Updated on 2024/10/10

Information

 

写真a

 
IHARA SHIRO
 
Organization
Institute for Materials Chemistry and Engineering Department of Integrated Materials Assistant Professor
Interdisciplinary Graduate School of Engineering Sciences Department of Interdisciplinary Engineering Sciences（Concurrent）
Title
Assistant Professor
Contact information
メールアドレス
External link

Degree

  • PhD(Engineering)

Research Interests・Research Keywords

  • Research theme：Three-dimensional visualization of Cu nanoparticle sintering

    Keyword：Transmission electron microscopy, Electron tomography, Image processing

    Research period： 2022.4

  • Research theme：Improving microscopic images and application for in-situ experiments by machine-learning

    Keyword：Machine learning, Electron Microscope, Dislocation

    Research period： 2021.4 - 2023.3

Awards

  • 学術奨励賞

    2024.5   日本材料学会   走査透過電子顕微鏡法における先進的イメージング手法の開発に関する研究

    井原　史朗

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

Papers

  • In situ electron tomography for the thermally activated solid reaction of anaerobic nanoparticles Reviewed International journal

    @Shiro Ihara, #Mizumo Yoshinaga, @Hiroya Miyazaki, #Kota Wada, @Satoshi Hata, @Hikaru Saito and @Mitsuhiro Murayama

    Nanoscale   15   10133 - 10140   2023.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1039/D3NR00992K

  • Deep learning-based noise filtering toward millisecond order imaging by using scanning transmission electron microscopy Reviewed International journal

    S. Ihara, H. Saito, M. Yoshinaga, L. Avala, M. Murayama

    Sci. Rep.   12 ( 1 )   13462   2022.8   （ ISSN:2045-2322 eISSN:2045-2322 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Application of scanning transmission electron microscopy (STEM) to in situ observation will be essential in the current and emerging data-driven materials science by taking STEM’s high affinity with various analytical options into account. As is well known, STEM’s image acquisition time needs to be further shortened to capture a targeted phenomenon in real-time as STEM’s current temporal resolution is far below the conventional TEM’s. However, rapid image acquisition in the millisecond per frame or faster generally causes image distortion, poor electron signals, and unidirectional blurring, which are obstacles for realizing video-rate STEM observation. Here we show an image correction framework integrating deep learning (DL)-based denoising and image distortion correction schemes optimized for STEM rapid image acquisition. By comparing a series of distortion corrected rapid scan images with corresponding regular scan speed images, the trained DL network is shown to remove not only the statistical noise but also the unidirectional blurring. This result demonstrates that rapid as well as high-quality image acquisition by STEM without hardware modification can be established by the DL. The DL-based noise filter could be applied to in-situ observation, such as dislocation activities under external stimuli, with high spatio-temporal resolution.

    DOI： 10.1038/s41598-022-17360-3

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    Other Link： https://www.nature.com/articles/s41598-022-17360-3

  • Five-second STEM dislocation tomography for 300 nm thick specimen assisted by deep-learning-based noise filtering Reviewed International journal

    #Y. Zhao, #S. Koike, #R. Nakama, @S. Ihara, @M. Mitsuhara, @M. Murayama, @S. Hata and @H. Saito

    Sci. Rep.   11   20720   2021.10

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Deep-Learning-Assisted Rapid STEM and Its Application to Tomography Observation

    Saito Hikaru, Ihara Shiro, Hata Satoshi, Murayama Mitsuhiro

    KENBIKYO   59 ( 2 )   52 - 56   2024.8   （ ISSN:13490958 eISSN:24342386 ）

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    Language：Japanese   Publisher：The Japanese Society of Microscopy  

    <p>Scanning transmission electron microscopy (STEM) is more suitable for visualizing the internal structure of thick samples compared to conventional transmission electron microscopy whose resolution is limited by the chromatic aberration of the imaging lens system, and it is often used for three-dimensional structural analysis using electron tomography. However, STEM image quality is seriously degraded by noise and artifacts, especially when pursuing rapid imaging on the order of milliseconds per frame or faster. In this paper, we report that deep learning-based denoising is effective for rapid STEM imaging, and can be applicable to rapid STEM tomography. By acquiring tilt-series images in just 5 seconds, the three-dimensional dislocation arrangement in a thick (300 nm) steel sample can be determined with sufficient accuracy. This method has enormous potential on improving in-situ or operando observation of samples in relatively thick media including liquid cells.</p>

    DOI： 10.11410/kenbikyo.59.2_52

    CiNii Research

  • In-situ heating-and-electron tomography for materials research: from 3D (in-situ 2D) to 4D (in-situ 3D)

    Satoshi Hata, Shiro Ihara, Hikaru Saito, Mitsuhiro Murayama

    73 ( 2 )   133 - 144   2024.4   （ ISSN:2050-5698 eISSN:2050-5701 ）

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    Language：English   Publisher：Microscopy  

    DOI： 10.1093/jmicro/dfae008

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  • Three-dimensional in-situ observation of metal nanoparticle sintering by using transmission electron microscopy

    Ihara Shiro, Saito Hikaru, Hata Satoshi, Murayama Mitsuhiro

    Journal of the Japanese Association for Crystal Growth   51 ( 1 )   n/a   2024   （ ISSN:03856275 eISSN:21878366 ）

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    Language：Japanese   Publisher：The Japanese Association for Crystal Growth  

    <p>  Metal nanoparticles undertake sintering at a lower temperature compared to their bulk counterparts, attracting great attention in industrial applications such as printed electronics. Since nanoparticles are easy to aggregate, the three-dimensional (3D) visualization of their sintering process plays a vital role in quantifying the morphological changes during heating. However, the nanoparticles are sensitive to surface contamination, resulting in poor affinity to the 3D visualization with conventional electron beam intensity because the visualization technique requires a long beam exposure time, potentially making beam induced contamination significant. In this paper, we demonstrate our developed 3D observation scheme, including advanced image processing techniques. A sample transfer system, which enables to prevent nanoparticles from being exposed to air, and an ultra-low-electron dose observation protocol prevents surface contamination during the observation. The low-signal-to-noise ratio of acquired images is compensated by the advanced image processing techniques. The obtained 3D images of nanoparticles enable to measure the neck growth and variation of particle distance in 3D during the sintering in a quantitative way.</p>

    DOI： 10.19009/jjacg.51-1-03

    CiNii Research

  • Deep Learning Enabled High-Speed Scanning Transmission Electron Microscopy for In Situ and Three-Dimensional Observation

    IHARA Shiro, Saito Hikaru, MURAYAMA Mitsuhiro

    Journal of the Society of Materials Science, Japan   72 ( 9 )   631 - 637   2023.9   （ ISSN:05145163 eISSN:18807488 ）

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    Language：Japanese   Publisher：The Society of Materials Science, Japan  

    DOI： 10.2472/jsms.72.631

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  • Yield and flow properties of ultra-fine, fine, and coarse grain microstructures of FeCoNi equiatomic alloy at ambient and cryogenic temperatures Reviewed International journal

    Avala Lavakumar, Shuhei Yoshida, Jesada Punyafu, Shiro Ihara, Yan Chong, Hikaru Saito, Nobuhiro Tsuji, Mitsuhiro Murayama

    Scripta Materialia   230   115392 - 115392   2023.6   （ ISSN:1359-6462 eISSN:1872-8456 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.scriptamat.2023.115392

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  • Microstructural factors dictating the initial plastic deformation behavior of an ultrafine-grained Fe–22Mn-0.6C TWIP steel Reviewed International journal

    Jesada Punyafu, Sukyoung Hwang, Shiro Ihara, Hikaru Saito, Nobuhiro Tsuji, Mitsuhiro Murayama

    Materials Science and Engineering: A   862   144506   2023.1   （ ISSN:0921-5093 eISSN:1873-4936 ）

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.msea.2022.144506

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  • Recent Studies on TEM/STEM Tomography

    Hata Satoshi, Zhao Yifang, Ihara Shiro, Saito Hikaru, Mitsuhara Masatoshi, Murayama Mitsuhiro

    Materia Japan   61 ( 2 )   84 - 88   2022.2   （ ISSN:13402625 eISSN:18845843 ）

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    Language：Japanese   Publisher：The Japan Institute of Metals and Materials  

    DOI： 10.2320/materia.61.84

    CiNii Research

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Presentations

  • Developing three-dimensional visualization methods for in-situ heating observation in transmission electron microscopy with the aid of information science Invited International coauthorship

    Shiro Ihara, Shunsuke Sato, Jesada Punyafu, Hikaru Saito, Mitsuhiro Murayama

    The 80th Annual Meeting of The Japanese Society of Microscopy  2024.6 

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    Event date： 2024.6

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

    Venue：Makuhari Messe   Country：Japan  

  • 深層学習の援用による走査透過電子顕微鏡法その場観察および3次元観察の高速化 Invited

    井原史朗

    マルチスケール材料力学部門委員会  2023.10 

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    Event date： 2023.10

    Language：Japanese  

    Venue：京都テルサ   Country：Japan  

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  • STEM を用いた加熱その場観察における機械学習の応用 Invited

    井原史朗

    超高分解能顕微鏡法分科会 研究討論会  2023.3 

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    Event date： 2023.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：マホロバ・マインズ三浦   Country：Japan  

  • Data Processing for In Situ Electron Tomography toward Unbiased Approach: Application to Metal Nanoparticle Sintering International conference

    Shiro Ihara, Mitsuhiro Murayama

    Microscopy & Microanalysis  2024.8 

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    Event date： 2024.7 - 2024.8

    Language：English   Presentation type：Poster presentation  

    Venue：Cleveland, Ohio   Country：United States  

  • 情報科学を取り入れた透過電子顕微鏡法による3次元ナノ構造解析 International coauthorship

    井原史朗(九大), 佐藤俊介, Jesada PUNYAFU, 斉藤光, 村山光宏

    第9回マルチスケール材料力学シンポジウム  2024.5 

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    Event date： 2024.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：出島メッセ長崎   Country：Japan  

  • In-situ electron tomography for thermally activated solid reaction of anaerobic nanoparticles International conference

    @S. Ihara, @H. Saito, @M. Yoshinaga, @H. Miyazaki, #K. Wada, @S. Hata, @M. Murayama

    IMC20  2023.9 

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    Event date： 2023.9

    Language：English   Presentation type：Oral presentation (general)  

    Country：Korea, Republic of  

  • Deep learning enabled high speed scanning transmission electron microscopy for in situ and three dimensional observation International conference

    S. Ihara, H. Saito, and M. Murayama

    IMC20  2023.9 

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    Event date： 2023.9

    Language：English  

    Venue：Bexco, Busan   Country：Korea, Republic of  

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  • Four-dimensional electron microscopy for sintering behavior of anaerobic nanoparticles International conference

    @S. Ihara, @H. Saito, @M. Yoshinaga, @H. Miyazaki, #K. Wada, @S. Hata, and @M. Murayama

    IMC20 Satellite Symposium  2023.9 

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    Event date： 2023.9

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  • その場加熱電子線トモグラフィー観察によるCu ナノ粒子焼結過程の解析

    井原史朗, 義永瑞雲, 佐藤俊介, 池内みどり, 斉藤光, 村山光宏

    日本顕微鏡学会第79回学術講演会  2023.6 

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    Event date： 2023.6

    Language：Japanese  

    Venue：くにびきメッセ   Country：Japan  

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  • レーザ加熱によるA2024アルミニウム合金の表面溶体化処理と表面時効硬化

    @山本武海，＠西本浩司，@立石学，@安田武司，@奥本良博，@井原史朗

    軽金属学会第144回春期大会  2023.5 

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    Event date： 2023.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：香川大学幸町キャンパス   Country：Japan  

  • レーザ加熱によるA2024アルミニウム合金の表面溶体化処理と表面時効硬化

    山本武海, 西本浩司, 立石学, 安田武司, 奥本良博, 井原史朗

    軽金属学会第144回春期大会  2023.5 

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    Event date： 2023.5

    Language：Japanese  

    Venue：香川大学幸町キャンパス   Country：Japan  

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  • レーザ加熱によるアルミニウム合金の表面溶体化処理

    山本武海, 立石学, 安田武司, 奥本良博, 西本浩司, 井原史朗

    第 28 回 溶接学会四国支部講演大会  2023.3 

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    Event date： 2023.3

    Language：Japanese  

    Venue：日本溶接協会四国地区溶接技術検定委員会   Country：Japan  

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  • 結晶性金属材料におけるき裂進展過程のナノスケール解析

    @井原史朗，@斉藤光，#木原孝太郎，@村山光宏

    日本材料学会第8回材料WEEK  2022.10 

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    Event date： 2022.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：京都テルサ   Country：Japan  

  • EELSおよび4D-STEMを用いた結晶性金属材料の引張その場観察における破壊過程の解析

    @井原史朗,@斉藤光，#木原孝太郎，@村山光宏

    日本物理学会 2022 年秋季大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京工業大学大岡山キャンパス   Country：Japan  

  • 高速STEM観察技術による加熱中組織のその場観察

    @井原史朗，@斉藤光

    九州大学－日本製鉄研究交流会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：日本製鉄 ㈱ 富津ＲＥセンター 本館ホール   Country：Japan  

  • 高速STEM撮像における深層学習ノイズフィルタの開発およびその「その場観察」への応用

    @井原史朗，@斉藤光，#義永瑞雲，@Lavakumar Avala，@村山光宏

    CREST辻チーム研究会  2022.7 

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    Event date： 2022.7

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：石川県政記念「しいのき迎賓館」   Country：Japan  

  • 超低ドーズ四次元解析に向けたその場加熱STEMトモグラフィーの開発

    #義永瑞雲，@斉藤光，@井原史朗，@宮崎裕也，@馬場則男，#和田皓太，@波多聰，@村山光宏

    日本顕微鏡学会第78回学術講演会  2022.5 

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    Event date： 2022.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：ビッグパレットふくしま   Country：Japan  

  • その場観察に向けた高速STEM撮像における深層学習ノイズフィルタの開発

    @井原史朗，@斉藤光，#義永瑞雲，@村山光宏

    日本顕微鏡学会第78回学術講演会  2022.5 

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    Event date： 2022.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：ビッグパレットふくしま   Country：Japan  

  • 機械学習を活用した電子顕微鏡観察手法の開発と実践 Invited

    @井原史朗

    第 56 回日本塑性加工学会高エネルギー速度加工分科会  2021.9 

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    Event date： 2021.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：崇城大学(オンライン)   Country：Japan  

  • 機械学習ノイズフィルタリングによる高速走査透過電子顕微鏡(STEM)像の高精細化

    #義永 瑞雲，@井原 史朗，@斉藤 光，@村山 光宏

    日本機械学会 第34 回計算力学講演会  2021.9 

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    Event date： 2021.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：北海道大学(オンライン)   Country：Japan  

  • 機械学習ノイズフィルタリングを援用した走査透過電子顕微鏡 (STEM)観察の応用

    @井原 史朗，@斉藤 光，#趙 一方，#鯉池 卓，#仲間 陸人，#義永 瑞雲，@光原 昌寿，@波多 聰，@村山光宏

    日本機械学会 第34 回計算力学講演会  2021.9 

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    Event date： 2021.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：北海道大学(オンライン)   Country：Japan  

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MISC

  • 透過電子顕微鏡による金属ナノ粒子焼結のその場3次元観察 Reviewed

    @井原 史朗, @斉藤 光, @波多 聰, @村山 光宏

    日本結晶成長学会誌   2024.4

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    DOI： https://doi.org/10.19009/jjacg.51-1-03

  • In-situ heating-and-electron tomography for materials research: from 3D (in-situ 2D) to 4D (in-situ 3D) Reviewed

    @Satoshi Hata, @Shiro Ihara, @Hikaru Saito, @Mitsuhiro Murayama

    Microscopy   2024.2

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    Language：English   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    DOI： https://doi.org/10.1093/jmicro/dfae008

  • 深層学習を援用した高速走査透過電子顕微鏡法によるその場観察および3次元観察 Reviewed

    @井原史朗，@斉藤光，@村山光宏

    材料   2023.9

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    DOI： https://doi.org/10.2472/jsms.72.631

  • 転位動力学法の概説とこれからと Reviewed

    @井原史朗

    まてりあ   2022.5

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    Language：Japanese  

    DOI： https://doi.org/10.2320/materia.61.291

  • TEM/STEM トモグラフィーによる最近の研究 Reviewed

    @波多聰, #趙一方, @井原史朗, @斉藤光, @光原昌寿, @村山光宏

    まてりあ   2022.2

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

Professional Memberships

  • The Japan Society of Mechanical Engineers

  • The Society of Materials Science, Japan

  • The Japan Society for Technology of Plasticity

  • The Japanese Society of Microscopy

  • The Physical Society of Japan

  • The Japanese Society of Microscopy

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  • The Physical Society of Japan

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  • The Japan Society of Mechanical Engineers

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  • The Society of Materials Science, Japan

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  • The Japan Society for Technology of Plasticity

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Research Projects

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Class subject

  • 分子の科学

    2023.4 - 2023.9   First semester

  • 分子の科学

    2022.4 - 2022.9   First semester

Media Coverage

  • ナノ粒子焼結の論文（In situ electron tomography for the thermally activated solid reaction of anaerobic nanoparticles）の内容が紹介された． Newspaper, magazine

    日本経済新聞  https://www.nikkei.com/article/DGXZRSP656510_S3A600C2000000/  2023.6

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    ナノ粒子焼結の論文（In situ electron tomography for the thermally activated solid reaction of anaerobic nanoparticles）の内容が紹介された．

  • ナノ粒子焼結の論文（In situ electron tomography for the thermally activated solid reaction of anaerobic nanoparticles）の内容が紹介された． Newspaper, magazine

    日刊工業新聞  https://www.nikkan.co.jp/articles/view/00675492  2023.6

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