Details of the Researcher

PHOTO

Eita Shoji
Section
Graduate School of Engineering
Job title
Associate Professor
Degree

  • 博士（工学）（東北大学）

  • 修士（工学）（東北大学）

Committee Memberships 18

  • The 7th International Symposium on Innovative Materials and Processes in Energy Systems　Organizing Committee

    2024 - Present

  • 日本機械学会　熱工学コンファレンス2025 実行委員

    2024 - Present

  • 日本機械学会　運営委員会委員

    2024 - Present

  • 日本機械学会　代議員

    2024 - Present

  • 化学工学会 粒子・流体プロセス部会 熱物質流体工学分科会　幹事

    2020 - Present

  • 日本機械学会　東北支部第60期総会・講演会 実行委員

    2024 - 2025

  • 日本伝熱学会　協議員

    2023 - 2025

  • 日本伝熱学会東北支部　協議員

    2023 - 2025

  • 日本伝熱学会東北支部　幹事

    2023 - 2025

  • 日本伝熱学会　広報委員

    2022 - 2024

  • 化学工学会　化学工学誌トピックス委員

    2021 - 2022

  • Asian Thermophysical Properties Conference 2022 Local Committee

    2020 - 2022

  • 化学工学会東北支部　運営委員

    2017 - 2020

  • 日本熱物性学会　評議員

    2017 - 2018

  • The 9th International Conference on Flow Dynamics, the Eighth International Students/Young Birds Seminar on Multi-Scale Flow　Co-organizer

    2012 - 2012

  • 日本流体力学会　日本流体力学会年会2024 実行委員

    2024 -

  • 日本伝熱学会　第58回日本伝熱シンポジウム 実行委員

    2021 -

  • The Japan Society of Microgravity Application　JASMAC-31実行委員

    2019 -

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Professional Memberships 4

  • Japan Society of Thermophysical Properties

  • The Society of Chemical Engineers, Japan

  • The Heat Transfer Society of Japan

  • The Japan Society of Mechanical Engineers

Research Interests 2

  • 化学工学

  • 熱工学、化学工学

Research Areas 2

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Transfer phenomena and unit operations /

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Thermal engineering /

Awards 19

  1. 日本伝熱学会登鯉賞

    2025/05　日本伝熱学会

  2. インテリジェント・コスモス奨励賞

    2025/05　インテリジェント・コスモス学術振興財団

  3. コニカミノルタ画像科学奨励賞

    2024/03　コニカミノルタ科学技術振興財団

  4. 第62回原田研究奨励賞

    2022/07　本多記念会

  5. 化学工学会研究奨励賞（實吉雅郎記念賞）

    2022/03　化学工学会

  6. 化学工学会粒子・流体プロセス部会シンポジウム賞（奨励賞）

    2022/03　化学工学会粒子・流体プロセス部会

  7. 第27回青葉工学研究奨励賞

    2021/12　青葉工学振興会

  8. 熱工学部会賞

    2021/09　化学工学会熱工学部会

  9. 日本機械学会奨励賞（研究）

    2021/04　日本機械学会

  10. Scientific Contribution Award of the Heat Transfer Society of Japan

    2020/05　The Heat Transfer Society of Japan

  11. 熱工学部会賞

    2019/11　化学工学会熱工学部会

  12. Young Researcher Award of the Heat Transfer Society of Japan

    2018/05　The Heat Transfer Society of Japan

  13. JCEJ Outstanding Paper Award of 2018

    2018　Effect of surface modifier of nanoparticles on dewetting behaviors of polymer nanocomposite thin films

  14. 熱工学部会賞

    2016/09　化学工学会

  15. 工学研究科長賞

    2015/03　東北大学大学院工学研究科

  16. Best Presentation Award

    2014/05　The Heat Transfer Society of Japan

  17. Best Award

    2013/11　Tenth International Conference on Flow Dynamics, Ninth International Students/Young Birds Seminar on Multi-scale Flow Dynamics

  18. Outstanding Award

    2012/09　Ninth International Conference on Flow Dynamics, Eighth International Students/Young Birds Seminar on Multi-scale Flow Dynamics

  19. 学生優秀プレゼンテーション賞

    2010/05　日本伝熱学会

Show all ︎Show 5

Papers 57

  1. Transitions in intra-droplet flow and wetting governing nanoparticle deposition patterns in inkjet-printed nanofluids Peer-reviewed

    Eita Shoji, Taiga Saito, Tetsushi Biwa, Masaki Kubo, Takao Tsukada, Takaaki Tomai, Tadafumi Adschiri

    Journal of Colloid and Interface Science　699　138246　2025/12

    DOI： 10.1016/j.jcis.2025.138246 　

  2. Liquid piston Stirling engine loaded with self-rectifying turbine: Equivalent load analysis with orifice plate Peer-reviewed

    Jidai Tomihira, Hiroki Kusudo, Eita Shoji, Tetsushi Biwa, Prastowo Murti, Shinya Okuhara, Manabu Takao

    Applied Thermal Engineering　278　126937　2025/11

    DOI： 10.1016/j.applthermaleng.2025.126937 　

  3. Evaluation of interfacial affinity between surface-modified metal oxide and solvent mixture using molecular dynamics simulations Peer-reviewed

    Yuto Sato, Yoichiro Kurosawa, Takamasa Saito, Eita Shoji, Gota Kikugawa, Donatas Surblys, Atsuki Komiya, Takaaki Tomai, Masaki Kubo

    The Journal of Chemical Physics　163　(7)　2025/08/15

    Publisher: AIP Publishing

    DOI： 10.1063/5.0288662 　

    ISSN： 0021-9606

    eISSN： 1089-7690

    More details Close

    The industrial application of surface-modified nanoparticles requires controlling their colloidal stability by selecting suitable surface modifiers and solvents. Solvent mixtures can control the interaction between the nanoparticles and solvents, but the detailed mechanism is still unclear. In this study, molecular dynamics simulations were performed for an interface between a decanoic acid-modified Al2O3 and a binary mixture of organic solvents. Cyclohexane and ethanol were selected as a good solvent and a poor solvent for the modifier, respectively, and their volume fraction for preparation was varied. For any volume fraction of ethanol, ethanol was adsorbed onto the Al2O3 surface patches without modifiers. Cyclohexane was preferentially distributed around the modifier. The work of adhesion was calculated as a measure of interfacial affinity using thermodynamic integration. For systems with ethanol, the work of adhesion was significantly larger than for those with cyclohexane, owing to the strong interaction of the Al2O3 surface with the adsorbed ethanol; however, this result, that is, the obtained affinity, is not consistent with the experimental dispersion results of surface-modified nanoparticles. To focus on the interaction between modifiers and surrounding solvents, the work required to strip solvents from the modifier was calculated, excluding the contribution of adsorbed ethanol. The required work decreased after the ethanol fraction surpassed a specific threshold, indicating that the affinity can be related to the distribution of solvent species near the modifier layer. This work provides an evaluation method and insights into the effect of a solvent mixture on the interfacial affinity at the molecular level.

  4. Precursor Film Growth of 2,7-Dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) in the Smectic a Liquid Crystal Phase for High-Performance Transistor Applications Peer-reviewed

    Kanae Tsujita, Shingo Maruyama, Akira Hoshino, Taiga Saito, Eita Shoji, Kenichi Kaminaga, Yuji Matsumoto

    Langmuir　41　(32)　21816-21824　2025/08/05

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.langmuir.5c02951 　

    ISSN： 0743-7463

    eISSN： 1520-5827

  5. 実験的音響特性評価による排気ダクト延長型ガス給湯器の熱音響不安定性診断 Peer-reviewed

    高畠 耀介, 笠井 湧斗, 庄司 衛太, 琵琶 哲志

    日本燃焼学会誌　2025/06

    DOI： 10.20619/jcombsj.2405 　

  6. Optical Measurement of Mesoscale Dynamic Wetting of Nanofluid Droplets Invited

    Eita SHOJI

    Japanese Journal of Multiphase Flow　39　(1)　26-39　2025/03/15

    Publisher: The Japanese Society for Multiphase Flow

    DOI： 10.3811/jjmf.2025.t004 　

    ISSN： 0914-2843

    eISSN： 1881-5790

  7. Linear stability analysis of a combustor model with a delayed feedback tube Peer-reviewed

    Yosuke Takabatake, Yuto Kasai, Eita Shoji, Tetsushi Biwa

    Applied Energy　376　124249-124249　2024/12/15

    Publisher: Elsevier BV

    DOI： 10.1016/j.apenergy.2024.124249 　

    ISSN： 0306-2619

  8. Superspreading Wetting of Nanofluid Droplet Laden with Highly Dispersed Nanoparticles Peer-reviewed

    Eita Shoji, Akira Hoshino, Tetsushi Biwa, Masaki Kubo, Takao Tsukada, Takaaki Tomai, Tadafumi Adschiri

    Langmuir　40　26509-26516　2024/12/02

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.langmuir.4c03347 　

    ISSN： 0743-7463

    eISSN： 1520-5827

  9. Experimental study on liquid piston Stirling engine combined with self-rectifying turbine Peer-reviewed

    Jidai Tomihira, Eita Shoji, Tetsushi Biwa, Prastowo Murti, Shinya Okuhara, Manabu Takao

    The Journal of the Acoustical Society of America　156　(2)　792-799　2024/08/01

    Publisher: Acoustical Society of America (ASA)

    DOI： 10.1121/10.0028132 　

    ISSN： 0001-4966

    More details Close

    A liquid piston Stirling engine is an external combustion engine that uses air and water under atmospheric pressure as its working fluids. Resulting from its uncomplicated design and the capacity to operate under relatively low temperature differentials of less than 100 °C, it has attracted considerable attention in recent years. This paper presents the fundamental characteristics of the liquid piston engine combined with a self-rectifying turbine for the advancement of thermal generators. When the turbine is installed in the water region rather than in the air region, it exhibits unidirectional rotation with a rotational speed directly proportional to the velocity amplitude of the reciprocating axial flow. Additionally, the acoustic impedance within the duct section containing the turbine is determined, demonstrating that the real part of impedance rises with increasing axial velocity, indicating a loss mechanism similar to the minor loss. Furthermore, the installation of the turbine results in a breakdown of symmetry in the engine oscillation mode. To maintain symmetry and improve system design, future developments must consider the installation of a turbine in each unit. These findings can pave the way to the design of liquid piston Stirling engines and their applications in thermal energy conversion.

  10. Time-resolved measurement of acoustic density fluctuations using a phase-shifting Mach-Zehnder interferometer Peer-reviewed

    Eita Shoji, Anis Maddi, Guillaume Penelet, Tetsushi Biwa

    The Journal of the Acoustical Society of America　2024/04/01

    DOI： 10.1121/10.0025537 　

  11. Molecular dynamics simulations for interfacial structure and affinity between carboxylic acid-modified Al2O3 and polymer melts Peer-reviewed

    Takamasa Saito, Masaki Kubo, Takao Tsukada, Eita Shoji, Gota Kikugawa, Donatas Surblys, Momoji Kubo

    The Journal of Chemical Physics　159　(16)　2023/10/27

    Publisher: AIP Publishing

    DOI： 10.1063/5.0169721 　

    ISSN： 0021-9606

    eISSN： 1089-7690

    More details Close

    Controlling the dispersion state of nanoparticles in a polymer matrix is necessary to produce polymer nanocomposites. The surface modification of nanoparticles is used to enable their dispersion in polymers. Moreover, molecular dynamics (MD) simulations are useful for revealing the interfacial properties between nanoparticles and polymers to aid in the design of materials. In this study, the effect of surface coverage, modifier length, and polymer species on the interfacial structure and affinity between surface-modified Al2O3 and polymer melts were investigated using all-atom MD simulations. Hexanoic, decanoic, and tetradecanoic acids were used as surface modifiers, and polypropylene (PP), polystyrene (PS), and poly (methyl methacrylate) (PMMA) were used as polymers. The work of adhesion Wadh and the work of immersion Wimm were selected as quantitative measures of affinity. Wadh was calculated using the phantom-wall approach, and Wimm was calculated by simply subtracting the surface tension of polymers γL from Wadh. The results showed that Wadh and Wimm were improved by surface modification with low coverage, owing to a good penetration of the polymer. The effect of modifier length on Wadh and Wimm was small. Whereas Wadh increased in the following order: PP < PS < PMMA, Wimm increased as follows: PMMA < PS < PP. Finally, the trend of Wadh and Wimm was organized using the Flory–Huggins interaction parameter χ between the modifier and the polymer. This study demonstrates that the interfacial affinity can be improved by tuning the surface coverage and modifier species depending on the polymer matrix.

  12. Comparison of Phase Separation Structures between Undercooled Cu–Fe and Cu–Co Alloys Solidified Under a Static Magnetic Field Peer-reviewed

    Taiki Okuyama, Rikuto Suzuki, Masaki Kubo, Takao Tsukada, Eita Shoji, Hiroyuki Fukuyama

    Journal of Chemical Engineering of Japan　56　(1)　2023/05/17

    Publisher: Informa UK Limited

    DOI： 10.1080/00219592.2023.2211117 　

    ISSN： 0021-9592

    eISSN： 1881-1299

  13. Analysis of multi-cylinder type liquid piston Stirling cooler Peer-reviewed

    Prastowo Murti, Eita Shoji, Tetsushi Biwa

    Applied Thermal Engineering　219　119403-119403　2023/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.applthermaleng.2022.119403 　

    ISSN： 1359-4311

  14. Rotational Dynamics of a Looped-Tube Thermoacoustic Engine with a Flywheel Peer-reviewed

    T. Watanabe, E. Shoji, T. Biwa, G. Penelet

    Physical Review Applied　18　044079　2022/10/31

    DOI： 10.1103/PhysRevApplied.18.044079 　

  15. Effect of surface modifier and solvent on the affinity between the surface-modified solid and organic solvent: A molecular dynamics study Peer-reviewed

    Takamasa Saito, Ryo Takebayashi, Masaki Kubo, Takao Tsukada, Eita Shoji, Gota Kikugawa, Donatas Surblys

    AIP Advances　12　(10)　105206-105206　2022/10/01

    DOI： 10.1063/5.0119681 　

    eISSN： 2158-3226

  16. Thermoacoustic modeling of Fluidyne engine with a gas-coupled water pumping line Peer-reviewed

    T. Biwa, M. Prastowo, E. Shoji

    The Journal of the Acoustical Society of America　152　(4)　2212-2219　2022/10

    Publisher: Acoustical Society of America (ASA)

    DOI： 10.1121/10.0014698 　

    ISSN： 0001-4966

    More details Close

    A Fluidyne engine is a Stirling engine with liquid pistons that automatically start to oscillate when the engine's regenerator is differentially heated to a certain level. This study investigates the thermally induced oscillations of the working gas and liquid in the Fluidyne engine using the results of the thermoacoustic theory. Further, the water pump performance of the Fluidyne engine is evaluated when it is coupled to the pumping line. The theoretical formulation and calculation results were verified by experimental tests on the onset temperature ratio and pump performance.

  17. Analysis of the linear oscillation dynamics of Fluidyne engines Peer-reviewed

    M. Ito, P. Murti, S. Tsuboi, E. Shoji, T. Biwa

    The Journal of the Acoustical Society of America　151　(2)　1133-1141　2022/02

    Publisher: Acoustical Society of America (ASA)

    DOI： 10.1121/10.0009571 　

    ISSN： 0001-4966

  18. Design guideline for multi-cylinder-type liquid-piston Stirling engine Peer-reviewed

    Prastowo Murti, Akira Takizawa, Eita Shoji, Tetsushi Biwa

    Applied Thermal Engineering　200　117635-117635　2022/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.applthermaleng.2021.117635 　

    ISSN： 1359-4311

  19. Control of the temperature responsiveness of poly(N-isopropylacrylamide-co-2-hydroxyethyl methacrylate) copolymer using ultrasonic irradiation Peer-reviewed

    Masaki Kubo, Masato Higuchi, Tomoyuki Koshimura, Eita Shoji, Takao Tsukada

    Ultrasonics Sonochemistry　79　105752-105752　2021/11

    Publisher: Elsevier BV

    DOI： 10.1016/j.ultsonch.2021.105752 　

    ISSN： 1350-4177

    eISSN： 1873-2828

  20. Measurement of dynamic wetting using phase-shifting imaging ellipsometer: comparison of pure solvent and nanoparticle suspension on film thickness profile, apparent contact angle, and precursor film length Peer-reviewed

    Eita Shoji, Takahiro Kaneko, Tatsuya Yonemura, Masaki Kubo, Takao Tsukada, Atsuki Komiya

    Experiments in Fluids　62　(10)　2021/10

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s00348-021-03296-3 　

    ISSN： 0723-4864

    eISSN： 1432-1114

  21. Erratum: "Evaluation of the work of adhesion at the interface between a surface-modified metal oxide and an organic solvent using molecular dynamics simulations" [J. Chem. Phys. 154, 114703 (2021)]. International-journal

    Takamasa Saito, Eita Shoji, Masaki Kubo, Takao Tsukada, Gota Kikugawa, Donatas Surblys

    The Journal of chemical physics　155　(6)　069901-069901　2021/08/14

    DOI： 10.1063/5.0062003 　

  22. Numerical investigation of growth interface shape and compositional distributions in SiGe crystals grown by the TLZ method in the International Space Station Peer-reviewed

    Satoshi Baba, Yoshiaki Nakamura, Masahiro Mikami, Eita Shoji, Masaki Kubo, Takao Tsukada, Kyoichi Kinoshita, Yasutomo Arai, Yuko Inatomi

    Journal of Crystal Growth　566-567　126157　2021/07

    Publisher: Elsevier BV

    DOI： 10.1016/j.jcrysgro.2021.126157 　

    ISSN： 0022-0248

  23. Evaluation of the work of adhesion at the interface between surface-modified metal oxide and organic solvent by molecular dynamics simulation Peer-reviewed

    Takamasa Saito, Eita Shoji, Masaki Kubo, Takao Tsukada, Gota Kikugawa, Donatas Surblys

    The Journal of Chemical Physics　154　(11)　114703-114703　2021/03

    Publisher: AIP Publishing

    DOI： 10.1063/5.0040900 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  24. Numerical simulation of laminar-turbulent transition in magnetohydrodynamic convection in an electromagnetically levitated molten droplet of Cu-Co alloys under a static magnetic field Peer-reviewed

    Eita Shoji, Koki Tanada, Ryuji Takahashi, Shosei Isogai, Rikuto Suzuki, Masaki Kubo, Takao Tsukada, Atsuki Komiya, Hiroyuki Fukuyama

    Metallurgical and Materials Transactions B　52　(2)　896-902　2021/02

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11663-021-02063-3 　

    ISSN： 1073-5615

    eISSN： 1543-1916

  25. Compositional Dependence of Thermal Conductivity of Molten Cu-Fe Alloy at Low Fe Contents Peer-reviewed

    Eita Shoji, Naoto Ito, Masaki Kubo, Takao Tsukada, Hiroyuki Fukuyama

    Metallurgical and Materials Transactions B　51　(6)　2504-2509　2020/12

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11663-020-01965-y 　

    ISSN： 1073-5615

    eISSN： 1543-1916

  26. In-situ visualization of heavy oil behavior in supercritical water using neutron radiography Peer-reviewed

    Eita Shoji, Takahiro Kikuchi, Koshiro Yamagiwa, Masaki Kubo, Takao Tsukada, Seiichi Takami, Katsumi Sugimoto, Daisuke Ito, Yasushi Saito

    Chemical Engineering Science　225　115816-115816　2020/11

    Publisher: Elsevier BV

    DOI： 10.1016/j.ces.2020.115816 　

    ISSN： 0009-2509

  27. Spatial structures formation of surface-modified nanoparticles in polymer nanocomposite thin films Peer-reviewed

    Naoto Kobayashi, Shogo Yagawa, Yusaku Nakamura, Masaki Kubo, Eita Shoji, Takao Tsukada, Tadafumi Adschiri

    Chemical Engineering and Processing - Process Intensification　155　108054-108054　2020/09

    Publisher: Elsevier BV

    DOI： 10.1016/j.cep.2020.108054 　

    ISSN： 0255-2701

  28. Prediction of surface tension of heavy oil based on principle of corresponding states combined with detailed composition and molecular structure analysis Peer-reviewed

    Yuichi Mukawa, Koshiro Yamagiwa, Eita Shoji, Masaki Kubo, Takao Tsukada, Shogo Teratani, Keita Katano

    Journal of the Japan Institute of Energy　99　(7)　75-81　2020/07

    DOI： 10.3775/jie.99.75 　

    ISSN： 0916-8753

  29. Corrigendum to ‘Neutron computed tomography of phase separation structures in solidified Cu-Co alloys and investigation of relationship between the structures and melt convection during solidification’ (Scripta Materialia (2020) 175 (29–32), (S1359646219305263), (10.1016/j.scriptamat.2019.08.041))

    Shoji, E., Isogai, S., Suzuki, R., Kubo, M., Tsukada, T., Kai, T., Shinohara, T., Matsumoto, Y., Fukuyama, H.

    Scripta Materialia　178　244-244　2020

    DOI： 10.1016/j.scriptamat.2019.11.038 　

    ISSN： 1359-6462

  30. Neutron computed tomography of phase separation structures in solidified Cu[sbnd]Co alloys and investigation of relationship between the structures and melt convection during solidification Peer-reviewed

    Shoji, E., Isogai, S., Suzuki, R., Kubo, M., Tsukada, T., Kai, T., Shinohara, T., Matsumoto, Y., Fukuyama, H.

    Scripta Materialia　175　29-32　2020/01

    DOI： 10.1016/j.scriptamat.2019.08.041 　

    ISSN： 1359-6462

  31. Compositional Dependence of Normal Spectral Emissivity of Molten Cu-Fe Alloy Peer-reviewed

    Shoji, E., Takahashi, R., Isogai, S., Ito, N., Kubo, M., Tsukada, T., Fukuyama, H.

    Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science　50　2454-2458　2019/10

    DOI： 10.1007/s11663-019-01638-5 　

  32. Numerical Evaluation for Measurement Conditions of Interfacial Tension between Molten Slag and Molten Iron by Oscillating Drop Technique in ISS Peer-reviewed

    Eita Shoji

    International Journal of Microgravity Science Application　36　(2)　360200　2019/04/30

  33. Experimental evaluation of thermal radiation effects on natural convection with a Rayleigh number of 108–109 by using an interferometer Peer-reviewed

    Takuma Kogawa, Eita Shoji, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

    International Journal of Heat and Mass Transfer　132　1239-1249　2019/04

    DOI： 10.1016/j.ijheatmasstransfer.2018.11.162 　

    ISSN： 0017-9310

  34. Flow visualization of heavy oil in a packed bed using real-time neutron radiography Peer-reviewed

    Eita Shoji, Koshiro Yamagiwa, Masaki Kubo, Takao Tsukada, Seiichi Takami, Katsumi Sugimoto, Daisuke Ito, Yasushi Saito, Shogo Teratani

    Chemical Engineering Science　196　425-432　2019/03/16

    DOI： 10.1016/j.ces.2018.11.021 　

    ISSN： 0009-2509

  35. Effects of vertical, horizontal and rotational magnetic fields on convection in an electromagnetically levitated droplet Peer-reviewed

    Feng, L., Shi, W.-Y., Shoji, E., Kubo, M., Tsukada, T.

    International Journal of Heat and Mass Transfer　130　787-796　2019/03

    DOI： 10.1016/j.ijheatmasstransfer.2018.10.101 　

  36. Numerical Simulation of Structure Formation of Surface-Modified Nanoparticles during Solvent Evaporation Peer-reviewed

    Usune Shin, Taro Takahashi, Masaki Kubo, Eita Shoji, Takao Tsukada, Osamu Koike, Rei Tatsumi, Masahiro Fujita, Tadafumi Adschiri

    Journal of Chemical Engineering Japan　52　(8)　680-693　2019

    DOI： 10.1252/jcej.19we012 　

    ISSN： 0021-9592

  37. Three-step phase-shifting imaging ellipsometry to measure nanofilm thickness profiles Peer-reviewed

    Shoji, E., Komiya, A., Okajima, J., Kubo, M., Tsukada, T.

    Optics and Lasers in Engineering　112　145-150　2019/01

    DOI： 10.1016/j.optlaseng.2018.09.005 　

  38. Visualization of heat and mass transfer near the formation and dissociation interface of CO2 hydrate with high-speed phase-shifting interferometer Peer-reviewed

    Yuki Kanda, Eita Shoji, Lin Chen, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

    International Heat Transfer Conference　2018-August　8767-8774　2018

    ISSN： 2377-424X

  39. Effect of surface modifier of nanoparticles on dewetting behaviors of polymer nanocomposite thin films Peer-reviewed

    Takumi Kato, Yang Liu, Yuuta Murai, Masaki Kubo, Eita Shoji, Takao Tsukada, Seiichi Takami, Tadafumi Adschiri

    Journal of Chemical Engineering of Japan　51　(3)　282-288　2018

    Publisher: Society of Chemical Engineers, Japan

    DOI： 10.1252/jcej.17we241 　

    ISSN： 0021-9592

  40. Measurement of temperature difference and transient flow of natural convection influenced by thermal radiation Peer-reviewed

    庄司 衛太, Eita Shoji, 論文 - researchmap.html

    Proceedings of the 11th Pacific Symposium on Flow Visualization and Image Processing　PSFVIP11-083　2017/12

  41. Thermal Conductivity Measurement of Molten Cu-Co Alloy Using an Electromagnetic Levitator Superimposed with a Static Magnetic Field Peer-reviewed

    Yuki Nakamura, Ryuji Takahashi, Eita Shoji, Masaki Kubo, Takao Tsukada, Masahito Uchikoshi, Hiroyuki Fukuyama

    Metallurgical and Materials Transactions B　48　(6)　3213-3218　2017/12

    DOI： 10.1007/s11663-017-1103-9 　

    ISSN： 1073-5615

    eISSN： 1543-1916

  42. Measurement of transient heat transfer in vicinity of gas–liquid interface using high-speed phase-shifting interferometer Peer-reviewed

    Yuki Kanda, Eita Shoji, Lin Chen, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

    International Communications in Heat and Mass Transfer　89　57-63　2017/12

    DOI： 10.1016/j.icheatmasstransfer.2017.09.020 　

    ISSN： 0735-1933

  43. Experimental study of methane hydrate dissociation and gas production behaviors under depressurization Peer-reviewed

    Hikaru Yamada, Lin Chen, Guillaume Lacaille, Eita Shoji, Junnosuke Okajima, Atuki Komiya, Shigenao Maruyama

    International Journal of Mechanical Engineering and Robotics Research　6　(2)　140-146　2017

    Publisher: International Journal of Mechanical Engineering and Robotics Research

    DOI： 10.18178/ijmerr.6.2.140-146 　

    ISSN： 2278-0149

  44. Numerical analysis of core-scale methane hydrate dissociation dynamics and multiphase flow in porous media Peer-reviewed

    Lin Chen, Hikaru Yamada, Yuki Kanda, Guillaume Lacaille, Eita Shoji, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

    Chemical Engineering Science　153　221-235　2016/10

    DOI： 10.1016/j.ces.2016.07.035 　

    ISSN： 0009-2509

    eISSN： 1873-4405

  45. Estimation and measurement of permeability inside methane hydrate mimicking porous media Peer-reviewed

    Guillaume Lacaille, Hikaru Yamada, Eita Shoji, Lin Chen, Hiroki Gonome, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

    Journal of Fluid Science and Technology　11　JFST0031-JFST0031　2016/02

    DOI： 10.1299/jfst.2016jfst0031 　

  46. Experimental Evaluation of Heat and Mass Transfer in a Mimicked Methane Hydrate Reservoir Peer-reviewed

    Guillaume Lacaille, Hikaru Yamada, Hiroki Gonome, Eita Shoji, Lin Chen, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

    Proceedings of the First Pacific Rim Thermal Engineering Conference　1-5　2016

  47. Visualization Of Transient Mass Transfer During Methane Hydrate Dissociation Using High-Speed Phase-Shifting Interferometer Peer-reviewed

    Yuki Kanda, Eita Shoji, Junnosuke Okajima, Atsuki Komiya, Lin Chen, Hikaru Yamada, Shigenao Maruyama

    Proceedings of The 27th International Symposium on Transport Phenomena　ISTP27-127　2016

  48. High-speed phase-shifting interferometry using triangular prism for time-resolved temperature measurement Peer-reviewed

    Eita Shoji, Atsuki Komiya, Junnosuke Okajima, Hiroshi Kawamura, Shigenao Maruyama

    Applied Optics　54　(20)　6297-6304　2015/07

    DOI： 10.1364/AO.54.006297 　

    ISSN： 1559-128X

    eISSN： 2155-3165

  49. Quantitative visualization of boundary layers by developing quasi-common-path phase-shifting interferometer Peer-reviewed

    Eita Shoji, Ryota Nakaoku, Atsuki Komiya, Junnosuke Okajima, Shigenao Maruyama

    Experimental Thermal and Fluid Science　60　231-240　2015/01

    DOI： 10.1016/j.expthermflusci.2014.08.016 　

    ISSN： 0894-1777

    eISSN： 1879-2286

  50. Quantitative and High-speed Measurement of Temperature Field by Phase-shifting Interferometer Peer-reviewed

    Eita Shoji, Junnosuke Okajima, Atsuki Komiya, Shuichi Moriya, Kawamura Hiroshi, Shigenao Maruyama

    Proceedings of the 16th International Symposium on Flow Visualization　ISFV16-1254　2014

  51. Quantitative visualization of boundary layers using quasi-common path phase-shifting interferometer Peer-reviewed

    Eita Shoji, Ryota Nakaoku, Atsuki Komiya, Junnosuke Okajima, Shigenao Maruyama

    Proceedings of 8th World Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics　166　2013

  52. Measurement of Boundary Layers Using Phase-Shifting Quasi Common Path Interferometer Invited Peer-reviewed

    Shigenao Maruyama, Eita Shoji, Junnosuke Okajima, Atsuki Komiya

    Proceedings of the 9th Pacific Symposium on Flow Visualization and Image Processing　37-43　2013

  53. Development of quasi common path phase-shifting interferometer for measurement of natural convection fields Peer-reviewed

    Eita Shoji, Atsuki Komiya, Junnosuke Okajima, Shigenao Maruyama

    International Journal of Heat and Mass Transfer　55　(25-26)　7460-7470　2012/12

    DOI： 10.1016/j.ijheatmasstransfer.2012.07.039 　

    ISSN： 0017-9310

  54. Development of phase-shifting interferometry for measurement of isothermal diffusion coefficients in binary solutions Peer-reviewed

    Juan F. Torres, Atsuki Komiya, Eita Shoji, Junnosuke Okajima, Shigenao Maruyama

    Optics and Lasers in Engineering　50　(9)　1287-1296　2012/09

    DOI： 10.1016/j.optlaseng.2012.03.006 　

    ISSN： 0143-8166

  55. Visualization and Measurement of Laminar Natural Convection in Square Enclosure Peer-reviewed

    Eita Shoji, Shion Kon, Atsuki Komiya, Junnosuke Okajima, Shigenao Maruyama

    Proceedings of the third International Forum on Heat Transfer　2012

  56. Temperature Distribution Mesurement in Natural Convection around Vertical Heated Flat Plate by Using Inverse Abel Transform and Phase-Shifting Interferometer Peer-reviewed

    Eita Shoji, Atsuki Komiya, Junnosuke Okajima, Shigenao Maruyama

    Proceedings of 23rd International Symposium on Transport Phenomena　166　2012

  57. Visualization and Measurement of Natural Convection around Vertical Flat Plate by Common Path Phase-Shifting Interferometer Peer-reviewed

    Eita Shoji, Atsuki Komiya, Junnosuke Okajima, Shigenao Maruyama

    Proceedings of 22nd International Symposium on Transport Phenomena　62 (USB Memory)　2011/11

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Misc. 14

  1. 化学工学年鑑2023 粒子・流体プロセス 熱物質流体工学 Invited

    庄司 衛太

    化学工学　87　(10)　2023/10

  2. 光で測るナノフルイドの動的濡れ －ナノ液膜と粒子パターン形成の相関－ Invited

    庄司 衛太

    化学工学会東北支部ニュースレター　121　2023/04

  3. Neutron CT to investigate relationship between the phase separation structures and melt convection during solidification in Cu-Co alloys

    Eita Shoji, Shosei Isogai, Rikuto Suzuki, Masaki Kubo, Tsukada Tsukada, Tetsuya Kai, Takenao Shinohara, Yoshihiro Matsumoto, Hiroyuki Fukuyama

    J-PARC Annual Report 2019 Volume 2: Materials and Life Science Experimental Facility (MLF Annual Report 2019)　57-58　2021

  4. A study on nano-scale interfacial phenomena of surface-modified nanoparticle suspensions

    Masaki Kubo, Toshiki Otsuka, Eita Shoji, Takao Tsukada, Atsuki Komiya

    Proceedings of the 20th International Symposium on Advanced Fluid Information　2020/10

  5. Evaluation of the work of adhesion at organic-modified Al2O3/organic solvent interface by molecular dynamics simulation

    Takamasa Saito, Eita Shoji, Masaki Kubo, Takao Tsukada, Gota Kikugawa, Donatas Surblys

    Proceedings of 17th International Conference on Flow Dynamics　2020/10

  6. A study on nano-scale interfacial phenomena of surface-modified nanoparticle suspensions

    Eita Shoji, Masaki Kubo, Takao Tsukada, Atsuki Komiya, Gota Kikugawa

    Proceedings of the 19th International Symposium on Advanced Fluid Information　174-175　2019/11

  7. 中性子CTによるCu-Co合金の三次元相分離構造の観察および相分離構造-融体内対流の相関

    庄司衛太, 磯谷祥世, 鈴木陸人, 久保正樹, 塚田隆夫, 甲斐哲也, 篠原武尚, 松本吉弘, TREMSIN Anton, 福山博之

    化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019

  8. 中性子イメージングの高度化

    齊藤泰司, 伊藤大介, 浅野等, 村川英樹, 杉本勝美, 塚田隆夫, 庄司衛太, 久保正樹, 梅川尚嗣, 松本亮介, 網健行, 山形豊, 森田晋也, 松嶋卯月, 沼尾達弥, 原田隆郎, 酒井卓郎, 松林征仁, 兼松学, 水田敬, 玉置昌義, 辻義之, 高見誠一

    KURNS-EKR (Web)　(3)　55‐59 (WEB ONLY)　2019/01

    ISSN： 2434-1088

  9. 濡れ現象における接触線近傍のナノスケール計測手法 Invited

    庄司 衛太

    化学工学　83　(3)　434　2019

  10. A Study on Flow Characteristics of Suspensions of Surface-modified Nanoparticles, Using Numerical Simulations

    Shin Usune, Masaki Kubo, Eita Shoji, Atsuki Komiya, Takao Tsukada

    Proceedings of the 18th International Symposium on Advanced Fluid Information (AFI-2018)　CRF-85　2018

  11. A Study on Flow Characteristics of High Concentration Nanofluids Using a Coupled Particle-Fluid Flow Simulation

    Shin Usune, Masaki Kubo, Eita Shoji, Atsuki Komiya, Takao Tsukada

    Proceedings of the 17th International Symposium on Advanced Fluid Information (AFI2017)　CRF-81　2017/11/01

  12. Visualization of Concentration Boundary Layer in the Vicinity of Methane Hydrate Dissociation

    Y. Kanda, H. Gonome, E. Shoji, J. Okajima, A. Komiya, S. Maruyama

    Abstract book of China-Japan Joint Workshop on Flow Dynamics and Transport Phenomena　17-18　2015

  13. Effect of Beam Deflection on Measurement of Boundary LayersUsing Phase-shifting Interferometer

    E. Shoji, R. Nakaoku, A. Komiya, J. Okajima, S. Maruyama

    Proceedings of Tenth International Conference on Flow Dynamics　660-661　2013

  14. Design of Interferometer System with Phase-shifting Koester Prism

    E. Shoji, A. Komiya, J. Okajima, S. Maruyama

    Proceedings of Ninth International Conference on Flow Dynamics　534-535　2012

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Industrial Property Rights 4

  1. 多機能画像取得装置およびそのプリズム

    圓山重直, 庄司衛太, 岡島淳之介, 江目 宏樹, 川村 博

    特許6576084

    Property Type: Patent

  2. 多機能画像取得装置およびケスタープリズム

    圓山重直, 庄司衛太, 岡島淳之介, 川村博, 千布善行

    特許6087705

    Property Type: Patent

  3. ナノ粒子の分布測定方法、分布測定装置、多層体の製造方法および製造装置

    庄司衛太

    Property Type: Patent

  4. 多層体及びその製造方法

    庄司 衛太, 久保 正樹, 塚田 隆夫, 阿尻 雅文

    Property Type: Patent

Research Projects 16

  1. 階層構造を有する動的濡れの解釈可能な定式化：メゾスケール計測と回帰分析の基盤構築

    庄司 衛太

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2024/04/01 - 2028/03/31

  2. ナノ流体の制御に向けた基礎輸送物性の精密評価

    横 哲, 庄司衛太, Han Chunli

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 国際共同研究加速基金(海外連携研究)

    Institution: 東北大学

    2024/09 - 2027/03

  3. 動的濡れにおけるソフトマテリアル特有の駆動力特定に向けた溶質の局在構造イメージング手法の開発

    庄司衛太

    Offer Organization: コニカミノルタ科学技術振興財団

    2024/04 - 2027/03

  4. ゆらぎで分ける技術の創出

    Offer Organization: Japan Science and Technology Agency

    System: Fusion Oriented REsearch for disruptive Science and Technology

    Institution: Tohoku Univ.

    2023/04 - 2026/03

  5. ゆらぎによる流体内成分の分離技術開拓と光計測による現象理解

    庄司 衛太

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2023/06 - 2025/03

  6. 界面の形と構造のin situ測定によるナノフルイドの超濡れ現象の解明

    Eita Shoji

    Institution: Tohoku Univ.

    2023/04 - 2025/03

  7. 音を用いた流体内成分の分離技術の開発と分離速度向上に関する研究

    Eita Shoji

    Offer Organization: SUZUKI FOUNDATION

    Institution: Tohoku Univ.

    2023/04 - 2024/03

  8. Development of low-temperature high-activity nanocatalyst with periodic aggregation using a non-equilibrium process

    2021/04 - 2024/03

  9. High-precision measurement of microscopic dynamic wetting in nanomaterial coating processes and development of estimation models

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2020/04 - 2023/03

  10. 高濃度ナノフルイドのナノ薄膜形成と有機修飾無機ナノ粒子構造との相関

    庄司衛太

    Offer Organization: 日本板硝子材料工学助成会

    2018/04 - 2021/03

  11. 位相シフトエリプソメータを用いた導電性インク塗布プロセスにおけるナノ薄膜の形成メカニズムの解明

    庄司衛太

    Offer Organization: カシオ科学振興財団

    2020/01 - 2020/12

  12. プリンテッドエレクトロニクス用ナノインクの濡れ性のミクロスコピック計測

    庄司衛太

    Offer Organization: 村田学術振興財団

    2019/10 - 2020/09

  13. Development of multi-scale phase-shifting optical system and its application to measurement of dynamic wetting of nanofluids

    Shoji Eita

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2017/04 - 2020/03

    More details Close

    Nanofluids are suspensions of nanoparticles and recently have attracted attention because the nanofluids are expected as nano-ink for printed electronics technique. In the printing process, the dynamic behavior of microscopic wetting near the contact line is important. Therefore, we developed a multi-scale phase-shifting optical system, which allows us to measure the two-dimensional thickness distribution of thin films, to elucidate microscopic wetting behaviors of nanofluids in this study. Measurement of the microscopic wetting behavior using the optical system when the nanofluid droplets move on the silicon substrate was performed. The measurement results revealed that the effects of adding nanoparticles on the characteristics of microscopic wetting behavior, such as contact angle less than 1° and precursor film length.

  14. 超臨界水雰囲気下における超重質油流動の中性子ラジオグラフィによる可視化

    庄司衛太

    Offer Organization: クリタ 水・環境科学振興財団

    2018/10 - 2019/09

  15. ナノフルイドのミクロ動的濡れ計測を目的とした位相シフト光学システム開発

    庄司衛太

    Offer Organization: 住友電工グループ社会貢献基金

    2017/04 - 2018/03

  16. 音の見える超高感度高速位相シフト干渉計システムによる流体音響現象の解明

    庄司衛太

    Offer Organization: 日本学術振興会 科学研究費助成事業 特別研究員奨励費

    System: 科学研究費助成事業

    Category: 特別研究員奨励費

    Institution: 東北大学

    2013/04 - 2015/03

    More details Close

    本研究では，新たな光学システムを提案することによる，音場の高精度可視化計測を目的としている．これまでには位相分解能の向上と大きな可視化領域の確保を目的とし，従来とは異なる光学構成および位相シフト技術を有する位相シフト干渉計を提案し，自然対流や強制対流などの現象を観察してきた．さらに位相シフト技術の高速現象への適用を目的として，新たな光学素子としてアルバプリズム，アルバプリズムが出力する画像を処理するための画像処理プログラムを開発した． 本年度はこれまでに開発してきた光学システムを統合，かつ問題点を改善することで全く新しい光学システムの構築を目指した．まず構築した光干渉計の拡大光学系をレンズ系によって構成することで光学収差を低減し，また様々な風洞へ適用できるような光学系を構築した．さらに構築した光学系は境界層のような可視化計測を行うために，同様の光学系を利用しながら大視野のみならず微小視野の可視化計測を可能としている．またアルバプリズムについては構造を簡略化し，光学収差の低減や有効視野の拡大，迷光防止といった改善を施した．画像処理プログラムについても，光学系やアルバプリズムで生じてしまった画像歪みを補正する機能などを付加し，より高精度な位相シフトデータの取得を可能とした． 上記の光学系を統合し，直径300 mmの可視化視野を有する大型位相シフト干渉計を構築した．構築した光学系で球周りの自然対流の可視化計測を行うことで，球周りの境界層や球上部のプルームを大視野で可視化し，さらに温度境界層の位相シフトデータを取得することに成功した．これにより音場の計測に必要な大視野での可視化かつ高い分解能を有する計測装置のプロトタイプが完成した．

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