Shinya WATANABEProfessor
■Researcher basic information
Organization
- College of Science Department of Sciences Mathematics and Informatics
- Graduate School of Science and Engineering（Master's Program） Major in Science
- Graduate School of Science and Engineerin（Doctoral Program） Major in Complex Systems Science
- Faculty of Basic Natural Science Domain of Mathematics and Informatic
Research Areas
Research Keyword
Degree
Educational Background
- 1991 - 1995, Massachusetts Institute of Technology, Department of Mathematics, Applied Mathematics
- 1988 - 1991, University of Tokyo, Faculty of Engineering, Mechanical (Marine) Engineering
- 1989 - 1990, University of Illinois, Graduate School, Department of Mathematics
- 1984 - 1988, The University of Tokyo, The Faculty of Engineering, Department of Mechanical (Marine) Engineering
Career
- Apr. 2021, Faculty of Science, Ibaraki University, Professor
- Jul. 1998, Associate Professor, Mathematical Sciences, Ibaraki University
- Sep. 1997 - Jun. 1998, postdoctoral fellow, Institute for Mathematics & its Applications (IMA), University of Minnesota
- Sep. 1995 - Aug. 1997, postdoctoral fellow, Center for Chaos & Turbulence (CATS), Niels Bohr Insititute (NBI), University of Copenhagen
■Research activity information
Paper
- Performance improvement of a micro-structured gas separator utilizing the Soret effect
Takeshi KYODA; Takumi SAIKI; Sohei MATSUMOTO; Shinya WATANABE; Naoki ONO, Japan Society of Mechanical Engineers
Journal of Thermal Science and Technology, 01 Jan. 2022, [Reviewed] - Separation of a binary gas mixture by thermal diffusion in a two-dimensional cascade of many small cavities
Takumi Saiki; Naoki Ono; Sohei Matsumoto; Shinya Watanabe, Last, A new method for separating a binary gas mixture, such as hydrogen and carbon dioxide, is proposed and investigated numerically and experimentally. As a pressure driven flow of the mixture goes through a two-dimensional Burgers cascade, the components are separated due to thermal diffusion and the amplifying effect of the cascade. Unlike traditional cascades in isotope separation, active elements like pumps are absent. The device is made thin enough so that the flow and the concentration distribution reaches an equilibrium within each cell. We have observed separation of up to about 9% in hydrogen concentration in our prototype array consisting of over 19,000 cavities placed under a 160-degree temperature difference., Elsevier
International Journal of Heat & Mass Transfer, Dec. 2020, [Reviewed] - Burgers equation with no-flux boundary conditions and its application for complete fluid separation
Shinya Watanabe; Sohei Matsumoto; Tomohiro Higurashi; Naoki Ono
PHYSICA D-NONLINEAR PHENOMENA, Sep. 2016, [Reviewed] - A microfluidic device with a large-scale network structure for,high-performance fluid separation
Sohei Matsumoto; Shinya Watanabe; Tomohiro Higurashi; Naoki Ono, A micro fluidic device to realize the new fluid separation method, in which both high concentration and high yield can be achieved by constructing a network of numerous limited-performance separator elements, was designed and fabricated for the purpose of proof of concept. A hexagonal separator unit driven by potential gradient was proposed, enabling simultaneous fabrication of the large number of separator units and their connection required to obtain the desired concentration profile. A prototype device consisting of 36×360 separator units was fabricated by MEMS technology with silicon and glass substrates. A thermophoretic separation experiment using fluorescent polymer beads/water dispersion was successfully performed by the developed device., 日本機械学会
第 7 回マイクロ・ナノ工学シンポジウム講演論文集, 29 Oct. 2015 - Almost Complete Separation of a Fluid Component from a Mixture Using Burgers Networks of Microseparators
Shinya Watanabe; Sohei Matsumoto; Tomohiro Higurashi; Yuya Yoshikawa; Naoki Ono
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Apr. 2015, [Reviewed] - A constrained variational model for radial symmetry breaking
Shinya Watanabe, Lead, A simple constrained minimization problem with an integral constraint describes a symmetry breaking of a circular front around a point source. As a single control parameter, the total flux φ from the source, is varied, apparently polygonal solutions with an arbitrary number of corners m are shown to bifurcate from the circular solution. Our asymptotic analysis shows that the branches with m ≥ 3 bifurcate supercritically at φ = π(m2 + 2) and continue as φ → ∞ whereas those with m = 1 or 2 bifurcate subcritically and are terminated at φ = 3π and 4π, respectively. The second variation can be evaluated directly for the circular state which is proven to be the minimizing solution only up to φ = 3π., College of Science, Ibaraki University
Mathematical Journal of Ibaraki University, 01 Oct. 2013, [Reviewed] - Model for polygonal hydraulic jumps
Erik A. Martens; Shinya Watanabe; Tomas Bohr
PHYSICAL REVIEW E, Mar. 2012, [Reviewed] - Study and Development of a Mini-Tube Gas Separator Utilizing the Soret Effect
Shunsuke Kuwatani; Shinya Watanabe; Naoki Ono
JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, 2012, [Reviewed] - A simplified model for flows with eddies in symmetrically expanding channels
Shinya Watanabe; Vakhtang Putkaradze, Corresponding
PHYSICS LETTERS A, Oct. 2007, [Reviewed] - Integral methods for shallow free-surface flows with separation
S Watanabe; Putkaradze, V; T Bohr, Lead
JOURNAL OF FLUID MECHANICS, Apr. 2003, [Reviewed] - Cover illustration: Polygonal hydraulic jumps
Clive Ellegard; Adam E.Hansen; Anders Haning; Kim Hansen; Adam Marcussen; Tomas Bohr; Jonas L.Hansen; Shinya Watanabe
Nonlinearity, 1999, [Reviewed] - Dynamics of kinks and vortices in Josephson-junction arrays
Herre S.J. van der Zant; Shinya Watanabe, Corresponding
in ``Pattern Formation in Continuous and Coupled Systems'' (eds. M.Golubitsky, D.Luss, \& S.H.Strogatz, Springer), 1999, [Reviewed] - Circuit models for arrays of Josephson oscillators with loads
Enrique Trias; Terry P. Orlando; Amy E. Duwel; Shinya Watanabe
IEEE Transactions on Applied Superconductivity, 1999, [Reviewed] - Row-switched states in two-dimensional underdamped Josephson-junction arrays
Mauricio Barahona; Shinya Watanabe
Physical Review B, 1998, [Reviewed] - Creating corners in kitchen sinks
Clive Ellegaard; Adam E.Hansen; Anders Haaning; Kim Hansen; Anders Marcussen; Tomas Bohr; Jonas L.Hansen; Shinya Watanabe
Nature, 1998, [Reviewed] - Dynamics of one-dimensional Josephson-junction arrays
Herre S.J. van der Zant; Mauricio Barahona; Amy E. Duwel; Enrique Trias; Terry P. Orlando; Shinya Watanabe; Steven H. Strogatz
Physica D, 1998, [Reviewed] - Separation and pattern formation in hydraulic jumps
Tomas Bohr; Clive Ellegaard; Adam E.Hansen; Kim Hansen; Anders Haaning; Vakhtang Putkaradze; Shinya Watanabe
Physica A, 1998, [Reviewed] - Averaging theory for the structure of hydraulic jumps and separation in laminar free surface flows
Tomas Bohr; Vakhtang Putkaradze; Shinya Watanabe
Physical Review Letters, 1997, [Reviewed] - Stability of periodic solutions in series arrays of Josephson junctions with internal capacitance
Shinya Watanabe; James W. Swift, Lead
Journal of Nonlinear Science, 1997, [Reviewed] - Discreteness-induced resonances and ac voltage amplitudes in long one-dimensional Josephson junctions
Amy E.Duwel; Shinya Watanabe; Enrique Trias; Terry P. Orlando; Herre S.J.van der Zant; Steven H.Strogatz
Journal of Applied Physics, 1997 - Resonances of dynamical checkerboard states in Josephson arrays with self-inductance
Mauricio Barahona; Enrique Trias; Terry P.Orlando; Amy E. Duwel; Herre S.J. van der Zant; Shinya Watanabe; Steven H. Strogatz
Physical Review B, 1997, [Reviewed] - A novel phase-locked state in discrete Josephson oscillators
Amy E. Duwel; Terry P. Orlando; Shinya Watanabe; Herre S.J. van der Zant
IEEE Transactions on Applied Superconductivity, 1997, [Reviewed] - Dynamics of circular arrays of Josephson junctions and the discrete sine-Gordon equation
Shinya Watanabe; Herre S.J. van der Zant; Steven H. Strogatz; Terry P. Orlando, Lead
Physica D, 1996, [Reviewed] - Resonance splitting in discrete planar arrays of Josephson junctions
Amy E. Duwel; Enrique Trias; Terry P. Orlando; Herre S.J. van der Zant; Shinya Watanabe; Steven H. Strogatz
Journal of Applied Physics, 1996, [Reviewed] - Whirling modes and parametric instabilities in the discrete sine-Gordon equation: experimental tests in Josephson rings
Shinya Watanabe; Steven H. Strogatz; Herre S.J. van der Zant; Terry P. Orlando, Lead
Physical Review Letters, 1995 - Kink propagation in a highly discrete system: observation of phase locking to linear waves
Herre S.J. van der Zant; Terry P. Orlando; Shinya Watanabe; Steven H. Strogatz
Physical Review Letters, 1995, [Reviewed] - Resonant steps in parallel Josephson junction arrays: parametric instabilities of whirling modes
Shinya Watanabe; Steven H. Strogatz; Herre S.J. van der Zant; Terry P. Orlando, Lead
IEEE Transactions on Applied Superconductivity, 1995, [Reviewed] - Constants of motion for superconducting Josephson arrays
Shinya Watanabe; Steven H. Strogatz, Lead
Physica D, 1994, [Reviewed] - Vortices trapped in discrete Josephson rings
Herre S.J. van der Zant; Terry P. Orlando; Shinya Watanabe; Steven H. Strogatz
Physica B, 1994 - Integrability of a globally coupled oscillator array
Shinya Watanabe; Steven H. Strogatz, Lead
Physical Review Letters, 1993, [Reviewed] - The geometry of nonlinear Schroedinger standing waves: pure power nonlinearities
Paul K. Newton; Shinya Watanabe
Physica D, 1993, [Reviewed]
Books and other publications
Lectures, oral presentations, etc.
- Convergence of learning helical data using autoencoder
Shota Hattori; Shinya Watanabe
日本応用数理学会2024年度年会, 15 Sep. 2024 - Numerical Study on a Micro-structured Gas Separator utilizing the Soret effect
Takeshi KYODA; Shunsuke NOBE; Sohei MATSUMOTO; Shinya WATANABE; Naoki ONO
SEATUC 2022 (16th South East Asian Technical University Consortium), 24 Feb. 2022, South East Asian Technical University Consortium
20220223, 20220224 - Two-Dimensional Cascades of Near-Identity Maps for Almost Complete Separation of Gas Mixtures
Shinya Watanabe; Sohei Matsumoto; Takumi Sakiki; Takeshi Kyoda; and Naoki Ono
SIAM Conference on Applications of Dynamical Systems, 26 May 2021, SIAM
20210523, 20210527 - PERFORMANCE IMPROVEMENT OF MICROSTRUCTURED FLUID SEPARATOR UTILIZING THE SORET EFFECT
T. Saiki; S. Watanabe; S. Matsumoto; N. Ono
The 31st International Symposium on Transport Phenomena, 13 Oct. 2020, JSME, HTSJ, VSJ, GMSI
20201013, 20201016 - 非線形写像の2次元連成系での大域収束性を混合ガス分離へ応用する試み
渡邊辰矢; 斎木匠; 小野直樹; 松本壮平
日本応用数理学会 2020年度 年会, 09 Sep. 2020, 日本応用数理学会
20200908, 20200910 - Two-dimensional cascades of near-identity maps for almost complete separation of gas mixtures
Shinya Watanabe
Dynamics Days Digital 2020 (DDD2020), 25 Aug. 2020
20200824, 20200827 - Performance Improvement of Microstructured Fluid Separator Utilizing the Soret Effect
T. Saiki; T. Otsuka; T. Miyauchi; S. Matsumoto; S. Watanabe; N. Ono
16th Int. Conf. on Flow Dynamics (ICFD2019), 07 Nov. 2019 - Optimization of Micro-structured Gas Separator Utilizing the Soret Effect
K. Matsumoto; N. Takeda; K. Okamoto; S. Matsumoto; S. Watanabe; N. Ono
14th Int. Conf. on Flow Dynamics (ICFD2017), 02 Nov. 2017 - Development and Evaluation of Micro-structured Gas Separator Utilizing the Soret Effect
K. Matsumoto; M. Tsuchiya; S. Ootaki; S. Matsumoto; S. Watanabe; N. Ono
13th Int. Conf. on Flow Dynamics (ICFD2016), 11 Oct. 2016 - Almost complete separation of a fluid component from mixture using the Burgers' networks of micro-separators
Shinya Watanabe; Sohei Matsumoto; Naoki Ono
ICMMA 2015 'Self-Organization Modeling and Analysis', 28 Oct. 2015, 明治大学先端数理科学インスティテュート - 微小素子のBurgersネットワーク化による混合流体のほぼ完全な分離
渡邊 辰矢; 松本 壮平; 小野 直樹
日本応用数理学会2015年 年会, 10 Sep. 2015, 日本応用数理学会 - Almost complete separation of a fluid component from mixture using the Burgers networks of micro-separators
Shinya Watanabe; Sohei Matsumoto; Naoki Ono
ICIAM 2015 (8th International Congress on Industrial and Applied Mathematics), 13 Aug. 2015, The International Council for Industrial and Applied Mathematics (ICIAM) - 微小素子のBurgersネットワーク化による混合流体のほぼ完全な分離
渡邊辰矢
RIMS研究集会『力学系とその諸分野への応用』, 01 Jul. 2015, 荒井迅先生（北海道大学）、京都大学数理解析研究所 - Almost Complete Separation of a Fluid Component from a Mixture Using the Burgers Networks of Micro-separators
Shinya Watanabe; Sohei Matsumoto; Tomohiro Higurashi; Yuya Yoshikawa; and Naoki Ono
SIAM Conference on Applications of Dynamical Systems, 20 May 2015, SIAM - A simplified model for flows with eddies and locking of asymmetric flow patterns in a periodic channel with symmetric walls
渡辺辰矢
力学系理論の応用に関する研究会, 10 Mar. 2007, 機械工学における力学系理論の応用に関する研究会 - A simplified model for flows with eddies and locking of asymmetric flow patterns in a periodic channel with symmetric walls
Shinya Watanabe
International Workshop on Synchronization: Phenomena and Analyses, 04 Oct. 2006, Aihara Complexity Modelling Project, ERATO, JST
Research Themes
- Improvement aiming at high performance of gas separating device with Soret effect by applying consecutive microstructure
Grant-in-Aid for Scientific Research (C)
Shibaura Institute of Technology
01 Apr. 2015 - 31 Mar. 2018
