Updated on 2026/01/15

写真a

 
NAKANISHI Masahiro
 
Scopus Paper Info  
Total Paper Count: 0  Total Citation Count: 0  h-index: 10

Citation count denotes the number of citations in papers published for a particular year.
Organization
Faculty of Engineering Department of Electrical Engineering Assistant Professor
Graduate School of Engineering Master's program Electrical Engineering Assistant Professor
Title
Assistant Professor
Homepage
http://www.researcherid.com/rid/J-9497-2014
External link

Degree

  • 博士（理学）

Research Interests

  • 広帯域誘電分光

  • ガラス転移

  • 生体分子

  • 水

  • 分子運動

Research Areas

  • Others / Other  / chemical physics

  • Others / Other  / Living organism physics

Education

  • 平成18年04月～平成20年03月： 北海道大学 理学院 量子理学専攻 修士課程 修了 平成20年04月～平成22年09月： 北海道大学 理学院 量子理学専攻 博士課程 修了

  • Hokkaido University

Research History

  • University of Tennessee, Department of Chemistry 及び Oak Ridge National Laboratory, Chemical Sciences Division (米国) 博士研究員

  • 平成25年04月～平成25年12月：

  • 北里大学 理学部 化学科 助教

  • 平成26年01月～平成27年03月：

  • The Hebrew University of Jerusalem, Department of Applied Physics (イスラエル) 博士研究員

  • 平成27年04月～現在：

  • 福岡工業大学 工学部 電気工学科 助教

  • 平成22年10月～平成25年04月：

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Professional Memberships

  • 日本物理学会

Papers

  • Real-Space Local Dynamics in 1,2,3-Triazole Using Inelastic Neutron Scattering Reviewed

    Shinohara Y., Iwashita T., Nakanishi M., Liu Y., Cooper V.R., Kofu M., Nirei M., Dmowski W., Hickner M.A., Egami T.

    Journal of Physical Chemistry B   129 ( 47 )   12330 - 12337   2025.11

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    Publisher：Journal of Physical Chemistry B  

    Enhancing proton transport in polymer electrolytes is crucial for advancing next-generation solid-state batteries, yet our understanding of proton conductivity in nonaqueous environments remains limited due to a lack of atomic-scale insights. In this study, we investigated the atomic-scale dynamics of 1,2,3-triazole, a small molecule capable of dynamic hydrogen bonding, as a model system for proton hopping in nonaqueous environments. Using the real-space correlation function determined by the double Fourier transformation of inelastic neutron scattering spectra, we identified that the self-motion of protons and intermolecular dynamics occur on comparable time scales. Furthermore, we observed that the activation energy associated with the intermolecular dynamics matches the energy barrier for molecular rotations determined through Density Functional Theory calculations. These findings underscore the importance of controlling molecular dynamics at the atomic scale to control proton transport. Additionally, we demonstrated that intermolecular dynamics in systems involving protons can be studied using inelastic neutron scattering even without deuteration, thereby providing a broader avenue for studying atomic-scale dynamics in soft matter systems.

    DOI： 10.1021/acs.jpcb.5c06367

    Scopus

  • A simplified model on bound dipoles explaining anomalous temperature dependence of dielectric relaxation amplitude Reviewed

    Nakanishi M.

    Journal of Physics Communications   9 ( 4 )   2025.4

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    Authorship：Lead author,　Corresponding author   Publisher：Journal of Physics Communications  

    Normally dielectric relaxation amplitude increases as the temperature decreases. However, certain materials, such as hydrated systems and carboxylic acids, exhibit the opposite manner: i.e. the dielectric relaxation amplitude decreases with decreasing temperature. To elucidate the physical mechanism underlying this phenomenon, a simplified model consisting of a host material and surrounding small solvent molecules that bind to the host surface with a certain probability determined by the binding free energy is considered. This model is solved analytically, yielding a representation of the dielectric amplitude that follows an Arrhenius type behavior in the low temperature limit. This temperature dependence arises from the formation of antiparallel correlations between the dipole moments of solvent molecules due to geometric constraints imposed by the host. It is demonstrated that reported anomalous temperature dependence observed in hydrated proteins, hydrated lithium ions, and acetic acids can be reproduced using this model. Consequently, the universality of this type of the temperature dependence is proposed.

    DOI： 10.1088/2399-6528/adc539

    Scopus

  • Real-space local self-motion of protonated and deuterated water Reviewed

    Shinohara Y., Iwashita T., Nakanishi M., Dmowski W., Ryu C.W., Abernathy D.L., Ishikawa D., Baron A.Q.R., Egami T.

    Physical Review E   109 ( 6 )   2024.6

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    Publisher：Physical Review E  

    We report on the self-part of the Van Hove correlation function, the correlation function describing the dynamics of a single molecule, of water and deuterated water. The correlation function is determined by transforming inelastic scattering spectra of neutrons or x rays over a wide range of momentum transfer Q and energy transfer E to space R and time t. The short-range diffusivity is estimated from the Van Hove correlation function in the framework of the Gaussian approximation. The diffusivity has been found to be different from the long-range macroscopic diffusivity, providing information about local atomic dynamics.

    DOI： 10.1103/PhysRevE.109.064608

    Scopus

  • Proton Diffusion in Liquid 1,2,3-Triazole Studied by Incoherent Quasi-Elastic Neutron Scattering Reviewed

    Shinohara Y., Iwashita T., Nakanishi M., Osti N.C., Kofu M., Nirei M., Dmowski W., Egami T.

    Journal of Physical Chemistry B   128 ( 6 )   1544 - 1549   2024.2

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    Publisher：Journal of Physical Chemistry B  

    Improving the proton transport in polymer electrolytes impacts the performance of next-generation solid-state batteries. However, little is known about proton conductivity in nonaqueous systems due to the lack of an appropriate level of fundamental understanding. Here, we studied the proton transport in small molecules with dynamic hydrogen bonding, 1,2,3-triazole, as a model system of proton hopping in a nonaqueous environment using incoherent quasi-elastic neutron scattering. By using the jump-diffusion model, we identified the elementary jump-diffusion motion of protons at a much shorter length scale than those by nuclear magnetic resonance and impedance spectroscopy for the estimated long-range diffusion. In addition, a spatially restricted diffusive motion was observed, indicating that proton motion in 1,2,3-triazole is complex with various local correlated dynamics. These correlated dynamics will be important in elucidating the nature of the proton dynamics in nonaqueous systems.

    DOI： 10.1021/acs.jpcb.3c07685

    Scopus

  • The Effects of AC Electric Field on Ice Nucleation in the Super-Cooling Reviewed

    K. Takahashi, Y. Fujiwara, Y. Sawada, K. Takaki, M. Nakanishi

    IEEJ Trans   2023

  • Fracture behavior of MgO-based refractories corroded with slag by electrical pulse disintegration Reviewed

    H. Kubo, M. Nakanishi, T. Ogawa

    J. Technical Association of Refractories, Japan   42   284 - 288   2022

  • Protein hydration and its freezing phenomena: Toward the application for cell freezing and frozen food storage Reviewed

    N. Yamamoto, M. Nakanishi, R. Rajan, H. Nakagawa

    Biophys. Physbio.   18   284 - 288   2021.11

  • High-Temperature Degradation Tests on Electric Double-Layer Capacitors: The Effect of Residual Voltage on Degradation Reviewed

    T. Omori, M. Nakanishi, D. Tashima

    Materials   14   1520   2021.3

  • 電気パルス粉砕を用いたスラグ中に残存する金属鉄の選択分離 Reviewed

    久保 裕也, 中西 真大

    鉄と鋼   107   604 - 615   2021.3

  • Modeling of Equivalent Circuit Analysis of Degraded Electric Double-Layer Capacitors Reviewed

    T. Omori, M. Nakanishi, D. Tashima

    Materials   14   435   2021.1

  • スラグ侵食したMgO系耐火物の電気パルス粉砕による破壊挙動 Reviewed

    久保 裕也，中西 真大，小川 毅

    耐火物   72 ( 11 )   424 - 432   2020.11

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    Language：Japanese  

  • Effect of Temperature and Hydration Level on Purple Membrane Dynamics Studied Using Broadband Dielectric Spectroscopy from Sub-GHz to THz Regions Reviewed

    N. Yamamoto, S. Ito, M. Nakanishi, E. Chatani, K. Inoue, H. Kandori, K. Tominaga

    J. Phys. Chem. B   122 ( 4 )   1367−1377   2018.1

  • Correlation between temperature variations of static and dynamic properties in glass forming liquids Reviewed

    D. N. Voylov, P. J. Griffin, B. Mercado, J. K. Keum, M. Nakanishi, V. N. Novikov, A. P. Sokolov

    Phys. Rev. E   94 ( 6 )   060603(R)   2016.12

  • Protein Dynamics in a Broad Frequency Range: Dielectric Spectroscopy Studies Reviewed

    M. Nakanishi, A. P. Sokolov

    J. Non-Cryst. Solid.   407   478 - 485   2015.1

  • Graphical Conversion between Compliance and Modulus, Permittivity and Electric Modulus, and Impedance and Admittance Reviewed

    M. Nakanishi

    Int. J. Spectrosc.   2014   ID538206   2014.11

  • Dynamics of Hydration Water in Sugars and Peptides Solutions Reviewed

    S. Perticaroli, M. Nakanishi, E. Pashkovski, A. P. Sokolov

    J. Phys. Chem. B   117 ( 25 )   7729 - 7736   2013.7

  • Li6La3SnMO12 (M = Sb, Nb, Ta), a Family of Lithium Garnets with High Li-Ion Conductivity Reviewed

    H. Xie, Y. Li, J. Han, Y. Dong, M. P. Paranthaman, L. Wang, M. Xu, A. Gupta, Z. Bi, C. A. Bridges, M. Nakanishi, A. P. Sokolov, J. B. Goodenough

    J. Electrochem. Soc.   159 ( 8 )   A1148–A1151   2012.7

  • No Fragile-to-strong Crossover in LiCl-H2O Solution Reviewed

    M. Nakanishi, P. Griffin, E. Mamontov, A. P. Sokolov

    J. Chem. Phys.   136 ( 12 )   124512   2012.3

  • Optimum Lithium-ion Conductivity in Cubic Li7−xLa3Hf2−xTaxO12 Reviewed

    A. Gupta, R. Murugan, M. P. Paranthaman, Z. Bi, C. A. Bridges, M. Nakanishi, A. P. Sokolov, K. S. Han, E. W. Hagaman, H. Xie, C. B. Mullins, J. B. Goodenough

    J. Power Sources   209   184 - 188   2012.3

  • Model of the Cooperative Rearranging Region for Polyhydric Alcohols Reviewed

    M. Nakanishi, R. Nozaki

    Phys. Rev. E   84   011503   2011.7

  • Systematic Study of the Glass Transition in Polyhydric Alcohols Reviewed

    M. Nakanishi, R. Nozaki

    Phys. Rev. E   83   051503   2011.5

  • New Sample Cell Configuration for Wide-Frequency Dielectric Spectroscopy: DC to Radio Frequencies Reviewed

    M. Nakanishi, Y. Sasaki, R. Nozaki

    Rev. Sci. Instrm.   81 ( 12 )   123902   2010.12

  • Dynamics and Structure of Hydrogen-bonding Glass Former: Comparison Between Hexanetriol and Sugar Alcohols Based on Dielectric Relaxation Reviewed

    M. Nakanishi, R. Nozaki

    Phys. Rev. E   81   041501   2010.4

  • High-frequency Broadband Dielectric Spectroscopy on Sugar Alcohols below Tg Reviewed

    M. Nakanishi, R. Nozaki

    J. Non-Cryst. Solid.   356   733 - 737   2010.1

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Books

MISC

  • The Effects of AC Electric Field on Ice Nucleation in the Super-Cooling of a Distilled Water

    Takahashi K., Fujiwara Y., Sawada Y., Takaki K., Nakanishi M.

    IEEJ Transactions on Electrical and Electronic Engineering   19 ( 2 )   282 - 284   2024.2

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    Publisher：IEEJ Transactions on Electrical and Electronic Engineering  

    The effects of an AC electric field on ice nucleation temperature and nucleation rate were investigated by freezing distilled water while exposing it to varied AC electric field strengths and frequencies. To eliminate the influence of ion injections and electric field concentrations at a metal electrode surface on ice nucleation, distilled water filled in resin cuvettes are used as samples. The samples are exposed to AC electric field induced by parallel plate electrodes placed outside of the cuvettes. The cuvettes and parallel plate electrodes placed in a freezer with an inside temperature fixed at −15°C. The electric field strength in the sample is 2 or 7.5 kV/m and frequency varies from 50 Hz to 10 kHz. The ice nucleation temperature and the nucleation rate of distilled water increase with increasing the electric field strength and the frequency. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

    DOI： 10.1002/tee.23965

    Scopus

  • インピーダンス分光による電気二重層キャパシタの劣化状態の把握とオンライン診断技術開発のための基礎研究

    大森 朋希，中西 真大，田島 大輔

    福岡工業大学総合研究機構研究所所報   4   7 - 13   2021.10

  • 光学結晶を参照物質として用いたマイクロ波同軸プローブ反射法

    中西 真大

    福岡工業大学総合研究機構研究所所報   2   67 - 71   2020.2

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    Language：Japanese  

  • 電気工学科の基礎的実験科目におけるレポート作成指導の取り組み

    中西 真大，北﨑 訓，鈴木 恭一，北川 二郎

    福岡工業大学 FD Annual Report   9   52 - 60   2019.7

  • ゲスト-ホスト系に見られる誘電緩和強度の異常温度依存性のモデル

    中西 真大

    福岡工業大学エレクトロニクス研究所所報   34   23 - 29   2017.10

Teaching Experience (On-campus)

  • 2024   Basic Physics

  • 2024   Introduction to Electrical Engineering

  • 2024   Mechanics I

  • 2024   Introduction to Engineering

  • 2024   Elementary Electric Experiment

  • 2024   Mechanics II

  • 2024   Graduation Study

  • 2024   Special Lecture of Applied Physics II

  • 2023   Basic Mathematics

  • 2023   Basic Physics

  • 2023   Introduction to Electrical Engineering

  • 2023   Mechanics I

  • 2023   Elementary Electric Experiment

  • 2023   Mechanics II

  • 2023   Graduation Study

  • 2023   Practices for Writing English Papers

  • 2023   Special Lecture of Applied Physics II

  • 2022   Basic Mathematics

  • 2022   Mechanics I

  • 2022   Basic Physics

  • 2022   Introduction to Electrical Engineering

  • 2022   Elementary Electric Experiment

  • 2022   Mechanics II

  • 2022   Graduation Study

  • 2022   Practices for Writing English Papers

  • 2022   Special Lecture of Applied Physics II

  • 2021   Basic Mathematics

  • 2021   Mechanics I

  • 2021   Introduction to Electrical Engineering

  • 2021   Basic Physics

  • 2021   工学概論

  • 2021   Elementary Electric Experiment

  • 2021   Mechanics II

  • 2021   Graduation Study

  • 2021   Practices for Writing English Papers

  • 2021   Special Lecture of Applied Physics II

  • 2020   Basic Physics

  • 2020   Introduction to Electrical Engineering

  • 2020   Basic Mathematics

  • 2020   Mechanics I

  • 2020   工学概論

  • 2020   Elementary Electric Experiment

  • 2020   Mechanics II

  • 2020   Graduation Study

  • 2020   Practices for Writing English Papers

  • 2020   Special Lecture of Applied Physics II

  • 2019   Introduction to Electrical Engineering

  • 2019   Mechanics I

  • 2019   Basic Mathematics

  • 2019   Basic Physics

  • 2019   工学概論

  • 2019   Elementary Electric Experiment

  • 2019   Mechanics II

  • 2019   Graduation Study

  • 2019   Practices for Writing English Papers

  • 2019   Special Lecture of Applied Physics II

  • 2018   Basic Physics

  • 2018   Introduction to Electrical Engineering

  • 2018   Basic Mathematics

  • 2018   Mechanics I

  • 2018   Elementary Electric Experiment

  • 2018   Physics II

  • 2018   Graduation Study

  • 2018   Practices for Writing English Papers

  • 2018   Special Lecture of Applied Physics II

  • 2017   Introduction to Electrical Engineering

  • 2017   Physics I

  • 2017   Basic Mathematics A

  • 2017   Basic Physics

  • 2017   Elementary Electric Experiment

  • 2017   Physics II

  • 2017   Graduation Study

  • 2017   Practices for Writing English Papers

  • 2017   Special Lecture of Applied Physics II

  • 2016   Basic Physics

  • 2016   Introduction to Electrical Engineering

  • 2016   Basic Mathematics A

  • 2016   Physics I

  • 2016   Elementary Electric Experiment

  • 2016   Physics II

  • 2016   Graduation Study

  • 2016   Practices for Writing English Papers

  • 2016   Special Lecture of Applied Physics I

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