Nasu, Shotaro Morimoto, Hisato Tokoro

Publikováno v: Hyperfine Interactions. :241-245

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a4008875fd7a9933042a8fef1c56398
https://doi.org/10.1023/b:hype.0000043216.98484.44

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Preparation of Iron Fine Particles Coated with Boron Nitride Layers

Autor: Takeo Oku, Takashi Segi, Shigeo Fujii, Saburo Nasu, Hisato Tokoro

Publikováno v: MATERIALS TRANSACTIONS. 45:2941-2944

Boron (B) powders mixed with hematite or iron (Fe) nanoparticles were annealed at 1573 K in nitrogen atmosphere. X-ray diffraction measurement shows that mixture of B and hematite changed to boron nitride (BN) and metallic Fe after the annealing with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea2b0e9fb9c8a1a3c573bd2c5c7f3d49
https://doi.org/10.2320/matertrans.45.2941

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Corrosion behavior of steel under wet and dry cycles containing Cr3+ ion

Autor: S. Morimoto, Takayuki Kamimura, Takashi Segi, Takashi Tazaki, Hideaki Miyuki, S. Nasu

Publikováno v: Corrosion Science. 45:1863-1879

The corrosion behavior of mild steel has been investigated during the wet and dry cyclic transitions containing Cr 3+ ion added as sulfate in order to gain a better understanding of the influence of Cr on the atmospheric corrosion of steels. The corr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4100ee9448e169e4099bfb04660a44bf
https://doi.org/10.1016/s0010-938x(03)00023-4

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