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J-GLOBAL ID：200901030402750426 Update date: Mar. 21, 2025

Nagaya Tomoyuki

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Affiliation and department：
Job title： Professor

Research field (2)： Bio-, chemical, and soft-matter physics , Mathematical physics and basic theory

Research keywords (3)： Physics in Liquid Crystals , 非線形動力学 , Pattern Formation

Research theme for competitive and other funds (28)：

2024 - 2026 電場で誘起される液晶の自発流れの成長機構の解明
2022 - 2026 Growth mechanism of spontaneous flow of liquid crystals induced by electric field
2022 - 2025 Rheology of Charged Colloidal Suspensions: Anankeon Dynamics and Electroviscosity
2020 - 2023 電場下で負の粘性を示す液晶材料の探索
2018 - 2022 Negative viscosity induced by electroconvection in a nematic liquid crystal

2015 - 2018 Rheological properties of turbulence transition in a liquid crystal under electric field.

2013 - 2018 Fluctuation and Rheology of Soft Matter in Nonequilibrium Steady States

2012 - 2016 Controlling electro-convection in a liquid crystal cell with a photoconductive crystal

2012 - 2016 Stochastic resonance and synchronization in a liquid crystal light valve with an optical feedback

2012 - 2015 Experimental Study on Generalized Langevin Description of Spatiotemporal Chaos

2010 - 2012 Orientational fluctuations of nematic liquid crystals under shear flow

2009 - 2011 Rheology and topological defects in dissipative structures in liquid crystals

2008 - 2010 ESR study of ferroic crystals under the severe conditions like phase transition and domain switching by means of the electromagnetic horn type ESR apparatus

2007 - 2010 Biomorphic functional & control methods using chaos of neural network model and their implementation to robots or other hardware

2007 - 2008 液晶光バルブにおける局所構造のダイナミクス

2006 - 2008 Nonlinear pattern dynamics and chaos synchronization in a liquid crystal light valve

2004 - 2006 Control and Information Processing Functions using Chaotic Dynamics in Neural Network Model and Cellular Automata

2003 - 2004 Observation of One-dimensional Spinodal Decomposition in a Liquid Crystal

2001 - 2002 動的画像処理による液晶のソフトモード乱流の時空揺らぎの研究

1999 - 2000 動的画像処理による液晶の電気流体力学的対流の時空揺らぎの研究

1997 - 1998 コレステリック液晶におけるフィンガーパターンの成長に関する研究

1996 - 1996 非相溶混合流体を用いた新しい電気粘性流体の研究

1996 - 1996 非相溶ポリマーブレンドのモルフォロジーと電気粘性効果

1995 - 1996 Development of Transient Viscosity Measurement Method and Improvement of Polymer-Blended Electrorheological Fluids

1995 - 1995 液晶の電気流体力学的対流のダイナミクスの研究

1995 - 1995 液晶の微視的な配向状態と巨視的なレオロジー特性

1993 - 1993 液晶を利用した2次元XY系におけるトポロジカル・ディフェクトの動力学の研究

1992 - 1992 液晶におけるディスクリネーションのつなぎ換えに関する研究

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Papers (79)：

Hiroyuki Onomura, Kaichi Isobe, Miku Nakano, Tsubasa Morioka, Yuji Sasaki, Satoshi Tanda, Tomoyuki Nagaya, Hiroshi Orihara. Numerical Simulation on Coarsening of Nematic Texture with a Periodic Arrangement of Defects. Journal of the Physical Society of Japan. 2025. 94. 4. 044603-1-044603-5
Jong-Hoon Huh, Takumu Higashi, Tatsuya Yamasaki, Tomoyuki Nagaya. Phase Transition Temperatures of a Nematic Liquid Crystal in the Presence of Noise and DC Fields. Journal of the Physical Society of Japan. 2024. 93. 4. 044601-1-044601-3
Tomoyuki NAGAYA, Takeo KATAYAMA, Mihoko KONISHI, Takafumi IWAKI, Yoshihiko KOBAYASHI, Takehito KIKUCHI. Digital Transformation of Student Experiments Applicable for Preventing COVID-19 Infection. Journal of JSEE. 2023. 71. 2. 2_120-2_124
Jong-Hoon Huh, Tomoyuki Nagaya. Voltage Dependence of Phase Transition Temperatures of a Nematic Liquid Crystal under AC Field-Driven Electroconvection. Journal of the Physical Society of Japan. 2022. 91. 9. 094604-1-094604-5
Tomoyuki NAGAYA, Takehito KIKUCHI, Takeo KATAYAMA, Shigeru KITANISHI, Takafumi IWAKI, Ryuji KONDO. An e-learning System for Evaluating Analysis Results Based on Experimental Data. Journal of JSEE. 2022. 70. 2. 2_130-2_135

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MISC (142)：

Orihara Hiroshi, Yoshihara Koki, Nagaya Tomoyuki. Simulation of electric-field-induced turbulence in liquid crystals. Proceedings of Japanese Liquid Crystal Society Annual meeting. 2023. 2023. PA06
小林史明, 佐々木裕司, 藤井修治, 折原宏, 長屋智之. Spontaneous shear flow and self-oscillation generated by electric-field-induced turbulence in liquid crystals. 日本物理学会講演概要集(CD-ROM). 2020. 75. 1
後藤善友, 後藤善友, 猪部篤矢, 折原宏, 長屋智之. 光フィードバック下の液晶光バルブにおける確率共鳴 III. 日本物理学会講演概要集(CD-ROM). 2019. 74. 1. ROMBUNNO.14pG216-6
Goto, Yoshitomo, Nagaya, Tomoyuki, Orihara, Hiroshi. Observation of Stochastic Resonance Induced by Dichotomous Noise in a Liquid Crystal Light Valve with Optical Feedback. APS March meeting, March 4-8, 2019, Boston, Massachusetts, USA. 2019
小林史明, 佐々木裕司, 藤井修治, 折原宏, 長屋智之. イオンをドープした液晶EBBAにおける負の粘性. レオロジー討論会講演要旨集. 2019. 67th

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Books (2)：

Physics Laboratory
2018
Formation, Dynamics and Statistics of Patterns
World Scientific 1993

Lectures and oral presentations (3)：

Image Analysis for Mean Flow in Negative Viscous State Induced by an Electric Field
(the 10th Japanese-Italian Workshop on Liquid Crystals (JILCW2024) 2024)
Numerical Simulation on Coarsening of Nematic Texture with a Periodic Arrangement of Defects
(the 10th Japanese-Italian Workshop on Liquid Crystals (JILCW2024) 2024)
Discovery of negative viscosity state in liquid crystals under an electric field
(2nd International Conference on Optics and Photonics, 2020)

Education (1)：

1988 - 1990 名古屋大学大学院工学研究科博士後期課程結晶材料工学専攻

Professional career (1)：

Doctor of Engineering (Nagoya University)

Work history (9)：

2016/04 - 現在 Oita University Faculty of Science and Technology Professor
2006/04 - 2016/03 Oita University
2011/07 - 2011/08 Nice University Institute Non-Lin ́eaire de Nice
2002/04 - 2006/03 Okayama University Faculty of Engineering Associate Professor
2002/04 - 2002/12 Nice University Institute Non-Lin ́eaire de Nice

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Association Membership(s) (2)：

Japan Liquid Crystal Society , The Physical Society of Japan

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